DELTA 1 DEB, 21290
Orbit data source: Space-Track
DELTA 1 DEB, 21290 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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21290 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
Radar Cross Section
Small (<0.1 m²)
Expand to show TLE details & historyLast TLE update: 18 hours ago
TLE from 18 hours ago
0 DELTA 1 DEB
1 21290U 75052AB 25258.84367765 .00000061 00000-0 41388-3 0 9995
2 21290 99.5354 211.6802 0513741 16.8495 36.2878 12.43313726558740Epoch: 2025-09-15T20:14Z
TLE epoch observation values (Epoch: 2025-09-15T20:14:53.748Z)
Latitude
55.7137°
Longitude
-101.27475°
Altitude
1,183.489 km
Speed
7.413 km/s
True Right ascension
13h 09m 58s
True Declination
55° 33' 45"
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
06:37:46
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,894.234 km
Perigee altitude
1,085.796 km
Semi-major axis
7,868.152 km
Eccentricity
0.05137
Inclination
99.5354°
RAAN
211.6802°
Arg. of periapsis
16.8495°
True anomaly
39.95922°
Mean anomaly
36.2878°
Eccentric anomaly
38.10423°
Mean motion
3.10981 °/min
Orbital period
115.76 mins
BSTAR
0.00041388
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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 | 2025-09-16 19:18:10.568Z | 102.521° ESE | 2025-09-16 19:23:10.568Z | 51.693° ENE | 20.037° | 2025-09-16 19:27:10.568Z | 14.584° NNE |
| 11 mins | 2025-09-16 21:11:10.568Z | 180.525° SSW | 2025-09-16 21:16:10.568Z | 261.072° W | 41.859° | 2025-09-16 21:22:10.568Z | 338.08° N |
| 17 mins | 2025-09-17 09:16:10.568Z | 25.908° NE | 2025-09-17 09:23:10.568Z | 99.755° ESE | 41.13° | 2025-09-17 09:33:10.568Z | 180.226° SSW |
| 15 mins | 2025-09-17 11:10:10.568Z | 353.62° N | 2025-09-17 11:17:10.568Z | 292.09° WNW | 30.294° | 2025-09-17 11:25:10.568Z | 237.58° WSW |
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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