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Shiyan 29

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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: 607 Failures: 16 Pending: 8

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
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)


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Success
2 hours, 31 minutes ago
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Glonass-K1? (Kosmos 2621?)
43/3 (43L) - Plesetsk Cosmodrome, Russian Federation

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Ceres-2
Success
1 day, 23 hours ago
4 satellites
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Share-ride of 4 commercial Earth observation and technology demonstration satellites to SSO, details TBD.


Long March 2C
Success
3 days, 6 hours ago
Yaogan 51-07 to 09
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3 Chinese military “remote sensing” satellite of unknown purposes.


Kinetica 2
Success
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SpaceSail Polar Group #17
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Falcon 9
Success
1 week, 1 day ago
Starlink Group 15-18
Space Launch Complex 4E - Vandenberg SFB, CA, USA

A batch of 27 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.


GSLV Mk II
Success
1 week, 2 days ago
IRNSS-1L (NVS-03)
Satish Dhawan Space Centre Second Launch Pad - Satish Dhawan Space Centre, India

This is a replacement satellite for the Indian Regional Navigation Satellite System. The constellation will provide India with an alternative to GPS …


Falcon 9
Success
1 week, 5 days ago
Starlink Group 15-16
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A batch of 27 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.