See https://cxc.harvard.edu/mta/SOT_reports/sot-shift.html
Shift L7901.
Start at 068:14:00 GMT
PLAN
----
Finish: 2021:068:07:58:33 Obsid: 24274 SI: ACIS-S (25 ksec) Target: SNR
0519-69.0
Then:
2021:068:15:25:26 Obsid: 23413 SI: ACIS-S (10 ksec) Target: 2MASS J12353357
2021:068:18:44:16 Obsid: 24581 SI: ACIS-I (32 ksec) Target: E0102-72.3
2021:069:04:06:21 Obsid: 24986 SI: ACIS-S (10 ksec) Target: Swift J130456-4
2021:069:07:21:52 Obsid: 24379 SI: ACIS-S (32 ksec) Target: NGC 3081
NOTES/ISSUES/PROBLEMS
---------------------
From the 9am status meeting:
4 Supports Completed in the last 24 hours (Total time: 9.2 hours)
4 SSR dumps
Loads good through: 2021:074:08:35:33.000
CAP's / Procedures Run:
CAP # | Time | Title / Description / Notes
[1565] | 067/1649z | Thermal Primary Operational Bus 6 Extended Turn-off
Zone 50 of the OBA contains a stuck-on heater which is adding extra heat to
the OBA and possibly ACIS FP. This CAP disables power to Thermal Primary
Operational Bus 6 to turn off the Zone 50 stuck-on heater. This CAP will shut
off power to HRMA Primary Operational Zone 29, and OBA Primary Operational
Zones 35, 42, 44, 46, 48, 50, and Aft Bulkhead Primary Operational Zone 54.
The CAP will also disable commanding to Thermal Primary Operational Bus 5,
HRMA Primary Operational Zones 27 & 28, and OBA Primary Operational Zones 43,
45, 47, 49, 52, and Aft Bulkhead Primary Operational Zone 53. This CAP will be
run in two parts, over separate DSN comms, to assess the thermal
benefit/impact with Bus 5&6 heaters off to determine if a permanent disable of
Primary Operational Bus 6 (and Bus 5 commanding) is appropriate.
Radiation:
Solar activity is expected to be very low on days one, two, and three (09 Mar,
10 Mar, 11 Mar).
MP:
Replan Mar0921a was approved last night.
Mar1521 in work.
ENG:
No issues.
GOT:
No issues.
Quick look data:
----------------
OBSID Target Instr Grat
----- ------ ----- ----
23382 TW Hya HRC-S LETG
24721 J090203.91+061849.6 ACIS-S NONE
Next Comms:
-----------
Support (GMT) BOT EOT Station Site Track time (local)
--------------- ---- ---- --------- --------- -------------------------
068/1050-1305 1150 1250 DSS-24 GOLDSTONE 0650-0750 EST, Tue 9 Mar
068/2005-2215 2105 2200 DSS-36 CANBERRA 1605-1700 EST, Tue 9 Mar
069/0230-0445 0330 0430 DSS-54 MADRID 2230-2330 EST, Tue 9 Mar
069/1015-1230 1115 1215 DSS-24 GOLDSTONE 0615-0715 EST, Wed 10 Mar
069/1530-1740 1630 1725 DSS-56 MADRID 1130-1225 EST, Wed 10 Mar
SNAPSHOT summary:
-----------------
UTC 2021:068:12:50:01 (Mar 9) f_ACE 2.09e+01 F_CRM 1.00e+00 Kp 0.7 R km 137336A
OBT 2021:068:12:47:10 CTUVCDU 13167103 OBC s/w NRML FMT2_NORM CPEstat NORM
OBT 731681230.47 ONLVCDU 13167096 OBC Errs 0
OBSID 24274 EPState SUN
SIM TTpos 75623 HETG Angle 77.96 PCADMODE NPNT RA 79.861 Bus V 28.36
SIM FApos -467 LETG Angle 76.46 PCONTROL NPNT Dec -69.010 Bus I 21.86
AOFSTAR GUID Roll 271.832
ACA Object FFFSSSSS Dither ENAB HRC-I HV OFF
ACA ImFunc TTTTTTTT Dith Yang -5.18 Yaw Rate -0.27 HRC-S HV ON
ACA CCD Temp -10.4 Dith Zang 4.20 Pitch Rate -0.06 SHLD HV 8.0
ACA Int Time 1.698 Roll Rate -0.23 EVT RT 255
AOACSTAT OK FSS SunBeta SUN SHLD RT 4844
FSS Alfa -0.52 Batt 1 SOC 100.00%
Avg HRMA Temp 71.65 FSS Beta 3.77 Batt 2 SOC 100.00% ACIS Stat7-0 64
Avg OBA Temp 63.72 SA Resolv 85.96 Batt 3 SOC 100.00% Cold Rad -125.5
OBA Tavg Fault NFLT SA Sun Pres ILLM Warm Rad -82.0
OBA Trng Fault NFLT +Y SA Amps 10.83 RadMon ENAB
HRMA power 33.00 SCS 128 ACT -Y SA Amps 10.63
OBA power 35.10 SCS 129 ACT +Y SA Temp 116.22
SCS 130 DISA -Y SA Temp 115.85
Roll Mom. -6.338 SCS 131 ACT
Pitch Mom. -3.375 SCS 132 ACT Ephin Temp 0.0000 UpLCmdAcc 45800
Yaw Mom. 0.825 SCS 133 DISA EIO Temp 0.0000 Cmd Rej A 224
PMTANKP 132.547 SCS 107 INAC EPH temp 133.94
IRU2G2 curr 115.20 M Unload MON
IRU2G1 curr 93.60 Roll Bias 0.5683 TSC Move STOP
Prop. line 03 155.32 Pitch Bias -2.6156 CTX A PWR 36.38 FA Move STOP
Prop. line 04 121.54 Yaw Bias -1.5436 CTX A Volts 3.52 OTG Move DISA
UTC 2021:068:13:54:02 (Mar 9) f_ACE 2.17e+01 F_CRM 1.00e+00 Kp 0.7 R km 139334A
Currently scheduled FPSI, OTG : ACIS-S NONE
Estimated Kp : 0.7
ACE EPAM P3 Proton Flux (p/cm^2-s-sr-MeV) : 2.17e+01
GOES-R P4 flux, in RADMON P4GM units : 0.079
GOES-R P7 flux, in RADMON P41GM units : 0.018
GOES-R E > 2.0 MeV flux (p/cm^2-s-sr) : 919.0
Orbit Start Time : 2021:067:14:54:01
Geocentric Distance (km), Orbit Leg : 139187 A
CRM Region : 1 (Solar_Wind)
External Proton Flux (p/cm^2-s-sr-MeV) : 2.1700e+01
Attenuated Proton Flux (p/cm^2-s-sr-MeV) : 2.1700e+01
External Proton Orbital Fluence (p/cm^2-sr-MeV) : 1.8291e+08
Attenuated Proton Orbital Fluence (p/cm^2-sr-MeV) : 2.9643e+07
Due to transition to GOES-16, what used to be P2 is now P4 and what used to be P5 is now P7
This message will dissappear in 01/31/2021