CASC Unknown Payload Long March 4B
About the Unknown Payload Mission
| Type | Unknown |
|---|---|
| Orbit | Unknown |
Details TBD.
Launch Pad & Location
Launch Area 94 (SLS-2 / 603)
Jiuquan Satellite Launch Center, People's Republic of China
| Launches | 138 |
|---|---|
| Orbital Launch Attempts | 138 |
| Total Launches | 299 |
Jiuquan Satellite Launch Center is a Chinese spaceport located between the Ejin, Alxa, Inner Mongolia and Hangtian Town, Jinta County, Jiuquan, Gansu Province. It is part of the Dongfeng Aerospace City (Base 10).
CASC Long March 4B Rocket
The Long March 4B (Chinese: 长征四号乙火箭), also known as the Chang Zheng 4B, CZ-4B and LM-4B is a Chinese orbital carrier rocket. Launched from Launch Complex 1 at the Taiyuan Satellite Launch Center, it is a 3-stage rocket, used mostly to place satellites into low Earth and sun synchronous orbits.
| Length | 44.1 m |
|---|---|
| Diameter | 3.4 m |
| Stages | 3 |
| Launch Mass | 249.0 T |
| Takeoff Thrust | 2,961.0 kN |
| LEO Capacity | 4,200 kg |
| GTO Capacity | 1,500 kg |
| Maiden Flight | 5/10/1999 |
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 | 618 |
|---|---|
| Successful | 602 |
| Failed | 16 |
| Pending | 7 |
| Consecutive Success | 9 |
Frequently Asked Questions
When is the CASC Long March 4B Unknown Payload launch scheduled?
The CASC Long March 4B Unknown Payload launch is currently scheduled for:
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Launch times are subject to change based on weather conditions, technical readiness, and range availability. Check back regularly for the most up-to-date launch time and status updates.
Where is the CASC Long March 4B Unknown Payload mission launching from?
The CASC Long March 4B rocket will launch from Launch Area 94 (SLS-2 / 603) at Jiuquan Satellite Launch Center, People's Republic of China. Jiuquan Satellite Launch Center is a Chinese spaceport located between the Ejin, Alxa, Inner Mongolia and Hangtian Town, Jinta County, Jiuquan, Gansu Province. It is part of the Dongfeng Aerospace City (Base 10). For viewing location recommendations and tips, check the launch location details above.
What rocket is being used for the Unknown Payload mission?
The Unknown Payload mission will launch aboard a CASC Long March 4B rocket. The Long March 4B (Chinese: 长征四号乙火箭), also known as the Chang Zheng 4B, CZ-4B and LM-4B is a Chinese orbital carrier rocket. Launched from Launch Complex 1 at the Taiyuan Satellite Launch Center, it is a 3-stage rocket, used mostly to place satellites into low Earth and sun synchronous orbits. Detailed rocket specifications and performance data are available in the rocket details above.
What weather conditions could delay the CASC Long March 4B Unknown Payload launch?
The CASC Long March 4B Unknown Payload launch can be 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. Check the launch weather forecast above for current conditions and probability of favorable weather.
How can I get updates if the CASC Long March 4B Unknown Payload launch is delayed?
This page is updated in real-time with the latest CASC Long March 4B launch status, including any delays or scrubs for the Unknown Payload mission. You can also check our space launch schedule for the most current information. Enable push notifications through our mobile app to receive instant alerts about launch status changes, weather holds, or new launch times. We recommend following official CASC live streams for the most immediate range updates.
Last Updated
Last Updated:
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Added launch per NOTAMs; Launch vehicle and payload identities extremely uncertain.