See https://cxc.harvard.edu/mta/SOT_reports/sot-shift.html Shift L9925. Start at 266:14:15 GMT PLAN ---- Finish: Obsid: 31345 SI: ACIS-S (10 ksec) Target: V4641 Sgr S1 Then: 2026:266:14:23:36 Obsid: 31415 SI: ACIS-I (10 ksec) Target: Perseus Cluster 2026:266:17:37:05 Obsid: 30412 SI: ACIS-I (9 ksec) Target: MACS J0018.5+16 2026:266:20:26:06 Grating: HETG 2026:266:20:28:33 RADMON Disable 2026:267:10:48:33 Grating: NONE 2026:267:11:03:52 RADMON Enable 2026:267:11:22:09 Obsid: 31416 SI: ACIS-I (10 ksec) Target: Perseus Cluster NOTES/ISSUES/PROBLEMS --------------------- From the 9am status meeting: 3 Supports Completed in the last 24 hours (Total time: 6 hours) 4 SSR dumps Radiation (Solar Activity): Solar activity is likely to be low with a slight chance for an M-class flare on days one, two, and three (23 Sep, 24 Sep, 25 Sep). Radiation (Geophysical Activity): The geomagnetic field is expected to be at quiet to active levels on day one (23 Sep), quiet to minor storm levels on day two (24 Sep) and unsettled to active levels on day three (25 Sep). MP: SEP2826A command loads in works. ENG: No issues. GOT: No issues. Quick look data: ---------------- OBSID Target Instr Grat ----- ------ ----- ---- 31143 msh 11-62 HRC-I NONE 31744 ACT-CL J0123.5-0428 ACIS-S NONE 33436 EXO 0748-676 ACIS-S NONE 33445 3CR 17 ACIS-S NONE 31414 Perseus Cluster ACIS-I NONE 31712 3CR 17 ACIS-S NONE 31230 SDSS J083721.87+192110.6 ACIS-S NONE 31435 PG 1700+518 ACIS-S NONE Next Comms: ----------- Support (GMT) BOT EOT Station Site Track time (local) --------------- ---- ---- --------- --------- ------------------------- 267/0515-0640 0550 0625 DSS-65 MADRID 0150-0225 EDT, Thu 24 Sep 267/1300-1500 1345 1445 DSS-26 GOLDSTONE 0945-1045 EDT, Thu 24 Sep 267/1600-1800 1645 1745 DSS-56 MADRID 1245-1345 EDT, Thu 24 Sep SNAPSHOT summary: ----------------- UTC 2026:266:11:22:01 (Sep23) f_ACE 1.15e+01 F_CRM 5.12e+08 Kp 2.0 R km 105428D OBT 2026:266:11:19:20 CTUVCDU 6947583 OBC s/w NRML FMT2_NORM CPEstat NORM OBT 906549560.39 ONLVCDU 6947576 OBC Errs 0 OBSID 31345 EPState SUN SIM TTpos 75624 HETG Angle 77.59 PCADMODE NPNT RA 274.830 Bus V 26.95 SIM FApos -467 LETG Angle 75.71 PCONTROL NPNT Dec -25.379 Bus I 24.69 AOFSTAR GUID Roll 269.996 ACA Object FFFSSSSS Dither ENAB HRC-I HV OFF ACA ImFunc TTTTTTTT Dith Yang -15.32 Yaw Rate 0.05 HRC-S HV OFF ACA CCD Temp -7.3 Dith Zang -1.16 Pitch Rate -0.45 SHLD HV 0.0 ACA Int Time 1.698 Roll Rate 0.66 EVT RT 4844 AOACSTAT OK FSS SunBeta SUN SHLD RT 0 FSS Alfa 1.83 Batt 1 SOC 100.00% Avg HRMA Temp 73.03 FSS Beta -4.66 Batt 2 SOC 100.00% A -15 V -0.62 Avg OBA Temp 83.22 SA Resolv 94.01 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 12.37 A +24 V 0.00 HRMA power 72.20 SCS 128 ACT -Y SA Amps 11.98 OBA power 35.10 SCS 129 ACT +Y SA Temp 111.43 SCS 130 ACT -Y SA Temp 110.51 ACIS Stat7-0 6 Roll Mom. 5.362 SCS 131 ACT Cold Rad -123. Pitch Mom. -3.683 SCS 132 ACT Ephin Temp 0.0000 Warm Rad -79.6 Yaw Mom. 7.151 SCS 133 ACT EIO Temp 0.0000 RadMon ENAB PMTANKP 150.132 SCS 107 INAC EPH temp 158.47 UpLCmdAcc 35866 IRU2G2 curr 122.40 M Unload MON Cmd Rej A 28 IRU2G1 curr 96.00 Roll Bias 2.0920 TSC Move STOP Prop. line 03 175.74 Pitch Bias -4.2781 FA Move STOP CTX A PWR 36.32 Prop. line 04 142.92 Yaw Bias -1.8614 OTG Move DISA CTX A Volts 3.52 UTC 2026:266:14:15:01 (Sep23) f_ACE 1.17e+01 F_CRM 5.12e+08 Kp 2.3 R km 105428D Currently scheduled FPSI, OTG : ACIS-S NONE Estimated Kp : 2.7 ACE EPAM P3 Proton Flux (p/cm^2-s-sr-MeV) : 2.29e+01 GOES-R P4 flux, in RADMON P4GM units : 8.01e-02 GOES-R P7 flux, in RADMON P41GM units : 8.34e-03 GOES-R E > 2.0 MeV flux (p/cm^2-s-sr) : 7.75e+02 Orbit Start Time : 2026:177:08:08:58 Geocentric Distance (km), Orbit Leg : 114347 D CRM Region : 3 (Magnetosphere) External Proton Flux (p/cm^2-s-sr-MeV) : 1.8248e+04 Attenuated Proton Flux (p/cm^2-s-sr-MeV) : 1.8248e+04 External Proton Orbital Fluence (p/cm^2-sr-MeV) : 8.1745e+08 Attenuated Proton Orbital Fluence (p/cm^2-sr-MeV) : 5.1173e+08