Although space enables man-made objects to move at fast speeds over great distances in near perpetual motion, everything that moves in space is a captive of Kepler’s laws. Once a satellite is in undisturbed orbit it will turn up precisely on time in its next predicted position above the earth. Manoeuvring can change the height or the plane of the orbit but at the end of the manoeuvre the satellite — unless it is brought back into the atmosphere — settles once again into a predictable orbit. So although the exact purposes of some of the earth satellites were not always known in the years before the war, space was very ‘open’ and all the satellites, old booster rockets and other debris orbiting the world, were monitored, numbered and registered in computers at scientific agencies like the Royal Aircraft Establishment at Farnborough, England. Indeed, under a widely accepted United Nations convention (with the USSR among its signatories), countries were obliged to notify the launch and leading parameters of every satellite. Within broad limits this was done.
Satellites can be seen by the naked eye at night when they reflect the sun’s light, but more scientifically they are tracked by telescopes, radar, and electronic means. Space activity is so open to observation and deduction that the news that Plesetsk, in the north of the USSR, was the Soviet Union’s major launch complex first came to the knowledge of the world from Kettering Boys’ School in England. A group at the school under the leadership of an enthusiastic science master kept a continuous watch on space and periodically released details of earth satellites that had newly arrived in orbit.
Among many advantages that flowed from pre-war space programmes was the acceptance by the superpowers (because of its scientific inevitability) of the concept of ‘open space’. This removed one of the difficulties in the strategic arms limitation and reduction negotiations (SALT and START), in that numbers of launchers and missile sites could be so easily verified from space reconnaissance. Verification by ‘national technical means’ was the euphemism adopted in protracted negotiations over satellite surveillance. Both sides knew exactly what it meant. Such reconnaissance had its limits: it could not count reserve missiles kept concealed, nor could it penetrate the secrets of the multiple re-entry vehicles within the nosecones of the missiles themselves.
Man’s activities in space in peacetime, therefore, tended to be stable, both scientifically and politically. Indeed there was considerable co-operation. Sometimes this was even political, as when the USSR advised the United States that South Africa looked to be preparing for a nuclear test in the Kalahari Desert. This intelligence was extracted from Soviet
Although the methods chosen by the USA and USSR to get into space differed widely in technical ways, the comfortable feeling generally enjoyed by the uninitiated in the West was that the USA must surely be in the lead. This was not obviously so, and in different respects each was ahead of the other. The US put an enormous effort into the
Telemetry enables information gained by optical and electronic sensors in space to be transmitted instantly to earth. In the war these systems were jammed, partially or completely, by both sides, using earth and space jamming stations. Space photography, which involved complicated systems of ejecting the film and sending it back to earth for processing and interpretation, was fine in peacetime but took too long in war. On the other hand, the transmission earthwards of its product in this way could not be jammed. The satellite communications system, which had been well established before the war, was invaluable in keeping political and military centres in touch and in the control of a war moving at an unprecedented pace. But here too the effectiveness of the system was degraded by jamming and other interference.
