There
were a lot of firsts involved when Telstar
1 was launched a top of a Thor-Delta
rocket from Cape Canaveral, Florida
on July 10, 1962.
It
was the first active telecommunications satellite,
capable of relaying television broadcasts, bundled telephone calls,
and fax images.
Echo I, launched by the NASA in 1960 had been a glorified weather balloon—a Mylar inflated sphere off which microwave signals could be bounced from
one Earth station to another. Although millions of Americans, me included,
spent hours watching darkened skies for the passage of the gleaming object in
orbit, Echo’s usefulness as a communications device was more symbolic than
real.
Telstar,
developed jointly by American Bell Labs,
the British General Post Office,
and the French National PTT (Post,
Telegraph & Telecom Office) was intended to provide an active and practical link across the Atlantic Ocean for multiple
communications uses.
Telstar
was also the first privately (or public/private because of the original
consortium’s socialized European partners)
satellite and NASA was paid for its launching facilities, rocket, and support system.
Built
at Bell Labs, the satellite resembled a small ball. It was only was only 34.5 inches in diameter
and weighed 177 pounds—about the maximum size for the limited lift capacity of
the NASA’s Delta rockets. It was covered with several innovative solar cells which generated a paltry 14
watts of power. The solar cells were a breakthrough. So were the transistors which replaced most of the bulky tubes for radio communications
and the traveling-wave tube
which helped amplify weak radio signals on their return to earth. All in all it was a technological marvel.
The satellite was placed in a medium altitude elliptical orbit completed once every 2 hours and
37 minutes. That meant that Telstar
could only be used to relay communications across the Atlantic for about 20
minutes out of every orbit. Subsequent communications
satellites were launched into geosynchronous
orbit much higher but stationary in relationship to a point on earth making
them continuously operable.
A Thor/Delta rocket blasts off from Cape Canaveral with Telstar I . |
There
were launch jitters associated with
the Delta rocket, which was less than totally reliable. A number of launches had ended in spectacular failure. But Telstar reached orbit successfully.
On
July 11 test television images of an
American Flag outside the Andover, Maine Earth Station were transmitted to a French station at Pleumeur-Bodou.
Public service was inaugurated
in a highly publicized broadcast involving Eurovision
on the continent, all three American
television networks, and the Canadian
Broadcasting Company. Walter Cronkite, an
enthusiastic booster of the space
program, and NBC’s Chet Huntley anchored from New York while the BBC’s Richard Dimbleby did the honors from Brussels.
E |
The podium was empty. President Kennedy was not ready when the Telstar hook-up was achieved early. Engineers scrambled and put up a Cubs game from Wrigley Field in his place. |
Following
live shots of the Statue of Liberty and
the Eifel Tower, President John F. Kennedy was slated to
make introductory remarks. But the
system acquired satellite connection
early and Kennedy was not ready. Instead
viewers were suddenly watching an in-progress
game between the Philadelphia
Phillies and Chicago Cubs at Wrigley Field. Mystified Europeans only got to see one play before the broadcast continued
with a segment from Washington, D.C., where
Kennedy was conducting a news conference
and answering a question about the value of the Dollar. Segments from Cape Canaveral, Quebec, and Stratford, Ontario rounded out the North American portion of the
program.
Later
in the evening, Telstar began relaying telephone calls and fax messages.
Public
excitement was high. The satellite was
featured on the covers of popular magazines, and the subject of
many newspaper articles. For a while an American news broadcast that
did not show at least a snippet of news originating in Europe would not have
been complete.
The British band The Tornados's guitar driven instrumental hit was an example of the cultural fascination with space technology. |
The Tornadoes became first
English pop group to score a Number 1 hit in the U.S. with their instrumental Telstar. The song was also covered successfully in this country by The Ventures—the version I best remember in Cheyenne—and Bobby Vinton.
But
Telstar’s glory days as the poster child of President Kennedy’s “peaceful uses
of outer space” were doomed. Just one
day before the launch the U.S. tested Starfish
Prime, a high-altitude nuclear bomb
which energized the Van Allen Belt
in which Telstar was sent into orbit. In
Cold War tit-for-tat the Soviets exploded a similar weapon in
October. The huge increase in radiation over what designers had
expected overwhelmed the satellite’s transistors and it failed in
December. Engineers were able to
re-start it again in January 1963, but it failed again permanently in February
It
was replaced by a nearly identical Telstar
2 in May 1963. Soon other
communications satellites including two RCA
Relay units and two Syncom units from the Hughes Aircraft Company were also in
service. Syncom 2 was the first geosynchronous satellite and
its successor, Syncom 3,
broadcasted pictures live from the 1964 Summer
Olympics from Tokyo.
By
the way, NASA reports that both Telstar 1 and 2 continue to orbit the Earth,
just two more pieces of cold, dead space junk.
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