# # 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 = 47.200565 km # Date (UTC) = 2014-01-19T10:35:15.318 # Date (julian) = 2456676.94114951 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6507.3485 6.4038713e+10 0.077531502 0.034499129 -37.060567 53.223760 6508.8468 6.1689836e+10 0.084888641 0.034950925 -37.157075 53.134146 6510.3450 5.8163896e+10 0.092189063 0.035402720 -37.266823 53.032236 6511.8433 5.4198026e+10 0.099508119 0.035854515 -37.376571 52.930325 6513.3415 5.0100021e+10 0.10686323 0.036306310 -37.476844 52.839245 6514.8398 4.6501250e+10 0.11440590 0.036758105 -37.570912 52.755256 6516.3380 4.3484664e+10 0.12217442 0.037209900 -37.664981 52.671267 6517.8363 4.0710170e+10 0.13009279 0.037661696 -37.759048 52.585170 6519.3345 3.8115480e+10 0.13814670 0.038113491 -37.853116 52.497821 6520.8328 3.5720370e+10 0.14633472 0.038565286 -37.947183 52.410473 6522.3311 3.3532205e+10 0.15373190 0.039003943 -38.036876 52.323124 6523.8293 3.1541547e+10 0.15775454 0.039384656 -38.124225 52.235775 6525.3276 2.9682471e+10 0.16222302 0.039744830 -38.211574 52.148426 6526.8258 2.7918353e+10 0.16582691 0.040533871 -38.301189 52.061078 6528.3241 2.6228415e+10 0.16845335 0.041699580 -38.391896 51.973730 6529.8223 2.4633763e+10 0.17170823 0.043545700 -38.482603 51.886381 6531.3206 2.3178537e+10 0.17308019 0.045695311 -38.570966 51.799033 6532.8189 2.1856341e+10 0.17556346 0.047368257 -38.658316 51.711683 6534.3171 2.0634876e+10 0.17602559 0.048033265 -38.745665 51.624334 6535.8154 1.9332761e+10 0.17507089 0.047870595 -38.843517 51.526482 6537.3136 1.7880400e+10 0.17555794 0.048833085 -38.945426 51.424573 6538.8119 1.6460679e+10 0.17430246 0.049552022 -39.044858 51.325141 6540.3101 1.5248417e+10 0.17391532 0.051000617 -39.132207 51.237793 6541.8084 1.4287094e+10 0.17215682 0.051064375 -39.219557 51.150445 6543.3066 1.3535678e+10 0.17082148 0.051462374 -39.306256 51.063097 6544.8049 1.2831660e+10 0.17001458 0.052297300 -39.390245 50.975747 6546.3032 1.2176903e+10 0.16818526 0.052713976 -39.474234 50.888398 6547.8014 1.1578941e+10 0.16756986 0.053592128 -39.558223 50.801049 6549.2997 1.0997454e+10 0.16629520 0.054271668 -39.642211 50.713701 6550.7979 1.0456683e+10 0.16523127 0.055185154 -39.726200 50.626354 6552.2962 9.9421019e+09 0.16470607 0.055512217 -39.809382 50.539005 6553.7944 9.4286241e+09 0.16310231 0.054935713 -39.890010 50.451656 6555.2927 8.9414125e+09 0.16220525 0.054607431 -39.970639 50.364306 6556.7910 8.4779353e+09 0.16081771 0.053896841 -40.051265 50.276961 6558.2892 8.0255292e+09 0.15926848 0.052992864 -40.131881 50.189628 6559.7875 7.6004313e+09 0.15779784 0.052298299 -40.212497 50.102296 6561.2857 7.1933393e+09 0.15558285 0.051231884 -40.293117 50.014958 6562.7840 6.8162637e+09 0.15409015 0.050133922 -40.373746 49.927608 6564.2822 6.4805717e+09 0.15203035 0.048643690 -40.454374 49.840259 6565.7805 6.1640463e+09 0.15030205 0.047432142 -40.535004 49.752910 6567.2787 5.8727791e+09 0.14907883 0.046381502 -40.615634 49.665562 6568.7770 5.6124832e+09 0.14738609 0.045057414 -40.696263 49.578214 6570.2753 5.3727329e+09 0.14657991 0.044803488 -40.775773 49.490866 6571.7735 5.1461653e+09 0.14543532 0.044292014 -40.853042 49.403517 6573.2718 4.9273129e+09 0.14412698 0.043439393 -40.930312 49.316168 6574.7700 4.7160553e+09 0.14291435 0.042485164 -41.007581 49.227620 6576.2683 4.5108832e+09 0.14132305 0.041062596 -41.084851 49.136913 6577.7665 4.3106737e+09 0.13997774 0.039016328 -41.162121 49.046206 6579.2648 4.1244993e+09 0.13815706 0.036924929 -41.234598 48.960930 6580.7630 3.9701561e+09 0.13663042 0.035815585 -41.299269 48.884501 6582.2613 3.8564208e+09 0.13530854 0.035222686 -41.363939 48.808072 6583.7596 3.7580222e+09 0.13356716 0.034637210 -41.428610 48.731643 6585.2578 3.6575655e+09 0.13216846 0.033764653 -41.505609 48.644530 6586.7561 3.5409727e+09 0.13056989 0.033161523 -41.582879 48.557181 6588.2543 3.4106270e+09 0.12924840 0.033294996 -41.660120 48.469833 6589.7526 3.2803382e+09 0.12761269 0.031552913 -41.734053 48.382484 6591.2508 3.1468609e+09 0.12549125 0.028918863 -41.807963 48.295135 6592.7491 3.0207563e+09 0.12383330 0.027345922 -41.881874 48.207701 6594.2474 2.9046037e+09 0.12178571 0.026036738 -41.955783 48.116993 6595.7456 2.7905122e+09 0.11949569 0.025700893 -42.029692 48.026284 6597.2439 2.6836489e+09 0.11762663 0.025645772 -42.103438 47.935740 6598.7421 2.5825870e+09 0.11577590 0.025052849 -42.173990 47.848392 6600.2404 2.4833335e+09 0.11528007 0.025484052 -42.244542 47.761044 6601.7386 2.3847156e+09 0.11454273 0.027393546 -42.315094 47.673696 6603.2369 2.2900418e+09 0.11346186 0.026523034 -42.385644 47.586346 6604.7351 2.1974261e+09 0.11290024 0.026507783 -42.456194 47.498997 6606.2334 2.1061270e+09 0.11244715 0.027084543 -42.526745 47.411648 6607.7317 2.0209642e+09 0.11096320 0.024262240 -42.597295 47.324300 6609.2299 1.9384954e+09 0.10877696 0.023774228 -42.667846 47.236952 6610.7282 1.8600338e+09 0.10674432 0.024698732 -42.738396 47.149204 6612.2264 1.7841356e+09 0.10563213 0.024151572 -42.808947 47.058496 6613.7247 1.7013175e+09 0.10502481 0.023839479 -42.879497 46.967787 6615.2229 1.6229464e+09 0.10420375 0.023258391 -42.948791 46.879113 6616.7212 1.5593680e+09 0.10314836 0.023395491 -43.010523 46.802686 6618.2195 1.5109480e+09 0.10261581 0.023936510 -43.072254 46.726258 6619.7177 1.4760214e+09 0.10185404 0.024699086 -43.133985 46.649830 6621.2160 1.4307997e+09 0.10088634 0.025017864 -43.199759 46.565314 6622.7142 1.3874735e+09 0.099644911 0.024567890 -43.266950 46.477965 6624.2125 1.3374595e+09 0.098101438 0.024976049 -43.334140 46.390615 6625.7107 1.2834991e+09 0.097230168 0.026245724 -43.401331 46.300700 6627.2090 1.2359206e+09 0.095412086 0.025397540 -43.468523 46.209992 6628.7072 1.1859257e+09 0.094480269 0.025990244 -43.535714 46.119284 6630.2055 1.1420188e+09 0.093232942 0.025928808 -43.602905 46.031221 6631.7038 1.1030466e+09 0.091636786 0.026002253 -43.670097 45.943874 6633.2020 1.0610707e+09 0.090476063 0.026187523 -43.737288 45.856526 6634.7003 1.0168969e+09 0.089280999 0.026377924 -43.801755 45.769178 6636.1985 9.7974903e+08 0.088035604 0.026472656 -43.865586 45.681830 6637.6968 9.3910466e+08 0.087410540 0.025820148 -43.929417 45.594482 6639.1950 9.0006288e+08 0.086838984 0.025558363 -43.993249 45.504330 6640.6933 8.6385749e+08 0.087451327 0.025185826 -44.057082 45.413622 6642.1916 8.2820708e+08 0.087446892 0.025159535 -44.120915 45.322913 6643.6898 7.9830202e+08 0.086727742 0.025296771 -44.184746 45.235086 6645.1881 7.6952019e+08 0.086151322 0.025539786 -44.248577 45.147736 6646.6863 7.4205543e+08 0.085265777 0.026275409 -44.312409 45.060387 6648.1846 7.1620763e+08 0.084543776 0.027087841 -44.369209 44.982661 6649.6828 6.9386477e+08 0.083880707 0.026692436 -44.425060 44.906233 6651.1811 6.7366788e+08 0.083402206 0.026622944 -44.480911 44.829805 6652.6793 6.6029823e+08 0.082966094 0.027437436 -44.540586 44.746534 6654.1776 6.4658347e+08 0.082097921 0.027960566 -44.604419 44.655826 6655.6759 6.2924986e+08 0.080717840 0.027889482 -44.668251 44.565118 6657.1741 6.0698228e+08 0.079393080 0.029103078 -44.730394 44.476098 6658.6724 5.8083558e+08 0.078248352 0.031253541 -44.790866 44.388749 6660.1706 5.6004340e+08 0.077284660 0.031781089 -44.851339 44.301400 6661.6689 5.4090109e+08 0.076049315 0.032875626 -44.911811 44.214051 6663.1671 5.2244993e+08 0.075107417 0.032436894 -44.972283 44.126703 6664.6654 5.0686922e+08 0.074372156 0.029771437 -45.032756 44.039354 6666.1637 4.9028953e+08 0.074124370 0.026940485 -45.093228 43.950160 6667.6619 4.7139111e+08 0.073548749 0.027346588 -45.153700 43.859452 6669.1602 4.5522382e+08 0.072598179 0.028191204 -45.214172 43.768743 6670.6584 4.3395662e+08 0.072841637 0.027023597 -45.274644 43.679960 6672.1567 4.1734754e+08 0.072700713 0.026970411 -45.335115 43.592612 6673.6549 4.0056938e+08 0.072266911 0.028438716 -45.395585 43.505265 6675.1532 3.8562370e+08 0.071090487 0.030091768 -45.451549 43.424428 6676.6514 3.7569664e+08 0.069499508 0.032133576 -45.504461 43.347999 6678.1497 3.6670896e+08 0.069053552 0.030836488 -45.557373 43.271570 6679.6480 3.6134301e+08 0.069021570 0.029732329 -45.611101 43.192365 6681.1462 3.5232530e+08 0.069681715 0.029769530 -45.668215 43.101657 6682.6445 3.4164353e+08 0.070154847 0.030916942 -45.725328 43.010949 6684.1427 3.2885240e+08 0.070217602 0.032661334 -45.782441 42.920972 6685.6410 3.1639614e+08 0.069970677 0.033381872 -45.839553 42.833624 6687.1392 3.0367808e+08 0.068599806 0.034265246 -45.896665 42.746276 6688.6375 2.9273857e+08 0.066737066 0.033932346 -45.953777 42.658927 6690.1357 2.8285709e+08 0.065921380 0.033100307 -46.010891 42.571578 6691.6340 2.7333151e+08 0.065264955 0.032851679 -46.068004 42.484229 6693.1323 2.6351933e+08 0.064880854 0.031558715 -46.125116 42.395991 6694.6305 2.5542185e+08 0.064489733 0.030377322 -46.182228 42.305284 6696.1288 2.4806985e+08 0.064439541 0.029729289 -46.239340 42.214577 6697.6270 2.4249899e+08 0.063986900 0.030170617 -46.296452 42.124837 6699.1253 2.3240896e+08 0.063137302 0.031474828 -46.353565 42.037488 6700.6235 2.1886429e+08 0.062218427 0.031130217 -46.410678 41.950139 6702.1218 2.0980875e+08 0.061537348 0.032973987 -46.466745 41.862790 6703.6201 2.0284262e+08 0.062125050 0.035226810 -46.520498 41.775443 6705.1183 1.9961035e+08 0.062465719 0.036878939 -46.574250 41.688095 6706.6166 1.9153863e+08 0.062492610 0.039519491 -46.626737 41.603419 6708.1148 1.8835366e+08 0.062431071 0.040168616 -46.676709 41.524051 6709.6131 1.8201594e+08 0.061843057 0.040742595 -46.726681 41.444682 6711.1113 1.8037728e+08 0.060551451 0.040818902 -46.776653 41.365314 6712.6096 1.8030402e+08 0.059091791 0.042961767 -46.830153 41.278499 6714.1078 1.7503379e+08 0.057526685 0.047311516 -46.883906 41.191150 6715.6061 1.7097282e+08 0.056350323 0.047998494 -46.937659 41.103801 6717.1044 1.6553171e+08 0.054786463 0.049867813 -46.991412 41.016453 6718.6026 1.5979907e+08 0.053036028 0.050750944 -47.045164 40.929105 6720.1009 1.5846743e+08 0.052448546 0.050408079 -47.098917 40.841757 6721.5991 1.5869317e+08 0.052161783 0.050484419 -47.149379 40.751117 6723.0974 1.5706274e+08 0.050780991 0.049423257 -47.199772 40.660409 6724.5956 1.5599030e+08 0.047477738 0.044952675 -47.250197 40.569731 6726.0939 1.5376992e+08 0.044855166 0.040952214 -47.303930 40.482364 6727.5922 1.5003655e+08 0.043651493 0.040171468 -47.357683 40.395016 6729.0904 1.4703152e+08 0.042649187 0.040985167 -47.411346 40.307668 6730.5887 1.4449686e+08 0.040653770 0.041186035 -47.461740 40.220319 6732.0869 1.3837635e+08 0.038726494 0.043756211 -47.512134 40.132970 6733.5852 1.3725006e+08 0.037338085 0.047101410 -47.562696 40.045452 6735.0834 1.3674192e+08 0.037155619 0.049382004 -47.616449 39.954743 6736.5817 1.3408617e+08 0.037604157 0.052554121 -47.670202 39.864034 6738.0799 1.3322319e+08 0.037699039 0.057761234 -47.723708 39.773573 6739.5782 1.2598605e+08 0.036605278 0.063534162 -47.774101 39.686225 6741.0765 1.2183361e+08 0.034629426 0.065976756 -47.824493 39.598877 6742.5747 1.2109037e+08 0.031437501 0.070011153 -47.874886 39.511529 6744.0730 1.1150541e+08 0.026346399 0.077849853 -47.925280 39.424180 6745.5712 1.0802965e+08 0.024197940 0.078807026 -47.975674 39.336831 6747.0695 99894018. 0.017373925 0.067337241 -48.026068 39.249482 6748.5677 92391792. 0.014440420 0.070003798 -48.076460 39.162134 6750.0660 89176358. 0.0081943122 0.072116823 -48.126853 39.074786 6751.5643 81884998. -0.00073780936 0.073950240 -48.176762 38.986955 6753.0625 74633777. -0.017548522 0.073179578 -48.223797 38.896247 6754.5608 71303568. -0.098360948 0.075311692 -48.270832 38.805539 6756.0590 59301773. -0.050464135 0.074318778 -48.318428 38.715393 6757.5573 55383971. 0.12254608 0.075048870 -48.368821 38.628044