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MMT Megacam Brian McLeod Smithsonian Astrophysical Observatory.

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Presentation on theme: "MMT Megacam Brian McLeod Smithsonian Astrophysical Observatory."— Presentation transcript:

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

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8 CCD SIMULATOR TEST BOX SCOPE CONNECTIONS

9 300mmx300mm Sloan-r filter by Sagem

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12 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

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14 Image Quality PIXEL POSITION FWHM (ARCSEC)

15 Astrometry RADec RA Err (”) Dec Err (”) Error relative to 2Mass catalog: 0.16”

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

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