THOR AGENA D R/B, 2255
Orbit data source: Space-Track
THOR AGENA D R/B, 2255 is space debris in LEO originally from a launch on Fri, 24 Jun 1966 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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2255 intel report (Beta)
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Identifier
Orbit
Country
USRelated business
Manufacturer
LMSC
Mission
Spacecraft
Bus & Motor
AGENA D, Unknown motor
Mass
600 kg wet, 600 kg dry
Launch date (UTC)
Launch vehicle
Unknown
Launch site
Object type
Shape & HBR
Unknown
Radar Cross Section
Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 1 day ago
TLE from 1 day ago
0 THOR AGENA D R/B
1 02255U 66056B 26135.11283849 -.00000005 00000-0 -67431-2 0 9990
2 02255 86.9768 181.9768 0047249 127.3740 233.1383 7.94756323737691Epoch: 2026-05-15T02:42Z
TLE epoch observation values (Epoch: 2026-05-15T02:42:29.245Z)
Latitude
0.00003°
Longitude
-91.49388°
Altitude
4,260.817 km
Speed
6.113 km/s
True Right ascension
12h 07m 54s
True Declination
0° 00' 00"
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
16:30:19
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
4,276.59 km
Perigee altitude
4,176.378 km
Semi-major axis
10,604.621 km
Eccentricity
0.00472
Inclination
86.9768°
RAAN
181.9768°
Arg. of periapsis
127.374°
True anomaly
232.70664°
Mean anomaly
233.1383°
Eccentric anomaly
232.92232°
Mean motion
1.98747 °/min
Orbital period
181.13 mins
BSTAR
-0.0067431
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Other satellites on launch #56 in the year 1966 (1966-06-24 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.THOR AGENA D R/B 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. |
|---|---|---|---|---|---|---|---|
| 38 mins | 2026-05-16 12:44:36.101Z | 3.036° NNE | 2026-05-16 13:03:36.101Z | 66.496° ENE | 29.948° | 2026-05-16 13:22:36.101Z | 130.463° SE |
| 40 mins | 2026-05-16 15:47:36.101Z | 354.257° N | 2026-05-16 16:07:36.101Z | 272.964° WNW | 42.755° | 2026-05-16 16:27:36.101Z | 201.629° SSW |
| 15 mins | 2026-05-16 18:53:36.101Z | 334.469° NNW | 2026-05-16 19:00:36.101Z | 313.596° NW | 13.525° | 2026-05-16 19:08:36.101Z | 289.788° WNW |
| 24 mins | 2026-05-17 00:15:36.101Z | 89.393° E | 2026-05-17 00:27:36.101Z | 52.438° ENE | 18.89° | 2026-05-17 00:39:36.101Z | 16.432° NNE |
| 41 mins | 2026-05-17 03:02:36.101Z | 169.866° S | 2026-05-17 03:22:36.101Z | 83.914° E | 44.745° | 2026-05-17 03:43:36.101Z | 3.668° NNE |
| 33 mins | 2026-05-17 06:11:36.101Z | 247.113° WSW | 2026-05-17 06:27:36.101Z | 298.539° NW | 24.313° | 2026-05-17 06:44:36.101Z | 353.539° N |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
Click to sort rows by RSO header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Type header in ascending order | Click to sort rows by Inclination Δ header in ascending order | Click to sort rows by RAAN Δ header in ascending order | Click to sort rows by Coplanar Angle header in ascending order | Click to sort rows by SMA Δ header in ascending order | Click to sort rows by Orbital period header in ascending order | Click to sort rows by <5km Md TCA header in descending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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