See https://cxc.harvard.edu/mta/SOT_reports/sot-shift.html Shift L8917. Start at 354:14:00 GMT PLAN ---- Finish: Obsid: 28290 SI: ACIS-S (18 ksec) Target: SDSSJ115229.13 Then: 2023:354:15:30:59 Obsid: 29134 SI: ACIS-S (10 ksec) Target: R Mon 2023:354:19:18:56 Obsid: 29126 SI: ACIS-S (10 ksec) Target: 7C 1754+6737 2023:354:23:43:01 Obsid: 27059 SI: ACIS-I (10 ksec) Target: Orion Nebula Cl 2023:355:02:59:25 Obsid: 27065 SI: ACIS-I (10 ksec) Target: LMC Deep Field 2023:355:06:27:29 Obsid: 29127 SI: ACIS-I (11 ksec) Target: Orion Nebula Cl 2023:355:09:39:42 Grating: HETG 2023:355:09:42:08 RADMON Disable NOTES/ISSUES/PROBLEMS --------------------- From the 9am status meeting: 3 Supports Completed in the last 24 hours (Total time: 6.9 hours) 3 SSR dumps DSN DR's Created: DR Number| Station| Problem| Cause| Action ---|---|---|---|--- [G124181]DSS-24| Intermittent Telemetry|Station reports alarms with DCD processing.|None Radiation: Solar activity is expected to be low with a chance for M-class flares on days one, two, and three (20 Dec, 21 Dec, 22 Dec). MP: Two week load is in work, the plan is to release it tomorrow. ENG: There appears to have been a new case of the previously recorded "bit slipped VC1 frames" recurring anomalies seen earlier in the mission (see FN 576 and FDB page https://occweb.cfa.harvard.edu/occweb/web/fdb_web/BitSlips.htm ). In this latest case it appears to have been an SEU impact to the SSR controller. This is benign to the spacecraft but caused extraneous alerts last night. GOT: No issues. Quick look data: ---------------- OBSID Target Instr Grat ----- ------ ----- ---- 28252 SDSS J150527.17+234118.0 ACIS-S NONE 29132 Z147-20 ACIS-S NONE 28260 SDSS J150748.33+551108.6 ACIS-S NONE 28460 MKN421 ACIS-S LETG 28160 Z147-20 ACIS-S NONE Next Comms: ----------- Support (GMT) BOT EOT Station Site Track time (local) --------------- ---- ---- --------- --------- ------------------------- 354/1230-1445 1330 1430 DSS-65 MADRID 0830-0930 EST, Wed 20 Dec 354/2045-2300 2145 2245 DSS-24 GOLDSTONE 1645-1745 EST, Wed 20 Dec 355/0135-0350 0235 0335 DSS-24 GOLDSTONE 2135-2235 EST, Wed 20 Dec 355/1400-1615 1500 1600 DSS-65 MADRID 1000-1100 EST, Thu 21 Dec 355/2355-0210 0055 0155 DSS-36 CANBERRA 1955-2055 EST, Thu 21 Dec SNAPSHOT summary: ----------------- UTC 2023:354:14:22:01 (Dec20) f_ACE 2.21e+01 F_CRM 0.00e+00 Kp 2.0 R km 150859D OBT 2023:354:14:21:33 CTUVCDU 2666495 OBC s/w NRML FMT2_NORM CPEstat NORM OBT 819469293.94 ONLVCDU 2666488 OBC Errs 0 OBSID 28290 EPState SUN SIM TTpos 75625 HETG Angle 77.96 PCADMODE NPNT RA 178.118 Bus V 26.64 SIM FApos -467 LETG Angle 76.09 PCONTROL NPNT Dec 8.338 Bus I 25.45 AOFSTAR GUID Roll 66.700 ACA Object FFFSSSSS Dither ENAB HRC-I HV OFF ACA ImFunc TTTTTTTT Dith Yang -13.80 Yaw Rate 0.55 HRC-S HV OFF ACA CCD Temp -5.4 Dith Zang -3.20 Pitch Rate 0.09 SHLD HV 0.0 ACA Int Time 1.698 Roll Rate 0.22 EVT RT 3569 AOACSTAT OK FSS SunBeta SUN SHLD RT 0 FSS Alfa -0.25 Batt 1 SOC 100.00% Avg HRMA Temp 73.69 FSS Beta -3.46 Batt 2 SOC 100.00% A -15 V -0.62 Avg OBA Temp 67.42 SA Resolv 93.16 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 12.76 A +24 V 0.00 HRMA power 0.00 SCS 128 ACT -Y SA Amps 12.37 OBA power 0.00 SCS 129 INAC +Y SA Temp 118.05 SCS 130 ACT -Y SA Temp 117.32 ACIS Stat7-0 6 Roll Mom. -9.190 SCS 131 ACT Cold Rad -120. Pitch Mom. 3.474 SCS 132 INAC Ephin Temp 0.0000 Warm Rad -77.1 Yaw Mom. -7.247 SCS 133 ACT EIO Temp 0.0000 RadMon ENAB PMTANKP 145.336 SCS 107 INAC EPH temp 161.30 UpLCmdAcc 23834 IRU2G2 curr 115.20 M Unload MON Cmd Rej A 76 IRU2G1 curr 96.00 Roll Bias 1.3985 TSC Move STOP Prop. line 03 158.73 Pitch Bias -3.5033 FA Move STOP CTX A PWR 36.38 Prop. line 04 131.94 Yaw Bias -1.7325 OTG Move DISA CTX A Volts 3.52 UTC 2023:354:14:22:01 (Dec20) f_ACE 2.21e+01 F_CRM 0.00e+00 Kp 2.0 R km 150859D Currently scheduled FPSI, OTG : ACIS-S NONE Estimated Kp : 2.0 ACE EPAM P3 Proton Flux (p/cm^2-s-sr-MeV) : 2.21e+01 GOES-R P4 flux, in RADMON P4GM units : 0.060 GOES-R P7 flux, in RADMON P41GM units : 0.010 GOES-R E > 2.0 MeV flux (p/cm^2-s-sr) : 186.0 Orbit Start Time : 0.010 Geocentric Distance (km), Orbit Leg : 150913 D CRM Region : 3 (Magnetosphere) External Proton Flux (p/cm^2-s-sr-MeV) : 7.5459e+02 Attenuated Proton Flux (p/cm^2-s-sr-MeV) : 7.5459e+02 External Proton Orbital Fluence (p/cm^2-sr-MeV) : 2.2695e+05 Attenuated Proton Orbital Fluence (p/cm^2-sr-MeV) : 2.2695e+05