OBJECT B, 66410
Orbit data source: Space-Track
OBJECT B, 66410 is a satellite owned by CASIC (CN) in SSO that was launched on Sun, 09 Nov 2025 UTC via a LIJIAN-1 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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66410 intel report (Beta)
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Identifier
Orbit
Country
CN / PRCRelated business
Manufacturer
CASIC
Mission
Operational Civil Imaging
Bus & Motor
CHUTIAN, Unknown motor
Mass
~150 kg wet, ~150 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Unknown
Shape & HBR
Box + 2 Pan, 1.1 m
Radar Cross Section
1.038 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 17 hours ago
TLE from 17 hours ago
0 OBJECT B
1 66410U 25256B 26171.18761324 .00000310 00000-0 91022-4 0 9998
2 66410 98.2531 237.4149 0013301 330.5333 29.5110 14.50198071 32330Epoch: 2026-06-20T04:30Z
TLE epoch observation values (Epoch: 2026-06-20T04:30:09.783Z)
Latitude
-0.0001°
Longitude
-98.53168°
Altitude
719.751 km
Speed
7.5 km/s
True Right ascension
15h 49m 39s
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
08:33:19
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
731.542 km
Perigee altitude
712.654 km
Semi-major axis
7,100.235 km
Eccentricity
0.00133
Inclination
98.2531°
RAAN
237.4149°
Arg. of periapsis
330.5333°
True anomaly
29.58619°
Mean anomaly
29.511°
Eccentric anomaly
29.54858°
Mean motion
3.62772 °/min
Orbital period
99.24 mins
BSTAR
0.000091022
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Other satellites on launch #256 in the year 2025 (2025-11-09 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. |
|---|---|---|---|---|---|---|---|
| 8 mins | 2026-06-21 03:48:21.343Z | 138.105° SSE | 2026-06-21 03:52:21.343Z | 83.581° E | 31.816° | 2026-06-21 03:56:21.343Z | 7.584° NNE |
| 5 mins | 2026-06-21 05:29:21.343Z | 237.733° WSW | 2026-06-21 05:31:21.343Z | 270.926° WNW | 19.848° | 2026-06-21 05:34:21.343Z | 312.192° NW |
| 7 mins | 2026-06-21 17:31:21.343Z | 5.128° NNE | 2026-06-21 17:34:21.343Z | 284.301° WNW | 43.594° | 2026-06-21 17:38:21.343Z | 203.104° SW |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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