MOSFIRE Status Update

Bob Weber27 January 2010

COO All-Hands Meeting

MOSFIRE Overview

• Multi-Object Spectrometer for Infra-Red Exploration

• CIT, UCLA, UCSC, Keck collaboration• NIR multi-object spectroscopy over 6.1’ x 6.1’

FOV; up to 46 objects simultaneously• Wavelength coverage: 0.9-2.5 µm (Y, J , H & K)• Commissioning: Keck 1 Cass by end of 2010

27 January 20102

Recent Progress Summary

• 3rd cool down completed successfully– Cold alignment confirmed– Installed mechanisms (FCS, Grating Turret, Pupil Mechanism,

CSU) operated successfully in all gravity orientations

• All science optics successfully mounted & aligned– All lenses aligned & bonded into cells (except field flattener)– Camera barrel assembled– Collimator barrel ready to be assembled– Science flats aligned & bonded

27 January 20103

MOSFIRE Cold Alignment Check

27 January 20104

MOSFIRE Mechanisms

CSU during bench tests Grating Turret installation

27 January 20105

Lens Mounting

Camera Lens #4 Installed Camera Barrel Assembled

27 January 20106

Current Activities

• 4th cool down preparations– Re-check cold alignment w/ science flats– More mechanism tests

• Detector head cold tests– Focus mechanism tests (cold @ UCLA)– Install detector– Field flattener installation

27 January 20107

Current Activities (Cont.)

• Filter wheel cold tests– Wheel detent design modifications necessary– Cold tests in test chamber before 5th cool

down

• Guider assembly & alignment check– Assemble to front end cap– CMM metrology & adjustment– Alignment check w.r.t. instrument axis during

4th cool down27 January 20108

Platform & Hexapod structures for alignment checks

27 January 20109

Looking Forward• 5th cool down (late March)

– Install all optics

– Install all remaining mechanisms

– Install science detector

– Optical tests

• 6th cool down (May)– Flexure mapping

• 7th cool down (late June)– Acceptance tests?

• Pack & Ship (July-August?)• Commissioning (September?)

27 January 201010

IRMSInfraRed MultiSlit

Spectrometer for TMTBob Weber

27 January 2010

COO All-Hands Meeting

27 January 201011

Overview

• IRMS is envisioned as “clone” of MOSFIRE

• Fed by NFIRAOS

• Three modifications required for TMT:– Alter mounting to attach to NFIRAOS– Alter field lens prescription for TMT– Alter guider system to OIWFS (on instrument

wave front sensing)

27 January 201012

Current Status

• TMT preparing SOW for Conceptual Design Study

• Design study period: (late 2010 thru early 2011)

• UC Riverside is the design study lead

• COO’s contribution (~$100K):– Design & cost required modifications to

MOSFIRE– Develop schedule & cost to completion

27 January 201013

COO’s Future in IRMS?

• The IRMS team remains undefined• This is substantially a fabrication, procurement,

and I&T project. To keep IRMS costs minimal, we have suggested that:– COO participates in project engineering/management– Mechanical re-design done by COO– I&T tasks should be done at CIT (infrastructure &

experience exist)

27 January 201014