3 Observations

We imaged two fields in DC 303.8-14.2 at 3.5 and 6.3 cm wavelengths with the ATCA during 13-14 March 1997. The array was in the 1.5D configuration, which gave a range of interferometer spacings between 102 m and 4.4 km, and the correlator was set to provide a total bandpass of 128 MHz at both 3 and 6 cm. The primary beam FWHMat 6 cm and 3 cm are 10 $\hbox{$^\prime$ }$ and 5 $\hbox{$^\prime$ }$, respectively. The first field was centered on IRAS 13036-7644, while the second was offset 5 $\hbox{$^\prime$ }$ West and 2 $\hbox{$^\prime$ }$ South from this position. Five minute integrations in each field were alternated with short scans of a nearby secondary calibrator throughout the 14-hour observing period. All fluxes were tied to the standard source 1934-638 ( $S(6~\rm cm)=4.81$ Jy, Reynolds 1994). The absolute flux calibration accuracy is expected to be 10%. Reference pointing was used throughout to minimize positional uncertainty. Data editing, calibration, and mapping was done using NRAO's AIPS software package. Naturally weighted maps were made for both fields and frequencies. These had rms map noises after CLEANing of 50 $\mu$ Jy/beam (3 cm) and 48 $\mu$ Jy/beam (6 cm), which are both near the expected values. The synthesized beams have FWHM of $3.6\hbox{$^{\prime\prime}$ }\times 2.8\hbox{$^{\prime\prime}$ }$ (3 cm) and $5.1\hbox{$^{\prime\prime}$ }\times 4.5\hbox{$^{\prime\prime}$ }$ (6 cm). Finally, each map was corrected for primary beam attenuation.