GE- 2/17/97 E4 Science Data Losses 350-00:50 ---> 048-08:07; Lost TFs in brackets[.....] Changes in Bold Time (GMT) DSS Reference RT Rcvd Events Comments Cause Array TFs Ops Lost from Related? PPT 350-17:58 63/14 1 1 - DSS14 BOT - Missed TF [49154] 3 S No RTS VCDUs. There are - DSS63 EOT extenuating circumstances - bit rate = 8bps involved with this outage: 1) the low bit rate, 8bps, and 2) the correspondingly long frame decommutation time. 350-21:38 14/43 1 0 - 20 ->32bps rate - Missed TF [49169] 4 U U change RTS VCDUs - DSS43 BOT 351-02:06 42 DR A00867 9 0 - Power failure at - Missed TFs [49236 F Yes SPC40 from 02:06 to -> 49245] 39 RTS 43 DR A00868 02:40 VCDUs and 1 Priority VCDU 351-04:30 43 DR A00870 1 0 - Unknown - Missed TF [49278] 3 U U RTS VCDUs and 1 Priority VCDU 351-08:12 43 ISA 10771 4 0 - Real time commanding - Missed TFs [49332, SA No made necessary by DMS 49333, 49337, & anomaly. 49338] 10 RTS VCDUs and 2 Priority VCDUs 351-17:45 14 DR G01550 1 0 - DSS14 was late going - Missed TF [49385] 3 PD No to point in order to RTS VCDUs and 1 allow for calibration Priority VCDU of the high power transmitter and a cmd data transfer. 351-22:00 14/43 2 0 - Unknown, possibly - Missed TFs [49403 & U Yes related to DR A00873 49403] 8 RTS VCDUs Missed BRC: 32->60 @ 2204 351-23:32 14/43 DR A00873 6 0 -Three bit rate changes - Missed TFs U Yes to missed during the [49423,49424, mentioned timeframe. 49462,49463, & 352- 02:30 Reason for the outage 49471,49472] 24 RTS unknown; it may VCDUs. possibly be predicts related. Missed BRCs: 1) 60->80 @ 2335, 2) 80->60 @ 0150, and 3) 60->80 @ 0230. 352-06:50 43 2 1 - Real time commanding. - Missed TFs [49536 & UPA No The project opted to 49538] 3 RTS VCDUs uplink the E4A sequence early. - TF 49536 recovered from the PPT 352-08:43 43 2 0 -2-way mode changed -Missed TFs [49561 & UPA No caused by real time 49562] 7 RTS VCDUs commanding activity. 352-17:34 14 DR G01554 11 11 - FCDs 1 & 2 had - Missed TFs [49599 S No processed (7) TFs but ->49610] 83 RTS VCDUs no frames were & 5 Priority VCDUs transmitted to JPL. -BRC 20 -> 8bps at 1807. 352-22:13 43 DR A00876 2 0 - DSS42 phase variation - Missed TFs [49626 & S Yes was out of tolerance at 49627] 8 RTS VCDUs the FSC 352-23:20 49 DR A00877 7 0 -DSS49 FSR 1 hr 45 min - Missed TFs U U late detecting signal. [49640->49645 & The timeframe in 49649] 8 RTS VCDUs & question is from 2 Priority VCDUs 352-23:20->353/01:15z. 353-08:40 43 DR A00878 3 0 - DSS43 lost three TFs - Missed TFs [49735, U U during two scheduled 49741&49742] bit rate changes (BRC): 40->20bps & 20->8bps Time (GMT) DSS Reference RT Rcvd Events Comments Cause Array TFs Ops Lost from Related? PPT 353-15:51 63 DR L00771 2 2 - Both FCD1 &2 data - Missed TFs [49751 & S No times were 1.5 hrs 49752] 5 Priority behind real time. The VCDUs FCDs were rest per OPD-142. 353-17:12 14 3 0 - Scheduled mode - Missed TFs SPA No changes, 3-way->1-way, [49757->49759] 2 RTS 1 and Priority VCDUs ->2-way, from approx 1815-1931. 354-06:08 43 DR N42012 3 0 - DSS49 went to stow - Missed TFs W Yes from 0608-0628. DSS49 [49853->49855] 11 RS went to stow twice and 1 Priority VCDUs earlier in the array without data loss. 354-21:43 14/43 DR#G01567 8 1 - 43 BOT @21:40 U U ----> DR#A00883 - 20-->40bps rate - Lost TFs [49886], 4 change @21:47 (1 TF RTS VCDUs 355- 01:23 lost) - Lost TFs [49900]; 4 - 40-->60pbs rate RTS VCDUs change @22:19(1 TF lost) - Lost TFs[49916-->49918]; - 60-->80bps rate 11RTS & 1 PRI VCDUs change @22:31(3 TFs lost) - Lost TFs[49946-->49948]; - 80-->60pbs rate 11RTS & 1 PRI VCDUs change @01:14(3 TFs lost) ***Recovered in DTF21 Processing Facility [49948] 355-02:54 43 2 0 -2W-->1W; 43 LOS before - Lost PP? U fill TFs[49969,49970]; 1 RTS & 1 PRI VCDU - Freq shift duration not in TLMGEN 355-21:03 14 DR# 1 0 - Unknown. - Lost TF [50065] 4 U No G01574 RTS VCDUs - A DR was opened lumping this missing TF in with the missed BRC at 21:17. 355-21:17 14 DR# 1 0 - BRC 20->32bps - Lost TF [50066] 4 U No G01574 RTS VCDUs 356-08:00 43 DR# 3 0 - BRC 40->20bps - Lost TF [50164] 4 U U A00885 RTS VCDUs 356-09:06 - BRC 20->8bps - Lost TFs [50169 & 50170] 3 RTS VCDUs 356-11:10 63 1 1 Unknown. - Lost TF [50173] 4 U No approx Priority VCDUs 357-08:26 43 DR# 1 0 Unknown - Lost TF [50312] 4 U U A00889 PB VCDUs 357-09:12 43 1 0 BRC 20->8bps - Lost TF [50314] 2 U U RTS VCDUs 357-12:03 63 2 1 Unknown - Lost TFs [50320 & U No 50321] 4 PB VCDUs & 2 Priority VCDUs -**TF [50321] recovered in PPT** 357-21:15 14 DR# 1 0 - Occurred during the - Lost TF [50337]; 4 U No G01587 scheduled BRC 8->20bps Priority VCDUs 357-22:12 43 DR# 2 0 Unknown - Lost TFs [50342 & U U A00890 50343] 8 PB VCDUs 357-23:49 43 DR# 1 0 Unknown. - Lost TF [50358] 4 U U A00890 PB VCDUs Time (GMT) DSS Reference RT Rcvd Events Comments Cause Array TFs Ops Lost from Related? PPT 358-22:39 43 DR# 3 0 -BRC 40->60bps - Lost TF [50467] 4 U U A00897 PB VCDUs 358-23:16 -BRC 60->80bps - Lost TF [50475] 4 359-01:02 -BRC 80->60bps PB VCDUs - Lost TF [50506] 4 PB VCDUs 358-22:57 43 DR# 5 0 - Unknown. - Lost TF [50471] 4 U U A00898 PB VCDUs 358-23:02 - Lost TF [50472] 4 358-23:23 PB VCDUs 358-23:46 - Lost TF [50477] 2 PB VCDUs 359-00:58 - Lost TF [50484] 4 PB VCDUs - Lost TF [50505] 3 PB VCDUs 358-23:53 49 DR# 7 1 - DSS49 to stow due to - Lost TF [50486] 4 W No A00899 high winds at PB VCDUs 359-00:00 358-23:48. - Lost TF [50488] 4 359-00:14 - DSS49 back on point PB VCDUs and in the array at 359-00:21 359-01:06 - Lost TF [50492] 4 PB VCDUs 359-00:38 - Lost TF [50494] 4 359-00:45 PB VCDUs 359-00:48 - Lost TF [50499] 4 PB VCDUs - Lost TF [50501] 4 PB VCDUs - Lost TF [50502] 4 PB VCDUs ***TF [50494 recovered from PPT*** 359-21:33 43 2 0 - The first TF was lost - TFs [50629 & 50630] U U at 21:33. Reason were lost only over unknown. DSS43. - The second TF was lost at 21:43 during the scheduled BRC 32->40bps. Both TFs were recovered from DSS14. 359-23:01 49 DR# 3 0 DSS49 was at stow from - Lost TF [50645] 4 W No A00900 359-23:10 -> 360-06:35. PB VCDUs 359-23:14 - Lost TF [50648] 4 359-23:25 PB VCDUs - Lost TF [50651] 4 PB VCDUs 360-22:14 43 DR# 3 0 DSS43 reports - Lost TF [50810] 3 S Yes A00903 correlation phase error RTS VCDUs 361-00:17 in all three instances. - Lost TF [50841] 4 361-00:24 RTS VCDUs - Lost TF [50843] 4 RTS VCDUs 360-22:09 43 2 0 - BRC 40->60bps - Lost TF [50808] 4 U U RTS VCDUs 361-08:38 - BRC 32->8bps - Lost TF [50947] 4 RTS VCDUs 361-00:55 49 DR# 1 0 - DSS49 to stow at - Lost TF [50582] 4 W No A00904 361-00:44 -> 01:10 RTS VCDUs 361-08:34 43 1 0 DSS43 lost tlm early at - Lost TF [50947] 3 U U 08:34. Fill period PB VCDUs commenced at 08:48. 361-18:38 14 1 0 2-way mode change that - Lost TF [50965] 4 PP No was not covered by a Priority VCDUs sequenced fill period 362-04:28 49 DR# 6 0 DSS49 was unable to - Lost TF [51031] 4 A Yes A00905 remain on point. The PB VCDUs 362-04:37 pointing assembly at the station required a - Lost TF [51033] 4 362-05:00 reset to restore PB VCDUs operability. 362-05:09 - Lost TF [51038] 4 PB VCDUs ->05:22 - Lost TFs [51040->51042] 12 PB VCDUs 362-06:12 43 DR# 2 0 DSS43 experienced an - Lost TFs [51054 & A Yes A00906 Hour-Angle encoder 51055] 7 PB VCDUs and -> 06:22 anomaly. The Master 1 Priority VCDU Equatorial Controller (MEC) was reset to restore operability. Time (GMT) DSS Reference RT Rcvd Events Comments Cause Array TFs Ops Lost from Related? PPT 362-08:00 43 DR# 1 0 Operations error caused - Lost TF [51076] 4 PD Yes A00907 by site Maintenance PB VCDUs while troubleshooting the persistent Hour-Angle anomaly. 363-02:35 43 DR# 1 0 While DSS43 was Lost TF [51163] 4 PB PD Yes A00909 swapping back to the S3 VCDUs maser (Ultracone) one TF was lost. Thw swap was made to return to S3 after an earlier swap to S1 due to a lightning strike at approx 362/22:53. 362-23:58 43 DR#A00910 2 1 Inclement weather, - Lost TF [51136] 4 W No thunderstorms. PB VCDUs **Recovered 363-00:39 from PPT** - Lost TF [51145] 4 PB VCDUs 363-08:48 43 DR# 2 0 Two TFs missed in the Lost TFs [51213 & U U A00911 BRC 20->8 at 08:49. 51214] 3 PB VCDUs 363-11:00 63 DR# 3 2 DSS63 had to reboot - Lost TFs [51217, H No L00794 GTC1 in order to allow 51218, & 51220] 5 for transmission of Priority VCDUs frames to JPL. **Recovered TFs [51217 & 51218] from PPT** 363-16:48 14 DR# 9 9 Channel one was unable - Lost TFs [51227 -> S No G01605 to output frames to 51235] 9 Priority and -> 20:45 JPL. Channel two also 19 PB VCDUs **All was unable to output nine TFs recovered any frames to JPL until from PPT** 20:45. Both FCDs were rebooted? To restore operability. 364-00:16 43 DR# 1 0 Unknown Lost TF [51269] 4 PB U U A00914 VCDUs 365-00:10 43 DR# 1 0 Unknown Lost TF [51397] 4PB U U A00915 VCDUs 365-23:35 43 DR# 27 ? - DGT predicts ended at Lost TFs S No A00917 365-23:45, prior to [51521->51547] 113 PB ->366-02:12 scheduled EOT & 7 Priority VCDUs. (366-09:40). The reason for the early end of predicts remains unknown. The NOPE and -DSN TPAP problem; DSN OSE restored the cannot generate DGT at DSS43 to predicts for DOY 366 operability by (leap year) manipulating the existing predicts to -FSR tapes have cover the scheduled arrived at JPL for support period. All TLM reprocessing with frames should be correct predicts recoverable from FSR tape. - DR# G01617 was opened to document the same event at DSS14. **Approx 27 frames lost in total. 4 frames of which will not recoverable from FSR tape** 001-23:13 49 DR# 1 0 DSS49 remained at stow Lost TF [51777] 3 PB W No A00926 due to high winds at and 1 Priority VCDUs. scheduled BOT (2245). One TF was lost when DSS49 was added to the array at approx 2313z. 002-23:41 43 2 0 FSC Phase error and low Lost TF [51916 & U Yes signal level noted 51928] 8 PB VCDUs 003-00:36 003-04:57 43 DR# 1 0 Severe weather, Lost TF [51968] 3PB & W No A00927 lightning strike 1 Priority VCDUs 003-08:35 43 1 0 - LOS before start of Lost TF [51995] 1 U U fill at EOT Priority VCDU - 20->8bps BRC Time (GMT) DSS Reference RT Rcvd Events Comments Cause Array TFs Ops Lost from Related? PPT 003-21:17 14 DR# 13 0 - The incorrect TSF was Lost TFs PD No G01642 utilized for the uplink [52019->52032] -> tune at 1645Z. Utlizing 004-01:00 a FRO in the FSR the station was able to maintain signal detect from 1914-2103z. 003-20:35 43 DR# 44 0 - DSS43 was unable to - Lost TFs PD No A00930 enter the necessary FRO [52017->52070] 9 ->004-02:06 into the FSR to achieve Priority, 104 PB, & DSS14 signal detect. an unknown amount of BDT RTS VCDUs. - DSS14 turned their txr off at 003-23:35. - This is the total amount of lost VCDUs from both DSS's 14 & 43. 004-22:33 43 DR# 4 0 - Unknown - Lost TFs [52163, SC No A00933 52170->52172] 2 PB & 12 BDT RTS VCDUs. - **Note** TFs [52156 & 52160] as well were lost due to an unknown reason, however, DSS14 recovered those two TFs in realtime. 005-22:41 43 DR# 1 0 - Unknown - Lost TF [52286] 4 SC No A00936 BDT RTS VCDUs - Missed BRC 40-60bps 005-23:00 43 3 0 Unknown -Lost TF [52291] 3 PB SC No VCDUs 005-23:23 005-23:27 006-18:48 14 DR# 16 0 DSS14 was taken to stow - Lost TFs W No G01655 due to high winds. [52394->52400] 8 ->21:30 Priority & 2 PB VCDUs 006-21:41 43 DR# 6 1 DSS43; itself at low - Lost TF [52405] 4 W No G01655 elev; was unable to PB VCDUs Recovered in 006-22:35 successfully process PPT the 60bps telemetry ->22:49 without DSS14's array - Lost TFs contribution. [52413->52416] 15 PB 006-23:08 VCDUs - Lost TF [52420] 4 PB VCDUs 007-11:46 63 1 0 Solar Conjunction SEC = - Lost TF [52510] 1 SC No 9.32 degrees Priority & 3 PB VCDUs 007-21:19 43 DR# 0 0 - BRC 32-40bps - Lost TFs [52530 & SC No A00948 52531] 007-21:27 Solar Conjunction SEC= 9.32 degrees Both of these frames were recovered in realtime from DSS14. 007-22:48 43 DR# 4 2 Solar Conjunction SEC= - Lost TF [52544] 4 SC No A00949 9.32 degrees PB VCDUs 007-22:52 - Lost TF [52545] 4 007-23:33 PB VCDUs 008-00:00 - Lost TF [52554] 4 PB VCDUs Recovered in PPT - Lost TF [52560] 4 PB VCDUs 008-11:42 63 DR# 5 0 The Subreflector - Lost TFs A No L00827 Controller (SRC) was [52636->52640] 13 PB ->13:58 red from BOT (0900z) & 3 Priority until 1326z when the station was on point. Time (GMT) DSS Reference RT Rcvd Events Comments Cause Array TFs Ops Lost from Related? PPT 008-22:32 43 DR# 30 0 Solar Conjunction SEC= - Lost TFs SC No A00951 8.53 - 7.74 degrees [52660->52677] 68 PB ->009-00:59 & 6 Priority VCDUs 009-01:54 - Lost TF [52682] 4 PB VCDUs 009-02:49 - Lost TFs [52686 & -> 03:16 52687] 8 PB VCDUs 009-03:30 -Lost TFs [52689 -> 52692] 14 PB & 2 ->04:24 Priority 009-05:05 VCDUs 009-05:33 - Lost TF [52696] 4 PB VCDUs ->06:13 -Lost TFs [52698 -> 009-06:41 52700] 12 PB VCDUs -Lost TF 52703] 4 PB VCDUs 009-22:08 43 DR# 3 0 Solar Conjunction SEC= Lost TFs [52736 -> SC No N42083 7.74 degrees 52738] 11 PB & 1 -> 22:49 Priority VCDUs Master DR 009-22:57 43 DR# 10 0 FSC failure. FSC Lost TFs [52740 -> S Yes A00957 rebooted to restore. 52749] 27 PB & 3 -> Priority VCDUs 010-00:22 010-04:46 43 DR# 11 0 - FSR1 failure. Tape Lost TFs [52770 -> H Yes A00958 drive replaced. 52780] 39 PB & 5 -> 07:36 Priority VCDUs S DR# - FSC failure. FSC A00959 rebooted to restore. 012-00:32 43 DR# 9 0 - Solar Conjuction SEC - Lost TF [52880] 4 SC No N42083 = 6.17 degrees PB VCDUs 012-02:49 - Playback paused at - Lost TFs [52890 & -> 03:16 03:31z 52891] 7 PB & 1 Priority VCDUs 012-03:43 - Slew to track center complete at 06:41z - Lost TFs [52894 & ->04:11 52895] 7 PB & 1 - Last PB VCDU at Priority 012-04:24 06:56.51z VCDUs 012-05:05 - Lost TF [52897] 4 -> 05:48 PB VCDUs - Lost TFs [52900->52902] 11PB & 1 Priority VCDUs 027-15:10 14 DR#G01743 10 0 - The station utilized - Lost TFs PD No the incorrect DGT [53559->53568] 12 PB -> 20:19 & 14 Priority configuration table, i.e.- suppressed VCDUs instead of residual carrier. 027-20:33 43 3 0 - DSS14 was removed - Lost TFs SC Yes from the array with [53571->53573] 11 PB -> 21:27 project approval in & 1 Priority order to improve array performance. VCDUs 028-22:05 43 DR# 5 1 - DSS43 unable to - Lost TFs [ 53631, SC Yes A01002 maintain solid lock on 53633->53638] 19 PB & -> 22:46 tlm due to stated 1 Priority VCDUs reasons: 1) scheduled BRC's, and 2) reasons - TF [53637] unknown. recovered in PPT - BRC's: 20->32 @ 21:30, and 32->40 @ 22:02z - DSS14 was removed from the array during this time period. 028-22:52 43 DR# 4 0 MEC anomaly. The - Lost TFs A No A01001 station reset to [53636->53641] 15 PB -> 23:20 restore. & 1 Priority VCDUs 029-20:46 14,43 DR# 9 0 - Unknown - Lost TFs [53699, SC Yes A01004 53705->53709, -> 22:40 - BRC 8-20bps @ 20:22; 53711->53713] missed at DSS14. 34 PB & 2 Priority - BRC 20-32bps @ 20:56; VCDUs missed at both DSS's Time (GMT) DSS Reference RT Rcvd Events Comments Cause Array TFs Ops Lost from Related? PPT 030-11:21 63 DR# 1 0 Unscheduled mode change - Lost TF [53774] 1 A No L00871 to htx tripping off a Priority VCDU. The OWLT earlier. rest of the Transfer Frame was PWS fill. 033-04:14 43 DR# 4 4 The FSC core task - Lost TFs S Yes A01008 halted. It was rebooted [54104->54107] 15 PB -> 04:42 to & 1 Priority VCDUs restore to operability. 034-02:57 43 DR# 8 8 GTC1 halted. It was - Lost TFs S No A01012 rebooted to restore to [54234->54237 & -> 04:05 54240->54243] operability. 31 PB & 1 Priority VCDUs 034-07:17 43 1 0 - DSS43 dropped tlm - Lost TF [54266] 2 U No lock before the start PB VCDUs of the scheduled fill period. - BRC 20-8bps 035-20:16 43 DR# 47 0 - Solar Scintillation - Lost TFs SS Yes A01016 and/or excessive phase [54475->54500, ->23:26 eror 54503->54522 & 54524] - DGT V6.3.7 169 PB & 5 Priority installation VCDUs - Pd/No measurement up to 5db below predicted at DSS's43 and 14. 036-19:51 14 1 0 - Unknown - Lost TF [54645] 3 U No PB & 1 Priority VCDUs - The array support began at 19:50z. 036- 21:14 43 DR# 13 0 - Solar Scintillation - Lost TFs [54657, SS Yes A01021 and/or excessive phase 54667->54669, 54671, -> 23:34z error 54672, 54674, 54675, 54680, 54683, 54684, 54690, 546693] 51 PB & 1 Priority VCDUs 037-19:36 14 1 0 - Unknown - Lost TF [54799] 4 U No Priority VCDUs - OTM-19 037-21:27 43 DR# 2 0 - Solar Scintillation - Lost TF [54819] 4 SS Yes A01024 and/or excessive phase PB VCDUs & 21:47 error - Lost TF [54825] 4 PB VCDUs 038-14:35 63,14 1 1 Unknown - Lost TF [54960] 2 U No PB & 2 Priority VCDUs 038-15:40 14 2 0 Unknown - Lost TFs [54963 & U No 54964] 4 PB VCDUs -> 17:22 038- 19:05 14, DR# 41 0 Solar Scintillation - Lost TFs [54968] SS Yes 43 G01777 and/or excessive phase (DSS14) & -> 22:42 error [54969->55008] DR# (DSS43) 151 PB & 9 A01026 Priority VCDUs 038- 22:45 43 DR# 4 0 Solar Scintillation - Lost TFs SS Yes A01026 and/or excessive phase [55010->55013] 16 PB -> 22:56 error VCDUs 039-20:40 43 DR# 1 0 Solar Scintillation - Lost TF [55156] 4 SS Yes A01028 and/or excessive phase PB VCDUs error 039- 21:03 49 DR# 32 0 - Bad time code - Lost TFs A Yes A01030 translator at DSS49. [55162->55193] 120 PB -> 22:56 & 8 Priority VCDUs 039- 23:00 49 DR# 4 0 - Bad time code - Lost TFs A Yes A01030 translator at DSS49 [55195->55198] 13 PB -> 23:10 & 3 Priority VCDUs 039- 23:22 49 DR# 24 0 - Bad time code - Lost TFs A Yes A01030 translator at DSS49 [55201->55224] 85 PB -> 040- & 11 Priority VCDUs 01:07 Time (GMT) DSS Reference RT Rcvd Events Comments Cause Array TFs Ops Lost from Related? PPT 040- 01:25 49 DR# 9 6 - Bad time code - Lost TFs A Yes A01030 translator at DSS49 [55228->55236] 34 PB -> 02:02 & 2 Priority VCDUs **Recovered TFs [55228,30,31,33->35] in PPT** 040- 02:24 49 DR# 8 4 - Bad time code - Lost TFs [55241 & A Yes A01030 translator at DSS49 55242] 2 PB & 6 -> 02:33 Priority VCDUs 02:38 - Lost TF [55244] 4 PB VCDUs 02:47 - Lost TFs -> 03:01 [55246->55248] 12 PB VCDUs 03:23 - Lost TF [55254] 4 04:14 PB VCDUs - Lost TF [55265] 4 PB VCDUs **Recovered TFs [55241,44,46->48] in PPT** 040- 19:17 14,43 1 0 - Unknown - Lost TF [55314] 3 U U PB 1 Priority VCDUs - BRC 8-40bps 040- 19:44 43 DR# 1 0 Unknown - Lost TF [55318] 4 U U A01031 PB VCDUs 040- 22:04 49 DR 66 4 -Bad time code - Lost TF [55345] 4 A Yes #A01032 translator at DSS49 PB VCDUs 22:18 - Lost TFs [ 55349 & -> 22:25 55350] 7 PB & 1 Priority VCDUs 22:28 - Lost TF [55352] 4 23:20 PB VCDUs 23:29 - Lost TF [55364] 4 PB VCDUs -> 041- 00:51 - Lost TFs [55366->55383] 53 PB 01:00 & 3 Priority VCDUs 01:09 - Lost TF [55386] 3 PB & 1 Priority VCDUs 01:18 - Lost TF [55388] 4 -> 01:27 PB VCDUs 01:36 - Lost TFs 55390 & 55391] 7 PB & 1 -> 01:45 Priority VCDUs 01:54 - Lost TFs [55394 & 55395] 8 PB VCDUs 02:13 - Lost TF [55398] 4 02:40 PB VCDUs -> 02:58 - Lost TF [55402] 4 PB VCDUs 03:03 - Lost TFs -> 03:12 [55408->55411] 15 PB 7 1 Priority VCDUs 03:16 - Lost TFs [55413 & 03:25 55414] 8 PB VCDUs -> 03:39 - Lost TF [55416] 4 PB VCDUs 03:44 - Lost TFs -> 04:02 [55418->55420] 12 PB VCDUs - Lost TFs [55422->55426] 20 PB VCDUs **Recovered TFs [55345, 55352, 55402, & 55416] In PPT ** 042-20:15 43 DR#N42272 4 4 - Loose connection on - Lost TFs F No the EFT lan in Bldg [55659->55662] 15 PB -> 20:57 230-B3. & 1 Priority VCDUs - The connection was tightened to restore connectivity. 042- 23:36 43 DR# 3 0 Inclement weather - - Lost TF [55690] 3 W No A01038 rain.Tlm was restored PB & 1 Priority VCDUs 23:45 after rain the abated. - Lost TFs [55692 & -> 23:54 55693] 8 PB VCDUs Time (GMT) DSS Reference RT Rcvd Events Comments Cause Array TFs Ops Lost from Related? PPT 043-14:54 14 DR# 1 0 DSS14 acquired the - Lost TF [55730] 3 PD No G01799 downlink signal late as Priority VCDUs the station was configured for the incorrect polarization- LCP vs. RCP. 044-19:19 43 DR# 7 0 - GTC1 was unable to - Lost TFs S No A01040 initerface with FSR1. [55995->56001] 27 PB -> 19:52 The station swapped to & 1 Priority VCDUs GTC1 ro restore operability. The station was not on point during the period 19:15-19:35z (approx). The frames will not recoverable. 046-18:10 14,43 DR# 7 0 - DSS14 went to stow at - Lost TFs (14) No G01810 18:18 to work on the [56453->56459] 3 A ->19:15 HTX. They were back at Priority VCDUs 19:15. (43) U - DSS43 had BOT at 18:55 and did not achieve FSR signal detect until 19:11. 047- 02:12 43 2 0 1-way after unexpected - Lost TFs [56580 & UPA No uplink earlier in the 56581] 8 PB VCDUs -> 02:19 support. The uplink was required due to a bad uplink over DSS14. The stations left the diplexer out during the uplink. 047-03:58 43 1 0 Unknown - Lost TF [56611] 3 U U PB & 1 Priority VCDUs 047-05:18 43 1 0 Unknown - Lost TF [56633] 3 U U PB & 1 Priority VCDUs 047- 14:41 14 DR# 6 2 The HTX tripped off - Lost TFs A No G01815 resulting in [56664->56669] 5 PB & -> 16:42 unscheduled mode 3 Priority VCDUs changes. ***TFs [56664 & 56665] recovered in PPT*** 048-00:11 43 3 0 No fill scheduled - Lost TFs PP No during a mode change [56770->56772] 12 PB -> 00:21 following a scheduled VCDUs uplink. 048- 06:53 43 1 0 Unknown - Lost TF [56867] 3 U U PB & 1 Priority VCDUs 048-08:07 END OF PLAYBACK FROM E4 SEQUENCE TOTAL 671 68 Total Frames (including 7897 Fill): PP - Procedural (Project) Transfer Frames #s lost in brackets [.........] PD - Procedural (DSN) F - Facility problem (e.g. power failure) H - DGT H/W Related/Failure U - Unknown A - Antenna Problem W - Weather (e.g. Parkes stow due to high winds) S - DGT S/W Related; Error or newly understood idiosyncracy/workaround/constraint SA - Spacecraft anomaly and recovery actions UPA - Unscheduled project action SPA - Scheduled Project action SS - Solar Scintillation