DELTA 1 DEB, 21599
Orbit data source: Space-Track
DELTA 1 DEB, 21599 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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21599 intel report (Beta)
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Expand to show TLE details & historyLast TLE update: 1 week ago
TLE from 1 week ago
0 DELTA 1 DEB
1 21599U 75052HT 26164.95876375 .00001336 00000-0 45841-2 0 9991
2 21599 99.8290 64.0527 0426061 163.5515 217.7611 12.73000809618903Epoch: 2026-06-13T23:00Z
TLE epoch observation values (Epoch: 2026-06-13T23:00:37.188Z)
Latitude
18.15802°
Longitude
173.38956°
Altitude
1,637.928 km
Speed
6.932 km/s
True Right ascension
04h 03m 14s
True Declination
18° 04' 03"
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
00:56:42
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,697.141 km
Perigee altitude
1,037.148 km
Semi-major axis
7,745.282 km
Eccentricity
0.04261
Inclination
99.829°
RAAN
64.0527°
Arg. of periapsis
163.5515°
True anomaly
214.89349°
Mean anomaly
217.7611°
Eccentric anomaly
216.31538°
Mean motion
3.1841 °/min
Orbital period
113.06 mins
BSTAR
0.0045841
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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. |
|---|---|---|---|---|---|---|---|
| 14 mins | 2026-06-22 16:24:07.692Z | 138.782° SSE | 2026-06-22 16:31:07.692Z | 63.066° ENE | 39.009° | 2026-06-22 16:38:07.692Z | 355.102° N |
| 13 mins | 2026-06-22 18:16:07.692Z | 207.788° SW | 2026-06-22 18:22:07.692Z | 260.076° W | 28.742° | 2026-06-22 18:29:07.692Z | 324.365° NNW |
| 11 mins | 2026-06-23 06:07:07.692Z | 16.926° NNE | 2026-06-23 06:12:07.692Z | 122.85° SE | 44.845° | 2026-06-23 06:18:07.692Z | 194.016° SSW |
| 4 mins | 2026-06-23 08:01:07.692Z | 320.428° NNW | 2026-06-23 08:02:07.692Z | 310.011° NW | 14.492° | 2026-06-23 08:05:07.692Z | 279.1° WNW |
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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