FENGYUN 1C DEB, 31691
Orbit data source: Space-Track
FENGYUN 1C DEB, 31691 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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31691 intel report (Beta)
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Edit Public Description
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: 13 hours ago
TLE from 13 hours ago
0 FENGYUN 1C DEB
1 31691U 99025CCZ 26009.50360419 .00005813 00000-0 23809-2 0 9991
2 31691 98.8787 101.3228 0061678 161.2260 199.1214 14.26509420645074Epoch: 2026-01-09T12:05Z
TLE epoch observation values (Epoch: 2026-01-09T12:05:11.402Z)
Latitude
0.00001°
Longitude
170.98288°
Altitude
848.228 km
Speed
7.407 km/s
True Right ascension
06h 45m 17s
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
01:00:51
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
844.857 km
Perigee altitude
756.303 km
Semi-major axis
7,178.717 km
Eccentricity
0.00617
Inclination
98.8787°
RAAN
101.3228°
Arg. of periapsis
161.226°
True anomaly
198.89156°
Mean anomaly
199.1214°
Eccentric anomaly
199.00631°
Mean motion
3.56839 °/min
Orbital period
100.89 mins
BSTAR
0.0023809
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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. |
|---|---|---|---|---|---|---|---|
| 9 mins | 2026-01-10 05:03:05.558Z | 126.196° SE | 2026-01-10 05:07:05.558Z | 76.904° E | 26.906° | 2026-01-10 05:12:05.558Z | 7.312° NNE |
| 7 mins | 2026-01-10 06:44:05.558Z | 211.388° SW | 2026-01-10 06:47:05.558Z | 261.106° W | 28.648° | 2026-01-10 06:51:05.558Z | 321.303° NNW |
| 8 mins | 2026-01-10 18:59:05.558Z | 12.058° NNE | 2026-01-10 19:02:05.558Z | 341.67° N | 44.701° | 2026-01-10 19:07:05.558Z | 197.179° 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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