Explorer 10Delta DM-19 United States Air Force Launch Status Success Sat ยท Mar 25th, 1961 10:17 AM EST Location Space Launch Complex 17A Cape Canaveral, FL, USA 209 launches have been at this location. Rocket Delta DM-19 Length: 18.42 meters Diameter: 2.44 meters First Launched: May 13, 1960 The Delta DM-19, or Thor-Delta was an early launch system used for 12 launches in the early ’60s in the US. The first stage was a Thor missile with the second stage being the Delta, hence the name Thor-Delta. Of 12 flights, it failed only once and put 11 satellites into orbit between 1960 and 62. The Delta DM-19 rocket has been launched a total of 3 times with 3 successful and 0 failed launches. Agency United States Air Force Type: Government Abbreviation: USAF Administration: Founded: Launchers: Spacecraft: Country: USA View Rocket Launch Schedule