DELTA 1 DEB, 21351
Orbit data source: Space-Track
DELTA 1 DEB, 21351 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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21351 intel report (Beta)
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Expand to show TLE details & historyLast TLE update: 8 hours ago
TLE from 8 hours ago
0 DELTA 1 DEB
1 21351U 75052BV 26124.83029448 .00000003 00000-0 91911-4 0 9992
2 21351 99.8407 251.0621 0066028 62.4428 68.5527 13.31644324698430Epoch: 2026-05-04T19:55Z
TLE epoch observation values (Epoch: 2026-05-04T19:55:37.443Z)
Latitude
47.45519°
Longitude
-79.71947°
Altitude
1,129.945 km
Speed
7.301 km/s
True Right ascension
05h 27m 36s
True Declination
47° 17' 32"
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
11:21:34
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,187.527 km
Perigee altitude
1,088.274 km
Semi-major axis
7,516.037 km
Eccentricity
0.0066
Inclination
99.8407°
RAAN
251.0621°
Arg. of periapsis
62.4428°
True anomaly
69.25905°
Mean anomaly
68.5527°
Eccentric anomaly
68.90566°
Mean motion
3.33089 °/min
Orbital period
108.08 mins
BSTAR
0.000091911
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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 | 2026-05-05 06:18:57.392Z | 69.535° E | 2026-05-05 06:20:57.392Z | 50.923° ENE | 12.185° | 2026-05-05 06:22:57.392Z | 32.728° NE |
| 11 mins | 2026-05-05 08:00:57.392Z | 152.627° SSE | 2026-05-05 08:05:57.392Z | 83.87° E | 43.528° | 2026-05-05 08:11:57.392Z | 350.108° N |
| 7 mins | 2026-05-05 09:49:57.392Z | 235.038° WSW | 2026-05-05 09:52:57.392Z | 265.065° W | 17.218° | 2026-05-05 09:56:57.392Z | 305.088° NW |
| 11 mins | 2026-05-05 21:07:57.392Z | 21.978° NNE | 2026-05-05 21:12:57.392Z | 114.918° SE | 43.62° | 2026-05-05 21:18:57.392Z | 187.609° SSW |
| 7 mins | 2026-05-05 22:55:57.392Z | 331.125° NNW | 2026-05-05 22:58:57.392Z | 297.995° NW | 19.782° | 2026-05-05 23:02:57.392Z | 259.318° 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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