See https://cxc.harvard.edu/mta/SOT_reports/sot-shift.html Shift L9800. Start at 141:13:12 GMT PLAN ---- Finish: Obsid: 31373 SI: ACIS-S (15 ksec) Target: E0102-72.3 Then: 2026:141:15:39:52 Obsid: 31377 SI: ACIS-I (35 ksec) Target: E0102-72.3 2026:142:01:57:31 Obsid: 32349 SI: ACIS-S (16 ksec) Target: MASTER J1449-32 2026:142:07:10:45 Obsid: 30511 SI: ACIS-I (31 ksec) Target: BOSS1348 NOTES/ISSUES/PROBLEMS --------------------- From the 9am status meeting: 2 Supports Completed in the last 24 hours (Total time: 3.8 hours) 3 SSR dumps Radiation (Solar Activity): Solar activity is expected to be low with a slight chance for an M-class flare on day one (21 May) and expected to be low with a chance for M-class flares on days two and three (22 May, 23 May). Radiation (Geophysical Activity): The geomagnetic field is expected to be at quiet to unsettled levels on day one (21 May), quiet to active levels on day two (22 May) and quiet levels on day three (23 May). MP: No issues. ENG: No issues. GOT: No issues. Quick look data: ---------------- OBSID Target Instr Grat ----- ------ ----- ---- 31372 E0102-72.3 ACIS-I NONE 31395 SNR G21.5-0.9 HRC-I NONE 30086 TV Cassiopeia ACIS-S HETG Next Comms: ----------- Support (GMT) BOT EOT Station Site Track time (local) --------------- ---- ---- --------- --------- ------------------------- 141/1905-2105 1950 2050 DSS-65 MADRID 1550-1650 EDT, Thu 21 May 142/0045-0245 0130 0230 DSS-65 MADRID 2130-2230 EDT, Thu 21 May 142/0915-1115 1000 1100 DSS-24 GOLDSTONE 0600-0700 EDT, Fri 22 May 142/1630-1830 1715 1815 DSS-34 CANBERRA 1315-1415 EDT, Fri 22 May 142/2345-0145 0030 0130 DSS-65 MADRID 2030-2130 EDT, Fri 22 May SNAPSHOT summary: ----------------- UTC 2026:141:10:59:02 (May21) f_ACE 9.57e+00 F_CRM 8.93e+06 Kp 2.0 R km 143446A OBT 2026:141:10:55:58 CTUVCDU 15127423 OBC s/w NRML FMT2_NORM CPEstat NORM OBT 895748158.92 ONLVCDU 15127416 OBC Errs 0 OBSID 31373 EPState SUN SIM TTpos 75241 HETG Angle 77.59 PCADMODE NMAN RA 172.640 Bus V 27.42 SIM FApos -467 LETG Angle 76.09 PCONTROL NPNT Dec -75.391 Bus I 20.05 AOFSTAR GUID Roll 282.494 ACA Object SSSSSSSS Dither ENAB HRC-I HV OFF ACA ImFunc SSSSSSSS Dith Yang -8.31 Yaw Rate 171.20 HRC-S HV OFF ACA CCD Temp -5.4 Dith Zang -15.85 Pitch Rate 133.84 SHLD HV 0.0 ACA Int Time 1.698 Roll Rate 159.92 EVT RT 6119 AOACSTAT OK FSS SunBeta SUN SHLD RT 0 FSS Alfa 6.37 Batt 1 SOC 100.00% Avg HRMA Temp 73.46 FSS Beta -26.05 Batt 2 SOC 100.00% A -15 V -0.62 Avg OBA Temp 81.61 SA Resolv 116.66 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 10.06 A +24 V 0.00 HRMA power 61.40 SCS 128 ACT -Y SA Amps 9.86 OBA power 35.10 SCS 129 ACT +Y SA Temp 109.58 SCS 130 ACT -Y SA Temp 108.97 ACIS Stat7-0 6 Roll Mom. 5.275 SCS 131 ACT Cold Rad -115. Pitch Mom. 3.956 SCS 132 ACT Ephin Temp 0.0000 Warm Rad -77.1 Yaw Mom. 0.355 SCS 133 ACT EIO Temp 0.0000 RadMon ENAB PMTANKP 148.534 SCS 107 INAC EPH temp 178.27 UpLCmdAcc 44633 IRU2G2 curr 124.80 M Unload MON Cmd Rej A 26 IRU2G1 curr 96.00 Roll Bias 2.0280 TSC Move STOP Prop. line 03 105.75 Pitch Bias -4.2115 FA Move STOP CTX B PWR 36.96 Prop. line 04 105.75 Yaw Bias -1.8412 OTG Move DISA CTX B Volts 3.54 UTC 2026:141:13:12:02 (May21) f_ACE 1.07e+01 F_CRM 9.12e+06 Kp 2.0 R km 144518A Currently scheduled FPSI, OTG : ACIS-S NONE Estimated Kp : 0.3 ACE EPAM P3 Proton Flux (p/cm^2-s-sr-MeV) : 1.00e+01 GOES-R P4 flux, in RADMON P4GM units : 0.00e+00 GOES-R P7 flux, in RADMON P41GM units : 2.83e-03 GOES-R E > 2.0 MeV flux (p/cm^2-s-sr) : 1.76e+03 Orbit Start Time : 2026:140:07:30:47 Geocentric Distance (km), Orbit Leg : 144509 A CRM Region : 3 (Magnetosphere) External Proton Flux (p/cm^2-s-sr-MeV) : 4.1539e+01 Attenuated Proton Flux (p/cm^2-s-sr-MeV) : 4.1539e+01 External Proton Orbital Fluence (p/cm^2-sr-MeV) : 1.0041e+08 Attenuated Proton Orbital Fluence (p/cm^2-sr-MeV) : 9.1209e+06