See http://cxc.harvard.edu/mta/SOT_reports/sot-shift.html Shift L7705. Start at 238:13:00 GMT PLAN ---- Developing a plan to resume science following yesterday's HRC anomaly. NOTES/ISSUES/PROBLEMS --------------------- From the 9am status meeting: 3 Supports completed in the last 24 hours (total time: 7.2 hours) 4 SSR dumps 6 CAPs: - 3 instances of CAP 1510, DSN Outage Deadman Load, Part 2 Only at 237/1427z, 237/2157z, 238/0248z - 893B, 237/2200z, DISA SCS 29 Post 107 Run Day 237 - 1230G, 237/2203z, Manual ObsID Change to 65528 Post 107 Run - 1540, 238/0248z, Power on 3 FEPs to prevent ACIS electronics from becoming too cold Radiation: Solar activity is expected to be very low on days one, two, and three (25 Aug, 26 Aug, 27 Aug). MP: On hold for resumption of science. Eng: There was an HRC anomaly yesterday, the instrument is now turned off, SCS 107 was executed manually to safe HRC. Thermal caution low violations start showing up, this is expected and monitored. HRC is monitoring temperatures and working to develop a plan to reset the instrument in a controlled way. GOT: No issues. Quick look data: ---------------- OBSID Target Instr Grat ----- ------ ----- ---- 22652 COBRA141155.2+341510 ACIS-S NONE Next Comms: ----------- Support (GMT) BOT EOT Station Site Track time (local) --------------- ---- ---- --------- --------- ------------------------- 238/1145-1400 1245 1345 DSS-34 CANBERRA 0845-0945 EDT, Tue 25 Aug 238/1610-1825 1655 1755 DSS-65 MADRID 1255-1355 EDT, Tue 25 Aug 239/0045-0300 0145 0245 DSS-26 GOLDSTONE 2145-2245 EDT, Tue 25 Aug 239/1020-1235 1120 1220 DSS-26 GOLDSTONE 0720-0820 EDT, Wed 26 Aug 239/1720-1935 1805 1845 DSS-65 MADRID 1405-1445 EDT, Wed 26 Aug SNAPSHOT summary: ---------------- UTC 2020:238:12:58:02 (Aug25) f_ACE 0.00e+00 F_CRM 1.00e+00 Kp 0.0 R km 114580A OBT 2020:238:12:57:35 CTUVCDU 14192945 OBC s/w NRML FMT2_SSR CPEstat NORM OBT 714747455.23 ONLVCDU 14192944 OBC Errs 0 OBSID 65528 EPState SUN SIM TTpos -99616 HETG Angle 78.34 PCADMODE NPNT RA 260.746 Bus V 28.83 SIM FApos -467 LETG Angle 76.46 PCONTROL NPNT Dec 65.877 Bus I 22.11 AOFSTAR GUID Roll 250.659 ACA Object SSSSSSSS Dither ENAB HRC-I HV ON ACA ImFunc NNNTTTTT Dith Yang -7.70 Yaw Rate 0.02 HRC-S HV ON ACA CCD Temp -13.0 Dith Zang 2.48 Pitch Rate 0.13 SHLD HV 15.0 ACA Int Time 1.698 Roll Rate 0.09 EVT RT 36 AOACSTAT OK FSS SunBeta SUN SHLD RT 31 FSS Alfa -0.09 Batt 1 SOC 100.00% Avg HRMA Temp 71.56 FSS Beta 2.78 Batt 2 SOC 100.00% ACIS Stat7-0 66 Avg OBA Temp 62.39 SA Resolv 86.94 Batt 3 SOC 100.00% Cold Rad -127.9 OBA Tavg Fault NFLT SA Sun Pres ILLM Warm Rad -84.4 OBA Trng Fault NFLT +Y SA Amps 11.02 RadMon DISA HRMA power 33.00 SCS 128 ACT -Y SA Amps 10.83 OBA power 8.10 SCS 129 ACT +Y SA Temp 111.12 SCS 130 INAC -Y SA Temp 111.12 Roll Mom. -13.086 SCS 131 DISA Pitch Mom. 13.022 SCS 132 DISA Ephin Temp 0.0000 UpLCmdAcc 1663 Yaw Mom. -2.914 SCS 133 DISA EIO Temp 0.0000 Cmd Rej A 135 PMTANKP 126.152 SCS 107 DISA EPH temp 147.16 IRU2G2 curr 110.40 M Unload MON IRU2G1 curr 93.60 Roll Bias 0.4036 TSC Move STOP Prop. line 03 142.92 Pitch Bias -2.4427 CTX B PWR 36.69 FA Move STOP Prop. line 04 108.63 Yaw Bias -1.4889 CTX B Volts 3.54 OTG Move DISA UTC 2020:238:12:58:02 (Aug25) f_ACE 0.00e+00 F_CRM 1.00e+00 Kp 0.0 R km 114580A Currently scheduled FPSI, OTG : HRC-S NONE Estimated Kp : 0.0 ACE EPAM P3 Proton Flux (p/cm^2-s-sr-MeV) : 2.11e+01 GOES-R P4 flux, in RADMON P4GM units : 0.078 GOES-R P7 flux, in RADMON P41GM units : 0.015 GOES-R E > 2.0 MeV flux (p/cm^2-s-sr) : 4.0 Orbit Start Time : 2020:237:22:14:01 Geocentric Distance (km), Orbit Leg : 114329 A CRM Region : 3 (Magnetosphere) External Proton Flux (p/cm^2-s-sr-MeV) : 3.1969e+02 Attenuated Proton Flux (p/cm^2-s-sr-MeV) : 0.0000e+00 External Proton Orbital Fluence (p/cm^2-sr-MeV) : 2.3038e+08 Attenuated Proton Orbital Fluence (p/cm^2-sr-MeV) : 1.7793e+08 Due to transition to GOES-16, what used to be P2 is now P4 and what used to be P5 is now P7 This message will disappear in 01/31/2021