NASA Awards Private Mars Orbiter Contract for 2028 | KeepTrack X Report
A California firm wins NASA's Aeolus Mars orbiter contract, targeting 2028 launch for the first daily global Martian environment measurements.
SL-4 R/B (39187)
COSPAR: 2013-030B | Alt Name: Soyuz-2-1b No. 013 Blok-I
DECAYED
Image
Additional Sources
Launch Details
Launch Date
June 25, 2013
Launch Site
Launch Pad
LC31
Launch Vehicle
Soyuz-2-1B
Orbital Elements
NORAD ID
39187
International Designator
2013-030B
Decay Date
9/25/2013
Basic Satellite Info
Name
SL-4 R/B
Alternative Name
Soyuz-2-1b No. 013 Blok-I
Type
Rocket Body
Status
Space Junk
Owner
VVKO
Country
Russia
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
2710
Launch Mass
2710
Shape
Cyl
Radar Cross Section
9.2329
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
Blok-I 14S54
Purpose
Unknown
Mission
Unknown
Manufacturer
PROGT
Life Expectancy
Unknown
Bus
Blok-I
Configuration
Unknown
Motor
Unknown
Equipment
Unknown
Power System
Unknown
ADCS
Unknown
Transmitter Frequency
Unknown
Satellite Articles
View All Posts »Learn more about satellites and other related topics.
X Report 17 Jun 2025
SpaceX successfully launched 26 Starlink satellites from California, preparing for upcoming crewed missions to the ISS.
X Report 4 Mar 2025
SpaceX faces a series of challenges with scrubbing the Starship Flight 8 launch and losing a Falcon 9 booster post-landing, while successfully deploying new Starlink satellites.
NASA Expands SpaceX Crew Contract as Boeing Stalls | KeepTrack X Report
NASA adds crew missions to SpaceX's contract as Boeing Starliner certification stalls, while Falcon 9 hits its 60th orbital launch of 2026.
Pentagon Reveals Space & Cyber "First Mover" Role in Iran Operations | KeepTrack Space Brief
Space & Cyber Command disrupted Iran ops as US munition stockpiles drop. Space Force shifts to commercial ground stations & faces acquisition workforce gaps.
Blue Origin's New Glenn Explodes During Ground Test | KeepTrack Space Brief
Blue Origin's New Glenn rocket exploded during ground testing May 28, visible from hundreds of miles across Florida. Fireball halts vehicle pending failure investigation.
X Report 29 Dec 2024
SpaceX wraps up 2024 with successful Starlink and Astranis launches, while reflecting on a monumental year for the Starship program.
Rocket Lab Acquires 66-Satellite Iridium Constellation | KeepTrack Space Brief
Rocket Lab to acquire Iridium's 66-satellite LEO constellation for end-to-end vertical integration. Deal includes spacecraft manufacturing, launch, and on-orbit operations control.