ちきゅうかんそく 地球観測 LinksSentence search for 地球観測Sentence search for ちきゅうかんそくKanji details for 地, 球, 観 and 測Edit in JMdict Noun, used as a prefix1. earth observation (satellite, platform, etc.)See also 地球観測衛星 ちきゅうかんそくえいせい Discussions Log in to talk about this word.