Download presentation
Presentation is loading. Please wait.
Published byMarvin York Modified over 6 years ago
1
Brian McLeod Smithsonian Astrophysical Observatory
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
5
Megacam as seen at SDW2002
10
CCD SIMULATOR TEST BOX SCOPE CONNECTIONS
11
300mmx300mm Sloan-r filter by Sagem
14
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
16
Image Quality FWHM (ARCSEC) PIXEL POSITION
17
Astrometry Error relative to 2Mass catalog: 0.16” Dec Err (”) RA Err
18
NGC6791 r-band 120s J. Hartman et al. astro-ph/
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.