FENGYUN 1C DEB, 40690
Orbit data source: Space-Track
FENGYUN 1C DEB, 40690 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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40690 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: 5 days ago
TLE from 5 days ago
0 FENGYUN 1C DEB
1 40690U 99025EWW 26146.37628628 .00000196 00000-0 17061-3 0 9999
2 40690 99.3986 189.8498 0093734 61.6558 299.4018 13.95884893636724Epoch: 2026-05-26T09:01Z
TLE epoch observation values (Epoch: 2026-05-26T09:01:51.134Z)
Latitude
0.00002°
Longitude
170.43613°
Altitude
877.893 km
Speed
7.43 km/s
True Right ascension
12h 39m 23s
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
20:40:32
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
973.575 km
Perigee altitude
837.034 km
Semi-major axis
7,283.441 km
Eccentricity
0.00937
Inclination
99.3986°
RAAN
189.8498°
Arg. of periapsis
61.6558°
True anomaly
298.46066°
Mean anomaly
299.4018°
Eccentric anomaly
298.93177°
Mean motion
3.49171 °/min
Orbital period
103.1 mins
BSTAR
0.00017061
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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 | 2026-05-31 15:11:09.887Z | 29.601° NE | 2026-05-31 15:16:09.887Z | 91.518° ESE | 33.282° | 2026-05-31 15:21:09.887Z | 165.695° S |
| 7 mins | 2026-05-31 16:55:09.887Z | 337.638° N | 2026-05-31 16:58:09.887Z | 292.836° NW | 25.374° | 2026-05-31 17:02:09.887Z | 242.629° WSW |
| 9 mins | 2026-06-01 02:46:09.887Z | 161.984° S | 2026-06-01 02:50:09.887Z | 143.71° SSE | 44.405° | 2026-06-01 02:55:09.887Z | 346.755° N |
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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