NEW TIMING PARAMETERS AND POSITIONS FOR 16 SOUTHERN RADIO PULSARS

We report timing observations on 16 pulsars obtained using the Ooty Ra dio Telescope operating at 327 MHz. Using these observations, spanning over a year, we have obtained values of period derivatives for the fi rst time and refined the estimates of the periods for all pulsars in t his sample. We also report improved positions for all cases where the earlier position estimates had an uncertainty of a few arcmin.