Abstract: An overview of the radio observations during January 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 January 2023.
The hourly numbers, for echoes shorter than 1 minute, are weighted averages derived from:
No lightning activity was observed and local interference and unidentified noise remained moderate to low during this month.
The eye-catchers were of course the Quadrantids/Boötids, reaching their peak on January 4th. Figure 3 shows the activity compared to the radiant’s elevation.
Although the general activity was, as expected, quite low during the remainder of the month, several minor showers and brief outbursts as i.e., on January 26th (Figure 4) were observed.
Over the entire month, 7 reflections longer than 1 minute were observed. A selection of these, together with a number of interesting “epsilons” are attached (Figures 5 to 14). Many more are available on request.
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.