See https://cxc.harvard.edu/mta/SOT_reports/sot-shift.html
Shift L7917.
Start at 084:14:00 GMT
PLAN
----
Finish: Obsid: 24797 SI: ACIS-S (21 ksec) Target: PKS 1136-135
Then:
2021:084:18:18:11 Grating: LETG
2021:084:18:47:52 Obsid: 23533 SI: HRC-S (29 ksec) Target: SNR 1987A
2021:085:02:51:47 Grating: NONE
2021:085:03:24:28 Obsid: 24800 SI: ACIS-S (31 ksec) Target: PKS 1136-135
2021:085:12:49:37 Grating: LETG
2021:085:13:43:35 Obsid: 24994 SI: HRC-S (30 ksec) Target: H1821+643
NOTES/ISSUES/PROBLEMS
---------------------
From the 9am status meeting:
3 Supports completed in the last 24 hours (total time: 6.9 hours)
3 SSR dumps
3 CAPs:
- 1561, 083/1748z, PR-487 SCS 89 Patch Uplink, to include updated
values for HRC-I high voltage ramp-up steps
- 750 AG, 084/0254z, Low Rate Dump of the On-line OBC
Checksummed Memory (XSUM_1)
- 750 AH, 084/1122z, Low Rate Dump of the On-line OBC
Checksummed Memory (XSUM_2)
Radiation:
Solar activity is expected to be very low with a slight chance
for a C-class flare on days one, two, and three (25 Mar, 26
Mar, 27 Mar).
MP:
Continuing to work on the Mar2921 loads. Decision on the TOO
in progress should be made this afternoon.
Eng:
No issues.
GOT:
No issues.
Quick look data:
----------------
OBSID Target Instr Grat
----- ------ ----- ----
22948 H1821+643 HRC-S LETG
Next Comms:
-----------
Support (GMT) BOT EOT Station Site Track time (local)
--------------- ---- ---- --------- --------- -------------------------
084/1000-1215 1100 1200 DSS-24 GOLDSTONE 0700-0800 EDT, Thu 25 Mar
084/1815-2030 1915 2015 DSS-26 GOLDSTONE 1515-1615 EDT, Thu 25 Mar
085/0130-0345 0230 0330 DSS-56 MADRID 2230-2330 EDT, Thu 25 Mar
085/1000-1215 1100 1200 DSS-24 GOLDSTONE 0700-0800 EDT, Fri 26 Mar
085/2030-2245 2130 2230 DSS-26 GOLDSTONE 1730-1830 EDT, Fri 26 Mar
SNAPSHOT summary:
----------------
UTC 2021:084:11:59:01 (Mar25) f_ACE 2.02e+01 F_CRM 1.00e+00 Kp 1.7 R km 141501A
OBT 2021:084:11:56:08 CTUVCDU 1772671 OBC s/w NRML FMT1_NORM CPEstat NORM
OBT 733060568.97 ONLVCDU 1772664 OBC Errs 0
OBSID 22960 EPState SUN
SIM TTpos -99616 HETG Angle 77.96 PCADMODE NPNT RA 125.470 Bus V 28.36
SIM FApos -990 LETG Angle 4.09 PCONTROL NPNT Dec -42.994 Bus I 22.11
AOFSTAR GUID Roll 291.291
ACA Object FFFSSSSS Dither ENAB HRC-I HV OFF
ACA ImFunc TTTTTTTT Dith Yang 18.81 Yaw Rate 0.10 HRC-S HV ON
ACA CCD Temp -10.4 Dith Zang -6.60 Pitch Rate 0.12 SHLD HV 8.0
ACA Int Time 1.698 Roll Rate 0.07 EVT RT 255
AOACSTAT OK FSS SunBeta SUN SHLD RT 4589
FSS Alfa -0.57 Batt 1 SOC 100.00%
Avg HRMA Temp 72.25 FSS Beta -23.87 Batt 2 SOC 100.00% ACIS Stat7-0 66
Avg OBA Temp 64.19 SA Resolv 113.79 Batt 3 SOC 100.00% Cold Rad -123.1
OBA Tavg Fault NFLT SA Sun Pres ILLM Warm Rad -79.6
OBA Trng Fault NFLT +Y SA Amps 11.21 RadMon ENAB
HRMA power 62.90 SCS 128 ACT -Y SA Amps 10.83
OBA power 8.10 SCS 129 ACT +Y SA Temp 115.49
SCS 130 INAC -Y SA Temp 115.12
Roll Mom. -1.625 SCS 131 ACT
Pitch Mom. -5.925 SCS 132 ACT Ephin Temp 0.0000 UpLCmdAcc 5443
Yaw Mom. 8.747 SCS 133 INAC EIO Temp 0.0000 Cmd Rej A 237
PMTANKP 132.547 SCS 107 INAC EPH temp 107.86
IRU2G2 curr 108.00 M Unload MON
IRU2G1 curr 91.20 Roll Bias 0.5868 TSC Move STOP
Prop. line 03 140.72 Pitch Bias -2.6287 CTX B PWR 36.69 FA Move STOP
Prop. line 04 111.86 Yaw Bias -1.5520 CTX B Volts 3.54 OTG Move DISA
UTC 2021:084:12:59:02 (Mar25) f_ACE 1.88e+01 F_CRM 1.00e+00 Kp 1.7 R km 142885A
Currently scheduled FPSI, OTG : ACIS-S NONE
Estimated Kp : 1.7
ACE EPAM P3 Proton Flux (p/cm^2-s-sr-MeV) : 1.88e+01
GOES-R P4 flux, in RADMON P4GM units : 0.059
GOES-R P7 flux, in RADMON P41GM units : 0.020
GOES-R E > 2.0 MeV flux (p/cm^2-s-sr) : 423.0
Orbit Start Time : 2021:083:11:44:01
Geocentric Distance (km), Orbit Leg : 142885 A
CRM Region : 2 (Magnetosheath)
External Proton Flux (p/cm^2-s-sr-MeV) : 1.5798e+02
Attenuated Proton Flux (p/cm^2-s-sr-MeV) : 1.5798e+02
External Proton Orbital Fluence (p/cm^2-sr-MeV) : 1.2987e+08
Attenuated Proton Orbital Fluence (p/cm^2-sr-MeV) : 5.7707e+07