Starlink Satellite Count Hits 10,191, X Report 14 Apr 2026
Starlink satellite count April 2026: 10,191 working of 10,209 in orbit. SpaceX flew its 1,000th Starlink of 2026 on April 14, adding 29 more sats.
SL-4 R/B (21817)
COSPAR: 1991-085B | Alt Name: Soyuz-U 32-494 Blok-I
DECAYED
Image
Additional Sources
Launch Details
Launch Date
December 17, 1991
Launch Site
Launch Pad
LC31
Launch Vehicle
Soyuz-U
Orbital Elements
NORAD ID
21817
International Designator
1991-085B
Decay Date
12/22/1991
Basic Satellite Info
Name
SL-4 R/B
Alternative Name
Soyuz-U 32-494 Blok-I
Type
Rocket Body
Status
Space Junk
Owner
RVSNR
Country
USSR
Constellation
N/A
Related Satellites
Major Events
N/A
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
6.7
Diameter
2.7
Span
6.7
Dry Mass
2350
Launch Mass
2350
Shape
Cyl
Radar Cross Section
Unknown
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
11S510
Purpose
Unknown
Mission
Unknown
Manufacturer
PROG
Life Expectancy
Unknown
Bus
Blok-I
Configuration
Unknown
Motor
Unknown
Equipment
Unknown
Power System
Unknown
ADCS
Unknown
Transmitter Frequency
Unknown
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