IUS R/B(2), 21641
Orbit data source: Space-Track
IUS R/B(2), 21641 is space debris in GEO originally from a launch on Fri, 02 Aug 1991 UTC launched from the Air Force Eastern Test Range (AFETR). 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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21641 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
USRelated business
Manufacturer
UTC CSD
Mission
Spacecraft
Bus & Motor
ORBUS 6, Unknown motor
Mass
~1,100 kg wet, ~1,100 kg dry
Launch date (UTC)
Launch vehicle
Unknown
Launch site
Object type
Shape & HBR
Cyl, 1.4 m
Radar Cross Section
8.086 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 1 day ago
TLE from 1 day ago
0 IUS R/B(2)
1 21641U 91054D 25348.53702831 -.00000086 00000-0 00000-0 0 9999
2 21641 13.9566 334.4614 0036508 340.6981 210.8517 1.00390081 45515Epoch: 2025-12-14T12:53Z
TLE epoch observation values (Epoch: 2025-12-14T12:53:19.245Z)
Latitude
-2.72794°
Longitude
-111.31163°
Altitude
35,885 km
Speed
3.066 km/s
True Right ascension
11h 01m 52s
True Declination
-2° 43' 31"
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
13:23:52
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
35,908.262 km
Perigee altitude
35,600.627 km
Semi-major axis
42,132.582 km
Eccentricity
0.00365
Inclination
13.9566°
RAAN
334.4614°
Arg. of periapsis
340.6981°
True anomaly
210.638°
Mean anomaly
210.8517°
Eccentric anomaly
210.74477°
Mean motion
0.25097 °/min
Orbital period
1,434.45 mins
BSTAR
0
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Other satellites on launch #54 in the year 1991 (1991-08-02 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.IUS R/B(2) 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. |
|---|---|---|---|---|---|---|---|
| 1440 mins | 2025-12-15 14:46:18.467Z | 188.354° SSW | 2025-12-16 06:00:18.467Z | 189.936° SSW | 40.703° | 2025-12-16 14:46:18.467Z | 187.786° SSW |
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21641 neighbors
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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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Click to sort rows by Secondary header in ascending order | Click to sort rows by Secondary name header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Owner header in ascending order | Click to sort rows by Obj. Type header in ascending order | Click to sort rows by Miss dist. header in ascending order | Click to sort rows by Rel. speed header in ascending order | Click to sort rows by Apr. angle header in ascending order | Click to sort rows by TCA header in descending order |
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