FENGYUN 1C DEB, 31742
Orbit data source: Space-Track
FENGYUN 1C DEB, 31742 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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31742 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: 1 day ago
TLE from 1 day ago
0 FENGYUN 1C DEB
1 31742U 99025CER 26206.87107742 .00001610 00000-0 50270-3 0 9999
2 31742 98.8953 80.8072 0076303 23.1526 337.3070 14.40596345998903Epoch: 2026-07-25T20:54Z
TLE epoch observation values (Epoch: 2026-07-25T20:54:21.089Z)
Latitude
0.00005°
Longitude
-176.35782°
Altitude
709.293 km
Speed
7.527 km/s
True Right ascension
05h 23m 13s
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
16:16:06
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
808.087 km
Perigee altitude
699.251 km
Semi-major axis
7,131.806 km
Eccentricity
0.00763
Inclination
98.8953°
RAAN
80.8072°
Arg. of periapsis
23.1526°
True anomaly
336.96668°
Mean anomaly
337.307°
Eccentric anomaly
337.13714°
Mean motion
3.60366 °/min
Orbital period
99.9 mins
BSTAR
0.0005027
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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 | 2026-07-27 03:30:20.109Z | 49.87° ENE | 2026-07-27 03:33:20.109Z | 89.297° E | 19.985° | 2026-07-27 03:37:20.109Z | 142.005° SSE |
| 8 mins | 2026-07-27 05:09:20.109Z | 352.076° N | 2026-07-27 05:12:20.109Z | 296.932° NW | 34.782° | 2026-07-27 05:17:20.109Z | 219.372° SW |
| 6 mins | 2026-07-27 14:44:20.109Z | 108.413° ESE | 2026-07-27 14:46:20.109Z | 74.083° E | 23.981° | 2026-07-27 14:50:20.109Z | 12.511° NNE |
| 7 mins | 2026-07-27 16:22:20.109Z | 209.911° SW | 2026-07-27 16:25:20.109Z | 262.762° W | 26.837° | 2026-07-27 16:29:20.109Z | 323.406° 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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