Subsystem status:

• The main rotating cylinder and undercarriage have been fabricated.
• All optics except Element 8 in the camera are fabricated and coated.
• Element 8 is to be finished and coated in March.
• The camera mechanical design is complete and pieces are being sent out for fabrication. We estimate assembling the camera in April-May, provided progress on ESI permits.
• The collimator cell is completed and ready to accept the collimator.
• The tent mirror mount is fully designed but some small amount of fabrication remains.
• The position angle drive and encoders are installed but not tested.
• The grating system (tilt drives and encoders, slide drive, and mounting system) are fully designed and partly fabricted. Some subsystems have been partly tested.
• The slitmask cassette holder and insertion mechanism are being reworked. They are largely fabricated but not fully tested.
• The mask drilling system has been fully designed and prototype masks have been made. The barcode reader and inventory/database software for making masks are in progress.
• A prototype for the filter wheel has been made. The final design and fabrication are about to start.
• The flexure compensation system has been scaled back in Phase I of commissioning. All parts will be installed, and the system will be operated passively during testing and commissioning, but the final software for closed-loop control has been postponed pending final flexure tests.
• The dewar body is fully fabricated, but the focus and X-motion flexure compensation drives are not complete or installed.
• Eight interim Orbit CCD detectors are available for the CCD detector. These are thick CCDs with modest quantum efficiency. The MIT/LL consortium effort has produced many candidate thinned CCDs for the second-generation DEIMOS mosaic, but they have not yet been fully tested and their suitability is not yet established. More runs at MIT/LL are planned, but CCDs will not be available for testing until the middle of the year. Our plan is to deliver the instrument with the Orbit mosaic. The two flexure compensation CCDs have been mounted and are ready to be tested.
• The CCD signal electronics for the full mosaic have been fabricated and partially tested. The flexure compensation signal electronics are complete and fully tested.
• Much of the ESI software effort will carry over to DEIMOS. The software team are poised to finalize the motor control software as soon as the mechanical stages are ready. A prototype instrument GUI exists.