Kosmos 1977

Russian military early warning satellite. Kosmos 1977 was launched on October 25, 1988 aboard a Molniya 8K78M from Plesetsk. Latest status in GCAT: in orbit.

COSPAR 1988-096ANORAD 19608Soviet Union

Identity

Name in GCAT: Kosmos-1977
Common name: Kosmos 1977
Payload designation: Oko 73D6 No. 6047
Other names: 73D6 No. 782-18-552:RA
International designator: 1988-096A
NORAD catalog number: 19608
GCAT identifier: S19608
UN registration: ST/SG/SER.E/195

Mission

Mission type: Missile early warning
Use: Defense
Program: Oko E
Owner: PVO
Country: Soviet Union
Builder: NPO Lavochkin
Platform (bus): Oko

Launch

Date: October 25, 1988 · 18:02 UTC
Launch record: 1988-096Success
Rocket: Molniya 8K78M
Spaceport: Plesetsk · pad LC41/1

Orbit and fate

Orbit class (GCAT): HEO/M
Perigee: 654 km
Apogee: 39,703 km
Inclination: 62.91°
Status: In orbit
Last known active: May 22, 1990
End of operations: May 22, 1990

Size

Mass: 1,250 kg
Dry mass: 1,150 kg
Length: 4.0 m
Diameter: 2.00 m
Span: 5.0 m

Source: GCAT payload, deep-space and lander catalogs, Jonathan C. McDowell (CC BY 4.0); Wikidata Q3398215 (CC0).