# # 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 = 43.386937 km # Date (UTC) = 2015-01-31T10:19:19.697 # Date (julian) = 2457053.93008909 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6488.3500 1.9884623e+11 0.0095151447 0.028770187 -19.768566 65.133076 6489.9519 1.6529935e+11 0.014508393 0.029253217 -20.052079 65.009275 6491.5537 1.4251764e+11 0.018971259 0.029736248 -20.378880 64.864726 6493.1555 1.2203880e+11 0.023070154 0.030219279 -20.701407 64.720148 6494.7574 1.0552994e+11 0.026781024 0.030702309 -21.015613 64.578446 6496.3592 9.4828041e+10 0.030350651 0.031185340 -21.272087 64.462783 6497.9611 8.6255431e+10 0.033993331 0.031668370 -21.534293 64.343204 6499.5629 8.0238311e+10 0.038090702 0.032151401 -21.842239 64.192375 6501.1647 7.3571824e+10 0.042530562 0.032634431 -22.146963 64.041520 6502.7666 6.6978296e+10 0.047442219 0.033117462 -22.448715 63.890644 6504.3684 6.2018144e+10 0.053409162 0.033600492 -22.689686 63.772495 6505.9703 5.7848582e+10 0.060435697 0.034083523 -22.926044 63.656831 6507.5721 5.4049074e+10 0.068531103 0.034566554 -23.217938 63.508075 6509.1739 5.0003642e+10 0.077492167 0.035049584 -23.490913 63.367784 6510.7758 4.6042112e+10 0.087402536 0.035532615 -23.722243 63.247090 6512.3776 4.2475104e+10 0.098298338 0.036015645 -23.972170 63.113238 6513.9795 3.9242993e+10 0.11005915 0.036498676 -24.254977 62.956122 6515.5813 3.6213319e+10 0.12256009 0.036981706 -24.490397 62.827055 6517.1831 3.3547931e+10 0.13504007 0.037464737 -24.711670 62.706362 6518.7850 3.1381177e+10 0.14652610 0.037947767 -24.929011 62.585668 6520.3868 2.9380994e+10 0.15644634 0.038430798 -25.145254 62.464974 6521.9887 2.7725031e+10 0.16503434 0.038913829 -25.361455 62.340316 6523.5905 2.6106103e+10 0.16856883 0.039325464 -25.577646 62.214623 6525.1923 2.4431382e+10 0.17258159 0.039760265 -25.827251 62.063626 6526.7942 2.2641447e+10 0.17505181 0.040500681 -26.073995 61.913173 6528.3960 2.0966204e+10 0.17680740 0.041756639 -26.280180 61.787450 6529.9978 1.9635661e+10 0.17947395 0.043825271 -26.486354 61.661735 6531.5997 1.8519833e+10 0.18015149 0.046101534 -26.692490 61.536042 6533.2015 1.7496529e+10 0.18113133 0.047605231 -26.896265 61.410342 6534.8034 1.6501453e+10 0.18135143 0.048169291 -27.092392 61.284619 6536.4052 1.5628265e+10 0.17990385 0.048153052 -27.288518 61.158897 6538.0070 1.4860855e+10 0.18004505 0.049160113 -27.484645 61.033175 6539.6089 1.4132570e+10 0.17945588 0.050380672 -27.679458 60.907460 6541.2107 1.3450098e+10 0.17765071 0.051258191 -27.870512 60.781767 6542.8126 1.2770842e+10 0.17635549 0.051310734 -28.061577 60.656066 6544.4144 1.2108734e+10 0.17477817 0.051980523 -28.252675 60.530344 6546.0162 1.1505682e+10 0.17254688 0.052477896 -28.440942 60.403207 6547.6181 1.0932792e+10 0.17165912 0.053522412 -28.621983 60.272456 6549.2199 1.0407763e+10 0.16957365 0.054190404 -28.804496 60.143179 6550.8218 9.8903705e+09 0.16770005 0.055191123 -28.990566 60.017456 6552.4236 9.3793874e+09 0.16628478 0.055480145 -29.173561 59.890212 6554.0254 8.9095403e+09 0.16376044 0.054832914 -29.349530 59.759491 6555.6273 8.4761917e+09 0.16195284 0.054326294 -29.525513 59.628760 6557.2291 8.0644075e+09 0.16035859 0.053722490 -29.701524 59.498009 6558.8310 7.6647112e+09 0.15796349 0.052531219 -29.877536 59.367259 6560.4328 7.2768081e+09 0.15603645 0.051884079 -30.053547 59.236509 6562.0346 6.8895743e+09 0.15401050 0.050846936 -30.226142 59.107470 6563.6365 6.5459380e+09 0.15156255 0.049192099 -30.392057 58.981777 6565.2383 6.2200399e+09 0.14995997 0.048047775 -30.559742 58.854316 6566.8402 5.9211809e+09 0.14817899 0.046707605 -30.730725 58.723564 6568.4420 5.6291928e+09 0.14655332 0.045365354 -30.898077 58.592812 6570.0438 5.3271771e+09 0.14554014 0.044899347 -31.059002 58.462062 6571.6457 5.0594026e+09 0.14393487 0.044326926 -31.211497 58.339427 6573.2475 4.8643857e+09 0.14210448 0.043458849 -31.349786 58.230471 6574.8494 4.7094719e+09 0.14023312 0.042447058 -31.488091 58.121491 6576.4512 4.5573017e+09 0.13791083 0.040852048 -31.643689 57.986140 6578.0530 4.3854803e+09 0.13575362 0.038565851 -31.799548 57.850405 6579.6549 4.1561202e+09 0.13361423 0.036710479 -31.955445 57.719626 6581.2567 3.9423639e+09 0.13142658 0.035518869 -32.111118 57.589063 6582.8586 3.7630040e+09 0.12975594 0.035060155 -32.241025 57.480109 6584.4604 3.6210546e+09 0.12757606 0.034264712 -32.370931 57.371155 6586.0622 3.5081072e+09 0.12521605 0.033170492 -32.513860 57.248655 6587.6641 3.3710475e+09 0.12367069 0.033305505 -32.664693 57.117933 6589.2659 3.2091127e+09 0.12181920 0.032518410 -32.815548 56.984008 6590.8678 3.0464777e+09 0.11994321 0.029447891 -32.966414 56.848227 6592.4696 2.9077495e+09 0.11852190 0.027617399 -33.098362 56.729744 6594.0714 2.8070724e+09 0.11668646 0.026133306 -33.219889 56.620790 6595.6733 2.7310800e+09 0.11460405 0.025693392 -33.346401 56.504901 6597.2751 2.6533157e+09 0.11288443 0.025635909 -33.487209 56.369121 6598.8770 2.5526188e+09 0.11139454 0.024988473 -33.629367 56.234706 6600.4788 2.4266305e+09 0.11154185 0.025974203 -33.775171 56.103985 6602.0806 2.3093151e+09 0.11115572 0.027447817 -33.911797 55.978203 6603.6825 2.2221251e+09 0.10994067 0.026259246 -34.024943 55.865058 6605.2843 2.1446390e+09 0.10959829 0.026903566 -34.138089 55.751914 6606.8862 2.0633080e+09 0.10856131 0.025911560 -34.275985 55.623016 6608.4880 1.9750496e+09 0.10638370 0.023719469 -34.416793 55.492263 6610.0898 1.8977286e+09 0.10421868 0.024088820 -34.532534 55.377466 6611.6917 1.8370416e+09 0.10212104 0.024517368 -34.645680 55.264320 6613.2935 1.7764376e+09 0.10130804 0.023681284 -34.767963 55.139422 6614.8954 1.7030407e+09 0.10033128 0.023323624 -34.898682 55.003675 6616.4972 1.6234669e+09 0.099084686 0.023360335 -35.017846 54.882152 6618.0990 1.5510676e+09 0.098619301 0.023845583 -35.126802 54.773198 6619.7009 1.4930827e+09 0.097913149 0.024695025 -35.235758 54.663637 6621.3027 1.4459004e+09 0.096862794 0.024989109 -35.344713 54.550491 6622.9046 1.4095895e+09 0.095472754 0.024517229 -35.453668 54.437345 6624.5064 1.3665944e+09 0.094045451 0.025133383 -35.575338 54.307034 6626.1082 1.3115016e+09 0.093117957 0.026452997 -35.701060 54.171254 6627.7101 1.2583515e+09 0.091878668 0.025591103 -35.810649 54.052898 6629.3119 1.2118669e+09 0.091089532 0.026052709 -35.915413 53.939752 6630.9138 1.1757930e+09 0.089833796 0.025930553 -36.028204 53.817938 6632.5156 1.1332487e+09 0.088944695 0.026094170 -36.153896 53.682191 6634.1174 1.0856035e+09 0.087898263 0.026335409 -36.269679 53.555360 6635.7193 1.0376347e+09 0.086974569 0.026507654 -36.370253 53.442216 6637.3211 1.0005268e+09 0.086113378 0.026004138 -36.470828 53.329106 6638.9230 9.7020065e+08 0.085228926 0.025631432 -36.571402 53.220150 6640.5248 9.4157769e+08 0.085742717 0.025206442 -36.671975 53.111193 6642.1266 9.0728290e+08 0.085696317 0.025156878 -36.781934 52.985553 6643.7285 8.6832074e+08 0.084928028 0.025302610 -36.897599 52.849773 6645.3303 8.2695885e+08 0.084318409 0.025606426 -37.001050 52.728330 6646.9322 7.9044069e+08 0.083418618 0.026402662 -37.097433 52.615184 6648.5340 7.5875464e+08 0.082535935 0.027321744 -37.193812 52.502044 6650.1358 7.3182381e+08 0.082100277 0.026286334 -37.290177 52.388921 6651.7377 7.0538671e+08 0.081545831 0.027049488 -37.386543 52.275798 6653.3395 6.7292347e+08 0.081167049 0.027699006 -37.482923 52.162656 6654.9414 6.4914981e+08 0.080128759 0.027635199 -37.579307 52.049512 6656.5432 6.2447557e+08 0.078506505 0.028500178 -37.682445 51.925638 6658.1450 6.0900046e+08 0.077324768 0.030318303 -37.793080 51.789857 6659.7469 5.8729497e+08 0.076183513 0.031678799 -37.894760 51.663031 6661.3487 5.5590979e+08 0.075195713 0.032712558 -37.986954 51.545694 6662.9506 5.3215535e+08 0.074518050 0.032510954 -38.078731 51.428773 6664.5524 5.0682294e+08 0.073975048 0.030184898 -38.166733 51.315626 6666.1542 4.9542127e+08 0.073983108 0.026938650 -38.254736 51.202479 6667.7561 4.8660169e+08 0.073471095 0.027381177 -38.342727 51.089350 6669.3579 4.7959662e+08 0.072635669 0.027988099 -38.430712 50.976229 6670.9598 4.7810445e+08 0.072628382 0.026883993 -38.524445 50.855717 6672.5616 4.6678805e+08 0.072374006 0.027205109 -38.630051 50.719937 6674.1634 4.4845581e+08 0.071649126 0.029092658 -38.729714 50.591799 6675.7653 4.2556990e+08 0.070070885 0.031264138 -38.817715 50.478653 6677.3671 4.0333163e+08 0.069048860 0.031836327 -38.905717 50.365507 6678.9690 3.9408667e+08 0.068476464 0.030288536 -38.989733 50.252361 6680.5708 3.8907102e+08 0.069267066 0.029564675 -39.073545 50.139215 6682.1726 3.8496805e+08 0.069681325 0.030556441 -39.159724 50.026070 6683.7745 3.7822811e+08 0.069775797 0.032323580 -39.247726 49.912924 6685.3763 3.6412860e+08 0.069531856 0.033102317 -39.334227 49.799782 6686.9782 3.5521839e+08 0.068068192 0.034330189 -39.413832 49.686658 6688.5800 3.4553424e+08 0.065966332 0.033919072 -39.493437 49.573534 6690.1818 3.3320293e+08 0.064908772 0.033095026 -39.589652 49.438485 6691.7837 3.1820626e+08 0.064087282 0.032816368 -39.690231 49.297676 6693.3855 3.0149251e+08 0.063480237 0.031471834 -39.773972 49.179093 6694.9874 2.8964632e+08 0.063159588 0.029877201 -39.853594 49.065947 6696.5892 2.7760534e+08 0.062811148 0.029920583 -39.933215 48.952802 6698.1910 2.6635791e+08 0.062161372 0.030480030 -40.012835 48.839656 6699.7929 2.5630312e+08 0.061027999 0.030858839 -40.092456 48.726510 6701.3947 2.4604886e+08 0.059667077 0.031988599 -40.172076 48.613364 6702.9966 2.4006934e+08 0.059665174 0.033672481 -40.251697 48.500218 6704.5984 2.3293441e+08 0.059744875 0.036471395 -40.331308 48.384387 6706.2002 2.3005505e+08 0.059574613 0.038794890 -40.410914 48.267075 6707.8021 2.2298918e+08 0.059321027 0.040071931 -40.489444 48.150836 6709.4039 2.1770473e+08 0.058552646 0.040875637 -40.564875 48.037690 6711.0058 2.0979547e+08 0.057185564 0.040698775 -40.640306 47.924543 6712.6076 2.0096883e+08 0.055648825 0.042958050 -40.728887 47.791672 6714.2094 1.9156364e+08 0.053971029 0.047319153 -40.819407 47.655891 6715.8113 1.7998159e+08 0.052722409 0.048208331 -40.896602 47.540096 6717.4131 1.7462762e+08 0.051107097 0.049848716 -40.972031 47.426951 6719.0149 1.6611596e+08 0.049222733 0.051355636 -41.045380 47.311724 6720.6168 1.6143808e+08 0.049579721 0.050348301 -41.116621 47.194388 6722.2186 1.5230065e+08 0.049294760 0.050334922 -41.188324 47.077515 6723.8205 1.4599271e+08 0.047697281 0.049826533 -41.263754 46.964369 6725.4223 1.4652896e+08 0.044172057 0.041312224 -41.339185 46.851223 6727.0241 1.3883800e+08 0.042919458 0.040928214 -41.411570 46.738094 6728.6260 1.3242765e+08 0.042768513 0.040515330 -41.482795 46.624971 6730.2278 1.2496326e+08 0.041503738 0.040691282 -41.554025 46.511840 6731.8297 1.1482475e+08 0.040198862 0.043401217 -41.625266 46.398694 6733.4315 1.1277734e+08 0.039491567 0.046267088 -41.696507 46.285548 6735.0333 1.0617526e+08 0.039837192 0.049328833 -41.767746 46.168417 6736.6352 1.0475275e+08 0.041100380 0.052756369 -41.838986 46.051080 6738.2370 1.0159122e+08 0.041800221 0.058626034 -41.915433 45.923329 6739.8389 96569117. 0.041418190 0.063853165 -41.995896 45.787549 6741.4407 90347122. 0.039613800 0.067015613 -42.071045 45.664810 6743.0425 81322419. 0.035870889 0.071334459 -42.142285 45.551664 6744.6444 75770826. 0.030673500 0.078291828 -42.212728 45.438522 6746.2462 67231498. 0.014475964 0.076124622 -42.279764 45.325399 6747.8481 61115157. 0.022168226 0.067069205 -42.346799 45.212276 6749.4499 59428781. 0.048410968 0.072154748 -42.413846 45.095770