FENGYUN 1C DEB, 29735
Orbit data source: Space-Track
FENGYUN 1C DEB, 29735 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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29735 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: 11 hours ago
TLE from 11 hours ago
0 FENGYUN 1C DEB
1 29735U 99025Z 25312.75416981 .00001346 00000-0 23485-2 0 9993
2 29735 99.3878 233.3749 0701772 250.9792 101.4045 12.74987220869821Epoch: 2025-11-08T18:06Z
TLE epoch observation values (Epoch: 2025-11-08T18:06:00.271Z)
Latitude
-0.0001°
Longitude
-86.30546°
Altitude
1,507.584 km
Speed
7.045 km/s
True Right ascension
15h 33m 29s
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
01:43:36
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,902.033 km
Perigee altitude
816.084 km
Semi-major axis
7,737.196 km
Eccentricity
0.07018
Inclination
99.3878°
RAAN
233.3749°
Arg. of periapsis
250.9792°
True anomaly
109.12953°
Mean anomaly
101.4045°
Eccentric anomaly
105.28316°
Mean motion
3.1891 °/min
Orbital period
112.88 mins
BSTAR
0.0023485
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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. |
|---|---|---|---|---|---|---|---|
| 12 mins | 2025-11-09 06:06:29.898Z | 39.702° NE | 2025-11-09 06:12:29.898Z | 81.43° E | 21.06° | 2025-11-09 06:18:29.898Z | 132.194° SE |
| 15 mins | 2025-11-09 07:57:29.898Z | 10.983° NNE | 2025-11-09 08:05:29.898Z | 274.428° WNW | 44.309° | 2025-11-09 08:12:29.898Z | 204.251° SW |
| 10 mins | 2025-11-09 09:49:29.898Z | 345.828° N | 2025-11-09 09:54:29.898Z | 311.955° NW | 18.668° | 2025-11-09 09:59:29.898Z | 274.051° WNW |
| 14 mins | 2025-11-09 16:52:29.898Z | 100.166° ESE | 2025-11-09 16:59:29.898Z | 51.319° ENE | 24.27° | 2025-11-09 17:06:29.898Z | 6.937° NNE |
| 19 mins | 2025-11-09 18:40:29.898Z | 162.912° S | 2025-11-09 18:48:29.898Z | 163.393° S | 44.915° | 2025-11-09 18:59:29.898Z | 345.998° N |
| 13 mins | 2025-11-09 20:35:29.898Z | 233.767° WSW | 2025-11-09 20:41:29.898Z | 276.484° WNW | 21.112° | 2025-11-09 20:48:29.898Z | 319.686° 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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