See https://cxc.harvard.edu/mta/SOT_reports/sot-shift.html Shift L9402. Start at 108:12:54 GMT PLAN ---- Start in radiation zone Then: 2025:108:17:20:27 Grating: NONE 2025:108:17:42:56 RADMON Enable 2025:108:18:00:48 Obsid: 30112 SI: ACIS-S (10 ksec) Target: GW170817 2025:108:22:13:21 Obsid: 28762 SI: ACIS-I (10 ksec) Target: Trumpler 3 2025:109:02:25:43 Obsid: 30903 SI: ACIS-S (10 ksec) Target: GW170817 2025:109:06:37:11 Obsid: 30897 SI: ACIS-I (10 ksec) Target: Trumpler 3 2025:109:10:48:29 Obsid: 30904 SI: ACIS-S (10 ksec) Target: GW170817 For the weekend: 2025:109:15:00:42 Obsid: 30898 SI: ACIS-I (10 ksec) Target: Trumpler 3 2025:109:19:07:00 Obsid: 28728 SI: ACIS-I (12 ksec) Target: [JDW2009] G359. 2025:109:23:09:25 Obsid: 30457 SI: HRC-I (9 ksec) Target: HE 1353-1917 2025:110:02:54:45 Obsid: 30901 SI: ACIS-I (15 ksec) Target: NGC1977 point 2025:110:07:32:08 Obsid: 28681 SI: ACIS-I (37 ksec) Target: Abell 754 2025:110:18:35:56 Obsid: 30896 SI: ACIS-I (16 ksec) Target: [JDW2009] G359. 2025:110:23:19:17 Grating: HETG 2025:110:23:21:43 RADMON Disable NOTES/ISSUES/PROBLEMS --------------------- From the 9am status meeting: 3 Supports Completed in the last 24 hours (Total time: 5.5 hours) 3 SSR dumps The Operations Control Center (OCC) was impacted on Apr 16 by a failure of the internet connection between the OCC and CXC facilities in Cambridge as well as to the general internet. The outage, caused by a cut fiber line external to CXC facilities, was repaired by the service provider within 24 hours. The OCC's link to the Deep Space Network remained nominal throughout and there was no impact to spacecraft operations and no interruption of the science program. Radiation: Solar activity is likely to be moderate with a slight chance for an X-class flare on days one, two, and three (18 Apr, 19 Apr, 20 Apr). MP: APR2125A command load out for review. Special instructions in regards to the OCC remote connection issues can now be ignored. ENG: No issues. GOT: No issues. Quick look data: ---------------- OBSID Target Instr Grat ----- ------ ----- ---- 30895 RXCJ1314.4-2515 ACIS-I NONE 30900 NGC1977 point ACIS-I NONE 28695 RXCJ1314.4-2515 ACIS-I NONE 30899 NGC1977 point ACIS-I NONE Next Comms: ----------- Support (GMT) BOT EOT Station Site Track time (local) --------------- ---- ---- --------- --------- ------------------------- 108/1600-1800 1645 1745 DSS-54 MADRID 1245-1345 EDT, Fri 18 Apr 109/0120-0255 0155 0240 DSS-65 MADRID 2155-2240 EDT, Fri 18 Apr 109/1000-1200 1045 1145 DSS-26 GOLDSTONE 0645-0745 EDT, Sat 19 Apr 109/1530-1730 1615 1715 DSS-26 GOLDSTONE 1215-1315 EDT, Sat 19 Apr 110/0145-0345 0230 0330 DSS-65 MADRID 2230-2330 EDT, Sat 19 Apr 110/0945-1145 1030 1130 DSS-54 MADRID 0630-0730 EDT, Sun 20 Apr 110/1905-2105 1950 2050 DSS-34 CANBERRA 1550-1650 EDT, Sun 20 Apr 111/0130-0325 0215 0310 DSS-65 MADRID 2215-2310 EDT, Sun 20 Apr 111/1025-1225 1110 1210 DSS-24 GOLDSTONE 0710-0810 EDT, Mon 21 Apr 111/1920-2120 2005 2105 DSS-65 MADRID 1605-1705 EDT, Mon 21 Apr SNAPSHOT summary: ----------------- UTC 2025:108:11:39:01 (Apr18) f_ACE 2.50e+02 F_CRM 6.76e+02 Kp 1.7 R km 45185D OBT 2025:108:11:36:31 CTUVCDU 15160703 OBC s/w NRML FMT2_NORM CPEstat NORM OBT 861363391.54 ONLVCDU 15160696 OBC Errs 0 OBSID 42478 EPState SUN SIM TTpos -99616 HETG Angle 5.59 PCADMODE NPNT RA 194.999 Bus V 27.11 SIM FApos -467 LETG Angle 76.09 PCONTROL NPNT Dec -17.006 Bus I 22.37 AOFSTAR GUID Roll 297.816 ACA Object SSSSSSSS Dither ENAB HRC-I HV OFF ACA ImFunc TTTTTTTT Dith Yang 15.94 Yaw Rate 0.11 HRC-S HV OFF ACA CCD Temp -4.3 Dith Zang 13.87 Pitch Rate -0.11 SHLD HV 0.0 ACA Int Time 1.698 Roll Rate -0.01 EVT RT 6119 AOACSTAT OK FSS SunBeta NSUN SHLD RT 0 FSS Alfa -49.57 Batt 1 SOC 100.00% Avg HRMA Temp 73.57 FSS Beta -49.72 Batt 2 SOC 100.00% A -15 V -0.62 Avg OBA Temp 85.95 SA Resolv 167.41 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 11.21 A +24 V 0.00 HRMA power 62.90 SCS 128 INAC -Y SA Amps 10.83 OBA power 0.00 SCS 129 ACT +Y SA Temp 112.97 SCS 130 ACT -Y SA Temp 112.04 ACIS Stat7-0 6 Roll Mom. 8.130 SCS 131 INAC Cold Rad -118. Pitch Mom. 1.342 SCS 132 ACT Ephin Temp 0.0000 Warm Rad -77.1 Yaw Mom. 6.251 SCS 133 ACT EIO Temp 0.0000 RadMon DISA PMTANKP 137.343 SCS 107 INAC EPH temp 149.99 UpLCmdAcc 37733 IRU2G2 curr 117.60 M Unload MON Cmd Rej A 67 IRU2G1 curr 93.60 Roll Bias 1.7984 TSC Move STOP Prop. line 03 118.31 Pitch Bias -3.9443 FA Move STOP CTX B PWR 36.96 Prop. line 04 108.63 Yaw Bias -1.8008 OTG Move DISA CTX B Volts 3.54 UTC 2025:108:12:54:02 (Apr18) f_ACE 2.53e+02 F_CRM 6.86e+02 Kp 1.7 R km 31079D Currently scheduled FPSI, OTG : HRC-S HETG Estimated Kp : 1.7 ACE EPAM P3 Proton Flux (p/cm^2-s-sr-MeV) : 2.52e+02 GOES-R P4 flux, in RADMON P4GM units : 0.019 GOES-R P7 flux, in RADMON P41GM units : 0.011 GOES-R E > 2.0 MeV flux (p/cm^2-s-sr) : 74.7 Orbit Start Time : 0.039 Geocentric Distance (km), Orbit Leg : 32095 D CRM Region : 3 (Magnetosphere) External Proton Flux (p/cm^2-s-sr-MeV) : 6.8650e+02 Attenuated Proton Flux (p/cm^2-s-sr-MeV) : 0.0000e+00 External Proton Orbital Fluence (p/cm^2-sr-MeV) : 2.0595e+05 Attenuated Proton Orbital Fluence (p/cm^2-sr-MeV) : 6.8250e+02