SHIYAN 23 (SY-23), 59728
Orbit data source: Space-Track
SHIYAN 23 (SY-23), 59728 is a payload satellite owned by CNSA (CN) in SSO that was launched on Sat, 11 May 2024 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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59728 intel report (Beta)
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Identifier
Orbit
Country
CN / PRCRelated business
Manufacturer
CAST
Mission
Operational Defense Technology
Bus & Motor
SY23, Unknown motor
Mass
~1,000 kg wet, ~1,000 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 2 Pan, 2.5 m
Radar Cross Section
4.795 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 21 hours ago
TLE from 21 hours ago
0 SHIYAN 23 (SY-23)
1 59728U 24089A 26132.73810345 .00000358 00000-0 45991-4 0 9997
2 59728 97.7771 135.2493 0002509 338.7436 21.3675 14.86989184108571Epoch: 2026-05-12T17:42Z
TLE epoch observation values (Epoch: 2026-05-12T17:42:52.138Z)
Latitude
-0.00005°
Longitude
-0.97611°
Altitude
608.751 km
Speed
7.556 km/s
True Right ascension
09h 00m 59s
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
22:54:03
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
606.127 km
Perigee altitude
602.623 km
Semi-major axis
6,982.512 km
Eccentricity
0.00025
Inclination
97.7771°
RAAN
135.2493°
Arg. of periapsis
338.7436°
True anomaly
21.37798°
Mean anomaly
21.3675°
Eccentric anomaly
21.37274°
Mean motion
3.71985 °/min
Orbital period
96.78 mins
BSTAR
0.000045991
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Other satellites on launch #89 in the year 2024 (2024-05-11 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 23 (SY-23) 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 | 2026-05-13 22:57:05.138Z | 94.507° ESE | 2026-05-13 22:59:05.138Z | 65.565° ENE | 13.623° | 2026-05-13 23:01:05.138Z | 36.225° NE |
| 6 mins | 2026-05-14 00:32:05.138Z | 193.301° SSW | 2026-05-14 00:34:05.138Z | 236.153° WSW | 36.325° | 2026-05-14 00:38:05.138Z | 334.108° NNW |
| 5 mins | 2026-05-14 12:18:05.138Z | 52.966° ENE | 2026-05-14 12:20:05.138Z | 93.115° ESE | 24.232° | 2026-05-14 12:23:05.138Z | 148.02° SSE |
| 5 mins | 2026-05-14 13:54:05.138Z | 328.051° NNW | 2026-05-14 13:56:05.138Z | 287.976° WNW | 22.445° | 2026-05-14 13:59:05.138Z | 239.482° 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 descending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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