You will receive a copy of the spectrograms made from your data. Your data will be incorporated in the data analysis report article in the Journal . Ariel is a plasma generator and operates for 5 minutes, alternating between axes. The obvious need to know what time is represented in each part of the tape, 2. also to provide a means of synchronizing the tape with actual time. Battery operated recorders tend to run slower as the batteries wear out.
Some recorders run fast or slow because of the particular motor being used.
This has the effect of adjusting the frequencies on the spectrogram to the proper values since incorrect tape speed on the data recorder will cause the frequencies to be out of position. Try to minimize the interruption to the data flow when putting on the time marks. Also, put the time marks on at least as often as is called for by the instructions. It is better to have more time marks than are called for than to have too few. The purpose of the data log is to record the contents of the tape.