OBJECT S, 51840
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 S, 51840 is a satellite owned by Changguang WJ (CN) in SSO that was launched on Sun, 27 Feb 2022 UTC via a CHANG ZHENG 8 launch vehicle from the Wenchang Satellite Launch Center (WSC). 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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51840 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
CN / PRCRelated business
Manufacturer
Changguang WJ
Mission
Operational Commercial Imaging
Bus & Motor
JL-1, Unknown motor
Mass
43 kg wet, 43 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Unknown
Shape & HBR
Box + 2 Pan, 0.8 m
Radar Cross Section
2.000 m², Medium (>0.1 m² and < 1m²)
Expand to show TLE details & historyLast TLE update: 12 hours ago
TLE from 12 hours ago
0 OBJECT S
1 51840U 22019S 25286.61910593 .00054115 00000-0 97666-3 0 9992
2 51840 97.3869 8.8756 0001231 189.8970 170.2257 15.49572825201549Epoch: 2025-10-13T14:51Z
TLE epoch observation values (Epoch: 2025-10-13T14:51:30.752Z)
Latitude
-0.00003°
Longitude
123.57818°
Altitude
421.93 km
Speed
7.658 km/s
True Right ascension
00h 35m 30s
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
21:24:31
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
415.737 km
Perigee altitude
414.064 km
Semi-major axis
6,793.037 km
Eccentricity
0.00012
Inclination
97.3869°
RAAN
8.8756°
Arg. of periapsis
189.897°
True anomaly
170.22809°
Mean anomaly
170.2257°
Eccentric anomaly
170.2269°
Mean motion
3.87657 °/min
Orbital period
92.87 mins
BSTAR
0.00097666
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Other satellites on launch #19 in the year 2022 (2022-02-27 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 S 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 | 2025-10-14 04:57:20.913Z | 115.748° SE | 2025-10-14 04:59:20.913Z | 71.011° E | 19.606° | 2025-10-14 05:01:20.913Z | 26.037° NE |
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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