Abstract: An overview of the radio observations during December 2023 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 December 2023.
The hourly numbers, for echoes shorter than 1 minute, are weighted averages derived from:
No lightning activity was observed and local interference remained quite low during this month.
The eye-catchers were of course the Geminids, which reached their peak in the period December 13–15, with the long-lasting overdenses clearly peaking later than the underdense.
The Ursids showed a maximum on December 22 as expected. This is best seen in the daily graphs.
Other interesting showers were active, especially during the first week of the month.
Over the entire month, 13 reflections longer than 1 minute were observed here. Attached please find a selection of these and of other interesting reflections (Figures 3 to 14). Many more of these are available on request.
In addition to the usual graphs, you will also find the raw counts (subject to strict reservations as previously said) 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 December 2023.
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 December 2023.
Figure 3 – Meteor echo 3 December 2023, 12h40m UT.
Figure 4 – Meteor echo 4 December 2023, 04h50m UT.
Figure 5 – Meteor echo 4 December 2023, 05h10m UT.
Figure 6 – Meteor echo 6 December 2023, 09h30m UT.
Figure 7 – Meteor echo 7 December 2023, 11h25m UT.
Figure 8 – Meteor echo 7 December 2023, 21h30m UT.
Figure 9 – Meteor echo 8 December 2023, 01h40m UT.
Figure 10 – Meteor echo 11 December 2023, 03h25m UT.
Figure 11 – Meteor echo 14 December 2023, 20h00m UT.
Figure 12 – Meteor echo 15 December 2023, 00h10m UT.
Figure 13 – Meteor echo 15 December 2023, 00h35m UT.
Figure 14 – Meteor echo 31 December 2023, 01h20m UT.
