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XMM-Newton Science Analysis System


eposcorr (eposcorr-3.13) [xmmsas_20211130_0941-20.0.0]

Parameters

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

ParameterMand Type Default Constraints
xraysetyesset  
File name for the fits binary table containing X-ray source positions and their errors.
 
opticalsetyesset  
File name for the fits binary table containing optical source positions and their errors.
 
findrotationnobooleanno 
Search for a rotational offset or not?
 
niternointeger31–8
Once a solution is found a new iteration can be made using a smaller grid size. This parameter determines the number of iterations.
 
maxoffsetnoreal8.04.0–15.0
Constraint on the maximum RA/DEC offset.
 
maxrotationnoreal1.00.5–4.0
Constraint on the maximum rotational offset.
 
maxdistnoreal20.010.0–120.0
All optical sources with distances $>$ maxdist will be removed from the source list, in order to speed up the correlation.
 
maxposnerrnoreal20.01.0–120.0
Neglect X-ray sources with positional errors $>$ maxposnerr in position fitting in order to get a closer match to the real positions on the sky.
 
usemaxdistnobooleanyes 
Use maxdist to make a preselection of optical sources?
 
minbmagnnoreal0.0-2.0–30.0
Preselect the optical list on basis of B Magnitude. Here the minimum is set.
 
maxbmagnnoreal26.0-2.0–30.0
Preselect the optical list on basis of B Magnitude. Here the maximum is set.
 
usebmagnnobooleanno 
Use the B magnitude to make a preselection of optical sources?
 
bmagnostringBmagn 
Column name of optical B magnitudes (column in single precision)
 
minrmagnnoreal0.0-2.0–30.0
Preselect the optical list on basis of R Magnitude. Here the minimum is set.
 
maxrmagnnoreal26.0-2.0–30.0
Preselect the optical list on basis of R Magnitude. Here the maximum is set.
 
usermagnnobooleanno 
Use the R magnitude to make a preselection of optical sources?
 
rmagnostringRmagn 
Column name of optical R magnitudes (column in single precision)
 
makeimagenobooleanno 
yes: the grid containing likelihood values will be written as a fits image file
 
imagenamenofilenamelikelihood_test.fitsconstraints
the name of the image file containing the likelihood values
 
opticalranostringCAT_RA 
Column name of optical catalogue position RA (column in single or double precision)
 
opticaldecnostringCAT_DEC 
Column name of optical catalogue position DEC (column in single or double precision)
 
opticalradecerrnostringCAT_RADEC_ERR 
Column name of optical catalogue position error (column in single or double precision)
 
opticaltableextnostringRAWRES 
Optical catalogue fits table extension name
 
xrayranostringRA 
Column name of X-ray source position RA
 
xraydecnostringDEC 
Column name of X-ray source position DEC
 
xrayradecerrnostringRADEC_ERR 
Column name of X-ray source position error
 
xraytableextnostringSRCLIST 
X-ray source list fits table extension name
 
calculateoffsetsnobooleanyes 
Calculate offsets; if no: use offsets/rotation provided by input parameter
 
raoffsetnoreal0.0 
RA offset (arcsec) to be used if calculateoffsets=no
 
decoffsetnoreal0.0 
DEC offset (arcsec) to be used if calculateoffsets=no
 
rotationnoreal0.0 
rotation angle (degrees) to be used if calculateoffsets=no
 
withmatchtablenobooleanno 
write optional table of matched objects
 
matchsetnostringmatches.fits 
name of matched objects file
 
rawxsyserrnoreal1.5 
systematic error of input X-ray positions
 
minxsyserrnoreal0.2 
irreducible systematic error of X-ray positions
 
maxsignoreal5.0 
sigma cutoff for X-ray/optical matches
 
usemaxsignobooleanyes 
use sigma cutoff limit
 
ParameterMand Type Default Constraints

XMM-Newton SOC -- 2021-11-30