Jul_25_2001_L734.txt Shift M734 Start at 2001:206:18:00:00 GMT = 2001 Jul 25 02:00pm EDT End 2001 Jul 25 04:00pm EDT SOT shift report 2001-07-25 M734 See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Jul_25_2001_M734.txt SOT Lead Mark Freeman SOT SC/ACA FOT-SI HRC-SI ACIS-SI OTHER Plan: - Running JUL2301C on ascending leg after perigee passage. Perform two calibration observations of the white dwarf HZ43 to monitor the low energy response of the HRC-I (obsids 1001 and 1005). Dark moon observations take place late tonight. Replan underway for 2 Target of Opportunity observations of the dwarf nova WZ Sge, to be done this week: 20 ksec with HRC-S/LETG (2504) and 5 ksec with ACIS-S/NONE (2508). The plan is to intercept the current load during the 'DQ HERCULIS' observation (obsid 1899) at 208:0244. The ACIS observations of the moon will not be affected. Current ACE solar proton flux levels are low (under 50). Kp is 2.7. LETG Retract at 1851 GMT bSeq # ObsID It Target start time SI Grat RA dec roll slew -------------------------------------------------------------------------------------------------- 290082 01001 00 HZ43 2001:206:12:43:54.397 5.1 HRC-I LETG 199.0785 29.1209 259.53 9.80 290086 01005 00 HZ43 2001:206:14:17:24.397 15.3 HRC-I LETG 199.0438 28.9570 259.52 0.17 700241 01625 00 3C348 (HERCULES A) 2001:206:19:00:24.397 15.3 ACIS-S NONE 252.7765 5.0122 242.85 56.09 ORBITAL EVENTS: 2001:207:12:45:36.613 272 EAPOGEE ORBIT APOGEE EVENTS DONE OBSID -------------- ---- ----- Start Shift 206:1800 AOS DSS-66 (Madrid 26m) 1825 Status at AOS was nominal (see note 1) 1829 1005 Loss of telemetry due to station 66 problems 1835 LETG retact (see note 3) 1851 Resume telemetry (somewhat erratic) 1905 LOS DSS-66 206:1925 Did not get good dump this pass. See note 4. End of shift 206:2000 NOTES/ISSUES/PROBLEMS --------------------- 1) Status at AOS: UTC 2001:206:18:29:21 (Jul25) f_ACE 1.36e+01 F_CRM 0.00e+00 Kp 2.7 R km 104895A OBT 2001:206:18:28:48 CTUVCDU 8804351 OBC s/w NRML FMT1_EPS CPEstat NORM OBT 112472928.22 ONLVCDU 8804336 OBC Errs 1 OBSID 1005 EPState SUN SIM TTpos -50505 HETG Angle 79.84 PCADMODE NPNT RA 199.039 Bus V 30.87 SIM FApos -715 LETG Angle 4.46 PCONTROL NPNT Dec 28.963 Bus I 29.25 AOFSTAR GUID Roll 259.521 ACA Object FFFSSSSS Dither ENAB HRC-I HV ON ACA ImFunc TTTTTTTT Dith Yang -19.98 Yaw Rate 0.06 HRC-S HV OFF ACA CCD Temp -10.4 Dith Zang 19.43 Pitch Rate -0.12 OBSMode OBSV ACA Int Time 1.698 Roll Rate -0.07 Door OP UNAC AOACSTAT OK FSS SunBeta SUN Door CL UNAC FSS Alfa -0.18 Batt 1 SOC 100.00% Avg HRMA Temp 70.58 FSS Beta 22.67 Batt 2 SOC 100.00% ACIS Stat7-0 67 Avg OBA Temp 51.29 SA Resolv 67.27 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 85.80 SCS 128 ACT -Y SA Amps 14.88 EPHIN Geom LARG OBA power 154.40 SCS 129 ACT +Y SA Temp 108.17 E150 0.9 SCS 130 ACT -Y SA Temp 108.70 E300 0.1 Roll Mom. -6.018 SCS 107 INAC E1300 0.0 Pitch Mom. 3.535 UpL Cmd Acc 35192 EPH A-Leak 0.8600 P4GM 0.0 Yaw Mom. -6.854 Cmd Rej A 246 EPH B-Leak 0.1560 P41GM 0.0 Current Data: UTC 2001:206:18:29:24 (Jul25) f_ACE 1.36e+01 F_CRM 0.00e+00 Kp 2.7 R km 104895A Currently scheduled FPSI, OTG : HRC-I LETG Costello Kp : 2.67 ACE EPAM P3 Proton Flux (p/cm^2-s-sr-MeV) : 1.36e+01 Orbit Start Time : 2001:206:05:04:00 Geocentric Distance (km), Orbit Leg : 104827 A CRM Region : 3 (Magnetosphere) External Proton Flux (p/cm^2-s-sr-MeV) : 1.56270000000e+03 Attenuated Proton Flux (p/cm^2-s-sr-MeV) : 0.00000000000e+00 External Proton Orbital Fluence (p/cm^2-sr-MeV) : 1.41536119500e+09 Attenuated Proton Orbital Fluence (p/cm^2-sr-MeV) : 0.00000000000e+00 3) Quick look data: Seq # ObsID Target start time SI Grat Comment ------------------------------------------------------------------------------- 200094 1866 LYNDS 1551 2001:204:05:05:37.000 81ksec ACIS-I NONE Looks fine 600151 2017 M32 2001:205:05:04:57.000 53ksec ACIS-S NONE Looks OK 3) During the brief periods we had solid telemetry after the LETG move at 18:51 GMT, it showed to be retracted and there were no OBC errors, indicating a proper execution of the new on-board software. Once we have good dump data (see note 4), this will be confirmed. The OBC error shown in the snapshot above is not related (it is a common one related to a call to SCS 91 and cleared a few minutes later). 4) Once again we experienced problems with DSS-66. We did not have telemetry during the LETG retract, nor did we get a good SSR dump. It looks likely that we will roll over to SSR-B since the dump this morning also failed.