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: 10 hours ago
TLE from 10 hours ago
0 HULIANWANG DIGUI-21
1 63688U 25086B 26171.43199850 .00000044 00000-0 69415-4 0 9995
2 63688 86.5080 312.0977 0001354 107.3447 252.7835 13.24409088 55290Epoch: 2026-06-20T10:22Z
TLE epoch observation values (Epoch: 2026-06-20T10:22:04.670Z)
Latitude
-0.00004°
Longitude
-112.06847°
Altitude
1,171.123 km
Speed
7.268 km/s
True Right ascension
20h 48m 23s
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
07:18:21
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,166.067 km
Perigee altitude
1,164.024 km
Semi-major axis
7,543.182 km
Eccentricity
0.00014
Inclination
86.508°
RAAN
312.0977°
Arg. of periapsis
107.3447°
True anomaly
252.76868°
Mean anomaly
252.7835°
Eccentric anomaly
252.77609°
Mean motion
3.31292 °/min
Orbital period
108.67 mins
BSTAR
0.000069415
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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. |
|---|---|---|---|---|---|---|---|
| 13 mins | 2026-06-20 21:50:36.344Z | 352.049° N | 2026-06-20 21:56:36.344Z | 296.977° NW | 42.744° | 2026-06-20 22:03:36.344Z | 190.588° SSW |
| 6 mins | 2026-06-21 08:17:36.344Z | 100.158° ESE | 2026-06-21 08:20:36.344Z | 71.839° E | 15.991° | 2026-06-21 08:23:36.344Z | 44.675° NE |
| 12 mins | 2026-06-21 10:02:36.344Z | 185.877° SSW | 2026-06-21 10:08:36.344Z | 295.863° NW | 44.537° | 2026-06-21 10:14:36.344Z | 359.647° N |
| 4 mins | 2026-06-21 19:39:36.344Z | 54.278° ENE | 2026-06-21 19:41:36.344Z | 72.293° E | 13.23° | 2026-06-21 19:43:36.344Z | 89.85° E |
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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