Long March 4B | Ziyuan-3-04
Launch Successful
L - -- : -- : -- : --
Launch Window
Dec. 16, 2025, 3:10 a.m. - Dec. 16, 2025, 3:39 a.m.
Dec. 16, 2025, 3:10 a.m. - Dec. 16, 2025, 3:39 a.m.
The ZY-3 (Ziyuan-3, 'Resource-3') series represents China's first high-resolution, stereoscopic mapping satellites for civilian use. The second satellite is managed by the Satellite Surveying and Mapping Application Center (SASMAC). The imaging payload consists of a three-line camera array and a multispectral imager. The three-line panchromatic camera array to acquire stereoscopic imagery consists of three telescopic cameras with one oriented to the nadir and the other two each offset by 22° forward and backward in flight direction. The stereo mapping camera of ZY-3 has a resolution of 2.1 m for the nadir camera, and 2.6 m for the offset cameras. The swath width is 51 km. The multispectral imager for environmental and vegetation monitoring consists of a three-mirror telescope and a cooled detector system sensitive to four wavelength bands to capture full-color imagery as well as near-infrared data. The ground resolution of this system is 5.8 m.
Launch success.
Added launch per NOTAMs; Payload and launch vehicle identities uncertain.
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.
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.
INFO WIKI
China conducted a pair of launches in recent days, sending a commercial cargo spacecraft and tech demo into orbit, followed by a remote sensing satellite. The post China launches experimental cargo spacecraft, opaque tech demo mission and…
Global launch activity is set to surge over the next week, with 13 missions scheduled… The post Launch Roundup: Ariane 6, Falcon 9, Atlas V, and Electron launches highlight busy week appeared first on NASASpaceFlight.com.
Soyuz MS-29 will carry three cosmonauts and one astronaut to the International Space Station aboard the Soyuz spacecraft from the Baikonur Cosmodrome…
A batch of 29 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.
A batch of 27 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.
A batch of 24 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.
First launch of the Long March 10B rocket and first ever successful rocket booster recovery of a Chinese launch vehicle. Payloads on board is TBD.
A batch of 29 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.
Dedicated rideshare flight to a sun-synchronous orbit with dozens of small microsatellites and nanosatellites for commercial and government customers.
20 Low Earth Orbit communication satellites with Ku, Q and V band payloads for the G60 constellation operated by Shanghai Spacesail Technologies with…
A batch of 29 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system. The Falcon 9 1st st…
18 Low Earth Orbit communication satellites with Ku, Q and V band payloads for the G60 constellation operated by Shanghai Spacesail Technologies with…