X Report 21 Jan 2025
SpaceX successfully launches 21 Starlink satellites, marking their return post-Starship explosion. Starship's recent test flight leaves debris washing ashore, while Blue Origin's New Glenn debut sparks discussion.
RADIO 5 (12999)
COSPAR: 1981-120C | Alt Name: Radio RS-5
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
12999
International Designator
1981-120C
Epoch
Fri, 03 Jul 2026 23:32:54 GMT
Apogee
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Perigee
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Inclination
82.96°
Right Ascension
76.31°
Eccentricity
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Argument of Perigee
283.20°
Period
119.47 min
Mean Motion
12.05 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
RADIO 5
Alternative Name
Radio RS-5
Type
Payload
Status
Unknown
Owner
NPOPM/MAIO
Country
USSR
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 12999U 81120C 26184.98118194 .00000119 00000-0 12754-2 0 9996
2 12999 82.9568 76.3129 0013814 283.1986 87.6172 12.05298327959601
Source: Celestrak
Summary
RADIO 5 (also known as Radio RS-5) is an amateur radio communication satellite launched on December 17, 1981, from the Plesetsk Cosmodrome LC132/2 launch pad using a Kosmos 11K65M launch vehicle. The spacecraft has dimensions of 0.8 meters in length, diameter, and span with a dry mass of 70 kilograms, matching its launch mass. It was manufactured by NPOPM/MAIO for amateur radio communication purposes and uses solar cells and batteries as power sources. The satellite has a polyhedral shape and a radar cross-section (RCS) value of 0.7881. Its operational lifetime was one year.
Physical Characteristics
Length
0.8
Diameter
0.8
Span
0.8
Dry Mass
70
Launch Mass
70
Shape
Poly
Radar Cross Section
0.7881
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
RS-5
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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