Abstract: An overview of the radio observations during May 2022 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 May 2022.
The hourly numbers, for echoes shorter than 1 minute, are weighted averages derived from:
Local interference and unidentified noise remained moderate to low for most of the month, but observations were sometimes difficult due to strong lightning activity (on 9 different days) and near daily powerful solar eruptions (see Figures 3, 4 and 5). This solar activity was of course interesting in itself.
The general meteor activity was quite high, with the eta Aquariids in the first days of the month, and throughout the month mainly daytime showers. In addition, on the 31th there was the predicted outburst of tau Herculids.
This month, 22 reflections lasting more than 1 minute were observed. A selection of SpecLab images is shown in Figures 6 to 19.
In addition to the usual graphs, you will also find the raw counts in cvs-format from which the graphs are derived.
The table contains the following columns: day of the month, hour of the day, day + decimals, solar longitude (epoch J2000), counts of “all” reflections, overdense reflections, reflections longer than 10 seconds and reflections longer than 1 minute, the numbers being the observed reflections of the past hour.
Figure 1 – The daily totals of “all” reflections counted automatically, and of manually counted “overdense” reflections, as observed here at Kampenhout (BE) on the frequency of our VVS-beacon (49.99 MHz) during May 2022.
Figure 2 – The hourly numbers 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 May 2022.
Figure 3 – Solar eruptions 01 May 2022, 15h45m UT.
Figure 4 – Solar eruptions 21 May 2022, 14h35m UT.
Figure 5 – Solar eruptions 25 May 2022, 18h20m UT.
Figure 6 – Meteor reflection 03 May 2022, 06h15m UT.
Figure 7 – Meteor reflection 05 May 2022, 06h10m UT.
Figure 8 – Meteor reflection 05 May 2022, 09h55m UT.
Figure 9 – Meteor reflection 06 May 2022, 06h10m UT.
Figure 10 – Meteor reflection 06 May 2022, 11h15m UT.
Figure 11 – Meteor reflection 07 May 2022, 10h05m UT.
Figure 12 – Meteor reflection 08 May 2022, 09h35m UT.
Figure 13 – Meteor reflection 08 May 2022, 09h50m UT.
Figure 14 – Meteor reflection 09 May 2022, 11h05m UT.
Figure 15 – Meteor reflection 11 May 2022, 05h55m UT.
Figure 16 – Meteor reflection 12 May 2022, 13h55m UT.
Figure 17 – Meteor reflection 16 May 2022, 06h50m UT.
Figure 18 – Meteor reflection 28 May 2022, 13h25m UT.
Figure 19 – Meteor reflection 31 May 2022, 07h30m UT.
