DELTA 1 DEB, 21289
Orbit data source: Space-Track
DELTA 1 DEB, 21289 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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21289 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, 0.1 m
Radar Cross Section
Small (<0.1 m²)
Expand to show TLE details & historyLast TLE update: 9 hours ago
TLE from 9 hours ago
0 DELTA 1 DEB
1 21289U 75052AA 26101.25626571 -.00000037 00000-0 38740-5 0 9993
2 21289 99.8868 93.4472 0245931 160.2318 220.2291 13.00033407655854Epoch: 2026-04-11T06:09Z
TLE epoch observation values (Epoch: 2026-04-11T06:09:01.357Z)
Latitude
18.3904°
Longitude
158.40778°
Altitude
1,409.505 km
Speed
7.089 km/s
True Right ascension
06h 00m 33s
True Declination
18° 17' 47"
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
21:03:05
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,447.164 km
Perigee altitude
1,071.506 km
Semi-major axis
7,637.472 km
Eccentricity
0.02459
Inclination
99.8868°
RAAN
93.4472°
Arg. of periapsis
160.2318°
True anomaly
218.45106°
Mean anomaly
220.2291°
Eccentric anomaly
219.33593°
Mean motion
3.25176 °/min
Orbital period
110.71 mins
BSTAR
0.000003874
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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. |
|---|---|---|---|---|---|---|---|
| 4 mins | 2026-04-11 21:04:13.967Z | 67.023° ENE | 2026-04-11 21:06:13.967Z | 51.306° ENE | 11.975° | 2026-04-11 21:08:13.967Z | 35.29° NE |
| 14 mins | 2026-04-11 22:47:13.967Z | 144.974° SSE | 2026-04-11 22:54:13.967Z | 58.98° ENE | 41.135° | 2026-04-11 23:01:13.967Z | 352.394° N |
| 11 mins | 2026-04-12 00:38:13.967Z | 217.914° SW | 2026-04-12 00:43:13.967Z | 264.831° W | 24.962° | 2026-04-12 00:49:13.967Z | 319.413° NNW |
| 11 mins | 2026-04-12 12:14:13.967Z | 19.86° NNE | 2026-04-12 12:19:13.967Z | 112.032° ESE | 44.231° | 2026-04-12 12:25:13.967Z | 190.226° SSW |
| 7 mins | 2026-04-12 14:04:13.967Z | 336.312° NNW | 2026-04-12 14:07:13.967Z | 306.281° NW | 17.465° | 2026-04-12 14:11:13.967Z | 266.027° W |
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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