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: 9 hours ago
TLE from 9 hours ago
0 DELTA 1 DEB
1 21373U 75052CT 25300.21979829 .00000145 00000-0 38199-3 0 9995
2 21373 99.9536 197.3048 0074002 222.2570 290.4280 13.32620418673285Epoch: 2025-10-27T05:16Z
TLE epoch observation values (Epoch: 2025-10-27T05:16:30.572Z)
Latitude
27.69335°
Longitude
-92.38948°
Altitude
1,121.102 km
Speed
7.304 km/s
True Right ascension
01h 30m 15s
True Declination
27° 33' 32"
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
10:06:39
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,189.826 km
Perigee altitude
1,078.64 km
Semi-major axis
7,512.37 km
Eccentricity
0.0074
Inclination
99.9536°
RAAN
197.3048°
Arg. of periapsis
222.257°
True anomaly
289.63078°
Mean anomaly
290.428°
Eccentric anomaly
290.02965°
Mean motion
3.33333 °/min
Orbital period
108 mins
BSTAR
0.00038199
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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. |
|---|---|---|---|---|---|---|---|
| 9 mins | 2025-10-27 15:29:16.984Z | 99.123° ESE | 2025-10-27 15:34:16.984Z | 53.109° ENE | 18.916° | 2025-10-27 15:38:16.984Z | 16.804° NNE |
| 12 mins | 2025-10-27 17:14:16.984Z | 168.198° S | 2025-10-27 17:19:16.984Z | 221.765° SW | 44.589° | 2025-10-27 17:26:16.984Z | 342.967° N |
| 4 mins | 2025-10-27 19:05:16.984Z | 257.445° W | 2025-10-27 19:07:16.984Z | 275.14° WNW | 12.669° | 2025-10-27 19:09:16.984Z | 292.317° WNW |
| 6 mins | 2025-10-28 04:36:16.984Z | 63.727° ENE | 2025-10-28 04:39:16.984Z | 92.766° ESE | 15.294° | 2025-10-28 04:42:16.984Z | 120.954° SE |
| 11 mins | 2025-10-28 06:21:16.984Z | 12.429° NNE | 2025-10-28 06:26:16.984Z | 275.884° WNW | 44.732° | 2025-10-28 06:32:16.984Z | 201.067° SSW |
| 5 mins | 2025-10-28 08:09:16.984Z | 327.859° NNW | 2025-10-28 08:11:16.984Z | 308.992° NW | 14.806° | 2025-10-28 08:14:16.984Z | 280.497° 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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