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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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: 2 days ago
TLE from 2 days ago
0 THORAD AGENA D DEB
1 21721U 70025QG 26131.35777575 .00000716 00000-0 85382-3 0 9999
2 21721 100.1110 80.9628 0005942 17.6857 133.9254 13.71190436719151Epoch: 2026-05-11T08:35Z
TLE epoch observation values (Epoch: 2026-05-11T08:35:11.824Z)
Latitude
27.90363°
Longitude
-91.59361°
Altitude
1,001.666 km
Speed
7.352 km/s
True Right ascension
17h 45m 24s
True Declination
27° 45' 59"
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
15:27:12
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
996.975 km
Perigee altitude
988.216 km
Semi-major axis
7,370.732 km
Eccentricity
0.00059
Inclination
100.111°
RAAN
80.9628°
Arg. of periapsis
17.6857°
True anomaly
133.97442°
Mean anomaly
133.9254°
Eccentric anomaly
133.94991°
Mean motion
3.42987 °/min
Orbital period
104.96 mins
BSTAR
0.00085382
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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. |
|---|---|---|---|---|---|---|---|
| 11 mins | 2026-05-13 09:28:27.458Z | 18.926° NNE | 2026-05-13 09:33:27.458Z | 73.46° E | 44.137° | 2026-05-13 09:39:27.458Z | 191.159° SSW |
| 5 mins | 2026-05-13 11:14:27.458Z | 325.756° NNW | 2026-05-13 11:16:27.458Z | 303.063° NW | 17.002° | 2026-05-13 11:19:27.458Z | 270.49° WNW |
| 9 mins | 2026-05-13 19:32:27.458Z | 117.138° SE | 2026-05-13 19:36:27.458Z | 63.45° ENE | 28.443° | 2026-05-13 19:41:27.458Z | 5.001° NNE |
| 10 mins | 2026-05-13 21:15:27.458Z | 199.61° SSW | 2026-05-13 21:19:27.458Z | 253.693° W | 32.267° | 2026-05-13 21:25:27.458Z | 329.006° NNW |
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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