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: 20 hours ago
TLE from 20 hours ago
0 FENGYUN 1C
1 25730U 99025A 25347.16463831 .00004151 00000-0 17551-2 0 9997
2 25730 98.8840 53.2026 0010660 67.1932 293.0372 14.26055382371435Epoch: 2025-12-13T03:57Z
TLE epoch observation values (Epoch: 2025-12-13T03:57:04.749Z)
Latitude
-0.00002°
Longitude
-88.16302°
Altitude
804.873 km
Speed
7.453 km/s
True Right ascension
03h 32m 48s
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
22:38:22
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
809.76 km
Perigee altitude
794.451 km
Semi-major axis
7,180.242 km
Eccentricity
0.00107
Inclination
98.884°
RAAN
53.2026°
Arg. of periapsis
67.1932°
True anomaly
292.92473°
Mean anomaly
293.0372°
Eccentric anomaly
292.98097°
Mean motion
3.56726 °/min
Orbital period
100.92 mins
BSTAR
0.0017551
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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
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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. |
|---|---|---|---|---|---|---|---|
| 8 mins | 2025-12-14 03:40:08.659Z | 121.395° SE | 2025-12-14 03:44:08.659Z | 58.716° ENE | 26.826° | 2025-12-14 03:48:08.659Z | 7.757° NNE |
| 7 mins | 2025-12-14 05:20:08.659Z | 210.001° SW | 2025-12-14 05:23:08.659Z | 256.733° W | 27.542° | 2025-12-14 05:27:08.659Z | 319.646° NNW |
| 8 mins | 2025-12-14 17:35:08.659Z | 11.554° NNE | 2025-12-14 17:39:08.659Z | 227.669° WSW | 44.401° | 2025-12-14 17:43:08.659Z | 198.355° SSW |
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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