YAOGAN-39 04C, 58145
Orbit data source: Space-Track
YAOGAN-39 04C, 58145 is a payload satellite owned by PLA GAD (CN) in LEO that was launched on Mon, 23 Oct 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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58145 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
CN / PRCRelated business
Manufacturer
DFH
Mission
Operational Defense Sigint
Bus & Motor
Unknown
Mass
~300 kg wet, ~300 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 2 Pan, 2.5 m
Radar Cross Section
11.063 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 19 hours ago
TLE from 19 hours ago
0 YAOGAN-39 04C
1 58145U 23163E 25285.91285113 .00008852 00000-0 42581-3 0 9996
2 58145 34.9916 110.2104 0003293 55.7452 304.3572 15.18060594109745Epoch: 2025-10-12T21:54Z
TLE epoch observation values (Epoch: 2025-10-12T21:54:30.337Z)
Latitude
-0.00006°
Longitude
119.86074°
Altitude
509.331 km
Speed
7.612 km/s
True Right ascension
07h 20m 50s
True Declination
0° 00' 00"
Sunlit
Visualization orbit readout
Latitude
Unknown
Longitude
Unknown
Altitude
Unknown
Speed
Unknown
Apparent Right ascension
Unknown
Apparent Declination
Unknown
Sunlit
Visualization observer readout
Local Sidereal Time
11:41:41
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
517.217 km
Perigee altitude
512.677 km
Semi-major axis
6,893.084 km
Eccentricity
0.00033
Inclination
34.9916°
RAAN
110.2104°
Arg. of periapsis
55.7452°
True anomaly
304.32604°
Mean anomaly
304.3572°
Eccentric anomaly
304.34162°
Mean motion
3.79248 °/min
Orbital period
94.92 mins
BSTAR
0.00042581
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Other satellites on launch #163 in the year 2023 (2023-10-23 UTC)
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You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.YAOGAN-39 04C 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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2025-10-13 18:48:05.927Z | 241.564° WSW | 2025-10-13 18:50:05.927Z | 193.145° SSW | 31.884° | 2025-10-13 18:53:05.927Z | 119.826° SE |
| 5 mins | 2025-10-13 20:28:05.927Z | 238.494° WSW | 2025-10-13 20:30:05.927Z | 197.603° SSW | 21.544° | 2025-10-13 20:33:05.927Z | 145.704° SSE |
| 5 mins | 2025-10-14 16:49:05.927Z | 224.505° SW | 2025-10-14 16:51:05.927Z | 183.405° SSW | 27.806° | 2025-10-14 16:54:05.927Z | 112.472° ESE |
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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