# # 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 = 53.207943 km # Date (UTC) = 2013-01-04T10:44:49.155 # Date (julian) = 2456296.94779114 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6502.4793 5.0504767e+10 0.053603564 0.033030822 92.107424 37.239968 6504.4532 4.6314664e+10 0.062409787 0.033626059 92.169401 37.135386 6506.4271 4.2467051e+10 0.071477482 0.034221296 92.230742 37.032939 6508.4011 3.9420839e+10 0.081026509 0.034816533 92.289264 36.939993 6510.3750 3.6911731e+10 0.091009194 0.035411770 92.347785 36.847046 6512.3490 3.4606596e+10 0.10133232 0.036007006 92.407267 36.750861 6514.3229 3.2285867e+10 0.11189529 0.036602243 92.469233 36.646294 6516.2968 2.9893405e+10 0.12264091 0.037197480 92.531200 36.541728 6518.2708 2.7637052e+10 0.13364393 0.037792717 92.593165 36.437162 6520.2447 2.5545542e+10 0.14490055 0.038387954 92.655129 36.332596 6522.2187 2.3628709e+10 0.15578785 0.038974512 92.717093 36.228031 6524.1926 2.1814969e+10 0.16182961 0.039495386 92.779060 36.123464 6526.1666 2.0126063e+10 0.16665600 0.039842698 92.841027 36.018897 6528.1405 1.8624319e+10 0.17215929 0.041553938 92.899326 35.920517 6530.1144 1.7385493e+10 0.17671034 0.043988904 92.954404 35.827570 6532.0884 1.6345497e+10 0.17992549 0.046758021 93.009482 35.734623 6534.0623 1.5368786e+10 0.18093807 0.047961990 93.068883 35.634385 6536.0363 1.4377149e+10 0.18022605 0.047822944 93.130850 35.529818 6538.0102 1.3363668e+10 0.18087876 0.049161648 93.192641 35.425251 6539.9841 1.2382653e+10 0.18021005 0.050834907 93.250740 35.320668 6541.9581 1.1450276e+10 0.17738892 0.051015831 93.308839 35.216086 6543.9320 1.0648071e+10 0.17486992 0.051626507 93.365538 35.116899 6545.9060 9.9666039e+09 0.17259641 0.052463684 93.420619 35.023952 6547.8799 9.4255053e+09 0.17119220 0.053621977 93.475699 34.931006 6549.8538 8.9245205e+09 0.16950792 0.054836420 93.532463 34.831566 6551.8278 8.4135240e+09 0.16751579 0.055526318 93.590557 34.726999 6553.8017 7.8917065e+09 0.16511918 0.054932047 93.648650 34.622432 6555.7757 7.3563832e+09 0.16301612 0.054201613 93.706743 34.521649 6557.7496 6.8580080e+09 0.16116700 0.053396246 93.764836 34.420956 6559.7236 6.4227647e+09 0.15866177 0.052305512 93.820381 34.323320 6561.6975 6.0609036e+09 0.15576439 0.051028969 93.872015 34.230373 6563.6714 5.7633354e+09 0.15275472 0.049151666 93.923650 34.137426 6565.6454 5.4786085e+09 0.15027181 0.047585559 93.978448 34.038788 6567.6193 5.1649590e+09 0.14831387 0.046093535 94.036541 33.934222 6569.5933 4.8592821e+09 0.14626199 0.044891037 94.094634 33.829655 6571.5672 4.5727076e+09 0.14424128 0.044348360 94.146874 33.735624 6573.5411 4.3413268e+09 0.14163673 0.043223225 94.198518 33.642665 6575.5151 4.1505563e+09 0.13893707 0.041857913 94.250194 33.549651 6577.4890 3.9662728e+09 0.13595368 0.039452226 94.308276 33.445103 6579.4630 3.7751884e+09 0.13255217 0.036815982 94.366370 33.340536 6581.4369 3.5720175e+09 0.12959783 0.035464306 94.422832 33.237600 6583.4109 3.3676045e+09 0.12726583 0.034813711 94.477051 33.136907 6585.3848 3.1841525e+09 0.12523752 0.033663139 94.531271 33.036214 6587.3587 3.0242450e+09 0.12363477 0.033237851 94.580435 32.942020 6589.3327 2.8956991e+09 0.12181460 0.032385976 94.628629 32.849073 6591.3066 2.7861331e+09 0.11949794 0.028855926 94.676824 32.756126 6593.2806 2.6732967e+09 0.11753672 0.026841385 94.734264 32.652325 6595.2545 2.5574522e+09 0.11526007 0.025649964 94.792358 32.547759 6597.2284 2.4350690e+09 0.11305450 0.025650639 94.849087 32.443192 6599.2024 2.3107077e+09 0.11152972 0.024941903 94.903307 32.338625 6601.1763 2.1914638e+09 0.11151699 0.027128729 94.957526 32.234058 6603.1503 2.0830415e+09 0.11052050 0.026574316 95.007112 32.141080 6605.1242 1.9939392e+09 0.10976680 0.026769244 95.055312 32.051564 6607.0981 1.9209158e+09 0.10833768 0.025513186 95.103513 31.962049 6609.0721 1.8454315e+09 0.10529432 0.023727346 95.156923 31.859508 6611.0460 1.7654444e+09 0.10244259 0.024929101 95.211142 31.754941 6613.0200 1.6847941e+09 0.10142305 0.023580919 95.264264 31.651471 6614.9939 1.6008433e+09 0.10019202 0.023255724 95.314610 31.550778 6616.9679 1.5169705e+09 0.098772352 0.023434204 95.364956 31.450084 6618.9418 1.4407460e+09 0.097969392 0.024481965 95.413793 31.354823 6620.9157 1.3818560e+09 0.097012776 0.025062294 95.461987 31.261876 6622.8897 1.3373480e+09 0.095323268 0.024521189 95.510182 31.168929 6624.8636 1.2934185e+09 0.093665877 0.025324602 95.563176 31.066729 6626.8376 1.2378214e+09 0.091778826 0.025523769 95.617399 30.962162 6628.8115 1.1814556e+09 0.090881729 0.026032574 95.670790 30.858425 6630.7854 1.1256221e+09 0.089703987 0.025930237 95.721136 30.757732 6632.7594 1.0713808e+09 0.088776700 0.026123402 95.771482 30.657039 6634.7333 1.0212212e+09 0.087732945 0.026380335 95.821828 30.553898 6636.7073 9.7201652e+08 0.086608826 0.026275091 95.872173 30.449331 6638.6812 9.2990554e+08 0.085865258 0.025641964 95.922412 30.345518 6640.6552 8.9269199e+08 0.086466240 0.025190493 95.970613 30.256001 6642.6291 8.5940433e+08 0.086391109 0.025177440 96.018814 30.166485 6644.6030 8.3189000e+08 0.085500620 0.025408781 96.067327 30.074778 6646.5770 8.0330596e+08 0.084525212 0.026218810 96.117676 29.970211 6648.5509 7.7296843e+08 0.083563632 0.027333071 96.168025 29.865644 6650.5249 7.4043572e+08 0.083166557 0.026375392 96.218372 29.763260 6652.4988 7.1054768e+08 0.082773828 0.027387762 96.268717 29.662566 6654.4727 6.8181363e+08 0.081928272 0.027834833 96.319063 29.561872 6656.4467 6.4848380e+08 0.080277058 0.028415470 96.369409 29.457379 6658.4206 6.1651541e+08 0.078995359 0.030807068 96.419755 29.352813 6660.3946 5.8975564e+08 0.077754818 0.031984640 96.466493 29.254261 6662.3685 5.6757747e+08 0.076448901 0.032837516 96.507803 29.164756 6664.3425 5.4903970e+08 0.075327654 0.030953078 96.549114 29.075252 6666.3164 5.2987294e+08 0.075210465 0.026970248 96.594892 28.980215 6668.2903 5.1122382e+08 0.074319111 0.027727699 96.645238 28.879521 6670.2643 4.9595395e+08 0.073936116 0.027206199 96.695583 28.778828 6672.2382 4.7784107e+08 0.073733895 0.027017673 96.745939 28.674586 6674.2122 4.5904296e+08 0.072995800 0.029133759 96.796295 28.570004 6676.1861 4.3965254e+08 0.071069770 0.031833663 96.845367 28.466707 6678.1600 4.2213738e+08 0.070387645 0.030829572 96.891839 28.366014 6680.1340 4.0578773e+08 0.070808706 0.029470348 96.938311 28.265320 6682.1079 3.8936643e+08 0.071579469 0.030507000 96.987685 28.164626 6684.0819 3.7394019e+08 0.071840893 0.032658246 97.038034 28.063932 6686.0558 3.5745509e+08 0.071410139 0.033793553 97.087737 27.962594 6688.0297 3.3880320e+08 0.069305278 0.033792057 97.134210 27.858027 6690.0037 3.2326175e+08 0.067620007 0.033115441 97.180682 27.753459 6691.9776 3.0882526e+08 0.066716910 0.032770607 97.224138 27.657695 6693.9516 2.9958291e+08 0.065850827 0.031277641 97.265448 27.568192 6695.9255 2.9410945e+08 0.065744532 0.029689468 97.306759 27.478688 6697.8995 2.8495808e+08 0.065040781 0.030205093 97.351579 27.381581 6699.8734 2.7764659e+08 0.063590593 0.030784538 97.398054 27.280887 6701.8473 2.6617430e+08 0.061989493 0.032652729 97.444528 27.180194 6703.8213 2.5292178e+08 0.062305659 0.035730334 97.491001 27.079500 6705.7952 2.4189333e+08 0.062381659 0.038082345 97.537473 26.978806 6707.7692 2.3119238e+08 0.062092624 0.040076645 97.583946 26.876117 6709.7431 2.2593531e+08 0.061103319 0.040659894 97.630422 26.771549 6711.7170 2.1879123e+08 0.059205373 0.041508032 97.676897 26.666982 6713.6910 2.1095828e+08 0.057301021 0.046185768 97.723379 26.566016 6715.6649 2.0448803e+08 0.055723762 0.048058656 97.769861 26.465307 6717.6389 1.9574333e+08 0.053932431 0.049834751 97.816339 26.364603 6719.6128 1.9016426e+08 0.052512120 0.050787626 97.862811 26.263909 6721.5868 1.8153484e+08 0.052886156 0.050480690 97.909283 26.163216 6723.5607 1.7483592e+08 0.051489334 0.049681651 97.955758 26.062522 6725.5346 1.6846129e+08 0.047702817 0.041242060 98.002233 25.961828 6727.5086 1.6230307e+08 0.046710098 0.040282819 98.047982 25.861135 6729.4825 1.5914672e+08 0.046040720 0.040723818 98.090584 25.760442 6731.4565 1.5584957e+08 0.044463898 0.042658459 98.133185 25.659749 6733.4304 1.5528755e+08 0.043466427 0.046261067 98.178129 25.559055 6735.4043 1.5258933e+08 0.044217589 0.049722669 98.224602 25.458361 6737.3783 1.4842109e+08 0.045661374 0.055340590 98.271125 25.357333 6739.3522 1.4273306e+08 0.046076323 0.063257605 98.319814 25.242252 6741.3262 1.3545370e+08 0.044757052 0.066688931 98.368502 25.127171 6743.3001 1.3043841e+08 0.041138986 0.073071945 98.415500 25.023080 6745.2740 1.2741060e+08 0.038680367 0.078682094 98.461975 24.922386 6747.2480 1.2139085e+08 0.034240983 0.067275788 98.507746 24.821693 6749.2219 1.1494748e+08 0.033855369 0.072217169 98.550347 24.720999 6751.1959 1.1044933e+08 0.031144671 0.073794486 98.592948 24.620305 6753.1698 1.0845036e+08 0.028811999 0.073526834 98.635550 24.519611 6755.1438 1.0807503e+08 0.027088558 0.074542319 98.678151 24.418917 6757.1177 1.0070282e+08 0.024818487 0.076382882 98.720821 24.318222 6759.0916 96615959. 0.025854304 0.075842068 98.767294 24.217529 6761.0656 96196006. 0.026415832 0.077973643 98.813766 24.116835 6763.0395 96731589. 0.031478606 0.076558122 98.861203 24.009875 6765.0135 94636370. 0.033795618 0.079533650 98.909891 23.894794 6766.9874 87620567. 0.033764038 0.081947270 98.957508 23.782246 6768.9613 81224760. 0.029352776 0.084315167 99.000116 23.681538 6770.9353 77223351. 0.025791205 0.089148178 99.042723 23.580830 6772.9092 73528047. 0.022241506 0.093935854 99.085327 23.480131 6774.8832 71504523. 0.018664752 0.098723530 99.127929 23.379437 6776.8571 70154655. 0.015051285 0.10351121 99.170606 23.278564 6778.8311 68197590. 0.011361736 0.10829888 99.219295 23.163483 6780.8050 66666777. 0.0075506092 0.11308656 99.267983 23.048402 6782.7789 64033122. 0.0034978280 0.11787423 99.309169 22.947074 6784.7529 60234068. -0.0016689118 0.12266191 99.347897 22.850252 6786.7268 54753045. -0.014862910 0.12744958 99.387288 22.752768 6788.7008 50655097. -0.011345025 0.13223726 99.429889 22.652075 6790.6747 50232545. 0.0028713985 0.13702494 99.472491 22.551381