SHIYAN 11 (SY-11), 49501 (Decayed)
Orbit data source: Space-Track
SHIYAN 11 (SY-11), 49501 was a payload satellite owned by CASC (CN) in LEO that was launched on Wed, 24 Nov 2021 UTC via a KUAIZHOU-1A 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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49501 intel report (Beta)
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Identifier
Orbit
Country
CN / PRCRelated business
Manufacturer
DFH Shenzhen
Mission
Decayed Civil Radar Imaging
Bus & Motor
SY-11, Unknown motor
Mass
200 kg wet, ~200 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 1 Pan, 1.5 m
Radar Cross Section
0.900 m², Medium (>0.1 m² and < 1m²)
Expand to show TLE details & historyLast TLE update: 10 months ago
TLE from 10 months ago
0 SHIYAN 11 (SY-11)
1 49501U 21112A 25227.19302647 .09437753 25147-5 51024-3 0 9993
2 49501 97.3200 273.6524 0011342 259.4749 100.5273 16.41426175209198Epoch: 2025-08-15T04:37Z
TLE epoch observation values (Epoch: 2025-08-15T04:37:57.487Z)
Latitude
-0.00007°
Longitude
-119.68325°
Altitude
166.631 km
Speed
7.805 km/s
True Right ascension
18h 14m 36s
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
21:28:47
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
166.228 km
Perigee altitude
151.399 km
Semi-major axis
6,536.951 km
Eccentricity
0.00113
Inclination
97.32°
RAAN
273.6524°
Arg. of periapsis
259.4749°
True anomaly
100.65505°
Mean anomaly
100.5273°
Eccentric anomaly
100.59118°
Mean motion
4.10658 °/min
Orbital period
87.66 mins
BSTAR
0.00051024
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Other satellites on launch #112 in the year 2021 (2021-11-24 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.SHIYAN 11 (SY-11) Visibility
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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. |
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| This satellite is decayed. |
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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