# # 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 = 32.382331 km # Date (UTC) = 2017-01-13T10:05:24.945 # Date (julian) = 2457766.92042761 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6507.1609 8.0383500e+10 0.086257251 0.034442556 -30.601778 51.021622 6508.4135 7.5345857e+10 0.092783788 0.034820278 -30.668133 50.957724 6509.6661 6.8616138e+10 0.099123922 0.035198000 -30.734488 50.893826 6510.9187 6.3288365e+10 0.10566046 0.035575722 -30.800075 50.830697 6512.1713 5.8132173e+10 0.11222776 0.035953444 -30.863982 50.769247 6513.4240 5.3867185e+10 0.11896318 0.036331166 -30.927889 50.707798 6514.6766 5.0251466e+10 0.12584394 0.036708888 -30.991796 50.646349 6515.9292 4.6874531e+10 0.13279641 0.037086611 -31.057944 50.582055 6517.1818 4.3390221e+10 0.13974288 0.037464333 -31.130972 50.509028 6518.4344 3.9733215e+10 0.14664278 0.037842055 -31.203999 50.436001 6519.6870 3.6312689e+10 0.15355401 0.038219777 -31.277026 50.362973 6520.9396 3.3289106e+10 0.16050544 0.038597499 -31.342111 50.297888 6522.1922 3.0858440e+10 0.16699968 0.038967592 -31.403551 50.236448 6523.4449 2.8789679e+10 0.17043788 0.039289369 -31.464991 50.175008 6524.6975 2.6848908e+10 0.17442854 0.039674739 -31.526431 50.113568 6525.9501 2.5011963e+10 0.17588283 0.039673784 -31.589386 50.050613 6527.2027 2.3320579e+10 0.17973527 0.040863628 -31.653284 49.986716 6528.4553 2.1888848e+10 0.18103786 0.041803679 -31.717182 49.922819 6529.7079 2.0658504e+10 0.18309015 0.043363437 -31.781080 49.858921 6530.9605 1.9456061e+10 0.18301119 0.045173425 -31.846900 49.791564 6532.2131 1.8188588e+10 0.18492671 0.046862251 -31.914310 49.721345 6533.4658 1.6744592e+10 0.18452077 0.047717520 -31.981720 49.651126 6534.7184 1.5329286e+10 0.18443710 0.048145514 -32.049130 49.580908 6535.9710 1.4133576e+10 0.18234410 0.047803088 -32.110647 49.516928 6537.2236 1.3163706e+10 0.18294860 0.048790642 -32.172087 49.453030 6538.4762 1.2393024e+10 0.18183117 0.049388570 -32.233527 49.389132 6539.7288 1.1693535e+10 0.18137731 0.050525849 -32.294967 49.325233 6540.9814 1.1022302e+10 0.17940065 0.051317758 -32.354151 49.263592 6542.2340 1.0404374e+10 0.17819880 0.051091096 -32.413134 49.202152 6543.4867 9.8370630e+09 0.17651105 0.051509620 -32.472117 49.140711 6544.7393 9.2869690e+09 0.17543828 0.052244061 -32.531100 49.079271 6545.9919 8.7794970e+09 0.17299619 0.052464453 -32.590082 49.015745 6547.2445 8.2743162e+09 0.17233849 0.053380343 -32.649064 48.951848 6548.4971 7.8416323e+09 0.17038071 0.053816101 -32.708046 48.887950 6549.7497 7.4433741e+09 0.16917073 0.054730310 -32.767028 48.824053 6551.0023 7.0587281e+09 0.16691061 0.055236572 -32.826011 48.762073 6552.2550 6.7073130e+09 0.16578084 0.055522595 -32.884994 48.700633 6553.5076 6.3858002e+09 0.16349844 0.055079921 -32.943977 48.639192 6554.7602 6.1293481e+09 0.16158432 0.054848332 -33.002960 48.577752 6556.0128 5.8593503e+09 0.15869745 0.054011245 -33.065938 48.508072 6557.2654 5.5549491e+09 0.15701510 0.053699752 -33.130539 48.435044 6558.5180 5.2060520e+09 0.15463733 0.052797891 -33.195140 48.362016 6559.7706 4.8738587e+09 0.15287182 0.052300199 -33.258523 48.290365 6561.0232 4.5907318e+09 0.15034678 0.051361228 -33.315048 48.226467 6562.2759 4.3509327e+09 0.14886459 0.050617417 -33.371573 48.162570 6563.5285 4.1405044e+09 0.14659400 0.049317052 -33.428098 48.098672 6564.7811 3.9355944e+09 0.14501134 0.048417612 -33.484622 48.034976 6566.0337 3.7427780e+09 0.14280097 0.047163824 -33.541147 47.973536 6567.2863 3.5631629e+09 0.14162921 0.046375108 -33.597672 47.912096 6568.5389 3.3965616e+09 0.13985223 0.045276267 -33.654197 47.850656 6569.7915 3.2420902e+09 0.13860857 0.044903941 -33.710721 47.789173 6571.0441 3.1120626e+09 0.13674300 0.044491218 -33.767255 47.725277 6572.2968 2.9877032e+09 0.13528098 0.044060210 -33.823788 47.661369 6573.5494 2.8824026e+09 0.13310101 0.043216625 -33.880321 47.597461 6574.8020 2.7820016e+09 0.13128663 0.042469815 -33.936854 47.533554 6576.0546 2.6599243e+09 0.12901536 0.041308552 -33.998354 47.461034 6577.3072 2.5309864e+09 0.12722930 0.039737821 -34.060147 47.388006 6578.5598 2.3907710e+09 0.12495085 0.037765590 -34.121940 47.314979 6579.8124 2.2645740e+09 0.12314021 0.036623866 -34.180766 47.246402 6581.0650 2.1534169e+09 0.12083003 0.035576912 -34.234834 47.184962 6582.3177 2.0524460e+09 0.11922256 0.035207350 -34.288901 47.123522 6583.5703 1.9729844e+09 0.11709620 0.034733019 -34.342969 47.062082 6584.8229 1.8955779e+09 0.11531846 0.034067254 -34.396262 46.999868 6586.0755 1.8201905e+09 0.11320759 0.033170320 -34.447871 46.935969 6587.3281 1.7471777e+09 0.11197763 0.033231067 -34.499481 46.872071 6588.5807 1.6773297e+09 0.11054153 0.033185996 -34.551090 46.808173 6589.8333 1.6232984e+09 0.10911917 0.031392710 -34.603305 46.744275 6591.0860 1.5640962e+09 0.10716782 0.029104924 -34.657372 46.680378 6592.3386 1.5018047e+09 0.10581550 0.027744677 -34.711440 46.616480 6593.5912 1.4487163e+09 0.10416541 0.026552606 -34.765507 46.552583 6594.8438 1.4050742e+09 0.10252399 0.025709323 -34.819140 46.488686 6596.0964 1.3619400e+09 0.10037185 0.025726836 -34.870749 46.424789 6597.3490 1.3130520e+09 0.099045199 0.025612591 -34.922359 46.360891 6598.6016 1.2696037e+09 0.097600676 0.025119927 -34.973968 46.296994 6599.8542 1.2255042e+09 0.097156249 0.024981108 -35.025578 46.233362 6601.1069 1.1804503e+09 0.096656661 0.027096012 -35.077187 46.171922 6602.3595 1.1388386e+09 0.095870886 0.027209878 -35.128797 46.110482 6603.6121 1.0999456e+09 0.094630501 0.026300924 -35.180406 46.049042 6604.8647 1.0670157e+09 0.094067995 0.026584702 -35.232303 45.987149 6606.1173 1.0318805e+09 0.093290967 0.027293168 -35.291287 45.914121 6607.3699 9.7772476e+08 0.091960486 0.024976545 -35.350270 45.841093 6608.6225 9.2222552e+08 0.090011798 0.023715912 -35.409254 45.768065 6609.8751 8.7584692e+08 0.088258148 0.023965891 -35.463530 45.699408 6611.1278 8.3716270e+08 0.086174335 0.024876984 -35.512683 45.635511 6612.3804 8.0789152e+08 0.085320125 0.024036553 -35.561835 45.571614 6613.6330 7.7704718e+08 0.084665631 0.023805833 -35.610988 45.507716 6614.8856 7.4511024e+08 0.084060214 0.023330351 -35.660140 45.443819 6616.1382 7.1283895e+08 0.083141626 0.023303991 -35.709292 45.379920 6617.3908 6.8035995e+08 0.082960728 0.023568825 -35.758444 45.316022 6618.6434 6.5427274e+08 0.082672302 0.024256666 -35.807596 45.252124 6619.8960 6.3309422e+08 0.082476894 0.024742116 -35.856749 45.189063 6621.1487 6.1026588e+08 0.081899071 0.025040172 -35.905901 45.127623 6622.4013 5.8949623e+08 0.081193095 0.024651187 -35.955053 45.066183 6623.6539 5.6595652e+08 0.080159132 0.024734080 -36.004206 45.004743 6624.9065 5.4161813e+08 0.079693858 0.025347554 -36.053360 44.942632 6626.1591 5.2159499e+08 0.078844130 0.026388180 -36.102520 44.878726 6627.4117 5.0182062e+08 0.077692845 0.025475853 -36.151679 44.814819 6628.6643 4.8628629e+08 0.077106388 0.025972823 -36.200839 44.750912 6629.9170 4.6811397e+08 0.076418484 0.025943317 -36.250852 44.685153 6631.1696 4.4495792e+08 0.075344259 0.025947990 -36.304208 44.612137 6632.4222 4.2315200e+08 0.074687177 0.026082968 -36.357565 44.539122 6633.6748 3.9576083e+08 0.073968558 0.026270064 -36.410922 44.466106 6634.9274 3.7047078e+08 0.073419622 0.026394492 -36.461582 44.398943 6636.1800 3.4834528e+08 0.072528899 0.026479845 -36.510742 44.335036 6637.4326 3.3290121e+08 0.072011100 0.025949524 -36.559901 44.271129 6638.6852 3.2990760e+08 0.071280828 0.025641788 -36.609061 44.207222 6639.9379 3.1914395e+08 0.071616120 0.025292864 -36.656805 44.144731 6641.1905 3.0711770e+08 0.071877447 0.025148947 -36.703500 44.083291 6642.4431 2.9162398e+08 0.071882615 0.025169828 -36.750194 44.021851 6643.6957 2.7423315e+08 0.071497382 0.025297660 -36.796888 43.960410 6644.9483 2.6783620e+08 0.071233489 0.025446097 -36.843583 43.897729 6646.2009 2.5912225e+08 0.070653999 0.026024149 -36.890277 43.833830 6647.4535 2.4813828e+08 0.070313339 0.026676566 -36.936971 43.769932 6648.7061 2.4034796e+08 0.069735439 0.027436980 -36.983665 43.706034 6649.9588 2.3065243e+08 0.069769762 0.026312088 -37.029287 43.642136 6651.2114 2.2846607e+08 0.069478077 0.026646150 -37.073524 43.578239 6652.4640 2.2568782e+08 0.069372876 0.027378182 -37.117761 43.514342 6653.7166 2.1716659e+08 0.069103412 0.027891530 -37.161998 43.450445 6654.9692 2.0908767e+08 0.068524118 0.027623334 -37.209586 43.383197 6656.2218 2.0327463e+08 0.067409566 0.028218110 -37.262953 43.310170 6657.4744 1.9553520e+08 0.066714982 0.029451440 -37.316320 43.237143 6658.7270 1.8637281e+08 0.065925564 0.031350512 -37.369687 43.164116 6659.9797 1.7536049e+08 0.065490265 0.031630240 -37.415688 43.098453 6661.2323 1.6860174e+08 0.064678076 0.032653251 -37.459925 43.034554 6662.4849 1.6110158e+08 0.064151878 0.032772222 -37.504163 42.970656 6663.7375 1.5231580e+08 0.063477261 0.032278834 -37.548400 42.906757 6664.9901 1.4782663e+08 0.063641422 0.028583310 -37.592637 42.844673 6666.2427 1.4033220e+08 0.063624401 0.026955893 -37.636874 42.783233 6667.4953 1.4611029e+08 0.063215320 0.027285404 -37.681110 42.721793 6668.7480 1.4077140e+08 0.062551633 0.028132657 -37.725347 42.660353 6670.0006 1.2874253e+08 0.062870839 0.027328372 -37.773810 42.591164 6671.2532 1.2503314e+08 0.062913306 0.026868956 -37.824367 42.518137 6672.5058 1.1417205e+08 0.063013417 0.027172764 -37.874923 42.445110 6673.7584 1.1342119e+08 0.062657578 0.028593464 -37.924528 42.373073 6675.0110 1.1096511e+08 0.061839941 0.029819455 -37.966308 42.309175 6676.2636 1.0109509e+08 0.060662470 0.031883631 -38.008087 42.245277 6677.5162 98930760. 0.060208099 0.031624327 -38.049867 42.181379 6678.7689 94125649. 0.060005360 0.030422372 -38.091744 42.117480 6680.0215 91206400. 0.060760195 0.029446052 -38.135981 42.053583 6681.2741 93827352. 0.061295141 0.029867628 -38.180218 41.989686 6682.5267 89242029. 0.061882253 0.030826956 -38.224454 41.925789 6683.7793 81778523. 0.062235506 0.032330662 -38.268691 41.861892 6685.0319 76681579. 0.062401553 0.032738551 -38.310543 41.797993 6686.2845 73596815. 0.061867017 0.033926629 -38.352322 41.734095 6687.5371 77552216. 0.060480154 0.034043329 -38.394101 41.670196 6688.7898 75760014. 0.058908111 0.033967493 -38.435880 41.606298 6690.0424 73012048. 0.058484784 0.033111008 -38.483041 41.536702 6691.2950 70164721. 0.058049423 0.032931666 -38.530790 41.466483 6692.5476 66956208. 0.057805365 0.032129439 -38.578539 41.396265 6693.8002 65465313. 0.057371341 0.031329568 -38.624254 41.328199 6695.0528 59406575. 0.057804525 0.029849771 -38.666039 41.264292 6696.3054 56494667. 0.057614940 0.029802687 -38.707824 41.200385 6697.5580 53229088. 0.057406931 0.030161887 -38.749609 41.136479 6698.8107 53159285. 0.056243732 0.031330542 -38.791393 41.072574 6700.0633 54670228. 0.054871759 0.030714650 -38.833172 41.008677