OBJECT XK, 65731
Orbit data source: Space-Track
You're viewing an Uncataloged Satellite
Recently launched and/or uncataloged satellites may have evolving metadata. Metadata may include but not limited to: Owner, Maufacturer, Bus, Motor, and Mission.
OBJECT XK, 65731 is a Japanese satellite in LEO that was delivered to and deployed from the ISS. Unknown objects in Earth's orbit typically refer to objects detected orbiting the Earth but have not yet been identified or cataloged. These objects could be anything from previously untracked satellites, spent rocket stages, debris from satellite collisions, or even natural meteoroids temporarily captured by Earth's gravity.
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65731 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
JP / JPNRelated business
None
Manufacturer
Unknown
Mission
Operational spacecraft
Bus & Motor
Unknown
Mass
Unknown
Launch date (UTC)
Launch vehicle
Launch site
Object type
Unknown
Shape & HBR
Unknown shape, 0.1 m
Radar Cross Section
RCS unknown
Expand to show TLE details & historyLast TLE update: 1 day ago
TLE from 1 day ago
0 OBJECT XK
1 65731U 98067XK 25348.39346434 .00110677 00000-0 10467-2 0 9992
2 65731 51.6278 128.8403 0004899 257.8165 102.2282 15.66124170 13401Epoch: 2025-12-14T09:26Z
TLE epoch observation values (Epoch: 2025-12-14T09:26:35.318Z)
Latitude
-0.00005°
Longitude
-96.11392°
Altitude
371.455 km
Speed
7.688 km/s
True Right ascension
08h 35m 21s
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
13:22:54
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
373.827 km
Perigee altitude
367.215 km
Semi-major axis
6,748.658 km
Eccentricity
0.00049
Inclination
51.6278°
RAAN
128.8403°
Arg. of periapsis
257.8165°
True anomaly
102.28306°
Mean anomaly
102.2282°
Eccentric anomaly
102.25563°
Mean motion
3.91487 °/min
Orbital period
91.96 mins
BSTAR
0.0010467
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Other satellites on launch #67 in the year 1998 (1998-11-20 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.OBJECT XK 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. |
|---|---|---|---|---|---|---|---|
| 4 mins | 2025-12-16 12:11:19.882Z | 250.78° W | 2025-12-16 12:13:19.882Z | 2.847° NNE | 39.004° | 2025-12-16 12:15:19.882Z | 44.177° NE |
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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