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pfmerge noao.digiphot.daophot


NAME · USAGE · PARAMETERS · DESCRIPTION · EXAMPLES · TIME_REQUIREMENTS
BUGS · SEE_ALSO

NAME

pfmerge -- merge a list of photometry files

USAGE

pfmerge inphotfiles outphotfile

PARAMETERS

inphotfiles
The list of photometry files to be merged. Inphotfiles may be the output of the DAOPHOT tasks PHOT, PSTSELECT, PSF, PEAK, GROUP, GRPSELECT, NSTAR, or ALLSTAR. Inphotfiles may be either a list of APPHOT/DAOPHOT text databases or a list of STSDAS binary tables.
outphotfile
The output photometry file. Outphotfile consists of the header of the first input photometry file, followed by a list of records, one per input file record, each consisting of five fields: ID, XCENTER, YCENTER, MAG, and MSKY. Outphotfile is a an APPHOT/DAOPHOT text database if the first photometry file is a text database, an STSDAS binary table if the first photometry file is an ST table.
verbose
Print messages about the progress of the task ?

DESCRIPTION

PFMERGE creates a new photometry file suitable for input to PSF, PEAK, GROUP, or ALLSTAR by extracting the header of the first input photometry file and the values of the five fields: ID, XCENTER, YCENTER, MAG, and MSKY from each photometry record in each input file, and writing them to outphotfile . Inphotfiles may be either APPHOT/DAOPHOT text databases or STSDAS binary tables, but outphotfile inherits the type of the first input photometry file.

The principal application of PFMERGE is to combine the results of one of the DAOPHOT fitting tasks, e.g. ALLSTAR, with the results of the aperture photometry task PHOT, to create a new photometry file suitable for input to the fitting task. e.g. ALLSTAR, since it if often the case that the user wishes to combine preliminary results for a few additional stars with the best fit results to date on the original star list.

PFMERGE is intended to combine photometry files from different DAOPHOT tasks. The task PCONCAT can be used to combine photometry files produced by the same task.

EXAMPLES

1. Combine the results of the first allstar run with phot task results on a small list of stars detected after the first list of stars was subtracted from the original image.

	cl> pfmerge m92.als.1,m92.mag.5 m92.als.2

TIME REQUIREMENTS

BUGS

SEE ALSO

pconcat


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