See https://cxc.harvard.edu/mta/SOT_reports/sot-shift.html Shift L9910. Start at 251:13:00 GMT PLAN ---- Start in radiation zone Then: 2026:251:13:57:03 Grating: NONE 2026:251:14:06:01 RADMON Enable 2026:251:14:28:19 Obsid: 32929 SI: ACIS-I (13 ksec) Target: MACS J0018.5+16 2026:251:19:19:35 Obsid: 30117 SI: ACIS-I (10 ksec) Target: PSR J1015-5719 2026:251:22:48:40 Obsid: 29895 SI: HRC-I (9 ksec) Target: VV 114 2026:252:02:28:54 Obsid: 32246 SI: ACIS-I (19 ksec) Target: Abell 2255 2026:252:08:24:53 Obsid: 32922 SI: ACIS-I (10 ksec) Target: RMJ232421.7+020 2026:252:11:46:21 Obsid: 30367 SI: ACIS-I (32 ksec) Target: Perseus cluster NOTES/ISSUES/PROBLEMS --------------------- From the 9am status meeting: 2 Supports Completed in the last 24 hours (Total time: 4 hours) 2 SSR dumps. Radiation (Solar Activity): Solar activity is likely to be low with a slight chance for an M-class flare on days one, two, and three (08 Sep, 09 Sep, 10 Sep). Radiation (Geophysical Activity): The geomagnetic field is expected to be at unsettled to minor storm levels on days one and two (08 Sep, 09 Sep) and quiet to unsettled levels on day three (10 Sep). MP: No issues. ENG: No issues. GOT: We are running on the backup voice loop router, due to a failure of the primary router at JPL over the weekend. No impact. Quick look data: ---------------- OBSID Target Instr Grat ----- ------ ----- ---- 30361 Perseus cluster E ACIS-I NONE 32926 SDSS J162501.98+430931.6 ACIS-S NONE 30416 MACS J0018.5+1626 ACIS-I NONE 29912 SDSS J162501.98+430931.6 ACIS-S NONE 32523 1RXS J044334.6-084744 ACIS-S NONE 30450 G29-38 HRC-I NONE 32534 Abell 2667 ACIS-I NONE 32533 Abell 2667 ACIS-I NONE 32526 PSR J1015-5719 ACIS-I NONE 32524 PSR J1015-5719 ACIS-I NONE 30513 Abell 2667 ACIS-I NONE 32525 PSR J1015-5719 ACIS-I NONE 29815 PSR J1015-5719 ACIS-I NONE 32532 G29-38 HRC-I NONE 32521 GJ 2006 B ACIS-S NONE 32522 V* V1116 Tau ACIS-S NONE Next Comms: ----------- Support (GMT) BOT EOT Station Site Track time (local) --------------- ---- ---- --------- --------- ------------------------- 251/1850-2050 1935 2035 DSS-56 MADRID 1535-1635 EDT, Tue 8 Sep 252/0215-0415 0300 0400 DSS-23 GOLDSTONE 2300-0000 EDT, Tue 8 Sep 252/1645-1915 1730 1900 DSS-53 MADRID 1330-1500 EDT, Wed 9 Sep SNAPSHOT summary: ----------------- UTC 2026:251:02:55:01 (Sep 8) f_ACE 4.95e+02 F_CRM 5.12e+08 Kp 4.3 R km 105428D OBT 2026:251:02:52:08 CTUVCDU 1771263 OBC s/w NRML FMT2_NORM CPEstat NORM OBT 905223128.10 ONLVCDU 1771256 OBC Errs 0 OBSID 41163 EPState SUN SIM TTpos -99616 HETG Angle 5.59 PCADMODE NPNT RA 348.607 Bus V 27.11 SIM FApos -535 LETG Angle 75.71 PCONTROL NPNT Dec 3.163 Bus I 21.34 AOFSTAR GUID Roll 165.197 ACA Object SSSSSSSS Dither ENAB HRC-I HV OFF ACA ImFunc TTTTTTTT Dith Yang 15.95 Yaw Rate 0.15 HRC-S HV OFF ACA CCD Temp -4.3 Dith Zang 14.69 Pitch Rate 0.41 SHLD HV 0.0 ACA Int Time 1.698 Roll Rate 0.19 EVT RT 3569 AOACSTAT OK FSS SunBeta NSUN SHLD RT 0 FSS Alfa -49.57 Batt 1 SOC 100.00% Avg HRMA Temp 73.78 FSS Beta -49.72 Batt 2 SOC 100.00% A -15 V -0.62 Avg OBA Temp 86.11 SA Resolv 170.40 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 10.63 A +24 V 0.00 HRMA power 41.10 SCS 128 ACT -Y SA Amps 10.44 OBA power 0.00 SCS 129 ACT +Y SA Temp 111.43 SCS 130 ACT -Y SA Temp 110.20 ACIS Stat7-0 6 Roll Mom. 8.862 SCS 131 ACT Cold Rad -118. Pitch Mom. 0.404 SCS 132 ACT Ephin Temp 0.0000 Warm Rad -77.1 Yaw Mom. 7.706 SCS 133 ACT EIO Temp 0.0000 RadMon DISA PMTANKP 150.132 SCS 107 INAC EPH temp 126.31 UpLCmdAcc 270 IRU2G2 curr 120.00 M Unload MON Cmd Rej A 53 IRU2G1 curr 96.00 Roll Bias 2.0783 TSC Move STOP Prop. line 03 113.47 Pitch Bias -4.2694 FA Move STOP CTX B PWR 36.96 Prop. line 04 123.15 Yaw Bias -1.8518 OTG Move DISA CTX B Volts 3.54 UTC 2026:251:13:02:01 (Sep 8) f_ACE 6.35e+02 F_CRM 5.12e+08 Kp 4.7 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 : 1.21e-01 GOES-R P7 flux, in RADMON P41GM units : 5.56e-03 GOES-R E > 2.0 MeV flux (p/cm^2-s-sr) : 3.87e+02 Orbit Start Time : 2026:177:08:08:58 Geocentric Distance (km), Orbit Leg : 54936 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