Examples

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Examples

To background subtract a time series

ICL> XRTSUB
SOURCE - Name of source file > SRC
BCKGND - Name of background file > BACK
OUT - Name of output file > SUB
RESPFILE - Name of response file /'XRTCAL:DRMPSPC'/ >
EFFILE - Name of effective area file /'XRTCAL:PSPCB_EFF'/ >
RTNAME - Rootname for calibration files > QFIELD
Mean position correction factor: 1.01

To subtract an HRI spectrum - MUST turn off the positional correction.

ICL> XRTSUB PCORR=NO
SOURCE - Name of source file > SRC
BCKGND - Name of background file > BACK
OUT - Name of output file > SUB

To subtract a PSPC image

ICL> XRTSUB
SOURCE - Name of source file > IMA2
BCKGND - Name of background file > BACKANN
OUT - Name of output file > IMSUB
RESPFILE - Name of response file /'XRTCAL:DRMPSPC'/ >
EFFILE - Name of effective area file /'XRTCAL:PSPCB_EFF'/ >
RTNAME - Rootname for calibration files > QFIELD
BIMAGE - Name of Background image > BACKIM
Estimated 222.3 particles in the background box: 1.5 percent of total
background

To produce a particle spectrum file

ICL> XRTSUB PART_FILE=PFILE

To produce a file containing the actual background removed and set the miminum variance from the input background file to be one.

ICL> XRTSUB BGMODEL=REALBGD BDEFVAR=1.0

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Tue Oct 7 10:18:50 BST 1997