The following document lists the file abstract/PHT_CAL_P04PSF01.abs
from catalogue VI/111.
A plain copy of the file
(without headers/trailers) may be downloaded.
In order to perform accurate relative photometry to detect faint emission around point sources in the multi-aperture mode a reliable point source reference profile needs to be established which covers representative wavelenghts of all three aperture photometers. This first part addresses P2 and P3 measurements.