Apr_18_2002_L1001.txt Shift L1001 Start at 2002:108:11:30:00 GMT = 2002 Apr 18 7:30am EDT End 2002 Apr 18 10:00am EDT SOT shift report 2002-04-18 L1001 See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or Apr_18_2002_L1001.txt SOT Lead Bill Podgorski SOT SC/ACA FOT-SI HRC-SI ACIS-SI OTHER Plan: - Running replan load APR1702B on ascending leg just after radiation zone exit. Run exit CTI (obsid 61229) followed by observation of 'NGC 4038/NGC 4039' (obsid 3043) with ACIS-S. Soft proton levels are now high (around 8000) and are expected to remain so (or increase) for the next several days as the effects of yesterday's long duration M class flare and associated full halo CME reach the earth. SpaceWeather.com: HERE COMES THE SUN: Twisted magnetic fields above sunspot 9906 erupted on April 17th (at 0800 UT) and hurled a lopsided coronal mass ejection toward Earth. The expanding cloud could ignite Northern Lights when it sweeps past our planet on April 19th or 20th. NOAA forecasters estimate a 20% chance of severe geomagnetic activity at middle latitudes. NOAA SEC Forecast: Solar Activity Forecast: Solar activity is expected to be moderate. Additional M-class flares, possibly including a major flare, are expected in Region 9906. Geophysical Activity Forecast: The geomagnetic field is expected to be at active to minor storm levels as the current disturbance recovers over the next 24 hours. Another disturbance at minor to major storm levels is expected to begin on 19 April in response to the LDE M2/CME which occurred on 17 April. The greater than 10 MeV proton event currently in progress is expected to end within the next 24 hours. No COMM this shift. Seq # ObsID It Target start time SI Grat RA dec roll slew ---------------------------------------------------------------------------------------------------------- APR1702B (replan load): ---- T_E72 00 CAL-ER 2002:108:00:27:45.142 7.5 -- -- 166.0000 -7.0000 261.68 101.89 ---- T_X73 00 CAL-ER 2002:108:08:37:16.564 20.8 -- -- 166.0000 -7.0000 261.51 0.18 700482 03043 00 1 NGC 4038/NGC 4039 2002:108:14:51:56.564 68.0 ACIS-S NONE 180.4546 -18.8662 281.79 25.01 ---- I2953 00 CAL-ER 2002:109:10:30:29.923 0.0 -- -- 245.0000 -25.7000 74.96 133.75 ORBITAL EVENTS: 2002:108:07:12:09.012 372 EPERIGEE ORBIT PERIGEE 2002:108:11:38:11.738 373 XE1RADZ0 ELECTRON1 RADIATION EXIT0 2002:109:14:56:09.448 373 EAPOGEE ORBIT APOGEE 2002:110:16:00:40.302 373 EE1RADZ0 ELECTRON1 RADIATION ENTRY0 2002:110:22:41:07.228 373 EPERIGEE ORBIT PERIGEE EVENTS DONE OBSID -------------- ---- ----- Start Shift 108:1130 Status at last COMM was as expected - see note 1) End of shift 108:1400 NOTES/ISSUES/PROBLEMS --------------------- 1) Status at last COMM: UTC 2002:108:09:31:19 (Apr18) f_ACE 6.92e+03 F_CRM 0.00e+00 Kp 5.3 R km 36320A OBT 2002:108:09:29:12 CTUVCDU 14816511 OBC s/w NRML FMT2_NORM CPEstat NORM OBT 135509352.92 ONLVCDU 14816496 OBC Errs 0 OBSID 61229 EPState SUN SIM TTpos -99616 HETG Angle 79.46 PCADMODE NPNT RA 166.000 Bus V 29.93 SIM FApos -535 LETG Angle 77.96 PCONTROL NPNT Dec -6.999 Bus I 32.79 AOFSTAR GUID Roll 261.508 ACA Object SSSSSSSS Dither ENAB HRC-I HV OFF ACA ImFunc TTTTTNNN Dith Yang -2.96 Yaw Rate -0.01 HRC-S HV ON ACA CCD Temp -10.4 Dith Zang -1.08 Pitch Rate 0.17 OBSMode NEXT ACA Int Time 1.698 Roll Rate 0.14 Door OP UNAC AOACSTAT OK FSS SunBeta NSUN Door CL UNAC FSS Alfa -0.41 Batt 1 SOC 100.00% Avg HRMA Temp 70.61 FSS Beta -49.59 Batt 2 SOC 100.00% ACIS Stat7-0 66 Avg OBA Temp 50.89 SA Resolv 140.44 Batt 3 SOC 100.00% Cold Rad -120.7 OBA Tavg Fault NFLT SA Sun Pres ILLM Warm Rad -79.6 OBA Trng Fault NFLT +Y SA Amps 16.05 RadMon DISA HRMA power 19.20 SCS 128 ACT -Y SA Amps 16.44 EPHIN Geom SMAL OBA power 226.40 SCS 129 ACT +Y SA Temp 112.66 E150 967804.9 SCS 130 ACT -Y SA Temp 113.89 E300 62885.0 Roll Mom. -17.970 SCS 107 INAC E1300 311.0 Pitch Mom. 9.630 UpL Cmd Acc 1175 EPH A-Leak 1.0200 P4GM 47176.2 Yaw Mom. 13.565 Cmd Rej A 50 EPH B-Leak 0.2480 P41GM 0.5 Explanation Current Data: UTC 2002:108:12:48:03 (Apr18) f_ACE 7.35e+03 F_CRM 0.00e+00 Kp 4.7 R km 60042A Currently scheduled FPSI, OTG : HRC-S NONE Costello Kp : 4.67 ACE EPAM P3 Proton Flux (p/cm^2-s-sr-MeV) : 7.35e+03 GOES-8 P2 flux, in RADMON P4GM units : 0.05 GOES-10 P2 flux, in RADMON P4GM units : 0.04 GOES-8 P5 flux, in RADMON P41GM units : 0.01 GOES-10 P5 flux, in RADMON P41GM units : 0.01 Orbit Start Time : 2002:108:07:14:01 Geocentric Distance (km), Orbit Leg : 59589 A CRM Region : 3 (Magnetosphere) External Proton Flux (p/cm^2-s-sr-MeV) : 1.37070000000e+04 Attenuated Proton Flux (p/cm^2-s-sr-MeV) : 0.00000000000e+00 External Proton Orbital Fluence (p/cm^2-sr-MeV) : 2.20436921100e+09 Attenuated Proton Orbital Fluence (p/cm^2-sr-MeV) : 0.00000000000e+00 HRC IM PS = OFF SP PS = ON Stp 43/54 Shield 1 HV = OFF Shield 2 HV = OFF Valid Event Rate 1 = 0 Valid Event Rate 2 = 0 Shield Event Rates = 0 ACIS FP Temp = -113.9 DEA Pwr = 33.3 DPA Pwr = 12.6 Science State = Science Idle 2) Notes from 9:00am meeting: Operations (Darrel): - 3 supports yesterday, 2 34m, 1 26m - Ran CAP 593 to terminate science load via SCS107 - Uplinked 3 load segments from APR1702B, the first was a maneuver load to maneuver to perigee passage attitude, the next two contained science obs. - Approval to start science given last night, load segs 2 and 3 uplinked and activated. Science obs begin at about 1400Z today. - Ran CAP 675 to re-enable SCS107. - Dumps current, but dump from last pass not in-house yet. Mission Planning (Ken): - APR1702B replan loads approved (maneuver segment plus two science obs segments with clean load break should we choose not to start science obs) - APR22 load will be rerun for continuity, review at 1pm. S/C Engineering(Dan): - CPE heartbeat enable flag state code limit violation detected in yesterday's dump telemetry (one telemetry cycle long). Is most likely a telemetry glitch since if it were true, more problems would have been noted. - GRETA promotion ongoing SOT(Bill): - Soft proton levels are now high (around 8000) and are expected to remain so (or increase) for the next several days as the effects of yesterday's long duration M class flare and associated full halo CME reach the earth. DSOPS(Joy): - No quick looks. GOT(Chris): - All OK. - GRETA 1.2.1 transition ongoing - Tours today (see below) Meetings/events: - 10am, CSC/Lockheed telecon followed by migration discussions - 11am, Marty Kress tour - 1pm, load review - 2pm, FDB - 3pm, MP staff - 3pm, WGBH filming Roger: - Delta Search tour tomorrow - Today we passed launch +1000 days milestone! 3) Quick look data: Seq # ObsID It Target start time SI Grat Comment ----------------------------------------------------------------------------------------------------------