Space Brief 15 Feb 2025
Today's highlights include SpaceX's record-setting Starlink launch, Redwire's contract for USSF, and military satellite developments.
SL-12 DEB (21725)
COSPAR: 1987-036N | Alt Name: deb DM2-18L
Image
Additional Sources
Launch Details
Launch Date
April 24, 1987
Launch Site
Launch Pad
LC200/40
Launch Vehicle
Proton-K/DM-2
Orbital Elements
NORAD ID
21725
International Designator
1987-036N
Epoch
Sat, 04 Jul 2026 03:33:01 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
64.59°
Right Ascension
92.08°
Eccentricity
Calculating...
Argument of Perigee
196.14°
Period
114.36 min
Mean Motion
12.59 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Polar Plot
3D Visualization
Basic Satellite Info
Name
SL-12 DEB
Alternative Name
deb DM2-18L
Type
Debris
Status
Space Junk
Owner
RVSN
Country
USSR
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 21725U 87036N 26185.14793942 .00035702 00000-0 83690-1 0 9996
2 21725 64.5943 92.0758 0688783 196.1361 161.6673 12.59229134268710
Source: Celestrak
Summary
Space debris, also known as space junk, encompasses all non-functional objects orbiting Earth such as defunct satellites, spent rocket stages, and fragments from collisions or disintegrations. Over time, this debris can accumulate and create an increasingly hazardous environment in orbit. Even tiny fragments, traveling at extremely high velocities, can inflict significant damage on operational satellites and spacecraft. If left unmanaged, the density of debris raises the risk of catastrophic collisions and further fragmentation, compounding the problem and threatening the safety and sustainability of space activities.
Physical Characteristics
Length
0
Diameter
0
Span
0
Dry Mass
0
Launch Mass
0
Shape
N/A
Radar Cross Section
0.029
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
Unknown
Purpose
Unknown
Mission
Unknown
Manufacturer
Unknown
Life Expectancy
Unknown
Bus
Unknown
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.
X Report 3 Dec 2024
Starship developments continue to capture attention alongside Starlink's latest deployment milestones.
China's iSpace Raises Record $729M for Reusable Rockets | KeepTrack Space Brief
China's iSpace secures record $729M for reusable rocket development. SpaceX launches Crew-12 and lands booster at new LZ-40 pad. Startup bets on space-based missile defense.
Track the International Space Station
A look at how tracking the space station offers a unique view of space exploration.
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.
X Report 2 Sep 2025
SpaceX kicks off a busy week with five Falcon 9 missions planned, while the impressive layout of Raptor engines on Starship captures imaginations.
X Report 4 Nov 2025
Tesla's Cybertruck fleet integrates with SpaceX operations at Starbase, showcasing synergy between Musk's companies.
Space Brief 14 Jan 2025
Today's brief focuses on Blue Origin's scrubbed New Glenn launch, SpaceX's reusability milestone, and a warning from the US Air Force about China's advancements in space capabilities. We're also highlighting a key satellite in orbit.