To:sot_shift from: Dan Schwartz date: 04 May 06, 12:00noon EDT Subject: SOT shift report 2006-05-04 L2478 -------- See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/web-cxc/htdocs/acis/SOT_reports/May_04_2006_L2478.txt. Shift L2478. Start at 124:13:00 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 MAY0106C. Finish obsid 7329, an ACIS-S observation of the cluster Abell 2597 to study the "tunnel" driven into the X-ray gas by radio outbursts. Then do ACIS cti monitoring surrounding perigee passage. Next Comms: 124:1200 to 1300 124:2200 to 2300 125:0345 to 0445 125:1350 to 1450 125:2200 to 2300 126:0345 to 0445 126:1200 to 1300 126:2200 to 2300 127:0345 to 0445 127:1200 to 1300 Orbital events: 2006:124:03:12:54.742 931 EAPOGEE ORBIT APOGEE 2006:125:10:56:36.146 931 EPERIGEE ORBIT PERIGEE 2006:126:18:40:41.016 932 EAPOGEE ORBIT APOGEE 2006:128:02:24:18.125 932 EPERIGEE ORBIT PERIGEE 2006:129:10:08:06.259 933 EAPOGEE ORBIT APOGEE 2006:130:17:51:56.031 933 EPERIGEE ORBIT PERIGEE EVENTS ------ Status at LOS, 124:12:58, was as follows: PCAD MODE = NPNT CONTROL LAW FLAG = NPNT Stars: = 5 FIDS = 3 RA = 351.346 deg Dec = -12.119 deg ROLL = 118.603 deg Format = 2 OBSID = 7329 Abell 2597 SIM FA = -467 SIM TSC = 75623 (ACIS-S) DITHER = ENAB HETG = OUT (79.09 deg) LETG = OUT (77.59 deg) HRC-S HV is ON EPHIN Geom = SMAL E150 = 45.7 E300 = 4.0 E1300 = 8.1 LT 20.0 (RADMON P4GM = 0.1 LT 300. Triggers) P41GM = 0.0 LT 8.47 A-leak = 1.0200 mu-a B-leak = 0.0000 mu-a Descending through 118586 km. ACIS focal plane temperature -119.7 degC. EPH temp: 102.38 degF EPH 27V: 12.81 NOTES/ISSUES/PROBLEMS From the 9am status meeting: Three supports over the past day, no issues. CAP 425F was run to perform the EIA sequencer-A self-test, which was successful. MAY0806A products were reviewed. MAY0806B products were issued and email review to be completed this morning, with the anticipation they will be approved. ACE solar proton rates are low, no indication of effects from Monday's CME. A review of the Radiation Effects study was presented yesterday afternoon. Chandra does not expect to see debilitating failures due to radiation damage of electronics through at least 15 years on orbit. This brief summary belies a very large effort led by Paul Viens and Eric Martin over the last two years, with Steve O'Dell, Adrian Sun, Daniel Lo, Paul Pohlen, Howard Spitzer, and Dennis Thompson. See: http://occweb.cfa.harvard.edu/occweb/FOT/engineering/investigations/tota l_dose_radiation_study/Rad_env_telecon_20060503/radiation_modelling&anal ysis_results_final.pdf Quick look data: OBSID Target Time Comment ----- ------ -------------- ------- 5749 RXC J1852.1+5711 123:03:46 ACIS-I NONE looks good 6370 RX J1713.7-3946 NW 123:13:11 ACIS-I NONE looks good 6640 Sgr A* 123:22:44 ACIS-I NONE looks good ------------------------------------------------------- Dan Schwartz, MS #3 das@head-cfa.harvard.edu phone: (617)495-7232 cell phone: (617)512-5627 pager: email to 6175125627@vtext.com -------------------------------------------------------