SOT shift report 2002-09-09 L1145 Start at 2002:252:12:46 UTC = 2002 Sep 09 08:46 am EDT End 11:50 am EDT SOT Lead Ed Kellogg PLAN ---- OBSID 02561,ROSS 154 2002:252:00:00:41.900 60.6 ACIS-S NONE - STELLAR WINDS FROM DME STARS- winds from nearby dwarf stars are now detectable via their X-ray emission from the charge exchange of stellar wind ions with neutral gas in the ISM. RADIATION SUMMARY ----------------- Solar soft proton flux is high, but falling steadily, after a large increase accompanied by SCS 107 running autonomously at 250:16:49:47 UTC yesterday. The SCS 107 science instrument safing occurred ~15 min after the end of the eclipse. There were fairly intense, long duration events at 15:00 UTC yesterday and 03:00 today, but no CMEs yet reported. Radiation Measurement Observed Limit --------------------- -------- ----- ACE 2 hr fluence 3.0e7 3.6e8 GOES-8/P2 4-9 MeV protons `P4GM' 1. 95. GOES-8/P5 40-80 MeV protons `P41GM' 0.01 0.78 *ACIS* Orbital fluence (since perigee) 5. e8 1.0e9 EPHIN rates (cts/cm^2-s-sr) at last comm. OBSERVED RADMON limit ---------------------------------------- -------- ----------- E1300 (electrons, 2.64 - 6.18 MeV): 0. 10.0 P4GM (protons, 5.0 - 8.3 MeV): 3.4 300.0 P41GM (protons, 41 - 53 MeV): 0. 8.47 ACIS focal plane temperature -119.9 at 2:58 am EDT. REAL TIME OBSERVATIONS UTC OBSID ----------------------------------------------------------------- - Notes from 9 am meeting ------------------------ OPS: Passes 10 over the last 3 day(s) Dumps current Data loss - Load is good -> 256:02:15 UTC CAPs 807 uplink conting. patch for lunar eclipse 810 conting. to disable SCS 29 if SCS 107 ran 811 conting. uplink emergency load if SCS 107 ran 808 uplink conting. patch backout for lunar eclipse 809 uplink short eclipse backout 425E EIA sequencer self test 675 enable SCS 107 after autonomous radiation shutdown Note The DSS 46 26m auto test went well after swapping a receiver. Next passes 1615, 0120, 1105 MP: Ken reports that we are now running the SEP0802B load. It was rebuilt Saturday night, reviewed Sunday at noon, and finalized at 3 pm. It started at 4:20 pm with OBSID 3081. The SEP1602 products are to be out this morning, with an email review today. S/C: The lunar eclipse went well. There were two apparent, but not alarming anomalies related to switching to and from battery power during the eclipse. First, the Battery 1 polarity flag failed a comparison test between the primary and redundant sensors. This is a quirk of the sample timing. The glitch counter reset itself. Second, the Battery 1 discharge sensors for the two solar arrays were slightly out of synch, resulting in an EPS glitch counter increment. This will be reset using CAP 812. The EIA sequencer self test went well. Prior to the SCS 107 event, the EPHIN temperature was cool. At the safing attitude, it increased to just 84 degrees. We may be past the worst time of year for this concern. IST: Jeff Holmes reports that low elevation angle operations during the eclipse were nominal. DATA: - SOT: There were fairly intense, long duration events at 15:00 UTC yesterday and 03:00 today, but no CMEs yet reported. Low probability of CME to impact earth within 96 hours. Moderate probability of M and X class flares within the next 48 hours. MEETINGS -------- Data ---- On colossus (/dsops/GOT/input), - Sep 9 06:59 2002_251_2037_252_0645_Dump_EM_26667.gz Evaluation of QL data --------------------- Target: OBSID SI SOT Eval. ---------------- -- --------- ZETA OPH:obs4367_0 ACIS-S/HETG OK ONC FLANKING FIELD S:obs2548_0 ACIS-I OK 2S 1845-024:obs2691_0 ACIS-S/HETG OK A68:obs3250_0 ACIS-I OK MACSJ2311.5+0338:obs3288_0 ACIS-I OK PSS0008+1923:obs2986_1 ACIS-S OK HS 2146+0428:obs3081_0 ACIS-S OK NOTES/ISSUES/PROBLEMS --------------------- SNAPSHOT -------- UTC 2002:252:07:01:26 (Sep 9) f_ACE 7.66e+03 F_CRM 9.31e+08 Kp 2.0 R km 132758A OBT 2002:252:06:58:18 CTUVCDU 13002111 OBC s/w NRML FMT2_NORM CPEstat NORM OBT 147941898.56 ONLVCDU 13002096 OBC Errs 0 OBSID 2561 EPState SUN SIM TTpos 72440 HETG Angle 79.46 PCADMODE NPNT RA 282.436 Bus V 30.24 SIM FApos -467 LETG Angle 77.96 PCONTROL NPNT Dec -23.825 Bus I 31.02 AOFSTAR GUID Roll 275.373 ACA Object FFFSSSSS Dither ENAB HRC-I HV ON ACA ImFunc TTTTTTTS Dith Yang 0.99 Yaw Rate 0.19 HRC-S HV OFF ACA CCD Temp -10.4 Dith Zang 6.15 Pitch Rate 0.06 OBSMode NEXT ACA Int Time 1.698 Roll Rate 0.15 Door OP UNAC AOACSTAT OK FSS SunBeta SUN Door CL UNAC FSS Alfa -0.36 Batt 1 SOC 100.00% Avg HRMA Temp 70.61 FSS Beta -25.29 Batt 2 SOC 100.00% ACIS Stat7-0 64 Avg OBA Temp 51.05 SA Resolv 115.41 Batt 3 SOC 100.00% Cold Rad -127.9 OBA Tavg Fault NFLT SA Sun Pres ILLM Warm Rad -82.0 OBA Trng Fault NFLT +Y SA Amps 14.88 RadMon ENAB HRMA power 136.70 SCS 128 ACT -Y SA Amps 15.66 EPHIN Geom LARG OBA power 70.20 SCS 129 ACT +Y SA Temp 111.43 E150 37.1 SCS 130 ACT -Y SA Temp 111.43 E300 0.6 Roll Mom. 1.306 SCS 107 INAC E1300 0.0 Pitch Mom. -6.747 UpL Cmd Acc 4718 EPH A-Leak 1.0200 P4GM 3.4 Yaw Mom. -3.497 Cmd Rej A 86 EPH B-Leak 0.4960 P41GM 0.0 Explanation Current Data: UTC 2002:252:14:08:03 (Sep 9) f_ACE 3.84e+03 F_CRM 1.25e+09 Kp 2.3 R km 132270D Currently scheduled FPSI, OTG : ACIS-S NONE Estimated Kp : 2.33 ACE EPAM P3 Proton Flux (p/cm^2-s-sr-MeV) : 3.76e+03 GOES-8 P2 flux, in RADMON P4GM units : 0.01 GOES-10 P2 flux, in RADMON P4GM units : 0.00 GOES-8 P5 flux, in RADMON P41GM units : 0.02 GOES-10 P5 flux, in RADMON P41GM units : 0.01 Orbit Start Time : 2002:251:02:34:00 Geocentric Distance (km), Orbit Leg : 132319 D CRM Region : 2 (Magnetosheath) External Proton Flux (p/cm^2-s-sr-MeV) : 9.41775000000e+03 Attenuated Proton Flux (p/cm^2-s-sr-MeV) : 9.41775000000e+03 External Proton Orbital Fluence (p/cm^2-sr-MeV) : 5.16979148304e+09 Attenuated Proton Orbital Fluence (p/cm^2-sr-MeV) : 1.24617384504e+09 ************************************************************************** See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/