To:sot_shift from: Dan Schwartz date: 04 Apr 03, 12:00noon EST Subject: SOT shift report 2003-04-04 L1352 -------- See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Apr_04_2003_L1352.txt. Shift L1352. Start at 094:13:00 GMT = 08:00am 04 Apr EST End 10:30am 04 Apr SOT Lead DAS (Times will be given in GMT on day 094.) PLAN ---- Continue running load MAR3103C. The remainder of the week will be a survey of the Northern NOAO Bootes Deep Field, with 5 ks ACIS-I observations. Heading into perigee passage after the current obsid 4234, then one more complete orbit on the raster survey. Next Comms: 094:1315 to 1415 094:0030 to 0230 095:0945 to 1045 095:2030 to 2130 096:0100 to 0300 096:1100 to 1200 096:1615 to 2015 096:2100 to 2300 097:0715 to 0815 097:2030 to 2130 097:0025 to 0225 098:1315 to 1415 098:2150 to 2350 Orbital events: 2003:095:00:07:10.082 EPERIGEE 505 ORBIT PERIGEE 2003:096:07:51:31.750 EAPOGEE 506 ORBIT APOGEE 2003:097:15:36:00.190 EPERIGEE 506 ORBIT PERIGEE 2003:098:23:19:55.231 EAPOGEE 507 ORBIT APOGEE 2003:100:07:04:40.182 EPERIGEE 507 ORBIT PERIGEE 2003:101:14:48:03.529 EAPOGEE 508 ORBIT APOGEE 2003:102:22:32:27.386 EPERIGEE 508 ORBIT PERIGEE EVENTS ------ Status at AOS, 094:13:18, was as follows: PCAD MODE = NPNT CONTROL LAW FLAG = NPNT Stars: = 5 FIDS = 3 RA = 219.354 deg Dec = 33.663 deg ROLL = 140.782 deg Format = 2 OBSID = 4234 SS37 SIM FA = -535 SIM TSC = 92903 (ACIS-I) HETG = OUT (79.46 deg) LETG = OUT (77.96 deg) HRC-S HV is ON EPHIN Geom = LARG 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 = 0.4760 mu-a Descending through 86973 km. ACIS focal plane temperature -119.1. 1352: Playback complete. 1415: LOS Status at LOS, 094:14:14, was essentially unchanged. Descending through 82364 km. ACIS focal plane temperature -119.1 NOTES/ISSUES/PROBLEMS The PI and OBSERVER for the Bootes survey sends the following note of Thanks for performing the successful survey: "------- Forwarded Message Date: Fri, 04 Apr 2003 10:03:30 -0500 From: Christine Jones-Forman To: fot@head-cfa.cfa.harvard.edu, sot@head-cfa.cfa.harvard.edu Subject: THANKS Hi Folks, On behalf of the Bootes survey team (which includes quite a few people from HEAD and CfA as well as people at Ohio U and NOAO and Arizona), I wanted to thank each of you for the work that you did to get this big survey done. We are already analyzing the data and it looks great! Thanks, Christine ------- End of Forwarded Message" Note the warm ACIS focal plane temperature, heading into the CTI measurement. Note the start of Daylight savings time at 1am local standard time, Sunday April 6. (This is "late Saturday night" for some people.) Set your clock one hour ahead. Subsequently, GMT will be only 4 hours ahead of local EDT. From the 9am status meeting: Three supports, no issues. On-board loads good through 097:08:34, the end of the current week's load. Load APR0703B for next week has been approved, and will start to be uploaded at the next pass. Yesterday afternoon the Gyro #1 yellow current limits tripped at 150ma. Current jumped from about 128ma of the day before, and became extremely noisy, varying from about 135 to 170ma. In the current real time pass, it seems to be at 140 +/- 4 ma. The bias has remained constant throughout this time. Telecon at 1pm EST today, 405 244 5060 #1165 for further discussion. Quick look data: OBSID Target Time Comment ----- ------ -------------- ------- NOAO/Bootes survey fields: SD50,SS26, SD29, F17, F36, F63 F48, F44, SS14, SS53, F23: There are no recognizable targets, but no obvious problems. These targets seem to be systematically getting ~500 s more time than scheduled. Is this due to quick settling of acquisition, or to not taking additional bias? ------------------------------------------------------- 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 -------------------------------------------------------