# # 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 = 43.625281 km # Date (UTC) = 2012-01-05T09:35:02.180 # Date (julian) = 2455931.89933079 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6503.1090 1.5446745e+11 0.060923229 0.033220733 -28.331963 45.003285 6505.1768 1.3202341e+11 0.069546390 0.033844256 -28.417157 44.897805 6507.2445 1.1134310e+11 0.078179442 0.034467780 -28.503416 44.792326 6509.3123 9.4623308e+10 0.086975036 0.035091303 -28.592668 44.686848 6511.3800 8.1550627e+10 0.096052914 0.035714827 -28.681920 44.581369 6513.4478 7.1220087e+10 0.10548203 0.036338350 -28.767936 44.475890 6515.5155 6.2647003e+10 0.11523911 0.036961874 -28.853130 44.370411 6517.5833 5.5438646e+10 0.12533421 0.037585397 -28.938324 44.264931 6519.6510 4.9130129e+10 0.13570215 0.038208920 -29.023519 44.159453 6521.7188 4.3789206e+10 0.14642172 0.038832444 -29.108714 44.053974 6523.7865 3.9365799e+10 0.15235814 0.039374046 -29.182567 43.958664 6525.8543 3.5824580e+10 0.15704705 0.039684721 -29.254688 43.864906 6527.9220 3.2951637e+10 0.16256407 0.041385854 -29.328043 43.770041 6529.9897 3.0254866e+10 0.16712625 0.043812362 -29.413238 43.664563 6532.0575 2.7729742e+10 0.17034768 0.046732219 -29.498433 43.559084 6534.1252 2.5372096e+10 0.17186619 0.047979591 -29.581073 43.453605 6536.1930 2.3239317e+10 0.17222478 0.047963170 -29.662210 43.348125 6538.2607 2.1265698e+10 0.17378002 0.049283643 -29.743350 43.242643 6540.3285 1.9415538e+10 0.17402175 0.051009283 -29.824500 43.137149 6542.3962 1.7745343e+10 0.17237879 0.051152667 -29.905650 43.031655 6544.4640 1.6309390e+10 0.17069893 0.052020729 -29.980480 42.936900 6546.5317 1.5159978e+10 0.16866740 0.052902043 -30.052601 42.846748 6548.5995 1.4179255e+10 0.16685779 0.053846666 -30.124721 42.756597 6550.6672 1.3256009e+10 0.16535999 0.055152423 -30.201440 42.652240 6552.7350 1.2344165e+10 0.16406653 0.055401779 -30.278521 42.546762 6554.8027 1.1438194e+10 0.16234369 0.054849225 -30.357475 42.441283 6556.8704 1.0631500e+10 0.16036917 0.053885153 -30.438613 42.335803 6558.9382 9.8904213e+09 0.15793084 0.052439847 -30.519742 42.230324 6561.0059 9.1997836e+09 0.15547714 0.051369753 -30.596844 42.124845 6563.0737 8.5490261e+09 0.15356943 0.049843127 -30.673924 42.019367 6565.1414 7.9660488e+09 0.15158274 0.048157796 -30.746448 41.920123 6567.2092 7.4936650e+09 0.14965408 0.046440320 -30.814963 41.826365 6569.2769 7.0971533e+09 0.14769196 0.044870448 -30.883478 41.732607 6571.3447 6.7171485e+09 0.14605715 0.044409138 -30.958503 41.629943 6573.4124 6.3302817e+09 0.14392388 0.043326524 -31.035595 41.524449 6575.4802 5.9408627e+09 0.14161007 0.041892950 -31.111490 41.418960 6577.5479 5.5736227e+09 0.13899752 0.039359734 -31.184514 41.313480 6579.6157 5.2263179e+09 0.13601625 0.036732042 -31.257538 41.208000 6581.6834 4.8863854e+09 0.13321488 0.035389664 -31.333926 41.102521 6583.7512 4.5655392e+09 0.13038115 0.034641467 -31.411006 40.997043 6585.8189 4.2815163e+09 0.12767343 0.033316083 -31.483651 40.895836 6587.8866 4.0483023e+09 0.12569755 0.033354816 -31.548561 40.802077 6589.9544 3.8506481e+09 0.12353318 0.031152552 -31.613470 40.708319 6592.0221 3.6564969e+09 0.12121159 0.028052024 -31.683177 40.607631 6594.0899 3.4581277e+09 0.11904371 0.026123182 -31.756201 40.502153 6596.1576 3.2521423e+09 0.11658023 0.025726557 -31.828712 40.396675 6598.2254 3.0578982e+09 0.11493022 0.025299562 -31.897680 40.291196 6600.2931 2.8837022e+09 0.11445449 0.025592482 -31.966647 40.185718 6602.3609 2.7129496e+09 0.11382234 0.027208682 -32.038296 40.080239 6604.4286 2.5456301e+09 0.11268678 0.026325774 -32.111320 39.974759 6606.4964 2.3902445e+09 0.11202596 0.026612016 -32.182042 39.872288 6608.5641 2.2588776e+09 0.10936623 0.023717456 -32.243354 39.782125 6610.6319 2.1558801e+09 0.10629293 0.024606702 -32.304666 39.691961 6612.6996 2.0556626e+09 0.10463507 0.023798036 -32.370940 39.595309 6614.7673 1.9545467e+09 0.10327898 0.023411820 -32.443964 39.489831 6616.8351 1.8465714e+09 0.10166269 0.023413367 -32.516988 39.384352 6618.9028 1.7435926e+09 0.10071439 0.024452548 -32.586122 39.278873 6620.9706 1.6496236e+09 0.099643963 0.025079968 -32.655088 39.173393 6623.0383 1.5606084e+09 0.097896563 0.024506028 -32.724055 39.067914 6625.1061 1.4761308e+09 0.096172831 0.025524190 -32.793023 38.962436 6627.1738 1.3929841e+09 0.093788690 0.025383957 -32.861873 38.856957 6629.2416 1.3125913e+09 0.092316950 0.026065428 -32.926783 38.751478 6631.3093 1.2329027e+09 0.090349021 0.025962186 -32.991693 38.645998 6633.3771 1.1656875e+09 0.088887190 0.026218085 -33.054569 38.547129 6635.4448 1.1121153e+09 0.087455745 0.026466494 -33.115871 38.453372 6637.5126 1.0680657e+09 0.086360038 0.025910376 -33.177173 38.359615 6639.5803 1.0270151e+09 0.085965919 0.025420661 -33.241329 38.256589 6641.6481 9.8092964e+08 0.086451167 0.025150501 -33.306239 38.151110 6643.7158 9.3558519e+08 0.085744865 0.025300695 -33.372475 38.046949 6645.7835 8.9077489e+08 0.084899635 0.025818745 -33.441453 37.945511 6647.8513 8.4606353e+08 0.084042829 0.026885988 -33.510431 37.844074 6649.9190 7.9810769e+08 0.083401393 0.026366841 -33.575905 37.739156 6651.9868 7.4927212e+08 0.082994662 0.027240392 -33.640815 37.633676 6654.0545 7.1019006e+08 0.082385615 0.028012996 -33.705725 37.528197 6656.1223 6.7470424e+08 0.080693695 0.028130739 -33.770635 37.422719 6658.1900 6.4622393e+08 0.079277989 0.030398087 -33.835545 37.317241 6660.2578 6.1463888e+08 0.077916381 0.031860297 -33.896677 37.211761 6662.3255 5.8748004e+08 0.076496949 0.032861638 -33.957531 37.106282 6664.3933 5.5820219e+08 0.075421654 0.030767161 -34.020277 37.000802 6666.4610 5.3175487e+08 0.075279358 0.026998428 -34.085187 36.895324 6668.5288 5.0482750e+08 0.074258187 0.027938684 -34.150098 36.789859 6670.5965 4.7454039e+08 0.074077804 0.027052283 -34.215007 36.688429 6672.6642 4.5248113e+08 0.073673582 0.027264609 -34.279917 36.587007 6674.7320 4.3019428e+08 0.072316235 0.029572276 -34.339022 36.489697 6676.7997 4.1659681e+08 0.069975556 0.032229152 -34.393112 36.395939 6678.8675 4.0158915e+08 0.069187406 0.030356402 -34.447202 36.302181 6680.9352 3.8301620e+08 0.070186117 0.029643372 -34.506456 36.199475 6683.0030 3.6761139e+08 0.070891065 0.031192947 -34.567309 36.093997 6685.0707 3.5128217e+08 0.070836577 0.032779541 -34.628165 35.988514 6687.1385 3.3546971e+08 0.069229059 0.034265673 -34.689027 35.883018 6689.2062 3.1995695e+08 0.066730832 0.033830395 -34.749889 35.777522 6691.2740 3.0133714e+08 0.065965784 0.032936625 -34.810744 35.675423 6693.3417 2.8573469e+08 0.065181465 0.031486861 -34.871598 35.574001 6695.4095 2.7167621e+08 0.064786409 0.029784261 -34.932451 35.471083 6697.4772 2.6076112e+08 0.064077603 0.030151656 -34.993305 35.365605 6699.5450 2.4853260e+08 0.062614258 0.031087599 -35.054159 35.260127 6701.6127 2.3721549e+08 0.060779655 0.032308446 -35.115011 35.154649 6703.6804 2.2793738e+08 0.060709279 0.035377920 -35.175864 35.049170 6705.7482 2.1867210e+08 0.060539486 0.037998736 -35.234935 34.945473 6707.8159 2.0990900e+08 0.059965899 0.040069944 -35.291731 34.844051 6709.8837 1.9857076e+08 0.058689160 0.040570478 -35.348527 34.742629 6711.9514 1.8603696e+08 0.056375355 0.041774698 -35.417746 34.622574 6714.0192 1.7429062e+08 0.053991623 0.047304850 -35.487295 34.502022 6716.0869 1.6926823e+08 0.051995378 0.048529387 -35.546420 34.393790 6718.1547 1.6207487e+08 0.049567091 0.050053297 -35.603217 34.288312 6720.2224 1.5639138e+08 0.048336829 0.050393996 -35.660013 34.184263 6722.2902 1.4604624e+08 0.047692629 0.050246490 -35.716809 34.082841 6724.3579 1.3748307e+08 0.044490304 0.046937909 -35.773605 33.981420 6726.4257 1.3474287e+08 0.041151835 0.040955206 -35.830401 33.876397 6728.4934 1.3037740e+08 0.040361773 0.040327409 -35.887197 33.770917 6730.5611 1.2554566e+08 0.038554390 0.041148302 -35.943993 33.667151 6732.6289 1.1597547e+08 0.036779050 0.043855986 -36.000791 33.565729 6734.6966 1.1113512e+08 0.036184836 0.049311685 -36.057589 33.464306 6736.7644 1.0846060e+08 0.037589921 0.053244809 -36.114393 33.358985 6738.8321 1.0308786e+08 0.038022230 0.061902359 -36.171198 33.253492 6740.8999 98687388. 0.036691516 0.065587649 -36.231999 33.140575 6742.9676 92763434. 0.032850437 0.070968551 -36.296910 33.020025 6745.0354 89295486. 0.029213214 0.078581756 -36.357729 32.905904 6747.1031 84683927. 0.024035200 0.067325662 -36.410469 32.804482 6749.1709 80902489. 0.023099307 0.072231151 -36.463209 32.703061 6751.2386 76604993. 0.019140090 0.073812557 -36.519483 32.598105 6753.3064 75740454. 0.015885309 0.073968715 -36.576279 32.492627 6755.3741 73890733. 0.012241352 0.074441325 -36.634488 32.382909 6757.4418 69976806. 0.0069773451 0.075399162 -36.694764 32.266995 6759.5096 67746551. 0.00060433145 0.075942928 -36.753159 32.153684 6761.5773 64328292. -0.041737723 0.078015925 -36.805898 32.048206 6763.6451 62065036. -0.0010321162 0.078402395 -36.858636 31.942727 6765.7128 57946665. 0.084371359 0.079661324 -36.911375 31.840431