ESSA-2

ESSA-2 (or OT-2) was a spin-stabilized operational meteorological satellite. Its name was derived from that of its oversight agency, the Environmental Science Services Administration (ESSA).

== Launch == thumb|left|Launch of ESSA-2. ESSA-2 was launched on February 28, 1966, at 13:55 UTC. It was launched atop a Delta rocket from Cape Canaveral, Florida. The spacecraft had a mass of at the time of launch. ESSA-2 had an inclination of 101.3°, and an orbited the Earth once every 113 minutes. Its perigee was and its apogee was .