Feb_10_2000_M202.txt Shift M202 Start at 2000:041:22:00 GMT = 2000 Feb 10 5:00pm EST End 2000 Feb 10 7:00pm EST See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Feb_10_2000_M202.txt SOT Lead Robert Cameron SOT SC/ACA FOT-SI HRC-SI ACIS-SI OTHER Plan: - Running FEB0600b load: Current: Obsid 00650, GK PERSEI, 2000:041:01:24, ACIS-S NONE, 52.7779 43.9044 280.83 Next Obs: Obsid 00359, CYGNUS A, 2000:042:05:32, ACIS-S NONE, 299.8613 40.7136 27.60 NOTICE: Working on a target of opportunity observation for recent gamma ray burst source: Obsid 00602, GRB000210, 2000:042:05:10, ACIS-S NONE, 29.7934 -40.6538 262.99, 10 ksec. 2000:040:16:04:15.877 70 EPERIGEE ORBIT PERIGEE 2000:041:23:48:05.540 71 EAPOGEE ORBIT APOGEE 2000:043:07:31:44.307 71 EPERIGEE ORBIT PERIGEE 2000:044:15:16:22.574 72 EAPOGEE ORBIT APOGEE 2000:045:23:00:48.899 72 EPERIGEE ORBIT PERIGEE 2000:047:06:45:48.112 73 EAPOGEE ORBIT APOGEE EVENTS DONE OBSID -------------- ---- ----- AOS DSS-46 (Canberra 26m) 041:2110 650 Start Shift 041:2200 Chandra status at start of shift was nominal LOS DSS-46 (Canberra 26m) 041:2245 End of shift 042:0000 Next AOS, DSS-54 (Madrid 34m) (for TOO load) 042:0245 Next LOS, DSS-54 042:0730 NOTES/ISSUES/PROBLEMS --------------------- 1) Chandra State at AOS was correct: UTC 2000:041:21:14:01 (Thu Feb 10) f_ACE 1.54e+03 F_ACE 5.31e+07 R km 143914A OBT 2000:041:21:13:38 CTUVCDU 12499583 OBC s/w NRML FMT2_EPS CPEstat NORM OBT 66604418.48 ONLVCDU 12499576 OBC Errs 0 OBSID 650 EPState SUN SIM TTpos 75623 HETG Angle 80.6 PCADMODE NPNT RA 52.775 Bus V 30.55 SIM FApos -467 LETG Angle 79.1 PCONTROL NPNT Dec 43.904 Bus I 28.49 AOFSTAR GUID Roll 280.832 ACA Object FFFSSSSS Dither ENAB HRC-I HV ON ACA ImFunc TTTTTTTT Dith Yang 1.40 Yaw Rate 0.26 HRC-S HV OFF ACA CCD Temp -10.4 Dith Zang 7.47 Pitch Rate -0.45 OBSMode NEXT ACA Int Time 1.698 Roll Rate 0.28 Door OP UNAC AOACSTAT OK FSS SunBeta SUN Door CL UNAC FSS Alfa 0.05 Batt 1 SOC 100.00% Avg HRMA Temp 70.58 FSS Beta -9.45 Batt 2 SOC 100.00% ACIS Stat7-0 64 Avg OBA Temp 50.89 SA Resolv 100.11 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 13.53 HRMA power 39.50 -Y SA Amps 14.68 EPHIN Geom LARG OBA power 76.60 +Y SA Temp 116.58 E1300 1 -Y SA Temp 115.85 P4GM 1 Roll Mom. -1.624 SCS 128 P41GM 0 Pitch Mom. -7.932 SCS 129 UpL Cmd Acc 45975 A-Leak 0.4240 Yaw Mom. 1.475 SCS 130 Cmd Rej A 144 B-Leak 0.0680 2) Chandra's SI status was: HRC SP PS = OFF IM PS = ON IM Top Step = 42 IM Bot Step = 53 Shield 1 HV = OFF Shield 2 HV = ON Valid Event Rate 1 = 0 Valid Event Rate 2 = 0 Shield Event Rates = 4300 ACIS FP Temp = -119.9 DEA Pwr = 48.6 DPA Pwr = 40.3 3) Quick Look data review: No new quick look data were received this shift. A check of the aspect solution for Obsid 771 shows no unusual errors. OBSID Target Time Comment ----- ------ -------------- ------- 00771 CRAB NEBULA 2000:038:09:19 ACIS-S, Looks very strange as a quick look. 4) The proton flux measured by ACE continues to slowly rise, but fluences are still about 10x lower than Chandra alert thresholds. 5) load review for TOO has been successfully completed, and we are on schedule to begin the TOO observation in a few hours.