Some SLA routines migrate directly to SOFA. Simple PAL wrappers are made available using the SLA name but new code should use the SOFA variant directly. The PAL routines should not be called internally by other PAL routines. Daf2r => Af2a Dav2m => Rv2m Dcc2s => C2s Dcs2c => S2c Dd2tf => D2tf Dimxv => Trxp Djcl => Jd2cal Dmxm => Rxr Dmxv => Rxp Dm2av => Rm2v Dranrm => Anp Drange => Anpm Dsep => Seps Dsepv => Sepp Dtf2d => Tf2d Dtf2r => Tf2a Dvdv => Pdp Dvn => Pn Dvxv => Pxp Epb => Epb Epb2d => Epb2jd Epj => Epj Epj2d => Epj2jd Eqeqx => Ee06a Fk5hz => Fk5hz Gmst => Gmst06 Hfk5z => Hfk5z Some SLA routines are close to the same but have different arguments so a PAL routine is provided although it is probably best to port software to the SOFA variant: slaDat =>palDat => iauDat slaGeoc has different arguments and uses the WGS84 model. The code is not quite one-to-one.