Apr_11_2002_L994.txt Shift L994 Start at 2002:101:11:30:00 GMT = 2002 Apr 11 7:30am EDT End 2002 Apr 11 10:30am EDT SOT shift report 2002-04-11 L994 See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Apr_11_2002_L994.txt SOT Lead Bill Podgorski SOT SC/ACA FOT-SI HRC-SI ACIS-SI OTHER Plan: - Running TOO load APR1002B on ascending leg. Observing 'RCS1417+5305' (obsid 3239) with ACIS-I. Soft proton levels are still very low (flux about 100) but rising slowly. LASCO and EIT observed a partial halo CME on 2002/04/10. The CME was most probably associated with an M8.2 X-ray flare from the AR 9893/9901 complex that was near disk centre at the time. GOES observed the flare between 12:23 - 12:40 UT with peak emission at 12:31. SEC records the flare from AR9893. NOAA SEC: Solar Activity Forecast: Solar activity is expected to be moderate. Region 9893 is in decay phase but still has the potential for a major flare. Region 9899 and Region 9901 are in a growth phase and could produce M-class events. SpaceWeather.com: SOLAR BLAST: Twisted magnetic fields above the sunspot complex 9901-9893 erupted on April 10th at 1230 UT. The explosion sparked an M8-class solar flare and hurled a faint coronal mass ejection (CME) into space. The CME was not squarely Earth-directed, but it could deliver a glancing blow to our planet's magnetosphere on April 12th and trigger high latitude auroras. Seq # ObsID It Target start time SI Grat RA dec roll slew ---------------------------------------------------------------------------------------------------------- APR1002B: 800239 03239 00 0 RCS1417+5305 2002:100:19:51:42.743 63.5 ACIS-I NONE 214.2598 53.1273 163.08 106.38 600278 02941 00 0 NGC 4911 2002:101:13:58:02.743 63.5 ACIS-I NONE 195.3041 27.8483 187.62 31.19 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 ORBITAL EVENTS: 2002:100:08:47:15.195 369 EPERIGEE ORBIT PERIGEE 2002:100:13:23:06.332 370 XE1RADZ0 ELECTRON1 RADIATION EXIT0 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 101:1128 In COMM at start shift, DSS-24 3239 (status at start shift was nominal, see note 1) LOS DSS-24 101:1200 End of shift 101:1430 NOTES/ISSUES/PROBLEMS --------------------- 1) Status at start shift: UTC 2002:101:11:28:20 (Apr11) f_ACE 4.76e+01 F_CRM 1.92e+08 Kp 3.7 R km 133427A OBT 2002:101:11:27:51 CTUVCDU 12484095 OBC s/w NRML FMT2_SSR CPEstat NORM OBT 134911671.62 ONLVCDU 12484080 OBC Errs 0 OBSID 3239 EPState SUN SIM TTpos 92903 HETG Angle 79.46 PCADMODE NPNT RA 214.258 Bus V 30.24 SIM FApos -535 LETG Angle 77.96 PCONTROL NPNT Dec 53.129 Bus I 30.26 AOFSTAR GUID Roll 163.079 ACA Object FFFSSSSS Dither ENAB HRC-I HV OFF ACA ImFunc TTTTTTTT Dith Yang 6.46 Yaw Rate -0.13 HRC-S HV ON ACA CCD Temp -10.4 Dith Zang 4.35 Pitch Rate -0.02 OBSMode NEXT ACA Int Time 1.698 Roll Rate -0.08 Door OP UNAC AOACSTAT OK FSS SunBeta SUN Door CL UNAC FSS Alfa 0.42 Batt 1 SOC 100.00% Avg HRMA Temp 70.61 FSS Beta -27.65 Batt 2 SOC 100.00% ACIS Stat7-0 65 Avg OBA Temp 51.13 SA Resolv 117.64 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 14.49 RadMon ENAB HRMA power 73.00 SCS 128 ACT -Y SA Amps 15.26 EPHIN Geom LARG OBA power 67.40 SCS 129 ACT +Y SA Temp 112.04 E150 0.7 SCS 130 ACT -Y SA Temp 112.35 E300 0.1 Roll Mom. -0.077 SCS 107 INAC E1300 0.0 Pitch Mom. -0.111 UpL Cmd Acc 52697 EPH A-Leak 1.0200 P4GM 0.0 Yaw Mom. 1.654 Cmd Rej A 26 EPH B-Leak 0.5000 P41GM 0.0 Explanation Current Data: UTC 2002:101:11:28:20 (Apr11) f_ACE 4.76e+01 F_CRM 1.92e+08 Kp 3.7 R km 133427A Currently scheduled FPSI, OTG : ACIS-I NONE Costello Kp : 3.00 ACE EPAM P3 Proton Flux (p/cm^2-s-sr-MeV) : 4.76e+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 : 133346 A CRM Region : 2 (Magnetosheath) External Proton Flux (p/cm^2-s-sr-MeV) : 1.47476000000e+03 Attenuated Proton Flux (p/cm^2-s-sr-MeV) : 1.47476000000e+03 External Proton Orbital Fluence (p/cm^2-sr-MeV) : 6.56913339000e+08 Attenuated Proton Orbital Fluence (p/cm^2-sr-MeV) : 1.92316404000e+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 = 52 Valid Event Rate 2 = 38 Shield Event Rates = 3400 ACIS FP Temp = -119.7 DEA Pwr = 48.6 DPA Pwr = 39.3 Science State = Science Active 2) Notes from 9:00am meeting: Operations (Darrel): - 3 supports last 24 hrs, all 34m - 1 load segments uplinked, good thru 105:0052 - CAP 648T run to uplink April ephemeric coefficients - The dump data from yesterday afternoon's pass (100:1815) was unavailable from the CDR, causing us to have to redump this data. This put us a little behind in dumping S/C data. At the end of this morning's pass (101:1100) there were still a couple of hours of data left on the recorder. This will be made up in the next pass. All data for day 100 will be available when the dump from this morning's pass comes in. Mission Planning (Ken): - APR1502B load reviewed yesterday. Several issues being worked. Expect to have products out this AM for a 1pm load review. S/C Engineering(Dan): - Had a solar array resolver yellow limit violation yesterday. This was most likely caused by operation very near the sun angle limit (constraint = 46.2 deg) plus normal operational tolerances. This will be investigated, and potentially, the yellow limit might be revised. - Yesterday's ASVT testing of the EPHIN glitch limit patch was successful. - Now successfully running RedHat 7.1/GRETA 1.2.1 on chocodile. GRETA migration is about half complete now. - Have started transferring FOT home directories to new NETAP server. SOT(Bill): - Current solar activity is low, but there was a partial halo CME associated with yesterday morning's class M8 solar flare. This should hit later on today or tomorrow, but its impact should be minimal. - After discussions with Chris Johnson, we decided to defer the ASVT models telecon (planned for yesterday) unitl next Wednesday. The main topic was to have been plans for moving the SIM MLQT from Ball to TRW (make part of ASVT). Keith Patrick is working this issue, and he is on vacation this week. A trip to Ball (for discussions relevant to the move) is also being planned. DSOPS(Jen): - Several quick looks (see below) GOT(Mike/Chris): - Transition of GRETA workstations to RedHat 7.1/GRETA 1.2.1 ongoing (see above). - Conn college group to tour today. Meetings/events: - 10am, CSC/Lockheed tagup telecon - 1pm, load review - 2pm, FDB - 3pm, mtg with CSC Roger: - Group from SIRTF here today to observe operations - Got good publicity from yesterday's NASA space science update briefing 3) Quick look data: Seq # ObsID It Target start time SI Grat Comment ---------------------------------------------------------------------------------------------------------- APR0802E: 300090 03455 00 1 GK PER 2002:099:15:06:57.715 34.3 ACIS-S HETG APR1002B: 400249 03483 00 0 XTE J1751-305 2002:100:16:31:14.364 3.0 HRC-S NONE TOO Observation