THORAD AGENA D DEB, 21721
Orbit data source: Space-Track
THORAD AGENA D DEB, 21721 is space debris in SSO originally from a launch on Wed, 08 Apr 1970 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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21721 intel report (Beta)
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Edit Public Description
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 THORAD AGENA D DEB
1 21721U 70025QG 25299.79858964 .00001521 00000-0 17679-2 0 9991
2 21721 100.0922 234.4803 0003405 120.7765 267.7598 13.70659609692224Epoch: 2025-10-26T19:09Z
TLE epoch observation values (Epoch: 2025-10-26T19:09:58.144Z)
Latitude
28.06029°
Longitude
-93.83755°
Altitude
1,000.651 km
Speed
7.354 km/s
True Right ascension
15h 16m 15s
True Declination
27° 55' 21"
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
23:38:09
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
997.009 km
Perigee altitude
991.988 km
Semi-major axis
7,372.635 km
Eccentricity
0.00034
Inclination
100.0922°
RAAN
234.4803°
Arg. of periapsis
120.7765°
True anomaly
267.72081°
Mean anomaly
267.7598°
Eccentric anomaly
267.74031°
Mean motion
3.42854 °/min
Orbital period
105 mins
BSTAR
0.0017679
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Other satellites on launch #25 in the year 1970 (1970-04-08 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.THORAD AGENA D 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. |
|---|---|---|---|---|---|---|---|
| 10 mins | 2025-10-27 07:53:29.630Z | 35.103° NE | 2025-10-27 07:58:29.630Z | 93.427° ESE | 29.694° | 2025-10-27 08:03:29.630Z | 158.559° S |
| 9 mins | 2025-10-27 09:38:29.630Z | 348.878° N | 2025-10-27 09:42:29.630Z | 288.761° WNW | 30.819° | 2025-10-27 09:47:29.630Z | 231.387° WSW |
| 5 mins | 2025-10-27 18:00:29.630Z | 76.771° E | 2025-10-27 18:02:29.630Z | 54.949° ENE | 15.254° | 2025-10-27 18:05:29.630Z | 24.577° NE |
| 10 mins | 2025-10-27 19:40:29.630Z | 164.887° S | 2025-10-27 19:45:29.630Z | 328.39° NNW | 44.445° | 2025-10-27 19:50:29.630Z | 343.826° N |
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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