To:sot_shift from: Dan Schwartz date: 21 Feb 05, 12:00noon EST Subject: SOT shift report 2005-02-21 L2041 -------- See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/web-cxc/htdocs/acis/SOT_reports/Feb_21_2005_L2041.txt. Shift L2041. Start at 052:13:00 GMT = 08:00am 21 Feb EST End 11:00am 21 Feb SOT Lead DAS (Times will be given in GMT on day 052.) PLAN ---- Continue running load FEB2105B. Finish obsid 5838, an ACIS-I GTO observation of the high redshift cluster of galaxies cl0926+1242, from the 400 Square Degree ROSAT PSPC survey. Then obsid 5928, an HRC-I observation of the extragalactic supermassive black hole M31*. No comm this shift. Next Comms: 052:1820 to 1920 053:0250 to 0450 053:1100 to 1200 053:1820 to 1920 054:0415 to 0615 054:1235 to 1335 054:1850 to 1950 055:0300 to 0500 Orbital events: 2005:052:20:01:44.606 766 EAPOGEE ORBIT APOGEE 2005:054:03:45:26.697 766 EPERIGEE ORBIT PERIGEE 2005:055:11:29:25.531 767 EAPOGEE ORBIT APOGEE 2005:056:19:12:43.228 767 EPERIGEE ORBIT PERIGEE 2005:058:02:56:43.488 768 EAPOGEE ORBIT APOGEE 2005:059:10:40:02.246 768 EPERIGEE ORBIT PERIGEE 2005:060:18:23:39.567 769 EAPOGEE ORBIT APOGEE 2005:062:02:07:18.286 769 EPERIGEE ORBIT PERIGEE EVENTS ------ Status at LOS, 052:11:58, was as follows: PCAD MODE = NPNT CONTROL LAW FLAG = NPNT Stars: = 5 FIDS = 3 RA = 141.634 deg Dec = 12.690 deg ROLL = 261.871 deg Format = 2 OBSID = 5838 cl0926+1242 SIM FA = -535 SIM TSC = 89824 (ACIS-I) DITHER = ENAB HETG = OUT (79.09 deg) LETG = OUT (77.59 deg) HRC-S HV is ON EPHIN Geom = LARG E150 = 1.9 E300 = 0.1 E1300 = 0.0 LT 10.0 (RADMON P4GM = 0.0 LT 300. Triggers) P41GM = 0.0 LT 8.47 A-leak = 1.0200 mu-a B-leak = 0.5320 mu-a Ascending through 120414 km. ACIS focal plane temperature -119.7 degC. EPH temp 72.95 degF. NOTES/ISSUES/PROBLEMS SAO is on Federal Holiday today. NGST has a normal workday. SOT MP meeting will be held tomorrow at 11:30am instead of today. Joe DePasquale reports via email: "I've made the space-saving updates to lr, lr_break.pl, lr_bak and lr_break_bak.pl. All scripts will now delete the backstop file and re-gzip the tar file when acis-backstop.pl has finished running (of course, it will also delete the unzipped tar file). This should definitely alleviate the current space issues in the load review directories. . ." From the 9am status meeting: Ten supports over the weekend, 6 34m and 4 26m. DSS-46 had intermittent data for 35 minutes -- swapped equipment to complete support. There was no impact on commanding. Three load segments uplinked, on-board loads good until 056:08:47. FEB2105B loads were approved Friday afternoon, and running now. FEB2805 products expected Tues or Wed. FOT has been noticing the Focus Adjust pulse width modulation increasing by 1 or 2 steps over the past year. This means the motor is driving harder, but the small increase is not a concern. FOT engineering reports that the reaction wheel in flight test at MSFC is experiencing some drag torque increase. Not clear what the implication is for the flight RWA, which have not seen any such increases. The MSFC accelerated life test is at the equivalent of 8 years currently. NGST is involving the Space Park and reaction wheel supplier engineers. FOT quarterly report is expected out next week. Monthly meeting of the full ACIS operations team will be Wednesday at 4pm on the 6th floor (not known if the new MIT conference room will be ready, or if we will be in the open "living room" area). Quick look data: OBSID Target Time Comment ----- ------ -------------- ------- 5540 RX J0806.4-4123 049:04:45 ACIS-I NONE LOOKS OK 6154 PSR J0437-4715 049:10:42 ACIS-S NONE LOOKS OK 5630 2MASS 194915-551012 049:18:37 ACIS-S NONE LOOKS OK 5662 SDSS J101627.32-0007 049:21:49 ACIS-S NONE LOOKS OK 5833 RXCJ1213.3-2617 050:00:03 ACIS-S NONE LOOKS OK 5524 RX J1308.8+2127 050:03:20 ACIS-S NONE CC-mode 6226 Cygnus A 050:05:39 ACIS-I NONE LOOKS OK 5779 cl0958+4702 050:12:54 ACIS-I NONE LOOKS OK 5765 cl0853+5759 050:20:22 ACIS-I NONE LOOKS OK ------------------------------------------------------- Dan Schwartz, MS #3 das@head-cfa.harvard.edu phone: (617)495-7232 FAX: (617)495-7356 cell phone: (617)512-5627 pager: 877-693-7198 PIN 693-7198 or e-mail 6937198@archwireless.net -------------------------------------------------------