The Mercury transit event across the Sun that took place in the morning of 9 November 2006 JST was successfully observed in great detail with the three telescope instruments aboard Hinode satellite. Panels below show images from Hinode for the episode around the contact of Marcury to the solar disk (i.e., around first and second contacts).
More: http://www.isas.jaxa.jp/e/snews/2006/1109.shtml