FENGYUN 1C DEB, 31779
Orbit data source: Space-Track
FENGYUN 1C DEB, 31779 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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31779 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
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 31779U 99025CGE 26093.08572943 .00001394 00000-0 33950-3 0 9990
2 31779 99.3048 28.0148 0211551 216.2593 142.4100 14.42022533986144Epoch: 2026-04-03T02:03Z
TLE epoch observation values (Epoch: 2026-04-03T02:03:27.022Z)
Latitude
-0.00002°
Longitude
165.7273°
Altitude
875.452 km
Speed
7.352 km/s
True Right ascension
01h 52m 03s
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
18:59:20
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
899.756 km
Perigee altitude
598.206 km
Semi-major axis
7,127.118 km
Eccentricity
0.02116
Inclination
99.3048°
RAAN
28.0148°
Arg. of periapsis
216.2593°
True anomaly
143.85825°
Mean anomaly
142.41°
Eccentric anomaly
143.13714°
Mean motion
3.60722 °/min
Orbital period
99.8 mins
BSTAR
0.0003395
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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 | 2026-04-03 18:50:17.038Z | 133.923° SE | 2026-04-03 18:55:17.038Z | 61.406° ENE | 33.336° | 2026-04-03 19:00:17.038Z | 0.484° NNE |
| 8 mins | 2026-04-03 20:30:17.038Z | 216.199° SW | 2026-04-03 20:33:17.038Z | 257.486° W | 25.681° | 2026-04-03 20:38:17.038Z | 321.198° NNW |
| 7 mins | 2026-04-04 08:38:17.038Z | 12.525° NNE | 2026-04-04 08:41:17.038Z | 352.029° N | 44.252° | 2026-04-04 08:45:17.038Z | 198.206° SSW |
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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