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SL-6 R/B(2) (20666)
COSPAR: 1990-055D | Alt Name: Blok-2BL 45-680
Image
Additional Sources
Launch Details
Launch Date
June 21, 1990
Launch Site
PLMSC
Launch Pad
LC43/3
Launch Vehicle
Molniya 8K78M
Orbital Elements
NORAD ID
20666
International Designator
1990-055D
Epoch
Sat, 04 Jul 2026 01:40:28 GMT
Apogee
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Perigee
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Inclination
62.78°
Right Ascension
217.92°
Eccentricity
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Argument of Perigee
7.43°
Period
95.74 min
Mean Motion
15.04 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-2BL 45-680
Type
Rocket Body
Status
Space Junk
Owner
RVSN
Country
USSR
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 20666U 90055D 26185.06977461 .00001818 00000-0 14285-3 0 9992
2 20666 62.7801 217.9244 0043368 7.4323 352.7410 15.04056150955691
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
4.32
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
Blok-2BL No. 77345-680
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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