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COSMOS 1638 (15620)
COSPAR: 1985-023D | Alt Name: Kosmos-1638
Image
Additional Sources
Launch Details
Launch Date
March 21, 1985
Launch Site
PLMSC
Launch Pad
LC132/2
Launch Vehicle
Kosmos 11K65M
Orbital Elements
NORAD ID
15620
International Designator
1985-023D
Epoch
Sat, 04 Jul 2026 06:39:23 GMT
Apogee
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Perigee
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Inclination
74.06°
Right Ascension
13.80°
Eccentricity
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Argument of Perigee
138.13°
Period
115.27 min
Mean Motion
12.49 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 1638
Alternative Name
Kosmos-1638
Type
Payload
Status
Unknown
Owner
GUKOS
Country
USSR
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 15620U 85023D 26185.27736039 -.00000016 00000-0 -16327-5 0 9994
2 15620 74.0562 13.7977 0015398 138.1300 34.8334 12.49214960882861
Source: Celestrak
Summary
COSMOS 1638, also known as Kosmos-1638, is a military communication satellite launched on March 21, 1985, from the PLMSC launch site using LC132/2 and the Kosmos 11K65M launch vehicle. It has dimensions of 0.8 meters in length, diameter, and span with a dry mass of 60 kg, identical to its launch mass. The satellite was manufactured by NPOPM for GUKOS and is equipped with solar cells and batteries for power supply. Its mission lasted approximately six months and it carries the Strela-1M Blok 37 No. 4 payload. With a shape classified as polyhedral, COSMOS 1638's radar cross-section (RCS) measures at 0.6832 square meters.
Physical Characteristics
Length
0.8
Diameter
0.8
Span
0.8
Dry Mass
60
Launch Mass
60
Shape
Poly
Radar Cross Section
0.6832
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
Strela-1M Blok 37 No. 4
Purpose
Military Communication
Mission
Military Communication
Manufacturer
NPOPM
Life Expectancy
6 months
Bus
Strela-1 11F625
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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