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. Gorizont 21
// communications · 1990

Gorizont 21

Gorizont 21 was launched on November 3, 1990 aboard a Proton-K/DM-2 from Baikonur. Latest status in GCAT: in orbit.

COSPAR 1990-094ANORAD 20923Soviet Union

Identity

Name in GCAT
Gorizont
Common name
Gorizont 21
Payload designation
Gorizont No. 32L
Other names
11F662 No. 800-47-432:RA
International designator
1990-094A
NORAD catalog number
20923
GCAT identifier
S20923
UN registration
ST/SG/SER.E/238

Mission

Mission type
Communications
Use
Civil government
Program
Gorizont
Owner
MSvyaz
Country
Soviet Union
Builder
NPO Applied Mechanics
Platform (bus)
Gorizont

Launch

Date
November 3, 1990 · 14:40 UTC
Launch record
1990-094Success
Spaceport
Baikonur · pad LC81/23

Orbit and fate

Orbit class (GCAT)
GEO/S
Perigee
35,779 km
Apogee
35,795 km
Inclination
1.37°
Status
In orbit
Last known active
March 2000
End of operations
March 2000

Size

Mass
2,120 kg
Dry mass
2,000 kg
Length
5.5 m
Diameter
3.30 m
Span
9.5 m

Source: GCAT payload, deep-space and lander catalogs, Jonathan C. McDowell (CC BY 4.0); Wikidata Q16061185 (CC0).