This year’s meeting in the laser ranging community is held in Riga, Latvia, 2 to 5 October 2017.  The website has opened.  http://www.ilrstw2017.lu.lv/

今年は測地学会講演会 (http://www.geod.jpn.org/contents/meeting/128meeting.html) と開催期間が重なってしまいました．すみません，大坪はラトビアに出張予定です．