FENGYUN 1C DEB, 29904
Orbit data source: Space-Track
FENGYUN 1C DEB, 29904 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.
Focus sentinelFocus sentinel
Embed this page
Focus sentinelFocus sentinel
29904 intel report (Beta)
Focus sentinelFocus sentinel
Create New Watchlist
Focus sentinelFocus sentinel
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, 0.2 m
Radar Cross Section
Small (<0.1 m²)
Expand to show TLE details & historyLast TLE update: 13 hours ago
TLE from 13 hours ago
0 FENGYUN 1C DEB
1 29904U 99025HA 25310.54375134 .00003027 00000-0 68528-3 0 9996
2 29904 99.0464 346.1038 0209948 66.1685 296.1357 14.44273390985414Epoch: 2025-11-06T13:03Z
TLE epoch observation values (Epoch: 2025-11-06T13:03:00.115Z)
Latitude
0.00003°
Longitude
104.35276°
Altitude
684.033 km
Speed
7.548 km/s
True Right ascension
23h 04m 24s
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
21:47:32
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
891.031 km
Perigee altitude
592.078 km
Semi-major axis
7,119.692 km
Eccentricity
0.02099
Inclination
99.0464°
RAAN
346.1038°
Arg. of periapsis
66.1685°
True anomaly
293.95114°
Mean anomaly
296.1357°
Eccentric anomaly
295.0459°
Mean motion
3.61286 °/min
Orbital period
99.64 mins
BSTAR
0.00068528
Loading maneuver chart data...
Computing Atmospheric mass density...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Other satellites on launch #25 in the year 1999 (1999-05-10 UTC)
Did you know?
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
Loading observer location...
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. |
|---|---|---|---|---|---|---|---|
| 8 mins | 2025-11-07 02:27:55.616Z | 165.966° S | 2025-11-07 02:31:55.616Z | 253.995° W | 44.959° | 2025-11-07 02:35:55.616Z | 345.3° N |
| 6 mins | 2025-11-07 14:34:55.616Z | 55.339° ENE | 2025-11-07 14:36:55.616Z | 88.479° E | 22.674° | 2025-11-07 14:40:55.616Z | 149.271° SSE |
| 7 mins | 2025-11-07 16:12:55.616Z | 344.73° N | 2025-11-07 16:15:55.616Z | 288.991° WNW | 28.004° | 2025-11-07 16:19:55.616Z | 230.038° WSW |
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 ascending order |
|---|
CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
Authenticating...
Click to sort rows by Secondary header in ascending order | Click to sort rows by Secondary name header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Owner header in ascending order | Click to sort rows by Obj. Type header in ascending order | Click to sort rows by Miss dist. header in ascending order | Click to sort rows by Rel. speed header in ascending order | Click to sort rows by Apr. angle header in ascending order | Click to sort rows by TCA header in ascending order |
|---|