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: 11 hours ago
TLE from 11 hours ago
0 SHIYAN 27F
1 63604U 25078F 26171.50169398 -.00000001 00000-0 60083-4 0 9992
2 63604 99.6897 178.6659 0001212 86.4388 273.6889 13.57242036 57989Epoch: 2026-06-20T12:02Z
TLE epoch observation values (Epoch: 2026-06-20T12:02:26.359Z)
Latitude
-0.00004°
Longitude
89.34067°
Altitude
1,048.47 km
Speed
7.328 km/s
True Right ascension
11h 54m 39s
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
10:20:24
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,043.923 km
Perigee altitude
1,042.124 km
Semi-major axis
7,421.16 km
Eccentricity
0.00012
Inclination
99.6897°
RAAN
178.6659°
Arg. of periapsis
86.4388°
True anomaly
273.67504°
Mean anomaly
273.6889°
Eccentric anomaly
273.68197°
Mean motion
3.39497 °/min
Orbital period
106.04 mins
BSTAR
0.000060083
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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. |
|---|---|---|---|---|---|---|---|
| 12 mins | 2026-06-21 00:31:09.350Z | 169.682° S | 2026-06-21 00:37:09.350Z | 240.634° WSW | 44.215° | 2026-06-21 00:43:09.350Z | 341.789° N |
| 4 mins | 2026-06-21 11:42:09.350Z | 68.939° E | 2026-06-21 11:44:09.350Z | 87.665° E | 11.822° | 2026-06-21 11:46:09.350Z | 106.581° ESE |
| 10 mins | 2026-06-21 13:25:09.350Z | 16.727° NNE | 2026-06-21 13:30:09.350Z | 174.25° S | 44.335° | 2026-06-21 13:35:09.350Z | 194.167° SSW |
| 6 mins | 2026-06-21 15:11:09.350Z | 327.024° NNW | 2026-06-21 15:13:09.350Z | 306.129° NW | 16.005° | 2026-06-21 15:17:09.350Z | 266.746° W |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
Click to sort rows by RSO header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Type header in ascending order | Click to sort rows by Inclination Δ header in ascending order | Click to sort rows by RAAN Δ header in ascending order | Click to sort rows by Coplanar Angle header in ascending order | Click to sort rows by SMA Δ header in ascending order | Click to sort rows by Orbital period header in ascending order | Click to sort rows by <5km Md TCA header in descending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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