DELTA 1 DEB, 21453
Orbit data source: Space-Track
DELTA 1 DEB, 21453 is space debris in SSO originally from a launch on Thu, 12 Jun 1975 UTC launched from the Air Force Western Test Range (AFWTR). Debris objects in space refer to the collection of defunct objects orbiting the Earth. Examples of debris include non-operational satellites, rocket bodies, and fragments generated from explosions, collisions, or faulty payload assembly.
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21453 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
USRelated business
Manufacturer
Unknown
Mission
Spacecraft
Bus & Motor
Unknown
Mass
Unknown
Launch date (UTC)
Launch vehicle
Unknown
Launch site
Object type
Shape & HBR
Unknown shape, 0.2 m
Radar Cross Section
Small (<0.1 m²)
Expand to show TLE details & historyLast TLE update: 19 hours ago
TLE from 19 hours ago
0 DELTA 1 DEB
1 21453U 75052EM 25315.99446325 .00000308 00000-0 75702-3 0 9997
2 21453 99.8395 112.6290 0119793 221.9460 257.1852 13.26826364669962Epoch: 2025-11-11T23:52Z
TLE epoch observation values (Epoch: 2025-11-11T23:52:01.624Z)
Latitude
60.736°
Longitude
-98.81481°
Altitude
1,190.075 km
Speed
7.254 km/s
True Right ascension
20h 42m 15s
True Declination
60° 35' 51"
Sunlit
Visualization orbit readout
Latitude
Unknown
Longitude
Unknown
Altitude
Unknown
Speed
Unknown
Apparent Right ascension
Unknown
Apparent Declination
Unknown
Sunlit
Visualization observer readout
Local Sidereal Time
15:34:47
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,246.352 km
Perigee altitude
1,065.842 km
Semi-major axis
7,534.234 km
Eccentricity
0.01198
Inclination
99.8395°
RAAN
112.629°
Arg. of periapsis
221.946°
True anomaly
255.85122°
Mean anomaly
257.1852°
Eccentric anomaly
256.51775°
Mean motion
3.31883 °/min
Orbital period
108.47 mins
BSTAR
0.00075702
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Other satellites on launch #52 in the year 1975 (1975-06-12 UTC)
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You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.DELTA 1 DEB Visibility forecast
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Span | Click to sort rows by Start time (UTC) header in descending order | Start Az. | Max El. time (UTC) | Max El. Az. | Max El. | End time (UTC) | End Az. |
|---|---|---|---|---|---|---|---|
| 12 mins | 2025-11-12 23:24:36.760Z | 18.301° NNE | 2025-11-12 23:30:36.760Z | 142.445° SSE | 44.262° | 2025-11-12 23:36:36.760Z | 191.585° SSW |
| 7 mins | 2025-11-13 01:13:36.760Z | 331.225° NNW | 2025-11-13 01:16:36.760Z | 300.121° NW | 18.568° | 2025-11-13 01:20:36.760Z | 262.636° W |
| 12 mins | 2025-11-13 09:46:36.760Z | 135.823° SSE | 2025-11-13 09:52:36.760Z | 57.744° ENE | 37.533° | 2025-11-13 09:58:36.760Z | 356.945° N |
| 11 mins | 2025-11-13 11:34:36.760Z | 212.88° SW | 2025-11-13 11:39:36.760Z | 269.297° W | 27.904° | 2025-11-13 11:45:36.760Z | 324.906° NNW |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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