Timothy Lennart "Tim" Kopra (born April 9, 1963) is an American engineer, a Colonel in the United States Army, and a retired NASA astronaut.These ancestors include Johann Philipp and Anna Catharina Finckel, who were members of the first group of Palatine Germans who settled in Germantown in the Hudson Valley in 1710.In 1981, Kopra was photographed singing on stage and playing trombone for Austin, Texas punk funk band Big Boys.Kopra was also assigned technical duties in the Space Station Branch of the Astronaut Office, where his primary focus was the testing of crew interfaces for two future ISS modules as well as the implementation of support computers and operational Local Area Network on International Space Station.During a spacewalk on January 15, 2016, Kopra's spacesuit began to leak water into his helmet causing the walk to be cut short.