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A Library for Handling
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Description:
This routine sets the reference position (see attributes
RefRA and
RefDec) using
axis values (in radians) supplied within the celestial coordinate system represented by a
supplied
SkyFrame.
Invocation
CALL AST_SETREFPOS( THIS, FRM, LON, LAT, STATUS )
Arguments
THIS = INTEGER (Given)
FRM = INTEGER
(Given)
Pointer to the SkyFrame which defines the celestial coordinate system in which the
longitude and latitude values are supplied. If AST__NULL is supplied, then the supplied
longitude and latitude values are assumed to be FK5 J2000 RA and Dec values.
LON =
DOUBLE PRECISION (Given)
The longitude of the reference point, in the coordinate system
represented by the supplied SkyFrame (radians).
LAT = DOUBLE PRECISION (Given)
The latitude of the reference point, in the coordinate system represented by the supplied
SkyFrame (radians).
STATUS = INTEGER (Given and Returned)
The global status.
Copyright (C) 2021 East Asian Observatory
- ←Prev
- AST
A Library for Handling
World Coordinate
Systems
in Astronomy - Next→
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