FENGYUN 1C DEB, 37704
Orbit data source: Space-Track
FENGYUN 1C DEB, 37704 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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37704 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: 3 months ago
TLE from 3 months ago
0 FENGYUN 1C DEB
1 37704U 99025ELV 25344.79082469 .00002062 00000-0 19315-2 0 9990
2 37704 98.3199 178.1952 0240136 184.1814 190.5574 13.70500661623380Epoch: 2025-12-10T18:58Z
TLE epoch observation values (Epoch: 2025-12-10T18:58:47.253Z)
Latitude
14.06608°
Longitude
171.653°
Altitude
1,174.201 km
Speed
7.181 km/s
True Right ascension
11h 44m 25s
True Declination
13° 59' 23"
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
19:44:10
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,172.034 km
Perigee altitude
817.924 km
Semi-major axis
7,373.116 km
Eccentricity
0.02401
Inclination
98.3199°
RAAN
178.1952°
Arg. of periapsis
184.1814°
True anomaly
190.0677°
Mean anomaly
190.5574°
Eccentric anomaly
190.31113°
Mean motion
3.4282 °/min
Orbital period
105.01 mins
BSTAR
0.0019315
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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. |
|---|---|---|---|---|---|---|---|
| 12 mins | 2026-03-24 00:38:14.806Z | 23.72° NE | 2026-03-24 00:44:14.806Z | 104.864° ESE | 39.559° | 2026-03-24 00:50:14.806Z | 176.072° S |
| 9 mins | 2026-03-24 02:23:14.806Z | 342.235° N | 2026-03-24 02:27:14.806Z | 298.116° NW | 24.554° | 2026-03-24 02:32:14.806Z | 245.271° WSW |
| 7 mins | 2026-03-24 10:43:14.806Z | 91.18° ESE | 2026-03-24 10:46:14.806Z | 58.897° ENE | 19.791° | 2026-03-24 10:50:14.806Z | 20.066° NNE |
| 11 mins | 2026-03-24 12:24:14.806Z | 174.961° S | 2026-03-24 12:29:14.806Z | 270.718° WNW | 43.939° | 2026-03-24 12:35:14.806Z | 342.803° 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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