SYNOPSIS
yoda [options ...] FITS-file
DESCRIPTION
YODA 1.2.5 2004-10-06
YODA (Yet another Object Detection Application) is a software package
performing object detection, photometry and star-galaxy classification
on astronomical images.
--ap-transform <FLOATARRAY>
[1,0,0,1]
Linear transforamtion coefficients for apertures
--bg-bins <INT>
[25]
Number of bins in background histograms
-g, --bg-gridsize <INT>
[128]
Number of bins in background histograms
--bg-iter <FLAG>
[false]
Iterate background and rms estimation
-c, --class-output-cat <STRING>
[<Image>.class]
Name of classifier outpout file
-C, --classify <FLAG>
[false]
Perform classification
-M, --coords-cat <STRING>
[]
File with aperture centers for photometry (none: use coordinates
from master-cat)
--coords-columns <FLOATARRAY>
[2,3]
Column numbers of x and y coordinates in coords-cat file
-D, --detect <FLAG>
--dump-detection <FLAG>
[false]
Dump detection mask to disk
-A, --fixed-aper <FLOAT>
[0.0]
Fixed circular aperture diameter in pixels
--gain <FLOAT>
[0.0]
CCD gain in e-/ADU (0.0 for GAIN FITS keyword)
--gain-keyword <STRING>
[GAIN ]
FITS header keyword for GAIN
-h, --help <FLAG>
[false]
Print this help message and exit
--iraf-transform <FLAG>
[false]
Aperture lin. Tranformation in iraf format: xmag,ymag,xrot,yrot
-k, --kron-factor <FLOAT>
[2.5]
Size factor for Kron-like apertures
-m, --master-cat <STRING>
[]
File of yoda catalog of master image when performing photometry
(none: use objects from current detection pass; needed for aper-
ture geometry), and file containing photometry data when per-
forming classification (needed for sky value)
--maxsize <INT>
[100]
Maximum linear size of object
--min-aperture <FLOAT>
[2.0]
Radius of smallest possible kron aperture in pixels
Minimum number of consecutive pixels above threshold for object
detection
-P, --photometry <FLAG>
[false]
Perform aperture photometry
-p, --photometry-cat <STRING>
[<Image>.p]
Name of output photometry catalog
-T, --psf <FLAG>
[false]
Generate PSF template image from objects in image
-I, --psf-catalog <STRING>
[psf.cat]
Write catalog of automatically determined PSF objects to file
--psf-corelum <FLOAT>
[10.0]
Min core luminosity above detection isophote for PSF objects
-i, --psf-input-cat <STRING>
[]
Read catalog of objects for PSF estimation from file
--psf-input-file <STRING>
[]
File containing PSF template (none for internally generated tem-
plate)
--psf-maxasym <FLOAT>
[0.05]
Maximum asymmetry for PSF objects
--psf-minstars <INT>
[11]
Minimum number of objects to use in PSF estimation
--psf-output-file <STRING>
[<Image>.psf]
Saturation value of image
-s, --seeing <FLOAT>
[2.0]
FWHM of Gaussian convolution kernel in pixels
--sky-annulus <FLOATARRAY>
[5,3]
Distance from largest aperture and width of sky annulus. If 0,0
then the sky at each object's position is estimated by interpo-
lating the background image at the object's center.
--split-npixmin <INT>
[4]
Minimum number of pixels in splitted objects
--split-range <FLOATARRAY>
[0.01,0.8]
Minimum and maximum isophote in units of object maximum flux to
split at
--step-split <FLOAT>
[0.02]
Fractional increment in splitting isophote
-t, --threshold <FLOAT>
[3.0]
Threshold for object detection above local noise
-V, --version <FLAG>
[false]
Print version information and exit
-z, --zeropoint <FLOAT>
[23.5]
Magnitude zero-point
EXAMPLES
Detect objects in 'image.fits', write catalog to 'master.cat': yoda -D
-d master.cat -t 3.0 -n 7 -s 3.0 -z 23.43 image.fits
Photometry using detected objects, output to image.phot: yoda -P -p
image.phot -m master.cat -z 23.43 image.fits
Report bugs to <drory@astro.as.utexas.edu>
COPYRIGHT
Copyright (C) Niv Drory YODA comes with ABSOLUTELY NO WARRANTY. You
may redistribute copies of YODA under the terms of the GNU General Pub-
lic License. See the file named COPYING.
SEE ALSO
The full documentation for YODA is maintained as a Texinfo manual. If
the info and YODA programs are properly installed at your site, the
command
info YODA
should give you access to the complete manual.
YODA 1.2.5 2004-10-06 October 2004 YODA(1)
Man(1) output converted with
man2html