FENGYUN 1C DEB, 29777
Orbit data source: Space-Track
FENGYUN 1C DEB, 29777 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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29777 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: 18 hours ago
TLE from 18 hours ago
0 FENGYUN 1C DEB
1 29777U 99025BT 26256.14248104 -.00000016 00000-0 21691-4 0 9993
2 29777 99.2467 317.7962 0092914 187.3971 229.0726 13.92192327998594Epoch: 2026-09-13T03:25Z
TLE epoch observation values (Epoch: 2026-09-13T03:25:10.361Z)
Latitude
54.69464°
Longitude
-98.8585°
Altitude
974.725 km
Speed
7.347 km/s
True Right ascension
20h 18m 18s
True Declination
54° 32' 13"
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
13:35:30
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
985.973 km
Perigee altitude
850.387 km
Semi-major axis
7,296.317 km
Eccentricity
0.00929
Inclination
99.2467°
RAAN
317.7962°
Arg. of periapsis
187.3971°
True anomaly
228.27427°
Mean anomaly
229.0726°
Eccentric anomaly
228.67283°
Mean motion
3.48247 °/min
Orbital period
103.37 mins
BSTAR
0.000021691
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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 | 2026-09-14 03:25:31.335Z | 133.469° SE | 2026-09-14 03:30:31.335Z | 63.66° ENE | 42.676° | 2026-09-14 03:35:31.335Z | 1.367° NNE |
| 9 mins | 2026-09-14 05:08:31.335Z | 213.196° SW | 2026-09-14 05:12:31.335Z | 264.981° W | 29.559° | 2026-09-14 05:17:31.335Z | 322.546° NNW |
| 6 mins | 2026-09-14 16:00:31.335Z | 58.209° ENE | 2026-09-14 16:03:31.335Z | 98.935° ESE | 21.443° | 2026-09-14 16:06:31.335Z | 136.133° SSE |
| 9 mins | 2026-09-14 17:41:31.335Z | 357.785° N | 2026-09-14 17:45:31.335Z | 290.21° WNW | 48.916° | 2026-09-14 17:50:31.335Z | 218.172° SW |
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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