See https://cxc.harvard.edu/mta/SOT_reports/sot-shift.html Shift L8680. Start at 117:13:00 GMT PLAN ---- Start in radiation zone Then: 2023:117:22:17:50 Grating: NONE 2023:117:22:36:16 RADMON Enable 2023:117:22:57:11 Obsid: 27818 SI: ACIS-S (15 ksec) Target: ACO S 780 2023:118:03:10:45 Grating: LETG 2023:118:03:51:12 Obsid: 24466 SI: HRC-S (14 ksec) Target: MR 2251-178 2023:118:07:52:01 Grating: NONE 2023:118:08:31:19 Obsid: 27819 SI: ACIS-S (17 ksec) Target: ACO S 780 NOTES/ISSUES/PROBLEMS --------------------- From the 9am status meeting: 3 Supports Completed in the last 24 hours (Total time: 6.6 hours) 2 SSR dumps Loads good through: 2023:120:21:34:00.000 CAPs: - 1669, 117/0417z, Enable SCS 134 following SCS 107 Run Whenever SCS 107 runs, the Science SCSs (131-135) are terminated and disabled by way of SCS 123. Before the resumption of HRC observing, SCS 134 (which is required in order to power on the 15V LVPS) must be enabled. DSN DR's: DSS-26, Transmitter RED, Exciter issue, Downlink only Radiation: Early this morning an M-class event and an associated CME were observed in the northeast quadrant. The CME appears to be heading mostly away from Earth. 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, two, and three (27 Apr, 28 Apr, 29 Apr). MP: May0123 loads will be out today or tomorrow. ENG: No issues. GOT: No issues. Quick look data: ---------------- OBSID Target Instr Grat ----- ------ ----- ---- 27709 AM2126-601 ACIS-S NONE 26976 XTE J1701-462 ACIS-S NONE Next Comms: ----------- Support (GMT) BOT EOT Station Site Track time (local) --------------- ---- ---- --------- --------- ------------------------- 118/1020-1235 1120 1220 DSS-26 GOLDSTONE 0720-0820 EDT, Fri 28 Apr 118/1550-1805 1650 1750 DSS-34 CANBERRA 1250-1350 EDT, Fri 28 Apr SNAPSHOT summary: ----------------- UTC 2023:117:11:58:02 (Apr27) f_ACE 2.55e+01 F_CRM 0.00e+00 Kp 2.7 R km 69098D OBT 2023:117:11:54:51 CTUVCDU 6608767 OBC s/w NRML FMT2_NORM CPEstat NORM OBT 798983691.56 ONLVCDU 6608760 OBC Errs 0 OBSID 27744 EPState SUN SIM TTpos 91711 HETG Angle 77.96 PCADMODE NPNT RA 137.721 Bus V 27.73 SIM FApos -535 LETG Angle 76.09 PCONTROL NPNT Dec -4.229 Bus I 22.63 AOFSTAR GUID Roll 256.987 ACA Object FFFSSSSS Dither ENAB HRC-I HV OFF ACA ImFunc TTTTTTTT Dith Yang -7.11 Yaw Rate -0.23 HRC-S HV OFF ACA CCD Temp -5.4 Dith Zang -5.75 Pitch Rate 0.18 SHLD HV 0.0 ACA Int Time 1.698 Roll Rate -0.44 EVT RT 4844 AOACSTAT OK FSS SunBeta SUN SHLD RT 0 FSS Alfa -0.76 Batt 1 SOC 100.00% Avg HRMA Temp 72.99 FSS Beta -14.32 Batt 2 SOC 100.00% A -15 V -0.62 Avg OBA Temp 67.57 SA Resolv 104.49 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 11.41 A +24 V 0.00 HRMA power 71.00 SCS 128 ACT -Y SA Amps 11.02 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. -19.841 SCS 131 ACT Cold Rad -120. Pitch Mom. -11.817 SCS 132 ACT Ephin Temp 0.0000 Warm Rad -77.1 Yaw Mom. 14.146 SCS 133 ACT EIO Temp 0.0000 RadMon ENAB PMTANKP 145.336 SCS 107 INAC EPH temp 178.27 UpLCmdAcc 54129 IRU2G2 curr 117.60 M Unload MON Cmd Rej A 175 IRU2G1 curr 96.00 Roll Bias 1.2600 TSC Move STOP Prop. line 03 155.32 Pitch Bias -3.3324 FA Move STOP CTX A PWR 36.38 Prop. line 04 131.94 Yaw Bias -1.7236 OTG Move DISA CTX A Volts 3.52 UTC 2023:117:13:05:01 (Apr27) f_ACE 2.75e+01 F_CRM 0.00e+00 Kp 2.7 R km 59221D Currently scheduled FPSI, OTG : HRC-S NONE Estimated Kp : 2.7 ACE EPAM P3 Proton Flux (p/cm^2-s-sr-MeV) : 2.75e+01 GOES-R P4 flux, in RADMON P4GM units : 2.700 GOES-R P7 flux, in RADMON P41GM units : 0.006 GOES-R E > 2.0 MeV flux (p/cm^2-s-sr) : 1270.0 Orbit Start Time : 0.018 Geocentric Distance (km), Orbit Leg : 59374 D CRM Region : 3 (Magnetosphere) External Proton Flux (p/cm^2-s-sr-MeV) : 1.2605e+03 Attenuated Proton Flux (p/cm^2-s-sr-MeV) : 0.0000e+00 External Proton Orbital Fluence (p/cm^2-sr-MeV) : 3.7942e+05 Attenuated Proton Orbital Fluence (p/cm^2-sr-MeV) : 0.0000e+00