Apr_21_2000_L273.txt Shift L273 Start at 2000:112:11:30:00 GMT = 2000 Apr 21 7:30pm EDT End 2000 Apr 21 11:30am EDT See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Apr_21_2000_L273.txt SOT Lead Bill Podgorski SOT SC/ACA FOT-SI HRC-SI ACIS-SI OTHER Plan: - Running APR1600C on upward leg after perigee passage last night. just started ~23 hour observation of EMSS 1054.5-0321 (obsid 00512) with ACIS-S (no grating) at start of shift. ORBITAL EVENTS: 2000:108:02:24:16.415 96 EAPOGEE ORBIT APOGEE 2000:109:10:07:47.896 96 EPERIGEE ORBIT PERIGEE 2000:110:17:51:20.004 97 EAPOGEE ORBIT APOGEE 2000:112:01:34:15.067 97 EPERIGEE ORBIT PERIGEE 2000:113:09:18:25.737 98 EAPOGEE ORBIT APOGEE 2000:114:17:01:49.819 98 EPERIGEE ORBIT PERIGEE 2000:116:00:45:45.742 99 EAPOGEE ORBIT APOGEE EVENTS DONE OBSID -------------- ---- ----- Start Shift LOS 112:1130 Status at last contact was nominal (see note 1) AOS DSS-24 (Goldstone) 112:1200 State at AOS was nominal (see note 2) 112:1230 512 Acquire 4 stars/3 fids LOS DSS-24 112:1300 End of shift 112:1530 NOTES/ISSUES/PROBLEMS --------------------- 1) Status at last contact: UTC 2000:112:04:22:01 (Fri Apr 21) f_ACE 2.23e+01 F_ACE 0.00e+00 R km 40277A OBT 2000:112:04:21:04 CTUVCDU 4502271 OBC s/w NRML FMT2_NORM CPEstat OBT 72678064.10 ONLVCDU 4502256 OBC Errs 0 OBSID 62080 EPState SUN SIM TTpos -99616 HETG Angle 80.2 PCADMODE NPNT RA 62.997 Bus V 30.87 SIM FApos -467 LETG Angle 78.7 PCONTROL NPNT Dec 52.999 Bus I 29.25 AOFSTAR GUID Roll 313.608 ACA Object SSSSSSSS Dither ENAB HRC-I HV OFF ACA ImFunc TTTTTNNN Dith Yang -0.89 Yaw Rate -0.22 HRC-S HV ON ACA CCD Temp -10.4 Dith Zang 7.97 Pitch Rate 0.08 OBSMode NEXT ACA Int Time 1.698 Roll Rate 0.08 Door OP UNAC AOACSTAT OK FSS SunBeta SUN Door CL UNAC FSS Alfa 0.10 Batt 1 SOC 100.00% Avg HRMA Temp 70.58 FSS Beta 40.62 Batt 2 SOC 100.00% ACIS Stat7-0 66 Avg OBA Temp 50.89 SA Resolv 49.51 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 13.53 HRMA power 61.40 -Y SA Amps 14.68 EPHIN Geom LARG OBA power 43.20 +Y SA Temp 110.82 E1300 5 -Y SA Temp 111.12 P4GM 0 Roll Mom. -6.176 SCS 128 P41GM 0 Pitch Mom. -8.035 SCS 129 UpL Cmd Acc 20611 A-Leak 0.1240 Yaw Mom. 1.227 SCS 130 Cmd Rej A 181 B-Leak 0.0200 Expected RA, Dec, Roll (degrees): 62.99999, 52.99999, 314.03603 2) Chandra state at 112:1230 (after completion of maneuver): WAS EXPECTED PCAD MODE = NPNT NPNT CONTROL LAW FLAG = NPNT NPNT Stars: = 5 5 FIDS = 3 3 RA = 164.225888 deg 164.22507 DEC = -3.631428 deg 3.62895 ROLL = 256.692116 deg 256.69203 Format = 2 2 OBSID = 512 512 SIM FA = -467 -468 SIM TSC = 75624 75624 HETGA = 80.21 deg (OUT) OUT HETGB = 81.96 deg (OUT) OUT LETGA = 79.46 deg (OUT) OUT LETGB = 78.71 deg (OUT) OUT EPHIN A-leak = 0.2240 B-leak = 0.0360 ACE Proton Flux = 27 (2 hr avg in 130-214 keV proton channel) Fluence (130-214KeV) = 1.9E+5 LT 3.6E+8 Radiation Level OK EPHIN Geom = LARG E1300 = 3 LT 1318.52 (RADMON P4GM = 0 LT 3542.40 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 = 3900 ACIS FP Temp = -119.9/-119.7 Cold Radiator = -127.9 DEA Pwr = 51.4 DPA Pwr = 41.2 3) Notes from 9:00am meeting: Operations yesterday (Darrel Wicker): - 3 supports in last day, 3 dumps, 2 34m 1 26m Problems (AGAIN) with support yesterday afternoon on DSS-46 (see M272 shift report). Trouble locking up, etc. Finally got 89 minutes of data at lower (256K) data rate with no CFC errors. However, there were 1505 missing VCDU's in IDR file. DR A04586 issued on problem. - Uplinked last segment of current load, will uplink first of APR2300 load this afternoon's pass. - Having problems creating GRETA merged data files. GOT to resolve ASAP. Mission Planning (Dan): - APR30 load products should be out this afternoon withpossible load review on Monday. - Testing of new star catalog (AGASC1.4) went very well. This in conjunction with Offline 8.1a should improve star selection. Will promote 8.1a/AGASC1.4 after final review of testing by SOT. Spacecraft Engineering (Jeff): - Not able to run daily GRETA analyses due to problem mentioned above. No GRETA datasets since day 110. - Running safe mode recovery procedure SOP 56003 - Recover to A side on ASVT today. SOT (Bill Podgorski): - Radiation levels well below limits. - New output of Kp index now on MTA ACE web page. - All responses to proposed 2:00pm load review time were positive, so this time will be adopted. ASCDSOPS(Joy Nichols): - One quick look today (see below) GOT (Chris): - Will work GRETA problem ASAP 4) Quick Look data review: OBSID Target Time Instrument Comment ----- ------ -------------- --------------- --------------- 01701 XTE J118+48 2000:109:18:02 ACIS-S LETG Very bright image showing diffraction lines from grating support bars.