See https://cxc.harvard.edu/mta/SOT_reports/sot-shift.html Shift L9695. Start at 036:13:57 GMT PLAN ---- Finish: Obsid: 30316 SI: ACIS-I (45 ksec) Target: Perseus cluster Then: 2026:036:20:16:21 Grating: HETG 2026:036:20:18:47 RADMON Disable 2026:037:08:19:33 Grating: NONE 2026:037:08:32:46 RADMON Enable 2026:037:08:53:40 Obsid: 32144 SI: ACIS-S (16 ksec) Target: ZwCl 0857.9+210 NOTES/ISSUES/PROBLEMS --------------------- From the 9am status meeting: 2 Supports Completed in the last 24 hours (Total time: 4.5 hours) 2 SSR dumps Loads good through: 2026:040:02:00:02.000 CAP's / Procedures Run: CAP # | Time | Title / Description / Notes [750AT](/occweb/web/webapps/ifot/ifot.php?r=flightops&t=properties&format=sheet&id=998458) | 036/1219z | Low-Rate Dump of the Offline OBC (XSUM_2) Perform on-orbit OBC checksummed memory dump of OFLN OBC (0x1000 to 0x1FFFF) Radiation (Solar Activity): Solar activity is expected to be moderate with a chance for X-class flares on days one, two, and three (05 Feb, 06 Feb, 07 Feb). Radiation (Geophysical Activity): The geomagnetic field is expected to be at quiet to minor storm levels on day one (05 Feb), unsettled to minor storm levels on day two (06 Feb) and quiet to active levels on day three (07 Feb). Protons have a chance of crossing threshold on days one, two, and three (05 Feb, 06 Feb, 07 Feb). MP: FEB0626A command loads passed review. ENG: No issues. GOT: No issues. Quick look data: ---------------- OBSID Target Instr Grat ----- ------ ----- ---- 32138 SDSSJ085640.78+105755.8 ACIS-S NONE 30232 [vD2023]1 ACIS-I NONE 31049 Orion Nebula snapshot 5 ACIS-I NONE 30314 Perseus cluster ACIS-I NONE 31050 Orion Nebula snapshot 6 ACIS-I NONE 32142 SNR G1.9+0.3 ACIS-S NONE 31048 Orion Nebula snapshot 4 ACIS-I NONE 31444 ESO324-008 ACIS-S NONE Next Comms: ----------- Support (GMT) BOT EOT Station Site Track time (local) --------------- ---- ---- --------- --------- ------------------------- 036/1110-1340 1155 1325 DSS-24 GOLDSTONE 0655-0825 EST, Thu 5 Feb 037/0315-0515 0400 0500 DSS-26 GOLDSTONE 2300-0000 EST, Thu 5 Feb 037/1250-1520 1335 1505 DSS-26 GOLDSTONE 0835-1005 EST, Fri 6 Feb SNAPSHOT summary: ----------------- UTC 2026:036:13:25:01 (Feb 5) f_ACE 8.47e+01 F_CRM 4.63e+08 Kp 3.7 R km 113748D OBT 2026:036:13:22:07 CTUVCDU 13313151 OBC s/w NRML FMT2_NORM CPEstat NORM OBT 886684927.83 ONLVCDU 13313144 OBC Errs 0 OBSID 30316 EPState SUN SIM TTpos 92903 HETG Angle 77.59 PCADMODE NPNT RA 49.938 Bus V 26.64 SIM FApos -535 LETG Angle 76.09 PCONTROL NPNT Dec 41.529 Bus I 23.91 AOFSTAR GUID Roll 270.009 ACA Object FFFSSSSS Dither ENAB HRC-I HV OFF ACA ImFunc TTTTTTTT Dith Yang -15.17 Yaw Rate 0.13 HRC-S HV OFF ACA CCD Temp -4.3 Dith Zang -2.99 Pitch Rate 0.10 SHLD HV 0.0 ACA Int Time 1.698 Roll Rate 0.14 EVT RT 6374 AOACSTAT OK FSS SunBeta SUN SHLD RT 0 FSS Alfa 11.12 Batt 1 SOC 100.00% Avg HRMA Temp 74.32 FSS Beta -11.88 Batt 2 SOC 100.00% A -15 V -0.62 Avg OBA Temp 90.18 SA Resolv 101.56 Batt 3 SOC 100.00% A +15 V 2.81 OBA Tavg Fault NFLT SA Sun Pres ILLM A +5 V 4.84 OBA Trng Fault NFLT +Y SA Amps 11.98 A +24 V 0.00 HRMA power 64.50 SCS 128 ACT -Y SA Amps 11.60 OBA power 0.00 SCS 129 ACT +Y SA Temp 114.81 SCS 130 ACT -Y SA Temp 114.20 ACIS Stat7-0 6 Roll Mom. 10.174 SCS 131 ACT Cold Rad -123. Pitch Mom. -0.880 SCS 132 ACT Ephin Temp 0.0000 Warm Rad -79.6 Yaw Mom. 4.640 SCS 133 ACT EIO Temp 0.0000 RadMon ENAB PMTANKP 148.534 SCS 107 INAC EPH temp 178.27 UpLCmdAcc 27933 IRU2G2 curr 124.80 M Unload MON Cmd Rej A 248 IRU2G1 curr 96.00 Roll Bias 1.9714 TSC Move STOP Prop. line 03 172.34 Pitch Bias -4.1540 FA Move STOP CTX A PWR 36.21 Prop. line 04 172.34 Yaw Bias -1.8168 OTG Move DISA CTX A Volts 3.52 UTC 2026:036:13:57:01 (Feb 5) f_ACE 7.39e+01 F_CRM 4.63e+08 Kp 3.7 R km 111612D Currently scheduled FPSI, OTG : ACIS-I NONE Estimated Kp : 3.7 ACE EPAM P3 Proton Flux (p/cm^2-s-sr-MeV) : 1.25e+02 GOES-R P4 flux, in RADMON P4GM units : 4.01e-02 GOES-R P7 flux, in RADMON P41GM units : 1.11e-02 GOES-R E > 2.0 MeV flux (p/cm^2-s-sr) : 1.52e+02 Orbit Start Time : 2026:034:12:51:07 Geocentric Distance (km), Orbit Leg : 111701 D CRM Region : 1 (Solar_Wind) External Proton Flux (p/cm^2-s-sr-MeV) : 1.2500e+02 Attenuated Proton Flux (p/cm^2-s-sr-MeV) : 1.2500e+02 External Proton Orbital Fluence (p/cm^2-sr-MeV) : 4.9167e+08 Attenuated Proton Orbital Fluence (p/cm^2-sr-MeV) : 4.6335e+08