EO·Atlas
HY-2D Radar Altimeter
Compiled from public sources on 2026-06-16. Not independently verified by China Academy of Space Technology.
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Dual-frequency radar altimeter flown on HY-2D.
HY-2D Radar Altimeter is a dual-frequency active radar altimeter in the HY-2D microwave payload suite, flown on HY-2D, also known as Hai Yang 2D.[1][2][3] It operates at Ku-band 13.58 GHz and C-band 5.25 GHz.[1][3] The component supports sea-surface-height and ocean-dynamics observation within the HY-2 series microwave mission objective.[2][4] Its pulse-limited footprint is 2 km, with nadir ranging measurement accuracy of 2 cm.[3] Radar altimetry is demonstrated on HY-2D, with ALT active from May 2021 and expected end of life at or after 2026.[1]
Pricing not publicly listed by operator
Compositional position
- [1]HY-2D satellite, National Satellite Ocean Application Serviceagency doc2026-06-16
- [2]HY-2D satellite launch news, National Satellite Ocean Application Serviceoperator press2026-06-16
- [3]AVISO+ mission page: HY-2Dagency doc2026-06-16
- [4]WMO OSCAR satellite record: HY-2Dagency doc2026-06-16