hadec_to_azel

ska_sdp_func_python.util.coordinate_support.hadec_to_azel(ha, dec, latitude)

Convert HA Dec to Az El.

TMS Appendix 4.1

\[sinel = sinlat sindec + coslat cosdec cosha cosel cosaz = coslat sindec - sinlat cosdec cosha cosel sinaz = - cosdec sinha\]

Parameters:

• ha – Hour angle (radians)

• dec – Declination (radians)

• latitude – Site latitude (radians)

Returns:

az, el