fov_to_sky

gammapy.utils.coordinates.fov_to_sky(lon, lat, lon_pnt, lat_pnt)

Transform field-of-view coordinates to sky coordinates.

Parameters

lon, latQuantity

Field-of-view coordinate to be transformed

lon_pnt, lat_pntQuantity

Coordinate specifying the pointing position (i.e. the center of the field of view)

Returns

lon_t, lat_tQuantity

Transformed sky coordinate