An overview of the radio observations during July 2020 is given.
The graphs show both the daily totals (Figure 1) and the hourly numbers (Figure 2) of “all” reflections counted automatically, and of manually counted “overdense” reflections, overdense reflections longer than 10 seconds and longer than 1 minute, as observed here at Kampenhout (BE) on the frequency of our VVS-beacon (49.99 MHz) during the month of July 2020.
The hourly numbers, for echoes shorter than 1 minute, are weighted averages derived from:
The automatic counts were sometimes complicated by local interference and strong unidentified noise. Lightning activity was only recorded during the last hours of July 31. Most automatic counting errors were corrected manually.
There were no real eye-casting peaks, but the overall activity remained high and increased as expected towards the end of the month, mainly due to the activity of the Southern Delta Aquariids (SDA) and some Perseids, with a number of very strong reflections. There were, however, numerous smaller showers in the course of the month, as shown by the counts of the “overdense” reflections.
A selection of some interesting reflections during this month is also included (Figures 3, 4, 5, 6 , 7, 8, 9, 10, 11, 12, 13, 14 and 15). It is striking that the long reflections are often accompanied by a number of underdense meteors.
If you are interested in the actual figures, please send me an e-mail: felix.verbelen at skynet.be.