# # 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 = 55.703564 km # Date (UTC) = 2015-01-05T09:26:11.104 # Date (julian) = 2457027.89318408 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6505.8233 5.0966079e+10 0.069657794 0.034039213 -21.840166 49.325611 6507.8376 4.7370568e+10 0.078893504 0.034646626 -21.942920 49.226810 6509.8520 4.3014994e+10 0.088025786 0.035254039 -22.031771 49.138231 6511.8663 3.9604867e+10 0.097529955 0.035861452 -22.119593 49.050409 6513.8806 3.7353041e+10 0.10762170 0.036468864 -22.208342 48.961660 6515.8949 3.5044970e+10 0.11787891 0.037076277 -22.307143 48.862859 6517.9092 3.2686499e+10 0.12828614 0.037683690 -22.405945 48.764057 6519.9235 3.0554649e+10 0.13895461 0.038291103 -22.498669 48.671333 6521.9379 2.8683910e+10 0.14992486 0.038898515 -22.586503 48.583499 6523.9522 2.7056653e+10 0.15547504 0.039415110 -22.674336 48.495666 6525.9665 2.5304195e+10 0.15985255 0.039671909 -22.769933 48.400069 6527.9808 2.3516431e+10 0.16514635 0.041428564 -22.868734 48.301267 6529.9951 2.1678261e+10 0.16925205 0.043820966 -22.966834 48.202466 6532.0095 1.9881819e+10 0.17195618 0.046692099 -23.061684 48.103664 6534.0238 1.8153611e+10 0.17289083 0.047951211 -23.156533 48.004863 6536.0381 1.6648557e+10 0.17269227 0.047824596 -23.244562 47.913167 6538.0524 1.5463426e+10 0.17431182 0.049182209 -23.328871 47.825345 6540.0667 1.4555477e+10 0.17479210 0.050885634 -23.413180 47.737523 6542.0811 1.3675773e+10 0.17300249 0.051033015 -23.502762 47.640912 6544.0954 1.2716487e+10 0.17113619 0.051721725 -23.593660 47.542110 6546.1097 1.1794270e+10 0.16911717 0.052554795 -23.682777 47.446275 6548.1240 1.1007117e+10 0.16790809 0.053704684 -23.767086 47.358453 6550.1383 1.0369707e+10 0.16661956 0.055019999 -23.851395 47.270631 6552.1527 9.7878282e+09 0.16500731 0.055548341 -23.938500 47.178153 6554.1670 9.1431679e+09 0.16286611 0.054835884 -24.029411 47.079336 6556.1813 8.5038858e+09 0.16100196 0.053986471 -24.120322 46.980520 6558.1956 7.9151094e+09 0.15945833 0.053072611 -24.202195 46.891528 6560.2099 7.4474442e+09 0.15741626 0.052085020 -24.282992 46.803706 6562.2243 7.0558565e+09 0.15506301 0.050666510 -24.364077 46.715369 6564.2386 6.6708160e+09 0.15253579 0.048663472 -24.451022 46.616567 6566.2529 6.2764354e+09 0.15069230 0.047039819 -24.537967 46.517766 6568.2672 5.8720499e+09 0.14941809 0.045526023 -24.619921 46.424636 6570.2815 5.5367365e+09 0.14819490 0.044800886 -24.697204 46.336814 6572.2959 5.2426638e+09 0.14660129 0.044060725 -24.774488 46.248992 6574.3102 4.9738088e+09 0.14436358 0.042706027 -24.858244 46.153815 6576.3245 4.6925642e+09 0.14227162 0.040997889 -24.945190 46.055013 6578.3388 4.4118918e+09 0.13992020 0.038114581 -25.030787 45.957744 6580.3531 4.1700704e+09 0.13752195 0.036194403 -25.108070 45.869922 6582.3675 3.9756008e+09 0.13513576 0.035193799 -25.185353 45.782100 6584.3818 3.8182486e+09 0.13245367 0.034307543 -25.265470 45.691058 6586.3961 3.6337823e+09 0.12998796 0.033166176 -25.352428 45.592241 6588.4104 3.4467392e+09 0.12809903 0.033242871 -25.439386 45.493425 6590.4247 3.2697664e+09 0.12596378 0.030271991 -25.516283 45.402997 6592.4391 3.1282072e+09 0.12390714 0.027647069 -25.590054 45.315175 6594.4534 3.0145529e+09 0.12176113 0.025923642 -25.663825 45.227353 6596.4677 2.8907545e+09 0.11933519 0.025725147 -25.746046 45.129470 6598.4820 2.7452236e+09 0.11775387 0.025177034 -25.829039 45.030669 6600.4963 2.6019865e+09 0.11758981 0.026010247 -25.908472 44.936105 6602.5107 2.4779858e+09 0.11692618 0.027080862 -25.982243 44.848283 6604.5250 2.3739284e+09 0.11581261 0.026382988 -26.056014 44.760461 6606.5393 2.2832801e+09 0.11495098 0.026534870 -26.132627 44.666718 6608.5536 2.1848293e+09 0.11232934 0.023717734 -26.211669 44.567916 6610.5679 2.0845071e+09 0.10946870 0.024545626 -26.290746 44.469114 6612.5823 1.9837199e+09 0.10787486 0.023885715 -26.373739 44.370313 6614.5966 1.8813820e+09 0.10674985 0.023529478 -26.456731 44.271512 6616.6109 1.7818435e+09 0.10525875 0.023378178 -26.533633 44.177960 6618.6252 1.6985283e+09 0.10442671 0.024242905 -26.603900 44.090126 6620.6395 1.6301583e+09 0.10340935 0.024973286 -26.674168 44.002293 6622.6539 1.5633471e+09 0.10176564 0.024583959 -26.749983 43.905024 6624.6682 1.4969436e+09 0.099905680 0.025219978 -26.829024 43.802269 6626.6825 1.4206550e+09 0.097913946 0.025721348 -26.906810 43.701038 6628.6968 1.3563804e+09 0.096290587 0.025986007 -26.973555 43.613216 6630.7111 1.3067049e+09 0.094354918 0.025930054 -27.040300 43.525394 6632.7254 1.2614560e+09 0.092767363 0.026119332 -27.110185 43.434769 6634.7398 1.2163605e+09 0.091355187 0.026380805 -27.189226 43.335967 6636.7541 1.1606058e+09 0.090122740 0.026256909 -27.268267 43.237166 6638.7684 1.1064475e+09 0.089314546 0.025638165 -27.344443 43.138364 6640.7827 1.0471916e+09 0.090052819 0.025174884 -27.419532 43.039562 6642.7970 9.9570020e+08 0.089948495 0.025184313 -27.492998 42.942896 6644.8114 9.5062582e+08 0.089113235 0.025431297 -27.559752 42.855062 6646.8257 9.0759441e+08 0.088095998 0.026347549 -27.626505 42.767229 6648.8400 8.7851905e+08 0.086922576 0.027526587 -27.696164 42.675574 6650.8543 8.3968037e+08 0.086587924 0.026450816 -27.771253 42.576772 6652.8686 8.0619675e+08 0.086201448 0.027489521 -27.846342 42.477971 6654.8830 7.7252192e+08 0.085082299 0.027660074 -27.911731 42.388152 6656.8973 7.4155288e+08 0.083183055 0.028810959 -27.974963 42.300330 6658.9116 7.1303758e+08 0.081617988 0.031677827 -28.038195 42.212508 6660.9259 6.7918611e+08 0.080347845 0.032467618 -28.112945 42.114020 6662.9402 6.5237203e+08 0.079118413 0.032516740 -28.188034 42.015218 6664.9546 6.2675157e+08 0.078326308 0.028713382 -28.261379 41.916416 6666.9689 6.0583658e+08 0.077739354 0.027097394 -28.332517 41.817615 6668.9832 5.8182972e+08 0.076336184 0.028340838 -28.403654 41.718813 6670.9975 5.5370486e+08 0.076331701 0.026866496 -28.474791 41.616413 6673.0118 5.2285649e+08 0.075868596 0.027476927 -28.545928 41.513660 6675.0262 4.9668182e+08 0.074260499 0.029848466 -28.614060 41.416584 6677.0405 4.7290780e+08 0.072116106 0.032300670 -28.677301 41.328750 6679.0548 4.5902678e+08 0.071467169 0.030222487 -28.740541 41.240916 6681.0691 4.4661117e+08 0.072483453 0.029710386 -28.808000 41.147224 6683.0834 4.2952110e+08 0.073119947 0.031310863 -28.879137 41.048423 6685.0978 4.1355679e+08 0.072989333 0.032808096 -28.950258 40.949621 6687.1121 3.9558933e+08 0.071389982 0.034280392 -29.017444 40.850820 6689.1264 3.8048822e+08 0.068843606 0.033902245 -29.084629 40.752018 6691.1407 3.6404194e+08 0.068072763 0.032968062 -29.151815 40.653216 6693.1550 3.4616067e+08 0.067380171 0.031550901 -29.218999 40.554415 6695.1694 3.2831424e+08 0.066985934 0.029828365 -29.286184 40.455613 6697.1837 3.1349306e+08 0.066482837 0.030114510 -29.349640 40.367168 6699.1980 3.0452850e+08 0.065184683 0.031407737 -29.412872 40.279346 6701.2123 2.9217164e+08 0.063513123 0.031720975 -29.476484 40.190464 6703.2266 2.8034345e+08 0.063411340 0.034242351 -29.543669 40.091663 6705.2410 2.6976504e+08 0.063524684 0.037096977 -29.610854 39.992861 6707.2553 2.5784976e+08 0.063190195 0.040150258 -29.675802 39.894060 6709.2696 2.5207106e+08 0.062444319 0.040961067 -29.739035 39.795258 6711.2839 2.4439648e+08 0.060700155 0.041015250 -29.802410 39.696456 6713.2982 2.3264131e+08 0.058843128 0.044765275 -29.869595 39.597654 6715.3126 2.2468427e+08 0.057050676 0.047698260 -29.936780 39.498853 6717.3269 2.1635794e+08 0.055109951 0.049854050 -30.001972 39.400044 6719.3412 2.0816356e+08 0.053275562 0.051045680 -30.065214 39.301228 6721.3555 2.0458455e+08 0.053640668 0.050411017 -30.128456 39.202412 6723.3698 1.9835401e+08 0.052432091 0.049575206 -30.195545 39.103610 6725.3842 1.9144096e+08 0.048619215 0.041336058 -30.262730 39.004809 6727.3985 1.8692980e+08 0.047551103 0.040429507 -30.328155 38.906008 6729.4128 1.7842530e+08 0.047113913 0.040770291 -30.391388 38.807206 6731.4271 1.7304530e+08 0.045609872 0.042600055 -30.454620 38.708405 6733.4414 1.6695943e+08 0.044739501 0.046320965 -30.517854 38.609603 6735.4558 1.5866311e+08 0.045723485 0.049777245 -30.581088 38.510801 6737.4701 1.5566972e+08 0.047242072 0.055632986 -30.644322 38.411999 6739.4844 1.5272655e+08 0.047620198 0.063419353 -30.707555 38.313198 6741.4987 1.5149461e+08 0.046125160 0.067181040 -30.770787 38.214397 6743.5130 1.4945586e+08 0.042224420 0.074508321 -30.834020 38.115595 6745.5273 1.4511280e+08 0.040311656 0.078788580 -30.897253 38.016794 6747.5417 1.3996959e+08 0.036082634 0.067174685 -30.959205 37.917993 6749.5560 1.3057783e+08 0.034891139 0.072125703 -31.018486 37.819191 6751.5703 1.2412417e+08 0.032219448 0.073952800 -31.077767 37.720390 6753.5846 1.2371595e+08 0.030491459 0.074869251 -31.140184 37.621588 6755.5989 1.2241903e+08 0.028433151 0.074342745 -31.203417 37.522786 6757.6133 1.2174204e+08 0.027035050 0.074878955 -31.265610 37.423984 6759.6276 1.1772431e+08 0.027843334 0.075971401 -31.324890 37.325183 6761.6419 1.1131040e+08 0.030320966 0.078021259 -31.384171 37.226382 6763.6562 1.0808316e+08 0.034055775 0.078436314 -31.443458 37.127569 6765.6705 1.0306934e+08 0.035964199 0.079653604 -31.502748 37.028753 6767.6849 96837197. 0.034103708 0.081208895 -31.562036 36.929940 6769.6992 95292904. 0.029688730 0.086150091 -31.621317 36.831139 6771.7135 94634663. 0.026040803 0.091035702 -31.680599 36.732338 6773.7278 89448678. 0.022448179 0.095921312 -31.745577 36.624040 6775.7421 85721752. 0.018828645 0.10080692 -31.813328 36.511121 6777.7565 81709641. 0.015202289 0.10569253 -31.877194 36.404679 6779.7708 82214239. 0.011525009 0.11057814 -31.936475 36.305877 6781.7851 85211049. 0.0078390008 0.11546376 -31.995756 36.207075 6783.7994 80714521. 0.0042012317 0.12034937 -32.051367 36.108273 6785.8137 75812178. 0.00055564037 0.12523498 -32.106696 36.009472 6787.8281 69236590. -0.0030972767 0.13012059 -32.163598 35.910671 6789.8424 63563658. -0.0067649177 0.13500620 -32.222879 35.811869 6791.8567 64937943. -0.010422025 0.13989181 -32.282161 35.713068 6793.8710 61736490. -0.014096012 0.14477742 -32.344872 35.602017 6795.8853 63907007. -0.017729272 0.14966303 -32.408106 35.489098 6797.8997 63482654. -0.021383690 0.15454864 -32.466171 35.385409 6799.9140 59865025. -0.025099084 0.15943425 -32.521500 35.286608 6801.9283 60231835. -0.028776109 0.16431986 -32.577804 35.186064 6803.9426 56201996. -0.032605806 0.16920547 -32.641039 35.073145 6805.9569 53620271. -0.036528140 0.17409108 -32.704273 34.960226 6807.9713 52278959. -0.040640774 0.17897670 -32.760317 34.863740 6809.9856 52333947. -0.045525705 0.18386231 -32.815646 34.768890 6811.9999 50736455. -0.057385220 0.18874792 -32.873972 34.667190 6814.0142 48570241. -0.053914217 0.19363353 -32.937208 34.554272 6816.0285 43234676. -0.041086223 0.19851914 -32.999138 34.443685