Subject: July_26_99_B.txt Shift B4 Date: Tue, 27 Jul 1999 21:27:32 -0400 From: Ed Kellogg July_26_99_B.txt Shift B4. Start at 208:13:20 GMT = 9:20am 27 July 99 End 9:19pm 27 July SOT Lead EMK Spac/Aspect MDF FOT/Sci liason AN HRC KD,AR ACIS YB (Times will be given in GMT on day 207. In general times are rough, not precise.) PLAN Complete IRU bias dwell Earth scan 8 ACIS CCD checkout EVENTS 208:15:00 Contacted Gordon Garmire at Max Rosenthal's request to have Gordon attend a meeting on ACIS door opening to be held later today. 15:45 Patch to squirt results in reduction of dropouts at ACA W/S from several/hr to ~one/hr. 15:52 SOC review of procedures for ACIS CCD checkout shows a command load not uploaded in SOP 61024. This will be corrected in a CAP. 17:25 Long discussion about checking ACIS commands for SOP 0X004-Prep for Radiation. How to check it? Since checking the hex as requested by mission planning is not feasible, we plan to have ACIS monitor this ATS at 209:12:45, A6 shift, and verify that the correct commands are echoed by ACIS in the tlm. ~22:00 start ACIS CCD checkout. 22:23 requested obsid 62797. This covers SOP 61030, changing FP temp to -90 CAP 89 SOP 61027, Load Standard Patches SOP 61024, ACIS Video Diagnostic, 1st half CAP 86 23:18 changed obsid to 62796, 2nd half of DIAG_SCS 23:41 finishes DIAG_SCS, change obsid to 62795 23:43 start 61054_RAW_DATA, collecting raw data from each ACIS CCD NOTES/ISSUES/PROBLEMS Extensive discussion about how to handle the ACIS door opening. There is a tradeoff between opening the door after the same number of elapsed days as in previous tests, ~13, vs. waiting until after all propellant-related activities, ~16 days or possibly more, to avoid risk of contamination. More discussion is scheduled tomorrow. We need to conduct well-organized reviews of new procedures for the SI's, if that hasn't already happened. On this shift, the SI rep, Andy Northrup, ACIS Bev Lamarr and Kathy Daigle spent two hours in the conference room making sure we had the right versions of SOPs, and SOC had the same version, as well as checking scripts. We found errors in SOPs 61024, 61030,and 61053, whereas 61027, 61054 and 61052 had no errors detected. Since the CM system is not yet perfected, it's very easy to find different versions of SOP's and scripts in the hard copy books vs. the tar file.