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: 6 hours ago
TLE from 6 hours ago
0 FENGYUN 1C
1 25730U 99025A 26036.74424788 .00005036 00000-0 21076-2 0 9995
2 25730 98.8755 108.5290 0010545 262.3338 97.6644 14.26474798379218Epoch: 2026-02-05T17:51Z
TLE epoch observation values (Epoch: 2026-02-05T17:51:43.016Z)
Latitude
-0.00005°
Longitude
64.70769°
Altitude
807.474 km
Speed
7.449 km/s
True Right ascension
07h 14m 06s
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
02:14:54
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
808.266 km
Perigee altitude
793.126 km
Semi-major axis
7,178.833 km
Eccentricity
0.00105
Inclination
98.8755°
RAAN
108.529°
Arg. of periapsis
262.3338°
True anomaly
97.78414°
Mean anomaly
97.6644°
Eccentric anomaly
97.72427°
Mean motion
3.56831 °/min
Orbital period
100.89 mins
BSTAR
0.0021076
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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. |
|---|---|---|---|---|---|---|---|
| 9 mins | 2026-02-06 04:04:46.195Z | 141.603° SSE | 2026-02-06 04:09:46.195Z | 63.946° ENE | 35.839° | 2026-02-06 04:13:46.195Z | 1.805° NNE |
| 6 mins | 2026-02-06 05:46:46.195Z | 228.443° WSW | 2026-02-06 05:49:46.195Z | 270.473° WNW | 19.706° | 2026-02-06 05:52:46.195Z | 309.129° NW |
| 5 mins | 2026-02-06 16:22:46.195Z | 68.268° E | 2026-02-06 16:24:46.195Z | 95.456° ESE | 16.825° | 2026-02-06 16:27:46.195Z | 131.794° SE |
| 8 mins | 2026-02-06 18:00:46.195Z | 0.401° NNE | 2026-02-06 18:04:46.195Z | 280.15° WNW | 39.244° | 2026-02-06 18:08:46.195Z | 214.794° SW |
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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