YAOGAN-31 L, 47856
Orbit data source: Space-Track
YAOGAN-31 L, 47856 is a payload satellite owned by PLA SSF (CN) in LEO that was launched on Sat, 13 Mar 2021 UTC via a CHANG ZHENG 4C 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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47856 intel report (Beta)
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Identifier
Orbit
Country
CN / PRCRelated business
Manufacturer
DFH
Mission
Operational Defense Sigint
Bus & Motor
Unknown
Mass
~500 kg wet, ~500 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 2 Pan, 0.5 m
Radar Cross Section
0.446 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 1 day ago
TLE from 1 day ago
0 YAOGAN-31 L
1 47856U 21020C 26172.54482722 -.00000115 00000-0 -37990-4 0 9998
2 47856 63.4048 247.5860 0175044 0.5415 359.5769 13.45447603258999Epoch: 2026-06-21T13:04Z
TLE epoch observation values (Epoch: 2026-06-21T13:04:33.071Z)
Latitude
-0.00006°
Longitude
141.70461°
Altitude
960.104 km
Speed
7.436 km/s
True Right ascension
16h 30m 20s
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
00:39:34
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,218.571 km
Perigee altitude
957.195 km
Semi-major axis
7,466.02 km
Eccentricity
0.0175
Inclination
63.4048°
RAAN
247.586°
Arg. of periapsis
0.5415°
True anomaly
359.56176°
Mean anomaly
359.5769°
Eccentric anomaly
359.56936°
Mean motion
3.36441 °/min
Orbital period
107 mins
BSTAR
-0.00003799
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Other satellites on launch #20 in the year 2021 (2021-03-13 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.YAOGAN-31 L 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 | 2026-06-22 14:34:02.053Z | 337.814° N | 2026-06-22 14:40:02.053Z | 41.669° NE | 34.971° | 2026-06-22 14:47:02.053Z | 117.568° SE |
| 11 mins | 2026-06-22 16:26:02.053Z | 305.988° NW | 2026-06-22 16:31:02.053Z | 242.786° WSW | 34.403° | 2026-06-22 16:37:02.053Z | 179.989° S |
| 10 mins | 2026-06-23 06:14:02.053Z | 192.111° SSW | 2026-06-23 06:19:02.053Z | 99.17° ESE | 40.333° | 2026-06-23 06:24:02.053Z | 42.627° NE |
| 9 mins | 2026-06-23 08:06:02.053Z | 273.356° WNW | 2026-06-23 08:09:02.053Z | 311.302° NW | 25.99° | 2026-06-23 08:15:02.053Z | 17.378° NNE |
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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