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Soviet Space ProgramProton K/DM-281/23 (81L), Baikonur Cosmodrome, Republic of Kazakhstan
Gorizont 21
Launched
November 3, 1990
Summary
Gorizont 21 launched on a Soviet Space Program Proton K/DM-2 from 81/23 (81L), Baikonur Cosmodrome, Republic of Kazakhstan on November 3, 1990. It was Soviet Space Program's 2,379th launch, 63rd this year and humanity's 3,575th orbital launch attempt. It was the 42nd Proton K/DM-2 flight and the 5th this year. The payload was bound for Geostationary Orbit (Direct-GEO). Gorizont, one of 6 catalogued objects, reached a 35,618 × 35,762 km orbit inclined 1.5°. 6 objects from this launch are catalogued, one of them a payload.
- Watch
- No webcast on record.
- Vehicle
- Proton K/DM-2 · Soviet Space Program
- Booster
- No booster details on record.
- Mission
- Communications · Geostationary Orbit (Direct-GEO)
- Milestone
- 42nd Proton K/DM-2 flight · 5th this yearSoviet Space Program's 2,379th launch63rd this yearhumanity's 3,575th orbital launch attempt99th orbital launch attempt this year
Flight preview
Orbit: as tracked
Gorizont · NORAD 20923 · 1990-094 · Space-Track · tracking 1 of 6 objects
Show the numbers for orbit elements
- Object
- GORIZONT 21
- Object ID
- 1990-094A
- Epoch
- 1990-11-03 09:03:24 UTC
- Mean motion
- 1.0064209 rev/day
- Eccentricity
- 0.0017125
- Inclination
- 1.4754°
- Ascending node
- 270.0208°
- Arg. of perigee
- 324.6479°
- Mean anomaly
- 33.683°
- Element set
- 999
- Rev at epoch
- 1
- B*
- 0
Perigee, apogee and period are Kepler figures from the catalogued mean elements, not a propagated state. Published orbit: Direct-GEO. Ascent drawn from padside's representative profile.
Catalogued objects
6 catalogued: 1 payload, 2 rocket stages, 3 components; 2 still in orbit
- Gorizont · NORAD 20923 · in orbit
Proton-K 370-01 Stage 3 · re-entered November 5, 1990
Blok DM-2 No. 35L · in orbit
Data from J. McDowell, planet4589.org
About this launch
Geostationary communications satellite
Pad
81/23 (81L), Baikonur Cosmodrome, Republic of Kazakhstan
38th launch from 81/23 (81L), 2nd this year · 944th from Baikonur Cosmodrome, Republic of Kazakhstan
104 launches from this pad · 1,565 from Baikonur Cosmodrome, Republic of Kazakhstan
261 days after the previous launch from this pad
All launches from Baikonur Cosmodrome, Republic of KazakhstanOpen in maps
Questions
When did Gorizont 21 launch?
Gorizont 21 launched on November 3, 1990. The time is known to the hour, not the minute.
Where can I watch Gorizont 21?
No webcast is on record for this launch.
What rocket launched Gorizont 21?
Proton K/DM-2, flown by Soviet Space Program. Proton K/DM-2 spec sheet
Where did Gorizont 21 launch from?
81/23 (81L), Baikonur Cosmodrome, Republic of Kazakhstan.
What orbit did Gorizont 21 reach?
Gorizont, one of 6 catalogued objects, reached a 35,618 × 35,762 km orbit inclined 1.5°.
How many satellites did Gorizont 21 launch?
1 payload from this launch is catalogued, still in orbit (Data from J. McDowell, planet4589.org).