China Launches Communication Tech Test Satellites 27A/B
China successfully launched a pair of communication technology test satellites into orbit on Thursday, further expanding the country’s rapidly growing satellite communications infrastructure. The Communication Technology Test Satellite 27A and 27B (CTTS 27A/B) lifted off at 9:00 a.m. Beijing Time from the Taiyuan Satellite Launch Center in north China’s Shanxi Province aboard a modified Long March 6 carrier rocket, according to Xinhua News Agency.
The satellites successfully entered their planned orbits, and the mission was declared a complete success. The launch also marked the 660th flight of the Long March carrier rocket series, underscoring China’s status as one of the world’s most prolific spacefaring nations.
Mission Objectives
The CTTS 27A and 27B will be primarily used for satellite communications, broadcasting and television services, data transmission, and conducting related technology tests and verification. According to reporting by Guancha.cn, Satellite 27A was developed by the China Academy of Space Technology (CAST), while Satellite 27B was built by the Shanghai Academy of Spaceflight Technology (SAST). The mission employed a “one rocket, two satellites” deployment configuration, demonstrating China’s growing capability in complex multi-payload orbital insertions.
Accelerated Development Cadence
Thursday’s launch is the latest in a rapid succession of Communication Technology Test Satellite missions throughout 2026, revealing a significantly accelerated development and deployment cycle:
- CTTS 24 — Launched May 27 from Wenchang Spacecraft Launch Site on a Long March 7A rocket
- CTTS 25 — Launched June 11 from Wenchang on a Long March 5 rocket for multi-band, high-rate satellite communication technology verification
- CTTS 26A — Launched June 23 from Wenchang on a Long March 7 Modified rocket
- CTTS 27A/B — Launched July 30 from Taiyuan on a Long March 6 Modified rocket
This roughly monthly cadence highlights a strategic push to rapidly modernize and expand China’s satellite communications capabilities. The choice of the Taiyuan launch site is particularly noteworthy — while previous CTTS missions this year launched from Wenchang, an equatorial coastal facility on Hainan Island, Taiyuan is an inland site typically used for Sun-synchronous orbit missions, suggesting a different orbital profile for the 27A/B satellites.
Milestone Achievement
The Long March 6 Modified rocket used for Thursday’s launch is a medium-lift launch vehicle developed by the China Aerospace Science and Technology Corporation (CASC). It has previously been employed for missions including the April 2025 launch of Test Satellite 27 (01-06) and the deployment of Qianfan polar orbit satellites earlier in July 2026.
The 660th flight milestone places China’s launch activity in sharp perspective. According to Wikipedia, the Long March series reached its 500th launch in December 2021 and its 600th in late 2025 — meaning the most recent 60 launches occurred in approximately six months, reflecting a dramatically accelerating operational tempo.
Strategic Significance
China’s accelerated space launch activities align with several national strategic objectives. These include building a comprehensive space-based communications ecosystem, supporting the development of domestic satellite internet constellations such as the “SatNet” project, advancing next-generation 6G communications technology research, and enhancing dual-use satellite capabilities that serve both civilian and military applications.
Additionally, China’s growing launch infrastructure — with active sites at Taiyuan, Wenchang, Jiuquan, and Xichang — provides the operational flexibility needed to sustain this intensive tempo. The ability to rapidly deploy communications test satellites also positions China to reduce its reliance on foreign satellite communications systems, a priority given increasing geopolitical tensions over technology access.
What’s Next
With the 660th Long March mission now complete, China continues to maintain one of the most active space launch programs in the world, averaging well over 50 launches annually. Looking ahead, the country is preparing for several major missions in the second half of 2026, including the Chang’e 7 lunar south pole exploration mission planned for August and the first uncrewed orbital flight of the Mengzhou spacecraft — a next-generation vehicle critical to China’s crewed lunar exploration ambitions. Each new launch in the CTTS series brings China closer to its goal of a fully modernized, domestically controlled satellite communications infrastructure.