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, 5.0 m
Radar Cross Section
13.200 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 6 hours ago
TLE from 6 hours ago
0 SHIYAN 27F
1 63604U 25078F 26269.61838950 .00000003 00000-0 66456-4 0 9990
2 63604 99.6946 275.3266 0000949 91.1512 268.9735 13.57249794 71296Epoch: 2026-09-26T14:50Z
TLE epoch observation values (Epoch: 2026-09-26T14:50:28.852Z)
Latitude
-0.00005°
Longitude
47.28252°
Altitude
1,048.512 km
Speed
7.328 km/s
True Right ascension
18h 21m 18s
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
14:37:57
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,043.7 km
Perigee altitude
1,042.291 km
Semi-major axis
7,421.132 km
Eccentricity
0.00009
Inclination
99.6946°
RAAN
275.3266°
Arg. of periapsis
91.1512°
True anomaly
268.96263°
Mean anomaly
268.9735°
Eccentric anomaly
268.96806°
Mean motion
3.39499 °/min
Orbital period
106.04 mins
BSTAR
0.000066456
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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. |
|---|---|---|---|---|---|---|---|
| 12 mins | 2026-09-26 23:47:40.351Z | 142.161° SSE | 2026-09-26 23:53:40.351Z | 71.51° E | 51.292° | 2026-09-26 23:59:40.351Z | 356.153° N |
| 9 mins | 2026-09-27 01:34:40.351Z | 219.458° SW | 2026-09-27 01:38:40.351Z | 266.612° W | 25.818° | 2026-09-27 01:43:40.351Z | 319.186° NNW |
| 10 mins | 2026-09-27 12:41:40.351Z | 38.473° NE | 2026-09-27 12:45:40.351Z | 92.438° ESE | 39.769° | 2026-09-27 12:51:40.351Z | 165.79° S |
| 9 mins | 2026-09-27 14:26:40.351Z | 345.914° N | 2026-09-27 14:30:40.351Z | 290.036° WNW | 34.082° | 2026-09-27 14:35:40.351Z | 235.024° WSW |
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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