China launches communication technology test satellites on Long March-6
A modified Long March-6 carried new communications test satellites into orbit from Taiyuan, per Xinhua and CASC.
what happened
China launched new communication technology test satellites aboard a modified Long March-6 carrier rocket from the Taiyuan Satellite Launch Center at 9:00 a.m. Beijing time on July 30, entering their planned orbits, per Xinhua and CASC. The satellites will support satellite communications, broadcasting and television, and data transmission, and carry out related technology tests and verification, per Xinhua. The launch was the 660th Long March mission overall, per Xinhua. SpaceNews identifies the pair as TJS-27A and TJS-27B, developed by CAST and SAST respectively; astronomer Jonathan McDowell notes their orbit is characteristic of time-delay-of-arrival electronic intelligence satellites, similar to U.S. Navy reconnaissance systems, a role CASC's own statement does not describe.
why it matters
Routine but worth logging: China keeps iterating communications-satellite technology on its workhorse Long March-6, the steady cadence of test and demonstration launches that feeds its future commercial and military constellations.
for who
Non-US launch and constellation watchers
signal-to-noise
quick facts
- Companies
- CASC
- Category
- launch
- Impact
- noise
- SNR
- 5 / 5
- Event date
- 2026-07-30
- Published
- 2026-07-30 09:36 UTC