Finding discrete events

Hi, In this URL, https://rhodesmill.org/skyfield/searches.html , i see about finding discrete events, but it is for a single value, how can i use the same thing for finding multiple values, say for example , here

def mars_quadrature(t):
  e = earth.at(t)
  s = e.observe(sun).apparent()
  m = e.observe(mars).apparent()
  return s.separation_from(m).degrees >= 90

I want to find mars_quadrature for 50 60 and 90, how can i do that in this function. Any help would be appreciated.

[brandon-rhodes]

Generally, separation_from() will never reach zero, so there’s no danger of it happening — but maybe something like (separation_from(…) != 0) * (… the rest of the expression …) would do it, by multiplying everything else by 1 if the separation is non-zero, but multiplying by 0 if it is zero?

[brandon-rhodes]

It’s reporting the “region” into which it’s entering, so “60” means “60-89” and “50” means “50-59”.