The orbit of HY-2 satellite is sun-synchronous with a 14-day cycle in the first half of its lifetime at an altitude of 971 km, while the last half of lifetime at an altitude 973 km with a 168-day cycle. The objective of HY-2 is monitoring the dynamic ocean environment by using microwave sensors onboard. It is used to detect global sea surface wind field, sea surface height, significant wave height and sea surface temperature in all-weather.


Orbit Sun synchronous
Inclination 99.34 degrees
Repea Cycle Phase I mission:104.46 min., Phase II:104.50 min.