OBJECT C, 55135

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 C, 55135 is a satellite owned by Hangtian Tianmu (CN) in SSO that was launched on Mon, 09 Jan 2023 UTC via a GUSHENXING 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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<iframe src="https://www.satcat.com/sats-embedded/55135?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/55135?theme=dark&initialShowStats=false

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Identifier

55135, 2023-003C

Orbit

SSO

Country

CN / PRC

Related business

China Aerospace Science and Industry Corporation (CASIC) (CN)

Manufacturer

Hangtian Tianmu

Mission

Operational Commercial Weather

Bus & Motor

TIANMU, Unknown motor

Mass

50 kg wet, ~50 kg dry

Launch date (UTC)

2023-01-09 (3 years ago)

Launch vehicle

GUSHENXING 1

Launch site

Jiuquan Satellite Launch Center, China (JSC)

Object type

Unknown

Shape & HBR

Box, 0.8 m

Radar Cross Section

2.000 m², Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history
Last TLE update: 22 hours ago

TLE from 22 hours ago

0 OBJECT C
1 55135U 23003C   26172.52632979  .00019466  00000-0  28300-3 0  9990
2 55135  97.1519 249.0867 0004556 113.2942 246.8793 15.55801681192956

Epoch: 2026-06-21T12:37Z

TLE epoch observation values (Epoch: 2026-06-21T12:37:54.893Z)

Latitude

-0.00006°

Longitude

149.88265°

Altitude

404.183 km

Speed

7.667 km/s

True Right ascension

16h 36m 20s

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

21:31:15

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

399.817 km

Perigee altitude

393.644 km

Semi-major axis

6,774.868 km

Eccentricity

0.00046

Inclination

97.1519°

RAAN

249.0867°

Arg. of periapsis

113.2942°

True anomaly

246.8313°

Mean anomaly

246.8793°

Eccentric anomaly

246.8553°

Mean motion

3.89217 °/min

Orbital period

92.49 mins

BSTAR

0.000283

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Other satellites on launch #3 in the year 2023 (2023-01-09 UTC)

OBJECT D, 55136 (Decayed)

OBJECT E, 55137

OBJECT A, 55133 (Decayed)

OBJECT B, 55134 (Decayed)

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OBJECT C 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	2026-06-23 04:55:14.533Z	130.685° SE	2026-06-23 04:56:14.533Z	90.407° ESE	34.668°	2026-06-23 04:59:14.533Z	2.237° NNE

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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 C, 55135 on other resources

View OBJECT C, 55135 on Heavens-Above

View OBJECT C, 55135 on Keep Track

View OBJECT C, 55135 on Celestrak

View OBJECT C, 55135 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 C, 55135

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 22 hours ago

TLE from 22 hours ago

TLE epoch observation values (Epoch: 2026-06-21T12:37:54.893Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #3 in the year 2023 (2023-01-09 UTC)

OBJECT C Visibility forecast

Co-orbital & Co-planar RSOs

Check out OBJECT C, 55135 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 22 hours ago