Publications of Astronomical Society of Japan 75(3) 567-583 2023年3月 [査読有り]
We built a Ka-band dual-circular-polarization low-noise receiver for the Misasa 54 m parabola antenna in Misasa, Japan. The antenna is designed to be combined with a transmitter and receiver system at the X band (around 8 GHz) and simultaneously w...
A projectile accelerated by the Hayabusa2 Small Carry-on Impactor successfully produced an artificial impact crater with a final apparent diameter of 14.5 ± 0.8 m on the surface of the near-Earth asteroid 162173 Ryugu on April 5, 2019. At the time...
「あかつき」の長い旅路に寄り添ってきたのは,臼田宇宙空間観測所ばかりではない.米国航空宇宙局深宇宙ネットワーク(NASA Deep Space Network)という頼もしい仲間が,打上げから,金星軌道投入へ向けた軌道修正,そして軌道投入失敗の時も,その直後の「あかつき」探索も常に支えてきてくれた.「あかつき」に限らずNASA DSN支援は,我が国の深宇宙探査プログラムに深く結びついて,今では欠かせない要素である.「あかつき」の重要な運用局面に常にあったこのDSN支援を解説すると共に,翻っ...
JAXA has planned a light airplane ejected from a Mars orbiter for observing the residual magnetic fields near the surfaced and the exposed strata of Mars. An altimeter is indispensable to achieve the mission. It must be miniature and light weight ...