Clearly these are relatively rare beasts, I caught only my second sodium free meteor a few nights back…
Very similar in composition to the first in this thread, Ca and Mg are the most prominent lines, interestingly the Ca and Mg lines are from neutral atoms the usually bright Ca+ lines in the near UV and the Mg+ line 448.12nm are missing….
Indirectly it was certainly less than 60km/s but an orbit solution would confirm this.
Did any of the NEMETODE team get this one…?
With recent results it is clear we have quite a zoo of micro geology falling on us!