Japan's H3 Returns to Flight With 6 Satellites | KeepTrack Space Brief
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SL-8 DEB (18501)
COSPAR: 1978-019E | Alt Name: deb Kosmos-990 [UNID]
Image
Additional Sources
Launch Details
Launch Date
February 17, 1978
Launch Site
PLMSC
Launch Pad
LC132/2
Launch Vehicle
Kosmos 11K65M
Orbital Elements
NORAD ID
18501
International Designator
1978-019E
Epoch
Sat, 04 Jul 2026 05:22:22 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
74.05°
Right Ascension
100.15°
Eccentricity
Calculating...
Argument of Perigee
244.34°
Period
97.35 min
Mean Motion
14.79 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Polar Plot
3D Visualization
Basic Satellite Info
Name
SL-8 DEB
Alternative Name
deb Kosmos-990 [UNID]
Type
Debris
Status
Space Junk
Owner
GUKOSR
Country
USSR
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 18501U 78019E 26185.22387373 .00004477 00000-0 60707-3 0 9992
2 18501 74.0514 100.1493 0010366 244.3363 268.1441 14.79181535190333
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
0.0164
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
Strela-2M debris
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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