Space Object Catalog
The master ledger of everything orbiting Earth: how tens of thousands of satellites, rocket bodies, and debris fragments are tracked and numbered
DELTA 1 DEB (21499)
COSPAR: 1975-052FU | Alt Name: deb Delta 111
Image
Additional Sources
Launch Details
Launch Date
June 12, 1975
Launch Site
AFWTR
Launch Pad
SLC2W
Launch Vehicle
Delta 2910
Orbital Elements
NORAD ID
21499
International Designator
1975-052FU
Epoch
Thu, 02 Jul 2026 19:57:43 GMT
Apogee
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Perigee
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Inclination
99.61°
Right Ascension
314.57°
Eccentricity
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Argument of Perigee
222.92°
Period
107.38 min
Mean Motion
13.41 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
DELTA 1 DEB
Alternative Name
deb Delta 111
Type
Debris
Status
Space Junk
Owner
GSFC
Country
United States
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 21499U 75052FU 26183.83175788 .00004442 00000-0 76661-2 0 9993
2 21499 99.6115 314.5703 0137804 222.9242 292.5976 13.41032205696560
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
0.0122
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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