See https://cxc.harvard.edu/mta/SOT_reports/sot-shift.html Shift L9878. Start at 219:13:00 GMT PLAN ---- Start in radiation zone Then: 2026:219:19:56:02 Grating: NONE 2026:219:20:06:08 RADMON Enable 2026:219:20:30:26 Obsid: 30353 SI: ACIS-I (18 ksec) Target: Perseus cluster 2026:220:02:42:22 Obsid: 31054 SI: ACIS-S (12 ksec) Target: GL 783 2026:220:07:54:55 Obsid: 32477 SI: ACIS-I (18 ksec) Target: Perseus cluster For the weekend: 2026:220:14:06:51 Obsid: 32482 SI: ACIS-S (12 ksec) Target: GL 783 2026:220:19:19:23 Obsid: 30358 SI: ACIS-I (18 ksec) Target: Perseus cluster 2026:221:01:31:19 Obsid: 32483 SI: ACIS-S (12 ksec) Target: GL 783 2026:221:06:35:31 Obsid: 32478 SI: ACIS-I (18 ksec) Target: Perseus cluster 2026:221:12:38:53 Obsid: 32484 SI: ACIS-S (14 ksec) Target: GL 783 2026:221:18:16:52 Obsid: 32467 SI: ACIS-I (20 ksec) Target: Perseus cluster 2026:222:00:00:11 Grating: HETG 2026:222:00:02:37 RADMON Disable 2026:222:11:52:37 Grating: NONE 2026:222:12:14:36 RADMON Enable 2026:222:12:35:30 Obsid: 32001 SI: ACIS-S (13 ksec) Target: SDSS J125354.49 NOTES/ISSUES/PROBLEMS --------------------- From the 9am status meeting: 2 Supports Completed in the last 24 hours (Total time: 4.8 hours) 2 SSR dumps Loads good through: 2026:224:07:45:38 Radiation (Solar Activity): Solar activity is expected to be very low with a chance for a C-class flares and a slight chance for an M-class flare on days one and two (07 Aug, 08 Aug) and expected to be very low with a chance for a C-class flares on day three (09 Aug). Radiation (Geophysical Activity): The geomagnetic field is expected to be at quiet to active levels on days one and three (07 Aug, 09 Aug) and quiet to unsettled levels on day two (08 Aug). MP: No issues. ENG: No issues. GOT: No issues. Quick look data: ---------------- OBSID Target Instr Grat ----- ------ ----- ---- None Next Comms: ----------- Support (GMT) BOT EOT Station Site Track time (local) --------------- ---- ---- --------- --------- ------------------------- 219/1150-1410 1225 1355 DSS-36 CANBERRA 0825-0955 EDT, Fri 7 Aug 220/0000-0200 0045 0145 DSS-23 GOLDSTONE 2045-2145 EDT, Fri 7 Aug 220/0745-0935 0820 0920 DSS-24 GOLDSTONE 0420-0520 EDT, Sat 8 Aug 221/0015-0215 0100 0200 DSS-24 GOLDSTONE 2100-2200 EDT, Sat 8 Aug 221/0900-1320 0945 1305 DSS-36 CANBERRA 0545-0905 EDT, Sun 9 Aug SNAPSHOT summary: ----------------- UTC 2026:219:12:54:01 (Aug 7) f_ACE 8.21e+01 F_CRM 5.12e+08 Kp 2.3 R km 105428D OBT 2026:219:12:53:40 CTUVCDU 7899863 OBC s/w NRML FMT2_SSR CPEstat NORM OBT 902494420.21 ONLVCDU 7899856 OBC Errs 1 OBSID 41254 EPState SUN SIM TTpos -99616 HETG Angle 5.59 PCADMODE NPNT RA 22.251 Bus V 27.11 SIM FApos -535 LETG Angle 75.71 PCONTROL NPNT Dec -17.690 Bus I 22.63 AOFSTAR GUID Roll 99.615 ACA Object SSSSSSSS Dither ENAB HRC-I HV OFF ACA ImFunc TTTTTTTT Dith Yang 15.90 Yaw Rate -0.19 HRC-S HV OFF ACA CCD Temp -7.7 Dith Zang 3.78 Pitch Rate 0.03 SHLD HV 0.0 ACA Int Time 1.698 Roll Rate -0.27 EVT RT 6374 AOACSTAT OK FSS SunBeta SUN SHLD RT 0 FSS Alfa -0.20 Batt 1 SOC 95.86% Avg HRMA Temp 73.03 FSS Beta -28.38 Batt 2 SOC 96.29% A -15 V -0.62 Avg OBA Temp 78.88 SA Resolv 117.73 Batt 3 SOC 96.23% 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 11.41 A +24 V 0.00 HRMA power 61.40 SCS 128 ACT -Y SA Amps 11.02 OBA power 35.10 SCS 129 ACT +Y SA Temp 110.51 SCS 130 ACT -Y SA Temp 109.89 ACIS Stat7-0 6 Roll Mom. -14.156 SCS 131 ACT Cold Rad -118. Pitch Mom. -5.819 SCS 132 ACT Ephin Temp 0.0000 Warm Rad -77.1 Yaw Mom. 16.930 SCS 133 ACT EIO Temp 0.0000 RadMon DISA PMTANKP 151.731 SCS 107 INAC EPH temp 126.31 UpLCmdAcc 3292 IRU2G2 curr 120.00 M Unload MON Cmd Rej A 212 IRU2G1 curr 93.60 Roll Bias 2.0606 TSC Move STOP Prop. line 03 115.08 Pitch Bias -4.2494 FA Move STOP CTX B PWR 36.96 Prop. line 04 108.63 Yaw Bias -1.8514 OTG Move DISA CTX B Volts 3.54 UTC 2026:219:12:54:01 (Aug 7) f_ACE 8.21e+01 F_CRM 5.12e+08 Kp 2.3 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 : 2.00e-02 GOES-R P7 flux, in RADMON P41GM units : 2.78e-03 GOES-R E > 2.0 MeV flux (p/cm^2-s-sr) : 2.64e+02 Orbit Start Time : 2026:177:08:08:58 Geocentric Distance (km), Orbit Leg : 33728 D 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