the nominal UDF. As a result, the statistical uncertainty on its flux is lower than for the average UDF source of the same brightness.

The spatial resolution of $Spitzer$ at 16$\mu$m and 22$\mu$m is 4.1$\arcsec$ and 5.2$\arcsec$ full width at half maximum (FWHM), respectively. At this resolution, the majority of sources, including JD2, are point sources. This makes it possible to use prior positions from higher resolution data, such as the GOODS 3.6$-$8[$\mu$m]{} imaging [@MED03 Dickinson et al., in prep.] and apply point-source fitting techniques to measure the flux density of the source. The technique has successfully been used for cataloging 24$\mu$m sources from the GOODS/MIPS imaging survey. The results are consistent with aperture photometry, with appropriate aperture corrections, for isolated sources and alleviate the contamination to the photometry from the wings of the point spread function for sources which have nearby companions. Postage stamp image cutouts of JD2 are shown in Figure 1.

The 16$\mu$m and 22$\mu$m flux densities of the source are 13.5$\pm$3.5$\mu$Jy and 56$\pm$12$\mu$Jy respectively. In comparison, the 24$\mu$m flux density of the source from the GOODS imaging of the field is 51$\pm$4$\mu$Jy. HUDF-JD2 is separated by 7$\arcsec$ from a brighter mid-infrared source to the south east 