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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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: 7 hours ago
TLE from 7 hours ago
0 FENGYUN 1C
1 25730U 99025A 26072.93520632 .00002011 00000-0 85001-3 0 9990
2 25730 98.8692 145.2083 0012269 158.1182 202.0524 14.26670248384370Epoch: 2026-03-13T22:26Z
TLE epoch observation values (Epoch: 2026-03-13T22:26:41.826Z)
Latitude
0.00001°
Longitude
-3.02958°
Altitude
813.97 km
Speed
7.442 km/s
True Right ascension
09h 40m 49s
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
09:45:20
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
808.847 km
Perigee altitude
791.233 km
Semi-major axis
7,178.177 km
Eccentricity
0.00123
Inclination
98.8692°
RAAN
145.2083°
Arg. of periapsis
158.1182°
True anomaly
201.99969°
Mean anomaly
202.0524°
Eccentric anomaly
202.02604°
Mean motion
3.5688 °/min
Orbital period
100.87 mins
BSTAR
0.00085001
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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 | 2026-03-14 05:18:26.320Z | 201.582° SSW | 2026-03-14 05:21:26.320Z | 256.03° W | 33.262° | 2026-03-14 05:26:26.320Z | 330.844° NNW |
| 8 mins | 2026-03-14 17:33:26.320Z | 19.88° NNE | 2026-03-14 17:36:26.320Z | 62.845° ENE | 43.573° | 2026-03-14 17:41:26.320Z | 188.748° SSW |
| 4 mins | 2026-03-15 03:15:26.320Z | 76.339° E | 2026-03-15 03:16:26.320Z | 63.682° ENE | 14.358° | 2026-03-15 03:19:26.320Z | 28.269° NE |
| 8 mins | 2026-03-15 04:52:26.320Z | 175.885° S | 2026-03-15 04:55:26.320Z | 227.363° WSW | 43.289° | 2026-03-15 05:00:26.320Z | 341.407° N |
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 descending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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