satellite system (scribd.com) Jonathan's space report No. 554 (2005-09-24) notes on POPPY payloads External links Poppy program press release Poppy program Fact sheet Gunter's Space Page - information on Poppy 20in version, 24in version, multifaceted version Space.com news article 1962 in spaceflight 1963 in spaceflight 1971 in spaceflight National Reconnaissance Office satellites Military equipment introduced in the 1960s