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China Aerospace Science and Technology CorporationLong March 2DLaunch Area 94 (SLS-2 / 603), Jiuquan Satellite Launch Center, People's Republic of China

QUESS (Micius)

Launched

August 15, 2016 · 17:40 UTC

Launch Successful

Summary

QUESS (Micius) launched on a China Aerospace Science and Technology Corporation Long March 2D from Launch Area 94 (SLS-2 / 603), Jiuquan Satellite Launch Center, People's Republic of China on August 15, 2016 at 17:40 UTC. The launch window ran from 17:33 to 18:00 UTC. It was China Aerospace Science and Technology Corporation's 180th launch, 12th this year and humanity's 5,580th orbital launch attempt. It was the 29th Long March 2D flight and the 3rd this year. The payload was bound for Sun-Synchronous Orbit (SSO). Mozi hao, one of 3 catalogued objects, reached a 495 × 511 km orbit inclined 97.4°. 3 objects from this launch are catalogued, all of them payloads.

Booster
No booster details on record.
Mission
Communications · Sun-Synchronous Orbit (SSO)
Milestone
29th Long March 2D flight · 3rd this yearChina Aerospace Science and Technology Corporation's 180th launch12th this yearhumanity's 5,580th orbital launch attempt51st orbital launch attempt this year

Flight preview

Orbit: as tracked

97.4°Inclination
495 × 511 kmPerigee × apogeefrom mean elements
94.5 minPeriodfrom mean elements
144.6°Ascending node
3713 d agoElement epoch2016-08-15 20:40 UTC · stale

Mozi hao · NORAD 41731 · 2016-051 · Space-Track · tracking 1 of 3 objects

Show the numbers for orbit elements
Object
TBA - TO BE ASSIGNED
Object ID
2016-051A
Epoch
2016-08-15 20:40:01 UTC
Mean motion
15.23209994 rev/day
Eccentricity
0.0011764
Inclination
97.3577°
Ascending node
144.6407°
Arg. of perigee
256.122°
Mean anomaly
189.8998°
Element set
999
Rev at epoch
2
B*
0

Perigee, apogee and period are Kepler figures from the catalogued mean elements, not a propagated state. Published orbit: SSO. Ascent drawn from padside's representative profile.

Catalogued objects

3 catalogued: 3 payloads; none still in orbit

  • Mozi hao · NORAD 41731 · re-entered January 25, 2026
  • 3Cat-2 · NORAD 41732 · re-entered December 18, 2023
  • Lixing 1 · NORAD 41733 · re-entered August 19, 2016

Data from J. McDowell, planet4589.org

About this launch

Quantum Experiments at Space Scale (QUESS) is the first satellite purpose-built for quantum experiments in the world. The 600kg satellite will test long range quantum communications at longer range than ever before. So far scientists have managed to reach up to around 300km, but they hope that in space the range can be increased significantly. They will be testing it up to around 1200km. The mission is expected to last 2 years

Pad

Map of Launch Area 94 (SLS-2 / 603)

Launch Area 94 (SLS-2 / 603), Jiuquan Satellite Launch Center, People's Republic of China

44th launch from Launch Area 94 (SLS-2 / 603), 4th this year · 86th from Jiuquan Satellite Launch Center, People's Republic of China

Local pad time at liftoff: Aug 16, 1:40 AM GMT+8, at night

138 launches from this pad · 299 from Jiuquan Satellite Launch Center, People's Republic of China

47 days after the previous launch from this pad

Questions

When did QUESS (Micius) launch?

QUESS (Micius) launched on August 15, 2016 at 17:40 UTC. The launch window ran from 17:33 to 18:00 UTC.

Where can I watch QUESS (Micius)?

Coverage: China launches world's first quantum satellite successfully. Watch the replay

What rocket launched QUESS (Micius)?

Long March 2D, flown by China Aerospace Science and Technology Corporation. Long March 2D spec sheet

Where did QUESS (Micius) launch from?

Launch Area 94 (SLS-2 / 603), Jiuquan Satellite Launch Center, People's Republic of China. Liftoff was Aug 16, 1:40 AM GMT+8 local time at the pad.

What orbit did QUESS (Micius) reach?

Mozi hao, one of 3 catalogued objects, reached a 495 × 511 km orbit inclined 97.4°.

How many satellites did QUESS (Micius) launch?

3 payloads from this launch are catalogued, none of them still in orbit (Data from J. McDowell, planet4589.org).