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.

Not visible in the next 10 days

Iframe embed code

<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: 6 hours ago

TLE from 6 hours ago

0 OBJECT S
1 51840U 22019S   26095.55242002  .00405274  63936-4  13092-2 0  9994
2 51840  97.3651 190.7454 0004690 237.1501 122.9321 15.90823196228735

Epoch: 2026-04-05T13:15Z

TLE epoch observation values (Epoch: 2026-04-05T13:15:29.089Z)

Latitude

-0.00006°

Longitude

158.018°

Altitude

304.869 km

Speed

7.724 km/s

True Right ascension

12h 42m 58s

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

01:09:55

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

299.979 km

Perigee altitude

293.718 km

Semi-major axis

6,674.985 km

Eccentricity

0.00047

Inclination

97.3651°

RAAN

190.7454°

Arg. of periapsis

237.1501°

True anomaly

122.97719°

Mean anomaly

122.9321°

Eccentric anomaly

122.95465°

Mean motion

3.97986 °/min

Orbital period

90.46 mins

BSTAR

0.0013092

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Computing Atmospheric mass density...

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

OBJECT A, 51824 (Decayed)

OBJECT B, 51825

OBJECT N, 51836 (Decayed)

OBJECT H, 51831

OBJECT T, 51841

OBJECT R, 51839

OBJECT F, 51829 (Decayed)

OBJECT W, 51844

OBJECT X, 51845 (Decayed)

OBJECT P, 51837 (Decayed)

OBJECT K, 51833 (Decayed)

OBJECT G, 51830 (Decayed)

OBJECT E, 51828

OBJECT D, 51827

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OBJECT S Visibility

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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.
OBJECT S is likely not visible in the next few days.

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: 6 hours ago

TLE from 6 hours ago

TLE epoch observation values (Epoch: 2026-04-05T13:15:29.089Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

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

OBJECT S Visibility

Co-orbital & Co-planar RSOs

Check out OBJECT S, 51840 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 6 hours ago