Astrophysics (Index)About

Two Micron Sky Survey

(IRC, TMSS, Infrared Catalog, Caltech Infrared Catalog)
(1969 infrared catalog produced by Caltech)

The Two Micron Sky Survey (or Infrared Catalog or Caltech Infrared Catalog or IRC) is an catalog of 5000 infrared sources culled from publications in 1969.

This is not the Two Micron All-sky Survey (2MASS), which dates from decades later.

Further reading:
IRCIRC -10414 
TMSSTMSS -10122