Watch the Launch

TJSW-20

Overview

Destination: Geostationary Transfer Orbit
Mission: Government/Top Secret

Geostationary Transfer Orbit 101 Wenchang Space Launch Site, People's Republic of China

Chinese classified satellite claimed to be for communication technology test purposes. Actual mission not known.

Updates

Cosmic_Penguin • Oct. 20, 2025, 5:18 p.m.

Added launch per NOTAMs; Payload identity highly uncertain.


Cosmic_Penguin • Oct. 23, 2025, 2:34 p.m.

Liftoff.


Cosmic_Penguin • Oct. 23, 2025, 3:15 p.m.

Launch success.


Long March 5

Family:
Configuration:

Long March 5 is a Chinese heavy lift launch system developed by China Academy of Launch Vehicle Technology (CALT). CZ-5 is the first Chinese vehicle designed from the ground up to focus on non-hypergolic liquid rocket propellants. Currently, two CZ-5 vehicle configurations are planned, with maximum payload capacities of ~25,000 kilograms (55,000 lb) to LEO and ~14,000 kilograms (31,000 lb) to GTO. The Long March 5 roughly matches the capabilities of American EELV heavy-class vehicles such as the Delta IV Heavy.

Specifications
  • Stages
    2
  • Length
    57.0 m
  • Diameter
    5.0 m
  • Fairing Diameter
  • Launch Mass
    867.0 T
  • Thrust
    10600.0 kN
Family
  • Name
    Long March 5
  • Family
  • Variant
  • Alias
  • Full Name
    Long March 5
Payload Capacity
  • Launch Cost
  • Low Earth Orbit
    25000.0 kg
  • Geostationary Transfer Orbit
    14000.0 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: 537 Failures: 14 Pending: 4

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

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Wenchang Space Launch Site, People's Republic of China

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