XMM-Newton Science Analysis System


omphotom (omphotom-1.5.1) [22.0.0-9173c7d25-20250127]

Parameters

This section documents the parameters recognized by this task (if any).

Parameter	Mand	Type	Default	Constraints
paramfile	no	string	” ”
name of text file containing all the parameters to be used by omphotom
logfile	no	string	” ”
name of text file for output to be written to
imageset	no	string	” ”
Input image file
backgroundimageset	no	string	“”
Input background-image file (can be the same as that given for the taskparameter imageset)
oldsrclistset	no	string	” ”
Input product source-list
newsrclistset	no	string	” ”
Output source-list set
sourceno	no	integer	” ”
List of sources to be reprocessed. NB: these correspond to the order of the sources in the input source list not the SRCNUM column value.
phototype	no	integer	” ”
List containing photometry method to be used for each source
aperturer	no	real	” ”
List containing aperture radius (pixels) to be used for each source For high-resolution images that allowed range is 4 to 12 pixels, and for low-resolition images 2 to 6 pixels.
innera	no	real	” ”
List containing inner background-annulus radius (pixels) to be used for each source
outeraa	no	real	” ”
List containing outer background-annulus radius (pixels) to be used for each source
axialratio	no	real	” ”
List containing aperture axial-ratio (semi-major/semi-minor axes) to be used for each source
pa	no	real	” ”
List containing aperture position angle to be used for each source (Measured anti-clockwise from the positive x axis.)
background	no	real	” ”
List containing background counts per pixel to be used for a given source
weighting	no	integer	1	1–2
Defines the weighting function to be used in PSF fitting(inverse variance of unit weigts)
Parameter	Mand	Type	Default	Constraints