YAOGAN-42 02, 59557
Orbit data source: Space-Track
YAOGAN-42 02, 59557 is a payload satellite owned by PLA GAD (CN) in LEO that was launched on Sat, 20 Apr 2024 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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59557 intel report (Beta)
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Identifier
Orbit
Country
CN / PRCRelated business
Manufacturer
SAST
Mission
Operational Defense Imaging
Bus & Motor
Unknown
Mass
~1,500 kg wet, ~1,500 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: 22 hours ago
TLE from 22 hours ago
0 YAOGAN-42 02
1 59557U 24075A 26172.49952326 .00006345 00000-0 26532-3 0 9996
2 59557 34.9993 242.4718 0005725 212.8148 147.2212 15.22907101120744Epoch: 2026-06-21T11:59Z
TLE epoch observation values (Epoch: 2026-06-21T11:59:18.809Z)
Latitude
0°
Longitude
152.94452°
Altitude
499.293 km
Speed
7.615 km/s
True Right ascension
16h 09m 53s
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
21:29:57
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
504.265 km
Perigee altitude
496.389 km
Semi-major axis
6,878.464 km
Eccentricity
0.00057
Inclination
34.9993°
RAAN
242.4718°
Arg. of periapsis
212.8148°
True anomaly
147.2567°
Mean anomaly
147.2212°
Eccentric anomaly
147.23895°
Mean motion
3.80457 °/min
Orbital period
94.62 mins
BSTAR
0.00026532
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Other satellites on launch #75 in the year 2024 (2024-04-20 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-42 02 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. |
|---|---|---|---|---|---|---|---|
| 6 mins | 2026-06-22 11:59:57.003Z | 251.454° W | 2026-06-22 12:02:57.003Z | 191.848° SSW | 26.99° | 2026-06-22 12:05:57.003Z | 132.561° SE |
| 4 mins | 2026-06-23 08:18:57.003Z | 193.179° SSW | 2026-06-23 08:19:57.003Z | 170.84° S | 21.793° | 2026-06-23 08:22:57.003Z | 112.533° SE |
| 5 mins | 2026-06-23 09:57:57.003Z | 229.588° WSW | 2026-06-23 09:59:57.003Z | 166.967° S | 31.741° | 2026-06-23 10:02:57.003Z | 110.363° ESE |
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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