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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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<iframe src="https://www.satcat.com/sats-embedded/41731?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

Iframe URL

https://www.satcat.com/sats-embedded/41731?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

41731, 2016-051A

Orbit

SSO

Last TLE update

8 hours ago

Origin

Chinese Academy of Sciences (CAS) (CN / PRC)

Manufacturer

SECM/USTC

Mission

Operational Civil Technology

Bus & Motor

CAST-2000?, AOCS

Mass

640 kg wet, ~500 kg dry

Launch date (UTC)

2016-08-15 (9 years ago)

Launch vehicle

CHANG ZHENG 2D

Launch site

Jiuquan Satellite Launch Center, China (JSC)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box + 2 Pan, 4 m

Radar Cross Section

5.141 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 8 hours ago

0 QSS
1 41731U 16051A   25183.91580936  .00031172  00000-0  46258-3 0  9991
2 41731  97.2980 104.1987 0004434 274.3330  85.7417 15.55154006495495

Epoch: 2025-07-02T21:58Z

TLE epoch observation values (Epoch: 2025-07-02T21:58:45.928Z)

Latitude

-0.00011°

Longitude

-146.68271°

Altitude

404.624 km

Speed

7.668 km/s

True Right ascension

06h 56m 47s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

46.67986°

Longitude

-154.10735°

Altitude

411.02 km

Speed

7.668 km/s

Apparent Right ascension

06h 02m 49s

Apparent Declination

5° 04' 46"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

17:39:43

Azimuth

351.892° N

Elevation

-44.691°

Doppler factor

Orbital elements

Apogee altitude

401.624 km

Perigee altitude

395.615 km

Semi-major axis

6,776.756 km

Eccentricity

0.00044

Inclination

97.298°

RAAN

104.1987°

Arg. of periapsis

274.333°

True anomaly

Unknown

Mean anomaly

85.7417°

Eccentric anomaly

Unknown

Mean motion

3.89054 °/min

Orbital period

92.53 mins

BSTAR

0.00046258

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Other satellites on launch #51 in the year 2016 (2016-08-15 UTC)

3CAT-2, 41732 (Decayed)

LX-1, 41733 (Decayed)

QSS Visibility forecast

Observer location: undefined°, undefined°

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	2025-07-03 07:48:07.933Z	358.903° N	2025-07-03 07:50:07.933Z	313.547° NW	37.122°	2025-07-03 07:53:07.933Z	208.361° SW

Authenticating...

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Check out QSS, 41731 on other resources

View QSS, 41731 on NASA - NSSDCA Website

View QSS, 41731 on Heavens-Above

View QSS, 41731 on Keep Track

View QSS, 41731 on Celestrak

View QSS, 41731 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.