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: 12 hours ago
TLE from 12 hours ago
0 YAOGAN-39 04C
1 58145U 23163E 26251.24711473 .00003367 00000-0 17009-3 0 9992
2 58145 34.9898 211.0697 0001887 228.1776 131.8775 15.16600925159944Epoch: 2026-09-08T05:55Z
TLE epoch observation values (Epoch: 2026-09-08T05:55:50.712Z)
Latitude
-0.00005°
Longitude
134.79206°
Altitude
515.9 km
Speed
7.607 km/s
True Right ascension
14h 04m 16s
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
09:37:21
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
520.667 km
Perigee altitude
518.064 km
Semi-major axis
6,897.502 km
Eccentricity
0.00019
Inclination
34.9898°
RAAN
211.0697°
Arg. of periapsis
228.1776°
True anomaly
131.8936°
Mean anomaly
131.8775°
Eccentric anomaly
131.88555°
Mean motion
3.78883 °/min
Orbital period
95.02 mins
BSTAR
0.00017009
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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 | 2026-09-09 01:07:40.101Z | 200.718° SSW | 2026-09-09 01:09:40.101Z | 166.365° S | 20.103° | 2026-09-09 01:12:40.101Z | 113.779° SE |
| 5 mins | 2026-09-09 02:47:40.101Z | 229.864° WSW | 2026-09-09 02:49:40.101Z | 179.151° S | 38.167° | 2026-09-09 02:52:40.101Z | 110.555° ESE |
| 5 mins | 2026-09-09 04:27:40.101Z | 241.858° WSW | 2026-09-09 04:29:40.101Z | 191.629° SSW | 35.359° | 2026-09-09 04:32:40.101Z | 127.542° 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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