# # Data product developed by Dr. E. Thiemann from the # Laboratory for Atmospheric and Space Physics, Boulder, Colorado # in the frame of the PROBA2 guest investigator program. # # Please address your questions to E. Thiemann (thiemann@lasp.colorado.edu) and # to the LYRA Principal Investigator M. Dominique (marie.dominique@oma.be) # # PROBA2 data products are open to all. # Users should however refer to the following paper: http://arxiv.org/abs/1708.08833 # and acknowledge the instrument according to the rules described # at http://proba2.oma.be/data/termsOfUse in their papers and presentations # # Website reference http://proba2.oma.be/lyra/data/EarthAtmosphere/ # # Description: # Summed neutral N2 and O number density profiles, spanning altitudes between 150 and 400 km # retrieved from LYRA data acquired during occultations by the unit 3 (backup unit) zirconium # channel (bandpass: 1-2 nm + 6-20 nm). # # Radial distance is the distance from the center of Earth expressed in km to which the density corresponds. # Density O-N2 provides the summed number density of neutral O and N2 in units of radial distance and cm^-3. # The systematic error is a signed value (asymmetric) in fractional units and is primarily from the error made by # assuming that the absorption cross-sections of O and N2 are equal; a secondary source of systematic error is # from using a single-scale height atmosphere in the reference atmosphere used by the retrieval algorithm. # The random error is an unsigned value (to be applied symmetrically to the measurement) in fractional # units and gathers the uncertainties from solar spectra, solar variability and measurement noise. # Both uncertainties are described in http://arxiv.org/abs/1708.08833. # The Longitude and Latitude (in degrees) columns refer to the tangential point along the # line-of-sight, where most of the absorption occurs. # # Scale height = 63.928378 km # Date (UTC) = 2011-12-03T09:56:36.106 # Date (julian) = 2455898.91430679 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6505.3827 1.2721071e+11 0.071291027 0.033906344 103.79875 32.832512 6508.1571 1.0437925e+11 0.082949150 0.034742973 103.88031 32.680095 6510.9316 8.5579412e+10 0.094685773 0.035579603 103.96116 32.528471 6513.7060 7.0751718e+10 0.10657963 0.036416232 104.03738 32.381477 6516.4805 5.9410747e+10 0.11877087 0.037252861 104.11097 32.238048 6519.2550 5.1069251e+10 0.13146437 0.038089490 104.17872 32.102570 6522.0294 4.4786878e+10 0.14466035 0.038924953 104.24851 31.962977 6524.8039 3.9647284e+10 0.15123310 0.039712537 104.32472 31.810561 6527.5783 3.4856845e+10 0.15561566 0.041136338 104.40093 31.660354 6530.3528 3.0549190e+10 0.15905009 0.044322573 104.47714 31.513382 6533.1272 2.7015421e+10 0.16180384 0.047573655 104.54578 31.372947 6535.9017 2.4203945e+10 0.16174753 0.047833151 104.60868 31.237468 6538.6761 2.1900735e+10 0.16351926 0.049485924 104.67826 31.096219 6541.4506 1.9775163e+10 0.16389974 0.051180406 104.75446 30.949246 6544.2250 1.7714654e+10 0.16382743 0.051826908 104.83068 30.798639 6546.9995 1.5898804e+10 0.16427837 0.053286952 104.90690 30.646201 6549.7740 1.4426536e+10 0.16410489 0.054754999 104.97209 30.511814 6552.5484 1.3226551e+10 0.16308850 0.055448733 105.03499 30.381174 6555.3229 1.2198091e+10 0.16082402 0.054582084 105.10388 30.233954 6558.0973 1.1204542e+10 0.15792590 0.053156380 105.17464 30.081538 6560.8718 1.0215315e+10 0.15423847 0.051488297 105.24541 29.934153 6563.6462 9.3236913e+09 0.15129004 0.049180835 105.31548 29.788183 6566.4207 8.6164106e+09 0.14894646 0.046944908 105.37839 29.652705 6569.1951 8.0430801e+09 0.14713368 0.044865124 105.44145 29.516991 6571.9696 7.5348902e+09 0.14586736 0.044238462 105.51221 29.370018 6574.7440 7.0143468e+09 0.14379596 0.042497645 105.58298 29.223042 6577.5185 6.4654011e+09 0.14158179 0.039405944 105.65375 29.076046 6580.2929 5.9733287e+09 0.13919693 0.036250027 105.72180 28.933043 6583.0674 5.5747827e+09 0.13719040 0.034987550 105.78470 28.797565 6585.8419 5.2419916e+09 0.13488743 0.033297728 105.84980 28.658871 6588.6163 4.9329591e+09 0.13312627 0.033174112 105.92057 28.511897 6591.3908 4.6071732e+09 0.13051050 0.028760977 105.98892 28.364925 6594.1652 4.2778750e+09 0.12800491 0.026081827 106.05424 28.217952 6596.9397 4.0035198e+09 0.12498985 0.025723001 106.11517 28.080872 6599.7141 3.7773589e+09 0.12329001 0.024972681 106.17323 27.950231 6602.4886 3.5834681e+09 0.12231805 0.027099698 106.23814 27.807855 6605.2630 3.3883660e+09 0.12086980 0.026885709 106.30890 27.655440 6608.0375 3.1859554e+09 0.11811568 0.023731380 106.37585 27.506844 6610.8119 2.9892915e+09 0.11364426 0.024778773 106.44117 27.359871 6613.5864 2.7967589e+09 0.11148739 0.023788741 106.50650 27.212880 6616.3609 2.6272689e+09 0.10904152 0.023338935 106.57163 27.066343 6619.1353 2.4839073e+09 0.10775102 0.024558562 106.62969 26.935703 6621.9098 2.3623735e+09 0.10650506 0.024787903 106.68775 26.805062 6624.6842 2.2488392e+09 0.10480945 0.025228566 106.75279 26.658723 6627.4587 2.1288584e+09 0.10306650 0.025493987 106.81811 26.511751 6630.2331 2.0011685e+09 0.10194871 0.025928876 106.88343 26.364779 6633.0076 1.8874702e+09 0.10043091 0.026153576 106.94667 26.222495 6635.7820 1.7922745e+09 0.098697121 0.026517065 107.00473 26.091855 6638.5565 1.7090387e+09 0.097427991 0.025647398 107.06440 25.957616 6641.3309 1.6298531e+09 0.097924107 0.025149424 107.12971 25.810642 6644.1054 1.5494397e+09 0.096943084 0.025354997 107.19295 25.663661 6646.8798 1.4650408e+09 0.095723943 0.026375585 107.25284 25.516667 6649.6543 1.3837418e+09 0.094585653 0.026731764 107.31570 25.369685 6652.4288 1.3114423e+09 0.093960290 0.027368489 107.38102 25.222712 6655.2032 1.2441741e+09 0.092442627 0.027694183 107.43776 25.087326 6657.9777 1.1894046e+09 0.090103343 0.030035171 107.49098 24.956686 6660.7521 1.1375978e+09 0.087889280 0.032309637 107.55198 24.815549 6663.5266 1.0885200e+09 0.085858348 0.032337287 107.61730 24.668575 6666.3010 1.0399676e+09 0.085171156 0.026967254 107.67823 24.521603 6669.0755 9.8992088e+08 0.083435250 0.028278178 107.73811 24.374632 6671.8499 9.4322877e+08 0.083042453 0.026877461 107.79799 24.227659 6674.6244 8.9364771e+08 0.081333763 0.029481505 107.85787 24.080687 6677.3988 8.4924515e+08 0.078495605 0.031791220 107.91775 23.933714 6680.1733 8.0527347e+08 0.078421276 0.029478839 107.97762 23.788344 6682.9478 7.6247236e+08 0.079246872 0.031148662 108.03750 23.646814 6685.7222 7.2443770e+08 0.078882309 0.033467665 108.09434 23.510256 6688.4967 6.9161973e+08 0.075811539 0.033899836 108.14757 23.379598 6691.2711 6.6624733e+08 0.074121334 0.032937298 108.20340 23.242564 6694.0456 6.4147702e+08 0.072865471 0.031197160 108.26328 23.095593 6696.8200 6.1397986e+08 0.072544984 0.030016488 108.32316 22.948621 6699.5945 5.8625502e+08 0.070895925 0.031041900 108.38303 22.801648 6702.3689 5.5581635e+08 0.069159882 0.033171323 108.44291 22.658576 6705.1434 5.2922552e+08 0.069523034 0.036923516 108.50279 22.517047 6707.9178 5.0580685e+08 0.069077034 0.040055347 108.56267 22.370730 6710.6923 4.8261371e+08 0.067287384 0.040632003 108.62232 22.223987 6713.4667 4.6314769e+08 0.064528089 0.045374749 108.67675 22.082458 6716.2412 4.4147488e+08 0.062051547 0.048756628 108.73230 21.939811 6719.0157 4.2201513e+08 0.058985208 0.051354964 108.79218 21.792840 6721.7901 4.0323156e+08 0.059276274 0.050541963 108.85005 21.645859 6724.5646 3.8708775e+08 0.055567101 0.045212189 108.90450 21.498865 6727.3390 3.7173122e+08 0.052665877 0.040508717 108.96183 21.354775 6730.1135 3.5625239e+08 0.051303842 0.040534487 109.02170 21.213246 6732.8879 3.4124002e+08 0.049481198 0.043903673 109.07780 21.067936 6735.6624 3.2850595e+08 0.049996881 0.049996598 109.13224 20.920963 6738.4368 3.1665349e+08 0.051460456 0.059726068 109.19134 20.778657 6741.2113 3.0332263e+08 0.050185121 0.066361299 109.25126 20.636718 6743.9857 2.8772268e+08 0.044749805 0.077697236 109.31347 20.474967 6746.7602 2.7175824e+08 0.040659088 0.070149135 109.37247 20.319318 6749.5347 2.6100653e+08 0.038588739 0.072131545 109.42691 20.172346 6752.3091 2.5229965e+08 0.034723055 0.073776784 109.48134 20.028508 6755.0836 2.4406904e+08 0.032859402 0.074568710 109.53578 19.886979 6757.8580 2.3579502e+08 0.031045832 0.074136213 109.59021 19.741428 6760.6325 2.2602524e+08 0.031882677 0.077267358 109.64465 19.594455 6763.4069 2.1691494e+08 0.037699634 0.077677054 109.69908 19.452390 6766.1814 2.0492841e+08 0.040120731 0.080124024 109.75402 19.309555 6768.9558 1.9315854e+08 0.035213878 0.084295329 109.81623 19.147804 6771.7303 1.8645273e+08 0.030229050 0.091076401 109.87488 18.995298 6774.5047 1.7844508e+08 0.025299902 0.097805673 109.92932 18.853769 6777.2792 1.7477571e+08 0.020298976 0.10453494 109.98376 18.708851 6780.0536 1.6861318e+08 0.015334493 0.11126421 110.03820 18.561858 6782.8281 1.5940938e+08 0.010420494 0.11799349 110.09872 18.403326 6785.6026 1.5363001e+08 0.0054487681 0.12472276 110.15956 18.245144 6788.3770 1.4580673e+08 0.00050767877 0.13145203 110.21400 18.103594 6791.1515 1.4120216e+08 -0.0044918110 0.13818130 110.27108 17.955199 6793.9259 1.3708843e+08 -0.0095050716 0.14491057 110.33329 17.793448 6796.7004 1.3297199e+08 -0.014529041 0.15163984 110.38583 17.646487 6799.4748 1.2993827e+08 -0.019573666 0.15836911 110.43482 17.504958 6802.2493 1.2294020e+08 -0.024542366 0.16509838 110.49564 17.345345 6805.0237 1.1789468e+08 -0.029519220 0.17182765 110.55406 17.189395 6807.7982 1.1244778e+08 -0.034470223 0.17855693 110.60304 17.047865 6810.5726 1.0779941e+08 -0.039422759 0.18528620 110.65798 16.897239 6813.3471 1.0503215e+08 -0.044407175 0.19201547 110.72020 16.735488 6816.1216 98347817. -0.049354646 0.19874474 110.77717 16.573738 6818.8960 94485530. -0.054342551 0.20547401 110.83279 16.416740 6821.6705 90197636. -0.059330994 0.21220328 110.88723 16.275211 6824.4449 86804861. -0.064333490 0.21893255 110.94228 16.125635 6827.2194 86346191. -0.069356075 0.22566182 110.99827 15.963884 6829.9938 83878005. -0.074366094 0.23239109 111.05918 15.802132 6832.7683 81104153. -0.079374066 0.23912037 111.12025 15.640381 6835.5427 75085428. -0.084390081 0.24584964 111.17624 15.478630 6838.3172 70046296. -0.089422693 0.25257891 111.22820 15.328520 6841.0916 68055951. -0.094452207 0.25930818 111.27720 15.186991 6843.8661 67316030. -0.099486494 0.26603745 111.33136 15.035121 6846.6405 67476200. -0.10454125 0.27276672 111.38734 14.878775 6849.4150 65112645. -0.10971308 0.27949599 111.44334 14.717025 6852.1895 63733380. -0.11501895 0.28622526 111.50259 14.555273 6854.9639 61847230. -0.12114355 0.29295453 111.56480 14.393521 6857.7384 56812671. -0.13361314 0.29968381 111.62131 14.231770 6860.5128 52539478. -0.13257323 0.30641308 111.67730 14.071942 6863.2873 47192892. -0.12205984 0.31314235 111.73329 13.916412