FENGYUN 1C DEB, 31737
Orbit data source: Space-Track
FENGYUN 1C DEB, 31737 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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31737 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: 2 days ago
TLE from 2 days ago
0 FENGYUN 1C DEB
1 31737U 99025CEL 26236.34144885 .00001792 00000-0 26028-3 0 9992
2 31737 97.8922 266.8966 0142550 282.1577 141.3946 14.70553639 19407Epoch: 2026-08-24T08:11Z
TLE epoch observation values (Epoch: 2026-08-24T08:11:41.180Z)
Latitude
63.53122°
Longitude
155.27339°
Altitude
749.192 km
Speed
7.444 km/s
True Right ascension
16h 43m 16s
True Declination
63° 23' 37"
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
01:12:34
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
756.63 km
Perigee altitude
556.077 km
Semi-major axis
7,034.49 km
Eccentricity
0.01426
Inclination
97.8922°
RAAN
266.8966°
Arg. of periapsis
282.1577°
True anomaly
142.39977°
Mean anomaly
141.3946°
Eccentric anomaly
141.89858°
Mean motion
3.6787 °/min
Orbital period
97.86 mins
BSTAR
0.00026028
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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 | 2026-08-26 14:22:22.723Z | 32.069° NE | 2026-08-26 14:26:22.723Z | 95.408° ESE | 31.22° | 2026-08-26 14:30:22.723Z | 161.919° S |
| 6 mins | 2026-08-26 16:00:22.723Z | 335.179° NNW | 2026-08-26 16:03:22.723Z | 287.453° WNW | 22.117° | 2026-08-26 16:06:22.723Z | 245.046° WSW |
| 6 mins | 2026-08-27 01:22:22.723Z | 117.52° SE | 2026-08-27 01:25:22.723Z | 59.517° ENE | 27.305° | 2026-08-27 01:28:22.723Z | 13.751° NNE |
| 6 mins | 2026-08-27 02:59:22.723Z | 221.744° SW | 2026-08-27 03:01:22.723Z | 255.476° W | 24.192° | 2026-08-27 03:05:22.723Z | 318.923° 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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