DELTA 1 DEB, 21288
Orbit data source: Space-Track
DELTA 1 DEB, 21288 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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21288 intel report (Beta)
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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, 0.3 m
Radar Cross Section
Medium (>0.1 m² and <1 m²)
Expand to show TLE details & historyLast TLE update: 1 day ago
TLE from 1 day ago
0 DELTA 1 DEB
1 21288U 75052Z 26135.28858896 -.00000050 00000-0 -46204-4 0 9998
2 21288 99.6903 69.2240 0355763 257.4404 261.4506 12.75774743630838Epoch: 2026-05-15T06:55Z
TLE epoch observation values (Epoch: 2026-05-15T06:55:34.086Z)
Latitude
24.75398°
Longitude
-83.19652°
Altitude
1,411.723 km
Speed
7.133 km/s
True Right ascension
16h 54m 52s
True Declination
24° 38' 04"
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
17:18:28
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,631.05 km
Perigee altitude
1,080.753 km
Semi-major axis
7,734.038 km
Eccentricity
0.03558
Inclination
99.6903°
RAAN
69.224°
Arg. of periapsis
257.4404°
True anomaly
257.44889°
Mean anomaly
261.4506°
Eccentric anomaly
259.44671°
Mean motion
3.19105 °/min
Orbital period
112.82 mins
BSTAR
-0.000046204
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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. |
|---|---|---|---|---|---|---|---|
| 16 mins | 2026-05-16 09:02:37.186Z | 7.35° NNE | 2026-05-16 09:10:37.186Z | 300.017° NW | 40.654° | 2026-05-16 09:18:37.186Z | 215.735° SW |
| 6 mins | 2026-05-16 10:57:37.186Z | 330.244° NNW | 2026-05-16 10:59:37.186Z | 316.052° NNW | 13.36° | 2026-05-16 11:03:37.186Z | 287.525° WNW |
| 13 mins | 2026-05-16 17:59:37.186Z | 109.457° ESE | 2026-05-16 18:05:37.186Z | 58.272° ENE | 27.605° | 2026-05-16 18:12:37.186Z | 4.526° NNE |
| 16 mins | 2026-05-16 19:48:37.186Z | 177.624° S | 2026-05-16 19:55:37.186Z | 247.435° WSW | 42.733° | 2026-05-16 20:04:37.186Z | 340.07° N |
| 5 mins | 2026-05-16 21:46:37.186Z | 263.414° W | 2026-05-16 21:48:37.186Z | 277.221° WNW | 12.096° | 2026-05-16 21:51:37.186Z | 297.204° NW |
| 14 mins | 2026-05-17 07:40:37.186Z | 30.404° NE | 2026-05-17 07:47:37.186Z | 103.206° ESE | 35.839° | 2026-05-17 07:54:37.186Z | 168.253° S |
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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