See https://cxc.harvard.edu/mta/SOT_reports/sot-shift.html Shift L9896. Start at 237:13:00 GMT PLAN ---- Finish: Obsid: 32514 SI: ACIS-S (15 ksec) Target: SDSS J142314.36 Then: 2026:237:15:40:00 Obsid: 32496 SI: HRC-S (1 ksec) Target: RT Cru 2026:237:16:49:58 Obsid: 30128 SI: ACIS-S (14 ksec) Target: SNR G1.9+0.3 2026:237:20:54:54 Grating: HETG 2026:237:20:56:57 RADMON Disable 2026:238:08:53:08 Grating: NONE 2026:238:09:09:36 RADMON Enable 2026:238:09:34:37 Obsid: 30095 SI: ACIS-I (13 ksec) Target: [CTC2021] Vela NOTES/ISSUES/PROBLEMS --------------------- From the 9am status meeting: 2 Supports Completed in the last 24 hours (Total time: 4 hours) 3 SSR dumps CAP's: - 1804A, 236/1537z, HRC-S Restart, Contingency Step # 2 run. 2SPHVOF DSN DR's Created - DSS-24, No telemetry for first 30min. No commanding for first 40min, Goldstone Network Issues. Extended comm by 30min. Radiation (Solar Activity): Solar activity is expected to be low with a 55% chance for M-class flares and a slight 10% chance for an X-class flare on days one, two, and three (25 Aug, 26 Aug, 27 Aug). Four M-class flares have been detected in the last 24 hours, ranging from M1.7 to M7.0, from a geoeffective active region 4513. No info on any potential CMEs yet, we will keep an eye on any updates regarding CMEs. Radiation (Geophysical Activity): The geomagnetic field is expected to be at quiet levels on days one and two (25 Aug, 26 Aug) and quiet to active levels on day three (27 Aug). Protons have a chance of crossing threshold on day one (25 Aug) and have a slight chance of crossing threshold on days two and three (26 Aug, 27 Aug). MP: No issues. ENG: A CAP for additional HRC diagnostics planned for today. GOT: No issues. Quick look data: ---------------- OBSID Target Instr Grat ----- ------ ----- ---- 32511 Cassiopeia A ACIS-S NONE 30214 WISE J2246-0526 ACIS-S NONE 32495 X-ray blank sky HRC-S NONE 29816 Cassiopeia A ACIS-S NONE Next Comms: ----------- Support (GMT) BOT EOT Station Site Track time (local) --------------- ---- ---- --------- --------- ------------------------- 237/1430-1630 1515 1615 DSS-53 MADRID 1115-1215 EDT, Tue 25 Aug 238/1045-1215 1120 1200 DSS-53 MADRID 0720-0800 EDT, Wed 26 Aug 238/1945-2145 2030 2130 DSS-54 MADRID 1630-1730 EDT, Wed 26 Aug SNAPSHOT summary: ----------------- UTC 2026:237:03:34:02 (Aug25) f_ACE 2.19e+02 F_CRM 5.12e+08 Kp 2.7 R km 105428D OBT 2026:237:03:30:58 CTUVCDU 13837183 OBC s/w NRML FMT2_NORM CPEstat NORM OBT 904015858.65 ONLVCDU 13837176 OBC Errs 0 OBSID 30188 EPState SUN SIM TTpos 75623 HETG Angle 77.59 PCADMODE NPNT RA 215.773 Bus V 27.26 SIM FApos -467 LETG Angle 75.71 PCONTROL NPNT Dec 63.985 Bus I 21.86 AOFSTAR GUID Roll 290.620 ACA Object FFFSSSSS Dither ENAB HRC-I HV OFF ACA ImFunc TTTTTTTT Dith Yang -5.87 Yaw Rate -0.01 HRC-S HV OFF ACA CCD Temp -3.2 Dith Zang 7.22 Pitch Rate 0.13 SHLD HV 0.0 ACA Int Time 1.698 Roll Rate -0.13 EVT RT 6374 AOACSTAT OK FSS SunBeta SUN SHLD RT 0 FSS Alfa -0.24 Batt 1 SOC 100.00% Avg HRMA Temp 74.97 FSS Beta 21.41 Batt 2 SOC 100.00% A -15 V -0.62 Avg OBA Temp 87.24 SA Resolv 67.93 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 11.02 A +24 V 0.00 HRMA power 94.40 SCS 128 ACT -Y SA Amps 10.63 OBA power 0.00 SCS 129 ACT +Y SA Temp 109.58 SCS 130 ACT -Y SA Temp 108.97 ACIS Stat7-0 6 Roll Mom. -2.839 SCS 131 ACT Cold Rad -120. Pitch Mom. 8.854 SCS 132 ACT Ephin Temp 0.0000 Warm Rad -79.6 Yaw Mom. 2.891 SCS 133 ACT EIO Temp 0.0000 RadMon ENAB PMTANKP 153.330 SCS 107 INAC EPH temp 126.31 UpLCmdAcc 34554 IRU2G2 curr 117.60 M Unload MON Cmd Rej A 138 IRU2G1 curr 96.00 Roll Bias 2.0766 TSC Move STOP Prop. line 03 165.53 Pitch Bias -4.2632 FA Move STOP CTX B PWR 36.92 Prop. line 04 127.54 Yaw Bias -1.8588 OTG Move DISA CTX B Volts 3.54 UTC 2026:237:12:48:01 (Aug25) f_ACE 1.06e+02 F_CRM 5.12e+08 Kp 1.7 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 : 1.30e+00 GOES-R P7 flux, in RADMON P41GM units : 8.38e-03 GOES-R E > 2.0 MeV flux (p/cm^2-s-sr) : 9.62e+02 Orbit Start Time : 2026:177:08:08:58 Geocentric Distance (km), Orbit Leg : 112013 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