FENGYUN 1C DEB, 33681
Orbit data source: Space-Track
FENGYUN 1C DEB, 33681 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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33681 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: 4 months ago
TLE from 4 months ago
0 FENGYUN 1C DEB
1 33681U 99025DFS 25179.69661058 .00000826 00000-0 55307-3 0 9990
2 33681 99.0575 236.7941 0101270 139.6576 349.4128 14.01198282631533Epoch: 2025-06-28T16:43Z
TLE epoch observation values (Epoch: 2025-06-28T16:43:07.154Z)
Latitude
50.36757°
Longitude
-99.97945°
Altitude
825.301 km
Speed
7.482 km/s
True Right ascension
04h 31m 19s
True Declination
50° 12' 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
07:43:18
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
960.421 km
Perigee altitude
813.276 km
Semi-major axis
7,264.986 km
Eccentricity
0.01013
Inclination
99.0575°
RAAN
236.7941°
Arg. of periapsis
139.6576°
True anomaly
349.1969°
Mean anomaly
349.4128°
Eccentric anomaly
349.30512°
Mean motion
3.50502 °/min
Orbital period
102.71 mins
BSTAR
0.00055307
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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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2025-11-09 15:29:12.143Z | 65.597° ENE | 2025-11-09 15:31:12.143Z | 90.553° ESE | 15.184° | 2025-11-09 15:34:12.143Z | 126.413° SE |
| 9 mins | 2025-11-09 17:09:12.143Z | 3.257° NNE | 2025-11-09 17:13:12.143Z | 285.923° WNW | 40.951° | 2025-11-09 17:18:12.143Z | 209.621° SW |
| 8 mins | 2025-11-10 02:59:12.143Z | 125.441° SE | 2025-11-10 03:03:12.143Z | 69.534° E | 29.637° | 2025-11-10 03:07:12.143Z | 10.196° NNE |
| 8 mins | 2025-11-10 04:41:12.143Z | 211.081° SW | 2025-11-10 04:44:12.143Z | 252.964° W | 27.508° | 2025-11-10 04:49:12.143Z | 322.756° NNW |
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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