DECAYED

OBJECT K, 55257 (Decayed)

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 K, 55257 was a Chinese satellite in LEO that was launched on Sun, 15 Jan 2023 UTC via a CHANG ZHENG 2D launch vehicle from the Taiyaun Space Center, China (TSC). 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. This object's orbit decayed before it could be identified.

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<iframe src="https://www.satcat.com/sats-embedded/55257?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/55257?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

55257, 2023-007K

Orbit

Decayed

Country

CN / PRC

Related business

None

Manufacturer

Unknown

Mission

Decayed Amateur Technology

Bus & Motor

Unknown

Mass

Unknown

Launch date (UTC)

2023-01-15 (3 years ago)

Launch vehicle

CHANG ZHENG 2D

Launch site

Taiyaun Space Center, China (TSC)

Object type

Unknown

Shape & HBR

Box + 2 Pan, 1.0 m

Radar Cross Section

0.338 m², Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history
Last TLE update: 11 months ago

TLE from 11 months ago

0 OBJECT K
1 55257U 23007K   25024.10624539  .13106639  24332-5  11531-2 0  9990
2 55257  97.2855 114.7341 0008652 285.3809 163.2877 16.39214062114092

Epoch: 2025-01-24T02:32Z

TLE epoch observation values (Epoch: 2025-01-24T02:32:59.601Z)

Latitude

82.64123°

Longitude

-127.00756°

Altitude

186.882 km

Speed

7.798 km/s

True Right ascension

02h 19m 39s

True Declination

82° 35' 37"

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

13:23:48

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

170.358 km

Perigee altitude

159.037 km

Semi-major axis

6,542.835 km

Eccentricity

0.00087

Inclination

97.2855°

RAAN

114.7341°

Arg. of periapsis

285.3809°

True anomaly

163.31618°

Mean anomaly

163.2877°

Eccentric anomaly

163.30194°

Mean motion

4.10104 °/min

Orbital period

87.78 mins

BSTAR

0.0011531

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Other satellites on launch #7 in the year 2023 (2023-01-15 UTC)

OBJECT L, 55258 (Decayed)

OBJECT G, 55254 (Decayed)

OBJECT B, 55249 (Decayed)

OBJECT M, 55259 (Decayed)

OBJECT A, 55248 (Decayed)

OBJECT C, 55250 (Decayed)

OBJECT N, 55260 (Decayed)

OBJECT P, 55261 (Decayed)

OBJECT E, 55252 (Decayed)

OBJECT F, 55253 (Decayed)

OBJECT H, 55255 (Decayed)

OBJECT J, 55256 (Decayed)

OBJECT D, 55251 (Decayed)

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OBJECT K 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.
This satellite is decayed.

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 K, 55257 (Decayed) on other resources

View OBJECT K, 55257 (Decayed) on Celestrak

View OBJECT K, 55257 (Decayed) 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 K, 55257 (Decayed)

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 11 months ago

TLE from 11 months ago

TLE epoch observation values (Epoch: 2025-01-24T02:32:59.601Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #7 in the year 2023 (2023-01-15 UTC)

OBJECT K Visibility

Co-orbital & Co-planar RSOs

Check out OBJECT K, 55257 (Decayed) on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 11 months ago