OPS 4682 DEB, 55121
Orbit data source: Space-Track
OPS 4682 DEB, 55121 is space debris in LEO originally from a launch on Sat, 03 Apr 1965 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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55121 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: 4 days ago
TLE from 4 days ago
0 OPS 4682 DEB
1 55121U 65027HL 26250.56575769 .00000355 00000-0 11278-2 0 9993
2 55121 90.2471 8.4930 0039201 112.5634 247.9644 13.01332041464334Epoch: 2026-09-07T13:34Z
TLE epoch observation values (Epoch: 2026-09-07T13:34:41.464Z)
Latitude
-0.00005°
Longitude
178.17554°
Altitude
1,271.09 km
Speed
7.215 km/s
True Right ascension
00h 33m 58s
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
15:42:18
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,283.916 km
Perigee altitude
1,224.078 km
Semi-major axis
7,632.134 km
Eccentricity
0.00392
Inclination
90.2471°
RAAN
8.493°
Arg. of periapsis
112.5634°
True anomaly
247.54877°
Mean anomaly
247.9644°
Eccentric anomaly
247.75651°
Mean motion
3.25517 °/min
Orbital period
110.59 mins
BSTAR
0.0011278
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Other satellites on launch #27 in the year 1965 (1965-04-03 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.OPS 4682 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. |
|---|---|---|---|---|---|---|---|
| 8 mins | 2026-09-12 06:17:49.733Z | 103.945° ESE | 2026-09-12 06:21:49.733Z | 70.961° E | 16.43° | 2026-09-12 06:25:49.733Z | 36.534° NE |
| 13 mins | 2026-09-12 08:05:49.733Z | 177.578° S | 2026-09-12 08:11:49.733Z | 334.411° NNW | 81.473° | 2026-09-12 08:18:49.733Z | 356.952° N |
| 5 mins | 2026-09-12 10:00:49.733Z | 267.873° W | 2026-09-12 10:02:49.733Z | 285.151° WNW | 14.169° | 2026-09-12 10:05:49.733Z | 310.418° NW |
| 13 mins | 2026-09-12 19:40:49.733Z | 11.711° NNE | 2026-09-12 19:46:49.733Z | 107.033° ESE | 64.276° | 2026-09-12 19:53:49.733Z | 171.814° S |
| 9 mins | 2026-09-12 21:31:49.733Z | 329.002° NNW | 2026-09-12 21:35:49.733Z | 291.671° WNW | 22.647° | 2026-09-12 21:40:49.733Z | 244.827° WSW |
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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