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: http://www.stsci.edu/smov/notes/0304smov.html
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STATUS REPORTS 1. Observatory Status MOSES status reports: - All observatory subsystems all nominal 2. WFPC2 Status - Engineering status is nominal. The scheduled DECON was performed last night and the instrument is re-cooled to -88C. - Science status - nominal. The latest UV throughput measurements are reducing the error bars enough to conclude that there is small amount of excess contamination buildup. The UV loss rate is now reported at 1.1%/day, +/- 0.3%), compared to pre-SM2 rate of 0.7%/day. This amount is not considered serious enough to resume bright-Earth avoidance (BEA) or to prevent the resumption of Cycle 6 science and ERO on March 6. Howver WFPC2 has requested an earlier decontamination, in two weeks instead of four. (The calendar changes have already been requested and made.) 3. NICMOS Status - Engineering status - Yesterday's discussions produced an approach to today's Pre-Alignment Check-Out (7134, which called for the Pre-postioning of the PAM during the day Monday, after which NICMOS would be brought down to BOOT mode where it is not susceptible to SAA-induced SUSPENDs. These activities were performed per the plan. Then this morning, TDRSS links were acquired/extended which allowed reconfiguring the instrument to Operate in preparation for the Pre-Alignmnent Check-Out via stored commanding. This is thought to be a relatively robust plan that reduces the chances of losing the activity to an SAA-induced anomaly. However, the consensus was that, should another anomaly occur while in OPERATE prior to the start of the activity later in the morning, NICMOS would be left in SUSPEND mode rather than recovered under time pressure. - Science status - Further discussions yesterday also resulted in changes to the Coarse Corrector Alignment Proposal (7041), scheduled in SMS069, which succeeded in moving several visits into SAA-free zones. (The proposal had been scheduled in this calendar before the SAA susceptibilities were known.) This was achieved at the expense of some previously scheduled WFPC2 Cycle 6 science. - It was also decided to remove the SAA Contour Test (7036) from the SMSs 072 and 079, and to redesign it for much shallower SAA penetration as a means of mapping NICMOS-specific SAA contours. - Other downstream NICMOS proposals are being reviewed for any other changes that may be made necessary by the SAA susceptibilities. 4. STIS Status - Engineering Status - Nominal - The MAMA LVPSs remain off indefinitely, pending further investigation by BASD. The BASD life-testing of the Band 2 spare, mentioned in yesterday's notes, is deemed by the PI to be a lower priority than the on-going LV/HV health and safety analysis that are needed to proceed operationally with MAMA SMOV. - Science Status - As reported yesterday, the first STIS external observation, a star field viewed by the CCD for the purpose of STIS/FGS alignment (7065) looks quite good. In addition, the data from the first STIS CCD UV monitor (7063) has been received and looks nominal. 5. FGS status - no activity - The first FGS1R activity (7026, visit 1) was successfully executed yesterday morning. HDOS and STScI reported that the "miss distance" was approximately 7 arcseconds, which is "not bad." The PMT counts are as predicted. The y-axis shows a 1-mm decenter and the x-axis a 0.1-mm decenter. A commanding problem prevented the ITS position test; this has already been corrected for performance in a later visit of this proposal. Analysis continues prior to next week's scheduled FF3 moves and S-curve measurements. 6. FOC/COSTAR status The FOC non-COSTAR baseline throughput measurements (7012) were successfully executed. The data have been received and archived. The images and PSF look normal (pre-COSTAR), though the data have not yet been analyzed in detail. PLANNING REPORTS 1. Status of Upcoming SMSs - SMS062 - Currently executing. - SMS065 - Signed off, ready for uplink. - SMS069 - Final Mode products are out for review. This SMS was rebuilt last night to include the NICMOS changes mentioned above. - SMS072 - Rebuilt without the NICMOS 7036 mentioned above. - SMS076 - Built and initials out for review - SMS079 - Initial build complete. This SMS currently contains the 1st part of the MAMA HV turn-on, per the nominal plan. 2. Replans - NICMOS 7041 was modified withing SMS069. NICMOS 7036 was removed, for rework, from the SMS072. OPERATIONS STATUS 1. OPUS - Nothing new to report. 2. Archive - A problem in getting STIS reference files out of the archive is being worked.
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