OBJECT S, 51840

Orbit data source: Space-Track

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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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<iframe src="https://www.satcat.com/sats-embedded/51840?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

Iframe URL

https://www.satcat.com/sats-embedded/51840?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

51840, 2022-019S

Orbit

SSO

Country

CN / PRC

Related business

Chang Guang Satellite Technology Co., Ltd. (CN)

Manufacturer

Changguang WJ

Mission

Operational Commercial Imaging

Bus & Motor

JL-1, Unknown motor

Mass

43 kg wet, 43 kg dry

Launch date (UTC)

2022-02-27 (4 years ago)

Launch vehicle

CHANG ZHENG 8

Launch site

Wenchang Satellite Launch Center (WSC)

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 & history
Last TLE update: 19 hours ago

TLE from 19 hours ago

0 OBJECT S
1 51840U 22019S   25348.96576339  .00047448  00000-0  62626-3 0  9994
2 51840  97.3824  73.0882 0000841 349.3343  10.7895 15.58251166211221

Epoch: 2025-12-14T23:10Z

TLE epoch observation values (Epoch: 2025-12-14T23:10:41.956Z)

Latitude

-0.00004°

Longitude

1.54228°

Altitude

395.302 km

Speed

7.673 km/s

True Right ascension

04h 52m 21s

True Declination

0° 00' 00"

Sunlit

Object was in full shadow at epoch

Visualization orbit readout

Latitude

Unknown

Longitude

Unknown

Altitude

Unknown

Speed

Unknown

Apparent Right ascension

Unknown

Apparent Declination

Unknown

Sunlit

N/A

Visualization observer readout

Local Sidereal Time

17:10:08

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

390.202 km

Perigee altitude

389.063 km

Semi-major axis

6,767.769 km

Eccentricity

0.00008

Inclination

97.3824°

RAAN

73.0882°

Arg. of periapsis

349.3343°

True anomaly

10.7913°

Mean anomaly

10.7895°

Eccentric anomaly

10.7904°

Mean motion

3.8983 °/min

Orbital period

92.35 mins

BSTAR

0.00062626

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Other satellites on launch #19 in the year 2022 (2022-02-27 UTC)

OBJECT U, 51842 (Decayed)

OBJECT V, 51843

OBJECT X, 51845 (Decayed)

OBJECT Q, 51838 (Decayed)

OBJECT P, 51837 (Decayed)

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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.
5 mins	2025-12-16 06:07:56.792Z	190.158° SSW	2025-12-16 06:09:56.792Z	241.659° WSW	34.108°	2025-12-16 06:12:56.792Z	333.714° NNW

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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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Check out OBJECT S, 51840 on other resources

View OBJECT S, 51840 on Heavens-Above

View OBJECT S, 51840 on Keep Track

View OBJECT S, 51840 on Celestrak

View OBJECT S, 51840 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.

OBJECT S, 51840

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 19 hours ago

TLE from 19 hours ago

TLE epoch observation values (Epoch: 2025-12-14T23:10:41.956Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #19 in the year 2022 (2022-02-27 UTC)

OBJECT S Visibility forecast

Co-orbital & Co-planar RSOs

Check out OBJECT S, 51840 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 19 hours ago