matvis.coordinates

Functions for converting coordinates.

Functions

altaz_to_enu(el, az)	Convert alt/az coordinates as given by Astropy, into ENU coordinates.
axis_angle_rotation_matrix(axis, angle)	Build rotation matrix via Rodrigues’ formula.
calc_coherency_rotation(ra, dec, alt, az, ...)	Compute the rotation matrix needed for time-dependent coherency calculation.
eci_to_enu_matrix(ha, lat)	3x3 transformation matrix to rotate ECI to ENU coordinates.
enu_to_az_za(enu_e, enu_n[, orientation, ...])	Convert angle cosines in ENU coordinates into azimuth and zenith angle.
enu_to_eci_matrix(ha, lat)	3x3 transformation matrix to rotate ENU to ECI coordinates.
equatorial_to_eci_coords(ra, dec, obstime, ...)	Convert RA and Dec coordinates into the ECI system used by matvis.
get_array_module(*x)	Return numpy as the array module.
phi_hat(theta, phi)	Return the unit vector phi_hat in Cartesian coords for spherical angles.
point_source_crd_eq(ra, dec)	Coordinate transform of source locations from equatorial to Cartesian.
spherical_basis_vector_rotation_matrix(...)	Get the rotation matrix for vectors in theta/phi basis to a new reference frame.
theta_hat(theta, phi)	Return the unit vector theta_hat in Cartesian coords for spherical angles.
vecs2rot(r1, r2)	Construct an axis-angle rotation matrix R that carries vector r1 to r2.