The y co-ordinate of the center of the ellipse describing the solar image. N2 is the second dimension of the image. Units are pixels. The semi-minor axis of the ellipse descibing the solar image. N1,N2 are the dimensions of the image.
Units are pixels.
The semi-major axis of the ellipse descibing the solar image. N1,N2 are the dimensions of the image. Units are pixels. The ellipse rotation angle. A counter-clockwise rotation of the y axis to the ellipse major axis is a positive angle.