launched from China

Haiyang-4A

Success
NOV 13202422:42:00 UTC

Haiyang-4A is China's first satellite dedicated to ocean salinity detection, carrying a microwave radiometer to measure sea-surface salinity and soil moisture globally.

The Long March 4B first stage was fitted with grid fins to control its descent impact area.

launched from LC-9 Taiyuan

aboard Long March 4B 4B-Y53 into SSO

Payload

Haiyang-4A (Haiyang Yandu Tance)

Oceanography

last updated Jun 16, 2026