Fig. 5
Average activity (ZHRv) of the Orionid meteor shower, as measured with the CMOR 29 system (blue) and the 38 MHz system (green) between 2002 and 2019, the VMN (red) between 2011 and 2019, and visual observations from the VMDB between 2002 and 2019 (black). Differences in the 38 MHz profile are increased by the lower number of available observations. More information is given in the text.
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