2026-244Latest orbital launch: Falcon 9 · Starlink Group 15-16 · Oct 27, 2026 · VandenbergLaunch record →
sci-techmaventhe history of spaceflight, in data
  1. Home
  2. Spacecraft
  3. ESSA-2
// meteorology · 1966

ESSA-2

Former American weather satellite. ESSA-2 was launched on February 28, 1966 aboard a Thor Delta E from Cape Canaveral & Kennedy. Latest status in GCAT: in orbit.

COSPAR 1966-016ANORAD 2091United States

Identity

Name in GCAT
ESSA 2
Common name
ESSA-2
Payload designation
Tiros OT2
International designator
1966-016A
NORAD catalog number
2091
GCAT identifier
S02091
UN registration
A/AC.105/INF.131

Mission

Mission type
Meteorology
Use
Civil government
Program
TOS
Owner
ESSA
Country
United States
Builder
RCA Astro Electronics (Astro Space)
Platform (bus)
Tiros I

Launch

Date
February 28, 1966 · 13:58 UTC
Launch record
1966-016Success
Spaceport
Cape Canaveral & Kennedy · pad LC17B

Orbit and fate

Orbit class (GCAT)
LEO/S
Perigee
1,357 km
Apogee
1,414 km
Inclination
100.96°
Status
In orbit
Last known active
Oct 17, 1970
End of operations
Oct 17, 1970

Size

Mass
130 kg
Dry mass
130 kg
Length
0.6 m
Diameter
1.10 m
Span
1.1 m

Source: GCAT payload, deep-space and lander catalogs, Jonathan C. McDowell (CC BY 4.0); Wikidata Q16325197 (CC0).