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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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: 22 hours ago
TLE from 22 hours ago
0 YAOGAN-39 04C
1 58145U 23163E 26172.53106818 .00004722 00000-0 22965-3 0 9990
2 58145 34.9917 341.5318 0006248 71.0632 289.0758 15.17807917147986Epoch: 2026-06-21T12:44Z
TLE epoch observation values (Epoch: 2026-06-21T12:44:44.290Z)
Latitude
-0.00001°
Longitude
-119.38276°
Altitude
509.971 km
Speed
7.612 km/s
True Right ascension
22h 46m 07s
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
21:38:03
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
520.018 km
Perigee altitude
511.404 km
Semi-major axis
6,893.848 km
Eccentricity
0.00062
Inclination
34.9917°
RAAN
341.5318°
Arg. of periapsis
71.0632°
True anomaly
289.00812°
Mean anomaly
289.0758°
Eccentric anomaly
289.04196°
Mean motion
3.79185 °/min
Orbital period
94.94 mins
BSTAR
0.00022965
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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 | 2026-06-22 15:53:01.501Z | 208.777° SW | 2026-06-22 15:55:01.501Z | 153.182° SSE | 26.624° | 2026-06-22 15:58:01.501Z | 105.063° ESE |
| 6 mins | 2026-06-22 17:32:01.501Z | 242.837° WSW | 2026-06-22 17:34:01.501Z | 197.656° SSW | 31.533° | 2026-06-22 17:38:01.501Z | 114.071° SE |
| 5 mins | 2026-06-22 19:12:01.501Z | 240.256° WSW | 2026-06-22 19:14:01.501Z | 200.743° SSW | 21.429° | 2026-06-22 19:17:01.501Z | 146.981° SSE |
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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