The Data Systems for Explorer VI and Pioneer V

The systems for acquisition and reduction of telemetry data for 1959 Delta (Explorer VI) and 1960 Alpha (Pioneer V) are described. These include an analog and a digital system in Explorer VI and a digital system in Pioneer V. The discussion covers digitization of data in the payloads, methods of handling and recording data on the ground, reduction techniques, and the procedures used to disengage signal from noise during periods when the SNR was low.