## The Legacy Surveys

The Legacy Surveys are producing an inference model catalog of the sky from a set of optical and infrared imaging data, comprising 14,000 deg² of extragalactic sky visible from the northern hemisphere in three optical bands ($g,r,z$) and four infrared bands. The sky coverage is approximately bounded by -18° < δ < +84° in celestial coordinates and $|b|$ > 18° in Galactic coordinates. To achieve this goal, the Legacy Surveys are conducting 3 imaging projects on different telescopes, described in more depth at the following links:

 The Beijing-Arizona Sky Survey (BASS) The DECam Legacy Survey (DECaLS) The Mayall z-band Legacy Survey (MzLS)

October 2017