ESSA-5

ESSA-5 (or TOS-C) was a spin-stabilized operational meteorological satellite.^[1] Its name was derived from that of its oversight agency, the Environmental Science Services Administration (ESSA).

ESSA 5

ESSA 5 prior to launch
Names	TOS-C
Mission type	Weather
Operator	NASA
COSPAR ID	1967-036A
SATCAT no.	S02757
Spacecraft properties
Launch mass	145 kg (320 lb)
Start of mission
Launch date	April 20, 1967, 11:17 UTC GMT
Rocket	Delta
Launch site	Vandenberg Air Force Base
Orbital parameters
Reference system	Geocentric orbit
Regime	Low Earth orbit
Eccentricity	0.00399
Perigee altitude	1,361 km (846 mi)
Apogee altitude	1,423 km (884 mi)
Inclination	101.970°
Period	113.63 minutes
ESSA program ← ESSA-4 ESSA-6 →

Launch

Mosaic of Clouds from ESSA-5 satellite

ESSA-5 was launched on April 20, 1967, at 11:17 UTC. It was launched atop a Delta rocket from Vandenberg Air Force Base, California, U.S.. The spacecraft had a mass of 145 kilograms (320 lb) at the time of launch. ESSA-5 had an inclination of 101.9°, and an orbited the Earth once every 113.6 minutes. Its perigee was 1,361 kilometers (846 mi) and its apogee was 1,423 kilometers (884 mi).