Two Micron All Sky Survey (2MASS)
One 1.3 meter telescope is located in Mt. Hopkins, AZ (top) and the other 1.4 meter telescope is in Cerro Tololo Inter-American Observatory, Chile (bottom).
- Mission duration
- Operations began in June 1997 (northern facility) and March 1998 (southern facility) and both ended February 15, 2001.
- Light observed
- Infrared
- Website
- 2MASS's homepage