HULIANWANG DIGUI-21, 63688
Orbit data source: Space-Track
HULIANWANG DIGUI-21, 63688 is a payload satellite owned by Zhongguo Xingwang (CN) in LEO that was launched on Mon, 28 Apr 2025 UTC via a CHANG ZHENG 5B/YZ-2 launch vehicle from the Wenchang Satellite Launch Center (WSC). 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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63688 intel report (Beta)
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Identifier
Orbit
Country
CN / PRCRelated business
Manufacturer
CAST?
Mission
Operational Civil Communications
Bus & Motor
XINGWANG CL, Unknown motor
Mass
~800 kg wet, ~800 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 2 Pan, 5.0 m
Radar Cross Section
5.935 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 8 hours ago
TLE from 8 hours ago
0 HULIANWANG DIGUI-21
1 63688U 25086B 26229.22643980 .00000036 00000-0 49309-4 0 9995
2 63688 86.5067 292.6515 0002425 98.6281 261.5128 13.24411867 62945Epoch: 2026-08-17T05:26Z
TLE epoch observation values (Epoch: 2026-08-17T05:26:04.398Z)
Latitude
-0.00002°
Longitude
-114.47848°
Altitude
1,171.08 km
Speed
7.268 km/s
True Right ascension
19h 30m 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
03:45:59
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,166.864 km
Perigee altitude
1,163.206 km
Semi-major axis
7,543.172 km
Eccentricity
0.00024
Inclination
86.5067°
RAAN
292.6515°
Arg. of periapsis
98.6281°
True anomaly
261.48532°
Mean anomaly
261.5128°
Eccentric anomaly
261.49906°
Mean motion
3.31293 °/min
Orbital period
108.67 mins
BSTAR
0.000049309
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Other satellites on launch #86 in the year 2025 (2025-04-28 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.HULIANWANG DIGUI-21 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. |
|---|---|---|---|---|---|---|---|
| 10 mins | 2026-08-17 15:06:45.766Z | 27.844° NE | 2026-08-17 15:11:45.766Z | 77.091° E | 21.8° | 2026-08-17 15:16:45.766Z | 124.12° SE |
| 12 mins | 2026-08-17 16:55:45.766Z | 346.321° N | 2026-08-17 17:00:45.766Z | 283.281° WNW | 40.596° | 2026-08-17 17:07:45.766Z | 196.242° SSW |
| 8 mins | 2026-08-18 03:20:45.766Z | 109.69° ESE | 2026-08-18 03:23:45.766Z | 80.802° E | 18.709° | 2026-08-18 03:28:45.766Z | 34.605° NE |
| 12 mins | 2026-08-18 05:06:45.766Z | 192.926° SSW | 2026-08-18 05:12:45.766Z | 292.059° WNW | 42.898° | 2026-08-18 05:18:45.766Z | 356.537° 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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