Aug_22_2000_L397.txt Shift L397 Start at 2000:235:11:30:00 GMT = 2000 Aug 22 7:30am EDT End 2000 Aug 22 11:00am EDT SOT shift report 2000-08-22 L397 See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Aug_22_2000_L397.txt SOT Lead Bill Podgorski SOT SC/ACA FOT-SI HRC-SI ACIS-SI OTHER Plan: - Running AUG2000C on descending leg. Observing 4U 1700-37 with ACIS-S/HETG (obsid 657) rest of day. COMM ended at 235:1120 (before shift) Radiation levels are low. ORBITAL EVENTS: 2000:233:17:08:36.304 143 EPERIGEE ORBIT PERIGEE 2000:235:00:52:57.733 144 EAPOGEE ORBIT APOGEE 2000:236:08:37:08.757 144 EPERIGEE ORBIT PERIGEE 2000:237:16:21:43.618 145 EAPOGEE ORBIT APOGEE 2000:239:00:06:56.556 145 EPERIGEE ORBIT PERIGEE 2000:240:07:50:48.313 146 EAPOGEE ORBIT APOGEE 2000:241:15:36:26.084 146 EPERIGEE ORBIT PERIGEE EVENTS DONE OBSID -------------- ---- ----- Start Shift 235:1130 LOS at start shift Status at last contact was nominal (see note 1) End of shift 234:1500 NOTES/ISSUES/PROBLEMS --------------------- 1) Data from Chandra snapshot: UTC 2000:235:11:20:02 (Aug22) f_ACE 1.37e+01 F_ACE 2.23e+06 Kp 1.0 R km 132261D OBT 2000:235:11:19:16 CTUVCDU 12517759 OBC s/w NRML FMT2_NORM CPEstat OBT 83330356.81 ONLVCDU 12517744 OBC Errs 0 OBSID 703 EPState SUN SIM TTpos 73392 HETG Angle 6.3 PCADMODE NPNT RA 262.918 Bus V 30.87 SIM FApos -467 LETG Angle 78.3 PCONTROL NPNT Dec -16.938 Bus I 28.49 AOFSTAR GUID Roll 264.432 ACA Object FFFSSSSS Dither ENAB HRC-I HV ON ACA ImFunc TTTTTTTT Dith Yang -7.99 Yaw Rate -0.14 HRC-S HV OFF ACA CCD Temp -10.4 Dith Zang 7.33 Pitch Rate 0.00 OBSMode NEXT ACA Int Time 1.698 Roll Rate -0.12 Door OP UNAC AOACSTAT OK FSS SunBeta SUN Door CL UNAC FSS Alfa -0.32 Batt 1 SOC 100.00% Avg HRMA Temp 70.58 FSS Beta -23.70 Batt 2 SOC 100.00% ACIS Stat7-0 64 Avg OBA Temp 50.89 SA Resolv 113.73 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 13.33 HRMA power 71.90 SCS 128 -Y SA Amps 14.49 EPHIN Geom LARG OBA power 38.60 SCS 129 +Y SA Temp 109.89 E150 3.6 SCS 130 -Y SA Temp 110.20 E300 0.1 Roll Mom. -2.273 E1300 0.0 Pitch Mom. 3.263 UpL Cmd Acc 51637 EPH A-Leak 0.6800 P4GM 0.0 Yaw Mom. 1.509 Cmd Rej A 91 EPH B-Leak 0.1200 P41GM 0.0 Expected RA, Dec, Roll (degrees): 262.91979, -16.94068, 264.43227 2) Notes from 9:00am meeting: Operations (Darrell): - 3 supports last 24 hrs, 1 34m, 2 26m, 5 SSR dumps - 1 load segment uplinked, good thru 238:1236 Mission Planning (Dan/Sabrina/kevin): - AUG27 products out, load review today at 2pm Spacecraft Engineering (Wallace): - All OK SOT (Bill Podgorski): - Radiation levels low - HETG insert yesterday took 155.031 secs. Last HETG insert took 154.775 secs, (one minor frame less). This is as close as we can time it using format 4 telemetry. - Obsid 886 fid light drift may be due to SIM -Z flexure temp change or OBA diametrical gradient change, since both had same time constants. Will look into anticipated magnitudes. DSOPS(Joy): - Several quick looks (see below) - Obsid 943 (day 230) indicated nudge mode during post-processing. Examination after meeting indicated that a manually commanded momentum dump had been performed during the observation. Data before and after is good and will be combined (leaving out momentum dump time). - Obsid 1804 is missing FID light in slot 1 for 10 secs. GOT(Ken) - All is OK. 3) Quick Look data review(OK unless noted): Seq # ObsID It Target start time SI Grat Comments ----------------------------------------------------------------------------------------------- 700189 00884 00 0235+164 2000:233:23:59:58.369 30.0 ACIS-S NONE 400111 01845 00 XTE J1550-564 2000:234:09:08:05.241 5.0 ACIS-S NONE