FENGYUN 1C DEB, 31237
Orbit data source: Space-Track
FENGYUN 1C DEB, 31237 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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31237 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: 1 day ago
TLE from 1 day ago
0 FENGYUN 1C DEB
1 31237U 99025BLT 26263.21552042 .00000576 00000-0 22117-3 0 9995
2 31237 98.4657 260.0204 0086858 235.0702 124.2300 14.32082395 12894Epoch: 2026-09-20T05:10Z
TLE epoch observation values (Epoch: 2026-09-20T05:10:20.964Z)
Latitude
0.00002°
Longitude
-176.67985°
Altitude
823.088 km
Speed
7.423 km/s
True Right ascension
17h 20m 04s
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
04:06:15
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
844.1 km
Perigee altitude
719.718 km
Semi-major axis
7,160.046 km
Eccentricity
0.00869
Inclination
98.4657°
RAAN
260.0204°
Arg. of periapsis
235.0702°
True anomaly
125.04789°
Mean anomaly
124.23°
Eccentric anomaly
124.63945°
Mean motion
3.58236 °/min
Orbital period
100.49 mins
BSTAR
0.00022117
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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. |
|---|---|---|---|---|---|---|---|
| 8 mins | 2026-09-21 11:57:22.121Z | 39.247° NE | 2026-09-21 12:01:22.121Z | 97.051° ESE | 29.426° | 2026-09-21 12:05:22.121Z | 153.528° SSE |
| 7 mins | 2026-09-21 13:37:22.121Z | 344.984° N | 2026-09-21 13:40:22.121Z | 298.472° NW | 32.276° | 2026-09-21 13:44:22.121Z | 235.231° WSW |
| 8 mins | 2026-09-21 23:14:22.121Z | 128.695° SE | 2026-09-21 23:17:22.121Z | 77.928° E | 41.55° | 2026-09-21 23:22:22.121Z | 2.735° NNE |
| 7 mins | 2026-09-22 00:54:22.121Z | 225.194° WSW | 2026-09-22 00:57:22.121Z | 270.089° WNW | 25.34° | 2026-09-22 01:01:22.121Z | 319.066° 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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