code	description
airy	Airy1830
APL4.9	Appl.Physics.1965
NWL9D	NavalWeaponsLab.
mod airy	Modi_edAiry
andrae	Andrae1876(Den.)
aust SA	AustralianNatl&S.Amer.1969
GRS67	GRS67(IUGG1967)
bessel	Bessel1841
bess nam	Bessel1841(Namibia)
clrk66	Clarke1866
clrk80	Clarke1880mod.
CPM	Comm.desPoidsetMesures1799
delmbr	Delambre1810(Belgium)
engelis	Engelis1985
evrst30	Everest1830
evrst48	Everest1948
evrst56	Everest1956
evrst69	Everest1969
evrstSS	Everest(Sabah&Sarawak)
fschr60	Fischer(MercuryDatum)1960
fschr60m	Modi_edFischer1960
fschr68	Fischer1968
helmert	Helmert1906
hough	Hough
intl	International1909(Hayford)
krass	Krassovsky
kaula	Kaula1961
MERIT	MERIT1983
SGS85	SGS85
GRS80	GRS1980(IUGG)
IAU76	IAU1976
lerch	Lerch1979
mprts	Maupertius1738
new intl	NewInternational1967
plessis	Plessis1817(France)
SEasia	SoutheastAsia
walbeck	Walbeck
WGS60	WGS60
WGS66	WGS66
WGS72	WGS72
WGS84	WGS84