xselect suzaku HK file

xsel:SUZAKU-XIS0-STANDARD > read hk hkfiles="darts_dir/auxil/ae100046010.ehk.gz" expand=yes
> HK file directory >[/home/cc/i02111/work/suzaku_data//801038010] ./
xsel:SUZAKU-XIS0-STANDARD > select hk "SAA==0 && ELV >5 && DYE_ELV > 20 && COR > 6"
PREFR keyword not found, using prefr = 0.5
POSTFR keyword not found, using postfr = 0.5
-> maybe ignored
-> xselect may read gziped HK file