block_effelsberg

pyoof.telgeometry.block_effelsberg(alpha=<Quantity 20. deg>)[source]

Truncation in the aperture (amplitude) distribution, \(B(x, y)\), given by the telescope’s structure; i.e. support legs, sub-reflector and shade effect as seen from the secondary focus of the Effelsberg telescope.

Parameters
xQuantity

Grid value for the \(x\) variable in length units.

yQuantity

Grid value for the \(y\) variable in length units.

alphaQuantity

Inclination of the shade effect done by the support legs on the aperture plane, a larger angle will have a broader shade. It is measured in angle units.

Returns
block_funcfunction

Aperture (amplitude) distribution truncation, \(B(x, y)\). Values that are zero correspond to blocked values.