Home2021 Treaties and Agreements ...Japan (21-618.1) – Agreement Concerning Cooperation on the Launch and Data Exchange for Space Satellites hide Japan (21-618.1) – Agreement Concerning Cooperation on the Launch and Data Exchange for Space Satellites TIAS Office of Treaty Affairs June 18, 2021 Space: Satellites Effected by exchange of notes at Washington June 18, 2021; entered into force June 18, 2021. Download Agreement [292 KB] Tags Japan Space Treaties