See https://cxc.harvard.edu/mta/SOT_reports/sot-shift.html Shift L9912. Start at 253:13:00 GMT PLAN ---- Finish: Obsid: 31882 SI: ACIS-I (35 ksec) Target: Perseus cluster Then: 2026:253:14:57:31 Grating: HETG 2026:253:14:59:57 RADMON Disable 2026:254:05:50:40 Grating: NONE 2026:254:05:59:16 RADMON Enable 2026:254:06:21:34 Obsid: 31711 SI: ACIS-S (15 ksec) Target: 3CR 17 2026:254:11:35:57 Obsid: 32928 SI: ACIS-I (13 ksec) Target: PSR J1015-5719 NOTES/ISSUES/PROBLEMS --------------------- From the 9am status meeting: 3 Supports Completed in the last 24 hours (Total time: 6.5 hours) 3 SSR dumps. Loads good through: 2026:257:02:09:17 Radiation (Solar Activity): Solar activity is likely to be low with a slight chance for an M-class flare on day one (10 Sep) and expected to be very low with a chance for a C-class flares and a slight chance for an M-class flare on day two (11 Sep) and expected to be very low with a chance for a C-class flares on day three (12 Sep). Radiation (Geophysical Activity): The geomagnetic field is expected to be at quiet to unsettled levels on days one, two, and three (10 Sep, 11 Sep, 12 Sep). MP: Sept 14 loads out for review, reviews due by 5pm. ENG: No issues. GOT: No issues. Quick look data: ---------------- OBSID Target Instr Grat ----- ------ ----- ---- 32927 PSR J1015-5719 ACIS-I NONE 30439 G29-38 HRC-I NONE 32246 Abell 2255 ACIS-I NONE 30367 Perseus cluster E ACIS-I NONE 32922 RMJ232421.7+020618.6 ACIS-I NONE Next Comms: ----------- Support (GMT) BOT EOT Station Site Track time (local) --------------- ---- ---- --------- --------- ------------------------- 253/1800-2000 1845 1945 DSS-56 MADRID 1445-1545 EDT, Thu 10 Sep 254/1135-1335 1220 1320 DSS-53 MADRID 0820-0920 EDT, Fri 11 Sep 254/1725-1925 1810 1910 DSS-54 MADRID 1410-1510 EDT, Fri 11 Sep SNAPSHOT summary: ----------------- UTC 2026:253:11:49:01 (Sep10) f_ACE 4.75e+01 F_CRM 5.12e+08 Kp 2.3 R km 105428D OBT 2026:253:11:46:04 CTUVCDU 2570623 OBC s/w NRML FMT2_NORM CPEstat NORM OBT 905427964.24 ONLVCDU 2570616 OBC Errs 0 OBSID 31882 EPState SUN SIM TTpos 92903 HETG Angle 77.59 PCADMODE NPNT RA 50.079 Bus V 27.11 SIM FApos -535 LETG Angle 75.71 PCONTROL NPNT Dec 41.504 Bus I 21.86 AOFSTAR GUID Roll 107.988 ACA Object FFFSSSSS Dither ENAB HRC-I HV OFF ACA ImFunc TTTTTTTT Dith Yang 14.34 Yaw Rate 0.18 HRC-S HV OFF ACA CCD Temp -4.3 Dith Zang 3.08 Pitch Rate 0.22 SHLD HV 0.0 ACA Int Time 1.698 Roll Rate -0.30 EVT RT 3314 AOACSTAT OK FSS SunBeta SUN SHLD RT 0 FSS Alfa 5.09 Batt 1 SOC 100.00% Avg HRMA Temp 74.22 FSS Beta -17.68 Batt 2 SOC 100.00% A -15 V -0.62 Avg OBA Temp 89.65 SA Resolv 106.84 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 61.40 SCS 128 ACT -Y SA Amps 10.63 OBA power 0.00 SCS 129 ACT +Y SA Temp 110.82 SCS 130 ACT -Y SA Temp 110.20 ACIS Stat7-0 6 Roll Mom. -6.248 SCS 131 ACT Cold Rad -123. Pitch Mom. -5.305 SCS 132 ACT Ephin Temp 0.0000 Warm Rad -79.6 Yaw Mom. 21.587 SCS 133 ACT EIO Temp 0.0000 RadMon ENAB PMTANKP 142.139 SCS 107 INAC EPH temp 126.31 UpLCmdAcc 5616 IRU2G2 curr 117.60 M Unload MON Cmd Rej A 159 IRU2G1 curr 96.00 Roll Bias 2.0847 TSC Move STOP Prop. line 03 168.93 Pitch Bias -4.2726 FA Move STOP CTX B PWR 36.92 Prop. line 04 162.13 Yaw Bias -1.8629 OTG Move DISA CTX B Volts 3.54 UTC 2026:253:14:32:01 (Sep10) f_ACE 5.66e+01 F_CRM 5.12e+08 Kp 2.3 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 : 2.05e-02 GOES-R P7 flux, in RADMON P41GM units : 2.79e-03 GOES-R E > 2.0 MeV flux (p/cm^2-s-sr) : 1.81e+03 Orbit Start Time : 2026:177:08:08:58 Geocentric Distance (km), Orbit Leg : 89019 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