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: 13 hours ago
TLE from 13 hours ago
0 HULIANWANG DIGUI-21
1 63688U 25086B 26302.96163259 .00000016 00000-0 24668-5 0 9994
2 63688 86.5029 267.7998 0001395 81.7709 278.3584 13.24404324 72701Epoch: 2026-10-29T23:04Z
TLE epoch observation values (Epoch: 2026-10-29T23:04:45.055Z)
Latitude
0.00004°
Longitude
-116.67647°
Altitude
1,170.685 km
Speed
7.268 km/s
True Right ascension
17h 51m 11s
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
07:23:33
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,166.116 km
Perigee altitude
1,164.011 km
Semi-major axis
7,543.201 km
Eccentricity
0.00014
Inclination
86.5029°
RAAN
267.7998°
Arg. of periapsis
81.7709°
True anomaly
278.34258°
Mean anomaly
278.3584°
Eccentric anomaly
278.35049°
Mean motion
3.31291 °/min
Orbital period
108.67 mins
BSTAR
0.0000024668
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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 | 2026-10-30 20:57:47.107Z | 124.339° SE | 2026-10-30 21:02:47.107Z | 76.972° E | 23.276° | 2026-10-30 21:07:47.107Z | 30.531° NE |
| 12 mins | 2026-10-30 22:45:47.107Z | 200.044° SSW | 2026-10-30 22:50:47.107Z | 262.262° W | 59.384° | 2026-10-30 22:57:47.107Z | 354.398° N |
| 8 mins | 2026-10-31 08:20:47.107Z | 38.27° NE | 2026-10-31 08:24:47.107Z | 77.352° E | 19.27° | 2026-10-31 08:28:47.107Z | 113.481° SE |
| 12 mins | 2026-10-31 10:08:47.107Z | 351.162° N | 2026-10-31 10:13:47.107Z | 287.998° WNW | 71.25° | 2026-10-31 10:20:47.107Z | 189.05° SSW |
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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