YAOGAN-39 04A, 58141
Orbit data source: Space-Track
YAOGAN-39 04A, 58141 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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58141 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: 9 hours ago
TLE from 9 hours ago
0 YAOGAN-39 04A
1 58141U 23163A 25301.64174228 .00017007 00000-0 70923-3 0 9998
2 58141 35.0017 0.8969 0005627 91.4648 268.6712 15.22828349112258Epoch: 2025-10-28T15:24Z
TLE epoch observation values (Epoch: 2025-10-28T15:24:06.532Z)
Latitude
0.00004°
Longitude
92.64343°
Altitude
496.313 km
Speed
7.619 km/s
True Right ascension
00h 03m 35s
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
19:56:21
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
504.435 km
Perigee altitude
496.693 km
Semi-major axis
6,878.701 km
Eccentricity
0.00056
Inclination
35.0017°
RAAN
0.8969°
Arg. of periapsis
91.4648°
True anomaly
268.60674°
Mean anomaly
268.6712°
Eccentric anomaly
268.63897°
Mean motion
3.80438 °/min
Orbital period
94.63 mins
BSTAR
0.00070923
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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 04A 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 | 2025-10-29 09:00:26.309Z | 221.128° SW | 2025-10-29 09:02:26.309Z | 173.761° S | 27.844° | 2025-10-29 09:05:26.309Z | 109.592° ESE |
| 5 mins | 2025-10-29 10:40:26.309Z | 233.58° WSW | 2025-10-29 10:42:26.309Z | 169.119° S | 30.61° | 2025-10-29 10:45:26.309Z | 117.155° SE |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
Click to sort rows by RSO header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Type header in ascending order | Click to sort rows by Inclination Δ header in ascending order | Click to sort rows by RAAN Δ header in ascending order | Click to sort rows by Coplanar Angle header in ascending order | Click to sort rows by SMA Δ header in ascending order | Click to sort rows by Orbital period header in ascending order | Click to sort rows by <5km Md TCA header in ascending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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