See https://cxc.harvard.edu/mta/SOT_reports/sot-shift.html Shift L9770. Start at 111:13:00 GMT PLAN ---- Finish: Then: 2026:111:13:04:42 Obsid: 30180 SI: ACIS-S (12 ksec) Target: NGC4941 2026:111:17:03:03 Obsid: 30026 SI: ACIS-I (20 ksec) Target: DESI J090.9854- 2026:111:23:09:59 Obsid: 29863 SI: ACIS-S (46 ksec) Target: AM1724-622 NOTES/ISSUES/PROBLEMS --------------------- From the 9am status meeting: 2 Supports Completed in the last 24 hours (Total time: 3.7 hours) 3 SSR dumps 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 (21 Apr, 22 Apr, 23 Apr). Radiation (Geophysical Activity): The geomagnetic field is expected to be at quiet to active levels on day one (21 Apr), quiet to unsettled levels on day two (22 Apr) and quiet levels on day three (23 Apr). MP: APR2726 loads are in work. ENG: No issues. GOT: No issues. Quick look data: ---------------- OBSID Target Instr Grat ----- ------ ----- ---- 29880 SDSS J091934.51+481614.8 ACIS-S NONE 29878 SDSS J141525.26+045602.5 ACIS-S NONE Next Comms: ----------- Support (GMT) BOT EOT Station Site Track time (local) --------------- ---- ---- --------- --------- ------------------------- 112/0305-0505 0350 0450 DSS-54 MADRID 2350-0050 EDT, Tue 21 Apr 112/0915-1115 1000 1100 DSS-65 MADRID 0600-0700 EDT, Wed 22 Apr 112/2105-2305 2150 2250 DSS-54 MADRID 1750-1850 EDT, Wed 22 Apr SNAPSHOT summary: ----------------- UTC 2026:111:11:17:02 (Apr21) f_ACE 1.49e+01 F_CRM 6.40e+06 Kp 2.7 R km 72595A OBT 2026:111:11:14:46 CTUVCDU 5016703 OBC s/w NRML FMT2_NORM CPEstat NORM OBT 893157286.52 ONLVCDU 5016696 OBC Errs 0 OBSID 31864 EPState SUN SIM TTpos 75624 HETG Angle 5.59 PCADMODE NPNT RA 88.043 Bus V 26.79 SIM FApos -467 LETG Angle 75.71 PCONTROL NPNT Dec -7.433 Bus I 27.22 AOFSTAR GUID Roll 252.411 ACA Object FFFSSSSS Dither ENAB HRC-I HV OFF ACA ImFunc TTTTTTTT Dith Yang 15.70 Yaw Rate 0.33 HRC-S HV OFF ACA CCD Temp -6.6 Dith Zang 4.04 Pitch Rate 0.03 SHLD HV 0.0 ACA Int Time 1.698 Roll Rate -0.22 EVT RT 6374 AOACSTAT OK FSS SunBeta SUN SHLD RT 0 FSS Alfa -0.48 Batt 1 SOC 100.00% Avg HRMA Temp 74.00 FSS Beta 27.78 Batt 2 SOC 100.00% A -15 V -0.62 Avg OBA Temp 82.09 SA Resolv 61.77 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 13.91 A +24 V 0.00 HRMA power 42.60 SCS 128 ACT -Y SA Amps 13.33 OBA power 0.00 SCS 129 ACT +Y SA Temp 111.12 SCS 130 ACT -Y SA Temp 110.51 ACIS Stat7-0 6 Roll Mom. 3.732 SCS 131 ACT Cold Rad -120. Pitch Mom. 1.366 SCS 132 ACT Ephin Temp 0.0000 Warm Rad -79.6 Yaw Mom. 4.884 SCS 133 ACT EIO Temp 0.0000 RadMon ENAB PMTANKP 151.731 SCS 107 INAC EPH temp 138.67 UpLCmdAcc 55772 IRU2G2 curr 117.60 M Unload MON Cmd Rej A 29 IRU2G1 curr 96.00 Roll Bias 2.0051 TSC Move STOP Prop. line 03 165.53 Pitch Bias -4.1974 FA Move STOP CTX B PWR 36.92 Prop. line 04 121.54 Yaw Bias -1.8210 OTG Move DISA CTX B Volts 3.54 UTC 2026:111:12:55:01 (Apr21) f_ACE 1.45e+01 F_CRM 6.68e+06 Kp 2.7 R km 83332A Currently scheduled FPSI, OTG : ACIS-S HETG Estimated Kp : 0.7 ACE EPAM P3 Proton Flux (p/cm^2-s-sr-MeV) : 1.69e+01 GOES-R P4 flux, in RADMON P4GM units : 4.07e-02 GOES-R P7 flux, in RADMON P41GM units : 5.56e-03 GOES-R E > 2.0 MeV flux (p/cm^2-s-sr) : 7.05e+02 Orbit Start Time : 2026:111:05:20:11 Geocentric Distance (km), Orbit Leg : 82881 A CRM Region : 3 (Magnetosphere) External Proton Flux (p/cm^2-s-sr-MeV) : 3.1637e+02 Attenuated Proton Flux (p/cm^2-s-sr-MeV) : 6.3274e+01 External Proton Orbital Fluence (p/cm^2-sr-MeV) : 1.0050e+08 Attenuated Proton Orbital Fluence (p/cm^2-sr-MeV) : 6.6788e+06