YAOGAN-39 05A, 58557
Orbit data source: Space-Track
YAOGAN-39 05A, 58557 is a payload satellite owned by PLA GAD (CN) in LEO that was launched on Sun, 10 Dec 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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58557 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: 1 day ago
TLE from 1 day ago
0 YAOGAN-39 05A
1 58557U 23194A 26172.29397992 .00007450 00000-0 31078-3 0 9995
2 58557 35.0023 31.5463 0006381 341.9195 18.1292 15.22951954140985Epoch: 2026-06-21T07:03Z
TLE epoch observation values (Epoch: 2026-06-21T07:03:19.865Z)
Latitude
-0.00001°
Longitude
16.2172°
Altitude
491.682 km
Speed
7.624 km/s
True Right ascension
02h 06m 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
21:29:02
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
504.581 km
Perigee altitude
495.803 km
Semi-major axis
6,878.329 km
Eccentricity
0.00064
Inclination
35.0023°
RAAN
31.5463°
Arg. of periapsis
341.9195°
True anomaly
18.15197°
Mean anomaly
18.1292°
Eccentric anomaly
18.14058°
Mean motion
3.80469 °/min
Orbital period
94.62 mins
BSTAR
0.00031078
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Other satellites on launch #194 in the year 2023 (2023-12-10 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 05A 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 | 2026-06-22 17:54:01.513Z | 196.828° SSW | 2026-06-22 17:56:01.513Z | 162.778° S | 16.854° | 2026-06-22 17:58:01.513Z | 125.605° SE |
| 5 mins | 2026-06-22 19:34:01.513Z | 218.683° SW | 2026-06-22 19:36:01.513Z | 156.112° SSE | 29.368° | 2026-06-22 19:39:01.513Z | 106.239° ESE |
| 5 mins | 2026-06-22 21:13:01.513Z | 241.166° WSW | 2026-06-22 21:15:01.513Z | 189.547° SSW | 29.874° | 2026-06-22 21:18:01.513Z | 125.299° 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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