Learmonth - Type II bursts Daily summary from 20120423 2249 to 20120424 0960 (YYYYMMDD hhmm UT) date start-end time shock speeds arrival dates & times (YYYYMMDD) (hhmm UT) (km/s km/s) (YYYYMMDD hh YYYYMMDD hh) 20120424 0748 - 0751 790 1226 20120426 24 20120426 5 The results are preliminary. The Newkirk model is used to estimate the shock speeds and arrival times. The 2 values are obtained under the assumption that the emission is fundamental and harmonic, respectively. The actual detections are shown in pictures with dynamic spectra. Culgoora - Type II bursts Daily summary from 20120423 2000 to 20120424 0760 (YYYYMMDD hhmm UT) There were no type II solar radio bursts.