SOT shift report 2000-09-25 H431 Start at 2000:269:04:30 GMT = 2000 Sept. 25 00:30am EDT End 02:30am EDT See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Sept_25_2000_H431.txt SOT Lead Robert Cameron Mechanisms: Andrew Northrup Plan: ---- Manual insertion of the LETG for the SEP2400 load. Seq # ObsID It Target start time SI Grat RA dec roll -------------------------------------------------------------------------------------------------- 800073 00897 ABELL 4059 2000:268:22:09:41.938 ACIS-S NONE 359.2452 -34.7737 355.43 59.40 ---- 61908 CAL-ER 2000:269:05:00:00.922 -- -- 53.3197 -25.8954 69.60 64.26 200033 00608 NGC 1360 2000:269:06:41:30.922 HRC-S LETG 53.3198 -25.8952 69.54 0.06 EVENTS GMT OBSID -------------- ---- ----- AOS DSS-24 (Goldstone 34m) 0500 61908 LOS DSS-24 (Goldstone 34m) 0630 Orbital Events: -------------- 2000:268:02:14:00.070 156 EPERIGEE ORBIT PERIGEE 2000:269:09:57:11.304 157 EAPOGEE ORBIT APOGEE 2000:270:17:41:58.148 157 EPERIGEE ORBIT PERIGEE 2000:272:01:24:46.327 158 EAPOGEE ORBIT APOGEE 2000:273:09:08:21.466 158 EPERIGEE ORBIT PERIGEE 2000:274:16:51:48.585 159 EAPOGEE ORBIT APOGEE 2000:276:00:34:51.878 159 EPERIGEE ORBIT PERIGEE 2000:277:08:18:48.989 160 EAPOGEE ORBIT APOGEE 2000:278:16:02:35.176 160 EPERIGEE ORBIT PERIGEE NOTES/ISSUES/PROBLEMS --------------------- LETG insertion was performed without problem, using CAP 657 Rev C. The insertion was performed with one 152-second move, plus 15 128-ms moves, for a total LETG drive time of 153.9 seconds. The previous LEG insertion on August 6 required 16 128-ms moves. MCE motor back-emf during large move was 6.605 volts. Solar proton radiation levels are low. UTC Timeline of events: 0505: Start CAP 657 Rev C. 0511: NMAN mode. 0513: Format 4. 0518: apply LETG motor power. 0535: LETG inserted. 0547: CAP 657 Rev C completed. Chandra snapshot ---------------- Before LETG insertion: UTC 2000:269:05:11:02 (Sep25) f_ACE 1.56e+01 F_ACE 1.43e+06 Kp 3.7 R km 140265A OBT 2000:269:05:10:35 CTUVCDU 7118019 OBC s/w NRML FMT2_NORM CPEstat OBT 86245835.67 ONLVCDU 7118008 OBC Errs 0 OBSID 61908 EPState SUN SIM TTpos 75623 HETG Angle 80.2 PCADMODE NPNT RA 53.318 Bus V 30.55 SIM FApos -467 LETG Angle 78.3 PCONTROL NPNT Dec -25.893 Bus I 30.77 AOFSTAR GUID Roll 69.595 ACA Object SSSSSSSS Dither ENAB HRC-I HV ON ACA ImFunc TTTTTNNN Dith Yang 5.32 Yaw Rate -0.26 HRC-S HV OFF ACA CCD Temp -10.4 Dith Zang -7.72 Pitch Rate -0.20 OBSMode NEXT ACA Int Time 1.698 Roll Rate 0.11 Door OP UNAC AOACSTAT OK FSS SunBeta SUN Door CL UNAC FSS Alfa -0.35 Batt 1 SOC 100.00% Avg HRMA Temp 70.58 FSS Beta -34.12 Batt 2 SOC 100.00% ACIS Stat7-0 66 Avg OBA Temp 50.73 SA Resolv 124.05 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 14.68 HRMA power 71.00 SCS 128 -Y SA Amps 15.85 EPHIN Geom LARG OBA power 131.90 SCS 129 +Y SA Temp 112.35 E150 19.2 SCS 130 -Y SA Temp 112.97 E300 0.4 Roll Mom. -3.899 E1300 0.0 Pitch Mom. -2.206 UpL Cmd Acc 34506 EPH A-Leak 0.5400 P4GM 0.0 Yaw Mom. 3.794 Cmd Rej A 5 EPH B-Leak 0.0960 P41GM 0.0 After LETG insertion: UTC 2000:269:06:22:01 (Sep25) f_ACE 1.67e+01 F_ACE 1.47e+06 Kp 3.7 R km 141238A OBT 2000:269:06:21:28 CTUVCDU 7134613 OBC s/w NRML FMT1_NORM CPEstat NORM OBT 86250088.41 ONLVCDU 7134600 OBC Errs 0 OBSID 61908 EPState SUN SIM TTpos 75623 HETG Angle 79.8 PCADMODE NPNT RA 53.317 Bus V 30.87 SIM FApos -467 LETG Angle 4.5 PCONTROL NPNT Dec -25.896 Bus I 24.94 AOFSTAR GUID Roll 69.595 ACA Object SSSSSSSS Dither ENAB HRC-I HV ON ACA ImFunc TTTTTNNN Dith Yang -6.14 Yaw Rate -0.04 HRC-S HV OFF ACA CCD Temp -10.4 Dith Zang -7.87 Pitch Rate -0.06 OBSMode OBSV ACA Int Time 1.698 Roll Rate 0.12 Door OP UNAC AOACSTAT OK FSS SunBeta SUN Door CL UNAC FSS Alfa -0.40 Batt 1 SOC 100.00% Avg HRMA Temp 70.63 FSS Beta -34.16 Batt 2 SOC 100.00% ACIS Stat7-0 64 Avg OBA Temp 50.81 SA Resolv 124.07 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 RADMON ENAB HRMA power 56.70 SCS 128 ACT -Y SA Amps 13.33 EPHIN Geom LARG OBA power 37.10 SCS 129 ACT +Y SA Temp 112.66 E150 20.8 SCS 130 ACT -Y SA Temp 113.28 E300 0.5 Roll Mom. -3.743 E1300 0.0 Pitch Mom. -2.703 UpL Cmd Acc 36111 EPH A-Leak 0.5280 P4GM 0.0 Yaw Mom. 3.954 Cmd Rej A 69 EPH B-Leak 0.0920 P41GM 0.0