# # 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 = 50.486002 km # Date (UTC) = 2011-12-10T10:09:36.364 # Date (julian) = 2455905.92333754 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6510.3474 9.8987800e+10 0.094701270 0.035403432 -36.891637 47.954963 6512.3421 8.5773258e+10 0.10368311 0.036004946 -36.985565 47.857121 6514.3369 7.5368381e+10 0.11289144 0.036606460 -37.076215 47.762693 6516.3316 6.6861648e+10 0.12230655 0.037207974 -37.159706 47.675724 6518.3264 6.0114250e+10 0.13201755 0.037809488 -37.243197 47.588754 6520.3212 5.4417961e+10 0.14197443 0.038411001 -37.331281 47.497001 6522.3159 4.9132783e+10 0.15119915 0.038999978 -37.425222 47.399144 6524.3107 4.4298293e+10 0.15589062 0.039537329 -37.519163 47.301288 6526.3054 4.0131813e+10 0.15936945 0.039988297 -37.603860 47.213063 6528.3002 3.6729570e+10 0.16327904 0.041680625 -37.687351 47.126094 6530.2949 3.3813364e+10 0.16654070 0.044241618 -37.770796 47.039124 6532.2897 3.1211217e+10 0.16916021 0.046926209 -37.850818 46.952155 6534.2845 2.8983211e+10 0.17006253 0.048024132 -37.930830 46.865186 6536.2792 2.6946103e+10 0.16985823 0.048040326 -38.012196 46.776744 6538.2740 2.4949225e+10 0.17093720 0.049290093 -38.102211 46.678902 6540.2687 2.3006678e+10 0.17126898 0.050981059 -38.192226 46.581060 6542.2635 2.1213499e+10 0.17001280 0.051102274 -38.276435 46.489528 6544.2582 1.9691040e+10 0.16883818 0.051853845 -38.356446 46.402559 6546.2530 1.8401549e+10 0.16735441 0.052672710 -38.436458 46.315590 6548.2478 1.7194236e+10 0.16631556 0.053741637 -38.514021 46.228612 6550.2425 1.6114127e+10 0.16512302 0.055046085 -38.590565 46.141632 6552.2373 1.5110231e+10 0.16363702 0.055527043 -38.667108 46.054651 6554.2320 1.4122841e+10 0.16156523 0.054837249 -38.754854 45.958638 6556.2268 1.3143354e+10 0.15974103 0.053979783 -38.844868 45.860796 6558.2216 1.2205005e+10 0.15823854 0.053050515 -38.930194 45.765960 6560.2163 1.1438483e+10 0.15632465 0.052079279 -39.003248 45.678991 6562.2111 1.0830689e+10 0.15414171 0.050679066 -39.076302 45.592022 6564.2058 1.0289700e+10 0.15171131 0.048678318 -39.154599 45.500683 6566.2006 9.7025653e+09 0.15001097 0.047069416 -39.240700 45.402841 6568.1953 9.0896066e+09 0.14894335 0.045592099 -39.326802 45.304999 6570.1901 8.4900034e+09 0.14799730 0.044838765 -39.404802 45.216363 6572.1849 7.9521484e+09 0.14673090 0.044124295 -39.481335 45.129394 6574.1796 7.5023169e+09 0.14475201 0.042768739 -39.557868 45.042425 6576.1744 7.1106838e+09 0.14291730 0.041170692 -39.631028 44.955445 6578.1691 6.7835782e+09 0.14080566 0.038382545 -39.704092 44.868464 6580.1639 6.4827914e+09 0.13854172 0.036369301 -39.778049 44.780419 6582.1586 6.1609947e+09 0.13634533 0.035250624 -39.860236 44.682577 6584.1534 5.8112188e+09 0.13410232 0.034431949 -39.942423 44.584736 6586.1482 5.4671121e+09 0.13194964 0.033169381 -40.017764 44.492795 6588.1429 5.1764716e+09 0.13009359 0.033332205 -40.087340 44.405826 6590.1377 4.9359930e+09 0.12753443 0.030805979 -40.156916 44.318857 6592.1324 4.7050718e+09 0.12480904 0.027944899 -40.234918 44.224622 6594.1272 4.4458150e+09 0.12249975 0.026102705 -40.317105 44.126780 6596.1219 4.1820223e+09 0.12019061 0.025726719 -40.397866 44.030168 6598.1167 3.9380312e+09 0.11882801 0.025351448 -40.467442 43.943199 6600.1115 3.7331705e+09 0.11845354 0.025219012 -40.537017 43.856229 6602.1062 3.5562895e+09 0.11803181 0.027425993 -40.606595 43.769257 6604.1010 3.3966157e+09 0.11671104 0.026131231 -40.676180 43.682277 6606.0957 3.2523524e+09 0.11638518 0.027331939 -40.745765 43.595296 6608.0905 3.1048117e+09 0.11426206 0.023729979 -40.818515 43.502933 6610.0852 2.9428020e+09 0.11160373 0.024084428 -40.896789 43.401176 6612.0800 2.7669143e+09 0.10958212 0.024260977 -40.975063 43.299419 6614.0748 2.6134254e+09 0.10871767 0.023888986 -41.046297 43.209628 6616.0695 2.4965458e+09 0.10715380 0.023293210 -41.115872 43.122659 6618.0643 2.4016328e+09 0.10638710 0.023819331 -41.185446 43.035690 6620.0590 2.3074397e+09 0.10549052 0.024786221 -41.259494 42.938559 6622.0538 2.1981788e+09 0.10409927 0.024743675 -41.333854 42.840717 6624.0485 2.0904368e+09 0.10207791 0.024888297 -41.405080 42.747001 6626.0433 2.0093582e+09 0.10069648 0.026535730 -41.471176 42.660032 6628.0381 1.9419626e+09 0.098620576 0.025718549 -41.537272 42.573062 6630.0328 1.8736289e+09 0.096852580 0.025928383 -41.607539 42.480604 6632.0276 1.7934004e+09 0.094719904 0.026035652 -41.681898 42.382763 6634.0223 1.6960767e+09 0.092976048 0.026328472 -41.756258 42.284921 6636.0171 1.6114663e+09 0.091352485 0.026543115 -41.822779 42.197394 6638.0118 1.5417250e+09 0.090340534 0.025671126 -41.888885 42.110413 6640.0066 1.4794512e+09 0.090253732 0.025269844 -41.955614 42.022612 6642.0014 1.4176980e+09 0.090446379 0.025151752 -42.029974 41.924770 6643.9961 1.3470438e+09 0.089586317 0.025343021 -42.104334 41.826928 6645.9909 1.2823291e+09 0.088798161 0.025915874 -42.172583 41.734743 6647.9856 1.2265978e+09 0.087961001 0.026956722 -42.235201 41.647774 6649.9804 1.1803109e+09 0.087211688 0.026282263 -42.297819 41.560805 6651.9752 1.1324617e+09 0.086620441 0.027231478 -42.365492 41.466815 6653.9699 1.0792254e+09 0.085990107 0.028020862 -42.435939 41.368973 6655.9647 1.0243439e+09 0.084359862 0.028008818 -42.505675 41.272116 6657.9594 9.7559675e+08 0.083016402 0.030014012 -42.568293 41.185147 6659.9542 9.4214487e+08 0.081526469 0.031635555 -42.630911 41.098178 6661.9489 9.0941339e+08 0.079941108 0.033018264 -42.695222 41.008857 6663.9437 8.7847687e+08 0.078471383 0.032221692 -42.765680 40.911000 6665.9385 8.3933068e+08 0.078446603 0.027009441 -42.836137 40.813143 6667.9332 8.0018631e+08 0.077669454 0.027446242 -42.906587 40.715296 6669.9280 7.6496641e+08 0.076913826 0.027402614 -42.977033 40.617454 6671.9227 7.2768419e+08 0.076551156 0.026878498 -43.046279 40.520397 6673.9175 6.9842574e+08 0.075640722 0.028831381 -43.105417 40.429950 6675.9122 6.7290199e+08 0.073336864 0.031545633 -43.164556 40.339503 6677.9070 6.5506145e+08 0.072055579 0.031068826 -43.226312 40.247343 6679.9018 6.3463362e+08 0.071973689 0.029522601 -43.296759 40.149501 6681.8965 6.1121983e+08 0.072641845 0.030345149 -43.367205 40.051659 6683.8913 5.8526881e+08 0.072967889 0.032494747 -43.435005 39.953817 6685.8860 5.5961184e+08 0.072664300 0.033640701 -43.501538 39.855975 6687.8808 5.3691230e+08 0.070602195 0.033851678 -43.567175 39.759451 6689.8755 5.1402351e+08 0.068794754 0.033227895 -43.626313 39.672482 6691.8703 4.9358560e+08 0.067925199 0.032795929 -43.685451 39.585513 6693.8651 4.7385877e+08 0.067151895 0.031307320 -43.746417 39.495858 6695.8598 4.5677660e+08 0.067120229 0.029701536 -43.812960 39.398002 6697.8546 4.4080723e+08 0.066493437 0.030199413 -43.879503 39.300145 6699.8493 4.2624317e+08 0.065127909 0.030806744 -43.943331 39.202299 6701.8441 4.0858752e+08 0.063587298 0.032647962 -44.005949 39.104457 6703.8388 3.9237222e+08 0.063939609 0.035774292 -44.069103 39.006615 6705.8336 3.7469252e+08 0.064102799 0.038150582 -44.135635 38.908773 6707.8284 3.5824988e+08 0.063907358 0.040068165 -44.202167 38.810931 6709.8231 3.4366328e+08 0.063026560 0.040609001 -44.262375 38.719414 6711.8179 3.3218257e+08 0.061156079 0.041622750 -44.318036 38.632444 6713.8126 3.2366819e+08 0.059218139 0.046625739 -44.373696 38.545474 6715.8074 3.1320618e+08 0.057674358 0.048204363 -44.434277 38.450817 6717.8021 3.0098273e+08 0.055833496 0.049824652 -44.496895 38.352975 6719.7969 2.8770997e+08 0.054601271 0.050612722 -44.559514 38.255134 6721.7917 2.7768083e+08 0.054816178 0.050542431 -44.622133 38.157292 6723.7864 2.6795659e+08 0.053169218 0.049807543 -44.684751 38.059450 6725.7812 2.5941190e+08 0.049448439 0.041088056 -44.747370 37.961608 6727.7759 2.4934332e+08 0.048751750 0.039926620 -44.809989 37.863766 6729.7707 2.3702191e+08 0.047947663 0.040531742 -44.872608 37.765924 6731.7654 2.2604924e+08 0.046514991 0.043273409 -44.935227 37.668082 6733.7602 2.1535733e+08 0.045678140 0.048051689 -44.997846 37.570240 6735.7550 2.0683589e+08 0.047029283 0.050094882 -45.058565 37.472390 6737.7497 2.0178489e+08 0.048300917 0.056523821 -45.117280 37.374534 6739.7445 1.9247214e+08 0.048386143 0.063737652 -45.175994 37.276677 6741.7392 1.8465156e+08 0.046580031 0.067867036 -45.238346 37.178835 6743.7340 1.7558754e+08 0.042332597 0.075998940 -45.300965 37.080993 6745.7288 1.6794668e+08 0.040728110 0.078873247 -45.362110 36.983151 6747.7235 1.6258806e+08 0.036323827 0.067112085 -45.420816 36.885309 6749.7183 1.5566111e+08 0.034293975 0.072081271 -45.479521 36.787467 6751.7130 1.5071686e+08 0.031305076 0.074013141 -45.538226 36.689625 6753.7078 1.4466848e+08 0.029553489 0.075267797 -45.596930 36.591784 6755.7025 1.3899263e+08 0.027095547 0.074297327 -45.655635 36.494984 6757.6973 1.3377574e+08 0.025519125 0.074623950 -45.714341 36.401054 6759.6921 1.2697611e+08 0.025827657 0.075986958 -45.773047 36.307125 6761.6868 1.2299905e+08 0.027912415 0.078024969 -45.831752 36.210413 6763.6816 1.1869071e+08 0.031001808 0.078513494 -45.890456 36.112571 6765.6763 1.1401711e+08 0.032289004 0.079654659 -45.949160 36.014729 6767.6711 1.1073783e+08 0.029834623 0.081224327 -46.007866 35.916888 6769.6658 1.0644694e+08 0.024860111 0.086069216 -46.066572 35.819046 6771.6606 1.0514869e+08 0.020763563 0.090907380 -46.127629 35.712803 6773.6554 1.0017950e+08 0.016519071 0.095745544 -46.190249 35.600982 6775.6501 96059826. 0.012270017 0.10058371 -46.251440 35.494265 6777.6449 91399829. 0.0079426002 0.10542187 -46.310146 35.396423 6779.6396 89528078. 0.0037788650 0.11026004 -46.368852 35.298581 6781.6344 88679951. -0.00029933024 0.11509820 -46.424387 35.200739 6783.6291 86098255. -0.0045444027 0.11993636 -46.479178 35.102897 6785.6239 83290811. -0.0088593546 0.12477453 -46.535965 35.001491 6787.6187 80782828. -0.013216291 0.12961269 -46.598585 34.889669 6789.6134 80020279. -0.017437774 0.13445085 -46.661129 34.778117 6791.6082 76902148. -0.022147072 0.13928902 -46.719844 34.680260 6793.6029 70927485. -0.027728347 0.14412718 -46.778558 34.582403 6795.5977 64865612. -0.034160151 0.14896535 -46.835450 34.486372 6797.5924 62566418. -0.040803466 0.15380351 -46.890242 34.392445 6799.5872 63788521. -0.048114745 0.15864167 -46.945033 34.298517 6801.5820 63531876. -0.060887874 0.16347984 -47.002876 34.188318 6803.5767 62781064. -0.12102393 0.16831800 -47.061024 34.076497 6805.5715 58414627. -0.078685834 0.17315616 -47.116911 33.974092 6807.5662 53477039. 0.031782691 0.17799433 -47.171702 33.876249