An overview of the radio observations during March 2021 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 March 2021.
The hourly numbers, for echoes shorter than 1 minute, are weighted averages derived from:
Local interference and unidentified noise remained fairly low for most of the month, except for March 30th and 31st, when very strong unidentified noise often made counting of underdense and short overdense reflections impossible. As a result, data are left out for these categories of reflections from 2021 March 30, 09h00m till 2021 March 31, 15h00m UT.
Only on March 12th and 13th, moderate lightning activity was detected.
As expected, the overall shower activity remained low, with no real eye-catchers, but with some interesting minor meteor showers, as shown by the graphs of reflections longer than 10 seconds. During this month 5 reflections lasting more than 1 minute were observed. A selection of striking or strong reflections is attached. (Figures 3 to 8)
If you are interested in the actual figures, or in plots showing the observations as related to the solar longitude (J2000) rather than to the calendar date, I can send you the underlying Excel files and/or plots. Please send me an e-mail; felix.verbelen at skynet.be.