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COSMOS 2091 (20736)
COSPAR: 1990-070B | Alt Name: Kosmos-2091
Image
Additional Sources
Launch Details
Launch Date
August 8, 1990
Launch Site
PLMSC
Launch Pad
LC32/2
Launch Vehicle
Tsiklon-3
Orbital Elements
NORAD ID
20736
International Designator
1990-070B
Epoch
Sat, 04 Jul 2026 02:19:50 GMT
Apogee
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Perigee
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Inclination
82.58°
Right Ascension
317.37°
Eccentricity
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Argument of Perigee
79.72°
Period
114.05 min
Mean Motion
12.63 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
COSMOS 2091
Alternative Name
Kosmos-2091
Type
Payload
Status
Unknown
Owner
UNKS
Country
USSR
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 20736U 90070B 26185.09711012 .00000031 00000-0 11585-3 0 9994
2 20736 82.5799 317.3708 0004539 79.7234 94.3417 12.62560766654444
Source: Celestrak
Summary
COSMOS 2091, also known as Kosmos-2091, is a military communication satellite launched on August 8, 1990, from the PLMSC launch site using LC32/2 and the Tsiklon-3 launch vehicle. The spacecraft, manufactured by NPOPM, measures 1.6 meters in length with a diameter of 0.8 meters and a span of 7 meters due to its solar panels or antennas. It has a dry mass of 225 kilograms and was designed for military communication purposes. Equipped with solar cells and batteries for power, COSMOS 2091 features a cylindrical body with antennas (Cyl + Ant) and has a radar cross-section of 1.1108 m². The satellite's payload is the Strela-3 system, and it operates under unknown ownership (UNKS).
Physical Characteristics
Length
1.6
Diameter
0.8
Span
7
Dry Mass
225
Launch Mass
225
Shape
Cyl + Ant
Radar Cross Section
1.1108
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
Strela-3
Purpose
Military Communication
Mission
Military Communication
Manufacturer
NPOPM
Life Expectancy
Unknown
Bus
Strela-3
Configuration
Unknown
Motor
Unknown
Equipment
Unknown
Power System
Solar cells, 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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