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COSMOS 2081 [GLONASS] (20621)
COSPAR: 1990-045C | Alt Name: Kosmos-2081
Image
![COSMOS 2081 [GLONASS] Satellite Image](/images/sat/20621.jpg)
Additional Sources
Launch Details
Launch Date
May 19, 1990
Launch Site
Launch Pad
LC200/40
Launch Vehicle
Proton-K/DM-2
Orbital Elements
NORAD ID
20621
International Designator
1990-045C
Epoch
Tue, 30 Jun 2026 12:50:14 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
64.72°
Right Ascension
308.19°
Eccentricity
Calculating...
Argument of Perigee
213.07°
Period
675.72 min
Mean Motion
2.13 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Polar Plot
3D Visualization
Basic Satellite Info
Name
COSMOS 2081 [GLONASS]
Alternative Name
Kosmos-2081
Type
Payload
Status
Non-operational
Owner
UNKS
Country
USSR
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 20621U 90045C 26181.53488846 -.00000056 00000-0 00000-0 0 9995
2 20621 64.7223 308.1850 0046712 213.0662 165.9745 2.13104998280972
Source: Celestrak
Summary
COSMOS 2081 [GLONASS], also known as Kosmos-2081, is a satellite launched on May 19, 1990, from the TYMSC launch site using the Proton-K/DM-2 launch vehicle. The spacecraft has a length of 4 meters, a diameter of 1.5 meters, and a span of 7.8 meters with solar arrays deployed. It weighs 1300 kg at launch, with a dry mass of 1200 kg. Equipped for navigation purposes as part of the Uragan constellation, it uses two deployable solar arrays for power generation along with batteries to maintain its operations. Manufactured by POL and operated under UNKS ownership, COSMOS 2081 has a designed lifetime of 3 years and is identified by the NORAD catalog ID 20621. Its shape consists of a cylindrical body plus antennas and two panels for solar arrays, providing it with a radar cross-section (RCS) of approximately 1.703 square meters.
Physical Characteristics
Length
4
Diameter
1.5
Span
7.8
Dry Mass
1200
Launch Mass
1300
Shape
Cyl + Ant + 2 Pan
Radar Cross Section
1.703
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
Uragan No. 52L
Purpose
Navigation
Mission
Navigation
Manufacturer
POL
Life Expectancy
3 years
Bus
Uragan
Configuration
3-Axis stabilized
Motor
?
Equipment
?
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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