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GORIZONT 21 (20923)
COSPAR: 1990-094A | Alt Name: Gorizont
Image
Additional Sources
Launch Details
Launch Date
November 3, 1990
Launch Site
Launch Pad
LC81/23
Launch Vehicle
Proton-K/DM-2
Orbital Elements
NORAD ID
20923
International Designator
1990-094A
Epoch
Fri, 03 Jul 2026 21:36:13 GMT
Apogee
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Perigee
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Inclination
12.72°
Right Ascension
336.65°
Eccentricity
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Argument of Perigee
267.51°
Period
1437.56 min
Mean Motion
1.00 rev/day
Latitude
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Longitude
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Altitude
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Velocity
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Polar Plot
3D Visualization
Basic Satellite Info
Name
GORIZONT 21
Alternative Name
Gorizont
Type
Payload
Status
Non-operational
Owner
MSVYAZ
Country
USSR
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 20923U 90094A 26184.90016147 -.00000327 00000-0 00000-0 0 9990
2 20923 12.7198 336.6498 0006494 267.5081 107.5796 1.00169802130621
Source: Celestrak
Summary
GORIZONT 21, also known as Gorizont No. 32L, is a communication satellite manufactured by NPOPM and owned by MSVYAZ. It was launched on November 3, 1990, from the TYSMC launch site using a Proton-K/DM-2 launch vehicle. The spacecraft has dimensions of 5.5 meters in length, 3.3 meters in diameter, and a span of 9.5 meters. With a dry mass of 2000 kg and a launch mass of 2120 kg, the satellite is equipped with 6 C-band transponders and 1 Ku-band transponder for communication purposes. Its power system includes two deployable solar arrays and batteries. The shape of GORIZONT 21 consists of a cylinder with two panels, and it has an expected lifetime of 3 years.
Physical Characteristics
Length
5.5
Diameter
3.3
Span
9.5
Dry Mass
2000
Launch Mass
2120
Shape
Cyl + 2 Pan
Radar Cross Section
3.981
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
Gorizont No. 32L
Purpose
Communication
Mission
Communication
Manufacturer
NPOPM
Life Expectancy
3 years
Bus
Gorizont
Configuration
KAUR-3
Motor
Unknown
Equipment
6 C-band transponders, 1 Ku-band transponder
Power System
2 deployable solar arrays, batteries
ADCS
Unknown
Transmitter Frequency
Unknown
Map
Next Pass
Azimuth Elevation Time (Local)
Start Azimuth
Max Elevation
Stop Azimuth
Time Until
Pass Duration
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