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: 9 hours ago
TLE from 9 hours ago
0 SHIYAN 27F
1 63604U 25078F 25339.97233835 .00000056 00000-0 13982-3 0 9990
2 63604 99.6927 345.0825 0000706 96.9632 263.1586 13.57228001 31327Epoch: 2025-12-05T23:20Z
TLE epoch observation values (Epoch: 2025-12-05T23:20:10.033Z)
Latitude
-0.00009°
Longitude
-79.96605°
Altitude
1,048.641 km
Speed
7.328 km/s
True Right ascension
23h 00m 19s
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
06:11:30
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,043.599 km
Perigee altitude
1,042.551 km
Semi-major axis
7,421.212 km
Eccentricity
0.00007
Inclination
99.6927°
RAAN
345.0825°
Arg. of periapsis
96.9632°
True anomaly
263.15057°
Mean anomaly
263.1586°
Eccentric anomaly
263.15458°
Mean motion
3.39493 °/min
Orbital period
106.04 mins
BSTAR
0.00013982
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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. |
|---|---|---|---|---|---|---|---|
| 9 mins | 2025-12-06 12:20:30.457Z | 43.831° NE | 2025-12-06 12:25:30.457Z | 102.623° ESE | 24.235° | 2025-12-06 12:29:30.457Z | 146.282° SSE |
| 10 mins | 2025-12-06 14:05:30.457Z | 357.097° N | 2025-12-06 14:09:30.457Z | 300.181° NW | 36.884° | 2025-12-06 14:15:30.457Z | 220.488° SW |
| 4 mins | 2025-12-06 22:33:30.457Z | 67.989° E | 2025-12-06 22:34:30.457Z | 58.162° ENE | 12.865° | 2025-12-06 22:37:30.457Z | 29.628° NE |
| 11 mins | 2025-12-07 00:13:30.457Z | 156.113° SSE | 2025-12-07 00:18:30.457Z | 61.812° ENE | 44.284° | 2025-12-07 00:24:30.457Z | 348.459° N |
| 5 mins | 2025-12-07 02:01:30.457Z | 246.999° WSW | 2025-12-07 02:03:30.457Z | 267.982° W | 15.536° | 2025-12-07 02:06:30.457Z | 298.522° NW |
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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