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.
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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