MOON

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90Prime is a prime focus wide-field imager for the Steward Observatory 90“ telescope. The optical design includes a four element corrector and six position filter wheel. The focal plane array is a mosaic of four 4k x 4k CCDs which have been processed for back illumination by the University of Arizona Imaging Technology Laboratory[[. The camera provides an imaging area of 1.0 square degree on the four CCDs. The edge-to-edge field-of-view including the inter-CCD spacing is 1.16° x 1.16° with a plate scale of 30.2"/mm or 0.45"/pixel. Operational Links * [[Recent Changes and Known Issues

• User Certification
• Telescope Operation
• 90-inch Lightning Shutdown Procedure
• Detector information
• Optics
• Filter information
• 90Prime Operation
• 90Prime vs 90PrimeOne
• Software
• Startup
• Dithered Exposures
• Pointing, WCS, Flexture
• Focus
• Making flat fields
• Observing Scripts
• Helpful Hints

Other Relevent Links

• Bok telescope web site
• Steward Observatory web site
• Steward telescope schedules
• Photometric Fields (click on Stetson in upper left)
• University of Bonn Shutter 200mm x200mm
• CCD Controller (ARC Gen 3)
• UA Imaging Technology Laboratory (ITL)

The link below provides direct access to most 90Prime documents: 90prime_files