QSS, 41731
Orbit data source: Space-Track
QSS, 41731 is a payload satellite owned by CAS (CN) in SSO 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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Edit Public Description
Identifier
Orbit
Country
CN / PRCRelated business
Manufacturer
SECM/USTC
Mission
Operational 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: 13 hours ago
TLE from 13 hours ago
0 QSS
1 41731U 16051A 25258.60869796 .00066670 00000-0 76415-3 0 9993
2 41731 97.2931 180.7260 0006105 32.6747 327.4888 15.61870279507125Epoch: 2025-09-15T14:36Z
TLE epoch observation values (Epoch: 2025-09-15T14:36:31.503Z)
Latitude
-0.00001°
Longitude
-33.21617°
Altitude
381.924 km
Speed
7.683 km/s
True Right ascension
12h 02m 54s
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
20:19:04
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
383.286 km
Perigee altitude
375.035 km
Semi-major axis
6,757.297 km
Eccentricity
0.00061
Inclination
97.2931°
RAAN
180.726°
Arg. of periapsis
32.6747°
True anomaly
327.45118°
Mean anomaly
327.4888°
Eccentric anomaly
327.46999°
Mean motion
3.90736 °/min
Orbital period
92.13 mins
BSTAR
0.00076415
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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 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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2025-09-16 08:04:09.843Z | 357.18° N | 2025-09-16 08:07:09.843Z | 266.107° W | 33.332° | 2025-09-16 08:09:09.843Z | 215.926° SW |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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