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SHIYAN 27A, 63599

Orbit data source: Space-Track

SHIYAN 27A, 63599 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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Identifier
63599, 2025-078A
Orbit
SSO
Last TLE update
13 hours ago
Origin
Manufacturer
CAST
Mission
Operational Defense Radar Imaging
Bus & Motor
SW27, Unknown motor
Mass
300 kg wet, ~300 kg dry
Launch date (UTC)
2025-04-18 (3 months ago)
Launch vehicle
CHANG ZHENG 6A
Launch site
Taiyaun Space Center, China (TSC)
Object type
Payload
Rocket body
Debris
Shape & HBR
Box + 1 Pan, 10 m
Radar Cross Section
13.200 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 13 hours ago
0 SHIYAN 27A
1 63599U 25078A   25191.56542057  .00000006  00000-0  70134-4 0  9991
2 63599  99.6905 198.9196 0001215  91.9868 268.1409 13.57206845 11198
Epoch: 2025-07-10T13:34Z
TLE epoch observation values (Epoch: 2025-07-10T13:34:12.337Z)
Latitude
-0.00006°
Longitude
66.63833°
Altitude
1,048.686 km
Speed
7.328 km/s
True Right ascension
13h 15m 40s
True Declination
0° 00' 00"
Sunlit
Object was in daylight at epoch
Visualization orbit readout
Latitude
-14.76984°
Longitude
-115.38156°
Altitude
1,051.964 km
Speed
7.325 km/s
Apparent Right ascension
01h 57m 28s
Apparent Declination
-27° 02' 47"
Sunlit
Object is in daylight
Visualization observer readout
Local Sidereal Time
15:11:19
Azimuth
55.575° ENE
Elevation
-70.004°
Doppler factor
1
Orbital elements
Apogee altitude
1,044.053 km
Perigee altitude
1,042.25 km
Semi-major axis
7,421.289 km
Eccentricity
0.00012
Inclination
99.6905°
RAAN
198.9196°
Arg. of periapsis
91.9868°
True anomaly
Unknown
Mean anomaly
268.1409°
Eccentric anomaly
Unknown
Mean motion
3.39488 °/min
Orbital period
106.04 mins
BSTAR
0.000070134
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SHIYAN 27A Visibility forecast

Observer location: undefined°, undefined°

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 mins2025-07-11 13:09:41.262Z21.279° NNE2025-07-11 13:15:41.262Z111.247° ESE42.456°2025-07-11 13:21:41.262Z184.785° SSW
7 mins2025-07-11 14:56:41.262Z333.131° NNW2025-07-11 14:59:41.262Z298.381° NW20.15°2025-07-11 15:03:41.262Z256.812° W
9 mins2025-07-11 23:20:41.262Z111.461° ESE2025-07-11 23:24:41.262Z58.589° ENE26.944°2025-07-11 23:29:41.262Z5.991° NNE
11 mins2025-07-12 01:03:41.262Z192.891° SSW2025-07-12 01:08:41.262Z259.085° W35.182°2025-07-12 01:14:41.262Z331.814° NNW
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