# # 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 = 58.143891 km # Date (UTC) = 2014-01-06T10:05:35.718 # Date (julian) = 2456663.92055229 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6494.4974 5.0334107e+10 0.038095751 0.030623927 -31.929891 49.237411 6496.8424 4.6085341e+10 0.045290574 0.031331041 -32.042322 49.127677 6499.1873 4.2500359e+10 0.052112926 0.032038156 -32.144572 49.025426 6501.5323 3.9512372e+10 0.058636180 0.032745270 -32.246823 48.923175 6503.8773 3.6860343e+10 0.065013591 0.033452384 -32.361446 48.808552 6506.2222 3.4362018e+10 0.071469799 0.034159498 -32.476465 48.693533 6508.5672 3.1955049e+10 0.078193256 0.034866612 -32.591484 48.578515 6510.9121 2.9684716e+10 0.085352090 0.035573726 -32.706502 48.463496 6513.2571 2.7566694e+10 0.093171652 0.036280840 -32.821521 48.348477 6515.6020 2.5587360e+10 0.10181162 0.036987955 -32.936540 48.233458 6517.9470 2.3708277e+10 0.11144081 0.037695069 -33.049497 48.118440 6520.2919 2.1927964e+10 0.12216573 0.038402183 -33.159916 48.003421 6522.6369 2.0270993e+10 0.13232104 0.039084023 -33.266963 47.890790 6524.9818 1.8919264e+10 0.13983809 0.039775757 -33.365110 47.784464 6527.3268 1.7751880e+10 0.14622041 0.040953712 -33.463257 47.678138 6529.6717 1.6650946e+10 0.15286946 0.043305785 -33.567766 47.564602 6532.0167 1.5451097e+10 0.15955273 0.046698124 -33.673583 47.449582 6534.3616 1.4212051e+10 0.16432005 0.048045719 -33.782418 47.334564 6536.7066 1.3038894e+10 0.16768125 0.048422699 -33.892837 47.219545 6539.0515 1.1937459e+10 0.16949460 0.049706011 -34.001044 47.104518 6541.3965 1.0919193e+10 0.16916835 0.051197951 -34.106877 46.989481 6543.7414 1.0034106e+10 0.16711165 0.051576488 -34.207807 46.877137 6546.0864 9.3253757e+09 0.16483978 0.052535613 -34.297777 46.770811 6548.4313 8.7491633e+09 0.16355989 0.053796460 -34.387746 46.664485 6550.7763 8.2313625e+09 0.16199245 0.055179738 -34.491404 46.550651 6553.1212 7.6953782e+09 0.16081151 0.055274117 -34.597222 46.435632 6555.4662 7.1317483e+09 0.15906346 0.054461644 -34.699862 46.320613 6557.8112 6.5963771e+09 0.15745901 0.053357674 -34.801078 46.205594 6560.1561 6.1215093e+09 0.15549360 0.052133559 -34.896483 46.095066 6562.5011 5.7407236e+09 0.15324313 0.050403127 -34.986452 45.988738 6564.8460 5.4262313e+09 0.15134655 0.048388185 -35.077224 45.881790 6567.1910 5.1342005e+09 0.14977528 0.046455723 -35.178441 45.766771 6569.5359 4.8308647e+09 0.14848474 0.044887304 -35.279658 45.651752 6571.8809 4.5387664e+09 0.14737059 0.044262693 -35.376757 45.536718 6574.2258 4.2635505e+09 0.14536778 0.042746545 -35.473387 45.421682 6576.5708 3.9984713e+09 0.14349186 0.040714422 -35.570006 45.303325 6578.9157 3.7451422e+09 0.14086078 0.037203577 -35.666622 45.183706 6581.2607 3.5121945e+09 0.13859551 0.035517672 -35.757321 45.073665 6583.6056 3.3214173e+09 0.13631881 0.034715124 -35.843200 44.971428 6585.9506 3.1565735e+09 0.13352560 0.033210804 -35.930214 44.867839 6588.2955 3.0017359e+09 0.13123550 0.033281236 -36.026831 44.752820 6590.6405 2.8382561e+09 0.12833033 0.029870661 -36.123449 44.637801 6592.9854 2.6650174e+09 0.12599436 0.027116364 -36.220064 44.518493 6595.3304 2.5079859e+09 0.12364059 0.025657834 -36.316679 44.398872 6597.6753 2.3699252e+09 0.12162344 0.025509614 -36.402048 44.292439 6600.0203 2.2597731e+09 0.12098388 0.025031601 -36.483838 44.190202 6602.3652 2.1656039e+09 0.12045443 0.027204945 -36.568837 44.083954 6604.7102 2.0632118e+09 0.11950506 0.026492970 -36.660866 43.968918 6607.0552 1.9534550e+09 0.11855546 0.025598088 -36.752893 43.853240 6609.4001 1.8383571e+09 0.11553751 0.023824782 -36.844906 43.733622 6611.7451 1.7335024e+09 0.11295410 0.024483329 -36.936920 43.614003 6614.0900 1.6333082e+09 0.11200495 0.023878479 -37.024489 43.498830 6616.4350 1.5368431e+09 0.11055586 0.023350566 -37.111905 43.383811 6618.7799 1.4582095e+09 0.10975841 0.024359724 -37.194860 43.278928 6621.1249 1.3927199e+09 0.10866339 0.025048059 -37.276650 43.176691 6623.4698 1.3343251e+09 0.10659613 0.024665887 -37.360395 43.068409 6625.8148 1.2736400e+09 0.10489079 0.026369872 -37.447809 42.948788 6628.1597 1.2077395e+09 0.10271801 0.025767945 -37.535223 42.829969 6630.5047 1.1439652e+09 0.10068763 0.025929545 -37.622636 42.714950 6632.8496 1.0840398e+09 0.098668683 0.026134223 -37.710050 42.599924 6635.1946 1.0204744e+09 0.096661390 0.026428968 -37.797465 42.480310 6637.5395 9.5912882e+08 0.094717669 0.025897165 -37.884881 42.360692 6639.8845 9.0816479e+08 0.093881752 0.025311939 -37.960888 42.255436 6642.2294 8.6908294e+08 0.093592043 0.025161085 -38.034509 42.153185 6644.5744 8.3599887e+08 0.092382681 0.025405685 -38.113400 42.046056 6646.9193 7.9631297e+08 0.091330629 0.026396029 -38.200813 41.931037 6649.2643 7.5874811e+08 0.090294823 0.027269369 -38.287268 41.815059 6651.6092 7.2138035e+08 0.089992265 0.026951066 -38.370081 41.695440 6653.9542 6.8575749e+08 0.089394131 0.028012842 -38.452895 41.575982 6656.2992 6.5330658e+08 0.087526848 0.028285982 -38.535708 41.460964 6658.6441 6.1820043e+08 0.085923898 0.031203412 -38.618522 41.345945 6660.9891 5.8542236e+08 0.084449112 0.032525003 -38.701336 41.230926 6663.3340 5.5510040e+08 0.083098247 0.032390650 -38.784150 41.115906 6665.6790 5.2759329e+08 0.082660402 0.027434627 -38.857820 41.006865 6668.0239 5.0681801e+08 0.081770862 0.027491937 -38.927341 40.900538 6670.3689 4.8709394e+08 0.080999540 0.027157743 -39.000086 40.792102 6672.7138 4.6422807e+08 0.080491970 0.027293342 -39.082899 40.677084 6675.0588 4.4039823e+08 0.078777551 0.029910926 -39.165396 40.562064 6677.4037 4.1944037e+08 0.076511412 0.031784283 -39.243622 40.447028 6679.7487 4.0367958e+08 0.076139622 0.029649099 -39.321847 40.331992 6682.0936 3.8396144e+08 0.076758576 0.030496078 -39.400060 40.212851 6684.4386 3.6525293e+08 0.076633739 0.032676348 -39.478272 40.093232 6686.7835 3.4403962e+08 0.075046784 0.034216956 -39.556484 39.976935 6689.1285 3.2769452e+08 0.071778679 0.033900367 -39.634697 39.861916 6691.4734 3.1382356e+08 0.070493389 0.032889563 -39.712910 39.746897 6693.8184 2.9543697e+08 0.069343037 0.031323330 -39.791123 39.631878 6696.1633 2.8193098e+08 0.069077027 0.029743651 -39.867611 39.515133 6698.5083 2.6923408e+08 0.068053899 0.030915510 -39.941223 39.395513 6700.8532 2.6040878e+08 0.066157848 0.031300596 -40.015762 39.276820 6703.1982 2.5176635e+08 0.065794987 0.034171193 -40.093974 39.161801 6705.5432 2.4161093e+08 0.065921039 0.037634220 -40.172057 39.046782 6707.8881 2.2985797e+08 0.065650101 0.040059606 -40.245671 38.931763 6710.2331 2.2049671e+08 0.064377850 0.040542113 -40.319285 38.816744 6712.5780 2.1280835e+08 0.062141246 0.042903128 -40.392897 38.697795 6714.9230 2.0664782e+08 0.059964384 0.047372797 -40.466509 38.578176 6717.2679 2.0123768e+08 0.057708230 0.049857697 -40.540121 38.461689 6719.6129 1.9292253e+08 0.055872030 0.050787572 -40.613733 38.346670 6721.9578 1.8393921e+08 0.056070101 0.050592494 -40.687351 38.231643 6724.3028 1.7447585e+08 0.053275919 0.047398332 -40.760974 38.116607 6726.6477 1.6843413e+08 0.049896968 0.040957209 -40.833055 38.001577 6728.9927 1.6167225e+08 0.049397822 0.041035046 -40.902066 37.886558 6731.3376 1.5601600e+08 0.047373012 0.042421966 -40.971814 37.770801 6733.6826 1.5009418e+08 0.046056289 0.047630233 -41.045427 37.651180 6736.0275 1.4294905e+08 0.047497178 0.050459094 -41.119036 37.531562 6738.3725 1.3981676e+08 0.048626581 0.059371790 -41.188111 37.416480 6740.7174 1.3562309e+08 0.047777305 0.065275980 -41.257123 37.301461 6743.0624 1.2983271e+08 0.044045733 0.071468317 -41.326134 37.186442 6745.4073 1.2606343e+08 0.040898904 0.078738130 -41.395144 37.071424 6747.7523 1.1973509e+08 0.036658698 0.067102175 -41.473829 36.945890 6750.0972 1.1496370e+08 0.034159986 0.072170184 -41.557961 36.814437 6752.4422 1.1062276e+08 0.031477066 0.073622770 -41.627538 36.695113 6754.7872 1.0559728e+08 0.029989880 0.074947634 -41.691948 36.580094 6757.1321 1.0170678e+08 0.027373344 0.076339158 -41.758955 36.462478 6759.4771 1.0027590e+08 0.028496039 0.075935076 -41.827966 36.342859 6761.8220 95855242. 0.031710824 0.078036139 -41.896977 36.225038 6764.1670 92048474. 0.035511146 0.079491284 -41.965989 36.110019 6766.5119 87761484. 0.036718971 0.080871703 -42.037143 35.991429 6768.8569 82481678. 0.032299373 0.083939228 -42.116014 35.859976 6771.2018 81475465. 0.028013090 0.089794636 -42.190322 35.733709 6773.5468 78685528. 0.023865049 0.095482177 -42.254734 35.618690 6775.8917 77469803. 0.019694123 0.10116972 -42.319147 35.503669 6778.2367 75913007. 0.015532714 0.10685726 -42.383567 35.388633 6780.5816 71585929. 0.011432868 0.11254480 -42.447987 35.273597 6782.9266 67709455. 0.0073359757 0.11823234 -42.521301 35.142678 6785.2715 65449964. 0.0032125335 0.12391988 -42.594291 35.012032 6787.6165 64170269. -0.00092605288 0.12960742 -42.658710 34.892394 6789.9614 64285942. -0.0050863924 0.13529496 -42.723130 34.772756 6792.3064 61211678. -0.0091772587 0.14098250 -42.795763 34.642563 6794.6513 57411191. -0.013242923 0.14667004 -42.869364 34.511132 6796.9963 55453837. -0.017324847 0.15235758 -42.933864 34.395952 6799.3412 55518418. -0.021425131 0.15804512 -42.998275 34.280934 6801.6862 54573048. -0.025475773 0.16373266 -43.070214 34.152472 6804.0312 52597328. -0.029489547 0.16942020 -43.143830 34.021019 6806.3761 51224866. -0.033519260 0.17510774 -43.204796 33.904622 6808.7211 48841598. -0.037519416 0.18079528 -43.264605 33.789603 6811.0660 49779567. -0.041617513 0.18648282 -43.334665 33.662380 6813.4110 50643717. -0.045725895 0.19217036 -43.408278 33.530927 6815.7559 49280824. -0.049785051 0.19785790 -43.477471 33.399474 6818.1009 48169181. -0.053837681 0.20354544 -43.545827 33.268022 6820.4458 42498879. -0.058093289 0.20923298 -43.619119 33.136569 6822.7908 38393853. -0.063635862 0.21492053 -43.692220 33.005726 6825.1357 39213859. -0.066670703 0.22060807 -43.752030 32.890708 6827.4807 42137976. -0.068604122 0.22629561 -43.811840 32.775689