Astro-G

ASTRO-G (also known as VSOP-2, and very rarely called VSOP-B) was a planned radio telescope satellite by JAXA. It was expected to be launched into elliptic orbit around Earth (apogee height 25,000 km, perigee height 1,000 km).[1]

  1. ^ 電波天文衛星「アストロG」 [Radio astronomy satellite "Astro G"]. Yomiuri Shimbun (in Japanese). May 10, 2007. Archived from the original on May 13, 2007.