FENGYUN 1C, 25730
Orbit data source: Space-Track
FENGYUN 1C, 25730 is a payload satellite owned by CNMSC (CN) in SSO that was launched on Mon, 10 May 1999 UTC via a CHANG ZHENG 4B launch vehicle from the Taiyaun Space Center, China (TSC). 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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25730 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
CN / PRCRelated business
Manufacturer
SISE
Mission
Non-operational Civil Imaging
Bus & Motor
FY-1, Unknown motor
Mass
958 kg wet, ~958 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 2 Pan, 4.3 m
Radar Cross Section
5.659 m², Medium (>0.1 m² and < 1m²)
Expand to show TLE details & historyLast TLE update: 22 hours ago
TLE from 22 hours ago
0 FENGYUN 1C
1 25730U 99025A 25341.06034285 .00004441 00000-0 18779-2 0 9992
2 25730 98.8845 47.0151 0010887 83.6541 276.5878 14.26005295370568Epoch: 2025-12-07T01:26Z
TLE epoch observation values (Epoch: 2025-12-07T01:26:53.622Z)
Latitude
0.00001°
Longitude
-50.78748°
Altitude
807.143 km
Speed
7.45 km/s
True Right ascension
03h 08m 03s
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
21:12:29
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
810.091 km
Perigee altitude
794.456 km
Semi-major axis
7,180.411 km
Eccentricity
0.00109
Inclination
98.8845°
RAAN
47.0151°
Arg. of periapsis
83.6541°
True anomaly
276.46385°
Mean anomaly
276.5878°
Eccentric anomaly
276.52583°
Mean motion
3.56713 °/min
Orbital period
100.92 mins
BSTAR
0.0018779
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Other satellites on launch #25 in the year 1999 (1999-05-10 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.FENGYUN 1C Visibility forecast
Loading observer location...
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. |
|---|---|---|---|---|---|---|---|
| 8 mins | 2025-12-08 04:31:05.458Z | 165.304° S | 2025-12-08 04:35:05.458Z | 340.529° N | 44.655° | 2025-12-08 04:39:05.458Z | 345.924° N |
| 7 mins | 2025-12-08 16:47:05.458Z | 42.94° NE | 2025-12-08 16:50:05.458Z | 93.058° ESE | 29.606° | 2025-12-08 16:54:05.458Z | 157.339° SSE |
| 7 mins | 2025-12-08 18:27:05.458Z | 338.427° N | 2025-12-08 18:30:05.458Z | 289.357° WNW | 25.346° | 2025-12-08 18:34:05.458Z | 237.249° WSW |
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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