Dec_20_2001_L882.txt Shift L882 Start at 2001:354:12:30:00 GMT = 2001 Dec 20 7:30am EDT End 2001 Dec 20 10:00pm EDT SOT shift report 2001-12-20 L882 See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Dec_20_2001_L882.txt SOT Lead Bill Podgorski SOT SC/ACA FOT-SI HRC-SI ACIS-SI OTHER Plan: - Running DEC1701B on ascending leg. Continue observing 'NGC2110' (obsid 3418) with ACIS-S/HETG. Current radiation levels are moderate, proton flux about 1200. Solar Activity Forecast: Solar activity is expected to be low to moderate. Regions 9733 and 9739 have potential to produce an M-class flare on the west limb. Region 9742 also has a slim chance of producing an M-class flare. No COMM this shift. Seq # ObsID It Target start time SI Grat RA dec roll slew ---------------------------------------------------------------------------------------------------------- DEC1701B: ---- T_X28 00 CAL-ER 2001:354:07:26:15.284 20.8 -- -- 95.0000 0.0000 15.02 16.17 700582 03418 00 NGC2110 2001:354:13:40:55.284 76.0 ACIS-S HETG 88.0222 -7.4713 359.00 18.60 700454 03015 00 3C 120 2001:355:11:15:35.284 58.0 ACIS-S HETG 68.2677 5.3614 313.54 50.57 700582 03417 00 NGC2110 2001:356:03:50:15.284 33.1 ACIS-S HETG 88.0222 -7.4713 359.00 50.57 ORBITAL EVENTS: 2001:354:07:10:57.455 327 EPERIGEE ORBIT PERIGEE 2001:354:10:26:06.299 328 XE1RADZ0 ELECTRON1 RADIATION EXIT0 2001:355:14:54:40.101 328 EAPOGEE ORBIT APOGEE 2001:356:15:59:04.980 328 EE1RADZ0 ELECTRON1 RADIATION ENTRY0 2001:356:22:38:40.293 328 EPERIGEE ORBIT PERIGEE EVENTS DONE OBSID -------------- ---- ----- Start Shift 354:1230 Status at last comm was nominal (see note 1) End of shift 354:1500 NOTES/ISSUES/PROBLEMS --------------------- 1) Status at last COMM: UTC 2001:354:10:02:15 (Dec20) f_ACE 1.52e+03 F_CRM 0.00e+00 Kp 3.0 R km 40171A OBT 2001:354:09:58:57 CTUVCDU 8254591 OBC s/w NRML FMT2_NORM CPEstat NORM OBT 125229537.32 ONLVCDU 8254576 OBC Errs 0 OBSID 61376 EPState SUN SIM TTpos -99615 HETG Angle 6.34 PCADMODE NPNT RA 94.999 Bus V 29.46 SIM FApos -467 LETG Angle 77.96 PCONTROL NPNT Dec -0.001 Bus I 32.03 AOFSTAR GUID Roll 15.024 ACA Object SSSSSSSS Dither ENAB HRC-I HV ON ACA ImFunc TTTTTTTT Dith Yang -5.07 Yaw Rate -0.15 HRC-S HV OFF ACA CCD Temp -10.4 Dith Zang 1.78 Pitch Rate -0.27 OBSMode NEXT ACA Int Time 1.698 Roll Rate -0.08 Door OP UNAC AOACSTAT OK FSS SunBeta NSUN Door CL UNAC FSS Alfa -49.61 Batt 1 SOC 100.00% Avg HRMA Temp 70.58 FSS Beta -49.79 Batt 2 SOC 100.00% ACIS Stat7-0 66 Avg OBA Temp 50.66 SA Resolv 155.92 Batt 3 SOC 100.00% Cold Rad -125.5 OBA Tavg Fault NFLT SA Sun Pres ILLM Warm Rad -82.0 OBA Trng Fault NFLT +Y SA Amps 15.66 RadMon DISA HRMA power 170.20 SCS 128 ACT -Y SA Amps 15.85 EPHIN Geom LARG OBA power 96.80 SCS 129 ACT +Y SA Temp 118.05 E150 153.7 SCS 130 ACT -Y SA Temp 118.78 E300 1.3 Roll Mom. -0.490 SCS 107 INAC E1300 0.0 Pitch Mom. -12.687 UpL Cmd Acc 55377 EPH A-Leak 0.5400 P4GM 0.2 Yaw Mom. 1.664 Cmd Rej A 66 EPH B-Leak 0.1040 P41GM 0.0 Explanation Current Data: UTC 2001:354:12:51:03 (Dec20) f_ACE 1.20e+03 F_CRM 0.00e+00 Kp 3.0 R km 61361A Currently scheduled FPSI, OTG : HRC-S HETG Costello Kp : 3.00 ACE EPAM P3 Proton Flux (p/cm^2-s-sr-MeV) : 1.20e+03 Orbit Start Time : 2001:354:07:14:01 Geocentric Distance (km), Orbit Leg : 61126 A CRM Region : 3 (Magnetosphere) External Proton Flux (p/cm^2-s-sr-MeV) : 1.07412000000e+03 Attenuated Proton Flux (p/cm^2-s-sr-MeV) : 0.00000000000e+00 External Proton Orbital Fluence (p/cm^2-sr-MeV) : 4.89048510000e+07 Attenuated Proton Orbital Fluence (p/cm^2-sr-MeV) : 0.00000000000e+00 HRC IM PS = ON Stp 42/53 SP PS = OFF 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 = -117.3 DEA Pwr = 23.1 DPA Pwr = 40.6 Science State = Science Idle 2) Notes from 9:00am meeting: Operations (Darrel): - 3 supports last 24 hrs, 2 34m, 1 26m, no issues - One ls uplinked, good thru 357:2255 - Dumps current - CAP 750D run to dump part of checksum memory Mission Planning (Ken): - An update has been made to the comet LINEAR ephemeris which will affect target positions in DEC24 load. The load will be rerun and products issued about noon today for a load review later on in the day. - JAN07 load has been built with continuity from the earlier DEC24 load. This version of the load is being reviewed, but the load must be rerun after DEC24 is finalized. Plan to have JAN07 close to being ready before holidays so that work remaining when we get back is minimal. - We have been notified that DSS-16's return to service will be delayed by 2 weeks from the original schedule. Now will be up Jan 11. We had been planning to use DSS-16 during those two weeks, so we had to revise the pass schedule, which has been done. S/C Engineering(Dan/Rich/Mike): - ACIS limit violations continue to occur on an irregular basis. Rich Myers indicated that they are the result of telemetry glitches. They are passed along to ACIS team (Peter Ford, Paul Plucinsky) as they occur. - Mike Watson reported on a "loop stress warning - LOW" limit violation. This is indicative of some type of RFI on the S/C's receiver, probably due to RFI from some transmitter in our band. This info has been passed along to MSFC (Greg Wright). - Plan to run CAP 750E to dump more of checksum memory. SOT(Bill): - Radiation flux level (soft protons) is moderate (1000) - Spaceweather predictions are for low to moderate activity in the next few days, but with a potential for more activity later on. DSOPS(Jen): - Two QL's, see below GOT(Mike/Chris): - All is OK. Telemetry database will be updated at a convenient time. Meetings/events: - 9:30am, pass plan review - 10am, CSC/Lockheed Tagup followed by migration tagup - 2pm, FDB - 3pm, offline systems mtg - Load review - Time TBD but later on in day. 3) Quick look data: Seq # ObsID It Target start time SI Grat Comment ---------------------------------------------------------------------------------------------------------- DEC17: 500167 01990 00 0453-68.5 2001:352:08:22:32.143 39.0 ACIS-S NONE 200192 03410 00 HD 93497 2001:352:19:40:32.143 58.0 ACIS-S HETG