FENGYUN 1C DEB, 31817
Orbit data source: Space-Track
FENGYUN 1C DEB, 31817 is space debris in SSO originally from a launch on Mon, 10 May 1999 UTC launched from the Taiyaun Space Center, China (TSC). Fengyun 1C debris stems from the Chinese weather satellite Fengyun-1C, which was intentionally destroyed by a Chinese anti-satellite missile in 2007. This event dramatically increased the amount of space debris, with thousands of trackable fragments posing hazards to satellites and human spaceflight. The Fengyun 1C debris cloud has become a focal point in discussions about space sustainability and the need for international regulations to prevent the creation of new debris.
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31817 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
CN / PRCRelated business
Manufacturer
Unknown
Mission
Spacecraft
Bus & Motor
Unknown
Mass
Unknown
Launch date (UTC)
Launch vehicle
Unknown
Launch site
Object type
Shape & HBR
Unknown shape, 0.1 m
Radar Cross Section
Small (<0.1 m²)
Expand to show TLE details & historyLast TLE update: 1 week ago
TLE from 1 week ago
0 FENGYUN 1C DEB
1 31817U 99025CHF 25351.21574950 .00005707 00000-0 10276-2 0 9991
2 31817 98.9191 347.9563 0062733 62.1287 298.6249 14.65734447714718Epoch: 2025-12-17T05:10Z
TLE epoch observation values (Epoch: 2025-12-17T05:10:40.756Z)
Latitude
-0.00013°
Longitude
-175.8023°
Altitude
656.702 km
Speed
7.54 km/s
True Right ascension
23h 11m 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
07:37:31
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
716.053 km
Perigee altitude
627.6 km
Semi-major axis
7,049.963 km
Eccentricity
0.00627
Inclination
98.9191°
RAAN
347.9563°
Arg. of periapsis
62.1287°
True anomaly
297.99153°
Mean anomaly
298.6249°
Eccentric anomaly
298.30845°
Mean motion
3.66659 °/min
Orbital period
98.18 mins
BSTAR
0.0010276
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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 DEB 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 | 2025-12-27 13:07:42.517Z | 8.045° NNE | 2025-12-27 13:10:42.517Z | 333.074° NNW | 42.347° | 2025-12-27 13:15:42.517Z | 202.321° SSW |
| 6 mins | 2025-12-28 00:09:42.517Z | 177.534° S | 2025-12-28 00:12:42.517Z | 290.066° WNW | 42.367° | 2025-12-28 00:15:42.517Z | 339.003° 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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Click to sort rows by Secondary header in ascending order | Click to sort rows by Secondary name header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Owner header in ascending order | Click to sort rows by Obj. Type header in ascending order | Click to sort rows by Miss dist. header in ascending order | Click to sort rows by Rel. speed header in ascending order | Click to sort rows by Apr. angle header in ascending order | Click to sort rows by TCA header in descending order |
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