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---++[[112911_Team_Meeting_8][<]]IRMS mini-Study Team Meeting #9 [[120103_Team_Meeting_9][>]] Date: Tues, Jan 03, 2012<br> Time: 9-9:30am PDT<br> Location: Various <br> *Participation (update as appropriate)* |*Attending*: N. Konidaris, B. Weber, R. Dekany| |*Call-in*: | |*Unavailable*: K. Matthews| *Dial-in* * 888-387-8686 * Conference participant ID: 746-0475 *Agenda (tentative)* * 0900 - 0910 MOSFIRE update - Bob * 0910 - 0930 Review of IRMS status - Rich * Priorities for next couple of months * Action items *Minutes* * The new MOSFIRE bearing was tested at the worst-case gravity orientation before Christmas and appears to work * Add'l testing to be done this week; on schedule for shipping in the Feb 8 - 16 window, depending on boat schedule * Continued need to deliver MOSFIRE continues to impact IRMS study progress * December progress additionally slowed by long holiday * Key areas for IRMS in next couple of months * Refinement of IRMS requirements document * Development of IRMS CoDD - led by Bahram * Development of IRMS OIWFS requirements - requires TMT AO support for PSF / sensitivity models * The largest uncertainty in the entire study seems to be whether the patrol range for a OIWFS exterior to the vacuum vessel provides sufficient sky coverage without blocking the spectrographic field (because it would be rather far from the focus). * Notes from the last meeting minutes: * 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 * 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)) * Refinement of IRMS cost estimate using best estimate of MOSFIRE as-built costs *Actions* * Rich * Contact Brent at TMT to initiate discussion of OIWFS performance model * Contact Sean and Ian to consolidate non-CIT MOSFIRE costs * Update IRMS mini-study schedule to reflect MOSFIRE and other delays * Discuss timing of interim review with Luc (targeting May 2012 now) * Bob * Consolidate CIT MOSFIRE cost summary, including sort of trail of shop charges * All * Finish MOSFIRE! *Meeting schedule* * The next IRMS team meeting will be announced pending MOSFIRE and other progress.
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Topic revision: r2 - 2012-01-17
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RichardDekany
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