DELTA 1 DEB, 21545
Orbit data source: Space-Track
DELTA 1 DEB, 21545 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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21545 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, 0.1 m
Radar Cross Section
Small (<0.1 m²)
Expand to show TLE details & historyLast TLE update: 2 days ago
TLE from 2 days ago
0 DELTA 1 DEB
1 21545U 75052GZ 25314.90009578 .00000137 00000-0 37287-3 0 9990
2 21545 99.6602 105.9823 0230119 232.3719 284.3588 13.22205250664031Epoch: 2025-11-10T21:36Z
TLE epoch observation values (Epoch: 2025-11-10T21:36:08.275Z)
Latitude
25.47931°
Longitude
-83.71772°
Altitude
1,139.922 km
Speed
7.304 km/s
True Right ascension
19h 22m 26s
True Declination
25° 21' 10"
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
15:36:44
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,347.424 km
Perigee altitude
999.862 km
Semi-major axis
7,551.78 km
Eccentricity
0.02301
Inclination
99.6602°
RAAN
105.9823°
Arg. of periapsis
232.3719°
True anomaly
281.78672°
Mean anomaly
284.3588°
Eccentric anomaly
283.07449°
Mean motion
3.30727 °/min
Orbital period
108.85 mins
BSTAR
0.00037287
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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. |
|---|---|---|---|---|---|---|---|
| 13 mins | 2025-11-12 22:27:33.702Z | 26.78° NE | 2025-11-12 22:34:33.702Z | 107.914° ESE | 35.927° | 2025-11-12 22:40:33.702Z | 171.13° S |
| 10 mins | 2025-11-13 00:16:33.702Z | 349.562° N | 2025-11-13 00:21:33.702Z | 292.044° WNW | 28.354° | 2025-11-13 00:26:33.702Z | 240.151° WSW |
| 12 mins | 2025-11-13 08:52:33.702Z | 117.524° SE | 2025-11-13 08:58:33.702Z | 58.617° ENE | 28.85° | 2025-11-13 09:04:33.702Z | 4.744° NNE |
| 14 mins | 2025-11-13 10:38:33.702Z | 185.38° SSW | 2025-11-13 10:45:33.702Z | 270.35° WNW | 39.26° | 2025-11-13 10:52:33.702Z | 335.94° 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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