August 2, 2016


The 1500 kg satellite carries a payload for the altimetry mission composed of:

  • a Ku/C double-frequency nadir radar altimeter (China)
  • a triple-frequency nadir radiometer (China)
  • a laser retro reflector (China)
  • a DORIS instrument (France)
  • a double-frequency high precision GPS instrument (China)


HY-2A during mechanical tests

In addition to the altimetry payload, two instruments complete the available measurements:

  • a scanning radiometer in five frequencies (China) dedicated to surface temperature measurement;
  • a scanning scatterometer in Ku band (China) dedicated to surface wind measurement.

HY-2A Satellite first mockup
First mock-up of the HY-2A satellite