                                                                  GE 2/7/99

                          E18 Science Data Losses

325-12:38 - 99/030-02:46; Lost TFs in brackets[.....] Changes in Bold

 Time       DSS  Reference     RT  Rcvd Events             Comments       Cause  Pass
 (GMT)                        TFs                                                #
                             Lost  from

                                    PPT

 325-19:52   63                 2     2 - Internal DSOT    - Lost TFs         I  3330
                                        anomaly of an      [20951 &
 -> 20:06                               unknown nature     20952] 8 RTS
                                                           VCDUs

 325-23:15   14  DR# G4323      6     0 - The HTX tripped  - Lost TFs         A  3331
                                        off with a         [20989 ->
 ->                                     "output phase      20992, 20998,
                                        intolerance"       21003] 11 RTS
 326-00:21                              alarm. The HTX     VCDUs
                                        was released and
                                        two additional
                                        TFs were lost
                                        when the station
                                        configured low
                                        noise and the
                                        unscheduled mode
                                        change.

                                        The s/c entered
                                        safing at
                                        326-06:12z and
                                        remained in that
                                        state until
                                        327-04:01z

 327-04:56   14                 1     1 - Mode change      - Lost TFs [     UPA  3332
                                        that was not       21085] 3 RTS
                                        sequenced.         & 1 Priority
                                                           VCDUs

 327-14:53   63                 3     1 - Unknown          - Lost TFs         U  3332
                                                           [21152,
 -> 16:01                                                  21159, 21161]
                                                           7 RTS & 5
                                                           Priority
                                                           VCDUs **TF
                                                           21152
                                                           recovered 3
                                                           RTS & 1
                                                           Prioity VCDUs

 328-00:25  63                  3     1 - Unknown          - Lost TFs         U  3332
                                                           [21219 ->
 -> 00:41    14                                            21221] 8 RTS          3333
                                                           & 4 Priority
                                                           VCDUs

                                                           **TF 21219
                                                           recovered 2
                                                           RTS & 2
                                                           Priority
                                                           VCDUs

 328-01:24   14  ISA#          54     1 - The station was  - Lost TFs        PP  3333
                 10420                  briefed for the    [21227 -
 -> 04:41                               incorrect rate.    21281] 73 RTS
                 DR#                    This occurred      & 7 Priority
                 N49007                 during a RBS       VCDUs
                                        sequence prior to
                                        re-establishment   **Recovered
                                        of the originally  21227 4 RTS
                                        planned sequence   VCDUs
                                        order.

 328-16:43   63                 2     2 - Internal DSOT    - Lost TFs         I  3333
                                        anomaly of an      [21506 &
 -> 16:54                               unknown nature     21507] 2 RTS
                                                           & 1 Priority
                                                           VCDUs

 328-17:55   63                 9     9 - Internal DSOT    - Lost TFs         I  3333
                                        anomaly of an      [21527 &
 -> 20:19                               unknown nature     21528, 21536,
                                                           21540 ->
                                                           21542, 21565
                                                           -> 21567] 11
                                                           RTS & 3
                                                           Priority
                                                           VCDUs

 329-10:11   43  DR# A3129      2     0 - The HTX tripped  - Lost TF          A  3334
                                        off with "beam     [21750 &
 -> 10:20                               volts interlock    21751] 7 PB &
                                        open" alarm. The   1 Priority
                                        ACE elected to     VCDUs
                                        remain d/l only
                                        for the remainder
                                        of the support.

 329-14:45   43                 1     1 - Rate change      - Lost TF          S  3334
                                        40-60bps           [21806] 4 RTS
                                                           VCDUs

 329-15:24   63                 8     8 - During this      - Lost TFs         I  3334
                                        support the        [21814 &
 -> 21:23                               GIF-GTC interface  21815, 21837
                                        was ineffective    -> 21839,
                                        in transporting    21895, 21912
                                        TFs from the       & 21913] 5
                                        station to JPL.    PB, 18 RTS, &
                                        Reason unknown     1 Priority
                                        and this is a      VCDUs
                                        long standing
                                        anomaly. Most TFs
                                        are recovered in
                                        the PPT which is
                                        the prime data
                                        product.

 329-22:39   14                 1     0 - Unknown          - Lost TF          U  3335
                                                           [21928] 2 RTS
                                                           & 1 Priority
                                                           VCDUs

 Time       DSS  Reference     RT  Rcvd Events             Comments       Cause  Pass
 (GMT)                        TFs                                                #
                             Lost  from

                                    PPT

 330-01:14   14                 3     0 - The first u/l    - Lost TFs         U  3335
                                        sweep failed to    [21962 ->
 -> 01:27                               acquire the s/c    21964] 8 RTS
                                        receiver so a      & 4 PB VCDUs
                                        second was
                                        performed with
                                        the resulting
                                        unscheduled mode
                                        change.

 330-04:11   43                 1     0 - Rate change      - Lost TF          S  3335
                                        60-80bps           [22001] 4 RTS
                                                           VCDUs

 330-06:38   43                 1     0 - Rate change      - Lost TF          S  3335
                                        80-120bps          [22044] 4 PB
                                                           VCDUs

 330-19:06   63                 6     6 - During this      - Lost TFs         I  3335
                                        support the        [22298 ->
 -> 23:06                               GIF-GTC interface  22300, 22353
                                        was ineffective    & 22354,
                                        in transporting    22362] 9 PB &
                                        TFs from the       15 RTS VCDUs
                                        station to JPL.
                                        Reason unknown
                                        and this is a
                                        long standing
                                        anomaly. Most TFs
                                        are recovered in
                                        the PPT which is
                                        the prime data
                                        product.

 331-00:45   14  DR# G4331      3     0 - The ASC needed   - Lost TFs         A  3336
                                        to be reset at     [22385 ->
 -> 00:56                               BOT as it had      22387] 8 PB &
                                        lost interface to  2 Priority
                                        the ACS.           VCDUs

 331-01:34   14                 2     0 - Two TFs lost     - Lost TFs         U  3336
                                        for an unknown     [22399 &
 & 02:49                                reason.            22421] 4 PB &
                                                           4 RTS VCDUs

 331-04:06   43                 1     0 - Rate change      - Lost TF          S  3336
                                        60-80bps           [22441] 4 PB
                                                           VCDUs

 331-06:36   43                 1     0 - Rate change      - Lost TF          S  3336
                                        80-120bps          [22485] 4 PB
                                                           VCDUs

 331-18:22   63                 5     5 - During this      - Lost TFs         I  3336
                                        support the        [22643 &
 -> 20:52                               GIF-GTC interface  22644, 22673
                                        was ineffective    -> 22675] 12
                                        in transporting    PB & 8 RTS
                                        TFs from the       VCDUs
                                        station to JPL.
                                        Reason unknown
                                        and this is a
                                        long standing
                                        anomaly. Most TFs
                                        are recovered in
                                        the PPT which is
                                        the prime data
                                        product

 332-16:42   63                19    19 - During this      - Lost TFs         I  3337
                                        support the        [23038 &
 -> 22:21                               GIF-GTC interface  23039, 23042
                                        was ineffective    -> 23044,
                                        in transporting    23046 ->
                                        TFs from the       23049, 23051
                                        station to JPL.    -> 23054,
                                        Reason unknown     23073 &
                                        and this is a      23074, 23077
                                        long standing      & 23078,
                                        anomaly. Most TFs  23133 &
                                        are recovered in   23134] 35
                                        the PPT which is   RTS, 40 PB, &
                                        the prime data     1 Priority
                                        product            VCDUs

 333-03:57   43                 1     0 - Rate change      - Lost TF          S  3338
                                        60-80bps           [23228] 4 PB
                                                           VCDUs

 333-06:35   43                 1     0 - Rate change      - Lost TF          S  3338
                                        80-120bps          [23274] 4 PB
                                                           VCDUs

 333-07:10   43  DR#A 3142     14     2 - Heavy rain.      - Lost TFs         W  3338
                                                           [23289 ->
 -> 08:11                                                  23294, 23304
                                                           -> 23312,
                                                           23315] 51 PB,
                                                           4 RTS, & 1
                                                           Priority
                                                           VCDUs

                                                           **Recovered
                                                           TFs 23304 &
                                                           23305 * PB
                                                           VCDUs

 333-11:02   43                 1     0 - Rate change      - Lost TF          S  3338
                                        120-80 bps         [23391] 4 RTS
                                                           VCDUs

 333-13:41   43                 1     0 - Rate change      - Lost TF          S  3338
                                        80-60 bps          [23438] 4 PB
                                                           VCDUs

 333-14:13   43                 1     0 - Rate change      - Lost TF          S  3338
                                        60-40 bps          [23445] 4 PB
                                                           VCDUs

 333-14:35   63                 2     2 - Rate change      - Lost TFs         S  3338
                                        40-60bps           [23449 &
 -> 14:49                                                  23450] 8 PB
                                                           VCDUs

 Time       DSS  Reference     RT  Rcvd Events             Comments       Cause  Pass
 (GMT)                        TFs                                                #
                             Lost  from

                                    PPT

 333-16:31   63                 5     5 - During this      - Lost TFs         I  3338
                                        support the        [23474 &
 -> 17:09                               GIF-GTC interface  23475, 23482
                                        was ineffective    -> 23484] 12
                                        in transporting    RTS VCDUs
                                        TFs from the
                                        station to JPL.
                                        Reason unknown
                                        and this is a
                                        long standing
                                        anomaly. Most TFs
                                        are recovered in
                                        the PPT which is
                                        the prime data
                                        product

 333-21:25   63                 1     1 - Unknown          - Lost TF          U  3338
                                                           [23557] 4 PB
                                                           VCDUs

 334-06:42   43                 1     0 - Rate change      - Lost TFs         S  3339
                                        80-120bps          [23714] 3 RTS
 -> 06:48                                                  VCDUs

 334-18:47   63                 2     0 - Unknown          - Lost TFs         U  3339
                                                           [23935 &
 -> 18:56                                                  23936] 8 RTS
                                                           VCDUs

 335-09:16   43                 1     0 - Late AOS         - Lost TF          U  3340
                                                           [24213] 3
                                                           Priority
                                                           VCDUs

 335-09:34   43                 4     4 - During this      - Lost TFs         I  3340
                                        support the        [24221 ->
 -> 09:41                               GIF-GTC interface  24221, 24303]
                                        was ineffective    12 RTS & 4 PB
 13:50                                  in transporting    VCDUs
                                        TFs from the
                                        station to JPL.
                                        Reason unknown
                                        and this is a
                                        long standing
                                        anomaly. Most TFs
                                        are recovered in
                                        the PPT which is
                                        the prime data
                                        product

 335-14:30   63                 1     1 - Rate change      - Lost TF          S  3340
                                        40-60bps           [24310] 3 RTS
                                                           & 1 Priority
                                                           VCDUs

 335-15:49   63                 6     6 - During this      - Lost TFs         I  3340
                                        support the        [24326, 24328
 -> 18:27                               GIF-GTC interface  -> 24331,
                                        was ineffective    24367 &
                                        in transporting    24368] 14 RTS
                                        TFs from the       & 14 PB VCDUs
                                        station to JPL.
                                        Reason unknown
                                        and this is a
                                        long standing
                                        anomaly. Most TFs
                                        are recovered in
                                        the PPT which is
                                        the prime data
                                        product

 337-01:18   14  DR# G4351      3     0 - The HTX tripped  - Lost TFs         A  3342
                                        off causing an     [24891 ->
 -> 01:31                               unscheduled mode   24893] 12 PB
                                        change.            VCDUs

 337-16:09   63                17    17 - During this      - Lost TFs         I  3342
                                        support the        25104 &
 -> 21:22                               GIF-GTC interface  25105, 25108
                                        was ineffective    -> 25110,
                                        in transporting    25112
                                        TFs from the
                                        station to JPL.    -> 25115,
                                        Reason unknown     25129 &
                                        and this is a      25130, 25148
                                        long standing      -> 25150,
                                        anomaly. Most TFs  25187 ->
                                        are recovered in   25189] 34 PB,
                                        the PPT which is   22 RTS, & 2
                                        the prime data     Priority
                                        product            VCDUs

 338-14:43   63                 6     6 - During this      - Lost TFs         I  3343
                                        support the        [25466,
 -> 21:43                               GIF-GTC interface  25507, 25515
                                        was ineffective    & 25516,
                                        in transporting    25552 &
                                        TFs from the       25553] 10 RTS
                                        station to JPL.    & 1 Priority
                                        Reason unknown     VCDUs
                                        and this is a
                                        long standing
                                        anomaly. Most TFs
                                        are recovered in
                                        the PPT which is
                                        the prime data
                                        product

 338-00:45   14                 3     0 - Late AOS,        - Lost TFs         U  3344
                                        reason unknown     [25590 ->
 -> 00:56                                                  25592] 7 RTS
                                                           & 2 Priority
                                                           VCDUs

 Time       DSS  Reference     RT  Rcvd Events             Comments       Cause  Pass
 (GMT)                        TFs                                                #
                             Lost  from

                                    PPT

 339-16:35   63                 6     6 - During this      - Lost TFs         I  3344
                                        support the        [25840 &
 -> 17:07                               GIF-GTC interface  25841, 25843
                                        was ineffective    -> 25846] 11
                                        in transporting    RTS & 1
                                        TFs from the       Priority
                                        station to JPL.    VCDUs
                                        Reason unknown
                                        and this is a
                                        long standing
                                        anomaly. Most TFs
                                        are recovered in
                                        the PPT which is
                                        the prime data
                                        product

 339-21:09   14                 3     3 - During this      - Lost TFs         I  3345
                                        support the        [25897 ->
 -> 21:37                               GIF-GTC interface  25899] 7 RTS
                                        was ineffective    & 5 Priority
                                        in transporting    VCDUs
                                        TFs from the
                                        station to JPL.
                                        Reason unknown
                                        and this is a
                                        long standing
                                        anomaly. Most TFs
                                        are recovered in
                                        the PPT which is
                                        the prime data
                                        product

 340-14:47   63                 3     3 - During this      - Lost TFs         I  3345
                                        support the        [26181,
 -> 21:07                               GIF-GTC interface  26237, 26270]
                                        was ineffective    6 RTS VCDUs
                                        in transporting
                                        TFs from the
                                        station to JPL.
                                        Reason unknown
                                        and this is a
                                        long standing
                                        anomaly. Most TFs
                                        are recovered in
                                        the PPT which is
                                        the prime data
                                        product

 341-16:39   63                 4     4 - During this      - Lost TFs         I  3346
                                        support the        [26534 ->
 -> 19:45                               GIF-GTC interface  26536, 26574]
                                        was ineffective    7 RTS & 1
                                        in transporting    Priority
                                        TFs from the       VCDUs
                                        station to JPL.
                                        Reason unknown
                                        and this is a
                                        long standing
                                        anomaly. Most TFs
                                        are recovered in
                                        the PPT which is
                                        the prime data
                                        product

 342-17:22   63                 1     1 - During this      - Lost TF          I  3347
                                        support the        [26903] 1 RTS
 -> 20:39                               GIF-GTC interface  & 1 Priority
                                        was ineffective    VCDUs
                                        in transporting
                                        TFs from the
                                        station to JPL.
                                        Reason unknown
                                        and this is a
                                        long standing
                                        anomaly. Most TFs
                                        are recovered in
                                        the PPT which is
                                        the prime data
                                        product

 343-02:59   43                 2     0 - Rate change      - Lost TFs         S  3348
                                        40-60bps           [27010 &
 -> 03:13                                                  27011] 5 RTS
                                                           & 3 Priority
                                                           VCDUs

 343-07:56   43                 1     0 - Unknown          - Lost TF          U  3348
                                                           [27092] 2 RTS
                                                           & 1 Priority
                                                           VCDUs

 343-08:33   43                 1     0 - Early LOS,       - Lost TF          U  3348
                                        reason unknown     [27103] 2 RTS
                                                           VCDUs

 343-20:01   63                 1     1 - During this      - Lost TF          I  3348
                                        support the        [27255] 4 RTS
                                        GIF-GTC interface  VCDUs
                                        was ineffective
                                        in transporting
                                        TFs from the
                                        station to JPL.
                                        Reason unknown
                                        and this is a
                                        long standing
                                        anomaly. Most TFs
                                        are recovered in
                                        the PPT which is
                                        the prime data
                                        product

 344-03:03   43  DR# A3168      2     0 - Rate change      - Lost TFs         S  3349
                                        40-60bps.          [27319 &
 -> 03:13                                                  27320] 4 RTS
                                        - The BTD was      & 4 Priority
                                        inop and only the  VCDUs
                                        BVR-FCD1
                                        interface was
                                        available.

 Time       DSS  Reference     RT  Rcvd Events             Comments       Cause  Pass
 (GMT)                        TFs                                                #
                             Lost  from

                                    PPT

 344-03:49   43  DR# A3168      2     0 - - Rate change    - Lost TFs         S  3349
                                        60-80bps.          [27329 &
 -> 03:57                                                  27330] 8 RTS
                                        - The BTD was      VCDUs
                                        inop and only the
                                        BVR-FCD1
                                        interface was
                                        available.

 344-05:26   43  DR# A3168     11     0 - The BVR lost     - Lost TFs         S  3349
                                        Interface to the   [27357,
 -> 13:06                               FCD1               27385, 27440
                                        intermittently     & 27441,
                                        during the         27457 &
                                        support.           27458, 27463,
                                                           27472 &
                                                           27473, 27489]
                                                           19 RTS, 3
                                                           Priority
                                                           VCDUs

 344-12:25   43  DR# A3168      1     0 - Rate change      - Lost TF          S  3349
                                        80-60bps           [27480] 2 RTS
                                                           VCDUs

 345-02:52   43  DR# A3176      5     0 - The BTD was      - Lost TFs         S  3350
                                        inop and only the  [27644, 27649
 -> 04:15                               BVR-FCD1           & 27650,
                                        interface was      27662 ->
                                        available.         27663] 16 RTS
                                                           & 2 Priority
                                                           VCDUs

 345-03:51   43  DR# A3176      2     0 - Rate change      - Lost TFs         S  3350
                                        60-80bps           [27657 &
 -> 03:58                                                  27658] 8 RTS
                                                           VCDUs

 345-18:58   63                 6     5 - During this      - Lost TFs         I  3350
                                        support the        [27885, 27893
 -> 21:31                               GIF-GTC interface  -> 27895,
                                        was ineffective    27903, 27910]
                                        in transporting    20 RTS VCDUs
                                        TFs from the
                                        station to JPL.    ***All TFs
                                        Reason unknown     except
                                        and this is a      [27885]
                                        long standing      recovered***
                                        anomaly. Most TFs
                                        are recovered in
                                        the PPT which is
                                        the prime data
                                        product

 347-02:51   43                 2     1 - Rate change      - Lost TFs         S  3352
                                        40-60bps           [28248 &
 -> 03:02                                                  28249] 5
                                                           Priority & 3
                                                           PB VCDUs

                                                           **TF [28249]
                                                           recovered**

 347-03:52   43                 2     0 - Rate change      - Lost TFs         S  3352
                                        60-80bps           [28261 &
 -> 04:00                                                  28262] 7 PB &
                                                           1 Priority
                                                           VCDUs

 347-13:02   43                 1     0 - Rate change      - Lost TF          S  3352
                                        60-40bps           [28417] 3 RTS
 -> 13:08                                                  & 1 Priority
                                                           VCDUs

 347-14:59   63                 4     4 - During this      - Lost TFs         I  3352
                                        support the        [28436, 28439
 -> 15:27                               GIF-GTC interface  -> 28441] 13
                                        was ineffective    PB & 3 RTS
                                        in transporting    VCDUs
                                        TFs from the
                                        station to JPL.
                                        Reason unknown
                                        and this is a
                                        long standing
                                        anomaly. Most TFs
                                        are recovered in
                                        the PPT which is
                                        the prime data
                                        product

 347-20:18   63                 2     2 - During this      - Lost TF          I  3352
                                        support the        [28507 &
 -> 20:32                               GIF-GTC interface  28508] 7 PB &
                                        was ineffective    1 RTS VCDUs
                                        in transporting
                                        TFs from the
                                        station to JPL.
                                        Reason unknown
                                        and this is a
                                        long standing
                                        anomaly. Most TFs
                                        are recovered in
                                        the PPT which is
                                        the prime data
                                        product

 348-14:19   63                 9     8 - During this      - Lost TFs         I  3353
                                        support the        [28697 ->
 -> 22:13                               GIF-GTC interface  28700, 28702
                                        was ineffective    -> 28705,
                                        in transporting    28795] 12
                                        TFs from the       RTS, 12 PB, 3
                                        station to JPL.    Priority
                                        Reason unknown     VCDUs
                                        and this is a
                                        long standing      **Recovered
                                        anomaly. Most TFs  TFs [28697 &
                                        are recovered in   28698, 28702
                                        the PPT which is   -> 28705,
                                        the prime data     28795]**
                                        product

 Time       DSS  Reference     RT  Rcvd Events             Comments       Cause  Pass
 (GMT)                        TFs                                                #
                             Lost  from

                                    PPT

 349-13:30   63                 1     1 - During this      - Lost TF          I  3354
                                        support the        [28931] 4 RTS
                                        GIF-GTC interface  VCDUs
                                        was ineffective
                                        in transporting
                                        TFs from the
                                        station to JPL.
                                        Reason unknown
                                        and this is a
                                        long standing
                                        anomaly. Most TFs
                                        are recovered in
                                        the PPT which is
                                        the prime data
                                        product

 350-17:36   63                 5     5 - During this      - Lost TFs         I  3355
                                        support the        [29307 ->
 -> 19:03                               GIF-GTC interface  29309, 29324
                                        was ineffective    -> 29325] 13
                                        in transporting    RTS & 7
                                        TFs from the       Priority
                                        station to JPL.    VCDUs
                                        Reason unknown
                                        and this is a
                                        long standing
                                        anomaly. Most TFs
                                        are recovered in
                                        the PPT which is
                                        the prime data
                                        product

 351-11:17   43                 1     0 - Rate change      - Lost TF          S  3356
                                        80-60 bps          [29546] 4 PB
                                                           VCDUs

 351-12:33   43                 1     0 - Rate change      - Lost TF          S  3356
                                        60-40bps           [29563] 3 PB
                                                           & 1 RTS VCDUs

 351-13:05   43                 1     0 - Unknown          - Lost TF          U  3356
                                                           [29568] 1 RTS
                                                           VCDU

 351-18:01   63                 2     2 - During this      - Lost TFs         I  3356
                                        support the        [29631 &
 -> 18:11                               GIF-GTC interface  29632] 6 PB &
                                        was ineffective    2 RTS VCDUs
                                        in transporting
                                        TFs from the
                                        station to JPL.
                                        Reason unknown
                                        and this is a
                                        long standing
                                        anomaly. Most TFs
                                        are recovered in
                                        the PPT which is
                                        the prime data
                                        product

 351-21:32   14                 1     0 - Unknown          - Lost TF          U  3357
                                                           [29671] 4 RTS
                                                           VCDUs

 351-06:42   43                 1     0 - 2-way mode       - Lost TF        SPA  3357
                                        change             [29764] 4 PB
                                                           VCDUs

 352-15:48   63                 6     6 - During this      - Lost TFs         I  3357
                                        support the        [29859 ->
 -> 16:25                               GIF-GTC interface  29861, 29864
                                        was ineffective    -> 29866] 14
                                        in transporting    RTS, 7 PB, &
                                        TFs from the       3 Priority
                                        station to JPL.    VCDUs
                                        Reason unknown
                                        and this is a
                                        long standing
                                        anomaly. Most TFs
                                        are recovered in
                                        the PPT which is
                                        the prime data
                                        product

 352-20:41   14                 1     1 - Rate change      - Lost TF          S  3358
                                        32-40bps           [29923] 3 RTS
                                                           & 1 Priority
                                                           VCDUs

 353-05:11   43                 1     1 - During this      - Lost TF          I  3358
                                        support the        [30017] 4 RTS
                                        GIF-GTC interface  VCDUs
                                        was ineffective
                                        in transporting
                                        TFs from the
                                        station to JPL.
                                        Reason unknown
                                        and this is a
                                        long standing
                                        anomaly. Most TFs
                                        are recovered in
                                        the PPT which is
                                        the prime data
                                        product

 353-11:43   43                 2     2 - Unknown          - Lost TFs         U  3358
                                                           [30128 &
 -> 11:52                                                  30129] 7 RTS
                                                           & 1 Priority
                                                           VCDUs

 Time       DSS  Reference     RT  Rcvd Events             Comments       Cause  Pass
 (GMT)                        TFs                                                #
                             Lost  from

                                    PPT

 353-16:06   63                 3     3 - During this      - Lost TFs         I  3558
                                        support the        [30174 &
 -> 18:32                               GIF-GTC interface  30175, 30205]
                                        was ineffective    8 RTS & 4 PB
                                        in transporting    VCDUs
                                        TFs from the
                                        station to JPL.
                                        Reason unknown
                                        and this is a
                                        long standing
                                        anomaly. Most TFs
                                        are recovered in
                                        the PPT which is
                                        the prime data
                                        product

 354-14:23   63                16    16 - During this      - Lost TFs         I  3559
                                        support the        [30364, 30366
 -> 18:00                               GIF-GTC interface  -> 30369,
                                        was ineffective    30371 ->
                                        in transporting    30374, 30377
                                        TFs from the       -> 30379,
                                        station to JPL.    30383 &
                                        Reason unknown     30384, 30405
                                        and this is a      & 30406] 58
                                        long standing      RTS, 4
                                        anomaly. Most TFs  Priority, & 2
                                        are recovered in   PB VCDUs
                                        the PPT which is
                                        the prime data
                                        product

                                        NOTE***Some
                                        Galileo supports
                                        were given over
                                        to the NEAR
                                        Project in
                                        support of their
                                        s/c emergency.
                                        685 TFs
                                        consisting of
                                        1144 RTS, 500 PB,
                                        & 135 Priority
                                        VCDUs were lost
                                        during the lost
                                        supports.

 355-21:44   63                 2     0 - Unknown          - Lost TFs         U  3360
                                                           [30686 &
 -> 22:01                                                  30687] 7 RTS
                                                           & 1 Priority
                                                           VCDUs

 357-21:22   63                 2     0 - Unscheduled      - Lost TFs       UPA  3362
                                        mode change to     [31169 &
 -> 21:39                               support            31170] 8 RTS
                                        commanding.        VCDUs

 360-04:08   43  AR#           51    44 - The GTC-GIF      - Lost TFs         I  3365
                 101242                 connection was     [31722 ->
 -> 08:01                               lost. The GIF4     31772] 187
                                        was inoperative    RTS, 10 PB, &
                                        and required a     7 Priority
                                        reboot to restore  VCDUs
                                        operability.
                                                           TFs [31728 ->
                                                           31772]
                                                           recovered

 360-14:10   63  AR#            9     9 - The GIF4-TIS8    - Lost TFs         I  3365
                 101243                 .bcs interface     [31835 ->
 -> 15:54                               failed. The GIF4   31837, 31839
                                        lost the GTC-GIF   -> 31842,
                                        connection due to  31846 &
                                        the failed         31847] 23 RTS
                                        interface to the   & 3 Priority
                                        the TIS. GIF4 was  VCDUs
                                        rebooted to
                                        restore
                                        operability.

 360-18:43   63                 2     2 - During this      - Lost TFs         I  3365
                                        support the        [31873 &
 -> 19:25                               GIF-GTC interface  31878] 7 PB &
                                        was ineffective    1 RTS VCDUs
                                        in transporting
                                        TFs from the
                                        station to JPL.
                                        Reason unknown
                                        and this is a
                                        long standing
                                        anomaly. Most TFs
                                        are recovered in
                                        the PPT which is
                                        the prime data
                                        product

 361-01:57   43                 1     0 - The station      - Lost TF          U  3366
                                        acquired the       [31926] 4
                                        downlink late,     Priority
                                        reason unknown.    VCDUs

 361-12:24   43                 1     1 - The station      - Lost TF          U  3366
                                        lost the TF,       [32048] 1 PB
                                        reason unknown.    VCDU

 363-19:44   63                 1     1 - Heavy rain       - Lost TF          W  3368
                                                           [32563] 4
                                                           Priority
                                                           VCDUs

 363-21:13   63                 1     0 - Rate change      - Lost TF          S  3368
                                        40-32bps           [32573] 4 RTS
                                                           VCDUs

 363-21:54   63                 1     0 - Rate change      - Lost TF          S  3368
                                        32-20bps           [32578] 4 RTS
                                                           VCDUs

 Time       DSS  Reference     RT  Rcvd Events             Comments       Cause  Pass
 (GMT)                        TFs                                                #
                             Lost  from

                                    PPT

 364-21:50   14  DR# G4463      1     0 - The HTX tripped  - Lost TF          A  3370
                                        off and after a    [32802] 4 RTS
                                        resweep of the     VCDUs
                                        uplink it the HTX
                                        tripped again.
                                        The TF was lost
                                        during an
                                        unscheduled mode
                                        change.

 365-01:49   43                 9     9 - DSOT swapped     - Lost TFs         I  3370
                                        from GIF3 to       [32837 ->
 -> 02:52                               GIF4. GIF3 was     32845] 34 RTS
                                        not receiving the  & 2 Priority
                                        TFs and monitor    VCDUs
                                        data from t he
                                        GTC at DSS43.

 365-13:17   63  DR# L2844      1     0 - The DGT          - Lost TF          S  3370
                                        predicts were      [32945] 4
                                        incorrect and      Priority
                                        required manual    VCDUs
                                        modification
                                        before the DGT
                                        would run
                                        utilizing the
                                        predicts.

 365-19:03   63                 5     0 - Unknown          - Lost TFs         U  3371
                                                           [32995 ->
 -> 19:34                                                  32999] 19 PB
                                                           & 1 Priority
                                                           VCDUs

 001-12:02   43                 1     0 - Rate change      - Lost TF          S  3371
                                        40-32bps           [33183] 3 PB
                                                           V CDUs

 002-03:58   43  DR# A3254     14     0 - Heavy rain       - Lost TFs         W  3372
                                                           [33303, 33310
 -> 08:13                                                  -> 33315,
                                                           33317 &
                                                           33318, 33354
                                                           -> 33358] 55
                                                           PB & 1
                                                           Priority
                                                           VCDUs

 002-22:08   63                 1     1 - Unknown          - Lost TF          U  3372
                                                           [33483] 4 PB
                                                           VCDUs

 004-01:05   43                27     0 - The Mars Polar   - Lost TFs       UPA  3374
                                        Lander Project     [33685 ->
 -> 04:02                               during the Launch  33721] 96 PB
                                        and Early Orbit    & 12 Priority
                                        Period requested   VCDUs
                                        DSS43 to help the
                                        project obtain
                                        2-way doppler.

 005-19:15   14  DR# G4480     31     0 - The DGT was      - Lost TFs         H  3376
                                        unable to be       [34116 ->
 -> 23:47                               configured         34146] 110 PB
                                        primarily due to   & 16 Priority
                                        a BTD failure      VCDUs
                                        from BOT @ 1915z.
                                        The station later
                                        configured the
                                        DGT for FCD1 ops
                                        only and was able
                                        to lock tlm at
                                        2347Z.

 008-03:02   43                 1     0 - The station is   - Lost TF        SPA  3378
                                        routinely unable   [34667] 3
                                        to run either the  Priority
                                        FSR or BVR's due   VCDUs
                                        an SNT at
                                        scheduled BOT in
                                        excess of 150k.
                                        The station
                                        delays running
                                        equipment until
                                        BOT + 5-10 min at
                                        which time the
                                        SNT is normally
                                        below 40k.

 007-01:21   43                 1     0 - The station is   - Lost TF        SPA  3377
                                        routinely unable   [34388] 2
                                        to run either the  Priority
                                        FSR or BVR's due   VCDUs
                                        an SNT at
                                        scheduled BOT in
                                        excess of 150k.
                                        The station
                                        delays running
                                        equipment until
                                        BOT + 5-10 min at
                                        which time the
                                        SNT is normally
                                        below 40k.

 008-03:11   43  DR# A3281     33     0 - Heavy rain       - Lost TFs         W  3378
                                                           [34669 ->
 -> 10:41                                                  34672, 34686,
                                                           34721 ->
                                                           334729, 34731
                                                           -> 34736,
                                                           34747 ->
                                                           34754, 34757
                                                           -> 34759,
                                                           34765, 34767]
                                                           125 PB & 7
                                                           Priority
                                                           VCDUs

 008-11:42   43                 1     1 - Unknown          - Lost TF          U  3378
                                                           [34777] 1 PB
                                                           VCDU

 008-18:27  63                  4     4 - Rate change      - Lost TFs         S  3378
                                        40-20bps           [34833 ->
 -> 19:04    14                                            34836] 15 PB          3379
                                                           & 1 Priority
                                                           VCDUs

 Time       DSS  Reference     RT  Rcvd Events             Comments       Cause  Pass
 (GMT)                        TFs                                                #
                             Lost  from

                                    PPT

 009-        43                 1     0 - The station is   - Lost TFs       SPA  3379
 01:22                                  routinely unable   [34889] 3 PB
                                        to run either the  & 1 Priority
                                        FSR or BVR's due   VCDUs
                                        an SNT at
                                        scheduled BOT in
                                        excess of 150k.
                                        The station
                                        delays running
                                        equipment until
                                        BOT + 5-10 min at
                                        which time the
                                        SNT is normally
                                        below 40k.

 009-20:36   63                 6     6 - The GTC did not  - Lost TFs         S  3379
                                        send TFs to the    [35092 &
 -> 20:50                               GIF during the     35093, 35095
                                        stated time        -> 35098] 23
 20:56                                  periods. The GTC   PB & 1
                                        could have lost    Priority
 -> 21:29                               its connection to  VCDUs
                                        the GIF.

 010-18:55   14                 1     1 - The first TF     - Lost TF          U  3381
                                        was missed at      [35277] 2
                                        BOT. Reason        Priority
                                        unknown.           VCDUs

 011-05:10   43  DR# A3286      5     0 - Heavy rain       - Lost TFs         W  3381
                                                           [35382 ->
 -> 05:27                                                  35386] 20 PB
                                                           VCDUs

 011-19:31   63                 1     0 - The first TF     - Lost TF          U  3381
                                        was missed at      [35539] 1
                                        BOT. Reason        Priority
                                        unknown.           VCDUs

 012-11:26   43                 1     0 - The last TF in   - Lost TF          U  3382
                                        the support was    [35779] 3 PB
                                        lost, reason       VCDUs
                                        unknown.

 016-19:58   63                 1     1 - The TF in        - Lost TF          I  3386
                                        question was not   [36901] 4 PB
                                        received on        VCDUs
                                        either the
                                        broadcast or TDS.
                                        It appears to be
                                        a re-occurrence
                                        of the loss of
                                        GTC-GIF
                                        interface.

 018-00:45   43                 1     0 - The station is   - Lost TF        SPA  3388
                                        routinely unable   [37231] 1
                                        to run either the  Priority VCDU
                                        FSR or BVR's due
                                        an SNT at
                                        scheduled BOT in
                                        excess of 150k.
                                        The station
                                        delays running
                                        equipment until
                                        BOT + 5-10 min at
                                        which time the
                                        SNT is normally
                                        below 40k.

 018-03:34   43                 2     2 - Unknown          - Lost TFs         U  3388
                                                           [37267 &
 -> 03:41                                                  37268] 8 PB
                                                           VCDUs

 019-19:27   14  DR# G4531      6     0 - The station      - Lost TFs         S  3390
                                        swapped GTC's due  [37732 ->
 -> 20:08                               to a GTC anomaly   37737] 22 PB
                                        of an unknown      VCDUs
                                        nature.

 019-21:50   14  DR# G4532      2     0 - The station had  - Lost TFs        PD  3390
                                        to resweep the     [37753 &
 -> 22:04                               uplink as the      37754] 8 PB
                                        first uplink       VCDUs
                                        sweep did not
                                        capture the s/c
                                        receiver.

 020-18:25   14                 1     1 - Unknown          - Lost TF          U  3391
                                                           [37941] 2
                                                           Priority
                                                           VCDUs

 020-19:06   14  DR# G4540     37     0 - The antenna was  - Lost TFs         W  3391
                                        taken to stow due  [37946 ->
 -> 20:52                               to high winds.     37964, 37975
                                                           -> 37992] 143
 21:38                                                     PB & 5
                                                           Priority
 -> 23:00                                                  VCDUs

 021-18:24   63                 2     2 - The TF in        - Lost TFs         I  3391
                                        question was not   [38263 &
 20:03                                  received on        38279] 3 PB &
                                        either the         2 Priority
                                        broadcast or TDS.  VCDUs
                                        It appears to be
                                        a re-occurrence
                                        of the loss of
                                        GTC-GIF
                                        interface.

 Time       DSS  Reference     RT  Rcvd Events             Comments       Cause  Pass
 (GMT)                        TFs                                                #
                             Lost  from

                                    PPT

 022-07:51   43                 2     1 - Solar            - Lost TFs        SS  3392
                                        scintillation      [38403 &
 09:47                                  noise              38421] 7 PB &
                                                           1 Priority
                                                           VCDUs

                                                           **TF [38403]
                                                           recovered 4
                                                           PB VCDUs

 022-17:55   63                 1     0 - Unknown          - Lost TF          U  3392
                                                           [38486] 4 PB
                                                           VCDUs

 02219:09    63                       1 - The TF in        - Lost TF          I  3392
                                        question was not   [38497] 4 PB
                                        received on        VCDUs
                                        either the
                                        broadcast or TDS.
                                        It appears to be
                                        a re-occurrence
                                        of the loss of
                                        GTC-GIF
                                        interface.

 023-00:30   43                 1     1 - The station is   - Lost TF        SPA  3393
                                        routinely unable   [38542] 4
                                        to run either the  Priority
                                        FSR or BVR's due   VCDUs
                                        an SNT at
                                        scheduled BOT in
                                        excess of 150k.
                                        The station
                                        delays running
                                        equipment until
                                        BOT + 5-10 min at
                                        which time the
                                        SNT is normally
                                        below 40k.

 023-08:33   43  DR# A3337      2     0 - A lightning      - Lost TFs         W  3393
                                        strike on the      [38658 &
 -> 08:47                               Ulra-cone maser    38659] 7 PB &
                                        caused the loss    1 Priority
                                        of these two       VCDUs
                                        frames.

 023-09:28   43  DR# A3338      6     0 - Inclement        - Lost TFs         W  3393
                                        weather            [38669 ->
 -> 09:55                                                  38674] 23 PB
                                                           & 1 Priority
                                                           VCDUs

 025-11:00   63                 1     1 - Rate change      - Lost TF          S  3395
                                        20-32bps           [39206] 4 PB
                                                           VCDUs

 025-14:00   63                 1     1 - The TF in        - Lost TF          I  3395
                                        question was not   [39230] 4 PB
                                        received on        VCDUs
                                        either the
                                        broadcast or TDS.
                                        It appears to be
                                        a re-occurrence
                                        of the loss of
                                        GTC-GIF
                                        interface.

 026-06:28   43  DR# A3348      2     0 - Inclement        - Lost TFs         W  3396
                                        weather            [39454 &
 -> 07:06                                                  39455] 7 PB
                                                           VCDUs

 027-18:30   14  AR#101328      2     2 - GLPDB3 halted    - Lost TFs         I  3398
                                        and required a     [39730 &
 -> 18:47                               reboot to          39731] 8 PB
                                        restore.           VCDUs

 028-00:28   43                 1     0 - The station is   - Lost TF        SPA  3398
                                        routinely unable   [39781] 4 PB
                                        to run either the  VCDUs
                                        FSR or BVR's due
                                        an SNT at
                                        scheduled BOT in
                                        excess of 150k.
                                        The station
                                        delays running
                                        equipment until
                                        BOT + 5-10 min at
                                        which time the
                                        SNT is normally
                                        below 40k.

 028-00:55   43                 6     0 - Unscheduled txr  - Lost TFs       UPA  3398
                                        activity due to    [39786 &
 -> 06:37                               red txr at DSS14.  39787, 39806,
                                        This activity      39872 ->
                                        caused             39874] 22 PB,
                                        unscheduled mode   1 RTS, & 1
                                        changes.           Priority
                                                           VCDUs

 028-12:15   63                 1     0 - The station was  - Lost TF       U/SS  3398
                                        unsuccessful in    [39939] 3
 & 17:50                                decoding this      Priority & 1
                                        frame, reason      RTS VCDUs
                                        unknown but
                                        perhaps it may be
                                        solar
                                        scintillation.

 028-14:25   63                 1     1 - The TF in        - Lost TF          I  3398
                                        question was not   [39958] 1
                                        received on        Priority VCDU
                                        either the
                                        broadcast or TDS.
                                        It appears to be
                                        a re-occurrence
                                        of the loss of
                                        GTC-GIF
                                        interface.

 028-17:50   63                 1     1 - The TF in        - Lost TF          I  3398
                                        question was not   [39989] 1
                                        received on        Priority VCDU
                                        either the
                                        broadcast or TDS.
                                        It appears to be
                                        a re-occurrence
                                        of the loss of
                                        GTC-GIF
                                        interface.

 029-05:57   43  FR# 90881     14    14 - GLPDB3           - Lost TFs         I  3399
                                        experienced a      [40111 ->
 -> 07:32                               disk I/O failure.  40124] 4
                                        The TDS was        Priority & 2
                                        rebooted to        RTS VCDUs
                                        restore
                                        operability.

 029-11:01   63  AR#           39    39 - GLPDB3 rebooted  - Lost TFs         I  3399
                 101388                 itself.            [40151 ->
 -> 15:35                                                  40191] 8
                                                           Priority & 6
                                                           RTS VCDUs

                                        The E18 sequence
                                        ended at 030 /
                                        0246.

 TOTAL                        667   322

                                        Total Science      11989
                                        Frames:

                                        Total Frames       19367
                                        (including Fill):

PP - Procedural (Project) Transfer Frames #s lost in brackets [.........]

PD - Procedural (DSN)

H - H/W Related/Failure

A - Antenna Problem

S - S/W Related

UPA - Unscheduled project action

SPA - Scheduled Project activity

GCF- GCF hardware/software anomaly

F - Facility problem (e.g. power failure)

U - Unknown

W - Weather (e.g. Parkes stow due to high winds)

I - Internal JPL AMMOS anomaly

JN - Jupiter Hot Body Noise

SS - Solar Scintillation

SE - SPACECRAFT EMERGENCY
