QSS, 41731 (Decayed)
Orbit data source: Space-Track
QSS, 41731 was a payload satellite owned by CAS (CN) in LEO that was launched on Mon, 15 Aug 2016 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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41731 intel report (Beta)
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Identifier
Orbit
Country
CN / PRCRelated business
Manufacturer
SECM/USTC
Mission
Decayed Civil Technology
Bus & Motor
CAST-2000?, AOCS
Mass
640 kg wet, ~500 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 2 Pan, 2.0 m
Radar Cross Section
5.141 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 3 weeks ago
TLE from 3 weeks ago
0 QSS
1 41731U 16051A 26025.83936072 .15182661 26016-5 24072-3 0 9990
2 41731 97.2882 320.5748 0008634 239.4939 120.5513 16.48001705527994Epoch: 2026-01-25T20:08Z
TLE epoch observation values (Epoch: 2026-01-25T20:08:40.766Z)
Latitude
-0.00001°
Longitude
-106.73877°
Altitude
150.735 km
Speed
7.814 km/s
True Right ascension
21h 22m 17s
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
07:10:25
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
147.024 km
Perigee altitude
135.766 km
Semi-major axis
6,519.532 km
Eccentricity
0.00086
Inclination
97.2882°
RAAN
320.5748°
Arg. of periapsis
239.4939°
True anomaly
120.63646°
Mean anomaly
120.5513°
Eccentric anomaly
120.59388°
Mean motion
4.12305 °/min
Orbital period
87.31 mins
BSTAR
0.00024072
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Other satellites on launch #51 in the year 2016 (2016-08-15 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.QSS 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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| This satellite is decayed. |
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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