Coordinate Frames

CASA supported spatial coordinate frames

CASA supported spatial coordinate frames:

  

Name Description
J2000 mean equator and equinox at J2000.0 (FK5)
JNAT geocentric natural frame
JMEAN mean equator and equinox at frame epoch
JTRUE true equator and equinox at frame epoch
APP apparent geocentric position
B1950 mean epoch and ecliptic at B1950.0.
B1950_VLA mean epoch (1979.9) and ecliptic at B1950.0
BMEAN mean equator and equinox at frame epoch
BTRUE true equator and equinox at frame epoch
GALACTIC Galactic coordinates
HADEC topocentric HA and declination
AZEL topocentric Azimuth and Elevation (N through E)
AZELSW topocentric Azimuth and Elevation (S through W)
AZELNE topocentric Azimuth and Elevation (N through E)
AZELGEO geodetic Azimuth and Elevation (N through E)
AZELSWGEO geodetic Azimuth and Elevation (S through W)
AZELNEGEO geodetic Azimuth and Elevation (N through E)
ECLIPTC ecliptic for J2000 equator and equinox
MECLIPTIC ecliptic for mean equator of date
TECLIPTIC ecliptic for true equator of date
SUPERGAL supergalactic coordinates
ITRF coordinates wrt ITRF Earth frame
TOPO apparent topocentric position
ICRS International Celestial reference system