To:sot_shift from: Dan Schwartz date: 04 May 09, 10:00noon EDT Subject: SOT shift report 2009-05-04 L3574 -------- See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/web-cxc/htdocs/acis/SOT_reports/May_04_2009_L3574.txt. Shift L3574. Start at 124:12:00 GMT = 08:00am 04 May EDT End 10:00am 04 May SOT Lead DAS (Times will be given in GMT on day 124.) PLAN ---- Continue running load MAY0409B. Emerge from perigee and do obsid 9336, a GTO ACIS-I observation of SPT-CL0547-5345, a cluster of galaxies found by the South Pole Telescope, to find massive clusters for followup studies of dark energy. Then do obsid 9938, an ACIS-S/HETG observation of IM Lup, a transition object between the classical T Tauri star phase and the weak-lined T Tauri phase, to study the accretion, abundances, and plasma diagnostics associated with the disk dispersal. Next Comms: 124/1835-2050 1935 2035 DSS-65 MADRID 1535-1635 EDT, Mon 4 May 125/0615-0745 0700 0730 DSS-24 GOLDSTONE 0300-0330 EDT, Tue 5 May 125/1315-1530 1415 1515 DSS-65 MADRID 1015-1115 EDT, Tue 5 May 125/2220-0035 2320 0145 DSS-54 MADRID 1920-2145 EDT, Tue 5 May 126/1130-1320 1210 1310 DSS-46 CANBERRA 0810-0910 EDT, Wed 6 May Orbital events: 2009:124:04:39:57.201 1345 EPERIGEE ORBIT PERIGEE 2009:125:12:23:07.096 1346 EAPOGEE ORBIT APOGEE 2009:126:20:06:33.951 1346 EPERIGEE ORBIT PERIGEE 2009:128:03:50:02.733 1347 EAPOGEE ORBIT APOGEE 2009:129:11:33:16.390 1347 EPERIGEE ORBIT PERIGEE 2009:130:19:17:35.136 1348 EAPOGEE ORBIT APOGEE 2009:132:03:00:54.620 1348 EPERIGEE ORBIT PERIGEE 2009:133:10:46:07.816 1349 EAPOGEE ORBIT APOGEE EVENTS ------ Status at LOS, 124:12:04, was as follows: PCAD MODE = NPNT CONTROL LAW FLAG = NPNT Stars: = 8 FIDS = 0 RA = 85.998 deg Dec = -53.998 deg ROLL = 223.235 deg Format = 2 OBSID = 57125 perigee attitude SIM FA = -535 SIM TSC = -99616 (HRC-S) DITHER = ENAB HETG = OUT (79.09 deg) LETG = OUT (77.21 deg) HRC-S HV is ON EPHIN Geom = VLD E150 = 46 800000 (RADMON E1300 = 99 1000 DISABLED) MPC = 0 ANTI-CO = Descending through 75085 km. ACIS focal plane temperature -119.7 degC. EPH temp: 102.38 degF NOTES/ISSUES/PROBLEMS From the 9am status meeting: Nine supports over the weekend. No issues. Two stored command segments uplinked, on-board loads good until 128:19:52. MAY1109 products in work. Won't be released before tomorrow. CAP was approved to uplink MUPS parameter changes for a test firing. However the CAP was not executed because further examination of the ASVT test data revealed a build up of body rates higher than expected. Suspect the feed-forward torque not being computed correctly and will need another K-constant change. Further ASVT testing and code examination being done this week. Quick look data: OBSID Target Time Comment ----- ------ -------------- ------- 10533 NGC 1961 121:02:56 ACIS-I NONE target not obvious 10062 Circinus X-1 121:20:32 ACIS-S NONE OK 10147 1RXSJ070424.9-482639 123:00:49 ACIS-S NONE OK 10812 V454 Cep sub-cluster 123:02:15 ACIS-I NONE OK 10906 Tycho's SNR 123:09:37 ACIS-I NONE OK ------------------------------------------------------- Dan Schwartz, MS #3 das@head-cfa.harvard.edu phone: (617)495-7232 cell phone: (617)512-5627 pager: email to 6175125627@vtext.com -------------------------------------------------------