Mar_29_2000_L250.txt Shift L250 Start at 2000:089:12:00:00 GMT = 2000 Mar 29 7:00am EST End 2000 Mar 29 11:00am EST See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Mar_29_2000_L250.txt SOT Lead Bill Podgorski SOT SC/ACA FOT-SI HRC-SI ACIS-SI OTHER Plan: - Running MAR2600C, observing 'SGR B2' with ACIS-I, obsid 944. ORBITAL EVENTS: 2000:086:22:42:32.068 88 EAPOGEE ORBIT APOGEE 2000:088:06:26:25.118 88 EPERIGEE ORBIT PERIGEE EVENTS DONE OBSID -------------- ---- ----- Start Shift LOS 089:1200 Chandra Status at last pass was nominal(note 1) 62101 AOS DSS-24 (Goldstone) 089:1445 944 Chandra status at AOS was nominal (note 2) LOS DSS-24 089:1545 End of shift 089:1600 NOTES/ISSUES/PROBLEMS --------------------- 1) Chandra ststus at last pass: UTC 2000:089:09:15:01 (Wed Mar 29) f_ACE 2.95e+02 F_ACE 1.90e+07 R km 141553A OBT 2000:089:09:13:44 CTUVCDU 13593087 OBC s/w NRML FMT2_NORM CPEstat OBT 70708424.37 ONLVCDU 13593072 OBC Errs 0 OBSID 62101 EPState SUN SIM TTpos 74423 HETG Angle 6.7 PCADMODE NMAN RA 211.681 Bus V 30.87 SIM FApos -467 LETG Angle 79.1 PCONTROL NPNT Dec -77.583 Bus I 25.71 AOFSTAR GUID Roll 23.329 ACA Object FFFSSSSS Dither ENAB HRC-I HV OFF ACA ImFunc TTTRNNNN Dith Yang -7.57 Yaw Rate 259.45 HRC-S HV ON ACA CCD Temp -10.4 Dith Zang -7.74 Pitch Rate 20.76 OBSMode NEXT ACA Int Time 1.698 Roll Rate 71.81 Door OP UNAC AOACSTAT OK FSS SunBeta SUN Door CL UNAC FSS Alfa 0.55 Batt 1 SOC 100.00% Avg HRMA Temp 70.61 FSS Beta -15.20 Batt 2 SOC 100.00% ACIS Stat7-0 66 Avg OBA Temp 50.89 SA Resolv 105.29 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 12.18 HRMA power 37.40 -Y SA Amps 13.33 EPHIN Geom LARG OBA power 59.30 +Y SA Temp 113.28 E1300 6 -Y SA Temp 112.66 P4GM 1 Roll Mom. 1.685 SCS 128 P41GM 0 Pitch Mom. 16.849 SCS 129 UpL Cmd Acc 55005 A-Leak 0.4280 Yaw Mom. -1.689 SCS 130 Cmd Rej A 102 B-Leak 0.0680 In NMAN maneuvering to RA, Dec, Roll (degrees): 260.00001, -57.99999, 76.18306 2) Chandra's state at 089:1445 was: WAS EXPECTED PCAD MODE = NPNT NPNT CONTROL LAW FLAG = NPNT NPNT Stars: = NPNT 5 FIDS = NPNT 3 RA = 266.794787 deg 266.79480 DEC = -28.466439 deg -28.46644 ROLL = 87.615272 deg 87.61526 Format = 2 2 OBSID = 944 944 SIM FA = -535 -536 SIM TSC = 92903 92904 HETGA = 80.58 deg (OUT) OUT HETGB = 81.33 deg (OUT) OUT LETGA = 80.21 deg (OUT) OUT LETGB = 79.08 deg (OUT) OUT EPHIN A-leak = 0.4280 B-leak = 0.0680 ACE Proton Flux = 119 (2 hr avg in 130-214 keV proton channel) Fluence (130-214KeV) = 8.6E+5 LT 3.6E+8 Radiation Level OK EPHIN Geom = LARG E1300 = 5 LT 1318.52 (RADMON P4GM = 0 LT 118.08 Triggers) P41GM = 0 LT 100.00 HRC SP PS = ON IM PS = OFF SP Top Step = 43 SP Bot Step = 54 Shield 1 HV = OFF Shield 2 HV = ON Shield 2 Stp = 8 Valid Event Rate 1 = 0 Valid Event Rate 2 = 0 Shield Event Rates = 3850 ACIS FP Temp = -119.9 Cold Radiator = -127.9 DEA Pwr = 50.9 DPA Pwr = 41.4 3) Notes from 9:00am meeting: Operations yesterday (Darrel Wicker): - 3 1 hr supports last 24 hrs, 3 good dumps. - Ran CAP to dump CPE warm start ctr, was still 1 - Ran CAP 590 to reset EPS K constants to nominal values Mission Planning (Dan/Kevin/Ken): - APR01A load had 3 star fields which needed to be replaced. Products to be out tomorrow AM for 4pm load review. - Ken Gage working APR09 load, also has 3 bad star fields, two of which were in regions which had few stars. - Note: OFLS Release 9 will be able to accept force-fed star selections so that stars will not have to be hand-edited in at DOT level. - Comments coming back on release 8.1a test load Review planned for 4pm today. Spacecraft Engineering(Chris Carignan): - All is well. SOT (Bill Podgorski): - Radiation levels well below limits. ASCDSOPS(Joy Nichols): - One quick look today (see below). GOT (Chris Eagan): - Offline 1 went down Sunday, GOT working problem - Command 1 failover traced to procedural problem which left disk full. - Discussion of data corruption on days 84 and 85. Happens on one channel of DSS-66. Have asked for recording of data on two channels and GOT will get both files and test to see which one is good. Long term fix involves working with JPL to resolve issue. - Noted that DSS-24 missing blocks seem to occur on Sundays. ACIS Squegee Mode Testing(Roger): - Peter Ford will brief FDB on test this Thursday. Will go over the CAP in detail. - Roger indicated that this Friday is too soon to run the test. We need 3 hrs or real-time comm on ascending leg of orbit during the CTI testing, so next window available is about 2 weeks from now. Meetings/etc (Leon McKendrick): 4) Quick Look data review: OBSID Target Time Comment ----- ------ -------------- ------- 00934 M101 2000:086:00:10 ACIS-S Observation, looks OK