FENGYUN 1C DEB, 36644
Orbit data source: Space-Track
FENGYUN 1C DEB, 36644 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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36644 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: 1 week ago
TLE from 1 week ago
0 FENGYUN 1C DEB
1 36644U 99025DXN 26250.53926530 .00000949 00000-0 10108-2 0 9990
2 36644 98.4396 357.2170 0286087 193.5880 165.7444 13.59801238652200Epoch: 2026-09-07T12:56Z
TLE epoch observation values (Epoch: 2026-09-07T12:56:32.521Z)
Latitude
-0.00009°
Longitude
176.46293°
Altitude
1,245.237 km
Speed
7.131 km/s
True Right ascension
23h 48m 52s
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
05:49:57
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,245.68 km
Perigee altitude
821.597 km
Semi-major axis
7,411.775 km
Eccentricity
0.02861
Inclination
98.4396°
RAAN
357.217°
Arg. of periapsis
193.588°
True anomaly
166.52458°
Mean anomaly
165.7444°
Eccentric anomaly
166.13714°
Mean motion
3.40142 °/min
Orbital period
105.84 mins
BSTAR
0.0010108
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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. |
|---|---|---|---|---|---|---|---|
| 6 mins | 2026-09-14 18:39:18.592Z | 54.771° ENE | 2026-09-14 18:42:18.592Z | 88.447° E | 15.698° | 2026-09-14 18:45:18.592Z | 123.517° SE |
| 9 mins | 2026-09-14 20:23:18.592Z | 3.019° NNE | 2026-09-14 20:27:18.592Z | 300.316° NW | 60.442° | 2026-09-14 20:32:18.592Z | 209.687° SW |
| 12 mins | 2026-09-15 06:29:18.592Z | 140.862° SSE | 2026-09-15 06:35:18.592Z | 64.902° ENE | 52.077° | 2026-09-15 06:41:18.592Z | 358.128° N |
| 10 mins | 2026-09-15 08:15:18.592Z | 216.794° SW | 2026-09-15 08:19:18.592Z | 258.899° W | 29.521° | 2026-09-15 08:25:18.592Z | 322.37° 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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