Delta 1604 article 579/D090 made the first flight of the Delta 1000 series and successfully launched Explorer 47, also called IMP-H, into a highly elliptical magnetospheric orbit on 23 September 1972.
Delta 1604 article 579/D090 made the first flight of the Delta 1000 series and successfully launched Explorer 47, also called IMP-H, into a highly elliptical magnetospheric orbit on 23 September 1972.