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MMT Megacam

MMT Megacam. Brian McLeod Smithsonian Astrophysical Observatory. Basic Parameters. 36 2048x4608 13.5micron pixels (e2v ccd42-90) 0.08”/pixel, currently binned by 2 to 0.16” 200kps through 72 amplifiers 2 additional ccd42-90s for guiding/focus SAO-built controller by John Geary.

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MMT Megacam

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  1. MMT Megacam Brian McLeod Smithsonian Astrophysical Observatory

  2. Basic Parameters • 36 2048x4608 13.5micron pixels (e2v ccd42-90) • 0.08”/pixel, currently binned by 2 to 0.16” • 200kps through 72 amplifiers • 2 additional ccd42-90s for guiding/focus • SAO-built controller by John Geary

  3. Megacam as seen at SDW2002

  4. CCD SIMULATOR TEST BOX SCOPECONNECTIONS

  5. 300mmx300mm Sloan-r filter by Sagem

  6. Megacam Performance • Gain: 3-4 e-/ADU • Read noise: 4-5e- at 200kHz • CCD Temps: -115C to -130C depending on focal plane location • Some large scale flat fielding errors

  7. Image Quality FWHM (ARCSEC) PIXEL POSITION

  8. Astrometry Error relative to 2Mass catalog: 0.16” Dec Err (”) RA Err (”) Dec RA

  9. NGC6791 r-band 120s J. Hartman et al. astro-ph/ 0504487

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