OBJECT B, 65939
Orbit data source: Space-Track
OBJECT B, 65939 is a satellite owned by Shikong Daoyu (CN) in SSO that was launched on Sat, 11 Oct 2025 UTC via a YINLI-1 launch vehicle from the Yellow Sea Launch Area, China (YSLA). 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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65939 intel report (Beta)
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Identifier
Orbit
Country
CN / PRCRelated business
Manufacturer
GWCG
Mission
Operational Commercial Imaging
Bus & Motor
GSP50, Unknown motor
Mass
~50 kg wet, ~50 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Unknown
Shape & HBR
Box + 1 Pan, 1.5 m
Radar Cross Section
0.445 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 6 days ago
TLE from 6 days ago
0 OBJECT B
1 65939U 25226B 26153.18058167 .00004579 00000-0 29037-3 0 9991
2 65939 97.6415 231.8564 0013931 190.1465 169.9485 15.09344417 35310Epoch: 2026-06-02T04:20Z
TLE epoch observation values (Epoch: 2026-06-02T04:20:02.256Z)
Latitude
0.00003°
Longitude
-83.81025°
Altitude
550.761 km
Speed
7.581 km/s
True Right ascension
15h 27m 25s
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
12:23:26
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
544.823 km
Perigee altitude
525.561 km
Semi-major axis
6,913.329 km
Eccentricity
0.00139
Inclination
97.6415°
RAAN
231.8564°
Arg. of periapsis
190.1465°
True anomaly
169.97631°
Mean anomaly
169.9485°
Eccentric anomaly
169.96241°
Mean motion
3.77583 °/min
Orbital period
95.34 mins
BSTAR
0.00029037
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Other satellites on launch #226 in the year 2025 (2025-10-11 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 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. |
|---|---|---|---|---|---|---|---|
| 6 mins | 2026-06-08 05:14:57.553Z | 164.748° S | 2026-06-08 05:17:57.553Z | 92.982° ESE | 44.91° | 2026-06-08 05:20:57.553Z | 349.122° N |
| 5 mins | 2026-06-08 18:25:57.553Z | 351.18° N | 2026-06-08 18:27:57.553Z | 272.815° WNW | 38.814° | 2026-06-08 18:30:57.553Z | 210.024° SW |
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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