TIANTONG-1 3, 47321
Orbit data source: Space-Track
TIANTONG-1 3, 47321 is a payload satellite owned by CAST (CN) in GEO that was launched on Tue, 19 Jan 2021 UTC via a CHANG ZHENG 3B launch vehicle from the Xichang Space Center, China (XSC). 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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47321 intel report (Beta)
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Identifier
Orbit
Country
CN / PRCRelated business
Manufacturer
CAST
Mission
Operational Civil Communications
Bus & Motor
DFH-4, DFH-4 LAE
Mass
~5,200 kg wet, ~2,500 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 2 Pan, 15.0 m
Radar Cross Section
34.063 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 23 hours ago
TLE from 23 hours ago
0 TIANTONG-1 3
1 47321U 21003A 26172.54885609 -.00000156 00000-0 00000+0 0 9998
2 47321 1.7523 339.6373 0003142 114.2534 94.9493 1.00269921 20001Epoch: 2026-06-21T13:10Z
TLE epoch observation values (Epoch: 2026-06-21T13:10:21.166Z)
Latitude
-0.861°
Longitude
81.53626°
Altitude
35,787.891 km
Speed
3.075 km/s
True Right ascension
12h 35m 29s
True Declination
0° 51' 36"
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
23:19:20
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
35,801.435 km
Perigee altitude
35,774.938 km
Semi-major axis
42,166.323 km
Eccentricity
0.00031
Inclination
1.7523°
RAAN
339.6373°
Arg. of periapsis
114.2534°
True anomaly
94.98517°
Mean anomaly
94.9493°
Eccentric anomaly
94.96723°
Mean motion
0.25067 °/min
Orbital period
1,436.18 mins
BSTAR
0
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Other satellites on launch #3 in the year 2021 (2021-01-19 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.TIANTONG-1 3 Visibility
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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. |
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| TIANTONG-1 3 is likely not visible in the next few days. |
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47321 neighbors
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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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Click to sort rows by Secondary header in ascending order | Click to sort rows by Secondary name header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Owner header in ascending order | Click to sort rows by Obj. Type header in ascending order | Click to sort rows by Miss dist. header in ascending order | Click to sort rows by Rel. speed header in ascending order | Click to sort rows by Apr. angle header in ascending order | Click to sort rows by TCA header in descending order |
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