SAX (Satellite Astronomia Raggio-X) is the X-Ray Astronomy Satellite selected by the Italian National Space Plan for inclusion in the Science Plan. The objective of the mission is to perform spectroscopic and time variability studies of celestial X-ray sources in the energy band from 1 to 200 keV. including an all-sky monitoring investigation of transients in the 2-30 keV.energy range.
The Atlas I was a US expendable launch system manufactured by General Dynamics in the 1990s to launch a variety of satellites.