# # 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 = 55.557920 km # Date (UTC) = 2013-11-26T10:50:08.558 # Date (julian) = 2456622.95148794 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6499.1487 6.1582706e+10 0.040849395 0.032026514 92.324843 29.634954 6501.4806 5.6492190e+10 0.049250757 0.032729686 92.384318 29.506852 6503.8125 5.1344117e+10 0.057824590 0.033432858 92.443794 29.378749 6506.1444 4.6902248e+10 0.066758282 0.034136029 92.503273 29.250645 6508.4763 4.3061982e+10 0.076158437 0.034839201 92.561770 29.121562 6510.8081 3.9574689e+10 0.086052993 0.035542373 92.616669 28.988884 6513.1400 3.6510284e+10 0.096549811 0.036245545 92.671699 28.856338 6515.4719 3.3696211e+10 0.10762818 0.036948716 92.731178 28.728234 6517.8038 3.1129495e+10 0.11930151 0.037651888 92.790656 28.600131 6520.1356 2.8746334e+10 0.13156284 0.038355060 92.846275 28.472028 6522.4675 2.6472658e+10 0.14307007 0.039039677 92.901174 28.343925 6524.7994 2.4426520e+10 0.15044056 0.039710951 92.956075 28.212816 6527.1313 2.2448896e+10 0.15638951 0.040811780 93.010978 28.080138 6529.4632 2.0644805e+10 0.16124791 0.042973554 93.065880 27.949616 6531.7950 1.8990319e+10 0.16619174 0.046385864 93.120783 27.821513 6534.1269 1.7511108e+10 0.16930736 0.047980060 93.175686 27.693405 6536.4588 1.6203047e+10 0.17107826 0.048200995 93.230594 27.565284 6538.7907 1.4970779e+10 0.17283292 0.049541696 93.285500 27.437164 6541.1225 1.3830740e+10 0.17281127 0.051286787 93.340403 27.309061 6543.4544 1.2789025e+10 0.17156511 0.051501160 93.395305 27.180957 6545.7863 1.1853854e+10 0.16939870 0.052462612 93.450205 27.052854 6548.1182 1.1009699e+10 0.16769291 0.053702940 93.505104 26.924751 6550.4501 1.0228867e+10 0.16583643 0.055098051 93.556671 26.796649 6552.7819 9.5049859e+09 0.16407421 0.055389953 93.606997 26.668546 6555.1138 8.8329974e+09 0.16212223 0.054757729 93.659808 26.540443 6557.4457 8.2127833e+09 0.15986841 0.053586743 93.714711 26.412340 6559.7776 7.6580476e+09 0.15744077 0.052299415 93.769613 26.284237 6562.1095 7.1595005e+09 0.15479439 0.050775754 93.824516 26.156134 6564.4413 6.7102754e+09 0.15214176 0.048571586 93.878633 26.028030 6566.7732 6.2771504e+09 0.15025908 0.046745482 93.928960 25.899928 6569.1051 5.8738330e+09 0.14842039 0.044859264 93.979286 25.771826 6571.4370 5.4987553e+09 0.14715558 0.044383931 94.029609 25.643723 6573.7688 5.1607958e+09 0.14507084 0.043040502 94.079932 25.515620 6576.1007 4.8561721e+09 0.14288392 0.041255459 94.133925 25.387501 6578.4326 4.5732160e+09 0.14035733 0.037966486 94.188836 25.259379 6580.7645 4.3065258e+09 0.13767718 0.035814263 94.240929 25.131269 6583.0964 4.0532457e+09 0.13551001 0.034972894 94.291256 25.003167 6585.4282 3.8148457e+09 0.13301491 0.033628408 94.341582 24.875064 6587.7601 3.5741679e+09 0.13081716 0.033326782 94.391908 24.746960 6590.0920 3.3630271e+09 0.12803101 0.030890946 94.440875 24.622318 6592.4239 3.1878548e+09 0.12472790 0.027661818 94.485609 24.508451 6594.7557 3.0450190e+09 0.12168429 0.025757653 94.530343 24.394585 6597.0876 2.9224895e+09 0.11874946 0.025695075 94.579462 24.269555 6599.4195 2.7806298e+09 0.11735299 0.024954961 94.629788 24.141451 6601.7514 2.6301892e+09 0.11746264 0.027399549 94.680115 24.013348 6604.0833 2.4920622e+09 0.11626932 0.026120715 94.730441 23.885245 6606.4151 2.3641261e+09 0.11598742 0.026757968 94.780768 23.759030 6608.7470 2.2448242e+09 0.11331795 0.023712620 94.831094 23.635503 6611.0789 2.1262612e+09 0.11036183 0.024908142 94.880382 23.510937 6613.4108 2.0075341e+09 0.10953736 0.023724305 94.926133 23.382834 6615.7427 1.9004931e+09 0.10815138 0.023274381 94.972071 23.254731 6618.0745 1.8046715e+09 0.10747965 0.023827077 95.022405 23.126608 6620.4064 1.7120496e+09 0.10674357 0.024898163 95.072739 22.998486 6622.7383 1.6248655e+09 0.10529255 0.024561485 95.123067 22.870381 6625.0702 1.5449882e+09 0.10371617 0.025481335 95.173393 22.742278 6627.4020 1.4670468e+09 0.10157020 0.025472114 95.220654 22.617241 6629.7339 1.3992334e+09 0.10014986 0.025976409 95.266404 22.493713 6632.0658 1.3325109e+09 0.098118117 0.026040236 95.314370 22.367969 6634.3977 1.2697846e+09 0.096342376 0.026355851 95.364697 22.239866 6636.7296 1.2093840e+09 0.094495068 0.026266435 95.413657 22.113129 6639.0614 1.1494742e+09 0.093060031 0.025606116 95.459408 21.989600 6641.3933 1.0942359e+09 0.093310981 0.025149636 95.505158 21.865556 6643.7252 1.0432308e+09 0.092116168 0.025302114 95.550909 21.737454 6646.0571 9.9510128e+08 0.090814582 0.025949689 95.596659 21.609352 6648.3890 9.5388001e+08 0.089637292 0.027224649 95.646651 21.485490 6650.7208 9.1081600e+08 0.089142706 0.026420255 95.696977 21.361962 6653.0527 8.6847398e+08 0.088895842 0.027552572 95.743912 21.235043 6655.3846 8.2936142e+08 0.087537574 0.027769128 95.789662 21.106940 6657.7165 7.8798203e+08 0.085908631 0.029732186 95.835414 20.981379 6660.0483 7.5178051e+08 0.084508190 0.031669937 95.881168 20.857852 6662.3802 7.1597195e+08 0.083052985 0.032830946 95.926923 20.732625 6664.7121 6.8618462e+08 0.082140614 0.029600551 95.972681 20.604502 6667.0440 6.5747480e+08 0.081813441 0.027119611 96.018437 20.477227 6669.3759 6.2959965e+08 0.080697747 0.027969674 96.064187 20.353699 6671.7077 6.0095157e+08 0.080626352 0.026875434 96.109937 20.230171 6674.0396 5.7217642e+08 0.079768174 0.028988206 96.155687 20.106643 6676.3715 5.4896056e+08 0.077271424 0.031953147 96.201438 19.983115 6678.7034 5.2741700e+08 0.076183480 0.030466172 96.247188 19.855869 6681.0352 5.0845510e+08 0.076912197 0.029684399 96.292938 19.727767 6683.3671 4.8630405e+08 0.077314152 0.031726606 96.338691 19.602533 6685.6990 4.6469279e+08 0.076748378 0.033443157 96.384444 19.479006 6688.0309 4.4394134e+08 0.074147207 0.033792319 96.428177 19.355477 6690.3628 4.2609467e+08 0.071975456 0.033074291 96.469351 19.231949 6692.6946 4.0591409e+08 0.070825400 0.031958688 96.511696 19.108421 6695.0265 3.8555793e+08 0.070057340 0.029854603 96.557446 18.984894 6697.3584 3.6749887e+08 0.069325186 0.030136621 96.603196 18.861047 6699.6903 3.5325478e+08 0.067770220 0.030953508 96.648947 18.732944 6702.0222 3.3906034e+08 0.065996026 0.032894417 96.694697 18.604841 6704.3540 3.2363867e+08 0.066516894 0.036351400 96.736404 18.480783 6706.6859 3.1011676e+08 0.066412625 0.039640172 96.777582 18.357255 6709.0178 2.9867604e+08 0.065849638 0.041121231 96.821958 18.233714 6711.3497 2.8844585e+08 0.063954710 0.041090054 96.867715 18.110167 6713.6815 2.7610572e+08 0.061726645 0.046151614 96.911124 17.986630 6716.0134 2.6418091e+08 0.059843954 0.048421126 96.952301 17.863103 6718.3453 2.5485642e+08 0.057483951 0.050350190 96.994975 17.739576 6720.6772 2.4758729e+08 0.057005011 0.050341304 97.040726 17.616048 6723.0091 2.3542270e+08 0.056184346 0.049373994 97.086661 17.490023 6725.3409 2.2361078e+08 0.051853446 0.041363055 97.133718 17.348845 6727.6728 2.1369022e+08 0.050630773 0.040064008 97.179429 17.211709 6730.0047 2.0267264e+08 0.049438944 0.040385332 97.220606 17.088182 6732.3366 1.9753926e+08 0.047696059 0.043802170 97.261982 16.964654 6734.6684 1.8930163e+08 0.047297001 0.049313381 97.307733 16.841126 6737.0003 1.7876599e+08 0.049122527 0.054136599 97.353483 16.717598 6739.3322 1.7470450e+08 0.049583818 0.063233105 97.395309 16.594070 6741.6641 1.6632006e+08 0.047715934 0.067652690 97.436483 16.470543 6743.9960 1.6058017e+08 0.042649412 0.077766155 97.481612 16.335158 6746.3278 1.5297720e+08 0.040240083 0.075175798 97.528674 16.193980 6748.6597 1.4687326e+08 0.037485078 0.070487688 97.571265 16.069678 6750.9916 1.4100254e+08 0.034616249 0.073697318 97.612439 15.950725 6753.3235 1.3447759e+08 0.031718498 0.074024106 97.653615 15.829148 6755.6554 1.2993723e+08 0.029411500 0.074318016 97.694793 15.705620 6757.9872 1.2512644e+08 0.028361673 0.073744079 97.740280 15.575247 6760.3191 1.2295939e+08 0.028960591 0.076669794 97.792567 15.434069 6762.6510 1.2067001e+08 0.033556417 0.077000752 97.839573 15.301282 6764.9829 1.1616702e+08 0.036364194 0.079530372 97.880751 15.177754 6767.3147 1.1078928e+08 0.035626264 0.081623336 97.920604 15.054221 6769.6466 1.0743520e+08 0.030500751 0.086022600 97.957208 14.930675 6771.9785 1.0293530e+08 0.026239103 0.091678430 97.994901 14.805837 6774.3104 1.0107052e+08 0.021960254 0.097334260 98.041962 14.669888 6776.6423 97207139. 0.017694738 0.10299009 98.087895 14.536321 6778.9741 90139192. 0.013439272 0.10864592 98.129069 14.412793 6781.3060 85460248. 0.0091716459 0.11430175 98.170286 14.289174 6783.6379 81225888. 0.0049001679 0.11995758 98.217340 14.153242 6785.9698 80631925. 0.00063212730 0.12561341 98.263851 14.018453 6788.3016 77209143. -0.0036422999 0.13126924 98.305025 13.894926 6790.6335 72189765. -0.0079407096 0.13692507 98.346199 13.771398 6792.9654 69944879. -0.012235276 0.14258090 98.392717 13.631849 6795.2973 67791409. -0.016550630 0.14823673 98.439765 13.490685 6797.6292 67870967. -0.020856463 0.15389256 98.481631 13.354698 6799.9610 63488393. -0.025293029 0.15954839 98.523404 13.219777 6802.2929 59973808. -0.029821345 0.16520422 98.564582 13.096249 6804.6248 59879445. -0.034410697 0.17086005 98.605760 12.972721 6806.9567 57966297. -0.039390913 0.17651588 98.652212 12.838051 6809.2886 56726368. -0.045766730 0.18217171 98.699269 12.702102 6811.6204 51490272. -0.063976779 0.18782754 98.741181 12.561006 6813.9523 47146465. -0.057835603 0.19348337 98.782966 12.421430 6816.2842 46241972. -0.035326146 0.19913920 98.824143 12.302477