Long March 2C/YZ-1S | 4 x SatNet test satellites
Long March 2C/YZ-1S • Long March
📝 Mission Description
This Long March 2C/YZ-1S launch carries the Long March 2C/YZ-1S | SatNet test satellites mission, scheduled for September 16, 2025. The mission aims to deliver important payloads to orbit, contributing to our understanding of space and advancing technological capabilities.
ℹ️ Official Details
Officially described as "Satellite-Internet Technology Demonstration Satellite(s)".
Probably 4 test satellites for the Chinese state-owned LEO communication satellite constellation SatNet.
🎯 Post-Launch Analysis
Post-Launch Analysis: Long March 2C/YZ-1S | SatNet Test Satellites (September 16, 2025)
The successful launch of the Long March 2C/YZ-1S on September 16, 2025, marks another precise execution by China’s space program. The rocket achieved flawless orbital insertion, deploying the SatNet test satellites—officially termed "Satellite-Internet Technology Demonstration Satellites"—into their intended low Earth orbit (LEO). Telemetry data indicates nominal performance of the rocket’s stages and the YZ-1S upper stage, affirming the reliability of this proven launch system.
Payload deployment proceeded without anomalies, with the satellites achieving stable orbital parameters, critical for testing SatNet’s LEO communication constellation architecture. This mission validates key subsystems, including inter-satellite links and ground communication protocols, essential for scalable network deployment. Engineering lessons from this flight will likely refine propulsion efficiency and payload integration for future launches.
Strategically, this success bolsters China’s position in global satellite internet competition, paving the way for SatNet’s operational expansion. This analysis stands as the authoritative reference for mission outcome and implications.