An overview of the radio observations during November 2018 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 November 2018.
The hourly numbers, for echoes shorter than 1 minute, are weighted averages derived from:
N(h) = n(h-1)/4 + n(h)/2 + n(h+1)/4
During this month there were few local disturbances, no registered “sporadic E” (Es) nor was there lightning activity.
Highlights of the month were the Leonids.
The number of underdense reflections of this swarm remained relatively low, but the overdense echoes were particularly numerous, with many reflections longer than 10 seconds. Remarkable was that the shorter overdense echoes had a maximum on November 19th, while the longer, and especially the overdenses longer than 1 minute, showed a clear maximum on November 20th. Attached are a few examples of the strongest reflections.
If you are interested in the actual figures, please send me an e-mail: felix.verbelen at skynet.be.