                                                                 GE 9/24/98

                          E16 Science Data Losses

201-05:37 - 268:04:33; Lost TFs in brackets[.....] Changes in Bold

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

                                    PPT

 201-09:23   14                 1     0 - Rate change    - Lost TF [36315] 3       S  3206
                                        40-80bps         RTS & 1 Priority
                                                         VCDUs

 201-17:02   43                 1     0 - Rate change    - Lost TF [36484] 2       S  3206
                                        120-60bps        RTS VCDUs

                                        NOTE- the s/c
                                        entered safing
                                        at ~ 201/1820
                                        ERT and
                                        remained in
                                        that state
                                        until
                                        205/0050z.

 206-00:16   63                 2     0 - Mode change    - Lost TFs [36705 &     SPA  3210
                                        to 2-way         36706] 3 RTS & 3
 -> 00:30                                                Priority VCDUs

 206-13:49   43                 1     0 - Mode change    - Lost TF [36823] 2     SPA  3211
                                        to 2-way         Priority VCDUs

 207-13:36   43                 2     0 - Mode change    - Lost TF [37033 &      SPA  3212
                                        to 2-way         37034] 2 RTS & 2
 -> 13:49                                                Priority VCDUs

 208-17:48   43                 2     0 - Real time      - Lost TF [37281 &      UPA  3213
                                        uplink and       37295] 4 RTS & 1
 19:24                                  2-way mode       Priority VCDUs
                                        change

 209-00:04   63                 1     0 - Mode change    - Lost TF [37336] 1     SPA  3213
                                        to 2-way         RTS VCDU

 210-07:21   14  DR#            3     0 - Unscheduled    - Lost TFs [37611,        A  3215
                 G03965                 mode changes     37615, 37627] 6 RTS
 07:48                                  due to red HTX   & 4 Priority VCDUs
                                        .
 09:10

 213-00:16   63                 1     0 - Mode change    - Lost TF 38742] 2      SPA  3217
                                        to 2-way         RTS & 2 Priority
                                                         VCDUs

 213-05:30   63                 2     2 - Unknown        - Lost TFs [38834 &       U  3217
                                                         38835] 7 PB & 1 RTS
 -> 05:37                                                VCDUs

                                                         **Recovered from
                                                         .fcd PPT file**

 214-13:10   43                 1     0 - Rate change    - Lost TF [39489] 4       S  3219
                                        80-120bps        PB VCDUs

 216-12:58   43                 1     0 - Rate change    - Lost TF [40331] 3       S  3221
                                        80-120bps        RTS & 1 Priority
                                                         VCDUs

 216-17:01   43                 1     0 - The last TF    - Lost TF [40441] 2       U  3221
                                        of the pass was  PB VCDUs
                                        not processed.
                                        Reason unknown.

 217-12:48   43                 1     0 - Rate change    - Lost TF [40790] 4       S  3222
                                        80 -120bps       PB VCDUs

 217-18:58   43                 2     2 - Unknown        - Lost TFs [40965 &       U  3222
                                                         40966] 7 PB & 1 RTS
 -> 19:03                                                VCDUs

                                                         **Recovered in .fcd
                                                         PPT file**

 217-22:10   43                 1     1 - Rate change    - Lost TF [41040] 4       S  3222
                                        60-40bps         PB VCDUs

                                                         **Recovered in .fcd
                                                         PPT file**

 218-12:39   43                 1     0 - Rate change    - Lost TF [41230] 4       S  3223
                                        60-80bps         RTS VCDUs

 218-21:12   43                 1     0 - Rate change    - Lost TF [41380] 4       S  3223
                                        60-40bps         PB VCDUs

 220-22:10   63                 1     0 - Rate change    - Lost TF [42106] 4       S  3225
                                        40-60bps         Priority VCDUs

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

                                    PPT

 222-12:29   43                 1     0 - Rate change    - Lost TF [42858] 3       S  3227
                                        80-120bps        RTS & 1 Priority
                                                         VCDUs

 223-12:15   43                 1     1 - Rate change    - Lost TF [43306] 4       S  3228
                                        60-80bps         PB VCDUs

                                                         **Recovered from
                                                         .fcd PPT file**

 224-12:19   43                 1     1 - Rate change    - Lost TF [43729 &        S  3229
                                        80-120bps        43730] 8 RTS VCDUs
 -> 12:24
                                                         **Recovered TF
                                                         [43730] from .fcd
                                                         PPT file**

 224-15:47   43  DR# A2859     11     0 - Inclement      - Lost TFs [43821 ->      W  3229
                                        weather          43831] 12 PB, 10 RTS
 -> 16:05                                                & 1 Priority VCDUs

 225-11:18   43  DR# A2863     68     0 - Inclement      - Lost TFs [44216,        W  3230
                                        weather          44218, 44234 ->
 -> 19:18                                                44237, 44258 ->
                                                         44262, 44286 ->
                                                         44289, 44296 &
                                                         44297, 44300 ->
                                                         44306, 44323 ->
                                                         44328, 44342, 44347,
                                                         44349, 44355 ->
                                                         44362, 44365 ->
                                                         44375, 44383 ->
                                                         44390, 44393, 44397
                                                         -> 44400, 44412 ->
                                                         44417] 209 PB, 59
                                                         RTS, & 10 Priority
                                                         VCDUs

 226-11:16   43                 1     0 - The first TF   - Lost TF [44647] 2       U  3231
                                        was lost         Priority VCDUs
                                        possibly due to
                                        link margin for
                                        bit rate at BOT
                                        (60bps).

 227-12:15   43                 1     0 - Rate change    - Lost TF [45081] 4       S  3232
                                        80-120bps        RTS VCDUs

 227-18:01   43  DR# A2870     23     0 - Inclement      - Lost TFs [45233 ->      W  3232
                                        weather          45254, & 45256] 77
 -> 18:51                                                PB, 13 RTS, & 2
                                                         Priority VCDUs
 18:54

 228-11:56   43                 1     1 - Rate change    - Lost TF [45504] 4       S  3233
                                        60-80bps         RTS VCDUs

                                                         **Recovered from
                                                         .fcd PPT file**

 229-10:56   43  DR# A2876     51     0 - Heavy rain     - Lost TFs                W  3234
                                                         [45902->45906,
 -> 17:11                                                45922->45925,
                                                         45933->45969, 45984
                                                         & 45985, 46026,
                                                         46044->46046,46054]
                                                         70 PB, 125 RTS, & 11
                                                         Priority VCDUs

 229-21:40   63  DR# L2415     17     0 - The DGT was    - Lost TFs                S  3234
                                        inoperable at    [46154->46170] 28
 -> 22:54                               BOT. The entire  PB, 21 RTS, & 2
                                        DGT was          Priority VCDUs
                                        reloaded to
                                        restore
                                        operability.

 230-10:57   43                 1     1 - Unknown        - Lost TF [46377] 3       U  3235
                                                         PB VCDUs

                                                         **Recovered in the
                                                         .fcd PPT file**

 233-10:08   14                 9     9 - FSR1           - Lost TFs [47766 ->      H  3238
                                        experienced a    47774] 34 RTS & 2
 -> 10:45                               "tone rotator    Priority VCDUs
                                        error". The FSR
                                        was inop during  **Recovered in the
                                        the stated       .fcd PPT file**
                                        period.

 233-10:45   43  DR# A2888     60     0 - The station    - Lost TFs [47775 ->      A  3238
                                        was unable to    47834] 195 PB, 33
 -> 13:13                               release the      RTS, & 4 Priority
                                        antenna brake.   VCDUs

 233-17:30   43  DR# A2892     71     0 - Heavy rain     - Lost TFs [47948 ->      W  3238
                                                         48018] 228 PB, 50
 -> 20:27                                                RTS, & 6 Priority
                                                         VCDUs

 235-10:33   43                 1     0 - Unknown        - Lost TF [48691] 3       U  3240
                                                         PB VCDUs

 236-00:01   63                 1     0 - Unknown        - Lost TF [48976] 3       U  3240
                                                         PB & 1 RTS VCDUs

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

                                    PPT

 237-12:36   43                 1     0 - Rate change    - Lost TF [49648] 4       S  3242
                                        80-120bps        PB VCDUs

 238-10:49   43                 5     0 - Real time      - Lost TFs [50027,      UPA  3243
                                        change to pass   50041 & 50042, 50046
 11:36                                  profile from     & 50047] 19 RTS & 1
                                        d/l only to u/l  Priority VCDUs
 -> 11:43                               for cmd. The
                                        first TF was
 11:53                                  missed when the
                                        sta configured
 -> 12:00                               for low noise
                                        after
                                        commanding and
                                        the next two
                                        set of two TFs
                                        were lost due
                                        to unscheduled
                                        mode changes.

 238-12:48   43                 6     0 - Rate change    - Lost TFs [50062 &       S  3243
                                        80-120bps        50063] 8 RTS VCDUs
 -> 12:54
                                        - Rate change    - Lost TF s [ 50199
 18:01                                  120-80bps        & 50200] 3 RTS VCDUs

 -> 18:07                               - Rate change
                                        80-60bps         - Lost TF [50242] 1
 20:27                                                   Priority VCDU
                                        - Rate change
 20:40                                  60-40bps         - Lost TF [50245] 1
                                                         RTS VCDU

 240-10:26   43                 1     1 - Rate change    - Lost TF [50855] 2       S  3245
                                        60-80bps         RTS VCDUs

                                                         **Recovered in the
                                                         .fcd PPT file**

 242-03:46   63                 1     1 - Rate change    - Lost TF [51497] 2       S  3246
                                        80-40bps         RTS VCDUs

                                                         **Recovered in the
                                                         .fcd PPT file**

 242-20:07   43                 2     0 - Rate change    - Lost TF [51770] 2       S  3247
                                        80-60bps         RTS VCDUs
 20:25
                                        - Rate change    - Lost TF [51774] 1
                                        60-40bps         RTS VCDUs

 243-20:01   43                 1     0 - Rate change    - Lost TF [52127] 1       S  3248
                                        80-60bps         RTS & 1 Priority
                                                         VCDUs

 244-05:00   63                 1     1 - Unknown        - Lost TF [52274] 3       U  3248
                                                         PB & 1 Priority
                                                         VCDUs

                                                         **Recovered in .fcd
                                                         PPT file**

 244-10:10   43                 1     1 - Rate change    - Lost TF [52360] 4       S  3249
                                        60-80bps         PB VCDUs

                                                         **Reecovered in .fcd
                                                         PPT file**

 245-03:25   63                 1     0 - Rate change    - Lost TF [52584] 4       S  3249
                                        60-40bps         PB VCDUs

 245-04:36   14                 1     1 - Rate change    - Lost TF [52598] 4       S  3250
                                        60-80bps         RTS VCDUs

                                                         **Recovered in .fcd
                                                         PPT file

 245-09:35   43  DR# A2923      4     0 - The GTC        - Lost TFs [52690 ->      S  3250
                                        required a       52693] 11 PB, 1 RTS
 -> 10:08                               reboot to        & 1 Priority VCDUs
                                        commence
                                        operation.

 246-09:45   43                 1     0 - Unknown        - Lost TF [53038] 4       U  3251
                                                         RTS VCDUs

 247-05:12   14  DR#            1     0 - The HTX was    - Lost TF [53333] 3       A  3252
                 G04095                 late finishing   RTS VCDUs
                                        calibration due
                                        to a T-bus
                                        anomaly. The
                                        station was
                                        late turning
                                        txr on due to
                                        aforementioned
                                        resulting in
                                        late 2-way mode
                                        change.

 247-09:56   43                 2     1 - Rate change    - Lost TF [53414] 4       S  3252
                                        60 -80bps        RTS VCDUs
 12:33
                                        - Rate change    **Recovered in .fcd
                                        80-120bps        PPT file**

                                                         - Lost TF [53460] 4
                                                         RTS VCDUs

 247-20:16   63                 2     1 - Rate change    - Lost TF [53628] 4       S  3252
                                        40-60bps         RTS VCDUs
 21:19
                                        - Rate change    **Recovered in .fcd
                                        60-80bps         PPT file**

                                                         - Lost TF [53641] 4
                                                         PB VCDUs

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

                                    PPT

 248-11:35   43                28     0 - The            - Lost TFs [53870 ->      A  3253
                                        Ultra-cone       53895, 53901, 53919]
 -> 12:45                               maser failed     83 RTS, 27 PB, & 2
                                        and the station  Priority VCDUs
 12:56                                  had to swap to
                                        the SPD maser
 13:37                                  which has ~1dbm
                                        of less gain.

 250-09:39   43                 2     2 - Rate change    - Lost TFs [54657 &       S  3255
                                        60 - 80bps       54658] 8 RTS VCDUs
 -> 09:46
                                                         **Recovered in .fcd
                                                         PPT file**

 250-18:02   43                 2     0 - Rate change    - Lost TFs [54863 &       S  3255
                                        120-80bps        54864] 7 PB & 1
 -> 18:09                                                Priority VCDUs

 251-11:02   43                 1     1 - Rate change    - Lost TF [55133] 4   S      3256
                                        80-120bps        RTS VCDUs

 251-14:36   43                 1     0 - Rate change    - Lost TF [55227] 1       S  3256
                                        120-60bps        PB VCDU

 252-19:29   43                 6     0 - The station    - Lost TFs [55841 ->    SPA  3257
                                        was scheduled    55846] 18 PB, 4 RTS,
 -> 19:52                               to end track     & 1 Priority VCDUs
                                        (1930) 22 mins
                                        before PWSfill
                                        was scheduled
                                        to start
                                        (1952z).

 253-03:46   63                 1     0 - Rate change    - Lost TF [55984] 4       S  3257
                                        80-60bps         PB VCDUs

 253-05:20   63                 1     0 - Rate change    - Lost TF [56005] 3       S  3257
                                        60-40bps         PB & 1 Priority
                                                         VCDUs

 253-07:17   14                 1     1 - Rate change    - Lost TF [56038] 4       S  3258
                                        80-120bps        PB VCDUs

 255-09:09   43  DR# A2942      4     4 - The GTC        - Lost TFs [57080 ->      S  3260
                                        required a       57083] 15 PB & 1
 -> 09:26                               reboot at BOT    Priority VCDUs
                                        to restore
                                        operability.

 255-19:08   43                 9     0 - The support    - Lost TFs [57325 ->    SPA  3260
                                        ended prior to   57333] 32 PB & 2
 -> 19:40                               scheduled start  Priority VCDUs
                                        of PWSfill.

 256-10:03   43                 3     3 - Rate change    - Lost TFs [57584 ->      S  3261
                                        80-120bps        57586] 12 PB VCDUs
 -> 10:11

 258-05:20   14                 1     1 - Rate change    - Lost TF [58477] 3       S  3263
                                        80-120bps        PB & 1 Priority
                                                         VCDUs

 258-08:11   14                 6     0 - Unknown        - Lost TFs [58553 ->      U  3263
                                                         58558] 24 PB VCDUs
 -> 08:30

 258-        43                12     1 - Heavy rain     - Lost TFs [58559 ->      W  3263
 08:30                                  and subsequent   58571] 15 PB & 1
                                        high SNT         Priority VCDUs **TF
 -> 08:56                                                58571 was
                                                         recovered**

 258-09:51   43                 1     1 - Rate change    - Lost TF [58587] 4       S  3263
                                        80-120bps        PB VCDUs

 258-19:32   63                 1     1 - Rate change    - Lost TF [58749] 4       S  3263
                                        40-60bps         Priority VCDUs

 259-02:50   14                 1     1 - Rate change    - Lost TF [58871] 3       S  3264
                                        40 - 60bps       PB & 1 Priority
                                                         VCDUs

 259-08:59   43                 1     0 - Rate change    - Lost TF [58970] 4       S  3264
                                        40-60bps         PB VCDUs

 260-21:12   63                 1     1 - Rate change    - Lost TF [59792] 4       S  3265
                                        60 - 80bps       RTS VCDUs

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

                                    PPT

 260-22:06   63                 1     0 - Unknown. The   - Lost TF [59808] 4       S  3265
                                        station reports  RTS VCDUs
                                        nominal
                                        equipment
                                        config and no
                                        weather,
                                        however, each
                                        TF is routinely
                                        taking 3 - 4
                                        passes through
                                        the FCD to
                                        successfully
                                        decode.

 261-02:44   14  DR#           16     0 - The SRCP IF    - Lost TFs [59888 ->      A  3265
                 G04097                 switch failed    59903] 20 RTS & 3
 -> 03:43                               and needed to    Priority VCDUs
                                        be replaced.

 261-05:59   14                 1     0 - Rate change    - Lost TF [59944] 1       S  3266
                                        80-120bps        RTS VCDU

 261-07:49  14   DR#            7     7 - DSS14          - Lost TFs [59993 ->      H  3266
                 G04100                 experienced a    60000] 10 RTS & 1
 -> 08:20                               "rotator arm"    Priority VCDUs
                                        anomaly in the
                                        FSR thereby
                                        accounting for
                                        their unability
                                        to deliver TFs
                                        from 0749z to
                                        EOT at 0840z.

 261-08:20   43                10     9 DSS43 had FSR    - Lost TFs [60001 ->      U  3266
                                        signal detected  60011] 10 RTS & 1
 -> 08:35                               at 0827z and     Priority VCDUs
                                        BTD lock at
                                        0851z. BOT was
                                        scheduled at
                                        0820z. The
                                        reason for
                                        outage is
                                        unknown.

 261-09:50   43                 1     1 - Rate change    - Lost TF [60033] 2       S  3266
                                        80-120bps        RTS VCDUs

 261-19:20   63  DR#           17     0 - The maser was  - Lost TFs [60270 ->     PD  3266
                 L02518                 not tuned to     60286] 21 RTS & 2
 -> 20:28                               the correct d/l  Priority VCDUs
                                        frequency for
                                        Galileo.

 265-00:14   63                 3     0 - Heavy rain     - Lost TFs [61792 ->      W  3269
                                                         61795, 61798 &
 -> 00:52                                                61799, 61803] 26 PB
                                                         VCDUs

 265-02:18   14                 1     0 - Rate change    - Lost TF [61828] 4       S  3270
                                        80-60bps         PB VCDUs

 265-12:37   43                 2       - When DSS14     - Lost TFs [62078 &       S  3270
                                        was removed      62079] 8 PB VCDUs
 -> 12:41                               from the array
                                        these two TFs
                                        were lost.

 265-17:42   43                 2     0 - Rate change    - Lost TF [62212] 3       S  3270
                                        120-80bps        PB & 1 Priority
 18:46                                                   VCDUs
                                        - Rate change
                                        80-60bps         - Lost TF [62231] 3
                                                         PB & 1 Priority
                                                         VCDUs

 266-02:11   63                 1     0 - Rate change    - Lost TF [62353] 4       S  3270
                                        80-60bps         PB VCDUs

 266-08:17   43                 1     0 - Unknown        - Lost TF [62456] 3       U  3271
                                                         PB VCDUs

 266-12:36   43                 4     0 - Heavy rain     - Lost TFs [62558,        W  3271
                                                         62560 -> 62562] 15
 12:40                                                   PB VCDUs

 -> 12:45

 266-20:25   63                 2     0 - Rate change    - Lost TF [62654] 3       S  3271
                                        60-80bps         PB & 1 Priority
 02:51                                                   VCDUs
                                        - Rate change
                                        80-60bps         - Lost TF [62767] 4
                                                         PB VCDUs

 267-09:18   43                 3     0 - Rate change    - Lost TF [62877] 4       S  3272
                                        80-120bps        PB VCDUs

                                        - Rate change    - Lost TFs [63087] 1
                                        120-80bps        Priority VCDUs

 268-04:41   14                 1     0 - Unknown. The   - Lost TF [63249] 2       U  3273
                                        loss occurred    RTS VCDUs
                                        during the
                                        beginning of
                                        the E17
                                        activities.

 TOTAL                        532    59

                                        Total Science    14598.25
                                        Frames:

                                        Total Frames     26979
                                        (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
