Shift H73 Start at 276:06:30 GMT = 02:30AM 03 Oct EDT End 276:08:00 GMT = 04:00AM 03 Oct EDT SOT Lead MJ Spac/Aspect FOT/Sci liason HRC GKA ACIS (Times will be given in GMT on day 276. In general times are rough, not precise.) PLAN ---- Running under P20d load Execute CAP 460A (Set HRC SCSs for observations and at rad-zone exit open HRC door and activate antico shield PMT HV) EVENTS ------ 06:30 Started CAP 460A - Enabled SCSs 85, 91, 92, and 93 06:35 Started SOP 62008 "Open HRC door" - loaded required mission SCS 07:31 Start maneuver to CTI measurement attitude 07:34 switch to OBSID 62368 07:35 ACIS sysconfig commands 07:36 ACIS start science 07:40 Resume CAP 460A - Open HRC door 07:45 HRC door open 07:50 HRC antico PMT HV on 07:55 HRC antico PMT HV at operating voltage 08:00 ACIS bias frames complete 08:15 AOS NOTES/ISSUES/PROBLEMS --------------------- Observatory configuration at shift start PCAD MODE= NPNT,NPNT Stars: = 5 FIDS = 0 RA = 119.0156 DEC = +79.5011 ROLL = +69.205 Format = 2 OBSID = 62369 SIM FA = -535 SIM TSC = -99616 (HRC-S) HETG = out, from pot readings (81.34,81.71) LETG = out, from pot readings (81.71,79.84) Pitch = 90.19 deg. ACIS = safe for rad-zone HRC = All HV off, door NOT open All as expected. At attitude for OBSID 62368, ACA acquired only 3 stars HRC antico rates at full HV are ~6500 cts/s. Note that this is the rate at a point earlier after exit from the radiation zone than we have been operating.