3/12/21

 The most common spacing between observations is approximately1 day, but the observations are irregularly sampled and not on a fixed24 hour period, so the true “Nyquist frequency” of these observationsis much higher than it would be if observations were sampled on afixed 24 hour grid (VanderPlas 2018); thus, it is statistically justifiableand scientifically worthwhile to choose a higher maximum frequency(lower minimum period) for our periodogram