Wikipedia

As I understand, that's a decent analogy.

They have been measured in situ only on Earth and Titan, although they are believed to exist on other planets like Mars.

4 Discussion and Conclusions The recent findings by Cardnell et al. [2016] highlighted the large conductivity differences in the Martian atmosphere depending on solar illumination. Our simulations show that dayside conditions do not allow SR to develop, while nightside conditions, presenting conductivities 2 orders of magnitude lower, do (Figure 1).

To summarize, we report numerical simulations of the SR to be expected at Mars, based on the latest modeling efforts of the Martian atmosphere-ionosphere chemical interactions and properties. The day-night asymmetry was never addressed before in SR studies at Mars, and our study highlights its importance for assessing the main SR parameters.

https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2016GL071635

I wonder if this sort of data could help in the search for potentially inhabitable planets sometime in the future?