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# This describes the currently available catalog definition entries
# available and the format.
# Comments begining with '#' are ignored.
# Order of lines determines order in catalog.
# Case is ignored though labels in catalog will be as given in file.
ACE_NAME [OPTIONAL USER NAME FOR CATALOG]
# There are a few functions currently available.
MAG(ACE_NAME)
APFLUX(radius_in_pixels)
MAG(APFLUX(radius_in_pixels))
# Basic quantities.
NUM Object number
PNUM Parent number (0 if original detection)
NPIX Number of pixels
NDETECT Number of detected pixels (before growing)
FLAGS Flags (currently on M for multiple object)
# Fluxes
FLUX Isophotal flux
FRACFLUX Apportioned flux (TOTMAG)
APFLUX(radius) Aperture fluxes (radius in pixels)
SKY Mean sky
PEAK Peak pixel value above sky
ISIGAVG Average (I - sky) / sig
ISIGMAX Maximum (I - sky) / sig
# Positions
WX X world coordinate (requires WCS in header)
WY Y world coordinate (requires WCS in header)
X1 X centroid (pixels)
Y1 Y centroid (pixels)
XAP X aperture coordinate (centroid initially then not changed)
YAP Y aperture coordinate (centroid initially then not changed)
XMIN Minimum X (pixels)
XMAX Maxium X (pixels)
YMIN Minimum Y (pixels)
YMAX Maxium Y (pixels)
# Miscellaneous
SIG Mean sky sigma
FRAC Apportioned fraction
X2 X 2nd moment (pixels)
Y2 Y 2nd moment (pixels)
XY X 2nd cross moment (pixels)
# Derived quantities.
A Semimajor axis
B Semiminor axis
THETA Position angle (degrees)
ELONG Elongation = A/B
ELLIP Ellipticity = 1 - B/A
R Second moment radius (pixels)
CXX Second moment ellipse (pixels)
CYY Second moment ellipse (pixels)
CXY Second moment ellipse (pixels)
# Error estimates.
FLUXERR Error in flux
XERR Error in X centroid (pixels)
YERR Error in Y centroid (pixels)
AERR Error in A
BERR Error in B
THETAERR Error in THETA (degrees)
CXXERR Error in CXX (pixels)
CYYERR Error in CYY (pixels)
CXYERR Error in CXY (pixels)
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