See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or Jul_18_2002_L1092-ACIS.txt SOT/ACIS shift report 2002-07-18 L1092 Start at 2002:199:09:30 GMT = 2002 Jul 18 5:30 am EDT End Jul 18 8:00 am EDT ACIS Shanil Virani SOT Lead PLAN ---- Uplink JUL1802A loads and execute CAP 803 to perform an ACIS-I CTI measurement. SUMMARY: ---------- Executed CAP 803 to perform an ACIS-I CTI measurement. The radiation environment was below the established criteria to execute the CTI CAP. Data looked nominal; event data was NOT interleaved with bias data. Everything went according to plan. ACE and GOES rates of interest are all headed monotonically downward at this time. ACE EPAM P3 is currently around 36,000, down from 80,000 late last night. EPHIN P4GM is at about 1/5 of the trigger level of 300, so the outlook is good for the start of the replan load at approximately 2002:199:14:00. Total orbital fluence for this orbit is expected to below 2E9 (pure ACE integration; including factor of 5 reduction for HETG deployment). 1) Detailed Timeline GMT 199:09:45 There may problems with the currently scheduled DS station 199:09:50 Exploring other DS stations to get the loads on-board 199:10:00 Problems with DS station 24 resolved 199:10:05 AOS on DSS-24 199:10:05 Alttiude=134016 km and ascending 199:10:09 FP Temp=-119.9 199:10:09 E150 1537.6 E1300 0.3 P4GM 69.4 P41GM 0.0 199:10:25 CAP 675: Enable and Activate SCS 107 199:10:29 RadMon Enabled 199:10:29 Uplink and Activate JUL1802A load into SCS 128, 129, and 130 199:10:36 E150 1525.9 E1300 0.3 P4GM 65.9 P41GM 0.0 199:10:36 EPHIN rates are low enough to begin ACIS CTI 199:10:30 ObsId changed to 62851 199:10:31 Uplinked CTI CLD 199:10:31 Everything looks OK - no reason NOT to proceed with CAP 199:10:32 SCS 137 enabled and activated 199:10:35 OC/CC clears and disables SCS 137 199:10:39 Command IDs seen in telemetry and time of start science 199:10:40 E150 1494.6 E1300 0.4 P4GM 70.0 P41GM 0.0 199:10:40 FP Temp=-119.9 199:10:48 Bias maps begin being telemetered! 199:10:58 Event data from Cal Src looks nominal: ~ 65 good evts/s 199:10:58 FP Temp=-119.9 199:11:00 ACIS confirms normal science run 199:11:00 E150 1494.6 E1300 0.4 P4GM 64.4 P41GM 0.1 199:11:00 LOS 2) Chandra state at the beginning of the 10:00 UTC pass: UTC 2002:199:10:05:07 (Jul18) f_ACE 3.60e+04 F_CRM 3.94e+08 Kp 3.3 R km 134052A OBT 2002:199:10:04:35 CTUVCDU 11952895 OBC s/w NRML FMT2_EPS CPEstat NORM OBT 143373875.17 ONLVCDU 11952880 OBC Errs 0 OBSID 2881 EPState SUN SIM TTpos -99615 HETG Angle 79.46 PCADMODE NPNT RA 67.931 Bus V 30.55 SIM FApos -535 LETG Angle 77.96 PCONTROL NPNT Dec -5.083 Bus I 28.49 AOFSTAR GUID Roll 120.590 ACA Object SSSSSSSS Dither ENAB HRC-I HV ON ACA ImFunc NNNTTTTT Dith Yang -7.40 Yaw Rate 0.08 HRC-S HV OFF ACA CCD Temp -10.4 Dith Zang -4.27 Pitch Rate 0.12 OBSMode NEXT ACA Int Time 1.698 Roll Rate -0.09 Door OP UNAC AOACSTAT OK FSS SunBeta SUN Door CL UNAC FSS Alfa -0.90 Batt 1 SOC 100.00% Avg HRMA Temp 70.58 FSS Beta 34.53 Batt 2 SOC 100.00% ACIS Stat7-0 67 Avg OBA Temp 51.29 SA Resolv 54.67 Batt 3 SOC 100.00% Cold Rad -127.9 OBA Tavg Fault NFLT SA Sun Pres ILLM Warm Rad -84.4 OBA Trng Fault NFLT +Y SA Amps 13.72 RadMon DISA HRMA power 88.70 SCS 128 INAC -Y SA Amps 14.30 EPHIN Geom LARG OBA power 75.50 SCS 129 INAC +Y SA Temp 107.90 E150 1545.4 SCS 130 INAC -Y SA Temp 108.44 E300 23.2 Roll Mom. -3.173 SCS 107 DISA E1300 0.3 Pitch Mom. 10.946 UpL Cmd Acc 29402 EPH A-Leak 1.0200 P4GM 77.2 Yaw Mom. -0.205 Cmd Rej A 240 EPH B-Leak 0.2680 P41GM 0.0 3) Chandra state at the end of the 10:00 UTC pass: UTC 2002:199:11:00:08 (Jul18) f_ACE 3.48e+04 F_CRM 3.94e+08 Kp 3.3 R km 134462A OBT 2002:199:10:59:47 CTUVCDU 11965823 OBC s/w NRML FMT2_NORM CPEstat NORM OBT 143377187.98 ONLVCDU 11965808 OBC Errs 0 OBSID 62851 EPState SUN SIM TTpos -99615 HETG Angle 79.46 PCADMODE NPNT RA 67.930 Bus V 30.55 SIM FApos -535 LETG Angle 77.96 PCONTROL NPNT Dec -5.081 Bus I 28.74 AOFSTAR GUID Roll 120.590 ACA Object SSSSSSSS Dither ENAB HRC-I HV ON ACA ImFunc NNNTTTTT Dith Yang 0.01 Yaw Rate -0.13 HRC-S HV OFF ACA CCD Temp -10.4 Dith Zang -4.36 Pitch Rate -0.03 OBSMode NEXT ACA Int Time 1.698 Roll Rate -0.08 Door OP UNAC AOACSTAT OK FSS SunBeta SUN Door CL UNAC FSS Alfa -0.92 Batt 1 SOC 100.00% Avg HRMA Temp 70.61 FSS Beta 34.50 Batt 2 SOC 100.00% ACIS Stat7-0 65 Avg OBA Temp 51.21 SA Resolv 54.67 Batt 3 SOC 100.00% Cold Rad -127.9 OBA Tavg Fault NFLT SA Sun Pres ILLM Warm Rad -84.4 OBA Trng Fault NFLT +Y SA Amps 13.91 RadMon ENAB HRMA power 26.80 SCS 128 ACT -Y SA Amps 14.49 EPHIN Geom LARG OBA power 75.50 SCS 129 ACT +Y SA Temp 107.90 E150 1494.6 SCS 130 ACT -Y SA Temp 108.44 E300 22.8 Roll Mom. -3.173 SCS 107 INAC E1300 0.4 Pitch Mom. 10.971 UpL Cmd Acc 35124 EPH A-Leak 1.0200 P4GM 64.4 Yaw Mom. -0.165 Cmd Rej A 61 EPH B-Leak 0.2680 P41GM 0.1 ------------------------------------------------------------------------ Shanil N. Virani svirani@head-cfa.harvard.edu Chandra X-ray Observatory Center CELL PHONE: 617-721-4367 Harvard-Smithsonian PAGER: 1-888-327-8862 Center for Astrophysics EMAIL PAGER: 3278862@archwireless.net 60 Garden Street, MS-70 PHONE: 617-496-7855 Cambridge, MA 02138 USA FAX: 617-495-7356 http://hea-www.harvard.edu/~svirani "I believe that the extraordinary should be pursued. But extraordinary claims require extraordinary evidence." - Carl Sagan (1934-1996) ------------------------------------------------------------------------