Hai Yang 1
Series of satellites for ocean observation. "Hai Yang" = "Ocean".
Chinese programme: CAST responsible of development, NSOAS of operations.
The platforms are actively stabilised over 3 axes.
The design life time is 2 years for HY-1A, 6 years for follow-on.
The satellites exploit the sunsynchronous orbit around 10:30.
The replacement policy is based on launching satellites in sequence, roughly 6 months before the expected end-of-life of a satellite.
See detailed description at
Data stored onboard and transmitted to receiving stations in Beijing and SanYa .
Real-time transmission to X-band stations in Beijing, Hangzhou, SanYa and Mudanjiang.
All data concentrated to the NSOAS centre in Beijing for processing, analysis and distribution.
2002 - 2030
Associated satellites and instruments
Note: red tag => no longer operational , green tag => operational
, blue tag => planned