FENGYUN 1C DEB, 39540
Orbit data source: Space-Track
FENGYUN 1C DEB, 39540 is space debris in LEO 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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39540 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 weeks ago
TLE from 2 weeks ago
0 FENGYUN 1C DEB
1 39540U 99025EWH 26186.84708398 .00001776 00000-0 22438-2 0 9998
2 39540 106.1911 179.3595 0398669 307.1839 170.7406 13.37735419718401Epoch: 2026-07-05T20:19Z
TLE epoch observation values (Epoch: 2026-07-05T20:19:48.055Z)
Latitude
57.55234°
Longitude
157.59883°
Altitude
1,422.288 km
Speed
7.013 km/s
True Right ascension
01h 45m 33s
True Declination
57° 24' 35"
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
05:17:32
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,414.221 km
Perigee altitude
816.727 km
Semi-major axis
7,493.611 km
Eccentricity
0.03987
Inclination
106.1911°
RAAN
179.3595°
Arg. of periapsis
307.1839°
True anomaly
171.44114°
Mean anomaly
170.7406°
Eccentric anomaly
171.09422°
Mean motion
3.34585 °/min
Orbital period
107.6 mins
BSTAR
0.0022438
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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 | 2026-07-21 21:47:13.774Z | 81.115° E | 2026-07-21 21:51:13.774Z | 45.134° ENE | 19.371° | 2026-07-21 21:56:13.774Z | 3.724° NNE |
| 13 mins | 2026-07-21 23:29:13.774Z | 148.512° SSE | 2026-07-21 23:35:13.774Z | 66.184° ENE | 44.536° | 2026-07-21 23:42:13.774Z | 339.422° N |
| 8 mins | 2026-07-22 01:18:13.774Z | 232.28° WSW | 2026-07-22 01:21:13.774Z | 262.792° W | 19.446° | 2026-07-22 01:26:13.774Z | 305.709° NW |
| 12 mins | 2026-07-22 12:35:13.774Z | 44.771° NE | 2026-07-22 12:40:13.774Z | 95.937° ESE | 32.637° | 2026-07-22 12:47:13.774Z | 170.834° S |
| 13 mins | 2026-07-22 14:19:13.774Z | 10.913° NNE | 2026-07-22 14:26:13.774Z | 294.624° NW | 36.966° | 2026-07-22 14:32:13.774Z | 233.813° WSW |
| 5 mins | 2026-07-22 16:07:13.774Z | 337.617° N | 2026-07-22 16:09:13.774Z | 322.084° NNW | 13.162° | 2026-07-22 16:12:13.774Z | 299.24° NW |
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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