condition mean min max 4 h after light 51366.97611 43995.135 56370.35 8 h after light 53996.54278 45019.665 61584.78667 12 h after light 125940.76891000001 76574.51333 156547.3967 1.5 h after dark 159484.83221 63392.73333 208985.88 5.5 h after dark 129203.70335666668 73105.81667 158754.9567 9.5 h after dark 93710.5289 57096.70333 138189.5867