The observations described here were made at a frequency of 8.4 GHz, on 1994 February 26, with the following array of telescopes: Tidbinbilla (70 m), Parkes, Hobart, Mopra, and Narrabri. The data were obtained and processed as described in chapter 2.
The radio source is resolved into the core-jet morphology typical of many compact radio sources (Figure 8.1). A model of simple Gaussian components was generated (by initial reference to the image) to represent the core and jet components, and the parameters of the model optimised to fit the visibility amplitudes and closure phases by using the Caltech package task MODELFIT. The jet (north-east component) was shown to lie at a position angle of 44 
5 from the core (south-west component). The jet position angle was verified by de-convolving the core and jet components in the image from the beam using the AIPS task JMFIT. The de-convolved core dimensions of 2.4 
0.7 mas and the core flux of 0.82 Jy
Figure: Map peak, 0.72 Jy/beam. Contours, -0.5, 0.5, 1, 2, 4, 8, 16, 32, 64% of peak. Beam FWHM, 6.4 4.2 @ -76.6 .
give a core brightness temperature of approximately 8.4 
K at 8.4 GHz.