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: 10 hours ago
TLE from 10 hours ago
0 YAOGAN-39 04C
1 58145U 23163E 25256.24657034 .00003974 00000-0 19537-3 0 9990
2 58145 34.9930 295.2984 0004283 176.7440 183.3301 15.17487841105234Epoch: 2025-09-13T05:55Z
TLE epoch observation values (Epoch: 2025-09-13T05:55:03.677Z)
Latitude
-0.00003°
Longitude
-145.94964°
Altitude
515.291 km
Speed
7.607 km/s
True Right ascension
19h 41m 11s
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
07:58:47
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
519.632 km
Perigee altitude
513.726 km
Semi-major axis
6,894.816 km
Eccentricity
0.00043
Inclination
34.993°
RAAN
295.2984°
Arg. of periapsis
176.744°
True anomaly
183.32725°
Mean anomaly
183.3301°
Eccentric anomaly
183.32868°
Mean motion
3.79105 °/min
Orbital period
94.96 mins
BSTAR
0.00019537
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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 | 2025-09-14 07:28:46.157Z | 223.066° SW | 2025-09-14 07:30:46.157Z | 178.608° S | 28.478° | 2025-09-14 07:33:46.157Z | 111.008° ESE |
| 5 mins | 2025-09-14 09:08:46.157Z | 241.126° WSW | 2025-09-14 09:10:46.157Z | 189.998° SSW | 31.716° | 2025-09-14 09:13:46.157Z | 121.181° SE |
| 4 mins | 2025-09-14 10:48:46.157Z | 236.541° WSW | 2025-09-14 10:50:46.157Z | 196.917° SSW | 19.972° | 2025-09-14 10:52:46.157Z | 159.399° S |
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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