FENGYUN 1C DEB, 31634
Orbit data source: Space-Track
FENGYUN 1C DEB, 31634 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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31634 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: 3 days ago
TLE from 3 days ago
0 FENGYUN 1C DEB
1 31634U 99025CAQ 25306.88922961 .00000351 00000-0 28769-3 0 9997
2 31634 99.3724 352.7955 0090584 265.6940 93.3865 13.94616770559688Epoch: 2025-11-02T21:20Z
TLE epoch observation values (Epoch: 2025-11-02T21:20:29.438Z)
Latitude
-0.00005°
Longitude
-9.72563°
Altitude
919.852 km
Speed
7.39 km/s
True Right ascension
23h 31m 10s
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
09:40:15
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
975.737 km
Perigee altitude
843.705 km
Semi-major axis
7,287.858 km
Eccentricity
0.00906
Inclination
99.3724°
RAAN
352.7955°
Arg. of periapsis
265.694°
True anomaly
94.42195°
Mean anomaly
93.3865°
Eccentric anomaly
93.9043°
Mean motion
3.48854 °/min
Orbital period
103.2 mins
BSTAR
0.00028769
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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. |
|---|---|---|---|---|---|---|---|
| 10 mins | 2025-11-05 15:22:33.726Z | 34.654° NE | 2025-11-05 15:27:33.726Z | 103.306° ESE | 31.033° | 2025-11-05 15:32:33.726Z | 163.71° S |
| 8 mins | 2025-11-05 17:05:33.726Z | 345.047° N | 2025-11-05 17:08:33.726Z | 304.478° NW | 28.263° | 2025-11-05 17:13:33.726Z | 236.732° WSW |
| 10 mins | 2025-11-06 02:56:33.726Z | 156.554° SSE | 2025-11-06 03:01:33.726Z | 46.28° ENE | 44.033° | 2025-11-06 03:06:33.726Z | 349.444° N |
| 5 mins | 2025-11-06 04:41:33.726Z | 245.617° WSW | 2025-11-06 04:43:33.726Z | 267.275° W | 14.827° | 2025-11-06 04:46:33.726Z | 298.98° NW |
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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