Radio Observations from Australia of Comet 9P/Tempel 1 for Deep Impact

We present radio observations of comet 9P/Tempel 1, associated with the Deep Impact mission, made with the Australia Telescope National Facility. Weak 18-cm OH emission was detected with the Parkes 64-m telescope, in data averaged over July 4-6, at a level of 12 +/- 3 mJy km/s. The OH emission was increasing, but we stopped observing after July 6. We did not detect the HCN 1-0 with the Mopra 22-m telescope over the period July 2-6. The 3 a limit was 0.06 K km/s for HCN on July 4 after the impact. We did not; detect; the HCN 1-0 line, 6.7 GHz CH3OH line or 3.4-mm continuum with the Australia Telescope Compact Array (ATCA) on July 4, giving further limits on any small-scale structure due to an outburst.