To:sot_shift from: Dan Schwartz date: 26 Feb 07, 12:00noon EST Subject: SOT shift report 2007-02-26 L2776 -------- See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/web-cxc/htdocs/acis/SOT_reports/Feb_26_2007_L2776.txt. Shift L2776. Start at 057:13:00 GMT = 08:00am 26 Feb EST End 10:00am 26 Feb SOT Lead DAS (Times will be given in GMT on day 057.) PLAN ---- Continue running load FEB2607C. Doing obsid 7437, an ACIS-S/HETG observation of the accreting young star TW Hydrae to distinguish X-ray emission from a hot corona vs. an accretion shock, and to probe the density and structure of the magnetic regions. Next Comms: Support (GMT) BOT EOT Station Site Track time (local) 057/1900-2150 1940 2140 DSS-66 MADRID 1440-1640 EST, Mon 26 Feb 058/0250-0505 0350 0450 DSS-27 GOLDSTONE 2250-2350 EST, Mon 26 Feb 058/1020-1235 1120 1220 DSS-27 GOLDSTONE 0620-0720 EST, Tue 27 Feb 058/1910-2100 1950 2050 DSS-46 CANBERRA 1450-1550 EST, Tue 27 Feb 059/1000-1145 1045 1130 DSS-34 CANBERRA 0545-0630 EST, Wed 28 Feb 059/1920-2110 2000 2100 DSS-66 MADRID 1500-1600 EST, Wed 28 Feb Orbital events: 2007:056:14:39:26.877 1043 EPERIGEE ORBIT PERIGEE 2007:057:22:23:28.198 1044 EAPOGEE ORBIT APOGEE 2007:059:06:06:44.725 1044 EPERIGEE ORBIT PERIGEE 2007:060:13:51:46.338 1045 EAPOGEE ORBIT APOGEE 2007:061:21:34:40.949 1045 EPERIGEE ORBIT PERIGEE 2007:063:05:19:09.847 1046 EAPOGEE ORBIT APOGEE 2007:064:13:02:40.251 1046 EPERIGEE ORBIT PERIGEE 2007:065:20:46:36.271 1047 EAPOGEE ORBIT APOGEE 2007:067:04:30:17.487 1047 EPERIGEE ORBIT PERIGEE EVENTS ------ Status at LOS, 057:12:23, was as follows: PCAD MODE = NPNT CONTROL LAW FLAG = NPNT Stars: = 5 FIDS = 3 RA = 165.437 deg Dec = -34.723 deg ROLL = 4.983 deg Format = 2 OBSID = 7437 TW Hydrae SIM FA = -467 SIM TSC = 75623 (ACIS-S) DITHER = ENAB HETG = IN ( 5.96 deg) LETG = OUT (77.59 deg) HRC-I HV is ON EPHIN Geom = SMAL E150 = 45.7 E300 = 4.6 E1300 = 8.3 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 Ascending through 120559 km. ACIS focal plane temperature -118.7 degC. EPH temp: 103.64 degF EPH 27V: 11.83 NOTES/ISSUES/PROBLEMS From the 9am status meeting: Nine supports over the weekend. For one DSS-54 pass, TCP-1 had continuous dropouts, impacting the state-of-health monitoring. Turning off side ranging improved downlink and enabled SOH monitoring. No other issues. Two segments of the FEB2607C schedule were uplinked, on-board loads good until 060:13:00. MAR0507 products expected out this afternoon, for a load review at 2pm tomorrow. Ace solar proton flux is at background level, and solar activity is very low. Recent Quick look data: OBSID Target Time Comment ----- ------ -------------- ------- 7784 SDSS J1302+0030 055:16:02 ACIS-S NONE looks ok 7691 Abell1650 055:19:22 ACIS-I NONE looks ok 8217 JUPITER 055:21:29 ACIS-S NONE moving target, ok 7815 IRAS F18293-3413 056:02:37 ACIS-S NONE looks 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 -------------------------------------------------------