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YAOGAN-39 01C, 57731

Orbit data source: Space-Track

YAOGAN-39 01C, 57731 is a payload satellite owned by PLA GAD (CN) in LEO that was launched on Thu, 31 Aug 2023 UTC via a CHANG ZHENG 2D launch vehicle from the Xichang Space Center, China (XSC). Payload-class satellites include a variety of spacecraft equipped with specific instruments for various scientific and technological missions. These include communications satellites like Starlink; space stations such as the ISS; scientific satellites like the Hubble; Earth observation satellites from companies like Planet Labs, Umbra, and HawkEye 360; GPS; miniature CubeSats for education and research; and military/defense satellites.

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Identifier
57731, 2023-130E
Orbit
LEO
Last TLE update
3 hours ago
Origin
Manufacturer
DFH
Mission
Operational Defense Sigint
Bus & Motor
Unknown
Mass
~300 kg wet, ~300 kg dry
Launch date (UTC)
2023-08-31 (2 years ago)
Launch vehicle
CHANG ZHENG 2D
Launch site
Xichang Space Center, China (XSC)
Object type
Payload
Rocket body
Debris
Shape & HBR
Box + 2 Pan, 5 m
Radar Cross Section
11.063 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 3 hours ago
0 YAOGAN-39 01C
1 57731U 23130E   25186.88341745  .00004212  00000-0  21089-3 0  9996
2 57731  34.9928 150.9724 0002492 182.1311 177.9392 15.16837480102837
Epoch: 2025-07-05T21:12Z
TLE epoch observation values (Epoch: 2025-07-05T21:12:07.267Z)
Latitude
0.00002°
Longitude
-91.17292°
Altitude
516.031 km
Speed
7.607 km/s
True Right ascension
10h 03m 53s
True Declination
0° 00' 00"
Sunlit
Object was in daylight at epoch
Visualization orbit readout
Latitude
-6.68462°
Longitude
-101.56437°
Altitude
517.081 km
Speed
7.606 km/s
Apparent Right ascension
06h 19m 42s
Apparent Declination
-46° 04' 38"
Sunlit
Object is in daylight
Visualization observer readout
Local Sidereal Time
12:15:06
Azimuth
231.013° WSW
Elevation
-26.84°
Doppler factor
1
Orbital elements
Apogee altitude
520.367 km
Perigee altitude
516.93 km
Semi-major axis
6,896.785 km
Eccentricity
0.00025
Inclination
34.9928°
RAAN
150.9724°
Arg. of periapsis
182.1311°
True anomaly
Unknown
Mean anomaly
177.9392°
Eccentric anomaly
Unknown
Mean motion
3.78942 °/min
Orbital period
95 mins
BSTAR
0.00021089
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Other satellites on launch #130 in the year 2023 (2023-08-31 UTC)

YAOGAN-39 01C Visibility forecast

Observer location: undefined°, undefined°

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.
6 mins2025-07-06 02:11:36.692Z220.769° SW2025-07-06 02:14:36.692Z169.241° S23.98°2025-07-06 02:17:36.692Z110.84° ESE
5 mins2025-07-06 03:52:36.692Z235.734° WSW2025-07-06 03:54:36.692Z181.234° SSW32.666°2025-07-06 03:57:36.692Z113.913° SE
5 mins2025-07-06 05:32:36.692Z238.812° WSW2025-07-06 05:34:36.692Z192.164° SSW25.445°2025-07-06 05:37:36.692Z136.947° SSE
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