Parameters

Parameter	Mand	Type	Default	Constraints
imageset	yes	filename	image.fits
Name of EPIC FITS image
attitudeset	yes	filename	attitude.fits
Name of attitude file
eventset	yes	filename	events.fits
Event file (for input of bad pixel and exposure extensions)
expimageset	yes	list of filenames	expimage.fits
Names of output exposure images
withdetcoords	no	boolean	false
If true the exposure map will be output in detector coordinates. In this case, bin type of input images has to be DETX, DETY.
usedss	no	boolean	true
Set to true to make the program read time selections performed on the dataset
withvignetting	no	boolean	true
if set to true exposure map will include vignetting
usefastpixelization	no	boolean	true
if set to true a speed increase of up to a factor of two is achieved, at the cost of inaccurate exposures values in border pixels
withpatterns	no	boolean	true
If true event patterns will be read from parameter 'pattern'; if false the data subspace extension of the dataset will be accessed instead (not yet implemented)
pattern	no	string	' '
Event pattern types may be specified in the following format (example): '0 1 2' for pattern types 0 to 2 (0 referring to single events)
badclean	no	integer		[0param5]
Cleaning around bad pixels and borders: Value 1 will exclude 4 immediately neighbouring pixels; value 2 will also exclude diagonal pixels (see section description)
attrebin	no	float	4.0	[0.0param60.0]
Positional accuracy parameter (arcseconds), changes in the attitude less than attrebin are ignored when rebinning the attitude data.
useoffset	no	boolean	true
use information on EPN offset columns
hducut	no	float	0.0	[0.0param1000.0]
threshold for column offset; columns with offsets hducut will be excluded
pimin	no	integer	2000	[0param30000]
Lower energy boundaries of exposure images
pimax	no	integer	4500	[0param30000]
Higher energy boundaries of exposure images
Parameter	Mand	Type	Default	Constraints

Note that in the current calibration database PN pattern type 1 refers to all non-single events.
DSS support is currently limited to TIME range and gti filters, as well as to CCDNR selections. Note that parameter writedss of task evselect must be set to true when creating the input image for task eexpmap.