From the https://eclipse.gsfc.nasa.gov/SEhelp/moonorbit.html website, there is this figure:
I am guessing that the major ticks on the left vertical axis are days, and that the centered major tick (opposite to 180) is the mean.
From the https://eclipse.gsfc.nasa.gov/SEhelp/moonorbit.html website, there is this figure:
I am guessing that the major ticks on the left vertical axis are days, and that the centered major tick (opposite to 180) is the mean.
The Y-Axis title does say ‘(days)’ – based on the text it looks like 12-hour minor ticks and 1 day for the major.
Thanks Kevin, That’s what I assumed. And the mean is in the middle.