FENGYUN 1C DEB, 29946
Orbit data source: Space-Track
FENGYUN 1C DEB, 29946 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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29946 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, 0.2 m
Radar Cross Section
Small (<0.1 m²)
Expand to show TLE details & historyLast TLE update: 21 hours ago
TLE from 21 hours ago
0 FENGYUN 1C DEB
1 29946U 99025JU 25345.24403229 .00000598 00000-0 36462-3 0 9996
2 29946 98.7799 337.5244 0080730 347.7027 24.5649 14.08252352970263Epoch: 2025-12-11T05:51Z
TLE epoch observation values (Epoch: 2025-12-11T05:51:24.389Z)
Latitude
12.4657°
Longitude
167.52372°
Altitude
814.386 km
Speed
7.474 km/s
True Right ascension
22h 22m 18s
True Declination
12° 23' 38"
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
01:24:46
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
920.99 km
Perigee altitude
804.082 km
Semi-major axis
7,240.673 km
Eccentricity
0.00807
Inclination
98.7799°
RAAN
337.5244°
Arg. of periapsis
347.7027°
True anomaly
24.95304°
Mean anomaly
24.5649°
Eccentric anomaly
24.75861°
Mean motion
3.52269 °/min
Orbital period
102.19 mins
BSTAR
0.00036462
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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. |
|---|---|---|---|---|---|---|---|
| 7 mins | 2025-12-12 11:23:57.435Z | 51.201° ENE | 2025-12-12 11:26:57.435Z | 87.162° E | 20.66° | 2025-12-12 11:30:57.435Z | 136.767° SSE |
| 9 mins | 2025-12-12 13:04:57.435Z | 355.936° N | 2025-12-12 13:08:57.435Z | 276.005° WNW | 37.902° | 2025-12-12 13:13:57.435Z | 215.54° SW |
| 8 mins | 2025-12-12 22:51:57.435Z | 124.87° SE | 2025-12-12 22:54:57.435Z | 79.746° E | 30.201° | 2025-12-12 22:59:57.435Z | 5.213° NNE |
| 7 mins | 2025-12-13 00:33:57.435Z | 223.945° SW | 2025-12-13 00:36:57.435Z | 274.066° WNW | 24.668° | 2025-12-13 00:40:57.435Z | 322.15° 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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