Apr_12_2002_L995.txt Shift L995 Start at 2002:102:11:30:00 GMT = 2002 Apr 12 7:30am EDT End 2002 Apr 12 11:35am EDT SOT shift report 2002-04-12 L995 See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Apr_12_2002_L995.txt SOT Lead Bill Podgorski SOT SC/ACA FOT-SI HRC-SI ACIS-SI OTHER Plan: - Running TOO load APR1002B on descending leg heading into radiation zone. Observing 'SU UMA' (obsid 3478) with ACIS-S/HETG. Soft proton levels are still very low (flux about 100). Expect to see weak effects today due to April 10 partial-halo CME. Seq # ObsID It Target start time SI Grat RA dec roll slew ---------------------------------------------------------------------------------------------------------- APR1002B: 300081 03478 00 0 SU UMA 2002:102:08:04:49.314 24.0 ACIS-S HETG 123.0924 62.6238 255.02 58.24 ---- T_E70 00 CAL-ER 2002:102:15:16:01.708 8.8 -- -- 100.0000 60.0000 275.00 11.33 ORBITAL EVENTS: 2002:101:16:31:24.661 370 EAPOGEE ORBIT APOGEE 2002:102:17:41:47.146 370 EE1RADZ0 ELECTRON1 RADIATION ENTRY0 2002:103:00:14:40.274 370 EPERIGEE ORBIT PERIGEE EVENTS DONE OBSID -------------- ---- ----- Start Shift 102:1130 AOS DSS-24 102:1435 Status at AOS was nominal - see note 1 3478 LOS DSS-24 102:1535 End of shift 102:1535 NOTES/ISSUES/PROBLEMS --------------------- 1) Status at AOS: UTC 2002:102:14:38:19 (Apr12) f_ACE 4.09e+01 F_CRM 3.94e+08 Kp 4.0 R km 84174D OBT 2002:102:14:37:57 CTUVCDU 12865718 OBC s/w NRML FMT2_NORM CPEstat NORM OBT 135009477.21 ONLVCDU 12865704 OBC Errs 0 OBSID 3478 EPState SUN SIM TTpos 74424 HETG Angle 6.34 PCADMODE NPNT RA 123.094 Bus V 30.24 SIM FApos -467 LETG Angle 77.96 PCONTROL NPNT Dec 62.622 Bus I 30.01 AOFSTAR GUID Roll 255.020 ACA Object FFFSSSSS Dither ENAB HRC-I HV OFF ACA ImFunc TTTTTTTT Dith Yang 6.05 Yaw Rate 0.08 HRC-S HV ON ACA CCD Temp -10.4 Dith Zang -5.08 Pitch Rate 0.12 OBSMode NEXT ACA Int Time 1.698 Roll Rate -0.08 Door OP UNAC AOACSTAT OK FSS SunBeta SUN Door CL UNAC FSS Alfa -0.21 Batt 1 SOC 100.00% Avg HRMA Temp 70.61 FSS Beta 1.91 Batt 2 SOC 100.00% ACIS Stat7-0 64 Avg OBA Temp 51.13 SA Resolv 88.11 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 14.30 RadMon ENAB HRMA power 64.50 SCS 128 ACT -Y SA Amps 15.07 EPHIN Geom LARG OBA power 74.60 SCS 129 ACT +Y SA Temp 112.35 E150 3.0 SCS 130 ACT -Y SA Temp 112.66 E300 0.0 Roll Mom. -3.824 SCS 107 INAC E1300 0.0 Pitch Mom. -8.028 UpL Cmd Acc 52803 EPH A-Leak 1.0200 P4GM 0.3 Yaw Mom. 1.988 Cmd Rej A 42 EPH B-Leak 0.2960 P41GM 0.0 Explanation Current Data: UTC 2002:102:14:38:19 (Apr12) f_ACE 4.09e+01 F_CRM 3.94e+08 Kp 4.0 R km 84174D Currently scheduled FPSI, OTG : ACIS-S HETG Costello Kp : 4.00 ACE EPAM P3 Proton Flux (p/cm^2-s-sr-MeV) : 4.11e+01 GOES-8 P2 flux, in RADMON P4GM units : 0.00 GOES-10 P2 flux, in RADMON P4GM units : 0.00 GOES-8 P5 flux, in RADMON P41GM units : 0.01 GOES-10 P5 flux, in RADMON P41GM units : 0.01 Orbit Start Time : 2002:100:08:49:00 Geocentric Distance (km), Orbit Leg : 84609 D CRM Region : 3 (Magnetosphere) External Proton Flux (p/cm^2-s-sr-MeV) : 3.95103000000e+04 Attenuated Proton Flux (p/cm^2-s-sr-MeV) : 7.90206000000e+03 External Proton Orbital Fluence (p/cm^2-sr-MeV) : 9.34788798360e+08 Attenuated Proton Orbital Fluence (p/cm^2-sr-MeV) : 3.93900478608e+08 HRC IM PS = OFF SP PS = ON Stp 90/102 Shield 1 HV = OFF Shield 2 HV = ON Stp 8 Valid Event Rate 1 = 45 Valid Event Rate 2 = 37 Shield Event Rates = 3300 ACIS FP Temp = -119.7 DEA Pwr = 54.5 DPA Pwr = 39.4 Science State = Science Active 2) Notes from 9:00am meeting: Operations (Darrel): - 2 supports last 24 hrs, both 34m - No loads uplinked - Current on dump data Mission Planning (Ken): - APR1502C loads approved yesterday - APR22 loads in work S/C Engineering(Dan): - Solar array yellow limit violation was due to drift of sun during observation which was very close to the sun angle constraint. Will keep yellow limit as is (47 deg) but work out a way to flag this as expected (maybe put into backstop). - FDB approved a "do nothing" procedure for May lunar eclipse (per Rino's recommendation) - FDB conditionally approved the EPHIN glitch counter patch, pending successful completion of one more test on ASVT. Should uplink patch early next week. - GRETA promotion is ongoing. Had to reinstall GRETA on 3 workstations yesterday due to operating system configuration issue. SOT(Bill): - Current solar activity is low, - Expect to see weak effects today due to April 10 partial-halo CME. DSOPS(Jen): - Several quick looks (see below) GOT(Mike/Chris): - All is OK Meetings/events: Roger: - Group from SIRTF had a successful visit yesterday, learned a lot about our operations. 3) Quick look data: Seq # ObsID It Target start time SI Grat Comment ---------------------------------------------------------------------------------------------------------- APR1002B: 400246 03475 00 1 RX J170930.2-263927 2002:100:17:49:14.364 5.0 ACIS-S NONE