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: 4 hours ago
TLE from 4 hours ago
0 SHIYAN 27F
1 63604U 25078F 26125.20754605 .00000017 00000-0 86081-4 0 9991
2 63604 99.6914 133.0652 0001107 96.8812 263.2452 13.57245986 51709Epoch: 2026-05-05T04:58Z
TLE epoch observation values (Epoch: 2026-05-05T04:58:51.978Z)
Latitude
-0.00007°
Longitude
-164.73706°
Altitude
1,048.61 km
Speed
7.328 km/s
True Right ascension
08h 52m 15s
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
17:01:03
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,043.83 km
Perigee altitude
1,042.187 km
Semi-major axis
7,421.146 km
Eccentricity
0.00011
Inclination
99.6914°
RAAN
133.0652°
Arg. of periapsis
96.8812°
True anomaly
263.2326°
Mean anomaly
263.2452°
Eccentric anomaly
263.2389°
Mean motion
3.39498 °/min
Orbital period
106.04 mins
BSTAR
0.000086081
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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 | 2026-05-05 12:39:30.663Z | 31.922° NE | 2026-05-05 12:45:30.663Z | 107.053° ESE | 31.964° | 2026-05-05 12:50:30.663Z | 163.683° S |
| 9 mins | 2026-05-05 14:25:30.663Z | 348.76° N | 2026-05-05 14:29:30.663Z | 296.268° NW | 29.713° | 2026-05-05 14:34:30.663Z | 236.004° WSW |
| 7 mins | 2026-05-05 22:51:30.663Z | 89.998° E | 2026-05-05 22:54:30.663Z | 57.554° ENE | 17.984° | 2026-05-05 22:58:30.663Z | 17.827° NNE |
| 11 mins | 2026-05-06 00:33:30.663Z | 171.977° S | 2026-05-06 00:38:30.663Z | 273.938° WNW | 44.038° | 2026-05-06 00:44:30.663Z | 341.853° N |
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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