ISDC END OF REVOLUTION REPORT (NRT)
REVOLUTION 2681 - Report of September 04, 2023
Perigee Passage at start : 2023-08-31T23:32:31
Perigee Passage at end : 2023-09-03T15:23:42
Radiation Belt exit : 28081 km (ijd 8644.0432)
Radiation Belt entrance : 53896 km (ijd 8646.4860)
1. Planning summary
===================
1.1 General remarks
a) Numerous alerts 605 related to instruments: IBIS, JEM-X 1, JEM-X 2, OMC, SPI.
b) 2023-09-01T07:27: Pointing 05 missed.
1.2 Pointings summary
Remarks: Exposure info from POD. Pointing info from TSF.
- 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 26810001: 'Orion_1', 5x5 (2x3334s)
2 pointings: 26810002 -> 26810003, 6671s/6668s (+2s)
- Exposure 26810002: 'Orion_1', 5x5 (4x3334s)
4 pointings: 26810004 -> 26810007, 12744s/13336s (-9m52s)
Deviations:
26810005 93/3334s: see 1.1.b)
- Exposure 26810003: 'Swift J1727.8-1613', 5x5 (26x3400s)
26 pointings: 26810011 -> 26810036, 88383s/88400s (-16s)
- Exposure 26810004: 'Swift J1727.8-1613', 5x5 (4x3400s)
4 pointings: 26810037 -> 26810040, 15029s/13600s (+23m48s)
- Exposure 26810005: 'Orion_1', 5x5 (15x3334s)
15 pointings: 26810044 -> 26810058, 60649s/50010s (+2h57m19s)
- Pointings with no assigned Exposure
9 pointings: 26810001, 0008, 0009, 0010, 0041, 0042, 0043, 0059,
69992096
19500s/4976s (+4h02m03s)
2. NRT Data processing
======================
2.1 Telemetry
* TM gaps of more than 30 seconds:
2023-09-01T02:46:31
2023-09-01T02:47:47
2023-09-02T13:34:01
* Frames missed:
2023-09-01T02:46:31 915 frames missed (1034064534 to 1034065448)
2023-09-01T02:47:47 616 frames missed (1034066018 to 1034066633)
* Statistics: Mean Rate: 15.99 frames/sec (mean)
Frames: 3524312 total
: 0 missed
: 2526156 TM
: 998156 idle
: 0 invalid
Packets: 5067559 total
: 2502 missed
: 5052312 TM
: 0 tcmd
: 15247 time
: 0 idle
: 0 invalid
* No error
2.2 Auxiliary files
OLF: 64
ASF: 61
THF: 62
2.3 Pre-processing / OPUS pipelines
Nothing special
* No error
2.4 ISGRI context table
2023-09-03T03:27: IIMG_SDCMOC_D20230901041159_00001.INT
2023-09-03T07:40: IIMG_SDCMOC_D20230901041159_00002.INT
2nd version provided by IRFU/SAp, Saclay (F)
3. Alerts
=========
3.1 All alerts except OOLs and missing scientific data
* Level 1:
604 Exposure time is 92 sec. instead of 3334 sec.
Pointing ID (BCPPID): 26810005
-> see 1.1.b)
3.2 Parameter out of limits
IBIS:
-----
Due to Solar minimum, the IBIS veto limits are not appropriate
resulting in too many alerts
ScWs: 268100020010 - 268100580010
V1S_MBOT_MCOUNT
V1S_MLAT_MCOUNT
ScWs: 268100020010 - 268100580010
IOE_MDOS_MMCE4,6
605 The mode differ for n sec. from the planning
Numerous alerts for ScWs: 266100020010 - 266100580010
Affected instruments: IBIS, JEM-X 1, JEM-X 2, OMC, SPI
-> see 1.1.a)
ScW: 268100050021
P0S_MM[1-8]VTC
3.3 Missing scientific data (taken from alert 3050) -
4. Instruments checks (IOSM)
=====================
Nothing special
5. Science
==========
5.1 Summary
a) Planned observations
Last POD file: /isdc/nrt2/ops/aux/adp/2681.000/pod_2681_0005.fits
Received at : Aug 31. 08:00
i EXP_ID OBS_ID SRC_NAME POINT_NUM POINT_LEN
1 26810001 19200080006 Orion_1 2 3334
2 26810002 19200080006 Orion_1 4 3334
3 26810003 20400010001 Swift J1727.8-1613 26 3400
4 26810004 20400010001 Swift J1727.8-1613 4 3400
5 26810005 19200080006 Orion_1 15 3334
b) Solar activity & miscellaneous
Calm
5.2 IBAS: no more reported here
5.3 TOOs: No
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