Thor-Delta N article 528/D058 made the first flight of the two-stage N configuration and successfully launched ESSA 7 into a Sun-synchronous operational meteorological orbit on 16 August 1968.
Thor-Delta N article 528/D058 made the first flight of the two-stage N configuration and successfully launched ESSA 7 into a Sun-synchronous operational meteorological orbit on 16 August 1968.