Height (km) Fp (MHz) Ne (cm^-3) 91.4 0.2 493.8271605 100 0.469 2715.567901 110 0.542 3626.716049 120 0.521 3351.123457 130 0.454 2544.641975 140 0.308 1171.160494 144.033 0.2 493.8271605 150 0.2 493.8271605 160 0.2 493.8271605 170 0.2 493.8271605 178.067 0.2 493.8271605 180 0.219 592.1111111 190 0.32 1264.197531 200 0.42 2177.777778 210 0.521 3351.123457 212.1 0.542 3626.716049 220 0.671 5558.530864 230 0.834 8587.111111 240 1.033 13173.93827 250 1.29 20544.44444 260 1.603 31723.5679 270 1.93 45986.41975 280 2.239 61890.38272 290 2.52 78400 300 2.775 95069.44444 310 3.007 111630.2346 320 3.216 127687.1111 330 3.403 142968.0123 340 3.565 156904.0123 350 3.7 169012.3457 360 3.803 178553.1975 370 3.87 184900 380 3.899 187681.4938 382.1 3.9 187777.7778 390 3.894 187200.4444 400 3.87 184900 410 3.829 181002.9753 420 3.774 175840.4444 430 3.706 169560.9383 440 3.629 162588.1605 450 3.542 154885.9753 460 3.449 146859.2716 470 3.35 138549.3827 480 3.247 130160.6049 490 3.142 121878.5679 500 3.034 113643.9012 510 2.926 105697.2346 520 2.817 97969 530 2.709 90601 540 2.603 83649.49383 550 2.497 76975.41975 560 2.394 70756 570 2.293 64911.71605 580 2.195 59481.79012 590 2.1 54444.44444 600 2.007 49729 610 1.917 45369 620 1.831 41389.64198 630 1.747 37679.12346 640 1.667 34307.2716 650 1.59 31211.11111 660 1.516 28373.53086 670 1.444 25742.41975 680 1.376 23375.01235 690 1.311 21218.77778 700 1.248 19228.44444 710 1.189 17453.34568 720 1.132 15820.04938 730 1.077 14320.11111 740 1.025 12970.67901 750 0.975 11736.11111 760 0.928 10631.90123 770 0.883 9625.790123 780 0.84 8711.111111 790 0.799 7881.493827 800 0.76 7130.864198 810 0.722 6435.604938 820 0.687 5826.777778 830 0.653 5264.308642 840 0.621 4761 850 0.59 4297.530864 860 0.561 3885.444444 870 0.534 3520.444444 880 0.507 3173.444444 890 0.482 2868.197531 900 0.458 2589.679012 910 0.436 2346.864198 920 0.414 2116 930 0.394 1916.493827 940 0.374 1726.864198 950 0.356 1564.641975 960 0.338 1410.419753 970 0.321 1272.111111 980 0.305 1148.45679 990 0.29 1038.271605