Home2008 Treaties and Agreements ...Japan (08-1219) – Agreement for Cooperation of Development and Operations Activity of the Global Precipitation Measurement (GOP) Mission hide Japan (08-1219) – Agreement for Cooperation of Development and Operations Activity of the Global Precipitation Measurement (GOP) Mission TIAS Office of Treaty Affairs December 19, 2008 Space Cooperation: Global Precipitation Measurement Mission Agreement effected by exchange of notes at Washington December 19, 2008; entered into force December 19, 2008. Download attachment [270 KB] Tags International Law, Treaties, and Agreements Japan Space