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phot |
 | | PHOT computes accurate centers, sky values, and magnitudes for a list of objects in the IRAF image image whose coordinates are read from the text file coords or the image display cursor, and writes the computed x and y coordinates, sky values, and magnitudes to the text file output. |
 | | If cacheing is enabled and PHOT is run interactively the first measurement will appear to take a long time as the entire image must be read in before the measurement is actually made. |
 | | PHOT computes accurate centers for each object using the centering parameters defined in centerpars, computes an accurate sky value for each object using the sky fitting parameters defined in fitskypars, and computes magnitudes using the photometry parameters defined in photpars. |
| stsdas.stsci.edu /cgi-bin/gethelp.cgi?phot (3284 words) |
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