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China Aerospace Science and Technology CorporationLong March 7A201, Wenchang Space Launch Site, People's Republic of China

ChinaSat 3B

Launched

May 20, 2025 · 11:50 UTC

Launch Successful

Image: CASC

Summary

ChinaSat 3B launched on a China Aerospace Science and Technology Corporation Long March 7A from 201, Wenchang Space Launch Site, People's Republic of China on May 20, 2025 at 11:50 UTC. The launch window ran from 11:42 to 13:11 UTC. It was China Aerospace Science and Technology Corporation's 524th launch, 23rd this year and humanity's 6,959th orbital launch attempt. It was the 10th Long March 7A flight and the 2nd this year. The payload was bound for Geostationary Transfer Orbit (GTO). Zhongxing 3B, one of 2 catalogued objects, reached a 214 × 35,799 km orbit inclined 15.5°. 2 objects from this launch are catalogued, one of them a payload.

Watch
Vehicle
Long March 7A · China Aerospace Science and Technology Corporation
Booster
No booster details on record.
Mission
Communications · Geostationary Transfer Orbit (GTO)
Milestone
10th Long March 7A flight · 2nd this yearChina Aerospace Science and Technology Corporation's 524th launch23rd this yearhumanity's 6,959th orbital launch attempt110th orbital launch attempt this year

Flight preview

Orbit: as tracked

15.5°Inclination
214 × 35799 kmPerigee × apogeefrom mean elements
631.3 minPeriodfrom mean elements
76.6°Ascending node
513 d agoElement epoch2025-05-20 17:12 UTC · stale

Zhongxing 3B · NORAD 64062 · 2025-106 · Space-Track · tracking 1 of 2 objects

Show the numbers for orbit elements
Object
TBA - TO BE ASSIGNED
Object ID
2025-106A
Epoch
2025-05-20 17:12:52 UTC
Mean motion
2.28094989 rev/day
Eccentricity
0.7298805
Inclination
15.4901°
Ascending node
76.5939°
Arg. of perigee
179.7601°
Mean anomaly
168.7716°
Element set
999
Rev at epoch
1
B*
0

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

Catalogued objects

2 catalogued: 1 payload, 1 rocket stage; 2 still in orbit

  • Zhongxing 3B · NORAD 64062 · in orbit

CZ-7A Y15 Stage 3 · in orbit

Data from J. McDowell, planet4589.org

About this launch

Chinese communication geostationary satellite for unknown purposes.

Pad

Map of 201

201, Wenchang Space Launch Site, People's Republic of China

23rd launch from 201, 3rd this year · 39th from Wenchang Space Launch Site, People's Republic of China

Local pad time at liftoff: May 20, 7:50 PM GMT+8, in twilight

33 launches from this pad · 75 from Wenchang Space Launch Site, People's Republic of China

51 days after the previous launch from this pad

All launches from Wenchang Space Launch Site, People's Republic of ChinaOpen in maps

Updates

Launch success.

Cosmic_Penguin · May 20, 2025 · source

Show 3 earlier updates

  • Liftoff.

    Cosmic_Penguin · 5/20/2025 · source

  • Unofficial Webcast by International Rocket Launches has started

    LL2 · 5/20/2025 · source

  • Added launch per NOTAMs; Payload identity uncertain.

    Cosmic_Penguin · 5/15/2025 · source

Questions

When did ChinaSat 3B launch?

ChinaSat 3B launched on May 20, 2025 at 11:50 UTC. The launch window ran from 11:42 to 13:11 UTC.

Where can I watch ChinaSat 3B?

Coverage: Live: Long March 7A Flight 10 Launch (No Commentary). Watch the replay

What rocket launched ChinaSat 3B?

Long March 7A, flown by China Aerospace Science and Technology Corporation. Long March 7A spec sheet

Where did ChinaSat 3B launch from?

201, Wenchang Space Launch Site, People's Republic of China. Liftoff was May 20, 7:50 PM GMT+8 local time at the pad.

What orbit did ChinaSat 3B reach?

Zhongxing 3B, one of 2 catalogued objects, reached a 214 × 35,799 km orbit inclined 15.5°.

How many satellites did ChinaSat 3B launch?

1 payload from this launch is catalogued, still in orbit (Data from J. McDowell, planet4589.org).