The measured offsets were initially corrected for such known effects as the nutation, UT1 – UTC difference, polar motion and aberration, and then a few simple statistics were calculated. The results are presented below in the form of figures.

Fig. 1: Pointing errors as a function of azimuth. Note the z-coordinate (zenith distance) errors being displayed shifted by -0.015°. The standard deviations and means given in brackets at the figure top are those found in Autumn 2006 measurements.

Fig. 2: The same (as in Fig. 1) pointing errors but plotted as a function of elevation (note that here no shift has been applied to zenith distance data).

One notes an obvious systematic error of about 0.01° in average azimuth coordinate and the standard deviation of the same data that are more than twice as large as just a year earlier. There seem to be present also other, although less prenounced, systematic features in all the distributions.