claim: As of today,JAXA shows that we have more ice than any time on this date for the past 8 years of Aqua satellite measurement for this AMSRE dataset."
evidence: Starting from 1979 with Hakucho (CORSA-b), for nearly two decades Japan had achieved continuous observation with its Hinotori, Tenma, Ginga and ASCA (ASTRO-A through D) x-ray observation satellites.