OBJECT D, 63985
Orbit data source: Space-Track
OBJECT D, 63985 is a Chinese satellite in SSO that was launched on Wed, 14 May 2025 UTC via a CHANG ZHENG 2D launch vehicle from the Jiuquan Satellite Launch Center, China (JSC). 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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63985 intel report (Beta)
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Identifier
Orbit
Country
CN / PRCRelated business
None
Manufacturer
Unknown
Mission
Operational Commercial Technology
Bus & Motor
Unknown
Mass
Unknown
Launch date (UTC)
Launch vehicle
Launch site
Object type
Unknown
Shape & HBR
Box + 2 Pan, 0.9 m
Radar Cross Section
0.135 m², Medium (>0.1 m² and < 1m²)
Expand to show TLE details & historyLast TLE update: 7 hours ago
TLE from 7 hours ago
0 OBJECT D
1 63985U 25100D 26130.17902781 .00016175 00000-0 55476-3 0 9996
2 63985 97.3668 206.3199 0010461 67.0111 293.2233 15.30195377 55016Epoch: 2026-05-10T04:17Z
TLE epoch observation values (Epoch: 2026-05-10T04:17:48.002Z)
Latitude
0.00003°
Longitude
-86.11594°
Altitude
475.513 km
Speed
7.63 km/s
True Right ascension
13h 45m 16s
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
19:53:44
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
479.346 km
Perigee altitude
465.013 km
Semi-major axis
6,850.316 km
Eccentricity
0.00105
Inclination
97.3668°
RAAN
206.3199°
Arg. of periapsis
67.0111°
True anomaly
293.11308°
Mean anomaly
293.2233°
Eccentric anomaly
293.1682°
Mean motion
3.82805 °/min
Orbital period
94.04 mins
BSTAR
0.00055476
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Other satellites on launch #100 in the year 2025 (2025-05-14 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 D 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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2026-05-10 17:25:03.198Z | 35.432° NE | 2026-05-10 17:28:03.198Z | 105.544° ESE | 27.799° | 2026-05-10 17:30:03.198Z | 153.612° SSE |
| 4 mins | 2026-05-11 05:33:03.198Z | 208.624° SW | 2026-05-11 05:35:03.198Z | 276.9° WNW | 30.608° | 2026-05-11 05:37:03.198Z | 323.859° NNW |
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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