Site
Latitude and longitude: -30:10:20 , 70:48:00W
Elevation: 2100m
Site manager: CTIO
Internet access: T1
Weather statistics: 60% photometric, 30% usable 10% cloudy
Typical good seasons: Spring, Summer, Fall
APASS South
Telescope
Type: Corrected Newtonian
Aperture: 20cm
Focal length: 720mm
F-ratio: 3.6
Focuser: OKI electronic
Mount
Paramount ME
pointing accuracy: 1arcmin
maximum unguided tracking
restrictions, if any: 5arcmin
Computer: Linux
Software: TheSky, MaxIm DL, ACP, ACP Scheduler
Telecope Advocate: A. Henden
Imaging
Typical seeing: 1-2arcsec
Best seeing: subarcsec
Vignetting: severe; 30%
Scattered light: some, corrected during processing
Image defects: some column defects
Camera
Type: Apogee U16m
Filter wheel: Apogee 7s
Filters: BVugriz
Exposure ratios/filter:
Pixel count: 4096x4096
Pixel scale: 2.6arcsec/pix
Field of view: 2.9x2.9 degrees
Gain:
Readnoise:
Linearity (graph)
Full well:
Cosmetic defects: some column defects
Dark current:
Read time:
Shortest exposure: 0.2sec (3sec recommended)
Compressed image size: 10MB
QE response (graph)
Images of typical darks, typical flats
Typical use of system
APASS survey during dark time; some time currently available for other projects during bright time.