To:sot_shift from: Dan Schwartz date: 30 Jun 03, 12:00noon EDT Subject: SOT shift report 2003-06-30 L1439 -------- See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Jun_30_2003_L1439.txt. Shift L1439. Start at 181:12:00 GMT = 08:00am 30 Jun EDT End 10:30am 30 Jun SOT Lead DAS (Times will be given in GMT on day 181.) PLAN ---- Continue running load JUN3003B. Finish obsid 3865, ACIS-I observation of the supernova remnant G54.1+0.3, which is extremely similar to the Crab Nebula except that pulsations have not been observed. Then make ACIS cti measurements surrounding perigee passage. Next Comms: 181:1315 to 1415 181:2140 to 2340 182:0610 to 0710 182:1320 to 1420 182:2035 to 2135 183:0310 to 0410 183:1105 to 1205 183:2030 to 2130 184:0615 to 0715 184:1125 to 1325 184:2350 to 0050 Orbital events: 2003:182:06:31:14.791 538 ORBIT PERIGEE 2003:183:14:14:23.638 539 ORBIT APOGEE 2003:184:21:59:19.216 539 ORBIT PERIGEE 2003:186:05:42:29.158 540 ORBIT APOGEE 2003:187:13:26:32.254 540 ORBIT PERIGEE EVENTS ------ Status at LOS, 181:07:30, was as follows: PCAD MODE = NPNT CONTROL LAW FLAG = NPNT Stars: = 5 FIDS = 3 RA = 292.650 deg Dec = 18.881 deg ROLL = 161.332 deg Format = 2 OBSID = 3865 SNR G54.1+0.3 SIM FA = -535 SIM TSC = 92903 (ACIS-I) DITHER = ENAB HETG = OUT (79.46 deg) LETG = OUT (77.59 deg) HRC-S HV is ON EPHIN Geom = LARG E150 = 0.5 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 = 0.6720 mu-a Gyro 1 Curr 1 151.20 Gyro 1 Curr 2 100.80 Descending through 123357 km. ACIS focal plane temperature -119.7. 13:16 AOS. Status is essentially unchanged. Gyro 1 Curr 1 151.20 Gyro 1 Curr 2 100.80 Descending through 110129 km. ACIS focal plane temperature -119.7. 14:14 LOS. Status is essentially unchanged. Gyro 1 Curr 1 148.80 Gyro 1 Curr 2 100.80 Descending through 107193 km. ACIS focal plane temperature -119.4. NOTES/ISSUES/PROBLEMS Work is beginning in the TST room for removing the door and enlarging the opening, to enable the Ball ground support equipment to be rolled in. From the 9am status meeting: Eight supports over the weekend. The DSS-66 contacts were cancelled due to both their transmitters being down. Three load segments were uplinked, on-board loads good until 185:10:35. The JUL0703 week is being worked. First load review will probably be on Wednesday (Note holiday on Friday -- want to approve by Thursday). ASVT testing of safe mode proceedures not successful Friday. Due to problem with ONLS 3.9.3 the first step of switching the gyros to high rate mode could not be executed. This ASVT testing will resume tomorrow, using 3.8.2. ASVT testing of the eclipse patches will proceed today. As noted in the Friday SOT shift report 2003-06-27 M1436, "it was decided to roll back the ONLS (3.9.3) to the previously running version following this pass. Problems have been encountered in which certain command scripts fail to process correctly, resulting in no commands being sent and hanging the process. At this time the root cause has not been identified." Quick look data: OBSID Target Time Comment ----- ------ -------------- ------- 3964 MRK 1044 175:07:20 HRC-S LETG Looks good 4098 SDSS J014812.23+0001 176:11:19 ACIS-S NONE Looks good 3891 AX J1845-0258 177:07:20 ACIS-S NONE nothing visible due to color mapping choice 3499 RCRADARKCLOUD 177:13:21 ACIS-I NONE Looks good 3892 AX J1845-0258 178:00:39 ACIS-S NONE Looks good 3910 G11.2-0.3 178:04:53 ACIS-S NONE Looks good 3799 NGC 6440 178:09:15 ACIS-S NONE Looks good 4077 NGC 5728 178:16:23 ACIS-S NONE Looks good 4208 DLS J0522-4820 178:22:19 ACIS-I NONE target center in chip gap 4125 87GB 1342+5518 181:02:00 ACIS-S NONE Looks good ------------------------------------------------------- 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 -------------------------------------------------------