See https://cxc.harvard.edu/mta/SOT_reports/sot-shift.html Shift L9709. Start at 050:14:00 GMT PLAN ---- Finish: Obsid: SI: None, Finished ACIS-S, NONE Target: Then: 2026:050:14:17:51 Obsid: 32169 SI: ACIS-I (10 ksec) Target: Abell 2255 2026:050:17:36:14 Obsid: 31995 SI: ACIS-S (14 ksec) Target: NGC3626 2026:050:22:07:32 Obsid: 31121 SI: ACIS-S (10 ksec) Target: ZTF J1905+3134 2026:051:01:31:15 Obsid: 30307 SI: ACIS-I (30 ksec) Target: Perseus cluster 2026:051:10:49:02 Obsid: 32167 SI: ACIS-I (10 ksec) Target: Center of COSMO NOTES/ISSUES/PROBLEMS --------------------- From the 9am status meeting: 3 Supports Completed in the last 24 hours (Total time: 6 hours) 3 SSR dumps Loads good through: 2026:054:01:55:44 Radiation (Solar Activity): Solar activity is likely to be low with a slight chance for an M-class flare on day one (19 Feb) and expected to be low with a slight chance for an M-class flare on days two and three (20 Feb, 21 Feb). Radiation (Geophysical Activity): The geomagnetic field is expected to be at quiet to active levels on day one (19 Feb), quiet to unsettled levels on day two (20 Feb) and quiet levels on day three (21 Feb). MP: Feb2326A load review by 1pm today. ENG: No issues. GOT: NO issues. Quick look data: ---------------- OBSID Target Instr Grat ----- ------ ----- ---- 30425 Abell 2255 ACIS-I NONE 31008 NGC4207 ACIS-S NONE 32171 NGC3626 ACIS-S NONE 26972 70 OPH HRC-I NONE 30422 Abell 2255 ACIS-I NONE 31994 NGC3626 ACIS-S NONE 31895 ArLac HRC-I NONE Next Comms: ----------- Support (GMT) BOT EOT Station Site Track time (local) --------------- ---- ---- --------- --------- ------------------------- 050/1130-1330 1215 1315 DSS-26 GOLDSTONE 0715-0815 EST, Thu 19 Feb 051/0215-0415 0300 0400 DSS-56 MADRID 2200-2300 EST, Thu 19 Feb 051/1110-1310 1155 1255 DSS-24 GOLDSTONE 0655-0755 EST, Fri 20 Feb 051/1905-2105 1950 2050 DSS-34 CANBERRA 1450-1550 EST, Fri 20 Feb SNAPSHOT summary: ----------------- UTC 2026:050:13:14:02 (Feb19) f_ACE 1.08e+01 F_CRM 0.00e+00 Kp 1.7 R km 54358A OBT 2026:050:13:11:42 CTUVCDU 1253887 OBC s/w NRML FMT2_NORM CPEstat NORM OBT 887893902.91 ONLVCDU 1253880 OBC Errs 0 OBSID 41707 EPState SUN SIM TTpos -99616 HETG Angle 5.59 PCADMODE NPNT RA 265.606 Bus V 26.64 SIM FApos -467 LETG Angle 76.09 PCONTROL NPNT Dec 19.502 Bus I 25.20 AOFSTAR GUID Roll 61.999 ACA Object SSSSSSSS Dither ENAB HRC-I HV OFF ACA ImFunc TTTTTTTT Dith Yang 15.99 Yaw Rate -0.03 HRC-S HV OFF ACA CCD Temp -5.4 Dith Zang 14.15 Pitch Rate -0.16 SHLD HV 0.0 ACA Int Time 1.698 Roll Rate -0.20 EVT RT 4844 AOACSTAT OK FSS SunBeta SUN SHLD RT 0 FSS Alfa 8.54 Batt 1 SOC 100.00% Avg HRMA Temp 74.11 FSS Beta 17.05 Batt 2 SOC 100.00% A -15 V -0.62 Avg OBA Temp 85.95 SA Resolv 72.33 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 12.37 A +24 V 0.00 HRMA power 31.50 SCS 128 ACT -Y SA Amps 12.18 OBA power 0.00 SCS 129 ACT +Y SA Temp 114.81 SCS 130 ACT -Y SA Temp 113.89 ACIS Stat7-0 6 Roll Mom. -6.267 SCS 131 ACT Cold Rad -120. Pitch Mom. -1.858 SCS 132 ACT Ephin Temp 0.0000 Warm Rad -79.6 Yaw Mom. 8.092 SCS 133 ACT EIO Temp 0.0000 RadMon DISA PMTANKP 150.132 SCS 107 INAC EPH temp 169.78 UpLCmdAcc 52494 IRU2G2 curr 124.80 M Unload MON Cmd Rej A 30 IRU2G1 curr 93.60 Roll Bias 1.9871 TSC Move STOP Prop. line 03 168.93 Pitch Bias -4.1715 FA Move STOP CTX B PWR 36.92 Prop. line 04 136.33 Yaw Bias -1.8179 OTG Move DISA CTX B Volts 3.54 UTC 2026:050:13:53:02 (Feb19) f_ACE 9.59e+00 F_CRM 0.00e+00 Kp 1.7 R km 59829A Currently scheduled FPSI, OTG : HRC-S HETG Estimated Kp : 1.7 ACE EPAM P3 Proton Flux (p/cm^2-s-sr-MeV) : 9.37e+00 GOES-R P4 flux, in RADMON P4GM units : 2.04e-02 GOES-R P7 flux, in RADMON P41GM units : 8.39e-03 GOES-R E > 2.0 MeV flux (p/cm^2-s-sr) : 2.19e+03 Orbit Start Time : 2026:050:09:37:43 Geocentric Distance (km), Orbit Leg : 59212 A CRM Region : 3 (Magnetosphere) External Proton Flux (p/cm^2-s-sr-MeV) : 6.1501e+03 Attenuated Proton Flux (p/cm^2-s-sr-MeV) : 0.0000e+00 External Proton Orbital Fluence (p/cm^2-sr-MeV) : 1.2941e+07 Attenuated Proton Orbital Fluence (p/cm^2-sr-MeV) : 0.0000e+00