OBJECT H, 51831

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 H, 51831 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/51831?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/51831?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

51831, 2022-019H

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: 20 hours ago

TLE from 20 hours ago

0 OBJECT H
1 51831U 22019H   25348.95771675  .00050097  00000-0  64175-3 0  9998
2 51831  97.3829  72.9158 0006453  73.9090 286.2876 15.59013375211200

Epoch: 2025-12-14T22:59Z

TLE epoch observation values (Epoch: 2025-12-14T22:59:06.727Z)

Latitude

-0.00004°

Longitude

4.2746°

Altitude

392.432 km

Speed

7.675 km/s

True Right ascension

04h 51m 39s

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

17:09:20

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

391.79 km

Perigee altitude

383.058 km

Semi-major axis

6,765.561 km

Eccentricity

0.00065

Inclination

97.3829°

RAAN

72.9158°

Arg. of periapsis

73.909°

True anomaly

286.21661°

Mean anomaly

286.2876°

Eccentric anomaly

286.2521°

Mean motion

3.9002 °/min

Orbital period

92.3 mins

BSTAR

0.00064175

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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 S, 51840

OBJECT X, 51845 (Decayed)

OBJECT Q, 51838 (Decayed)

OBJECT P, 51837 (Decayed)

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OBJECT H Visibility forecast

Loading observer location...
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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	2025-12-16 05:56:09.295Z	177.532° S	2025-12-16 05:58:09.295Z	308.209° NW	41.663°	2025-12-16 06:00:09.295Z	342.213° N

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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 H, 51831 on other resources

View OBJECT H, 51831 on Heavens-Above

View OBJECT H, 51831 on Keep Track

View OBJECT H, 51831 on Celestrak

View OBJECT H, 51831 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 H, 51831

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 20 hours ago

TLE from 20 hours ago

TLE epoch observation values (Epoch: 2025-12-14T22:59:06.727Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

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

OBJECT H Visibility forecast

Co-orbital & Co-planar RSOs

Check out OBJECT H, 51831 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 20 hours ago