FENGYUN 1C DEB, 33728
Orbit data source: Space-Track
FENGYUN 1C DEB, 33728 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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33728 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: 3 days ago
TLE from 3 days ago
0 FENGYUN 1C DEB
1 33728U 99025DHR 25365.12928020 .00011987 00000-0 93810-3 0 9993
2 33728 98.9783 63.5893 0148041 155.9090 204.9144 14.92900278985749Epoch: 2025-12-31T03:06Z
TLE epoch observation values (Epoch: 2025-12-31T03:06:09.809Z)
Latitude
-0.00005°
Longitude
-82.7542°
Altitude
685.731 km
Speed
7.463 km/s
True Right ascension
04h 14m 21s
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
16:55:48
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
689.07 km
Perigee altitude
482.875 km
Semi-major axis
6,964.109 km
Eccentricity
0.0148
Inclination
98.9783°
RAAN
63.5893°
Arg. of periapsis
155.909°
True anomaly
204.21158°
Mean anomaly
204.9144°
Eccentric anomaly
204.56182°
Mean motion
3.73461 °/min
Orbital period
96.4 mins
BSTAR
0.0009381
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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. |
|---|---|---|---|---|---|---|---|
| 7 mins | 2026-01-03 03:36:52.764Z | 141.801° SSE | 2026-01-03 03:40:52.764Z | 62.179° ENE | 34.719° | 2026-01-03 03:43:52.764Z | 3.593° NNE |
| 5 mins | 2026-01-03 16:56:52.764Z | 27.749° NE | 2026-01-03 16:58:52.764Z | 134.445° SE | 41.538° | 2026-01-03 17:01:52.764Z | 185.571° SSW |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
Click to sort rows by RSO header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Type header in ascending order | Click to sort rows by Inclination Δ header in ascending order | Click to sort rows by RAAN Δ header in ascending order | Click to sort rows by Coplanar Angle header in ascending order | Click to sort rows by SMA Δ header in ascending order | Click to sort rows by Orbital period header in ascending order | Click to sort rows by <5km Md TCA header in descending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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