IMAGE (Imager for Magnetopause to Aurora Global Exploration) uses neutral atom, ultraviolet, and radio imaging techniques to identify the dominant mechanisms for injecting plasma into the magnetosphere on substorm and magnetic storm time scales, determine the directly driven response of the magnetosphere to solar wind changes; and, discover how and where magnetospheric plasmas are energized, transported, and subsequently lost during substorms and magnetic storms.
Delta II was an expendable launch system, originally designed and built by McDonnell Douglas. Delta II was part of the Delta rocket family and entered service in 1989. Delta II vehicles included the Delta 6000, and the two later Delta 7000 variants ("Light" and "Heavy"). The rocket flew its final mission ICESat-2 on 15 September 2018, earning the launch vehicle a streak of 100 successful missions in a row, with the last failure being GPS IIR-1 in 1997.