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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Edit Public Description
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: 13 hours ago
TLE from 13 hours ago
0 SHIYAN 27F
1 63604U 25078F 26032.98784624 .00000012 00000-0 79475-4 0 9991
2 63604 99.6934 42.2159 0000738 87.2934 272.8289 13.57236059 39196Epoch: 2026-02-01T23:42Z
TLE epoch observation values (Epoch: 2026-02-01T23:42:29.915Z)
Latitude
0.00002°
Longitude
-85.59834°
Altitude
1,048.523 km
Speed
7.328 km/s
True Right ascension
02h 48m 51s
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
14:17:20
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,043.593 km
Perigee altitude
1,042.498 km
Semi-major axis
7,421.182 km
Eccentricity
0.00007
Inclination
99.6934°
RAAN
42.2159°
Arg. of periapsis
87.2934°
True anomaly
272.82045°
Mean anomaly
272.8289°
Eccentric anomaly
272.82468°
Mean motion
3.39495 °/min
Orbital period
106.04 mins
BSTAR
0.000079475
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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. |
|---|---|---|---|---|---|---|---|
| 11 mins | 2026-02-02 12:41:58.087Z | 33.05° NE | 2026-02-02 12:46:58.087Z | 93.722° ESE | 32.851° | 2026-02-02 12:52:58.087Z | 166.439° S |
| 9 mins | 2026-02-02 14:27:58.087Z | 345.287° N | 2026-02-02 14:31:58.087Z | 289.018° WNW | 28.932° | 2026-02-02 14:36:58.087Z | 235.067° WSW |
| 6 mins | 2026-02-02 22:53:58.087Z | 86.973° E | 2026-02-02 22:56:58.087Z | 52.838° ENE | 18.366° | 2026-02-02 22:59:58.087Z | 22.044° NNE |
| 10 mins | 2026-02-03 00:35:58.087Z | 174.222° S | 2026-02-03 00:39:58.087Z | 224.509° SW | 43.367° | 2026-02-03 00:45:58.087Z | 340.383° N |
| 4 mins | 2026-02-03 11:45:58.087Z | 75.132° E | 2026-02-03 11:46:58.087Z | 84.848° E | 12.522° | 2026-02-03 11:49:58.087Z | 113.42° SE |
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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