SOT Shift Report 2008-10-29 L3387 Duration: 29 Oct 2008 08:30 EDT - 29 Oct 2008 09:30 EDT 29 Oct 2008 12:30 GMT - 29 Oct 2008 13:30 GMT SOT Lead: Tom Aldcroft ======================================== Plan ---- Continue with the OCT2708B loads: 09112 AX J1732.2-3044 2008:303:15:19:10.674 5.0 ACIS-I NONE 08910 WR 18 2008:303:17:18:38.941 19.8 ACIS-S NONE 08955 NGC 6642 2008:303:23:26:05.404 7.6 ACIS-S NONE 08957 NGC 6553 2008:304:01:45:32.837 5.5 ACIS-S NONE 09056 IGR J17586-2129 2008:304:03:45:12.837 5.0 ACIS-I NONE 10457 ISCS1036+1088 2008:304:05:46:50.787 34.9 ACIS-I NONE Events ------ No comm this shift. Notes from 9am meeting ---------------------- - Supports Completed: 3 (3 34 Meter, 0 26 Meter) - SSR Dumps: 3 - Current Configuration (as of 303/1300): In Radiation Zone NO Current SI ACIS-S Grating NONE Observation ID 10547 Target NGC 57 Altitude 128.4 kkm Asc Radmon Disable 304/17:25z Next Radiation Zone 304/20:59z to 305/06:48z - Next Scheduled Supports (3): Time BOT EOT Site Station Antenna 303/1650-1905 1750 1850 GOLDST DSS-27 34 Meter 304/0230-0445 0330 0430 MADRID DSS-54 34 Meter 304/1100-1315 1200 1300 MADRID DSS-54 34 Meter MP: - NOV0308A products out for review today at 2pm. Eng: - The 6-second eclipse flag event reported yesterday has been understood now to be the result of an unusually low overall current draw on the spacecraft power bus. This met the threshold for the OBC software to set the eclipse flag momentarily. Since SCS 29 was not active there was no impact. The low current is a result of overall spacecraft heating and a confluence of other events. The FOT will investigate a patch to the relevant K-constants to prevent this from recurring. Radiation: - Solar Activity Forecast: Solar activity is expected to be very low. - Geophysical Activity Forecast: Geomagnetic field activity is expected to be at unsettled to active levels during days 1 - 2 (29 - 30 October) due to a recurrent coronal hole high-speed solar wind stream. There will also be a chance for minor storm levels on 30 October. Geomagnetic field activity is expected to decrease to unsettled levels on day 3 (31 October) as coronal hole effects subside. Quicklooks ---------- 9385 cl0340-2840 ACIS-I NONE OK 10744 PDCS-016 ACIS-I NONE OK Snapshot -------- UTC 2008:303:12:01:11 (Oct29) f_ACE 4.49e+01 F_CRM 4.82e+08 Kp 2.0 R km 133775A OBT 2008:303:11:57:42 CTUVCDU 9557503 OBC s/w NRML FMT2_NORM CPEstat NORM OBT 341668662.52 ONLVCDU 9557496 OBC Errs 0 OBSID 10547 EPState SUN SIM TTpos 75624 HETG Angle 79.09 PCADMODE NPNT RA 3.866 Bus V 29.46 SIM FApos -467 LETG Angle 77.21 PCONTROL NPNT Dec 17.333 Bus I 26.72 AOFSTAR GUID Roll 272.004 ACA Object FFFSSSSS Dither ENAB HRC-I HV ON ACA ImFunc TTTTTTTT Dith Yang -7.88 Yaw Rate 0.00 HRC-S HV OFF ACA CCD Temp -19.6 Dith Zang 1.89 Pitch Rate 0.08 SHLD HV 8.0 ACA Int Time 1.698 Roll Rate 0.02 EVT RT 0 AOACSTAT OK FSS SunBeta NSUN SHLD RT 21 FSS Alfa -49.77 Batt 1 SOC 100.00% Avg HRMA Temp 70.65 FSS Beta -49.78 Batt 2 SOC 100.00% ACIS Stat7-0 64 Avg OBA Temp 53.36 SA Resolv 150.84 Batt 3 SOC 100.00% Cold Rad -125.5 OBA Tavg Fault NFLT SA Sun Pres ILLM Warm Rad -84.4 OBA Trng Fault NFLT +Y SA Amps 13.53 RadMon ENAB HRMA power 53.60 SCS 128 ACT -Y SA Amps 12.95 EPHIN Geom SMAL OBA power 70.20 SCS 129 ACT +Y SA Temp 116.22 E150 45.7 SCS 130 ACT -Y SA Temp 118.41 E300 6.2 Roll Mom. 5.697 SCS 107 INAC E1300 7.0 Pitch Mom. -7.338 UpL Cmd Acc 46700 EPH A-Leak 1.0200 P4GM 0.0 Yaw Mom. -7.178 Cmd Rej A 132 EPH B-Leak 1.0200 P41GM 0.0 EPH temp 104.89 Gyro 2 Curr 1 103.20 Roll Bias -0.9767 EPH 27V 26.84 M Unload MON Gyro 2 Curr 2 108.00 Pitch Bias -2.0309 TSC Move STOP Prop. line 03 88.76 Yaw Bias -1.1362 CTX B PWR 36.69 FA Move STOP Prop. line 04 66.25 CTX B Volts 3.54 OTG Move DISA