Study of high-energy cosmic ray modulation and other topics in interplanetary and interstellar space. Various kinds of short-term experiments. Many guests, including Professor Hiroyuki Yoshikawa, president of the university of Tokyo, delivered congratulatory addresses. More than 100 persons attended to the celebration. Norikura Observatory in summer SnoCat Viewing from the southern side of the Norikura Observatory.
Gas is thick.
Snow remains in Sep. Alpine plants.