The coordinates of the center of the solar disk are regularly measured in the four wavelengths using a precise limb-fitting algorithm. The X and Y pointing coordinates in the four quadrants (crosses) are plotted as a function of time in the figures below. The red lines correspond to Fourier series representations with 48 components. These parametrisations are returned by the eit_point.pro function. These plots are updated every few months.
1 7 1 |
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1 9 5 |
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2 8 4 |
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3 0 4 |
Last revised: Friday October 30, 2015 11:56 AM - F. Auchère