John F. Kennedy Space Center. NASA’s thrust-augmented Delta (TAD) lifts off pad 17A at Cape Kennedy, Florida carrying the Syncom Satellite into a 22,300 mile orbit above the Earth. Unused, undated NASA postcard, c1964.
Syncom 3 was the first geostationary communication satellite, launched on August 19, 1964 with the Delta D #25 launch vehicle from Cape Canaveral. The satellite, in orbit near the International Date Line, had the addition of a wideband channel for television and was used to telecast the 1964 Summer Olympics in Tokyo to the United States. Delta D, aka Thrust Augmented Delta was a Delta C rocket with the Thrust Augmented Thor core plus three Castor 1 boosters. (Wikipedia)

John F. Kennedy Space Center. NASA’s thrust-augmented Delta (TAD) lifts off pad 17A at Cape Kennedy, Florida carrying the Syncom Satellite into a 22,300 mile orbit above the Earth. Unused, undated NASA postcard, c1964.

Syncom 3 was the first geostationary communication satellite, launched on August 19, 1964 with the Delta D #25 launch vehicle from Cape Canaveral. The satellite, in orbit near the International Date Line, had the addition of a wideband channel for television and was used to telecast the 1964 Summer Olympics in Tokyo to the United States. Delta D, aka Thrust Augmented Delta was a Delta C rocket with the Thrust Augmented Thor core plus three Castor 1 boosters. (Wikipedia)