Pre-launch name of the Japanese satellite Asca.
Collins Dictionary of Astronomy © Market House Books Ltd, 2006
References in periodicals archive ?
Known as Astro-D until launch, when it will be renamed, the observatory is expected to operate for five years.
Astro-D will also gather data to "weigh" the mass of suspected black holes, says White.
In addition, Astro-D can study X-ray emissions in fainter, more distant collections of galaxies, White says.