Forty years ago, a Delta D launcher took off
from Cape Canaveral with the 85 pound
Intelsat
I, the first commercial telecommunications satellite, headed
for geosynchronous orbit 22,300 miles above the Atlantic Ocean.
Capacity: one televison channel
or 240 voice circuits.
For a while, AT&T planned a a privately owned satellite system
of between 50 and 120 satellies orbiting 7,000 miles up. Bell Labs
used AT&T money to build the first private spacecraft,
Telstar
1, and I remember the 'Live via satellite' words at the bottom
of the screen from the July 23, 1962, event. But the
Communications Satellite Act of 1962 (pdf file) pushed by
President Kennedy prohibited private communications satellites,
instead setting up the Communications Satellite Corporation or
COMSAT to 'plan, initiate, construct, own, manage, and operate
itself or in conjunction with foreign governments or business
entities a commercial communications satellite system.' COMSAT
spearheaded the formation of the International Telecommunications
Satellite Organization, which operated international communications
satellites.
Global coverage requires three satellites.

Delta D (Thrust Augmented) launches Early Bird

Three geosynch satellites cover the Earth


COMSAT In Orbit Test software running in CDE (Solaris?
anyone?)