See https://cxc.harvard.edu/mta/SOT_reports/sot-shift.html
Shift L9141.
Start at 213:13:00 GMT
PLAN
----
Finish: Obsid: 27209 SI: ACIS-I (27 ksec) Target: zwcl 1856.8+661
Then:
2024:213:16:48:21 Obsid: 26930 SI: ACIS-I (17 ksec) Target: A2384
2024:213:22:13:33 Obsid: 26933 SI: ACIS-I (33 ksec) Target: zwcl 1856.8+661
2024:214:08:05:31 Obsid: 29493 SI: ACIS-I (17 ksec) Target: A2384
NOTES/ISSUES/PROBLEMS
---------------------
From the 9am status meeting:
3 Supports Completed in the last 24 hours (Total time: 6.9 hours)
4 SSR dumps
CAP's:
- 1372B, 213/0515z | Swap Prime SSR to Backup
Every 6 months the prime SSR will be switched to the backup position. This is
being done to maintain health and trending data on both SSRs for the remainder
of the mission. The swap will typically be aligned with the bi-annual report
periods: Feb – July = SSR-A prime Aug – Jan = SSR-B prime However, operational
conditions may dictate SSR swaps at other times as well.
DSN DR:
- G124604, DSS-24, Station unable to lock Reed-Solomon at BOT, Station
attempted using another DCC (1) and the same issue presented. The station was
able to lock up about 10 minutes into the support with the original DCC (11)
Radiation:
Space weather and the ACE rates have been settling down. Another near X class flare
which produced a CME was observed yesterday near the East limb. The CME appears
to be directed away from us so no mission impact is expected. Solar activity is
expected to be moderate with a chance for X-class flares on days one, two, and
three (31 Jul, 01 Aug, 02 Aug).
MP:
Aug0524 loads are in work.
ENG:
A telemetry corruption event was observed while turning on SSR-B. Checks will
be performed to see if this was related to SSR-B or if it was a coincidental
single upset event.
GOT:
No issues.
Quick look data:
----------------
OBSID Target Instr Grat
----- ------ ----- ----
26614 PSR J1539-5626 ACIS-I NONE
27092 1E 161348-5055.1 ACIS-I NONE
29492 PSR J1539-5626 ACIS-I NONE
Next Comms:
-----------
Support (GMT) BOT EOT Station Site Track time (local)
--------------- ---- ---- --------- --------- -------------------------
214/0200-0515 0300 0500 DSS-26 GOLDSTONE 2300-0100 EDT, Wed 31 Jul
214/0915-1130 1015 1115 DSS-24 GOLDSTONE 0615-0715 EDT, Thu 1 Aug
214/1645-1900 1745 1845 DSS-56 MADRID 1345-1445 EDT, Thu 1 Aug
SNAPSHOT summary:
-----------------
UTC 2024:213:05:55:02 (Jul31) f_ACE 1.07e+03 F_CRM 0.00e+00 Kp 1.0 R km 101639A
OBT 2024:213:05:52:45 CTUVCDU 10964735 OBC s/w NRML FMT1_NORM CPEstat NORM
OBT 838792365.43 ONLVCDU 10964728 OBC Errs 0
OBSID 26578 EPState SUN
SIM TTpos -50504 HETG Angle 77.96 PCADMODE NPNT RA 287.964 Bus V 27.26
SIM FApos -715 LETG Angle 76.09 PCONTROL NPNT Dec 4.994 Bus I 21.60
AOFSTAR GUID Roll 223.275
ACA Object FFFSSSSS Dither ENAB HRC-I HV ON
ACA ImFunc TTTTTTTT Dith Yang 12.96 Yaw Rate 0.00 HRC-S HV OFF
ACA CCD Temp -5.1 Dith Zang -18.82 Pitch Rate 0.44 SHLD HV 8.0
ACA Int Time 1.698 Roll Rate -0.11 EVT RT 3824
AOACSTAT OK FSS SunBeta NSUN SHLD RT 5609
FSS Alfa -42.40 Batt 1 SOC 100.00%
Avg HRMA Temp 74.00 FSS Beta -50.01 Batt 2 SOC 100.00% A -15 V -14.45
Avg OBA Temp 87.24 SA Resolv 148.18 Batt 3 SOC 100.00% A +15 V 14.53
OBA Tavg Fault NFLT SA Sun Pres ILLM A +5 V 4.84
OBA Trng Fault NFLT +Y SA Amps 11.02 A +24 V 0.00
HRMA power 0.00 SCS 128 ACT -Y SA Amps 10.63
OBA power 35.10 SCS 129 INAC +Y SA Temp 110.82
SCS 130 ACT -Y SA Temp 109.89 ACIS Stat7-0 6
Roll Mom. 3.910 SCS 131 ACT Cold Rad -120.
Pitch Mom. 3.443 SCS 132 INAC Ephin Temp 0.0000 Warm Rad -77.1
Yaw Mom. 3.349 SCS 133 ACT EIO Temp 0.0000 RadMon ENAB
PMTANKP 137.343 SCS 107 INAC EPH temp 152.81
UpLCmdAcc 44746
IRU2G2 curr 110.40 M Unload MON Cmd Rej A 248
IRU2G1 curr 98.40 Roll Bias 1.5789 TSC Move STOP
Prop. line 03 148.52 Pitch Bias -3.7069 FA Move STOP CTX A PWR 36.38
Prop. line 04 129.74 Yaw Bias -1.7574 OTG Move DISA CTX A Volts 3.52
UTC 2024:213:12:56:02 (Jul31) f_ACE 1.57e+03 F_CRM 0.00e+00 Kp 0.3 R km 130883A
Currently scheduled FPSI, OTG : ACIS-I NONE
Estimated Kp : 0.3
ACE EPAM P3 Proton Flux (p/cm^2-s-sr-MeV) : 1.57e+03
GOES-R P4 flux, in RADMON P4GM units : 0.039
GOES-R P7 flux, in RADMON P41GM units : 0.014
GOES-R E > 2.0 MeV flux (p/cm^2-s-sr) : 4.0
Orbit Start Time : 0.006
Geocentric Distance (km), Orbit Leg : 130780 A
CRM Region : 3 (Magnetosphere)
External Proton Flux (p/cm^2-s-sr-MeV) : 9.4282e+02
Attenuated Proton Flux (p/cm^2-s-sr-MeV) : 9.4282e+02
External Proton Orbital Fluence (p/cm^2-sr-MeV) : 2.8381e+05
Attenuated Proton Orbital Fluence (p/cm^2-sr-MeV) : 2.8381e+05