DELTA 1 DEB, 21566
Orbit data source: Space-Track
DELTA 1 DEB, 21566 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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21566 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: 14 hours ago
TLE from 14 hours ago
0 DELTA 1 DEB
1 21566U 75052HL 25287.57654405 .00000182 00000-0 72902-3 0 9993
2 21566 99.5976 325.0150 0323813 326.1599 190.1236 12.83832610612148Epoch: 2025-10-14T13:50Z
TLE epoch observation values (Epoch: 2025-10-14T13:50:13.405Z)
Latitude
24.00265°
Longitude
-81.6065°
Altitude
1,574.685 km
Speed
6.969 km/s
True Right ascension
09h 57m 14s
True Declination
23° 53' 18"
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
22:17:00
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,572.869 km
Perigee altitude
1,074.092 km
Semi-major axis
7,701.617 km
Eccentricity
0.03238
Inclination
99.5976°
RAAN
325.015°
Arg. of periapsis
326.1599°
True anomaly
189.49642°
Mean anomaly
190.1236°
Eccentric anomaly
189.80757°
Mean motion
3.21122 °/min
Orbital period
112.11 mins
BSTAR
0.00072902
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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 | 2025-10-15 04:05:45.195Z | 230.19° WSW | 2025-10-15 04:09:45.195Z | 266.854° W | 18.704° | 2025-10-15 04:14:45.195Z | 311.479° NW |
| 12 mins | 2025-10-15 13:58:45.195Z | 44.514° NE | 2025-10-15 14:04:45.195Z | 92.618° ESE | 23.46° | 2025-10-15 14:10:45.195Z | 139.444° SSE |
| 15 mins | 2025-10-15 15:48:45.195Z | 9.432° NNE | 2025-10-15 15:55:45.195Z | 280.459° WNW | 43.934° | 2025-10-15 16:03:45.195Z | 206.422° SW |
| 9 mins | 2025-10-15 17:40:45.195Z | 336.427° NNW | 2025-10-15 17:44:45.195Z | 306.086° NW | 17.467° | 2025-10-15 17:49:45.195Z | 270.889° WNW |
| 8 mins | 2025-10-16 00:44:45.195Z | 84.709° E | 2025-10-16 00:47:45.195Z | 56.663° ENE | 18.616° | 2025-10-16 00:52:45.195Z | 14.844° NNE |
| 13 mins | 2025-10-16 02:31:45.195Z | 165.955° S | 2025-10-16 02:37:45.195Z | 318.968° NNW | 44.645° | 2025-10-16 02:44:45.195Z | 344.621° N |
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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