See https://cxc.harvard.edu/mta/SOT_reports/sot-shift.html Shift L9748. Start at 089:13:00 GMT PLAN ---- Finish: Obsid: 29913 SI: ACIS-S (44 ksec) Target: SDSS J164818.07 Then: 2026:089:18:04:11 Grating: HETG 2026:089:18:06:14 RADMON Disable 2026:090:04:07:00 Grating: NONE 2026:090:04:28:13 RADMON Enable 2026:090:04:50:31 Obsid: 30335 SI: ACIS-I (12 ksec) Target: Perseus cluster 2026:090:09:01:17 Obsid: 29656 SI: ACIS-S (10 ksec) Target: NGC4496A 2026:090:12:30:24 Obsid: 32268 SI: ACIS-I (17 ksec) Target: Perseus cluster NOTES/ISSUES/PROBLEMS --------------------- From the 9am status meeting: 10 Supports Completed over the weekend (Total time: 19.3 hours) 10 SSR dumps. Loads good through: 2026:093:11:25:15 Radiation (Solar Activity): Solar activity is expected to be low with a chance for M-class flares and a slight chance for an X-class flare on days one, two, and three (30 Mar, 31 Mar, 01 Apr). Radiation (Geophysical Activity): The geomagnetic field is expected to be at quiet to minor storm levels on day one (30 Mar), quiet to active levels on day two (31 Mar) and quiet levels on day three (01 Apr). MP: No issues. ENG: No issues. GOT: No issues. Quick look data: ---------------- OBSID Target Instr Grat ----- ------ ----- ---- 31127 SN 2026dix ACIS-S NONE 29933 SDSS J134234.31+191338.9 ACIS-S NONE 32245 NGC 4593 ACIS-S HETG 32261 CD-31 16041 ACIS-S NONE 31151 AT2026dbl ACIS-S NONE 31343 V4641 Sgr S2 ACIS-I NONE 30328 Perseus cluster N ACIS-I NONE 32244 NGC 4593 ACIS-S HETG 32249 Perseus cluster N ACIS-I NONE 31150 AT2026dbl ACIS-S NONE Next Comms: ----------- Support (GMT) BOT EOT Station Site Track time (local) --------------- ---- ---- --------- --------- ------------------------- 089/1900-2100 1945 2045 DSS-34 CANBERRA 1545-1645 EDT, Mon 30 Mar 090/0035-0235 0120 0220 DSS-26 GOLDSTONE 2120-2220 EDT, Mon 30 Mar 090/0935-1135 1020 1120 DSS-26 GOLDSTONE 0620-0720 EDT, Tue 31 Mar 090/1940-2140 2025 2125 DSS-54 MADRID 1625-1725 EDT, Tue 31 Mar SNAPSHOT summary: ----------------- UTC 2026:089:09:58:02 (Mar30) f_ACE 1.28e+01 F_CRM 6.94e+07 Kp 3.0 R km 115970D OBT 2026:089:09:55:37 CTUVCDU 14357631 OBC s/w NRML FMT2_NORM CPEstat NORM OBT 891251737.74 ONLVCDU 14357624 OBC Errs 0 OBSID 29913 EPState SUN SIM TTpos 75624 HETG Angle 77.59 PCADMODE NPNT RA 252.092 Bus V 27.11 SIM FApos -467 LETG Angle 76.09 PCONTROL NPNT Dec 41.913 Bus I 19.80 AOFSTAR GUID Roll 110.987 ACA Object FFFSSSSS Dither ENAB HRC-I HV OFF ACA ImFunc TTTTTTTT Dith Yang 7.76 Yaw Rate 0.15 HRC-S HV OFF ACA CCD Temp -5.8 Dith Zang -14.37 Pitch Rate 0.13 SHLD HV 0.0 ACA Int Time 1.698 Roll Rate -0.54 EVT RT 4589 AOACSTAT OK FSS SunBeta SUN SHLD RT 0 FSS Alfa -0.07 Batt 1 SOC 100.00% Avg HRMA Temp 73.68 FSS Beta -17.13 Batt 2 SOC 100.00% A -15 V -0.62 Avg OBA Temp 85.79 SA Resolv 106.61 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 10.06 A +24 V 0.00 HRMA power 0.00 SCS 128 ACT -Y SA Amps 10.06 OBA power 0.00 SCS 129 ACT +Y SA Temp 113.89 SCS 130 ACT -Y SA Temp 112.97 ACIS Stat7-0 6 Roll Mom. -6.013 SCS 131 ACT Cold Rad -118. Pitch Mom. -1.002 SCS 132 ACT Ephin Temp 0.0000 Warm Rad -77.1 Yaw Mom. 8.024 SCS 133 ACT EIO Temp 0.0000 RadMon ENAB PMTANKP 150.132 SCS 107 INAC EPH temp 178.27 UpLCmdAcc 13710 IRU2G2 curr 120.00 M Unload MON Cmd Rej A 152 IRU2G1 curr 96.00 Roll Bias 2.0022 TSC Move STOP Prop. line 03 165.53 Pitch Bias -4.1865 FA Move STOP CTX A PWR 36.32 Prop. line 04 142.92 Yaw Bias -1.8373 OTG Move DISA CTX A Volts 3.52 UTC 2026:089:13:04:02 (Mar30) f_ACE 1.51e+01 F_CRM 7.27e+07 Kp 2.3 R km 103021D Currently scheduled FPSI, OTG : ACIS-S NONE Estimated Kp : 2.0 ACE EPAM P3 Proton Flux (p/cm^2-s-sr-MeV) : 1.20e+01 GOES-R P4 flux, in RADMON P4GM units : 2.00e-02 GOES-R P7 flux, in RADMON P41GM units : 8.34e-03 GOES-R E > 2.0 MeV flux (p/cm^2-s-sr) : 1.05e+03 Orbit Start Time : 2026:087:10:10:14 Geocentric Distance (km), Orbit Leg : 103414 D CRM Region : 2 (Magnetosheath) External Proton Flux (p/cm^2-s-sr-MeV) : 2.9211e+02 Attenuated Proton Flux (p/cm^2-s-sr-MeV) : 2.9211e+02 External Proton Orbital Fluence (p/cm^2-sr-MeV) : 9.2817e+07 Attenuated Proton Orbital Fluence (p/cm^2-sr-MeV) : 7.2714e+07