See https://cxc.harvard.edu/mta/SOT_reports/sot-shift.html Shift L9897. Start at 238:13:00 GMT PLAN ---- Finish: Obsid: 30095 SI: ACIS-I (13 ksec) Target: [CTC2021] Vela Then: 2026:238:13:56:17 Obsid: 30034 SI: ACIS-S (11 ksec) Target: ACT-CL J2317.7- 2026:238:17:31:12 Obsid: 30407 SI: ACIS-S (9 ksec) Target: ClG J0242-2132 2026:238:20:55:00 Obsid: 32497 SI: HRC-S (1 ksec) Target: 2CXO J225932.9+ 2026:238:22:12:56 Obsid: 30409 SI: ACIS-S (68 ksec) Target: ClG J0242-2132 NOTES/ISSUES/PROBLEMS --------------------- From the 9am status meeting: 3 Supports Completed in the last 24 hours (Total time: 5.5 hours) 3 SSR dumps Loads good through: 2026:241:22:33:39 CAP's - 1804B, 237/1521z, HRC-S Restart Radiation (Solar Activity): Solar activity is likely to be moderate with a 55% chance for M-class flares and a slight 15% chance for an X-class flare on days one, two, and three (26 Aug, 27 Aug, 28 Aug). Two additional low M-class flares were observed this morning from the Earth facing AR 4513. A CME produced by the M7-class flare, observed yesterday, is forecasted to glance past Earth sometime on Friday Aug 27. There should be no mission impact. Radiation (Geophysical Activity): The geomagnetic field is expected to be at quiet levels on day one (26 Aug), unsettled to minor storm levels on day two (27 Aug) and active to major storm levels on day three (28 Aug). Protons have a slight chance of crossing threshold on days one, two, and three (26 Aug, 27 Aug, 28 Aug). MP: No issues. ENG: No issues. GOT: No issues. Quick look data: ---------------- OBSID Target Instr Grat ----- ------ ----- ---- 32496 RT Cru HRC-S NONE 30128 SNR G1.9+0.3 ACIS-S NONE 30188 SDSS J142314.36+635803.6 ACIS-S NONE 32514 SDSS J142314.36+635803.6 ACIS-S NONE 30216 WISE J2246-0526 ACIS-S NONE Next Comms: ----------- Support (GMT) BOT EOT Station Site Track time (local) --------------- ---- ---- --------- --------- ------------------------- 238/1945-2145 2030 2130 DSS-54 MADRID 1630-1730 EDT, Wed 26 Aug 239/0215-0415 0300 0400 DSS-23 GOLDSTONE 2300-0000 EDT, Wed 26 Aug 239/1125-1325 1210 1310 DSS-54 MADRID 0810-0910 EDT, Thu 27 Aug SNAPSHOT summary: ----------------- UTC 2026:238:12:00:01 (Aug26) f_ACE 4.91e+01 F_CRM 5.12e+08 Kp 0.3 R km 105428D OBT 2026:238:11:57:39 CTUVCDU 14292991 OBC s/w NRML FMT2_NORM CPEstat NORM OBT 904132659.29 ONLVCDU 14292984 OBC Errs 0 OBSID 30095 EPState SUN SIM TTpos 92903 HETG Angle 77.59 PCADMODE NPNT RA 134.873 Bus V 27.26 SIM FApos -535 LETG Angle 75.71 PCONTROL NPNT Dec -43.540 Bus I 21.86 AOFSTAR GUID Roll 156.487 ACA Object FFFSSSSS Dither ENAB HRC-I HV OFF ACA ImFunc TTTTTTTT Dith Yang 14.78 Yaw Rate -0.17 HRC-S HV OFF ACA CCD Temp -6.6 Dith Zang -16.00 Pitch Rate -0.16 SHLD HV 0.0 ACA Int Time 1.698 Roll Rate -0.12 EVT RT 6374 AOACSTAT OK FSS SunBeta SUN SHLD RT 0 FSS Alfa -0.55 Batt 1 SOC 100.00% Avg HRMA Temp 74.65 FSS Beta 32.75 Batt 2 SOC 100.00% A -15 V -0.62 Avg OBA Temp 81.45 SA Resolv 56.66 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 9.60 SCS 128 ACT -Y SA Amps 10.63 OBA power 0.00 SCS 129 ACT +Y SA Temp 110.20 SCS 130 ACT -Y SA Temp 109.58 ACIS Stat7-0 6 Roll Mom. -2.530 SCS 131 ACT Cold Rad -118. Pitch Mom. -8.379 SCS 132 ACT Ephin Temp 0.0000 Warm Rad -79.6 Yaw Mom. 1.371 SCS 133 ACT EIO Temp 0.0000 RadMon ENAB PMTANKP 153.330 SCS 107 INAC EPH temp 126.31 UpLCmdAcc 37889 IRU2G2 curr 120.00 M Unload MON Cmd Rej A 208 IRU2G1 curr 93.60 Roll Bias 2.0696 TSC Move STOP Prop. line 03 158.73 Pitch Bias -4.2572 FA Move STOP CTX A PWR 36.38 Prop. line 04 116.70 Yaw Bias -1.8574 OTG Move DISA CTX A Volts 3.52 UTC 2026:238:13:06:01 (Aug26) f_ACE 3.96e+01 F_CRM 5.12e+08 Kp 0.3 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 : 3.64e-01 GOES-R P7 flux, in RADMON P41GM units : 5.58e-03 GOES-R E > 2.0 MeV flux (p/cm^2-s-sr) : 1.31e+03 Orbit Start Time : 2026:177:08:08:58 Geocentric Distance (km), Orbit Leg : 91015 A 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