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COSMOS 2139 [GLONASS] (21216)
COSPAR: 1991-025A | Alt Name: Kosmos-2139
Image
![COSMOS 2139 [GLONASS] Satellite Image](/images/sat/21216.jpg)
Additional Sources
Launch Details
Launch Date
April 4, 1991
Launch Site
Launch Pad
LC200/39
Launch Vehicle
Proton-K/DM-2
Orbital Elements
NORAD ID
21216
International Designator
1991-025A
Epoch
Fri, 03 Jul 2026 20:18:58 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
64.35°
Right Ascension
303.82°
Eccentricity
Calculating...
Argument of Perigee
220.26°
Period
675.72 min
Mean Motion
2.13 rev/day
Latitude
Calculating...
Longitude
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Altitude
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Velocity
Calculating...
Polar Plot
3D Visualization
Basic Satellite Info
Name
COSMOS 2139 [GLONASS]
Alternative Name
Kosmos-2139
Type
Payload
Status
Non-operational
Owner
UNKSR
Country
USSR
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 21216U 91025A 26184.84650532 -.00000039 00000-0 00000-0 0 9996
2 21216 64.3516 303.8223 0017122 220.2611 139.6316 2.13105874274280
Source: Celestrak
Summary
The COSMOS 2139 [GLONASS] satellite, also known as Kosmos-2139, was launched on April 4, 1991, from the TYMSC launch site using a Proton-K/DM-2 launch vehicle. It is part of the Uragan series and has a configuration of 3-Axis stabilized. The satellite measures 4 meters in length with a diameter of 1.5 meters and spans 7.8 meters when its components are deployed. Its dry mass is 1,200 kg, and it had an initial launch mass of 1,300 kg. The satellite was manufactured by POL for navigation purposes and features two deployable solar arrays and batteries to power the equipment onboard. Launched with a planned lifetime of three years, COSMOS 2139 [GLONASS] is equipped with Uragan No. 50L payload and has an RCS (Reflectivity Coefficient Surface) value of 1.3022. The shape of the satellite consists of a cylinder with antennas and two panels.
Physical Characteristics
Length
4
Diameter
1.5
Span
7.8
Dry Mass
1200
Launch Mass
1300
Shape
Cyl + Ant + 2 Pan
Radar Cross Section
1.3022
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
Uragan No. 50L
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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