See https://cxc.harvard.edu/mta/SOT_reports/sot-shift.html Shift L9777. Start at 118:13:00 GMT PLAN ---- Finish: Obsid: 32319 SI: ACIS-S (22 ksec) Target: SPT-CLJ2223-501 Then: 2026:118:15:25:24 Obsid: 29883 SI: ACIS-S (10 ksec) Target: SDSS J152322.13 2026:118:18:30:33 Grating: HETG 2026:118:18:32:36 RADMON Disable 2026:119:06:50:08 Grating: NONE 2026:119:07:09:53 RADMON Enable 2026:119:07:32:11 Obsid: 31877 SI: ACIS-S (13 ksec) Target: NGC1317 2026:119:11:54:34 Obsid: 31106 SI: ACIS-S (60 ksec) Target: EP260321a NOTES/ISSUES/PROBLEMS --------------------- From the 9am status meeting: 3 Supports Completed in the last 24 hours (Total time: 6 hours) 4 SSR dumps Loads good through: 2026:123:02:15:17 Radiation (Solar Activity): Solar activity is likely to be moderate with a 25% chance for X-class flares on days one, two, and three (28 Apr, 29 Apr, 30 Apr). Radiation (Geophysical Activity): The geomagnetic field is expected to be at quiet levels on day one (28 Apr) and quiet to active levels on days two and three (29 Apr, 30 Apr). Protons have a slight chance of crossing threshold on days one, two, and three (28 Apr, 29 Apr, 30 Apr). MP: The next set of loads is in work. ENG: No issues. GOT: No issues. Quick look data: ---------------- OBSID Target Instr Grat ----- ------ ----- ---- 30199 NGC5728 ACIS-S NONE 32321 NGC 424 ACIS-S NONE Next Comms: ----------- Support (GMT) BOT EOT Station Site Track time (local) --------------- ---- ---- --------- --------- ------------------------- 118/1330-1505 1405 1450 DSS-24 GOLDSTONE 1005-1050 EDT, Tue 28 Apr 119/0030-0230 0115 0215 DSS-34 CANBERRA 2115-2215 EDT, Tue 28 Apr 119/1005-1205 1050 1150 DSS-26 GOLDSTONE 0650-0750 EDT, Wed 29 Apr 119/1845-2045 1930 2030 DSS-65 MADRID 1530-1630 EDT, Wed 29 Apr SNAPSHOT summary: ----------------- UTC 2026:118:10:36:01 (Apr28) f_ACE 1.46e+02 F_CRM 9.13e+07 Kp 1.0 R km 121000D OBT 2026:118:10:35:30 CTUVCDU 7367702 OBC s/w NRML FMT2_NORM CPEstat NORM OBT 893759730.21 ONLVCDU 7367696 OBC Errs 0 OBSID 32319 EPState SUN SIM TTpos 75624 HETG Angle 77.59 PCADMODE NPNT RA 335.874 Bus V 27.11 SIM FApos -467 LETG Angle 75.71 PCONTROL NPNT Dec -50.288 Bus I 22.63 AOFSTAR GUID Roll 117.031 ACA Object FFFSSSSS Dither ENAB HRC-I HV OFF ACA ImFunc TTTTTTTT Dith Yang -15.39 Yaw Rate 0.32 HRC-S HV OFF ACA CCD Temp -8.8 Dith Zang 7.66 Pitch Rate 0.22 SHLD HV 0.0 ACA Int Time 1.698 Roll Rate -0.06 EVT RT 4844 AOACSTAT OK FSS SunBeta SUN SHLD RT 0 FSS Alfa 5.14 Batt 1 SOC 100.00% Avg HRMA Temp 74.11 FSS Beta 6.95 Batt 2 SOC 100.00% A -15 V -0.62 Avg OBA Temp 75.98 SA Resolv 82.41 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 11.21 A +24 V 0.00 HRMA power 61.40 SCS 128 ACT -Y SA Amps 11.02 OBA power 0.00 SCS 129 ACT +Y SA Temp 110.51 SCS 130 ACT -Y SA Temp 110.20 ACIS Stat7-0 6 Roll Mom. 0.140 SCS 131 ACT Cold Rad -118. Pitch Mom. -8.771 SCS 132 INAC Ephin Temp 0.0000 Warm Rad -77.1 Yaw Mom. 2.107 SCS 133 ACT EIO Temp 0.0000 RadMon ENAB PMTANKP 150.132 SCS 107 INAC EPH temp 175.44 UpLCmdAcc 1636 IRU2G2 curr 117.60 M Unload MON Cmd Rej A 47 IRU2G1 curr 93.60 Roll Bias 2.0046 TSC Move STOP Prop. line 03 134.13 Pitch Bias -4.1941 FA Move STOP CTX B PWR 36.96 Prop. line 04 111.86 Yaw Bias -1.8296 OTG Move DISA CTX B Volts 3.54 UTC 2026:118:12:58:01 (Apr28) f_ACE 1.56e+02 F_CRM 9.33e+07 Kp 1.0 R km 112420D Currently scheduled FPSI, OTG : ACIS-S NONE Estimated Kp : 0.3 ACE EPAM P3 Proton Flux (p/cm^2-s-sr-MeV) : 1.66e+02 GOES-R P4 flux, in RADMON P4GM units : 0.00e+00 GOES-R P7 flux, in RADMON P41GM units : 1.11e-02 GOES-R E > 2.0 MeV flux (p/cm^2-s-sr) : 2.13e+02 Orbit Start Time : 2026:116:12:17:38 Geocentric Distance (km), Orbit Leg : 112597 D CRM Region : 3 (Magnetosphere) External Proton Flux (p/cm^2-s-sr-MeV) : 3.8253e+02 Attenuated Proton Flux (p/cm^2-s-sr-MeV) : 3.8253e+02 External Proton Orbital Fluence (p/cm^2-sr-MeV) : 1.2784e+08 Attenuated Proton Orbital Fluence (p/cm^2-sr-MeV) : 9.3332e+07