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: 6 hours ago
TLE from 6 hours ago
0 YAOGAN-39 04C
1 58145U 23163E 26125.82283722 .00006440 00000-0 31613-3 0 9999
2 58145 34.9909 272.8700 0007124 11.2697 348.8174 15.17398485140882Epoch: 2026-05-05T19:44Z
TLE epoch observation values (Epoch: 2026-05-05T19:44:53.135Z)
Latitude
-0.00005°
Longitude
112.95638°
Altitude
507.8 km
Speed
7.615 km/s
True Right ascension
18h 11m 28s
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
10:01:33
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
521.862 km
Perigee altitude
512.038 km
Semi-major axis
6,895.087 km
Eccentricity
0.00071
Inclination
34.9909°
RAAN
272.87°
Arg. of periapsis
11.2697°
True anomaly
348.80155°
Mean anomaly
348.8174°
Eccentric anomaly
348.80948°
Mean motion
3.79082 °/min
Orbital period
94.97 mins
BSTAR
0.00031613
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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. |
|---|---|---|---|---|---|---|---|
| 4 mins | 2026-05-06 13:21:13.249Z | 192.335° SSW | 2026-05-06 13:23:13.249Z | 156.929° SSE | 17.023° | 2026-05-06 13:25:13.249Z | 122.067° SE |
| 5 mins | 2026-05-06 15:01:13.249Z | 219.765° SW | 2026-05-06 15:03:13.249Z | 159.705° S | 29.967° | 2026-05-06 15:06:13.249Z | 106.875° ESE |
| 6 mins | 2026-05-06 16:40:13.249Z | 246.598° WSW | 2026-05-06 16:43:13.249Z | 170.451° S | 29.633° | 2026-05-06 16:46:13.249Z | 121.406° SE |
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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