「みちびき」後継機打ち上げ　日本版ＧＰＳ、Ｈ２Ａで―鹿児島

　三菱重工業は２６日午前１１時１９分、日本版の全地球測位システム（ＧＰＳ）実現を目指す測位衛星「みちびき」初号機の後継機を、鹿児島県・種子島宇宙センターからＨ２Ａロケット４４号機で打ち上げた。衛星は約２８分後にロケットから分離、予定の軌道に投入され、打ち上げは成功した。（2021/10/26-12:03）

An additional Michibiki satellite aimed at creating a Japanese version of the U.S. Global Positioning System was launched successfully Tuesday.
   Mitsubishi Heavy Industries Ltd. launched an H-2A rocket carrying the new satellite succeeding the first Michibiki from the Tanegashima Space Center in Kagoshima Prefecture, southwestern Japan, at 11:19 a.m. (2:19 a.m. GMT). The new Michibiki was separated from the rocket about 28 minutes later and then entered its target orbit.
   Four Michibiki satellites are currently in operation for the purpose of improving the accuracy of location information offered by car navigation systems and smartphones, which receive data from the satellites.
   The satellites, operated by the Cabinet Office, travel in quasi-zenith orbits almost directly above Japan. The Michibiki system is designed to complement the GPS, helping the provision of location information with accuracy of a few centimeters. The first Michibiki, launched in 2010, has exceeded its design life.
   The Japanese government seeks to complete in fiscal 2023 the seven-satellite Michibiki system, which would enable positioning around the clock even if the U.S. GPS stops functioning.