GE-6/01/98 E14 Science Data Losses 087-13:49 --->150-21:43; Lost TFs in brackets[.....] Changes in Bold Time DSS Reference RT Rcvd Events Comments Cause Pass (GMT) TFs # Lost from PPT 088-04:05 43 1 0 - Rate change - Lost TF S 3092 40 - 32 bps [8265] 3 RS VCDUs 088-05:30 43 1 0 - Rate change - Lost TF S 3092 32 - 20 bps [8275] 2 RTS VCDUs 088-10:47 63 1 0 - Unknown - Lost TF U 3092 [8308] 4 RTS VCDUs 089-04:23 43 1 0 - Rate change - Lost TF S 3093 40-32bps [8454] 2 RTS & 1 Priority VCDUs 090-21:48 14 2 1 - Rate change - Lost TF S 3095 40-32bps [8818 & 8819] 7 PB & 1 Priority VCDUs **TF [8819] recovered from the .fcd PPT file** 4 PB VCDUs 091-18:00 14 DR# 9 0 - Antenna - Lost TFs A 3096 G03564 pointing [8970 - -> 18:41 assembly (APA) 8978] 27 PB anomaly; the & 1 year was Priority incorrect in VCDUs the assembly, 1999 vs 1998. The year was corrected and the anomaly cleared. 103-14:15 63 1 1 - Rate change - Lost TF S 3107 32-20bps [10780] 4 PB VCDUs **Recovered in .fcd PPT file** 107-07:09 63 DR# 5 1 - The original - Lost TFs[ U 3111 L01998. reason was 11608, 07:22 unknown. 11610, 11620 & 08:30 - The Telecom 11621, analysis 11625] 17 -> 08:44 states that PB & 1 these frames Priority 09:18 were lost due VCDUs to high SPE. **TF [11625] recovered in the .fcd PPT file.4 PB VCDUs** 113-17:58 43 2 2 - The TIS was - Lost TFs I 3118 rebooted. [12953 & -> 18:11 12954] 5 Priority VCDUs **Recovered in the .fcd PPT file** 114-11:40 14 1 1 - The GTC did - Lost TF S 3119 not transmit [13136] 1 the first TF; PB & 1 possible GTC Priority merge anomaly. VCDUs **Recovered in the .fcd PPT file** 118-11:37 14 DR# 4 0 -The BTD and - Lost TFs S 3123 G03678 FCD2 required [13939 & -> 12:11 rebooting 13940, during the two 13945 & 12:45 time periods 13946] 8 to restore Priority & -> 13:00 output of tlm 7 PB VCDUs frames. 119-11:31 14 2 2 - GTC merge - Lost TFs S 3124 anomaly. The [14136 & -> 11:41 first two TFs 14137 7 were not Priority output. VCDUs **Recovered in the .fcd PPT file** 120-03:53 43 DR# 2 0 - FSR1 sample - Lost TFs U 3124 A02603 interruptions [14337 & -> 04:07 caused by 14338] 7 PB reasons & 1 unknown. Priority VCDUs 120-10:55 63 2 0 - Large SPE - Lost TFs U 3124 excursions. [14395 & -> 11:15 14396] 7 PB & 1 Priority VCDUs 121-19:05 43 2 2 - Unknown. - Lost TFs U 3126 Suspected GTC [14701 & 122-04:09 merge anomaly 14813] 6 PB when FCD1 & 1 drops out of Priority lock for an VCDUs unknown reason. **Recovered in the .fcd PPT file** Time DSS Reference RT Rcvd Events Comments Cause Pass (GMT) TFs # Lost from PPT 122-17:33 43 1 1 - Unknown. The - Lost TF U 3127 BTD performed [14899] 1 three PB & 1 auto-re-acq's Priority and the SNT VCDUs was >50k from BOT at 1715 - **Recovered ~ 17:35z. in the .fcd PPT file** 122-22:41 43 DR# 2 1 - Unknown. - Lost TFs U 3127 A02614 Suspected GTC [14959 & 23:00 merge anomaly 14963] 7 PB when FCD1 & 1 drops out of Priority lock for an VCDUs unknown reason. **TF [14963] recovered from .fcd PPT file** 123-20:21 43 DR# 5 3 - Unknown. - Lost TFs U/S 3128 A02620 FCD1 was [15105, -> dropping in 15135, and out lock 15138, 124-01:01 during this 15142, timeframe. The 15144] 18 fifth TF was PB & 2 lost when the Priority "stop" od for VCDUs FCD1 was entered. **TFs [15138, 15142, & 15144] recovered from the .fcd PPT file** 124-03:39 43 1 0 - Rate change - Lost TF S 3128 32-20bps [15168] 4 PB VCDUs 127-02:20 43 1 0 - Rate change - Lost TF S 3131 60-40bps [15753] 3 PB & 1 Priority VCDUs 128-00:37 43 DR# 11 0 - Solar - Lost TFs SS 3132 A02637 Scintillation [15971, -> 01:37 15973 -> 15978] 43 Pb & 1 Priority VCDUs 128-02:24 43 DR# 1 0 - Rate change - Lost TF S 3132 A02638 60-40bps [15993] 3 PB & 1 Priority VCDUs 128-06:30 63 DR# 6 4 - Solar - Lost TFs SS 3132 L02064 Scintillation [16025, -> 09:54 16039, 16041 & 16042, 16047, 16053 & 16054] 23 PB & 1 Priority VCDUs **TFs [16025, 16039, 16041, & 16054] recovered in the .fcd PPT file** 128-11:16 14 1 0 - Unknown - Lost TF U 3133 [16065] 2 Priority & 1 PB VCDUs **Note** the playback was halted and a DSS43 support (#3133) deleted so as to allow the station to support a radio science activity for a new gamma ray source. 20 Priority VCDUs lost during the time of deleted support. 130-16:39 43 FR# 90865 21 21 - The .bcs - Lost TFs I 3135 utility [16529 -> -> 18:57 halted. SMC7 16550] 76 required a PB & 4 reboot and Priority backup to VCDUs restore. **Recovered from the .fcd PPT file** 131-03:35 43 1 1 - Rate change - Lost TF S 3135 60-40bps [16657] 4 PB VCDUs **Recovered in the .fcd PPT file** 131-05:44 63 1 0 - The station - Lost TF U 3135 was late in [16672] 1 acquiring the PB 7 1 downlink Priority 2-way. VCDUs 132-17:10 43 FR# 4 4 - DSOT swapped - Lost TFs I 3137 100122 from SMC3 to [16994 -> -> 17:36 SMC7 after 16997] 8 BOT. Priority & Regrettably no 8 PB VCDUs GIF instance was running on **Recovered SMC7. in the .fcd PPT file** 138-03:17 43 1 1 - Unknown - Lost TF U 3142 [18144] 4 PB VCDUs **Recovered in the .fcd PPT file** 142-16:25 43 DR# 4 0 - A bad - Lost TFs S 3147 A02678 interface [19089, 16:40 between the 19091 -> GTC and the 19093] 14 -> 17:03 AMMOS GIF PB & 1 required a Priority reboot of the VCDUs GTC & BTD. 143-02:55 63 DR# 30 0 - The IF - Lost TFs A 3147 L02116 converter was [19244 -> -> 06:39 inop. The 19273] 94 station had to PB & 6 replace the IF Priority module to VCDUs restore operability. 147-11:06 14 2 - FCD1 was - Lost TFs S 3152 inoperative. [20377 & -> 11:17 It was rebootd 20378] 8 PB to restore. VCDUs 147-20:58 43 DR# 40 0 - FSR1 disk 2 - Lost TFs H 3152 A02694 failed. The [20564 -> -> 23:14 disk was 20603] 154 swapped out to PB, 4 restore. Priority, & 2 RTS VCDUs The s/c entered safing at 148/21:14:44z and remained in safing until 149/20:03:15Z 150-02:38 63 8 0 - DGT tlm prdx - Lost TFs UPA 3154 were built for [20871 -> -> 04:28 the incorrect 20878] 16 bit rate--80 Priority & vs 20bps. The 2 RTS VCDUs error was in the project keyword file. 150-16:31 43 8 0 - TWNC off and - Lost TFs UPA 3154 rate change to [20932 -> -> 17:07 80bps. 20939] 5 Priority VCDUs TOTAL 185 46 Total Science 10824.75 Frames: Total Frames 12880 (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