Dtm: Set Reference Datum - ashtech DG16 Reference Manual

DTM: Set Reference Datum

$PASHS,DTM,UDD
This commands allow you to select a user-defined datum type to use as a reference
for position computations and measurements. Parameters for the user-defined
datum are entered with the $PASHS,UDD command described on page 170.
$PASHS,DTM,s1
This command selects one of two datum types to be used as a reference for position
computations and measurements; s1 specifies the datum type:
A 3 character string that defines a particular datum
USR (User-Defined Datum— Parameters for user-defined datum are entered
with the $PASHS,UDD command described on page 170.
Table 6.15 lists the available predefined datums and associated reference
ellipsoids.
Table 6.15. Predefined Datums and Associated Reference Ellipsoids
Reference
Datum ID
Ellipsoid
ARF Clarke 1880
ARS Clarke 1880
AUA Australian
National
AUG Australian
National
BOO International 1924 307, 304, -318
CAI International 1924 -148, 136, 90
CAP Clarke 1880
CGE Clarke 1880
CHI International 1924 175, -38, 113
CHU International 1924 -134, 229, -29
COA International 1924 -206, 172, -6
EUA International 1924 -87, -96, -120
EUE International 1924 -104, -101, -140
106
Offset in meters
(dX,dY,dZ)
-143, -90, -294 ARC 1950 (Botswana, Lesotho, Malawi,
Swaziland, Zaire, Zambia, Zimbabwe
-160, -8, -300 ARC 1960 (Kenya, Tanzania)
-133, -48, 148 ANS66 Australian Geodetic Datum 1966
(Australia, Tasmania Island)
-134, -48, 149 ANS84 Australian Geodetic Datum 1984
(Australia, Tasmania Island)
Bogota, Bogota Observatory (Columbia)
Campo, S. American Campo Inchauspe
(Argentina)
-136, -108, -292 Cape (South Africa)
-263, 6, 431 Carthage (Tunisia)
Chatham 1971 (Chatham, New Zealand)
S. American Chua Astro (Paraguay)
S. American Corrego Alegre (Brazil)
European 1950 (Western Europe: Netherlands,
Austria, France, F.R. of Germany, Switzerland,
Denmark)
European 1950 (Cyprus)
DG14 and DG16 Board & Sensor Reference Manual
Datum Description