TIANHUI 4A, 50572
Orbit data source: Space-Track
TIANHUI 4A, 50572 is a payload satellite owned by G. Cehui dili (CN) in LEO that was launched on Wed, 29 Dec 2021 UTC via a CHANG ZHENG 2D launch vehicle from the Jiuquan Satellite Launch Center, China (JSC). 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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50572 intel report (Beta)
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Identifier
Orbit
Country
CN / PRCRelated business
Manufacturer
DFH
Mission
Operational Civil Science
Bus & Motor
CAST-2000?, Unknown motor
Mass
~1,000 kg wet, ~1,000 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 2 Pan, 1.5 m
Radar Cross Section
2.045 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 23 hours ago
TLE from 23 hours ago
0 TIANHUI 4A
1 50572U 21134A 26172.49744899 .00005642 00000-0 11268-3 0 9990
2 50572 88.9715 322.1090 0010648 61.1846 299.0482 15.46548653250537Epoch: 2026-06-21T11:56Z
TLE epoch observation values (Epoch: 2026-06-21T11:56:19.592Z)
Latitude
0.00001°
Longitude
-126.6695°
Altitude
426.55 km
Speed
7.657 km/s
True Right ascension
21h 28m 26s
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
21:34:07
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
430.846 km
Perigee altitude
416.361 km
Semi-major axis
6,801.741 km
Eccentricity
0.00106
Inclination
88.9715°
RAAN
322.109°
Arg. of periapsis
61.1846°
True anomaly
298.94146°
Mean anomaly
299.0482°
Eccentric anomaly
298.99484°
Mean motion
3.86913 °/min
Orbital period
93.04 mins
BSTAR
0.00011268
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Other satellites on launch #134 in the year 2021 (2021-12-29 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.TIANHUI 4A 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. |
|---|---|---|---|---|---|---|---|
| 4 mins | 2026-06-22 22:41:05.803Z | 322.767° NNW | 2026-06-22 22:42:05.803Z | 285.884° WNW | 31.868° | 2026-06-22 22:45:05.803Z | 206.699° SW |
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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