Space Brief 10 Jun 2025
Today's brief covers increased Space Force funding, a renewed focus on nuclear power in space, a proposed US missile defense system, new defense budget revelations, and NATO's call for increased air defenses.
SL-6 R/B(2) (07373)
COSPAR: 1974-026E | Alt Name: Blok-L
Image
Additional Sources
Launch Details
Launch Date
April 26, 1974
Launch Site
PLMSC
Launch Pad
LC41/1
Launch Vehicle
Molniya 8K78M
Orbital Elements
NORAD ID
07373
International Designator
1974-026E
Epoch
Wed, 01 Jul 2026 22:52:51 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
64.09°
Right Ascension
292.09°
Eccentricity
Calculating...
Argument of Perigee
268.72°
Period
697.04 min
Mean Motion
2.07 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Polar Plot
3D Visualization
Basic Satellite Info
Name
SL-6 R/B(2)
Alternative Name
Blok-L
Type
Rocket Body
Status
Space Junk
Owner
RVSN
Country
USSR
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 07373U 74026E 26182.95337625 .00000104 00000-0 00000-0 0 9993
2 07373 64.0854 292.0934 7077728 268.7249 16.9206 2.06589015387248
Source: Celestrak
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
3.3
Diameter
2.4
Span
3.3
Dry Mass
1000
Launch Mass
4500
Shape
Cyl
Radar Cross Section
7.696
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
Blok-L
Purpose
Unknown
Mission
Unknown
Manufacturer
RKKE
Life Expectancy
Unknown
Bus
Blok-L
Configuration
Unknown
Motor
Unknown
Equipment
Unknown
Power System
Unknown
ADCS
Unknown
Transmitter Frequency
Unknown
Map
Next Pass
Azimuth Elevation Time (Local)
Start Azimuth
Max Elevation
Stop Azimuth
Time Until
Pass Duration
Satellite Articles
View All Posts »Learn more about satellites and other related topics.
Space Force Gets $26B in Defense Bill, Golden Dome Initiative Funded | KeepTrack Space Brief
Space Force allocated $26B in 2026 defense appropriations backing Golden Dome initiative. FY26 defense bill adds $8B but sidelines $28B munitions request. First Qatari-Emirati joint defense venture formed.
SpaceX Plans Three Launches This Week Including ISRO Rideshare | KeepTrack X Report
SpaceX targets three launches this week including a rideshare mission with India's ISRO into Sun-Synchronous Orbit. Starlink network continues expanding with ongoing satellite deployments.
Vulcan Set to Open 2026 With USSF-87 National Security Launch | KeepTrack Space Brief
ULA's Vulcan rocket preps for USSF-87 national security launch to open 2026. Sierra Space delivers SDA Tranche 2 satellites three months early. NASA delays spacewalk for Crew-11 medical issue.
Space Brief 7 Feb 2025
Today's highlights include significant legal disputes in military satellite contracts, strategic investments in the defense space sector, and updates on major military budget developments impacting space capabilities.
Space Brief 4 Apr 2025
Today's highlights include the release of a mystery object by Russian military satellites, SpaceX Fram2 mission insights, Amazon's upcoming satellite launch, and more.
Space Brief 29 Jul 2025
Today's brief covers developments in space traffic management, the X-37B spaceplane's upcoming mission, and satellite interference with radio telescopes.
X Report 6 Sep 2025
SpaceX successfully launched 28 Starlink satellites, marking a significant milestone with its 500th Falcon rocket landing. Meanwhile, the Starship program reflects on its journey through ten flights, and competition with Amazon's Project Kuiper heats up as JetBlue opts for their in-flight Wi-Fi service.