See http://cxc.harvard.edu/mta/SOT_reports/sot-shift.html Report M9724 Start at 065:13:26 = 08:26am Friday Mar 06, 2026 End at 065:13:40 = 08:40am Friday Mar 06, 2026 HRC SOT Shift Report M9724 HRC Personnel: Dan Patnaude, Ralph Kraft, Gerrit Schellenberger, Tom Gauron PLAN: ---- Execute CAP 1804 NOTES/ISSUES/PROBLEMS: ---------------------- Upon reaching operating voltages, the team observed high total event rates (> 500 c/s) before the HRC-S HVPS shut down. CLD Files used: SUMMARY: ------ HRC-S HVPS was raised autonomously via SCS 90 beginning at 13:36 HRC-S HVPS tripped off at approximately 13:40, after a short period of high rates UTC 2026:065:13:28:01 (Mar 6) f_ACE 6.10e+01 F_CRM 4.25e+07 Kp 1.0 R km 120805D OBT 2026:065:13:27:28 CTUVCDU 6315135 OBC s/w NRML FMT1_EPS CPEstat NORM OBT 889190848.01 ONLVCDU 6315128 OBC Errs 0 OBSID 32173 EPState SUN SIM TTpos -99616 HETG Angle 77.59 PCADMODE NPNT RA 79.161 Bus V 26.79 SIM FApos -990 LETG Angle 4.09 PCONTROL NPNT Dec 46.011 Bus I 22.88 AOFSTAR GUID Roll 272.265 ACA Object SSSSSSSS Dither DISA HRC-I HV OFF ACA ImFunc TTTTTTTT Dith Yang 0.00 Yaw Rate -0.43 HRC-S HV OFF ACA CCD Temp -8.0 Dith Zang 0.00 Pitch Rate 0.26 SHLD HV 0.0 ACA Int Time 1.698 Roll Rate 0.28 EVT RT 5609 AOACSTAT OK FSS SunBeta SUN SHLD RT 0 FSS Alfa -0.24 Batt 1 SOC 100.00% Avg HRMA Temp 72.92 FSS Beta -6.04 Batt 2 SOC 100.00% A -15 V -0.62 Avg OBA Temp 78.88 SA Resolv 95.51 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 94.40 SCS 128 ACT -Y SA Amps 11.02 OBA power 0.00 SCS 129 INAC +Y SA Temp 114.81 SCS 130 ACT -Y SA Temp 113.89 ACIS Stat7-0 65 Roll Mom. 3.664 SCS 131 ACT Cold Rad -115.9 Pitch Mom. 13.182 SCS 132 INAC Ephin Temp 0.0000 Warm Rad -74.7 Yaw Mom. 0.203 SCS 133 ACT EIO Temp 0.0000 RadMon ENAB PMTANKP 148.534 SCS 107 INAC EPH temp 149.99 UpLCmdAcc 19168 IRU2G2 curr 124.80 M Unload MON Cmd Rej A 218 IRU2G1 curr 93.60 Roll Bias 1.9893 TSC Move STOP Prop. line 03 115.08 Pitch Bias -4.1699 FA Move STOP CTX A PWR 36.32 Prop. line 04 119.92 Yaw Bias -1.8267 OTG Move DISA CTX A Volts 3.52 Explanation Current Data: UTC 2026:065:13:49:01 (Mar 6) f_ACE 4.66e+01 F_CRM 4.25e+07 Kp 1.0 R km 119619D Currently scheduled FPSI, OTG : ACIS-I NONE Estimated Kp : 1.0 ACE EPAM P3 Proton Flux (p/cm^2-s-sr-MeV) : 7.17e+01 GOES-R P4 flux, in RADMON P4GM units : 4.02e-02 GOES-R P7 flux, in RADMON P41GM units : 2.78e-03 GOES-R E > 2.0 MeV flux (p/cm^2-s-sr) : 5.02e+02 Orbit Start Time : 2026:063:14:59:35 Geocentric Distance (km), Orbit Leg : 119785 D CRM Region : 2 (Magnetosheath) External Proton Flux (p/cm^2-s-sr-MeV) : 1.7217e+02 Attenuated Proton Flux (p/cm^2-s-sr-MeV) : 1.7217e+02 External Proton Orbital Fluence (p/cm^2-sr-MeV) : 7.0759e+07 Attenuated Proton Orbital Fluence (p/cm^2-sr-MeV) : 4.2457e+07