Magdalena Ridge Observatory 2.4-m Telescope Imager (MRO2K)
=============================

  Instrument Overview
  ===================      

    The visible-wavelength, direct-imaging CCD for the MRO 
    2.4-meter Telescope is an Andor iKon-L 936, and is 
    identified as “MRO2K”.  The MRO2K instrument is a 
    2048 x 2048 array with 13.5 µm2 pixels combined to deliver
    a 27.6 x 27.6 mm active image area. The camera is mounted
    on the Right Nasmyth port of the telescope. 
    
  Detector                                                         
  ========      
    The CCD is TE cooled down to -85°C. The camera is mounted
    on the Right Nasmyth port of the telescope. The camera’s
    shutter delay is measured via GPS to permit accurate 
    exposure timing to better than 0.1 seconds. 
    Further, the camera control computer is synched once per
    minute to a GPS coordinated Network Time Protocol (NTP) 
    server to account for any hardware-induced errors.

    The CCD images are a 4.5 arc minute square field of view
    with 13.5-micron pixels. The unbinned detector provides 
    a pixel scale of 0.13 arcsec/pixel. The chip is commonly
    binned at 2x2 (0.26 arcsec/pixel) or 4x4 (0.52 arcsec/pixel).
    The chip is linear up to 65k ADU at the default gain of 
    1.9 e-/ADU with a read noise is 3.5 ADU per pixel. 
    The CCD quantum efficiency is 90% from 475-700 nm and 
    dropping to ~50% at 400 and 900 nm. 

  Filters                                                         
  =======
    Dual filter wheels in the CCD camera light path provide
    12 filter slots. The facility filters currently available
    are Johnson-Cousins UBVRI, and a broad VR filter that 
    provides >80% transmission from 500-700 nm.