Return the magnitudes and associated errors from fluxes and flux error values
flux (np.ndarray[float, ndim=1]) – array of fluxes
fluxerr (np.ndarray[float, ndim=1]) – array of flux errors
mag (np.ndarray[float, ndim=1]) – array of magnitudes
err (np.ndarray[float, ndim=1]) – array of magnitude errors
fluxErrTomag()
fluxToMag
magToFlux