Gamma observatory

Former Soviet gamma ray telescope. Gamma observatory was launched on July 11, 1990 aboard a Soyuz-U2 from Baikonur. Latest status in GCAT: reentered (orbital decay) (Feb 28, 1992).

COSPAR 1990-058ANORAD 20683Soviet Union

Identity

Name in GCAT: Gamma
Common name: Gamma observatory
Payload designation: Gamma No. 1L
Other names: 19KA30 No. 1L:P
International designator: 1990-058A
NORAD catalog number: 20683
GCAT identifier: S20683
UN registration: ST/SG/SER.E/232

Mission

Mission type: Astronomy
Use: Civil government
Program: Gamma
Owner: NPO Energiya
Country: Soviet Union
Builder: NPO Energiya
Platform (bus): Gamma

Launch

Date: July 11, 1990 · 10:00 UTC
Launch record: 1990-058Success
Rocket: Soyuz-U2
Spaceport: Baikonur · pad LC1

Orbit and fate

Orbit class (GCAT): LLEO/I
Perigee: 411 km
Apogee: 430 km
Inclination: 51.62°
Status: Reentered (orbital decay)
Status date: February 28, 1992
Last known active: Feb 28, 1992
End of operations: Feb 28, 1992

Size

Mass: 7,320 kg
Dry mass: 7,000 kg
Length: 7.7 m
Diameter: 2.70 m
Span: 8.0 m

Source: GCAT payload, deep-space and lander catalogs, Jonathan C. McDowell (CC BY 4.0); Wikidata Q49947 (CC0).