CASC Wentian Long March 5B
Rocket Launch Video Stream
About the Wentian Mission
| Type | Human Exploration |
|---|---|
| Orbit | Low Earth Orbit |
Wentian is the first Laboratory Cabin Module (LCM) and second major component of the Chinese spacestation. It will provide additional navigation avionics, propulsion and orientation control as backup functions for the Core Cabin Module (CCM) as well as a pressurized environment for researchers to conduct science experiments in zero gravity.
Launch Pad & Location
101
Wenchang Space Launch Site, People's Republic of China
| Launches | 18 |
|---|---|
| Orbital Launch Attempts | 18 |
| Total Launches | 74 |
The Wenchang Space Launch Site is a rocket launch site located in Wenchang on the island of Hainan, in China.
Formally a suborbital test center, it currently serves as China's southernmost spaceport. The site was selected for its low latitude, 19° north of the equator, allowing for larger payloads to be launched. It is capable of launching the Long March 5, the heaviest Chinese rocket. Unlike launch facilities on the mainland, Wenchang uses its seaport for deliveries.
CASC Long March 5B Rocket
The configuration of the CZ-5B variant consists of the Long March 5 core stage with its four strapped-on liquid-fueled boosters, but the usual second stage will be absent; in place of the second stage would be heavier low earth orbit payloads.
| Length | 53.7 m |
|---|---|
| Diameter | 5.0 m |
| Stages | 1 |
| Launch Mass | 837.0 T |
| Takeoff Thrust | 10,565.0 kN |
| LEO Capacity | 25,000 kg |
| Maiden Flight | 5/5/2020 |
About CASC
The China Aerospace Science and Technology Corporation (CASC) is the main contractor for the Chinese space program. It is state-owned and has a number of subordinate entities which design, develop and manufacture a range of spacecraft, launch vehicles, strategic and tactical missile systems, and ground equipment. It was officially established in July 1999 as part of a Chinese government reform drive, having previously been one part of the former China Aerospace Corporation. Various incarnations of the program date back to 1956.
| Total Launches | 617 |
|---|---|
| Successful | 601 |
| Failed | 16 |
| Pending | 8 |
| Consecutive Success | 8 |
Frequently Asked Questions
When was the CASC Long March 5B Wentian launch scheduled?
The CASC Long March 5B Wentian launch was scheduled for:
.
Where can I watch the CASC Long March 5B Wentian launch video?
You can watch the CASC Long March 5B launch video on this page. The official video includes full mission coverage with multiple camera angles, onboard views, and expert commentary covering pre-launch procedures, liftoff, stage separation, and payload deployment.
Where did the CASC Long March 5B Wentian mission launch from?
The CASC Long March 5B rocket launched from 101 at Wenchang Space Launch Site, People's Republic of China. The Wenchang Space Launch Site is a rocket launch site located in Wenchang on the island of Hainan, in China. Formally a suborbital test center, it currently serves as China's southernmost spaceport. The site was selected for its low latitude, 19° north of the equator, allowing for larger payloads to be launched. It is capable of launching the Long March 5, the heaviest Chinese rocket. Unlike launch facilities on the mainland, Wenchang uses its seaport for deliveries.
What rocket was used for the Wentian mission?
The Wentian mission launched aboard a CASC Long March 5B rocket. The configuration of the CZ-5B variant consists of the Long March 5 core stage with its four strapped-on liquid-fueled boosters, but the usual second stage will be absent; in place of the second stage would be heavier low earth orbit payloads. Detailed rocket specifications and performance data are available in the rocket details above.
What weather conditions could have delayed the CASC Long March 5B Wentian launch?
The CASC Long March 5B Wentian launch could have been delayed by various weather conditions including lightning within 10 nautical miles, high winds (especially upper-level winds), thick cloud layers, precipitation, and poor visibility. Weather must be favorable at the launch site, downrange landing zones, and abort landing sites.
How can I get updates if the CASC Long March 5B Wentian launch was delayed?
This page was updated in real-time with the latest CASC Long March 5B launch status, including any delays or scrubs for the Wentian mission. You can also check our space launch schedule for historical launch information. Our mobile app provides push notifications for instant alerts about launch status changes. Official CASC live streams provided the most immediate range updates during the launch window.
Last Updated
Last Updated:
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Launch success
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Liftoff
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Updated T-0
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Added launch time per NOTAM
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NET July 24