Sep_06_1999_M47.txt Shift M47 Start at 1999:249:18:00:00 GMT = 1999 Sep 06 2:00pm EDT End 1999 Sep 06 10:00pm EDT SOT Lead Bill Podgorski/Paul Plucinsky SOT SC/ACA Bill Podgorski FOT-SI HRC-SI ACIS-SI Paul Plucinsky Plan: Run P11 Load. Status/Plans: ------------ - LETG was retracted at ~GMT 249:12:00; the retraction did enduce a measureable motion of the spacecraft. The Kodak engineers believe they understand this and are writing a flight note on it. - Enter radiation belts at 249:10:27:52 - ACIS-I is put back at the focal position - Exit radiation belts and start first ACIS observation at 249:19:58:28 (OBSID = 50) - AOS through Madrid at 22:30 - confirmed that OBSID 50 was in progress, WT000192014 is the current PB, the I-array is up. Since this is the first science run after perigee, the delta overclocks are rather high, ranging from -23 on I0c3 to -72 on I2c3. - LOS Through Madrid at 23:30 EVENTS DONE OBSID -------------- ---- ----- Start Shift 249:1800 62391 ----- Out of Contact------ In radiation since 249:1000 Start maneuver to ETA CARINAE 249:1937 Change OBSID to 50 249:1940 50 SIM TSC to 92905 249:1951 SIM FA to -536 249:1956 AOS DSS61 249:2230 ----- Real time------ Running ACIS-I observation 50 249:2250 Had 5 stars & 3 FIDS SIM FA = -535, SIM TSC = 92903 ACIS in proper mode (see above) LOS DSS61 249:2350 ----- Out of Contact------ ACIS stop science 249:2343 Maneuver to next target 249:2343 Change OBSID to 1249 249:2346 1249 ACIS start science 249:2358 End of shift 250:0200 NOTES/ISSUES/PROBLEMS --------------------- 1) The next load (P12) is in production. It is shaping up much faster than P11, due to the lessons learned in P11. The beginning of this DOT will put the LETG back in and more data will be acquired with LETG/HRC-S. This will be a COMPLICATED DOT from the ACIS standpoint. We will execute many ERs during this one and therefore this DOT will need a careful review. This DOT will include the 4 science runs at -110 C in Event Histogram Mode observing the external cal source with the command and data clocks enabled and disabled. It will include 4 CAL ERs from science mission planning while HRC-I conducts four 20ks observations. And it will include 2 ACT ERs which will command long Event Histogram runs while the HRC-I performs short (2-3ks) observations back-to-back. So, a lot of commanding for us to check. Tomorrow, TUESDAY the 7th will be a big review day (PPP). 2) Load P13 may include a coordinated Chandra/HST observation with HRC-S/LETG. So, we will have one more shot to get the science runs for -120 C done while in FMT 1 while an HRC-S observation is ongoing(PPP). 3) Products for P12 available on ehs system at: /ehs/ofls/build/bin/mps/output/M251:1220 (output schedule products) /ehs/ofls/build/bin/cm/output/C251:1404 (output command loads)