SOT shift report 2001-09-29 M800 Start at 2001:272:18:20 GMT = 2001 Sep 29 02:20 pm EDT End 04:20 pm EDT ACIS Paul Plucinsky, Anya Plucinsky, Ciara Plucinsky PLAN ---- Monitor EPHIN rates in realtime to decide if it is appropriate to load and activate the SEP3001 replan loads. If the SEP3001 load is activated, start an ACIS CTI measurement with CAP746C. SUMMARY: ---------- The radiation telecon group decided to load and activate the SEP3001 load. There will be another telecon at 9pm tonight to update the radiation environment. ACIS executed CAP746C. As always, everything went excatly as planned. The ACIS-I CCDs plus S2 and S3 look nominal. This will be a long CTI measurement, about 30 ks. 1) Chandra state at the beginning of the Pass UTC 2001:272:18:29:29 (Sep29) f_ACE 1.48e+04 F_CRM 0.00e+00 Kp 4.7 R km 91902A OBT 2001:272:18:28:59 CTUVCDU 14280443 OBC s/w NRML FMT2_NORM CPEstat NORM OBT 118175339.61 ONLVCDU 14280432 OBC Errs 0 OBSID 61455 EPState SUN SIM TTpos -99616 HETG Angle 6.34 PCADMODE NPNT RA 137.003 Bus V 30.87 SIM FApos -467 LETG Angle 77.96 PCONTROL NPNT Dec 40.001 Bus I 19.28 AOFSTAR GUID Roll 57.385 ACA Object SSSSSSSS Dither ENAB HRC-I HV OFF ACA ImFunc TTTTTTTT Dith Yang 7.87 Yaw Rate -0.13 HRC-S HV ON ACA CCD Temp -10.4 Dith Zang 3.26 Pitch Rate -0.01 OBSMode NEXT ACA Int Time 1.698 Roll Rate -0.08 Door OP UNAC AOACSTAT OK FSS SunBeta SUN Door CL UNAC FSS Alfa 1.17 Batt 1 SOC 100.00% Avg HRMA Temp 70.61 FSS Beta 27.83 Batt 2 SOC 100.00% ACIS Stat7-0 67 Avg OBA Temp 51.29 SA Resolv 59.33 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 9.07 RadMon DISA HRMA power 13.60 SCS 128 INAC -Y SA Amps 9.86 EPHIN Geom LARG OBA power 43.20 SCS 129 INAC +Y SA Temp 112.04 E150 6899.5 SCS 130 INAC -Y SA Temp 112.97 E300 181.4 Roll Mom. -5.449 SCS 107 INAC E1300 3.0 Pitch Mom. 21.627 UpL Cmd Acc 56335 EPH A-Leak 1.0200 P4GM 39.7 Yaw Mom. 1.175 Cmd Rej A 3 EPH B-Leak 0.2640 P41GM 0.3 2) Detailed Timeline GMT 272:18:20 AOS 272:18:25 EPHIN rates E150 E300 E1300 P4 P41 6900 180 3.0 39.7 0.3 Yippee, rates are finally below 1/3 of the SCS107 trigger level 272:18:45 EPHIN rates E150 E300 E1300 P4 P41 6805 178 3.1 38.1 0.3 272:18:57 EPHIN rates E150 E300 E1300 P4 P41 6868 180 2.9 34.0 0.5 272:19:05 FP Temp = -119.9 C, Altitude = 94,311 km 272:19:05 EPHIN rates E150 E300 E1300 P4 P41 6946 182 2.8 38.8 0.4 272:19:09 Start Execution of CAP 746C 272:19:10 Enable RADMON 272:19:14 Uplink 1A_CTI000_137.CLD 272:19:15 EPHIN rates E150 E300 E1300 P4 P41 6899 181 2.9 34.2 0.2 272:19:16 Activate SCS 137 272:19:22 verify ACIS startScience command 272:19:32 first bias packets 272:19:34 first CCD bias complete, compression ratio looks nominal 272:19:35 EPHIN rates E150 E300 E1300 P4 P41 6649 174 3.0 34.9 0.5 272:19:45 bias maps complete 272:19:46 first event data, rates look about 68 c/s per CCD, which is nominal, total rate is ~380 c/s 272:19:48 delta overclocks are high as expected I0 -22 -19 -20 -12 I1 -15 -12 -24 -17 I2 -15 -18 -20 -32 I3 -24 -14 -16 -12 S2 -21 -26 -19 -28 S3 -17 -26 -19 -28 272:19:50 threshold crossings are about 12,000-18,000 for the FIs, and 1000 for the BI CCD. 272:19:52 EPHIN rates E150 E300 E1300 P4 P41 6587 171 2.8 34.8 0.1 272:19:55 FP Temp = -119.9 C, alttitude = 98,000 km 272:20:00 Event rates still about 220 cts/frame per chip or 68 cts/s per chip 272:20:20 LOS 3) Chandra state at the end of the Pass UTC 2001:272:20:01:08 (Sep29) f_ACE 1.74e+04 F_CRM 0.00e+00 Kp 5.3 R km 98960A OBT 2001:272:20:00:38 CTUVCDU 14301948 OBC s/w NRML FMT2_EPS CPEstat NORM OBT 118180838.03 ONLVCDU 14301936 OBC Errs 0 OBSID 62861 EPState SUN SIM TTpos -99616 HETG Angle 6.34 PCADMODE NPNT RA 136.996 Bus V 30.40 SIM FApos -467 LETG Angle 77.96 PCONTROL NPNT Dec 39.999 Bus I 28.74 AOFSTAR GUID Roll 57.389 ACA Object SSSSSSSS Dither ENAB HRC-I HV OFF ACA ImFunc TTTTTTTT Dith Yang -7.94 Yaw Rate -0.04 HRC-S HV ON ACA CCD Temp -10.4 Dith Zang -6.36 Pitch Rate -0.07 OBSMode NEXT ACA Int Time 1.698 Roll Rate -0.30 Door OP UNAC AOACSTAT OK FSS SunBeta SUN Door CL UNAC FSS Alfa 1.20 Batt 1 SOC 100.00% Avg HRMA Temp 70.63 FSS Beta 27.77 Batt 2 SOC 100.00% ACIS Stat7-0 64 Avg OBA Temp 51.29 SA Resolv 59.33 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 13.72 RadMon ENAB HRMA power 89.70 SCS 128 ACT -Y SA Amps 14.68 EPHIN Geom LARG OBA power 59.80 SCS 129 ACT +Y SA Temp 111.74 E150 6478.0 SCS 130 ACT -Y SA Temp 112.35 E300 168.8 Roll Mom. -5.524 SCS 107 INAC E1300 2.8 Pitch Mom. 21.451 UpL Cmd Acc 60462 EPH A-Leak 1.0200 P4GM 35.6 Yaw Mom. 1.260 Cmd Rej A 63 EPH B-Leak 0.2680 P41GM 0.4