<IRMS mini-Study Team Meeting #8 >

Date: Tues, Nov 29, 2011
Time: 9-9:30am PDT
Location: Various

Participation (update as appropriate)

Attending: N. Konidaris, B. Weber
Call-in: R. Dekany


  • 888-387-8686
  • Conference participant ID: 746-0475

Agenda (tentative)

  • 0900 - 0910 Management update - Rich
  • 0910 - 0930 Technical updates - All


  • We discussed the basic architectural options for the OIWFS
    • Strategy is to evaluate the performance vs. sky coverage for a 'one-side', no-incursion, external-to-the-dewar patrolling sensor (similar to IRIS OIWFS), and then address any performance shortfall if necessary
      • Rich will engage with Brent and Co. to get this started by Dec 2 (hopefully), but in practice this will depend on the weather at Palomar summit
    • Possible avenues for larger sky coverage if needed:
      • Allow some incursion into spectroscopic FoV (probably diminishing gains because an external patroller is so far from focal plane)
      • 'Two-sided' dual OIWFS to patrol each side without incursion
    • Focus sensing strategy may impact performance as well (e.g. 2x2 SH WFS v. pyramid v. separate (slower) focus sensor(s))

Meeting schedule

  • The next IRMS team meeting will be in 2 weeks: Tuesday, Dec 13 at 9a.

Outstanding Actions

  • Rich to work with TMTO (Brent) to assess suitability of external OIWFS in terms of sky coverage and performance (by Dec 2)
  • Rich to make written request to WMKO (Sean) to support MOSFIRE cost detail in support of the IRMS estimate (by Dec 15)
  • Rich to contact UCLA (Ian) to request UCLA detail MOSFIRE cost breakdown (by Dec 10)
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Topic revision: r2 - 2011-11-29 - RichardDekany
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