Space Brief 15 Jul 2025
Today's brief covers new military space funding, intriguing scientific discoveries, and defense contracts impacting global military strategies.
SL-4 R/B (10320)
COSPAR: 1977-083B | Alt Name: Soyuz-U 38-035 Blok-I
DECAYED
Image
Additional Sources
Launch Details
Launch Date
September 2, 1977
Launch Site
PLMSC
Launch Pad
LC43/4
Launch Vehicle
Soyuz-U
Orbital Elements
NORAD ID
10320
International Designator
1977-083B
Decay Date
9/7/1977
Basic Satellite Info
Name
SL-4 R/B
Alternative Name
Soyuz-U 38-035 Blok-I
Type
Rocket Body
Status
Space Junk
Owner
RVSN
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
Satellite Articles
View All Posts »Learn more about satellites and other related topics.
X Report 27 Apr 2025
SpaceX gears up for two major Starlink launches, while regulatory challenges slow progress in India.
STS-30 | When Atlantis Sent a Radar to Venus
On May 4, 1989, Space Shuttle Atlantis lifted off from LC-39B carrying Magellan, NASA's first interplanetary mission since 1978. The eleven-year drought ended in a payload bay, and the radar that emerged would map ninety-eight percent of Venus through clouds that no camera could ever see through.
X Report 22 Jun 2025
Key updates include the impending Falcon 9 launch for Transporter-14, insights on Starship's explosion, and a last-minute abort of the Starlink 10-23 mission.
Space Brief 30 Jul 2025
Today's highlights include Space Force's new satcom design contracts, advances in AI training tools, Pentagon drone policy shifts, and the first Eris launch's failure.
X Report 20 Aug 2025
SpaceX makes significant strides with Starship Flight Test 10 approved and updates on the new Starbase pad design.
SpaceX Stock Eyed for US Kids' Savings Accounts | KeepTrack X Report
Trump reportedly asked Musk to donate SpaceX equity to seed children's savings accounts as Starlink tops 10,706 working satellites in orbit.
Space Brief 3 Sep 2024
Today's brief covers China's Yaogan-43 satellite launch, delays in ESA's BepiColombo mission, regulatory approval for OHB's KKR deal, and an upcoming Sentinel-2C launch.