Showing default

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.

Loading next visibility...

Iframe embed code

<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

Optional Secondary NORAD IDs

Max 10 NORAD IDs; Separated by commas

Initial load time (optional)

ISO8601 Format

TLE date request (optional)

ISO8601 Format

Identifier

41731, 2016-051A

Orbit

SSO

Country

CN / PRC

Related business

Chinese Academy of Sciences (CAS) (CN)

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, 2.0 m

Radar Cross Section

5.141 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 12 hours ago

TLE from 12 hours ago

0 QSS
1 41731U 16051A   25350.37113508  .00155861  00000-0  67414-3 0  9993
2 41731  97.2974 276.6281 0006643  71.3792 288.8199 15.84471743521531

Epoch: 2025-12-16T08:54Z

TLE epoch observation values (Epoch: 2025-12-16T08:54:26.070Z)

Latitude

-0.00005°

Longitude

57.76317°

Altitude

319.56 km

Speed

7.717 km/s

True Right ascension

18h 26m 30s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

Unknown

Longitude

Unknown

Altitude

Unknown

Speed

Unknown

Apparent Right ascension

Unknown

Apparent Declination

Unknown

Sunlit

N/A

Visualization observer readout

Local Sidereal Time

19:47:07

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

319.134 km

Perigee altitude

310.242 km

Semi-major axis

6,692.825 km

Eccentricity

0.00066

Inclination

97.2974°

RAAN

276.6281°

Arg. of periapsis

71.3792°

True anomaly

288.74783°

Mean anomaly

288.8199°

Eccentric anomaly

288.78387°

Mean motion

3.96396 °/min

Orbital period

90.82 mins

BSTAR

0.00067414

Loading maneuver chart data...

Computing Atmospheric mass density...

Loading historical data...

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

3CAT-2, 41732 (Decayed)

LX-1, 41733 (Decayed)

Did you know?

You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.

Click here to try in Sandbox

QSS Visibility forecast

Loading observer location...
Set Observer location

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.
4 mins	2025-12-17 08:11:34.099Z	8.669° NNE	2025-12-17 08:13:34.099Z	313.087° NW	44.263°	2025-12-17 08:15:34.099Z	196.951° SSW

Items per page:

1–1 of 1 items

of 1 page

Co-orbital & Co-planar RSOs

Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions

Please sign-in to view Co-orbital & Co-planar RSOs.

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

CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

Authenticating...

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

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.

QSS, 41731

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 12 hours ago

TLE from 12 hours ago

TLE epoch observation values (Epoch: 2025-12-16T08:54:26.070Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

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

QSS Visibility forecast

Co-orbital & Co-planar RSOs

Check out QSS, 41731 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 12 hours ago