On 2nd July 2019, Reinhard DK5LA made the first-ever 2-way QSO via the Lunar Orbiting Transponder DSLWP-B.
The QSO between the Club station of the Harbin Institute of Technology, BY2HIT operated by Wei, BG2BHC and DK5LA took place on 1st July between 05:51 and 07:28 UTC! Congrats!!!
More Information - https://destevez.net/2019/07/analysis-of-dslwp-b-eclipse-test-run-again/