To:sot_shift from: Dan Schwartz date: 02 Jan 08, 12:00noon EST Subject: SOT shift report 2008-01-02 L3086 -------- See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/web-cxc/htdocs/acis/SOT_reports/Jan_02_2008_L3086.txt. Shift L3086. Start at 002:13:00 GMT = 08:00am 02 Jan EST End 10:00am 02 Jan SOT Lead DAS (Times will be given in GMT on day 002.) PLAN ---- Continue running load DEC2407B. Do obsid 9424, an ACIS-I observation of the cluster of galaxies A 520 to study the shock front plasma, and a dark matter subcluster which has almost no galaxies. Then resume the ACIS-S series of observations of comet 8P_TUTTLE. Next Comms: 002/2000-2215 2100 2200 DSS-27 GOLDSTONE 1600-1700 EST, Wed 2 Jan 003/0300-0450 0340 0440 DSS-66 MADRID 2240-2340 EST, Wed 2 Jan 003/1000-1215 1100 1200 DSS-54 MADRID 0600-0700 EST, Thu 3 Jan 003/1830-2020 1855 2010 DSS-66 MADRID 1355-1510 EST, Thu 3 Jan 004/0245-0500 0345 0445 DSS-27 GOLDSTONE 2245-2345 EST, Thu 3 Jan 004/1000-1215 1100 1200 DSS-27 GOLDSTONE 0600-0700 EST, Fri 4 Jan Orbital events: 2008:002:07:32:26.482 1161 EAPOGEE ORBIT APOGEE 2008:003:15:15:49.579 1161 EPERIGEE ORBIT PERIGEE 2008:004:23:00:07.111 1162 EAPOGEE ORBIT APOGEE 2008:006:06:43:18.590 1162 EPERIGEE ORBIT PERIGEE 2008:007:14:28:29.389 1163 EAPOGEE ORBIT APOGEE 2008:008:22:11:30.330 1163 EPERIGEE ORBIT PERIGEE 2008:010:05:56:53.996 1164 EAPOGEE ORBIT APOGEE EVENTS ------ Status at LOS, 002:12:29, was as follows: PCAD MODE = NPNT CONTROL LAW FLAG = NPNT Stars: = 5 FIDS = 3 RA = 73.453 deg Dec = 2.902 deg ROLL = 309.087 deg Format = 2 OBSID = 9424 Abell 520 SIM FA = -535 SIM TSC = 92903 (ACIS-I) DITHER = ENAB HETG = OUT (79.09 deg) LETG = OUT (77.21 deg) HRC-S HV is ON EPHIN Geom = SMAL E150 = 47.3 E300 = 6.3 E1300 = 6.6 LT 20.0 (RADMON P4GM = 0.0 LT 300. Triggers) P41GM = 0.0 LT 8.47 Descending through 131034 km. ACIS focal plane temperature -118.4 degC. EPH temp: 101.13 degF EPH 27V: 26.84 NOTES/ISSUES/PROBLEMS From the 9am status meeting: Three supports over the past 24 hours, no issues over the previous past 10 days since the last 9am status meeting. This morning we were unable to log into EHS due to NAS failure. Third string was used to command spacecraft and for GRETA. The CTU command count and command reject A counters unexpectedly were at zero at start of pass. Apparently reset at about 0801. They incremented normally throughout the pass. Will be investigated. JAN0708 loads have not started work, products not ready for review until at least Friday. PLUS this is potentially impacted by the NAS failure. Five eclipses have been completed nominally, with the sixth and last of the current season happening tomorrow. From a meeting on the NAS failure: Apparently a triple disk failure, including one of the hot spare disks. This failure took down the data bases. In worst case, the 1 DEC full backup database will be restored, but it is expected that we can recover at least through 31 Dec. Plan is to proceed with the transition to the NetApp system, NASapp, which had been previously planned for next Tuesday. If not ready for the next pass at 2000 then continue to use the third string. There will be a tagup at 1900 (2pm EST) on the 111159 # prior to the next pass. On-board loads are good through 5 Jan, with products for 6 Jan saved on various backup locations which could be retrieved ad hoc for uplink if databases aren't restored by Saturday. The more significant issue is building the loads for next week, which requires the data bases. Quick look data: OBSID Target Time Comment ----- ------ -------------- ------- 9162 SDSS J092913.96+3757 362:16:25 ACIS-S NONE ok 8036 SSA22 Protocluster 364:11:21 ACIS-I NONE ok 9028 Palomar 2 365:10:36 ACIS-S NONE ok 9294 3C20 365:13:50 ACIS-S NONE ok obsid's 9778 through 9784 of Comet 8P Tuttle have no obvious problems ------------------------------------------------------- Dan Schwartz, MS #3 das@head-cfa.harvard.edu phone: (617)495-7232 cell phone: (617)512-5627 pager: email to 6175125627@vtext.com -------------------------------------------------------