Lecture 9


9.1. See how ephemerides of Sun can be calculated and plotted or even used
      to control a telescope. Change parameter in lines 24-28 for Cairo
      Change script to plot data from the Moon.

9.2. See how data can be analyzed to get light curve, power spectral density and Allan time variance.
      load and run PSD_Allantime/PlotManyFITS_PSD_ALLAN.py
      Data contain an observation of 21cm backgound with interference from a GPS-satellite.
      In lines 166/167 we select the frequency channel 80 which contains a 'quiet' frequency.
      load and run the script and see the the plots
      Then change to the frequency channel where the satellites radiates 46 = 1227.4 MHz
      an run the script. Discuss the different plots.

9.3. This is an example on how to import images into scientific papers, e.g. MikTeX or LaTeX
