DELTA 1 DEB, 21438
Orbit data source: Space-Track
DELTA 1 DEB, 21438 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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21438 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: 13 hours ago
TLE from 13 hours ago
0 DELTA 1 DEB
1 21438U 75052DW 25289.56737203 .00000175 00000-0 44770-3 0 9994
2 21438 99.7189 212.9230 0080071 141.5866 39.1064 13.30924513671838Epoch: 2025-10-16T13:37Z
TLE epoch observation values (Epoch: 2025-10-16T13:37:00.943Z)
Latitude
-1.37715°
Longitude
163.10913°
Altitude
1,099.678 km
Speed
7.325 km/s
True Right ascension
02h 10m 45s
True Declination
-1° 22' 09"
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
21:14:17
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,200.809 km
Perigee altitude
1,080.402 km
Semi-major axis
7,518.743 km
Eccentricity
0.00801
Inclination
99.7189°
RAAN
212.923°
Arg. of periapsis
141.5866°
True anomaly
39.68967°
Mean anomaly
39.1064°
Eccentric anomaly
39.39758°
Mean motion
3.32909 °/min
Orbital period
108.14 mins
BSTAR
0.0004477
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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 | 2025-10-17 07:21:20.122Z | 26.14° NE | 2025-10-17 07:27:20.122Z | 93.86° ESE | 37.094° | 2025-10-17 07:33:20.122Z | 172.653° S |
| 8 mins | 2025-10-17 09:10:20.122Z | 341.311° N | 2025-10-17 09:14:20.122Z | 290.34° WNW | 25.39° | 2025-10-17 09:18:20.122Z | 246.844° WSW |
| 9 mins | 2025-10-17 17:44:20.122Z | 112.088° ESE | 2025-10-17 17:48:20.122Z | 67.244° ENE | 26.869° | 2025-10-17 17:53:20.122Z | 10.664° NNE |
| 12 mins | 2025-10-17 19:29:20.122Z | 189.026° SSW | 2025-10-17 19:35:20.122Z | 270.979° WNW | 37.188° | 2025-10-17 19:41:20.122Z | 333.78° 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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