Kosmos 300

Failed Soviet lunar sample-return mission (1969). Kosmos 300 was launched on September 23, 1969 aboard a Proton-K/D from Baikonur. Latest status in GCAT: reentered (orbital decay) (Sep 27, 1969).

COSPAR 1969-080ANORAD 4104Soviet Union

Identity

Name in GCAT: Kosmos-300
Common name: Kosmos 300
Payload designation: E-8-5 No. 403
International designator: 1969-080A
NORAD catalog number: 4104
GCAT identifier: S04104
UN registration: A/AC.105/INF.214

Mission

Mission type: Deep space
Use: Civil government
Program: E-8-5
Owner: IKI
Country: Soviet Union
Builder: Babakin Science and Research Space Center
Platform (bus): Luna E-8

Launch

Date: September 23, 1969 · 14:07 UTC
Launch record: 1969-080Failure · 0.4
Rocket: Proton-K/D
Spaceport: Baikonur · pad LC81/24

Orbit and fate

Orbit class (GCAT): LLEO/I
Perigee: 175 km
Apogee: 179 km
Inclination: 51.45°
Status: Reentered (orbital decay)
Status date: September 27, 1969
Last known active: Sep 23, 1969
End of operations: Sep 23, 1969

Size

Mass: 3,180 kg
Dry mass: 1,360 kg
Total mass with attached objects: 5,700 kg
Length: 1.5 m
Diameter: 3.50 m
Span: 5.0 m

Source: GCAT payload, deep-space and lander catalogs, Jonathan C. McDowell (CC BY 4.0); Wikidata Q387190 (CC0).