Sep_12_2005_M2244.txt Shift M2244 Start at 2005:255 21:15 GMT = 2005 Sep 12 5:15 pm EDT End 2005 Sep 12 6:15 pm EDT SOT shift report 2005-09-12 M2244 http://asc.harvard.edu/acis/SOT_reports/sot-shift.html or /proj/web-cxc/htdocs/acis/SOT_reports/Sep_12_2005_M2244.txt SOT shift report 2005-09-12 M2244 ACIS Paul Plucinsky PLAN ---- Verify that the radiation environment is low enough to execute an ACIS CTI measurement using an RTS. Execute CAP 978 to execute an ACIS CTI measurement. Monitor the data from ACIS to ensure proper operation after 5 days of not clocking the CCDs. SUMMARY: ---------- Yippeee !!! ACIS is back on the air after days in hibernation. The radiation environment was FINALLY low enough to start an ACIS CTI measurement. We executed CAP 978 to start a 24 hr ACIS-I CTI measurement, which we anticipate will be cut short by the science resumption load. We expect about 25 ks if the CTI measurement is cut short by the resumption load. 1) Detailed Timeline GMT 255:21:15 AOS on DSS 54 255:21:16 ACE 112-187 keV proton rate is ~3,000 and decreasing. GOES high energy proton channels show a slow, gradual decline. GOES P4 predictor indicates that EPHIN P4 should be about 10-15. 255:21:18 first data, EPHIN P4=29.7, P41=0.3, E1300=4.3 altitude = 110,000A OK, EPHIN rates are clearly below 1/3 and 1/2 (E1300) of the SCS 107 trigger levels,finally !!!! FP temperature is -119.7 C 255:21:30 OC/CC complete SSR dump, ready to start CAP 978 255:21:32 verify steps 1-3 of the CAP 255:21:35 enable RADMON 255:21:37 enable SCS 107 255:21:37 OC notes that the script called out in step 6 of the CAP is incorrect, the CAP calls for "C_SETOBSID" and the correct script is "O_SETOBSID" 255:21:39 set OBSID to 62827 255:21:41 uplink the CLD file with the ACIS loads, 1A_CTI_24HR_131.CLD 255:21:44 enable and activate SCS 131 255:21:46 ACIS confirms receipt of SW command echoes 255:21:49 ACIS confirms HW TLM verifiers 255:21:55 EPHIN P4=25.2, P41=0.3, E1300=4.5 255:21:58 first bias packet 255:22:10 bias maps complete, first event data 255:22:14 overclock values are negative numbers (-11 to -28), event rates look nominal on all 6 CCDs: Counts/frame I3: 87.5 S3: 91.4 I0: 86.8 I1: 89.3 I2: 89.1 S2: 91.8 threshold crossings look nominal on all six CCDs 255:22:14 FP temperature = -119.7 C 255:22:14 1DACTAT (the Door Angle Potentiometer) reads 70.2, indicating that the ACIS door is indeed still open. 255:22:15 LOS 2) Chandra state at the middle of the Pass UTC 2005:255:21:38:01 (Sep12) f_ACE 0.00e+00 F_CRM 0.00e+00 Kp 5.7 R km 110893A OBT 2005:255:21:37:30 CTUVCDU 14659839 OBC s/w NRML FMT2_EPS CPEstat NORM OBT 242948250.64 ONLVCDU 14659824 OBC Errs 0 OBSID 59457 EPState SUN SIM TTpos -99615 HETG Angle 79.09 PCADMODE NPNT RA 321.499 Bus V 29.77 SIM FApos -535 LETG Angle 77.59 PCONTROL NPNT Dec -18.498 Bus I 28.24 AOFSTAR GUID Roll 294.296 ACA Object SSSSSSSS Dither ENAB HRC-I HV OFF ACA ImFunc TTTTTTTT Dith Yang -7.96 Yaw Rate -0.32 HRC-S HV ON ACA CCD Temp -15.6 Dith Zang -1.91 Pitch Rate 0.14 OBSMode NEXT ACA Int Time 1.698 Roll Rate -0.18 Door OP UNAC AOACSTAT OK FSS SunBeta NSUN Door CL UNAC FSS Alfa -17.62 Batt 1 SOC 100.00% Avg HRMA Temp 70.61 FSS Beta -49.81 Batt 2 SOC 100.00% ACIS Stat7-0 66 Avg OBA Temp 51.85 SA Resolv 151.99 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 13.91 RadMon ENAB HRMA power 68.80 SCS 128 INAC -Y SA Amps 13.91 EPHIN Geom LARG OBA power 70.20 SCS 129 INAC +Y SA Temp 112.66 E150 2926.8 SCS 130 INAC -Y SA Temp 113.89 E300 113.5 Roll Mom. 7.814 SCS 107 INAC E1300 4.5 Pitch Mom. -1.688 UpL Cmd Acc 6790 EPH A-Leak 1.0200 P4GM 26.7 Yaw Mom. -3.933 Cmd Rej A 231 EPH B-Leak 0.5640 P41GM 0.1 3) Chandra state at the end of the Pass UTC 2005:255:22:18:02 (Sep12) f_ACE 2.63e+03 F_CRM 0.00e+00 Kp 4.0 R km 112504A OBT 2005:255:22:14:41 CTUVCDU 14668543 OBC s/w NRML FMT2_NORM CPEstat NORM OBT 242950481.05 ONLVCDU 14668528 OBC Errs 0 OBSID 62827 EPState SUN SIM TTpos -99615 HETG Angle 79.09 PCADMODE NPNT RA 321.499 Bus V 29.77 SIM FApos -535 LETG Angle 77.59 PCONTROL NPNT Dec -18.501 Bus I 29.25 AOFSTAR GUID Roll 294.297 ACA Object SSSSSSSS Dither ENAB HRC-I HV OFF ACA ImFunc TTTTTTTT Dith Yang -0.19 Yaw Rate -0.12 HRC-S HV ON ACA CCD Temp -15.6 Dith Zang 5.23 Pitch Rate 0.02 OBSMode NEXT ACA Int Time 1.698 Roll Rate 0.14 Door OP UNAC AOACSTAT OK FSS SunBeta NSUN Door CL UNAC FSS Alfa -17.62 Batt 1 SOC 100.00% Avg HRMA Temp 70.63 FSS Beta -49.79 Batt 2 SOC 100.00% ACIS Stat7-0 65 Avg OBA Temp 51.85 SA Resolv 151.99 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 14.30 RadMon ENAB HRMA power 61.40 SCS 128 INAC -Y SA Amps 14.49 EPHIN Geom LARG OBA power 43.60 SCS 129 INAC +Y SA Temp 112.04 E150 2739.5 SCS 130 INAC -Y SA Temp 113.28 E300 109.1 Roll Mom. 7.890 SCS 107 INAC E1300 4.4 Pitch Mom. -1.845 UpL Cmd Acc 6985 EPH A-Leak 1.0200 P4GM 23.5 Yaw Mom. -4.141 Cmd Rej A 237 EPH B-Leak 0.5640 P41GM 0.0