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RADIO 8 (12998)
COSPAR: 1981-120B | Alt Name: Radio RS-4
Image
Additional Sources
Launch Details
Launch Date
December 17, 1981
Launch Site
PLMSC
Launch Pad
LC132/2
Launch Vehicle
Kosmos 11K65M
Orbital Elements
NORAD ID
12998
International Designator
1981-120B
Epoch
Sat, 04 Jul 2026 05:59:20 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
82.96°
Right Ascension
111.69°
Eccentricity
Calculating...
Argument of Perigee
86.92°
Period
119.68 min
Mean Motion
12.03 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
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Velocity
Calculating...
Polar Plot
3D Visualization
Basic Satellite Info
Name
RADIO 8
Alternative Name
Radio RS-4
Type
Payload
Status
Unknown
Owner
NPOPM/MAIO
Country
USSR
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 12998U 81120B 26185.24953844 -.00000074 00000-0 -99071-3 0 9994
2 12998 82.9592 111.6880 0020544 86.9250 67.6282 12.03197011956215
Source: Celestrak
Summary
The RADIO 8 satellite, also known as Radio RS-4, was launched on December 17, 1981, from the Plesetsk Cosmodrome LC132/2 launch pad using a Kosmos 11K65M launch vehicle. It is classified under the Strela-1M bus and has dimensions of 0.8 meters in length, diameter, and span, with a dry mass of 70 kilograms. The satellite was designed for amateur radio communication purposes and operated for approximately one year. Its power supply included solar cells and batteries. Manufactured by NPOPM/MAIO, RADIO 8 had a polyhedral shape and a radar cross section (RCS) value of 0.8276 square meters.
Physical Characteristics
Length
0.8
Diameter
0.8
Span
0.8
Dry Mass
70
Launch Mass
70
Shape
Poly
Radar Cross Section
0.8276
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
RS-4
Purpose
Amateur radio communication
Mission
Amateur radio communication
Manufacturer
NPOPM/MAIO
Life Expectancy
1 year
Bus
Strela-1M
Configuration
Unknown
Motor
None
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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