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TANSEI-3 DEB (12857)
COSPAR: 1977-012H | Alt Name: KM-A motor debris
Image
Additional Sources
Launch Details
Launch Date
February 19, 1977
Launch Site
KSCUT
Launch Pad
M
Launch Vehicle
Mu-3H
Orbital Elements
NORAD ID
12857
International Designator
1977-012H
Epoch
Fri, 03 Jul 2026 18:34:19 GMT
Apogee
Calculating...
Perigee
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Inclination
66.30°
Right Ascension
316.56°
Eccentricity
Calculating...
Argument of Perigee
185.73°
Period
133.50 min
Mean Motion
10.79 rev/day
Latitude
Calculating...
Longitude
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Altitude
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Velocity
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Polar Plot
3D Visualization
Basic Satellite Info
Name
TANSEI-3 DEB
Alternative Name
KM-A motor debris
Type
Debris
Status
Space Junk
Owner
ISAS
Country
Japan
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 12857U 77012H 26184.77384238 .00000596 00000-0 18463-2 0 9997
2 12857 66.3021 316.5566 1696415 185.7332 172.1675 10.78627105773481
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
0.066
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
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