See https://cxc.harvard.edu/mta/SOT_reports/sot-shift.html Shift L9918. Start at 259:12:55 GMT PLAN ---- Finish: Obsid: 33217 SI: ACIS-S (10 ksec) Target: SDSSJ101730.98+ Then: 2026:259:16:20:40 Obsid: 31386 SI: ACIS-I (2 ksec) Target: Cas A 2026:259:17:15:16 Obsid: 31387 SI: ACIS-I (2 ksec) Target: Cas A 2026:259:17:57:06 Obsid: 31388 SI: ACIS-I (2 ksec) Target: Cas A 2026:259:18:57:03 Obsid: 30023 SI: ACIS-I (10 ksec) Target: MACS J0018.5+16 2026:259:22:23:49 Obsid: 32933 SI: ACIS-S (12 ksec) Target: 5C 7.230 2026:260:02:33:17 Obsid: 31314 SI: ACIS-S (21 ksec) Target: 3CR 17 2026:260:09:12:46 Obsid: 33234 SI: ACIS-S (15 ksec) Target: 5C 7.230 NOTES/ISSUES/PROBLEMS --------------------- From the 9am status meeting: 2 Supports Completed in the last 24 hours (Total time: 3.8 hours) 3 SSR dumps Loads good through: 2026:263:06:52:20.000 Radiation (Solar Activity): Solar activity is expected to be very low with a chance for a C-class flares on days one, two, and three (16 Sep, 17 Sep, 18 Sep). Radiation (Geophysical Activity): The geomagnetic field is expected to be at unsettled to minor storm levels on days one and two (16 Sep, 17 Sep) and quiet to active levels on day three (18 Sep). MP: SEP2126A command loads in works. ENG: No issues. GOT: No issues. Quick look data: ---------------- OBSID Target Instr Grat ----- ------ ----- ---- 33226 NGC5728 ACIS-S NONE 30125 SNR G1.9+0.3 ACIS-S NONE 33218 SDSSJ224240.98-002521.6 ACIS-S NONE 32461 AT2024dky HRC-I NONE 33215 SDSSJ231240.03-083919.8 ACIS-S NONE 30194 NGC5728 ACIS-S NONE 33219 LP 876-8 ACIS-S NONE 33220 [CTC2021] Vela C CR1c1 ACIS-I NONE 33221 [CTC2021] Vela C CR1c1 ACIS-I NONE 33230 SN 2021ocs ACIS-S NONE Next Comms: ----------- Support (GMT) BOT EOT Station Site Track time (local) --------------- ---- ---- --------- --------- ------------------------- 259/1010-1200 1045 1145 DSS-56 MADRID 0645-0745 EDT, Wed 16 Sep 259/1935-2135 2020 2120 DSS-53 MADRID 1620-1720 EDT, Wed 16 Sep 260/0915-1115 1000 1100 DSS-54 MADRID 0600-0700 EDT, Thu 17 Sep 260/2015-2245 2100 2230 DSS-65 MADRID 1700-1830 EDT, Thu 17 Sep SNAPSHOT summary: ----------------- UTC 2026:259:11:45:02 (Sep16) f_ACE 1.22e+02 F_CRM 5.12e+08 Kp 2.7 R km 105428D OBT 2026:259:11:42:18 CTUVCDU 4592767 OBC s/w NRML FMT2_NORM CPEstat NORM OBT 905946138.52 ONLVCDU 4592760 OBC Errs 0 OBSID 41136 EPState SUN SIM TTpos -99616 HETG Angle 5.59 PCADMODE NPNT RA 353.998 Bus V 26.79 SIM FApos -467 LETG Angle 75.71 PCONTROL NPNT Dec 1.000 Bus I 26.46 AOFSTAR GUID Roll 176.916 ACA Object SSSSSSSS Dither ENAB HRC-I HV OFF ACA ImFunc TTTTTTTT Dith Yang 7.74 Yaw Rate 0.20 HRC-S HV OFF ACA CCD Temp -10.4 Dith Zang -1.94 Pitch Rate 0.02 SHLD HV 0.0 ACA Int Time 1.698 Roll Rate 0.19 EVT RT 4844 AOACSTAT OK FSS SunBeta NSUN SHLD RT 0 FSS Alfa -49.57 Batt 1 SOC 100.00% Avg HRMA Temp 72.81 FSS Beta -49.72 Batt 2 SOC 100.00% A -15 V -0.62 Avg OBA Temp 77.75 SA Resolv 176.04 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 13.14 A +24 V 0.00 HRMA power 61.40 SCS 128 ACT -Y SA Amps 12.76 OBA power 35.10 SCS 129 ACT +Y SA Temp 112.04 SCS 130 ACT -Y SA Temp 110.82 ACIS Stat7-0 6 Roll Mom. 3.659 SCS 131 ACT Cold Rad -123. Pitch Mom. 1.208 SCS 132 ACT Ephin Temp 0.0000 Warm Rad -84.4 Yaw Mom. -4.362 SCS 133 ACT EIO Temp 0.0000 RadMon DISA PMTANKP 150.132 SCS 107 INAC EPH temp 158.47 UpLCmdAcc 21518 IRU2G2 curr 120.00 M Unload MON Cmd Rej A 223 IRU2G1 curr 96.00 Roll Bias 2.0853 TSC Move STOP Prop. line 03 168.93 Pitch Bias -4.2735 FA Move STOP CTX A PWR 36.32 Prop. line 04 136.33 Yaw Bias -1.8651 OTG Move DISA CTX A Volts 3.52 UTC 2026:259:12:55:01 (Sep16) f_ACE 1.14e+02 F_CRM 5.12e+08 Kp 2.7 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 : 1.20e-01 GOES-R P7 flux, in RADMON P41GM units : 5.56e-03 GOES-R E > 2.0 MeV flux (p/cm^2-s-sr) : 2.55e+02 Orbit Start Time : 2026:177:08:08:58 Geocentric Distance (km), Orbit Leg : 65961 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