Kosmos 1300

Soviet intelligence satellite. Kosmos 1300 was launched on August 24, 1981 aboard a Tsiklon-3 from Plesetsk. Latest status in GCAT: reentered (orbital decay) (Feb 7, 2026).

COSPAR 1981-082ANORAD 12785Soviet Union

Identity

Name in GCAT: Kosmos-1300
Common name: Kosmos 1300
Payload designation: Ikar No. 33L
Other names: Tselina-D No. 33L:P,11F619 No. 510-99-833:RA
International designator: 1981-082A
NORAD catalog number: 12785
GCAT identifier: S12785
UN registration: ST/SG/SER.E/062

Mission

Mission type: Signals intelligence
Use: Defense
Program: Tselina-D
Owner: GRU
Country: Soviet Union
Builder: Southern State Design Bureau
Platform (bus): Tselina-D

Launch

Date: August 24, 1981 · 21:40 UTC
Launch record: 1981-082Success
Rocket: Tsiklon-3
Spaceport: Plesetsk · pad LC32/1

Orbit and fate

Orbit class (GCAT): LEO/I
Perigee: 606 km
Apogee: 631 km
Inclination: 82.48°
Status: Reentered (orbital decay)
Status date: February 7, 2026
Last known active: 1983
End of operations: 1983

Size

Mass: 1,750 kg
Dry mass: 1,750 kg
Length: 3.2 m
Diameter: 1.30 m
Span: 13.1 m

Source: GCAT payload, deep-space and lander catalogs, Jonathan C. McDowell (CC BY 4.0); Wikidata Q12753208 (CC0).