... correction[*]
http://asc.harvard.edu/ciao/threads/acistimegain/
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... selection[*]
http://asc.harvard.edu/cal/Links/Acis/acis/Cal_prods/vfbkgrnd/
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... analyze_ltcrv[*]
http://cxc.harvard.edu/ciao/threads/filter_ltcrv/
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... W3nH[*]
http://heasarc.gsfc.nasa.gov/cgi-bin/Tools/w3nh/w3nh.pl
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Copyright ESO 2005