FENGYUN 1C DEB, 29771
Orbit data source: Space-Track
FENGYUN 1C DEB, 29771 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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29771 intel report (Beta)
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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
Medium (>0.1 m² and <1 m²)
Expand to show TLE details & historyLast TLE update: 9 hours ago
TLE from 9 hours ago
0 FENGYUN 1C DEB
1 29771U 99025BM 26255.20629521 .00091095 00000-0 47814-2 0 9998
2 29771 99.6111 166.0468 0011516 346.4078 13.6836 15.15265161372048Epoch: 2026-09-12T04:57Z
TLE epoch observation values (Epoch: 2026-09-12T04:57:03.906Z)
Latitude
0.00003°
Longitude
100.56189°
Altitude
515.466 km
Speed
7.61 km/s
True Right ascension
11h 04m 11s
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
06:41:37
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
525.194 km
Perigee altitude
509.313 km
Semi-major axis
6,895.391 km
Eccentricity
0.00115
Inclination
99.6111°
RAAN
166.0468°
Arg. of periapsis
346.4078°
True anomaly
13.71486°
Mean anomaly
13.6836°
Eccentric anomaly
13.69923°
Mean motion
3.79057 °/min
Orbital period
94.97 mins
BSTAR
0.0047814
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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. |
|---|---|---|---|---|---|---|---|
| 6 mins | 2026-09-12 17:45:41.531Z | 144.033° SSE | 2026-09-12 17:48:41.531Z | 71.38° E | 49.568° | 2026-09-12 17:51:41.531Z | 359.16° N |
| 7 mins | 2026-09-13 06:51:41.531Z | 24.987° NE | 2026-09-13 06:55:41.531Z | 119.264° SE | 50.624° | 2026-09-13 06:58:41.531Z | 178.05° S |
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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