rotation_matrix_from_altaz

nyx.core.coordinates.rotation_matrix_from_altaz(az_rad, alt_rad)

Build rotation matrix from an AltAz pointing direction.

Parameters:

• az_rad (float) – Pointing direction in radians.

• alt_rad (float) – Pointing direction in radians.

Returns:

rotation

Return type:

ndarray, shape (3, 3)