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: 6 hours ago
TLE from 6 hours ago
0 SHIYAN 27F
1 63604U 25078F 26089.60242027 .00000005 00000-0 69679-4 0 9995
2 63604 99.6935 97.9878 0000854 99.0397 261.0838 13.57242384 46876Epoch: 2026-03-30T14:27Z
TLE epoch observation values (Epoch: 2026-03-30T14:27:29.111Z)
Latitude
-0.00001°
Longitude
53.12491°
Altitude
1,048.625 km
Speed
7.328 km/s
True Right ascension
06h 31m 57s
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
02:02:04
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,043.656 km
Perigee altitude
1,042.388 km
Semi-major axis
7,421.159 km
Eccentricity
0.00009
Inclination
99.6935°
RAAN
97.9878°
Arg. of periapsis
99.0397°
True anomaly
261.07413°
Mean anomaly
261.0838°
Eccentric anomaly
261.07897°
Mean motion
3.39497 °/min
Orbital period
106.04 mins
BSTAR
0.000069679
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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. |
|---|---|---|---|---|---|---|---|
| 10 mins | 2026-03-30 23:26:35.383Z | 122.781° SE | 2026-03-30 23:31:35.383Z | 59.371° ENE | 29.636° | 2026-03-30 23:36:35.383Z | 4.343° NNE |
| 10 mins | 2026-03-31 01:11:35.383Z | 203.024° SW | 2026-03-31 01:15:35.383Z | 257.842° W | 32.125° | 2026-03-31 01:21:35.383Z | 329.031° NNW |
| 8 mins | 2026-03-31 12:19:35.383Z | 51.891° ENE | 2026-03-31 12:23:35.383Z | 102.274° ESE | 23.66° | 2026-03-31 12:27:35.383Z | 145.413° SSE |
| 10 mins | 2026-03-31 14:03:35.383Z | 357.835° N | 2026-03-31 14:07:35.383Z | 300.863° NW | 37.414° | 2026-03-31 14:13:35.383Z | 219.559° SW |
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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