DELTA 1 DEB, 21279
Orbit data source: Space-Track
DELTA 1 DEB, 21279 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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21279 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: 20 hours ago
TLE from 20 hours ago
0 DELTA 1 DEB
1 21279U 75052Q 25290.98656985 .00000123 00000-0 22895-3 0 9999
2 21279 99.4249 95.6458 0055052 330.7691 152.3194 13.57531662706189Epoch: 2025-10-17T23:40Z
TLE epoch observation values (Epoch: 2025-10-17T23:40:39.635Z)
Latitude
55.5611°
Longitude
-92.30744°
Altitude
1,090.069 km
Speed
7.295 km/s
True Right ascension
19h 18m 19s
True Declination
55° 24' 28"
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
14:52:34
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,082.802 km
Perigee altitude
1,001.104 km
Semi-major axis
7,420.09 km
Eccentricity
0.00551
Inclination
99.4249°
RAAN
95.6458°
Arg. of periapsis
330.7691°
True anomaly
152.61068°
Mean anomaly
152.3194°
Eccentric anomaly
152.46522°
Mean motion
3.3957 °/min
Orbital period
106.02 mins
BSTAR
0.00022895
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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. |
|---|---|---|---|---|---|---|---|
| 8 mins | 2025-10-18 22:41:48.659Z | 49.924° ENE | 2025-10-18 22:45:48.659Z | 91.743° ESE | 20.46° | 2025-10-18 22:49:48.659Z | 134.289° SE |
| 11 mins | 2025-10-19 00:25:48.659Z | 4.764° NNE | 2025-10-19 00:30:48.659Z | 292.174° WNW | 41.539° | 2025-10-19 00:36:48.659Z | 211.422° SW |
| 10 mins | 2025-10-19 10:34:48.659Z | 143.256° SSE | 2025-10-19 10:38:48.659Z | 85.791° E | 40.395° | 2025-10-19 10:44:48.659Z | 354.506° N |
| 8 mins | 2025-10-19 12:20:48.659Z | 229.006° WSW | 2025-10-19 12:23:48.659Z | 262.512° W | 20.092° | 2025-10-19 12:28:48.659Z | 314.973° NW |
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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