1. MMIRS 1 MMIRS MMT and Magellan Infrared Spectrograph Brian McLeod

2. MMIRS 2 Science Drivers – Brown dwarfs

3. MMIRS 3 Science Drivers – Star formation at high redshift

4. MMIRS 4 Basic Operational Modes Imaging 7 x 7 arcminute FOV 0.2 arcsecond pixels Y, J, H & K wavelength coverage Spectroscopy Multi-slit (4’x7’) or longslit (7’) –J, H, K @ R=3000 –H+K @ R=1400

5. MMIRS 5 Optical Layout Corrector ~20C Slit Plane Collimator Camera Detector Sec II.1 MOS Section Camera Section 77K Design by H. Epps and D. Fabricant

6. MMIRS 6 Slit Mask Detector

7. MMIRS 7 Corrector Optics (warm) Guider/WFS (warm) Detector LN2 Tank/ Optical Bench Collimator Camera Slit Masks Dekker

8. MMIRS 8 MMIRS EXTERIOR TRUSS ELECTRONICS RACKS (2) GUIDER/ WFS MOS SECTION DETECTOR PRE-AMP’S CAMERA SECTION TELESCOPE TRUSS- WELDED ASSEMBLY WITH BOLT INTERFACES TO TELESCOPE & CRYOSTAT ELECTRONICS RACK TRUSS (2) MOS SECTION

9. MMIRS 9 MOS Wheel

10. MMIRS 10 Project Timeline TSIP Proposal Feb 2003 Start of Work Dec 2003 PDR July 2004 CDR May 2005 Optics orderedAugust 2005 Begin manufacture Oct 2005 Begin integration and testSummer 2006 Delivery to MMT  Late 2007

11. MMIRS 11 Cryogenic benches In fab by Meyer Tool Expected delivery June 2006

12. MMIRS 12 Vacuum housings Contract awarded to Atlas Technologies Delivery expected August 2006

13. MMIRS 13 Cart In fabrication. Delivery expected in approx one month.

14. MMIRS 14 OPTICS STATUS LensStatus 1IN POLISHING 2IN COATING 3ASPHERE--DROPPED WHEN NEARLY COMPLETE – START OVER 4RECEIVED 5ABOUT TO BE COATED 6 7RECEIVED 8IN COATING 9RECEIVED 10RECEIVED 11RECEIVED 12IN COATING 13RECEIVED 14RECEIVED LENS9 LENS13

15. MMIRS 15 Grisms Original Plan JH R=1200 HK R=1200 J R=3000 H R=3000 K R=3000 Revised Plan HK Prism R=1200 master already made for UF at RGL. MMIRS will purchase identical. J,H,K R=3000 3 order grism Master being made by RGL for Florida. Option for cross-dispersion

16. MMIRS 16 Plan for next 6 months Detector characterization in test dewar Assemble main housings and G-10 rings Thermal/vacuum testing in September Build and test MOS wheel mechanism Finish remaining mechanical drawings