Figure 7.2. Graphs of the change in telemetric parameters, a. contact sensor 1; b. contact sensor 2; c. linkage sensor; d. degrees; e. seconds. velocity of rotation; to do this, additional telemetric information is used on angular velocities and overloads arising due to the interaction of the spacecraft. Figure 7.2 shows typical graphs of the change in telemetric parameters during docking of a Soyuz craft with the Salyut station. The basic parameters of initial conditions determined from this data using the described method arc; . The results of examination and photographing of the traces left by the head of the rod on the receiving cone confirmed the processing of these measurements; photography was done by the cosmonauts after docking and opening of the hatches of the transition tunnel. Telemetric measurements, which are fixed in real time with a high degree of accuracy, are also made of such parameters as the displacement of the shock absorbers, angular velocities, and loads, and this makes it possible to reproduce the work of not only docking device mechanisms, but also other systems which affect the docking process. For example, the operation of the Soyuz APDA and the action of the Apollo spacecraft control system in the second test docking on July 19, 1975 (Figure 7.3) were reproduced in detail. The picture of the process was
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