Aug_16_1999_M26.txt Shift M26 Start at 1999:228:18:00:00 GMT = 1999 Aug 16 02:00pm EDT End 1999 Aug 16 10:00pm EDT SOT Lead Bill Podgorski SOT SC/ACA Rob Cameron/Tom Aldcroft FOT-SI Eric Martin HRC-SI ACIS-SI Paul Plucinsky/Yousef Butt Plan: Running on the daily load segment 2. Complete ACIS-S crude optical axis measurements. Start ACA Field distortion measurement. EVENTS DONE OBSID -------------- ---- ----- Start Shift 228:1800 ACIS-S Crude Optical Axis Determination Yoff = -3.0, Zoff = 2.8 228:1828 1059 Yoff = -1.4, Zoff =-1.4 228:1915 1060 Yoff = -3.0, Zoff =-2.8 228:2001 1061 Yoff = 1.4, Zoff =-1.4 228:2047 1062 Yoff = 2.8, Zoff =-2.8 228:2134 1063 Dump start 228:2207 ACA Field Distortion Measurement 228:2220 1266 Dump stop 228:2300 Maneuver to M7 (6 deg shift in roll) 228:0041 End shift 229:0200 NOTES/ISSUES/PROBLEMS --------------------- 1) 3:00pm Status Meeting: This meeting will be held every Monday, Wednesday and Friday to go over mission status. Points made were: - Current load runs thru 229:1700 (1:00pm EDT Tuesday) - Need to plan for getting dump data analyzed quickly for optical axis determination. - Need this data for ACA Plate focus measurements to be done in segment 3 load starting day ~229:1900. - Offline aspect solution improving. Is as good as on-board now, but needs to be better than on-board. Will keep working various issues. 2) HRC-I HV Turn-on planning meeting: - Decided to allot 1 hour for HRC-I HV turn-on, approx. 229:1810 - 229:1910 - OBSID for this activity will be 62449 - To be done in real time contact via CAP, written by HRC team - HRC CAP will go to format 1 for this activity, then return to format 2. - Discussion of risks was held. HRC will turn off all HV, incl anti-coincidence shield HV, manually several hours before entry into rad zone. Existing SCS's do not turn off anti-co HV. 3) Continued problems with star acquisition. Being worked actively.