SHIYAN 19 (SY-19), 55861
Orbit data source: Space-Track
SHIYAN 19 (SY-19), 55861 is a payload satellite owned by SAST (CN) in SSO that was launched on Wed, 15 Mar 2023 UTC via a CHANG ZHENG 11 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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55861 intel report (Beta)
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Identifier
Orbit
Country
CN / PRCRelated business
Manufacturer
SISE
Mission
Operational Civil Technology
Bus & Motor
SY19, Unknown motor
Mass
100 kg wet, 100 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 2 Pan, 1.0 m
Radar Cross Section
0.833 m², Medium (>0.1 m² and < 1m²)
Expand to show TLE details & historyLast TLE update: 21 hours ago
TLE from 21 hours ago
0 SHIYAN 19 (SY-19)
1 55861U 23034A 26172.54825852 .00016415 00000-0 23054-3 0 9998
2 55861 97.3925 29.0673 0004274 350.4065 9.7107 15.56785710183246Epoch: 2026-06-21T13:09Z
TLE epoch observation values (Epoch: 2026-06-21T13:09:29.536Z)
Latitude
-0.00007°
Longitude
-78.05271°
Altitude
397.252 km
Speed
7.674 km/s
True Right ascension
01h 56m 16s
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
21:33:59
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
396.777 km
Perigee altitude
390.989 km
Semi-major axis
6,772.02 km
Eccentricity
0.00043
Inclination
97.3925°
RAAN
29.0673°
Arg. of periapsis
350.4065°
True anomaly
9.71897°
Mean anomaly
9.7107°
Eccentric anomaly
9.71483°
Mean motion
3.89463 °/min
Orbital period
92.44 mins
BSTAR
0.00023054
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Other satellites on launch #34 in the year 2023 (2023-03-15 UTC)
No other RSOs were in this launch
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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 19 (SY-19) 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. |
|---|---|---|---|---|---|---|---|
| 4 mins | 2026-06-22 13:58:57.628Z | 127.719° SE | 2026-06-22 14:00:57.628Z | 79.842° E | 24.206° | 2026-06-22 14:02:57.628Z | 22.666° NE |
| 4 mins | 2026-06-23 02:44:57.628Z | 46.083° ENE | 2026-06-23 02:46:57.628Z | 93.706° ESE | 21.78° | 2026-06-23 02:48:57.628Z | 144.736° SSE |
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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