# # 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 = 43.174142 km # Date (UTC) = 2015-11-15T09:08:33.751 # Date (julian) = 2457341.88094619 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6513.7666 5.1319430e+10 0.11593359 0.036434479 -2.7202936 66.130408 6515.7431 4.6579971e+10 0.12564976 0.037030514 -2.9914781 66.037421 6517.7197 4.2301027e+10 0.13548965 0.037626549 -3.2485423 65.948779 6519.6963 3.8859295e+10 0.14556772 0.038222584 -3.5036128 65.860136 6521.6729 3.5995079e+10 0.15586260 0.038818619 -3.7562439 65.771492 6523.6495 3.3179082e+10 0.16147296 0.039340090 -4.0160221 65.679989 6525.6261 3.0306945e+10 0.16573493 0.039710760 -4.3055958 65.576572 6527.6027 2.7516909e+10 0.16991009 0.041154024 -4.5844294 65.476990 6529.5793 2.4924605e+10 0.17269190 0.043158509 -4.8326292 65.388348 6531.5559 2.2817733e+10 0.17477604 0.046037736 -5.0807994 65.299692 6533.5324 2.1084269e+10 0.17637516 0.047745861 -5.3201341 65.206615 6535.5090 1.9485346e+10 0.17648932 0.048003480 -5.5594688 65.113537 6537.4856 1.7887452e+10 0.17698562 0.048914176 -5.8247470 65.012734 6539.4622 1.6324398e+10 0.17667448 0.050203124 -6.0988080 64.909317 6541.4388 1.4850153e+10 0.17538569 0.051184229 -6.3374214 64.814310 6543.4154 1.3624305e+10 0.17403663 0.051490914 -6.5678927 64.721236 6545.3920 1.2661763e+10 0.17264817 0.052459079 -6.7983635 64.628161 6547.3686 1.1791436e+10 0.17093339 0.053427523 -7.0288340 64.535087 6549.3452 1.1026819e+10 0.16851340 0.054318020 -7.2566391 64.440680 6551.3217 1.0346888e+10 0.16627938 0.055348688 -7.4782461 64.343172 6553.2983 9.6922859e+09 0.16424293 0.055185100 -7.7014956 64.245172 6555.2749 9.0086463e+09 0.16221253 0.054622366 -7.9600433 64.136582 6557.2515 8.3308117e+09 0.16012073 0.053708460 -8.2135257 64.029708 6559.2281 7.7028714e+09 0.15747601 0.052361436 -8.4262679 63.936634 6561.2047 7.2049311e+09 0.15479433 0.051271816 -8.6390101 63.843560 6563.1813 6.7895762e+09 0.15248321 0.049718674 -8.8517525 63.746698 6565.1579 6.4012607e+09 0.15029213 0.048139141 -9.0644951 63.649190 6567.1345 6.0353099e+09 0.14823524 0.046503505 -9.2745865 63.551683 6569.1110 5.6952356e+09 0.14610596 0.044859651 -9.4828965 63.454176 6571.0876 5.3902121e+09 0.14449504 0.044479342 -9.6912065 63.356668 6573.0642 5.1166058e+09 0.14263141 0.043605948 -9.8995165 63.259161 6575.0408 4.8676642e+09 0.14040520 0.042333766 -10.107068 63.161654 6577.0174 4.6189557e+09 0.13779427 0.040193049 -10.306514 63.064148 6578.9940 4.3785273e+09 0.13462506 0.037079998 -10.505960 62.966642 6580.9706 4.1509437e+09 0.13200425 0.035623804 -10.705378 62.869149 6582.9472 3.9483209e+09 0.12979265 0.035036045 -10.904789 62.771658 6584.9237 3.7660226e+09 0.12721765 0.034012310 -11.101682 62.671620 6586.9003 3.5990434e+09 0.12444022 0.033159658 -11.296697 62.569681 6588.8769 3.4206598e+09 0.12174212 0.033087078 -11.500362 62.464001 6590.8535 3.2106138e+09 0.11864732 0.029474395 -11.722713 62.350239 6592.8301 2.9957335e+09 0.11601766 0.027267242 -11.932910 62.241001 6594.8067 2.7946117e+09 0.11341391 0.025729688 -12.123491 62.139062 6596.7833 2.6331736e+09 0.11079383 0.025723713 -12.312953 62.037683 6598.7599 2.5021939e+09 0.10908113 0.025044377 -12.494671 61.940177 6600.7365 2.3680260e+09 0.10907133 0.026503897 -12.676388 61.842671 6602.7130 2.2447169e+09 0.10833900 0.026908148 -12.858105 61.741307 6604.6896 2.1234188e+09 0.10746990 0.026480759 -13.039823 61.639367 6606.6662 2.0126779e+09 0.10663793 0.026306780 -13.221540 61.537427 6608.6428 1.9068864e+09 0.10409121 0.023715376 -13.403257 61.435489 6610.6194 1.8081277e+09 0.10137903 0.024594802 -13.581805 61.333550 6612.5960 1.7132588e+09 0.099963826 0.023875451 -13.754658 61.231611 6614.5726 1.6224401e+09 0.098910630 0.023546008 -13.927512 61.129672 6616.5492 1.5369442e+09 0.097478594 0.023368491 -14.100365 61.027733 6618.5258 1.4525411e+09 0.096838980 0.024167804 -14.273218 60.925795 6620.5023 1.3811125e+09 0.096044785 0.024929077 -14.446071 60.823856 6622.4789 1.3116544e+09 0.094661640 0.024630517 -14.618924 60.721917 6624.4555 1.2438407e+09 0.092941768 0.025106148 -14.789167 60.617368 6626.4321 1.1811748e+09 0.091352257 0.026040356 -14.957588 60.510996 6628.4087 1.1190204e+09 0.089854155 0.025869031 -15.124535 60.406098 6630.3853 1.0638776e+09 0.088265630 0.025929251 -15.288524 60.304160 6632.3619 1.0149320e+09 0.086536201 0.026075737 -15.452174 60.201883 6634.3385 9.6302739e+08 0.084916220 0.026351532 -15.611731 60.095513 6636.3151 9.1659834e+08 0.083296787 0.026427405 -15.771287 59.989143 6638.2916 8.7115450e+08 0.082276956 0.025658936 -15.930845 59.886406 6640.2682 8.3149396e+08 0.082422972 0.025237834 -16.090402 59.784467 6642.2448 7.9606997e+08 0.082558662 0.025161715 -16.249959 59.680028 6644.2214 7.5817236e+08 0.081797807 0.025367536 -16.409516 59.573657 6646.1980 7.2581439e+08 0.081025298 0.026022636 -16.566346 59.468648 6648.1746 6.9228388e+08 0.080276991 0.027081152 -16.717039 59.366710 6650.1512 6.6812080e+08 0.079722214 0.026289845 -16.867958 59.264544 6652.1278 6.4162399e+08 0.079277843 0.027285673 -17.023082 59.158172 6654.1044 6.0444987e+08 0.078750927 0.027991771 -17.178206 59.051800 6656.0809 5.7548775e+08 0.077174808 0.028094457 -17.326283 58.945430 6658.0575 5.4423944e+08 0.075990694 0.030163105 -17.472544 58.839060 6660.0341 5.1897713e+08 0.074738827 0.031657007 -17.618805 58.732689 6662.0107 4.9268974e+08 0.073397093 0.033038265 -17.765065 58.626317 6663.9873 4.6553186e+08 0.072185146 0.032209610 -17.911325 58.519946 6665.9639 4.4594834e+08 0.072318812 0.026967776 -18.057586 58.413575 6667.9405 4.3103631e+08 0.071616980 0.027448909 -18.203731 58.307204 6669.9171 4.1124311e+08 0.071011737 0.027413819 -18.345558 58.200832 6671.8936 3.8790146e+08 0.070820716 0.026878084 -18.487386 58.094460 6673.8702 3.6707257e+08 0.070144152 0.028760719 -18.629214 57.988090 6675.8468 3.4606284e+08 0.068158206 0.031420337 -18.771042 57.881720 6677.8234 3.3871079e+08 0.066955267 0.031187650 -18.910593 57.775349 6679.8000 3.2367623e+08 0.066937550 0.029606686 -19.047988 57.668977 6681.7766 3.1243267e+08 0.067658435 0.030253146 -19.185384 57.562606 6683.7532 3.0832232e+08 0.067927497 0.032292373 -19.322780 57.456234 6685.7298 2.8571214e+08 0.067769402 0.033475652 -19.460162 57.349849 6687.7064 2.7562792e+08 0.065858854 0.033948958 -19.593135 57.239053 6689.6829 2.5999672e+08 0.063975410 0.033401264 -19.726100 57.128249 6691.6595 2.4295525e+08 0.063255856 0.032845656 -19.855761 57.020748 6693.6361 2.3353038e+08 0.062549273 0.031385860 -19.984293 56.914378 6695.6127 2.2555775e+08 0.062402555 0.029746926 -20.114991 56.808007 6697.5893 2.1446097e+08 0.061879961 0.030165842 -20.247955 56.701636 6699.5659 1.9783696e+08 0.060717918 0.031068280 -20.378858 56.594233 6701.5425 1.8802323e+08 0.059157591 0.032205413 -20.502957 56.483430 6703.5191 1.7208657e+08 0.059400430 0.034974100 -20.627056 56.372627 6705.4957 1.6683150e+08 0.059510059 0.037549778 -20.755482 56.266152 6707.4722 1.4915768e+08 0.059381454 0.040119178 -20.884014 56.159782 6709.4488 1.2195902e+08 0.059027735 0.040847065 -21.009356 56.050219 6711.4254 1.0576707e+08 0.057594779 0.041176243 -21.133456 55.939415 6713.4020 91291528. 0.056088666 0.045140600 -21.255501 55.830667 6715.3786 89256006. 0.054418158 0.047765806 -21.375167 55.724295 6717.3552 90645074. 0.052465821 0.049852299 -21.500041 55.613176 6719.3318 92664312. 0.050580278 0.051054630 -21.644800 55.483928 6721.3084 92792918. 0.050958819 0.050396810 -21.781490 55.360932 6723.2850 89993290. 0.049822372 0.049527866 -21.896726 55.254562 6725.2615 90208895. 0.045902186 0.041412649 -22.012037 55.148116 6727.2381 92454921. 0.044645373 0.040643132 -22.131704 55.037313 6729.2147 95571239. 0.044304115 0.040902313 -22.251372 54.926510 6731.1913 93332536. 0.042845292 0.042130757 -22.367668 54.815706 6733.1679 89714837. 0.042020906 0.044835849 -22.482904 54.704902 6735.1445 90206059. 0.042475326 0.049446811 -22.595904 54.596335 6737.1211 89965987. 0.044137949 0.054521239 -22.706707 54.489963 6739.0977 88795317. 0.044886421 0.062946068 -22.817510 54.382491 6741.0742 88181661. 0.043897551 0.065970450 -22.928313 54.271688 6743.0508 86411979. 0.040703883 0.071390382 -23.039116 54.160885 6745.0274 88588929. 0.037752096 0.078578416 -23.149919 54.050082 6747.0040 87031406. 0.033273403 0.067359779 -23.260722 53.939278 6748.9806 82162362. 0.033666962 0.072175881 -23.385116 53.814885 6750.9572 75922683. 0.031061908 0.073638573 -23.514390 53.685611 6752.9338 67924343. 0.028636724 0.073053919 -23.625298 53.574702 6754.9104 65486661. 0.027209807 0.074749485 -23.731669 53.468330 6756.8870 64858312. 0.024783078 0.076449179 -23.838040 53.359540 6758.8635 64588285. 0.025771477 0.075531403 -23.944412 53.248736 6760.8401 64788536. 0.025943937 0.077663367 -24.049501 53.137933 6762.8167 56721234. 0.030426487 0.076733405 -24.151439 53.027130 6764.7933 46594280. 0.033418897 0.079521291 -24.253941 52.915714 6766.7699 39649992. 0.035238265 0.081455274 -24.372873 52.786440