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: 5 hours ago
TLE from 5 hours ago
0 SHIYAN 27F
1 63604U 25078F 26305.22333030 -.00000022 00000-0 30536-4 0 9999
2 63604 99.6944 310.4032 0000828 82.9013 277.2220 13.57252822 76121Epoch: 2026-11-01T05:21Z
TLE epoch observation values (Epoch: 2026-11-01T05:21:35.737Z)
Latitude
0°
Longitude
-170.51349°
Altitude
1,048.411 km
Speed
7.328 km/s
True Right ascension
20h 41m 36s
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
06:22:28
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,043.599 km
Perigee altitude
1,042.37 km
Semi-major axis
7,421.121 km
Eccentricity
0.00008
Inclination
99.6944°
RAAN
310.4032°
Arg. of periapsis
82.9013°
True anomaly
277.21259°
Mean anomaly
277.222°
Eccentric anomaly
277.21729°
Mean motion
3.39499 °/min
Orbital period
106.04 mins
BSTAR
0.000030536
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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 | 2026-11-01 13:02:00.510Z | 24.179° NE | 2026-11-01 13:08:00.510Z | 117.351° SE | 58.116° | 2026-11-01 13:13:00.510Z | 178.693° S |
| 8 mins | 2026-11-01 14:48:00.510Z | 341.274° N | 2026-11-01 14:52:00.510Z | 295.215° NW | 24.028° | 2026-11-01 14:56:00.510Z | 252.651° W |
| 8 mins | 2026-11-01 23:13:00.510Z | 105.875° ESE | 2026-11-01 23:16:00.510Z | 70.032° E | 27.272° | 2026-11-01 23:21:00.510Z | 11.821° NNE |
| 11 mins | 2026-11-02 00:56:00.510Z | 189.531° SSW | 2026-11-02 01:01:00.510Z | 267.683° W | 50.534° | 2026-11-02 01:07:00.510Z | 334.869° NNW |
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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