This source isn't covered by NVSS so we'll have to have a look at the field using SUMSS at 843 MHz. I've used a script to process the SUMSS catalogue and extract all the sources > 50 mJy in a 3 x 3 degree square patch of sky centred on 1218-460.

An hms-dms format LSM file and a Karma annotation file are attached below. It seems like the source finder has picked up a load of the residual junk around 1218-460 (see the picture) and added it to the catalogue, so it might be worth excising these sources from the LSM.

The reference frequency is 843 MHz in the LSM and I've given every source a spectral index of -0.7, which is obviously a pretty crap assumption.