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LES (Lincoln Experimental Satellite)





LES 9
LES 9
Spacecraft that were designed and built by the Massachusetts Institute of Technology Lincoln Laboratory as part of the Lab's Air Force-sponsored program in space communications. Their goal was to test realistically, in orbit, new devices and techniques developed for possible use in satellite communication systems. LES-5 was designed to aid in the development of a tactical satellite communication system for the Department of Defense and was used for the first-ever satellite communications among Army, Navy, and Air Force units. All spacecraft in the LES series were launched from Cape Canaveral.


spacecraft launch date launch vehicle orbit mass (kg)
LES 1 Feb. 11, 1965 Titan IIIA 2,783 × 2,809 km × 32.1° 31
LES 2 May 6, 1965 Titan IIIA 2,771 × 14,810 km × 32.2° 37
LES 3 Dec. 21, 1965 Titan IIIC 267 × 4,829 km × 26.5° 16
LES 4 " " 189 × 33,632 km × 26.6° 52
LES 5 Jul. 1, 1967 Titan IIIC 33,188 × 33,618 km × 11.6° 194
LES 6 Sep. 26, 1968 Titan IIIC 35,771 × 35,847 km × 13.0° 163
LES 8 Mar. 15, 1976 Titan IIIC 35,687 × 35,886 km × 17.0° 454
LES 9 " " 35,745 × 35,825 km × 17.0° 454


Related category

   • SATELLITES AND SPACE PROBES