Watch the Launch

Shiyan 29

Circle Image

Overview

Destination: Geosynchronous Orbit
Mission: Government/Top Secret

Geosynchronous Orbit Launch Complex 2 (LC-2) Xichang Satellite Launch Center, People's Republic of China

Satellite officially named for "space environment detection" purposes, exact details unknown.

Updates

Cosmic_Penguin • Sept. 5, 2025, 10:49 a.m.

Launch success.


Cosmic_Penguin • Sept. 3, 2025, 6:05 a.m.

Added launch per NOTAMs; Payload and launch vehicle identities highly uncertain.


Long March 3C/YZ-1

Family:
Configuration: C/YZ-1

Specifications
  • Max Stage
    3
  • Length
    54.8 m
  • Diameter
    3.35 m
  • Fairing Diameter
  • Launch Mass
    345.0 T
  • Thrust
    4441.0 kN
Family
  • Name
    Long March 3C/YZ-1
  • Family
  • Variant
    C/YZ-1
  • Alias
  • Full Name
    Long March 3C/YZ-1
Payload Capacity
  • Launch Cost
  • Low Earth Orbit
  • Geostationary Transfer Orbit
    4800.0 kg
  • Direct Geostationary
  • Sun-Synchronous Capacity

China Aerospace Science and Technology Corporation

China Aerospace Science and Technology Corporation

(CASC)

Chairman & President: Lei Fanpei Founded: 1999 Successes: 567 Failures: 15 Pending: 12

Agency Type:

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

Related News

SpaceNews

China launches experimental Shiyan-29 to GEO, commercial Ceres-1 carries 3 satellites

China conducted a pair of launches sending an experimental spacecraft to geosynchronous orbit and three further satellites into polar orbits. The post China launches experimental Shiyan-29 to GEO, commercial Ceres-1 carries 3 satellites a…

Xichang Satellite Launch Center, People's Republic of China

Launch Complex 2 (LC-2)


Soyuz 2.1a/Fregat-M
In Flight
5 hours, 4 minutes ago
Meridian-M No.21L
43/3 (43L) - Plesetsk Cosmodrome, Russian Federation

Note: Payload identity uncertain. Meridian is a series of communications satellite for military and civilian use.


Tianlong-3
Failure
7 hours, 15 minutes ago
Demo Flight
Tianlong-3 Launch Pad - Jiuquan Satellite Launch Center, People's Republic of China

First test launch of Space Pioneer’s Tianlong-3 rocket.


Falcon 9
Success
23 hours, 37 minutes ago
Starlink Group 10-58
Space Launch Complex 40 - Cape Canaveral SFS, FL, USA

A batch of 29 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.


Space Launch System (SLS)
Success
1 day, 12 hours ago
Artemis II
Launch Complex 39B - Kennedy Space Center, FL, USA

Artemis II is the first crewed mission as part of the Artemis program. Artemis II will send a crew of 4 - 3 Americans and 1 Canadian around the moon …


Falcon 9
Success
3 days, 14 hours ago
Starlink Group 10-44
Space Launch Complex 40 - Cape Canaveral SFS, FL, USA

A batch of 29 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.


Falcon 9
Success
4 days ago
Transporter 16 (Dedicated SSO Rideshare)
Space Launch Complex 4E - Vandenberg SFB, CA, USA

Dedicated rideshare flight to a sun-synchronous orbit with dozens of small microsatellites and nanosatellites for commercial and government customers.


Kinetica 2
Success
4 days ago
Demo Flight (Qingzhou Prototype Spacecraft)
Launch Area 140 - Jiuquan Satellite Launch Center, People's Republic of China

First test launch and mission of CAS Space’s Kinetica-2 rocket, with 3 spacecraft on board: * New March 02 (Qingzhou space station cargo resupply …


Electron
Success
6 days, 2 hours ago
Daughter Of The Stars (LEO-PNT Pathfinder A)
Rocket Lab Launch Complex 1A - Rocket Lab Launch Complex 1, Mahia Peninsula, New Zealand

The European Space Agency (ESA)'s LEO-PNT (Low Earth Orbit Positioning, Navigation and Timing) demonstrator mission will feature a 10-satellite const…


Long March 2C/YZ-1S
Success
1 week ago
Shiyan 33
Launch Area 94 (SLS-2 / 603) - Jiuquan Satellite Launch Center, People's Republic of China

Chinese satellite reported to be for "space environment research" purposes. Actual usage not known.


Falcon 9
Success
1 week ago
Starlink Group 17-17
Space Launch Complex 4E - Vandenberg SFB, CA, USA

A batch of 25 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.