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#!/bin/sh
#
unalias -a
export LC_COLLATE=C
###########################################################
## process `blanksky' bkg files for spectra analysis ##
## http://cxc.harvard.edu/ciao/threads/acisbackground/ ##
## ##
## for extracting the spectrum of the background ##
## for determining the background components ##
## ##
## inputs: `evt2_clean', `asol files' ##
## output: `blanksky_c7.fits' for ACIS-S, ##
## `blanksky-c0-3.fits' for ACIS-I ##
## ##
## LIweitiaNux, January 11, 2011 ##
###########################################################
###########################################################
## ChangeLogs:
## v2: 2012/08/01
## add ACIS-I support (chips 0-3)
## v3: 2012/08/06, Junhua Gu
## pass parameters by cmd line param
## v4: 2012/08/13, LIweitiaNux
## add `clobber=yes' parameters to CIAO tools
## improve `commandline arguements'
## add `default parameters'
###########################################################
## about, used in `usage' {{{
VERSION="v4"
UPDATE="2012-08-14"
## about }}}
## usage, help {{{
case "$1" in
-[hH]*|--[hH]*)
printf "usage:\n"
printf " `basename $0` evt=<evt2_clean> basedir=<base_dir> [ outfile=<outfile_name> ]\n"
printf "\nversion:\n"
printf "${VERSION}, ${UPDATE}\n"
exit ${ERR_USG}
;;
esac
## usage, help }}}
## default parameters {{{
# default `event file' which used to match `blanksky' files
#DFT_EVT="_NOT_EXIST_"
DFT_EVT="`ls evt2*_clean.fits`"
# default dir which contains `asols, asol.lis, ...' files
# DFT_BASEDIR="_NOT_EXIST_"
DFT_BASEDIR=".."
## howto find files in `basedir'
# default `asol.lis pattern'
DFT_ASOLIS_PAT="acis*asol?.lis"
## default parameters }}}
## error code {{{
ERR_USG=1
ERR_DIR=11
ERR_EVT=12
ERR_BKG=13
ERR_REG=14
ERR_ASOL=21
ERR_BPIX=22
ERR_PBK=23
ERR_MSK=24
ERR_BKGTY=31
ERR_SPEC=32
## error code }}}
## functions {{{
# process commandline arguments
# cmdline arg format: `KEY=VALUE'
getopt_keyval() {
until [ -z "$1" ]
do
key=${1%%=*} # extract key
val=${1#*=} # extract value
keyval="${key}=\"${val}\""
echo "## getopt: eval '${keyval}'"
eval ${keyval}
shift # shift, process next one
done
}
# reprocess blanksky evt with matched gainfile
blank_regain() {
mv $1 ${1%.fits}_ungain.fits
punlearn acis_process_events
acis_process_events infile="${1%.fits}_ungain.fits" \
outfile="$1" \
acaofffile=NONE stop="none" doevtgrade=no \
apply_cti=yes apply_tgain=no \
calculate_pi=yes pix_adj=NONE \
gainfile="$2" \
eventdef="{s:ccd_id,s:node_id,i:expno,s:chip,s:tdet,f:det,f:sky,s:phas,l:pha,l:pha_ro,f:energy,l:pi,s:fltgrade,s:grade,x:status}" \
clobber=yes
rm -fv ${1%.fits}_ungain.fits
}
## functions end }}}
## parameters {{{
# process cmdline args using `getopt_keyval'
getopt_keyval "$@"
# check given parameters
# check evt file
if [ -r "${evt}" ]; then
EVT=${evt}
elif [ -r "${DFT_EVT}" ]; then
EVT=${DFT_EVT}
else
read -p "evt2 file: " EVT
if ! [ -r "${EVT}" ]; then
printf "ERROR: cannot access given \`${EVT}' evt file\n"
exit ${ERR_EVT}
fi
fi
printf "## use evt file: \`${EVT}'\n"
# check given dir
if [ -d "${basedir}" ]; then
BASEDIR=${basedir}
elif [ -d "${DFT_BASEDIR}" ]; then
BASEDIR=${DFT_BASEDIR}
else
read -p "basedir (contains asol files): " BASEDIR
if [ ! -d ${BASEDIR} ]; then
printf "ERROR: given \`${BASEDIR}' NOT a directory\n"
exit ${ERR_DIR}
fi
fi
# remove the trailing '/'
BASEDIR=`echo ${BASEDIR} | sed 's/\/*$//'`
printf "## use basedir: \`${BASEDIR}'\n"
## parameters }}}
## check files in `basedir' {{{
# check asol files
ASOLIS=`ls -1 ${BASEDIR}/${DFT_ASOLIS_PAT} | head -n 1`
if [ -z ${ASOLIS} ]; then
printf "ERROR: cannot find \"${DFT_ASOLIS_PAT}\" in dir \`${BASEDIR}'\n"
exit ${ERR_ASOL}
fi
printf "## use asolis: \`${ASOLIS}'\n"
## check files }}}
#exit 0 # test script
#### main start {{{
printf "look up coresponding background file ...\n"
BKG_LKP="`acis_bkgrnd_lookup ${EVT}`"
AS_NUM=`echo ${BKG_LKP} | tr ' ' '\n' | \grep 'acis7sD' | wc -l`
AI_NUM=`echo ${BKG_LKP} | tr ' ' '\n' | \grep 'acis[0123]iD' | wc -l`
## determine detector type: ACIS-S / ACIS-I {{{
if [ ${AS_NUM} -eq 1 ]; then
printf "## ACIS-S, chip: 7\n"
BKG_ROOT="blanksky_c7"
cp -v ${BKG_LKP} ${BKG_ROOT}_orig.fits
elif [ ${AI_NUM} -eq 4 ]; then
printf "## ACIS-I, chip: 0-3\n"
BKG_ROOT="blanksky_c0-3"
AI_FILES=""
for bf in ${BKG_LKP}; do
cp -v ${bf} .
AI_FILES="${AI_FILES},`basename ${bf}`"
done
AI_FILES=${AI_FILES#,} # remove the first ','
printf "## ACIS-I blanksky files to merge:\n"
printf "## \`${AI_FILES}'\n"
printf "\`dmmerge' to merge the above blanksky files ...\n"
# merge 4 chips blanksky evt files
punlearn dmmerge
dmmerge "${AI_FILES}" ${BKG_ROOT}_orig.fits clobber=yes
rm -fv `echo ${AI_FILES} | tr ',' ' '` # remove original files
else
printf "## ERROR: UNKNOW blanksky files:\n"
printf "## ${BKG_ORIG}\n"
exit ${ERR_BKG}
fi
## determine ACIS type }}}
## check 'DATMODE' {{{
## filter blanksky files (status=0) for `VFAINT' observations
DATA_MODE="`dmkeypar ${EVT} DATAMODE echo=yes`"
printf "## DATAMODE: ${DATA_MODE}\n"
if [ "${DATA_MODE}" = "VFAINT" ]; then
mv -fv ${BKG_ROOT}_orig.fits ${BKG_ROOT}_tmp.fits
printf "apply \`status=0' to filter blanksky file ...\n"
punlearn dmcopy
dmcopy "${BKG_ROOT}_tmp.fits[status=0]" ${BKG_ROOT}_orig.fits clobber=yes
rm -fv ${BKG_ROOT}_tmp.fits
fi
## DATAMODE, status=0 }}}
## check `GAINFILE' of blanksky and evt2 file {{{
## if NOT match, then reprocess blanksky
GAINFILE_EVT="`dmkeypar ${EVT} GAINFILE echo=yes`"
GAINFILE_BG="`dmkeypar "${BKG_ROOT}_orig.fits" GAINFILE echo=yes`"
if ! [ "${GAINFILE_EVT}" = "${GAINFILE_BG}" ]; then
printf "WARNING: GAINFILE NOT match.\n"
printf "event: ${GAINFILE_EVT}\n"
printf "blank: ${GAINFILE_BG}\n"
printf "reprocess blanksky with evt gainfile ...\n"
# reprocess blanksky using matched evt GAINFILE
GAINFILE="$CALDB/data/chandra/acis/det_gain/`basename ${GAINFILE_EVT}`"
printf "GAINFILE: ${GAINFILE}\n"
blank_regain "${BKG_ROOT}_orig.fits" ${GAINFILE}
fi
## check & match GAINFILE }}}
printf "add the PNT header keywords ... "
EVT_HEADER="_evt_header.par"
EVT_PNT="_evt_pnt.par"
punlearn dmmakepar
dmmakepar ${EVT} ${EVT_HEADER} clobber=yes
grep -i '_pnt' ${EVT_HEADER} > ${EVT_PNT}
punlearn dmreadpar
dmreadpar ${EVT_PNT} "${BKG_ROOT}_orig.fits[EVENTS]" clobber=yes
printf "DONE\n"
printf "reproject the background ...\n"
punlearn reproject_events
reproject_events infile=${BKG_ROOT}_orig.fits \
outfile=${BKG_ROOT}.fits match=${EVT} \
aspect="@${ASOLIS}" random=0 clobber=yes
# rename output file if specified
if ! [ -z "${outfile}" ]; then
mv -fv ${BKG_ROOT}.fits ${outfile}
fi
## main end }}}
# clean
printf "\nclean ...\n"
rm -fv ${BKG_ROOT}_orig.fits ${EVT_PNT}
printf "\nFINISHED\n"
# vim: set ts=8 sw=4 tw=0 fenc=utf-8 ft=sh #
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