condition mean min max 3 h after light 889.8453333333333 794.357 940.864 6 h after light 840.2003333333333 765.77 901.138 9 h after light 614.972 488.055 695.35 12 h after light 326.89275 135.831 760.654 3 h after dark 70.04396666666666 54.9332 81.5573 6 h after dark 77.55573333333334 74.9589 81.1409 9 h after dark 238.056 199.256 262.273 12 h after dark 877.752 808.379 947.125