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, 5.0 m
Radar Cross Section
13.200 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 17 hours ago
TLE from 17 hours ago
0 SHIYAN 27F
1 63604U 25078F 25256.30252943 -.00000010 00000-0 47712-4 0 9996
2 63604 99.6942 262.6667 0000932 79.8588 280.2656 13.57213485 19978Epoch: 2025-09-13T07:15Z
TLE epoch observation values (Epoch: 2025-09-13T07:15:38.542Z)
Latitude
0.00002°
Longitude
161.21827°
Altitude
1,048.509 km
Speed
7.328 km/s
True Right ascension
17h 30m 40s
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
16:51:01
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,043.819 km
Perigee altitude
1,042.436 km
Semi-major axis
7,421.265 km
Eccentricity
0.00009
Inclination
99.6942°
RAAN
262.6667°
Arg. of periapsis
79.8588°
True anomaly
280.25509°
Mean anomaly
280.2656°
Eccentric anomaly
280.26035°
Mean motion
3.39489 °/min
Orbital period
106.04 mins
BSTAR
0.000047712
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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 | 2025-09-14 01:03:32.840Z | 192.878° SSW | 2025-09-14 01:08:32.840Z | 258.542° W | 35.127° | 2025-09-14 01:14:32.840Z | 331.691° NNW |
| 8 mins | 2025-09-14 12:12:32.840Z | 54.688° ENE | 2025-09-14 12:15:32.840Z | 88.598° E | 21.089° | 2025-09-14 12:20:32.840Z | 142.076° SSE |
| 10 mins | 2025-09-14 13:56:32.840Z | 1.112° NNE | 2025-09-14 14:00:32.840Z | 302.082° NW | 39.925° | 2025-09-14 14:06:32.840Z | 214.739° SW |
| 11 mins | 2025-09-15 00:04:32.840Z | 149.18° SSE | 2025-09-15 00:09:32.840Z | 65.598° ENE | 42.469° | 2025-09-15 00:15:32.840Z | 351.341° N |
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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