YAOGAN 4, 33446
Orbit data source: Space-Track
YAOGAN 4, 33446 is a payload satellite owned by PLA GAD (CN) in SSO that was launched on Mon, 01 Dec 2008 UTC via a CHANG ZHENG 2D launch vehicle from the Jiuquan Satellite Launch Center, China (JSC). Payload-class satellites include a variety of spacecraft equipped with specific instruments for various scientific and technological missions. These include communications satellites like Starlink; space stations such as the ISS; scientific satellites like the Hubble; Earth observation satellites from companies like Planet Labs, Umbra, and HawkEye 360; GPS; miniature CubeSats for education and research; and military/defense satellites.
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33446 intel report (Beta)
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Identifier
Orbit
Country
CN / PRCRelated business
Manufacturer
DFH
Mission
Operational Civil Radar Imaging
Bus & Motor
CAST-2000, Unknown motor
Mass
~700 kg wet, ~700 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 2 Pan, 2.0 m
Radar Cross Section
5.141 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 2 days ago
TLE from 2 days ago
0 YAOGAN 4
1 33446U 08061A 26171.40531236 .00000754 00000-0 98778-4 0 9995
2 33446 97.9306 104.8918 0015630 62.9607 297.3200 14.83205273946144Epoch: 2026-06-20T09:43Z
TLE epoch observation values (Epoch: 2026-06-20T09:43:38.987Z)
Latitude
-0.00003°
Longitude
50.35895°
Altitude
617.243 km
Speed
7.553 km/s
True Right ascension
06h 59m 34s
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
00:39:52
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
627.195 km
Perigee altitude
605.331 km
Semi-major axis
6,994.4 km
Eccentricity
0.00156
Inclination
97.9306°
RAAN
104.8918°
Arg. of periapsis
62.9607°
True anomaly
297.16073°
Mean anomaly
297.32°
Eccentric anomaly
297.24038°
Mean motion
3.71037 °/min
Orbital period
97.03 mins
BSTAR
0.000098778
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Other satellites on launch #61 in the year 2008 (2008-12-01 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.YAOGAN 4 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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2026-06-22 18:33:20.660Z | 102.935° ESE | 2026-06-22 18:35:20.660Z | 71.653° E | 17.221° | 2026-06-22 18:38:20.660Z | 24.983° NE |
| 6 mins | 2026-06-22 20:09:20.660Z | 209.688° SW | 2026-06-22 20:11:20.660Z | 258.773° W | 31.063° | 2026-06-22 20:15:20.660Z | 330.111° NNW |
| 6 mins | 2026-06-23 07:56:20.660Z | 42.056° NE | 2026-06-23 07:58:20.660Z | 82.699° E | 30.099° | 2026-06-23 08:02:20.660Z | 163.117° S |
| 4 mins | 2026-06-23 09:33:20.660Z | 316.185° NNW | 2026-06-23 09:34:20.660Z | 298.641° NW | 17.858° | 2026-06-23 09:37:20.660Z | 251.605° W |
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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