See https://cxc.harvard.edu/mta/SOT_reports/sot-shift.html Shift L9717. Start at 058:14:00 GMT PLAN ---- Finish: Obsid: 30304 SI: ACIS-I (24 ksec) Target: Perseus cluster Then: 2026:058:19:54:58 Obsid: 32180 SI: ACIS-S (13 ksec) Target: SDSS J102258.41 2026:059:00:07:50 Obsid: 32177 SI: ACIS-I (24 ksec) Target: Perseus cluster 2026:059:07:37:08 Obsid: 32176 SI: ACIS-I (10 ksec) Target: Center of COSMO 2026:059:11:02:47 Obsid: 30305 SI: ACIS-I (20 ksec) Target: Perseus cluster For the weekend: 2026:059:17:34:05 Obsid: 32174 SI: ACIS-S (11 ksec) Target: NGC4654 2026:059:21:12:40 Obsid: 31142 SI: ACIS-I (10 ksec) Target: g12.82-0.02 2026:060:00:34:35 Obsid: 32175 SI: ACIS-S (11 ksec) Target: NGC4654 2026:060:04:13:11 Obsid: 32181 SI: ACIS-I (10 ksec) Target: g12.82-0.02 2026:060:07:33:23 Obsid: 31875 SI: ACIS-I (29 ksec) Target: G292.0+1.8 2026:060:15:55:17 Grating: HETG 2026:060:15:57:44 RADMON Disable 2026:061:03:43:35 Grating: NONE 2026:061:04:02:19 RADMON Enable 2026:061:04:24:37 Obsid: 30017 SI: ACIS-I (14 ksec) Target: [vD2023]1 2026:061:09:10:30 Obsid: 30260 SI: ACIS-I (10 ksec) Target: Center of COSMO 2026:061:12:37:12 Obsid: 32186 SI: ACIS-I (14 ksec) Target: [vD2023]1 NOTES/ISSUES/PROBLEMS --------------------- From the 9am status meeting: 2 Supports Completed in the last 24 hours (Total time: 4.5 hours) 2 SSR dumps Loads good through: 2026:062:05:02:16 Radiation (Solar Activity): Solar activity is expected to be low with a chance for M-class flares on days one, two, and three (27 Feb, 28 Feb, 01 Mar). Radiation (Geophysical Activity): The geomagnetic field is expected to be at quiet to unsettled levels on days one and two (27 Feb, 28 Feb) and unsettled to active levels on day three (01 Mar). MP: Mar0226A loads were approved yesterday. ENG: No issues. GOT: No issues, Quick look data: ---------------- OBSID Target Instr Grat ----- ------ ----- ---- 31147 AT2026dbl ACIS-S NONE 32182 HD 20385 ACIS-S NONE 30303 Perseus cluster ACIS-I NONE 32179 SDSS J102258.41+123429.7 ACIS-S NONE Next Comms: ----------- Support (GMT) BOT EOT Station Site Track time (local) --------------- ---- ---- --------- --------- ------------------------- 058/1030-1300 1115 1245 DSS-24 GOLDSTONE 0615-0745 EST, Fri 27 Feb 059/0245-0445 0330 0430 DSS-54 MADRID 2230-2330 EST, Fri 27 Feb 059/1125-1325 1210 1310 DSS-24 GOLDSTONE 0710-0810 EST, Sat 28 Feb 059/1830-2030 1915 2015 DSS-34 CANBERRA 1415-1515 EST, Sat 28 Feb 060/0245-0445 0330 0430 DSS-56 MADRID 2230-2330 EST, Sat 28 Feb 060/1030-1230 1115 1215 DSS-24 GOLDSTONE 0615-0715 EST, Sun 1 Mar 060/1810-2010 1855 1955 DSS-34 CANBERRA 1355-1455 EST, Sun 1 Mar 061/0105-0305 0150 0250 DSS-65 MADRID 2050-2150 EST, Sun 1 Mar 061/1205-1435 1250 1420 DSS-26 GOLDSTONE 0750-0920 EST, Mon 2 Mar SNAPSHOT summary: ----------------- UTC 2026:058:12:43:02 (Feb27) f_ACE 2.26e+01 F_CRM 0.00e+00 Kp 2.0 R km 63098A OBT 2026:058:12:40:27 CTUVCDU 3943935 OBC s/w NRML FMT2_NORM CPEstat NORM OBT 888583227.78 ONLVCDU 3943928 OBC Errs 0 OBSID 30304 EPState SUN SIM TTpos 92903 HETG Angle 77.59 PCADMODE NPNT RA 49.932 Bus V 26.95 SIM FApos -535 LETG Angle 76.09 PCONTROL NPNT Dec 41.531 Bus I 21.86 AOFSTAR GUID Roll 282.012 ACA Object FFFSSSSS Dither ENAB HRC-I HV OFF ACA ImFunc TTTTTTTT Dith Yang -14.82 Yaw Rate 0.16 HRC-S HV OFF ACA CCD Temp -6.9 Dith Zang -9.17 Pitch Rate -0.08 SHLD HV 0.0 ACA Int Time 1.698 Roll Rate -0.05 EVT RT 6374 AOACSTAT OK FSS SunBeta SUN SHLD RT 0 FSS Alfa 7.58 Batt 1 SOC 100.00% Avg HRMA Temp 73.68 FSS Beta 8.95 Batt 2 SOC 100.00% A -15 V -0.62 Avg OBA Temp 81.29 SA Resolv 80.50 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 10.83 A +24 V 0.00 HRMA power 31.50 SCS 128 ACT -Y SA Amps 10.63 OBA power 0.00 SCS 129 ACT +Y SA Temp 114.51 SCS 130 ACT -Y SA Temp 114.20 ACIS Stat7-0 6 Roll Mom. 9.418 SCS 131 ACT Cold Rad -118. Pitch Mom. 5.299 SCS 132 ACT Ephin Temp 0.0000 Warm Rad -79.6 Yaw Mom. 6.573 SCS 133 ACT EIO Temp 0.0000 RadMon ENAB PMTANKP 148.534 SCS 107 INAC EPH temp 147.16 UpLCmdAcc 5472 IRU2G2 curr 127.20 M Unload MON Cmd Rej A 154 IRU2G1 curr 93.60 Roll Bias 1.9984 TSC Move STOP Prop. line 03 123.15 Pitch Bias -4.1697 FA Move STOP CTX B PWR 36.92 Prop. line 04 116.70 Yaw Bias -1.8278 OTG Move DISA CTX B Volts 3.54 UTC 2026:058:13:59:02 (Feb27) f_ACE 1.48e+01 F_CRM 0.00e+00 Kp 2.0 R km 72534A Currently scheduled FPSI, OTG : HRC-S NONE Estimated Kp : 2.0 ACE EPAM P3 Proton Flux (p/cm^2-s-sr-MeV) : 1.28e+01 GOES-R P4 flux, in RADMON P4GM units : 2.10e-02 GOES-R P7 flux, in RADMON P41GM units : 2.84e-03 GOES-R E > 2.0 MeV flux (p/cm^2-s-sr) : 7.00e+03 Orbit Start Time : 2026:058:08:03:08 Geocentric Distance (km), Orbit Leg : 72051 A CRM Region : 3 (Magnetosphere) External Proton Flux (p/cm^2-s-sr-MeV) : 5.7947e+03 Attenuated Proton Flux (p/cm^2-s-sr-MeV) : 0.0000e+00 External Proton Orbital Fluence (p/cm^2-sr-MeV) : 5.1240e+07 Attenuated Proton Orbital Fluence (p/cm^2-sr-MeV) : 0.0000e+00