See https://cxc.harvard.edu/mta/SOT_reports/sot-shift.html Shift L7950. Start at 117:13:00 GMT PLAN ---- Finish: Obsid: 22946 SI: HRC-S (24 ksec) Target: H1821+643 Then: 2021:117:16:05:15 RADMON Disable 2021:117:22:23:49 Grating: NONE 2021:118:03:18:25 RADMON Enable 2021:118:03:42:44 Obsid: 24608 SI: ACIS-I (25 ksec) Target: A1795 2021:118:10:42:58 Grating: LETG 2021:118:11:07:58 Obsid: 25013 SI: HRC-S (25 ksec) Target: H1821+643 NOTES/ISSUES/PROBLEMS --------------------- From the 9am status meeting: 3 Supports completed in the last 24 hours (total time: 6.8 hours) 3 SSR dumps Radiation: Solar activity is likely to be low with a slight chance for an M-class flare on days one and two (27 Apr, 28 Apr) and expected to be very low with a chance for a C-class flares on day three (29 Apr). MP: May0321 loads are in work. Eng: No issues. GOT: No issues. Quick look data: ---------------- OBSID Target Instr Grat ----- ------ ----- ---- 23050 G104.52+01.24 ACIS-I NONE 24352 3c 297 ACIS-S NONE 24609 A1795 ACIS-S NONE 24607 A1795 ACIS-I NONE 23465 M82 X-2 HRC-I NONE Next Comms: ----------- Support (GMT) BOT EOT Station Site Track time (local) --------------- ---- ---- --------- --------- ------------------------- 117/1625-1840 1725 1825 DSS-65 MADRID 1325-1425 EDT, Tue 27 Apr 118/0055-0310 0155 0255 DSS-54 MADRID 2155-2255 EDT, Tue 27 Apr 118/1205-1420 1305 1405 DSS-24 GOLDSTONE 0905-1005 EDT, Wed 28 Apr 118/1845-2100 1945 2045 DSS-36 CANBERRA 1545-1645 EDT, Wed 28 Apr SNAPSHOT summary: ---------------- UTC 2021:117:11:23:02 (Apr27) f_ACE 1.94e+01 F_CRM 1.00e+00 Kp 1.3 R km 91476D OBT 2021:117:11:20:09 CTUVCDU 12890879 OBC s/w NRML FMT1_NORM CPEstat NORM OBT 735909609.78 ONLVCDU 12890872 OBC Errs 0 OBSID 22946 EPState SUN SIM TTpos -99616 HETG Angle 77.96 PCADMODE NPNT RA 275.528 Bus V 28.36 SIM FApos -990 LETG Angle 4.09 PCONTROL NPNT Dec 64.337 Bus I 24.94 AOFSTAR GUID Roll 121.965 ACA Object FFFSSSSS Dither ENAB HRC-I HV OFF ACA ImFunc TTTTTTTT Dith Yang 15.94 Yaw Rate 0.49 HRC-S HV ON ACA CCD Temp -10.8 Dith Zang 0.61 Pitch Rate 0.12 SHLD HV 8.0 ACA Int Time 1.698 Roll Rate 0.19 EVT RT 255 AOACSTAT OK FSS SunBeta SUN SHLD RT 4589 FSS Alfa -0.14 Batt 1 SOC 100.00% Avg HRMA Temp 72.29 FSS Beta 0.26 Batt 2 SOC 100.00% ACIS Stat7-0 65 Avg OBA Temp 60.36 SA Resolv 89.48 Batt 3 SOC 100.00% Cold Rad -120.7 OBA Tavg Fault NFLT SA Sun Pres ILLM Warm Rad -79.6 OBA Trng Fault NFLT +Y SA Amps 12.56 RadMon ENAB HRMA power 29.90 SCS 128 ACT -Y SA Amps 12.18 OBA power 70.20 SCS 129 ACT +Y SA Temp 112.66 SCS 130 ACT -Y SA Temp 112.35 Roll Mom. 9.032 SCS 131 ACT Pitch Mom. -12.281 SCS 132 ACT Ephin Temp 0.0000 UpLCmdAcc 16434 Yaw Mom. 1.334 SCS 133 ACT EIO Temp 0.0000 Cmd Rej A 126 PMTANKP 134.145 SCS 107 INAC EPH temp 152.81 IRU2G2 curr 110.40 M Unload MON IRU2G1 curr 93.60 Roll Bias 0.6263 TSC Move STOP Prop. line 03 115.08 Pitch Bias -2.6660 CTX A PWR 36.32 FA Move STOP Prop. line 04 85.71 Yaw Bias -1.5672 CTX A Volts 3.52 OTG Move DISA UTC 2021:117:13:02:01 (Apr27) f_ACE 2.42e+01 F_CRM 1.00e+00 Kp 1.3 R km 81399D Currently scheduled FPSI, OTG : HRC-S LETG Estimated Kp : 1.3 ACE EPAM P3 Proton Flux (p/cm^2-s-sr-MeV) : 2.42e+01 GOES-R P4 flux, in RADMON P4GM units : 0.059 GOES-R P7 flux, in RADMON P41GM units : 0.010 GOES-R E > 2.0 MeV flux (p/cm^2-s-sr) : 175.0 Orbit Start Time : 2021:115:05:19:01 Geocentric Distance (km), Orbit Leg : 81725 D CRM Region : 3 (Magnetosphere) External Proton Flux (p/cm^2-s-sr-MeV) : 5.5409e+02 Attenuated Proton Flux (p/cm^2-s-sr-MeV) : 0.0000e+00 External Proton Orbital Fluence (p/cm^2-sr-MeV) : 2.6780e+08 Attenuated Proton Orbital Fluence (p/cm^2-sr-MeV) : 1.5148e+08