The Day That Changed Spaceflight Forever
Thirty-nine years ago, the loss of Space Shuttle Challenger and its seven crew members forever transformed our approach to spaceflight safety and risk management
SL-6 R/B(2) (13169)
COSPAR: 1982-029D | Alt Name: Blok-L 37-645
Image
Additional Sources
Launch Details
Launch Date
April 7, 1982
Launch Site
PLMSC
Launch Pad
LC16/2
Launch Vehicle
Molniya 8K78M
Orbital Elements
NORAD ID
13169
International Designator
1982-029D
Epoch
Tue, 30 Jun 2026 16:17:11 GMT
Apogee
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Perigee
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Inclination
71.98°
Right Ascension
326.91°
Eccentricity
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Argument of Perigee
310.71°
Period
705.42 min
Mean Motion
2.04 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
SL-6 R/B(2)
Alternative Name
Blok-L 37-645
Type
Rocket Body
Status
Space Junk
Owner
RVSN
Country
USSR
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 13169U 82029D 26181.67860975 .00000376 00000-0 00000-0 0 9993
2 13169 71.9846 326.9144 5334371 310.7075 13.7365 2.04133537329260
Source: Celestrak
Summary
A rocket body, also commonly referred to as an upper stage or spent rocket stage, is the structural shell left behind after a rocket has delivered its payload to orbit. These large and often heavy pieces of space hardware can remain in orbit for years, posing significant collision hazards as part of the growing space debris problem. If left uncontrolled, rocket bodies have the potential to reenter Earth's atmosphere unpredictably, which can lead to falling debris in populated areas. Additionally, they risk colliding with operational satellites or the International Space Station, creating more debris and putting human life at risk.
Physical Characteristics
Length
3.3
Diameter
2.3
Span
3.3
Dry Mass
900
Launch Mass
4500
Shape
Cyl
Radar Cross Section
2.5118
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
Blok-2BL No. 71637-645
Purpose
Unknown
Mission
Unknown
Manufacturer
NPOE
Life Expectancy
Unknown
Bus
Blok-L
Configuration
Unknown
Motor
Unknown
Equipment
Unknown
Power System
Unknown
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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