Program 661A American ion engine technology satellite. Study 1961. In November of 1961, Electro-Optical Systems was awarded a contract by the U. S. Air Force to develop a 8.9 mN, cesium-contact ionization IPS for three sub-orbital flight tests. |
Snapshot American ion engine technology satellite. Carried SNAP-9A nuclear power source. The on-board reactor provided electrical power for a 2.2-lb ion engine. Experimental satellite operated by US Air Force, USA. Launched 1965. |
SERT American ion engine technology satellite. Electric ion engine tests. Technology satellite built by NASA's Lewis Research Center, Fairchild (payload), Lockheed (Agena stage) for NASA's Lewis Research Center, USA. Launched 1970. |
Plazma-A Russian ion engine technology satellite. In 1987 two experimental Plazma-A satellites (Cosmos 1818 and 1867) were launched with new-generation Topaz reactors. |
ARGOS American ion engine technology satellite. ARGOS was the USAF Space Test Program P91-1 technology satellite by Boeing/Seal Beach. Experimental satellite built by Rockwell for USAF STP (Space Test Program), USA. Launched 1999. |