flc2ascii is a Perl script This script dumps a FITS lightcurve or a XRONOS output file into ASCII and adds header information suitable for QDP/PLT. The output ASCII file contains: (1) the QDP/PLT command 'READ SERR', followed by numbers indicating the vectors which have errors, (2) the FITS header and GTI extension (if present in the input file) with an '!' prepended to each line, and (3) columns of data representing the X-axis and Y-axis (plus additional error columns and a fractional exposure column, if selected from the input file). The script recognizes two possible formats for the FITS lightcurve or XRONOS output: data stored (a) as a single element or (b) as an array of elements in column (Note only one dimension e.g. TDIMn= '(j)'). For the format (a), all the rows in the table for a given column are moved into the ASCII file, for (b), only one row (array type) is dumped into an ASCII file. The script creates an X-axis if not present in the FITS lightcurve or XRONOS output. For the format (b) the X-axis is derived using the auxiliary coordinates column keywords (e.g. 1CTYPn, 1CVALn, 1CDLTn with n column number). Only if the X-axis is TIME for the format (a), the X column in the ASCII file is derived from the timing header keyword TIMEDEL. -h See this message. -i infile[ext] Name of the input file. Extension may be specified with + or . Default extension is 1. -o outfile Output file name. -q Spawn QDP on output file when finished. -r # For a "one interval per row" type input file, specifies which row number. -x column[,error] Column name for the X axis and (optional) X error column. (For no X column enter 0). -y column[,error] Column name for the Y axis and (optional) Y error column. -f column Column name for the fractional exposure (0 for none).
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Last modified: Wednesday, 04-Jun-2003 11:35:12 EDT