Academician Hans-Peter Röser passed away on December 08, 2015 after a serious illness. He was a Full Member of the International Academy of Astronautics (IAA) of the Section 1 on Basic Sciences (he was elected a corresponding member in 1998 and a full Member in 2003). Prof. Roeser was a member of the IAA Board of Trustees. As Scientific Activities Committee Vice-Chair for studies, he contributed significantly to the production of nearly 30 studies. From 1994 to 2002 he was director of the Institute of Space Sensor Systems at the German Aerospace Center - Berlin (DLR). He was director and head of the Institute of Space Systems (IRS) at Stuttgart University from 2002 until February 2014 and since then he has been deputy director of the institute. He was the founder of the German SOFIA Institute.
Roeser was the first German on the Kulper Airborne Observatory (KAO). Even the spaceport Baden-Württemberg (RZBW) at Stuttgart University, with about 170 employees one of the largest European scientific research institutions in space, was initiated by Hans-Peter Roeser. He was also the founder and mentor of the Stuttgart small satellite program, in which students can build small satellites. In university education, he formed the IRS a Europe-wide unique range of lectures, practicals and exercises in space technology and space applications.
Born in Polch, he studied physics at the Rheinische Friedrich-Wilhelms University in Bonn. In 1979 he received his doctorate in Applied Physics at the Rheinische Friedrich-Wilhelms University and the Max Planck Institute for Radio Astronomy in Bonn.
In honor of Hans-Peter Roeser the International Astronomical Union has named a minor planet on his name: (52308) Hanspeterröser.
He was also one of the founders of the IAA small satellite conference. We, the organizers of the IAA small satellite conference, and the Academy miss a great active scientist, a respected member and a friend.