Elish

Elish is a space probe that appears in 5 Centimeters per Second.

In 5 Centimeters per Second
Its parts are transported by train to the Minamitane launch facility. Elish is launched by the National Space Development Agency of Japan in October 1999. Its launching is watched by Takaki Tōno and Kanae Sumida.

In 2008, Takaki visits a convenience store and reads about its departure from the Solar System in a Space Magazine's issue.