SHIYAN 27F, 63604
Orbit data source: Space-Track
SHIYAN 27F, 63604 is a payload satellite owned by CAST (CN) in SSO that was launched on Fri, 18 Apr 2025 UTC via a CHANG ZHENG 6A launch vehicle from the Taiyaun Space Center, China (TSC). 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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63604 intel report (Beta)
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Identifier
Orbit
Country
CN / PRCRelated business
Manufacturer
CAST
Mission
Operational Defense Radar Imaging
Bus & Motor
SW27, Unknown motor
Mass
300 kg wet, ~300 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 1 Pan, 14.5 m
Radar Cross Section
13.200 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 4 hours ago
TLE from 4 hours ago
0 SHIYAN 27F
1 63604U 25078F 26223.84049591 -.00000002 00000-0 59527-4 0 9991
2 63604 99.6934 230.2233 0000939 85.5074 274.6172 13.57246282 65084Epoch: 2026-08-11T20:10Z
TLE epoch observation values (Epoch: 2026-08-11T20:10:18.846Z)
Latitude
0.00001°
Longitude
-32.65823°
Altitude
1,048.456 km
Speed
7.328 km/s
True Right ascension
15h 20m 53s
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
14:34:14
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,043.705 km
Perigee altitude
1,042.311 km
Semi-major axis
7,421.145 km
Eccentricity
0.00009
Inclination
99.6934°
RAAN
230.2233°
Arg. of periapsis
85.5074°
True anomaly
274.60647°
Mean anomaly
274.6172°
Eccentric anomaly
274.61184°
Mean motion
3.39498 °/min
Orbital period
106.04 mins
BSTAR
0.000059527
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Other satellites on launch #78 in the year 2025 (2025-04-18 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 27F 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. |
|---|---|---|---|---|---|---|---|
| 9 mins | 2026-08-12 01:35:49.827Z | 218.404° SW | 2026-08-12 01:39:49.827Z | 263.354° W | 22.967° | 2026-08-12 01:44:49.827Z | 317.424° NNW |
| 10 mins | 2026-08-12 12:42:49.827Z | 36.843° NE | 2026-08-12 12:46:49.827Z | 88.247° E | 32.832° | 2026-08-12 12:52:49.827Z | 165.763° S |
| 9 mins | 2026-08-12 14:27:49.827Z | 346.902° N | 2026-08-12 14:31:49.827Z | 293.487° NW | 28.862° | 2026-08-12 14:36:49.827Z | 236.522° WSW |
| 7 mins | 2026-08-12 22:53:49.827Z | 89.361° E | 2026-08-12 22:56:49.827Z | 55.705° ENE | 18.611° | 2026-08-12 23:00:49.827Z | 16.313° NNE |
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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