DELTA 1 DEB, 21373
Orbit data source: Space-Track
DELTA 1 DEB, 21373 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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21373 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: 21 hours ago
TLE from 21 hours ago
0 DELTA 1 DEB
1 21373U 75052CT 25350.45132162 .00000102 00000-0 29206-3 0 9999
2 21373 99.9544 245.9913 0075149 101.9002 75.1096 13.32640650679976Epoch: 2025-12-16T10:49Z
TLE epoch observation values (Epoch: 2025-12-16T10:49:54.187Z)
Latitude
2.0247°
Longitude
178.53386°
Altitude
1,125.215 km
Speed
7.297 km/s
True Right ascension
04h 25m 22s
True Declination
2° 00' 47"
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
06:19:10
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,190.611 km
Perigee altitude
1,077.703 km
Semi-major axis
7,512.294 km
Eccentricity
0.00751
Inclination
99.9544°
RAAN
245.9913°
Arg. of periapsis
101.9002°
True anomaly
75.94381°
Mean anomaly
75.1096°
Eccentric anomaly
75.52651°
Mean motion
3.33338 °/min
Orbital period
108 mins
BSTAR
0.00029206
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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. |
|---|---|---|---|---|---|---|---|
| 4 mins | 2025-12-17 08:10:53.642Z | 324.7° NNW | 2025-12-17 08:12:53.642Z | 305.71° NW | 13.008° | 2025-12-17 08:14:53.642Z | 286.838° WNW |
| 12 mins | 2025-12-17 16:41:53.642Z | 147.822° SSE | 2025-12-17 16:47:53.642Z | 48.911° ENE | 41.51° | 2025-12-17 16:53:53.642Z | 351.435° N |
| 8 mins | 2025-12-17 18:30:53.642Z | 230.299° WSW | 2025-12-17 18:33:53.642Z | 261.691° W | 19.834° | 2025-12-17 18:38:53.642Z | 312.334° NW |
| 12 mins | 2025-12-18 05:47:53.642Z | 24.253° NE | 2025-12-18 05:52:53.642Z | 81.392° E | 40.955° | 2025-12-18 05:59:53.642Z | 182.721° SSW |
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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