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: 8 hours ago
TLE from 8 hours ago
0 YAOGAN-39 04C
1 58145U 23163E 25333.88118692 .00005398 00000-0 26797-3 0 9996
2 58145 34.9900 171.1682 0005510 326.5394 33.4970 15.17054159117035Epoch: 2025-11-29T21:08Z
TLE epoch observation values (Epoch: 2025-11-29T21:08:54.549Z)
Latitude
-0.00004°
Longitude
144.93783°
Altitude
510.492 km
Speed
7.613 km/s
True Right ascension
11h 24m 40s
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
02:56:29
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
521.792 km
Perigee altitude
514.193 km
Semi-major axis
6,896.13 km
Eccentricity
0.00055
Inclination
34.99°
RAAN
171.1682°
Arg. of periapsis
326.5394°
True anomaly
33.53187°
Mean anomaly
33.497°
Eccentric anomaly
33.51443°
Mean motion
3.78996 °/min
Orbital period
94.99 mins
BSTAR
0.00026797
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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 | 2025-11-30 17:58:36.413Z | 210.932° SW | 2025-11-30 18:00:36.413Z | 158.641° S | 26.906° | 2025-11-30 18:03:36.413Z | 106.405° ESE |
| 6 mins | 2025-11-30 19:37:36.413Z | 244.812° WSW | 2025-11-30 19:40:36.413Z | 166.396° S | 31.728° | 2025-11-30 19:43:36.413Z | 114.846° SE |
| 4 mins | 2025-11-30 21:18:36.413Z | 229.476° WSW | 2025-11-30 21:19:36.413Z | 208.04° SW | 21.869° | 2025-11-30 21:22:36.413Z | 149.254° 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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