Space Brief 31 Mar 2025
Today's brief covers significant space events, including milestone national security certifications for ULA Vulcan and Rocket Lab, SpaceX's groundbreaking polar orbit mission, and a failed launch attempt by Isar Aerospace.
COSMOS 1806 (17213)
COSPAR: 1986-098A | Alt Name: Kosmos-1806
Image
Additional Sources
Launch Details
Launch Date
December 12, 1986
Launch Site
PLMSC
Launch Pad
LC43/4
Launch Vehicle
Molniya 8K78M
Orbital Elements
NORAD ID
17213
International Designator
1986-098A
Epoch
Sun, 28 Jun 2026 15:04:59 GMT
Apogee
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Perigee
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Inclination
68.61°
Right Ascension
144.94°
Eccentricity
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Argument of Perigee
78.66°
Period
717.56 min
Mean Motion
2.01 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 1806
Alternative Name
Kosmos-1806
Type
Payload
Status
Unknown
Owner
PVO
Country
USSR
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 17213U 86098A 26179.62846836 .00000097 00000-0 00000-0 0 9999
2 17213 68.6105 144.9404 4740903 78.6565 47.8812 2.00680718289531
Source: Celestrak
Summary
COSMOS 1806 (also known as Kosmos-1806) is an early warning satellite launched by the Soviet Union on December 12, 1986, from Plesetsk Cosmodrome LC43/4 using a Molniya 8K78M launch vehicle. It has a cylindrical shape with two panels and measures 4 meters in length and 2 meters in diameter, with a span of 5 meters. The satellite's dry mass is 1150 kg, and it was launched at a total mass of 1250 kg. COSMOS 1806 is equipped with deployable fixed solar arrays and batteries for power supply. It operates under the ownership of PVO (Soviet Air Defense Forces) and carries an Oko 73D6 early warning payload. The spacecraft was manufactured by NPOL/KOMET, and its reflective surface area is approximately 13.0223 square meters.
Physical Characteristics
Length
4
Diameter
2
Span
5
Dry Mass
1150
Launch Mass
1250
Shape
Cyl + 2 Pan
Radar Cross Section
13.0223
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
Oko 73D6 No. 6029
Purpose
Early warning
Mission
Early warning
Manufacturer
NPOL/KOMET
Life Expectancy
Unknown
Bus
Oko
Configuration
Unknown
Motor
Unknown
Equipment
Unknown
Power System
2 deployable fixed 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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