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ISDCCDCI
INTEGRAL Science Data Centre

ISDC END OF REVOLUTION REPORT (NRT)
REVOLUTION 1577 - Report of August 20, 2015


 
 Perigee Passage at start : 2015-08-17T18:57:21
 Perigee Passage at end   : 2015-08-20T10:46:50
 Radiation Belt exit      : 50817 km (ijd 5707.9488)
 Radiation Belt entrance  : 33911 km (ijd 5710.3627)
 
 Operations Coordinator   : Carlo Ferrigno
 Pipeline Operator        : Ph.M.
 Scientist on Duty        : Dominique Eckert

 1. Planning summary
 ===================

 1.1 General remarks

 a) 2015-08-18T01:33: Spacecraft anomaly, PRU anomalous switch-on by SEU. AOCS disabled in the timeline.
    A manual slew and update from PID #1577005 to #1577009 was performed by the SPACON to re-join 
    the timeline and the AOCS was then re-enabled in the timeline at 03:50z.
    This event resulted in the loss of 5 science pointings, since it interrupted PID #1577005 and 
    the re-join occurred during the time PID #1577009 should have been executing.
 
 1.2 Pointings summary

   Remarks: Only Science Windows (ScWs) of type 'pointing' are considered.
 - Exposures info from POD version 1. Pointings info from TSF version 2. 
 - Durations in exec/planned format; data gaps and bad time intervals not excluded from total time.
 - Deviations: only unexpected deviations >30 secs for pointings assigned to an exposure reported;
   expected deviations (first & last pointings of an exposure longer than planned) not reported. 
  • Exposure 15770001: 'Crab', 5x5 (25x1800s) 25 pointings: 15770004 -> 15770028, 44114s/45000s (-14m45s) Deviations: 15770005 1849/1800s: see 1.1.a) 15770006 1921/1800s: see 1.1.a) 15770007 1920/1800s: see 1.1.a) 15770008 1920/1800s: see 1.1.a) 15770009 555/1800s: see 1.1.a)
  • Exposure 15770002: 'Orion', 5x5 (13x3334s) 13 pointings: 15770030 -> 15770042, 44816s/43342s (+24m33s)
  • Exposure 15770003: 'Orion', 5x5 (1x3334s) 1 pointing: 15770043, 3332s/3334s (-1s)
  • Exposure 15770004: 'Orion', 5x5 (25x3334s) 25 pointings: 15770044 -> 15770068, 86864s/83350s (+58m34s)
  • Pointings with no assigned Exposure 6 pointings: 15770001, 0002, 0003, 0029, 0069, 0070, 6628s/3110s (+58m38s)
2. NRT Data processing ====================== 2.1 Telemetry * Start reception: 2015-08-17T22:16:24 End reception: 2015-08-20T06:38:09 * TM gaps of more than 30 seconds: 2015-08-18T23:58:09 2015-08-19T00:44:11 2015-08-19T04:29:05 - 2015-08-19T04:34:15 * Frames missed: 2015-08-18T23:58:10 883 frames missed (1310719941 to 1310720823) 2015-08-19T00:44:12 884 frames missed (1310764132 to 1310765015) * ERT not in sync with UTC: - * Statistics: Mean Rate: 15.96 frames/sec (mean) Frames: 3237863 total Packets: 4430541 total : 0 missed : 10142 missed : 2207969 TM : 4415938 TM : 1029894 idle : 0 tcmd : 0 invalid : 14603 time : 0 idle : 0 invalid * Errors: NCTRSFRAME: invalid quality = 256 (should be 0 or 1): 2015-08-19T06:37:30 2.2 Auxiliary files summary POD OPP TSF PAF OLF ASF AHF THF ORB REVNO ------------------------------------------------------------- 1 1 1 1 64 70 1 58 1 1 2.3 Pre-processing * Frequent errors for days 2015-08-18, 2015-08-19, 2015-08-20, respectively: 0 0 0 "Histogram rejected" 0 0 0 "OBT found too much higher" 6 0 0 "packet(s) of the Histogram are discarded" 2 0 0 "Can not store the Histogram" 0 0 0 "SpiSpectrum, decompression failed" 0 0 0 "SpiSpectrumParser, Failure" 0 0 0 "newObt-prevObt, packet is too old" 2.4 OPUS Pipelines processing * REV: completed | errors * INPUT/SCW: completed | errors ------------------------------- ---------------------------- IREM : 57 | 0 141 | 0 ISGRI_cal : 21 | 0 ISGRI_noise: 113 | 0 IBIS_veto : 19 | 0 * QLA completed | errors PICsIT_cal : 0 | 0 ----------------------------- JMX : 206 | 0 IBIS : 72 | 0 ilt : 1 | 0 JEMX-1 : " | 0 Archiving : 1 | 0 JEMX-2 : " | 0 2.5 ISGRI context table 2015-08-19T23:36: IIMG_SDCMOC_D20150818002449_00001.INT sent to MOC 3. Alerts ========= 3.1 All alerts except OOLs and missing scientific data * Level 2: 603 The pointing hasn't increased by one. From 5 to 9501 File: 1577_0008_ASF Convert attitude RRRR=1577 ROW=8. Missing pointing ? 603 The pointing hasn't increased by one. From 5 to 10 AHF file: 1577_0001_AHF Convert attitude RRRR=1577 ROW=251. Missing pointing ? -> see 1.1.a) * Level 1: 604 Exposure time is 1920 sec. instead of 1800 sec. Pointing ID (BCPPID): 15770006, 15770007, 15770008 604 Exposure time is 551 sec. instead of 1800 sec. Pointing ID (BCPPID): 15770009 -> see 1.1.a) 3.2 Parameter out of limits - 3.3 Missing scientific data IBIS: ----- ScW: 157700090010,157700100010 These data structures are missing: PICS-SIMH-RAW (or ALL) for mode Observation standard (41) PICS-SISH-RAW (or ALL) for mode Observation standard (41) 4. Instruments checks (IOSM) ===================== Nothing special 5. Science (DE) ========== 5.1 Summary a) Planned observations Last POD file: /isdc/nrt2/ops/aux/adp/1577.000/pod_1577_0001.fits Received at : 3 Aug 13:32 i EXP_ID OBS_ID SRC_NAME POINT_NUM POINT_LEN 1 15770001 12200110005 Crab 25 1800 2 15770002 12200060004 Orion 13 3334 3 15770003 12200060004 Orion 1 3334 4 15770004 12200060004 Orion 25 3334 b) Solar activity & miscellaneous Low 5.2 IBAS a) GRB in ISGRI FOV: No b) GRB in SPI-ACS: 2015-08-19T10:33:19 (AUTO): GRB 150819B, also detected by Konus-Wind (Golenetskii et al. 2015, GCN 18176) and Fermi/GBM (Yu & Burns 2015, GCN 18178). Two bright, short peaks visible in SPI-ACS lightcurve. The brighter one at T0 with a duration of ~0.1s, and the second one at T0+0.7s with a duration of ~0.2s. c) Other IBAS alerts: No 5.3 TOOs: No 6. Anomalies report: ==================== PRU anomalous switch-on, see 1.1.a)