Congratulations to Hideo Kambayashi, JH3XCU, for working 73 different stations on AO-73 since September 1, 2014. Notably, he is the first to work all 73 different stations using CW.
For more information on the award see
Paul Stoetzer, N8HM
AO-73 was launched on November 21, 2013 and is the first spacecraft to have a primary mission of educational outreach to schools and the smallest ever satellite to carry a linear (SSB/CW) transponder for radio amateurs.