SHIYAN 20A (SY-20A), 54699
Orbit data source: Space-Track
SHIYAN 20A (SY-20A), 54699 is a payload satellite owned by CAST (CN) in LEO that was launched on Mon, 12 Dec 2022 UTC via a CHANG ZHENG 4C 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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54699 intel report (Beta)
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Identifier
Orbit
Country
CN / PRCRelated business
Manufacturer
CAST
Mission
Operational Defense Technology
Bus & Motor
Unknown
Mass
~500 kg wet, ~500 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 2 Pan, 2.5 m
Radar Cross Section
11.063 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 23 hours ago
TLE from 23 hours ago
0 SHIYAN 20A (SY-20A)
1 54699U 22169A 26172.50009475 -.00000049 00000-0 34213-4 0 9992
2 54699 59.9951 226.1924 0006594 177.5507 182.5562 14.29584411183971Epoch: 2026-06-21T12:00Z
TLE epoch observation values (Epoch: 2026-06-21T12:00:08.186Z)
Latitude
0.00003°
Longitude
136.45883°
Altitude
799.376 km
Speed
7.452 km/s
True Right ascension
15h 04m 46s
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
21:32:39
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
797.086 km
Perigee altitude
787.63 km
Semi-major axis
7,170.495 km
Eccentricity
0.00066
Inclination
59.9951°
RAAN
226.1924°
Arg. of periapsis
177.5507°
True anomaly
182.55283°
Mean anomaly
182.5562°
Eccentric anomaly
182.55452°
Mean motion
3.57453 °/min
Orbital period
100.71 mins
BSTAR
0.000034213
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Other satellites on launch #169 in the year 2022 (2022-12-12 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 20A (SY-20A) 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. |
|---|---|---|---|---|---|---|---|
| 6 mins | 2026-06-22 11:59:38.574Z | 353.524° N | 2026-06-22 12:02:38.574Z | 31.979° NE | 18.296° | 2026-06-22 12:05:38.574Z | 69.719° E |
| 9 mins | 2026-06-22 13:43:38.574Z | 323.248° NNW | 2026-06-22 13:47:38.574Z | 54.94° ENE | 44.803° | 2026-06-22 13:52:38.574Z | 139.311° SSE |
| 4 mins | 2026-06-22 15:29:38.574Z | 266.153° W | 2026-06-22 15:31:38.574Z | 241.788° WSW | 13.964° | 2026-06-22 15:33:38.574Z | 218.997° SW |
| 7 mins | 2026-06-23 04:25:38.574Z | 165.129° S | 2026-06-23 04:28:38.574Z | 119.501° SE | 25.832° | 2026-06-23 04:32:38.574Z | 64.254° ENE |
| 9 mins | 2026-06-23 06:08:38.574Z | 246.044° WSW | 2026-06-23 06:12:38.574Z | 310.527° NW | 36.095° | 2026-06-23 06:17:38.574Z | 27.973° NE |
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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