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HST

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STIS (SM-2) uses MAMA detectors which are UV sensitive ... IRAF/MIDAS/SAOimage/IDL. 7th Annual GSC-II Project Meeting. C. B. A. S. NGST Operations Concept ... – PowerPoint PPT presentation

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Title: HST


1
HST NGST Operations
  • Brian McLean
  • 22nd October 2001

2
HST Operations
  • Bright object protection
  • STIS (SM-2) uses MAMA detectors which are UV
    sensitive
  • cannot have a blue star in STIS aperture for ANY
    HST pointing
  • Also ACS (SM-3b) and COS (SM-4)
  • GSC-II and DSS-II is integrated into APT
    (Astronomers Proposal Tool)

3
HST Operations
  • Updated Positions
  • proper motions of guide stars starting to affect
    target acquisitions for smaller apertures
  • Proposed switch from GSC-I to GSC-II in cycle 12
  • More recent epoch and availability of proper
    motions
  • System-wide implications
  • Coordination of GO Phase 2, scheduling, execution
  • WCS issues
  • DSS headers (with GSC-II astrometry)
  • Requires proposed enhanced WCS in FITS standard
  • Backward compatibility with image tools
  • IRAF/MIDAS/SAOimage/IDL

4
NGST Operations Concept
  • Guide Star Availability Study (Spanga)
  • GSC-II has sufficient GS density in IR
  • 95 probability, 4x4 FOV, Klt17
  • 2MASS has IR colours
  • Integrate GSC-II 2MASS for NGST operations
  • Canadian Space Agency selected for Guider work
    package
  • Options use section of primary IR detector or
    provide separate instrument.
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