Space Brief 22 Aug 2025
SpaceX's X-37B spaceplane launch, featuring advanced tech, highlights today’s space events. The launch of the first reprogrammable navigation satellite by the US Space Force is another significant milestone.
M-3H DEB (27731)
COSPAR: 1978-087C | Alt Name: KM part
Image
Additional Sources
Launch Details
Launch Date
September 16, 1978
Launch Site
KSCUT
Launch Pad
M
Launch Vehicle
Mu-3H
Orbital Elements
NORAD ID
27731
International Designator
1978-087C
Epoch
Fri, 03 Jul 2026 08:35:48 GMT
Apogee
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Perigee
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Inclination
31.34°
Right Ascension
267.13°
Eccentricity
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Argument of Perigee
17.06°
Period
195.90 min
Mean Motion
7.35 rev/day
Latitude
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Longitude
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Altitude
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Velocity
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Polar Plot
3D Visualization
Basic Satellite Info
Name
M-3H DEB
Alternative Name
KM part
Type
Debris
Status
Space Junk
Owner
ISAS
Country
Japan
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 27731U 78087C 26184.35819455 .00026739 00000-0 11233-2 0 9990
2 27731 31.3355 267.1251 4066253 17.0629 19.0968 7.35069430252051
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
0.0048
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
Unknown
Purpose
Unknown
Mission
Unknown
Manufacturer
NISS
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
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