DELTA 1 DEB, 21570
Orbit data source: Space-Track
DELTA 1 DEB, 21570 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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21570 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
Medium (>0.1 m² and <1 m²)
Expand to show TLE details & historyLast TLE update: 22 hours ago
TLE from 22 hours ago
0 DELTA 1 DEB
1 21570U 75052HQ 26241.71970126 .00001042 00000-0 57274-2 0 9996
2 21570 99.5351 43.8070 0690619 299.8010 68.3624 12.09621060356966Epoch: 2026-08-29T17:16Z
TLE epoch observation values (Epoch: 2026-08-29T17:16:22.188Z)
Latitude
15.49635°
Longitude
164.1328°
Altitude
1,470.093 km
Speed
7.204 km/s
True Right ascension
02h 44m 36s
True Declination
15° 24' 58"
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
06:44:41
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
2,188.976 km
Perigee altitude
1,082.097 km
Semi-major axis
8,013.674 km
Eccentricity
0.06906
Inclination
99.5351°
RAAN
43.807°
Arg. of periapsis
299.801°
True anomaly
75.93797°
Mean anomaly
68.3624°
Eccentric anomaly
72.12842°
Mean motion
3.02549 °/min
Orbital period
118.99 mins
BSTAR
0.0057274
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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 | 2026-08-30 21:40:51.649Z | 40.344° NE | 2026-08-30 21:48:51.649Z | 84.057° E | 20.464° | 2026-08-30 21:56:51.649Z | 130.367° SE |
| 21 mins | 2026-08-30 23:36:51.649Z | 15.89° NNE | 2026-08-30 23:47:51.649Z | 143.102° SSE | 44.775° | 2026-08-30 23:57:51.649Z | 193.888° SSW |
| 17 mins | 2026-08-31 01:34:51.649Z | 354.736° N | 2026-08-31 01:42:51.649Z | 306.384° NW | 27.311° | 2026-08-31 01:51:51.649Z | 252.195° W |
| 14 mins | 2026-08-31 09:03:51.649Z | 99.474° ESE | 2026-08-31 09:09:51.649Z | 51.133° ENE | 25.956° | 2026-08-31 09:17:51.649Z | 1.949° NNE |
| 18 mins | 2026-08-31 10:57:51.649Z | 172.177° S | 2026-08-31 11:05:51.649Z | 284.548° WNW | 44.017° | 2026-08-31 11:15:51.649Z | 343.323° N |
| 7 mins | 2026-08-31 13:01:51.649Z | 261.329° W | 2026-08-31 13:04:51.649Z | 282.082° WNW | 14.437° | 2026-08-31 13:08:51.649Z | 306.777° NW |
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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