DELTA 1 DEB, 21457
Orbit data source: Space-Track
DELTA 1 DEB, 21457 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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21457 intel report (Beta)
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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, 0.1 m
Radar Cross Section
Small (<0.1 m²)
Expand to show TLE details & historyLast TLE update: 5 hours ago
TLE from 5 hours ago
0 DELTA 1 DEB
1 21457U 75052ER 26127.20581920 .00001129 00000-0 15902-2 0 9995
2 21457 99.9595 40.9164 0282831 259.5082 263.1921 13.44284696696828Epoch: 2026-05-07T04:56Z
TLE epoch observation values (Epoch: 2026-05-07T04:56:22.778Z)
Latitude
20.18501°
Longitude
-74.55138°
Altitude
1,126.66 km
Speed
7.276 km/s
True Right ascension
14h 58m 23s
True Declination
20° 04' 46"
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
18:16:52
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,301.921 km
Perigee altitude
879.439 km
Semi-major axis
7,468.817 km
Eccentricity
0.02828
Inclination
99.9595°
RAAN
40.9164°
Arg. of periapsis
259.5082°
True anomaly
259.98905°
Mean anomaly
263.1921°
Eccentric anomaly
261.58903°
Mean motion
3.36252 °/min
Orbital period
107.06 mins
BSTAR
0.0015902
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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. |
|---|---|---|---|---|---|---|---|
| 11 mins | 2026-05-07 16:46:14.851Z | 111.545° ESE | 2026-05-07 16:51:14.851Z | 63.774° ENE | 25.747° | 2026-05-07 16:57:14.851Z | 7.323° NNE |
| 12 mins | 2026-05-07 18:31:14.851Z | 182.805° SSW | 2026-05-07 18:36:14.851Z | 250.003° W | 41.32° | 2026-05-07 18:43:14.851Z | 336.916° NNW |
| 9 mins | 2026-05-08 05:47:14.851Z | 50.431° ENE | 2026-05-08 05:51:14.851Z | 89.021° E | 20.693° | 2026-05-08 05:56:14.851Z | 138.012° SSE |
| 13 mins | 2026-05-08 07:31:14.851Z | 8.654° NNE | 2026-05-08 07:37:14.851Z | 304.453° NW | 42.578° | 2026-05-08 07:44:14.851Z | 209.15° SW |
| 4 mins | 2026-05-08 09:20:14.851Z | 321.176° NNW | 2026-05-08 09:21:14.851Z | 312.502° NW | 13.263° | 2026-05-08 09:24:14.851Z | 286.658° WNW |
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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