X Report 28 Oct 2025
SpaceX successfully launched 28 Starlink satellites and settled a lawsuit, while Starlink's performance faces scrutiny in Ukraine. Additionally, MTN is enhancing Starlink's business services.
SL-6 R/B(1) (20942)
COSPAR: 1990-099B | Alt Name: Molniya-M-PVB 47-658 Blok-I
DECAYED
Image
Additional Sources
Launch Details
Launch Date
November 20, 1990
Launch Site
PLMSC
Launch Pad
LC16/2
Launch Vehicle
Molniya 8K78M-PVB
Orbital Elements
NORAD ID
20942
International Designator
1990-099B
Decay Date
12/23/1990
Basic Satellite Info
Name
SL-6 R/B(1)
Alternative Name
Molniya-M-PVB 47-658 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
8.5379
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 29 Aug 2025
SpaceX celebrates a record-breaking Falcon 9 launch while Starship demonstrates strong performance in its recent test flight, fueling excitement for upcoming projects.
Space Brief 26 Jun 2025
Exploring new defense agreements with Eutelsat, advances in U.S. Space Force projects, and updates on NATO's strategic discussions.
Space Brief 24 Dec 2025
Today's highlights include the successes and setbacks in recent rocket launches, a notable satellite anomaly, and a significant expansion announcement from ESA.
Space Brief 3 Oct 2025
Today's Space Brief delves into military satellite advancements and significant contract awards for space platforms, alongside pivotal European missile warning systems.
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.
Space Brief 19 Nov 2024
Today's brief covers the investigation into Musk-Putin calls, SpaceX launch restrictions impacts, Pentagon's space investment strategies, ABL Space's pivot in focus, and Israel's defense export developments.
Pentagon Pulls the Plug on GPS OCX | The $8 Billion Ground System That Never Worked
On April 17, 2026, the U.S. Space Force officially cancelled the Next Generation Operational Control System after sixteen years of development, cost overruns, and testing failures. The $8 billion program was supposed to unlock the military's encrypted GPS signal. Instead, the satellites are flying with capabilities the ground can't command.