X Report 8 Jan 2025
SpaceX gears up for distinctive Starship tests and milestone Starlink deployments as the new year takes off.
SL-6 R/B(1) (16684)
COSPAR: 1986-031B | Alt Name: Molniya-M 46-673 Blok-I
DECAYED
Image
Additional Sources
Launch Details
Launch Date
April 18, 1986
Launch Site
PLMSC
Launch Pad
LC41/1
Launch Vehicle
Molniya 8K78M
Orbital Elements
NORAD ID
16684
International Designator
1986-031B
Decay Date
7/4/1986
Basic Satellite Info
Name
SL-6 R/B(1)
Alternative Name
Molniya-M 46-673 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
47.24
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.
Space Brief 24 May 2025
Today's key space events include a milestone Falcon booster landing, advances in US military satellite operations, and a new missile defense initiative.
Space Brief 5 Sep 2024
Today we cover the final launch of Vega's original version, a significant milestone for SpaceX with the U.S. military, preparations for NASA's Starliner return, and more.
Space Brief 16 Jan 2025
Explore today's pivotal news in space with highlights on record government space budgets, military satellite developments, and significant industry shifts.
Who Owns SpaceX in 2026? Ownership, Valuation, and the Trillion-Dollar IPO
Elon Musk controls 79% of SpaceX's votes with just 42% of the equity - and the company just merged with his AI startup at a $1.25 trillion valuation. Here's who actually owns what, how the money works, and what a $1.75 trillion IPO means for investors.
Falcon 9 Lofts 46 Payloads Including CAS500-2 | KeepTrack X Report
SpaceX's third rideshare mission of 2026 delivered South Korea's CAS500-2 imager and 45 secondary payloads to Sun-synchronous orbit on Falcon 9.
Space Brief 21 Dec 2025
Today's briefing highlights the SDA's significant satellite award, Blue Origin's groundbreaking flight, and NASA's call for an Artemis review.
Space Brief 13 Mar 2025
Today's space brief highlights intriguing military satellite developments, new space launch strategies to counteract observation threats, and potential European defense industry advancements.