# # 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 = 47.863210 km # Date (UTC) = 2014-12-29T10:29:24.082 # Date (julian) = 2457020.93708429 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6483.9651 1.5021552e+11 0.0097727327 0.027447921 -36.879334 49.825036 6485.8792 1.1637701e+11 0.017035262 0.028025107 -36.969462 49.744923 6487.7932 1.0224689e+11 0.022443653 0.028602294 -37.062890 49.660410 6489.7073 9.0495437e+10 0.027505373 0.029179481 -37.160530 49.570280 6491.6214 8.0749538e+10 0.032185875 0.029756667 -37.258170 49.480149 6493.5355 7.3683850e+10 0.036358903 0.030333854 -37.349986 49.395196 6495.4496 6.8728776e+10 0.040078188 0.030911041 -37.440127 49.311733 6497.3637 6.5082490e+10 0.043406804 0.031488227 -37.530267 49.228270 6499.2777 6.1349639e+10 0.046454124 0.032065414 -37.617791 49.147424 6501.1918 5.8095897e+10 0.049377514 0.032642601 -37.704581 49.067311 6503.1059 5.5049928e+10 0.052654342 0.033219788 -37.791372 48.987198 6505.0200 5.2369593e+10 0.056924353 0.033796974 -37.875540 48.904462 6506.9341 5.0085357e+10 0.062818242 0.034374161 -37.958992 48.821010 6508.8482 4.6343614e+10 0.069948269 0.034951348 -38.042444 48.737558 6510.7622 4.2835778e+10 0.079158310 0.035528534 -38.128531 48.656742 6512.6763 3.9862127e+10 0.090898477 0.036105721 -38.215321 48.576628 6514.5904 3.7284140e+10 0.10510964 0.036682908 -38.302110 48.496513 6516.5045 3.5464988e+10 0.12155066 0.037260094 -38.394543 48.405456 6518.4186 3.2984434e+10 0.13717634 0.037837281 -38.488443 48.311557 6520.3327 3.0283255e+10 0.15074691 0.038414468 -38.580969 48.219470 6522.2467 2.7968637e+10 0.16124232 0.038981862 -38.664420 48.139357 6524.1608 2.5950448e+10 0.16519586 0.039484093 -38.747872 48.059244 6526.0749 2.4303311e+10 0.16793095 0.039746615 -38.830871 47.978678 6527.9890 2.2971748e+10 0.17177085 0.041434488 -38.910985 47.895226 6529.9031 2.1549803e+10 0.17440814 0.043674296 -38.991100 47.811774 6531.8172 1.9895944e+10 0.17559816 0.046418056 -39.071214 47.728789 6533.7312 1.8157295e+10 0.17569400 0.047830341 -39.151327 47.648675 6535.6453 1.6626890e+10 0.17482955 0.047944360 -39.231440 47.568560 6537.5594 1.5484274e+10 0.17498741 0.048948959 -39.311555 47.487963 6539.4735 1.4562650e+10 0.17428513 0.050216770 -39.391680 47.404500 6541.3876 1.3772757e+10 0.17273153 0.051200843 -39.471805 47.321037 6543.3017 1.2894939e+10 0.17134607 0.051461063 -39.551928 47.238072 6545.2157 1.2154973e+10 0.17030016 0.052457500 -39.632041 47.157958 6547.1298 1.1291259e+10 0.16897897 0.053336732 -39.712154 47.077844 6549.0439 1.0413768e+10 0.16713453 0.054011019 -39.793226 46.995621 6550.9580 9.7438279e+09 0.16589629 0.055225231 -39.879600 46.901736 6552.8721 9.1972924e+09 0.16501310 0.055367268 -39.965974 46.807851 6554.7862 8.7348783e+09 0.16334955 0.054848877 -40.047643 46.719081 6556.7002 8.1418550e+09 0.16125810 0.053910178 -40.124419 46.635629 6558.6143 7.5504553e+09 0.15891958 0.052715831 -40.201196 46.552178 6560.5284 7.0173751e+09 0.15643910 0.051797889 -40.277972 46.470377 6562.4425 6.5051145e+09 0.15412230 0.050458865 -40.354748 46.390264 6564.3566 6.0492893e+09 0.15168289 0.048610002 -40.431524 46.310151 6566.2706 5.7078485e+09 0.14977698 0.047029779 -40.508304 46.228366 6568.1847 5.3961772e+09 0.14857803 0.045601850 -40.585090 46.144904 6570.0988 5.1293863e+09 0.14751007 0.044876576 -40.661876 46.061441 6572.0129 4.8152074e+09 0.14624210 0.044222769 -40.736975 45.979664 6573.9270 4.5674735e+09 0.14424107 0.042913602 -40.810412 45.899549 6575.8411 4.3537730e+09 0.14259941 0.041530857 -40.883849 45.819435 6577.7551 4.1708701e+09 0.14076747 0.039034219 -40.961948 45.732328 6579.6692 3.9587702e+09 0.13866925 0.036702592 -41.044567 45.638444 6581.5833 3.8236077e+09 0.13652516 0.035419974 -41.127186 45.544559 6583.4974 3.6110782e+09 0.13490700 0.034769907 -41.202048 45.459489 6585.4115 3.4328357e+09 0.13321050 0.033641805 -41.275487 45.376037 6587.3256 3.1859476e+09 0.13194819 0.033230502 -41.348925 45.292585 6589.2396 2.9978792e+09 0.13023886 0.032570542 -41.419535 45.211959 6591.1537 2.9263426e+09 0.12761692 0.029028445 -41.489644 45.131836 6593.0678 2.8011861e+09 0.12555312 0.027039177 -41.559752 45.051712 6594.9819 2.7721759e+09 0.12271367 0.025633510 -41.629853 44.968747 6596.8960 2.6775951e+09 0.11982747 0.025723200 -41.699952 44.885295 6598.8101 2.5947259e+09 0.11745909 0.025020414 -41.770051 44.801843 6600.7241 2.4821445e+09 0.11683015 0.026478581 -41.840152 44.718391 6602.6382 2.3848256e+09 0.11548613 0.026971996 -41.910252 44.634939 6604.5523 2.2870601e+09 0.11408786 0.026399220 -41.980353 44.551487 6606.4664 2.1933281e+09 0.11326349 0.026665870 -42.058010 44.462276 6608.3805 2.1153728e+09 0.11097100 0.023722312 -42.136873 44.372146 6610.2946 2.0087950e+09 0.10859039 0.024284423 -42.213987 44.283349 6612.2086 1.9137011e+09 0.10691399 0.024164862 -42.284086 44.199897 6614.1227 1.8348313e+09 0.10606636 0.023855939 -42.354186 44.116445 6616.0368 1.7312643e+09 0.10487806 0.023288076 -42.423607 44.032991 6617.9509 1.6333645e+09 0.10460616 0.023754514 -42.490377 43.949528 6619.8650 1.5494735e+09 0.10410745 0.024734618 -42.557148 43.866065 6621.7791 1.4871461e+09 0.10302059 0.024831225 -42.623917 43.782604 6623.6931 1.4561095e+09 0.10112563 0.024748623 -42.690678 43.699152 6625.6072 1.4158061e+09 0.099884638 0.026122204 -42.757440 43.615700 6627.5213 1.3500855e+09 0.098064383 0.025518183 -42.825977 43.530828 6629.4354 1.2805572e+09 0.096950444 0.026030385 -42.901084 43.440700 6631.3495 1.2113620e+09 0.095344716 0.025966265 -42.976191 43.350571 6633.2636 1.1488280e+09 0.094092267 0.026198267 -43.046709 43.264114 6635.1776 1.1020869e+09 0.092608788 0.026426427 -43.113470 43.180662 6637.0917 1.0599378e+09 0.091030798 0.026116489 -43.180232 43.097210 6639.0058 1.0200334e+09 0.089738718 0.025626000 -43.245149 43.013752 6640.9199 9.8832936e+08 0.090028905 0.025158102 -43.308582 42.930289 6642.8340 9.5581116e+08 0.089313340 0.025185824 -43.372015 42.846825 6644.7481 9.2255237e+08 0.088048982 0.025424455 -43.439873 42.759637 6646.6621 8.8295444e+08 0.086860153 0.026262891 -43.511225 42.669507 6648.5762 8.4029674e+08 0.085907725 0.027350008 -43.582577 42.579377 6650.4903 8.0193643e+08 0.085627803 0.026367481 -43.649816 42.495230 6652.4044 7.6187460e+08 0.085400609 0.027361784 -43.716578 42.411778 6654.3185 7.3304090e+08 0.084711505 0.027900555 -43.783339 42.328327 6656.2326 7.0496192e+08 0.083145962 0.028227528 -43.844091 42.244875 6658.1466 6.8645760e+08 0.081867315 0.030321141 -43.904176 42.161423 6660.0607 6.6622631e+08 0.080602056 0.031681188 -43.964262 42.077971 6661.9748 6.4175777e+08 0.079243642 0.033031437 -44.034538 41.988480 6663.8889 6.0895274e+08 0.078121218 0.032236881 -44.105890 41.898351 6665.8030 5.7933198e+08 0.078250695 0.027231439 -44.175328 41.809833 6667.7171 5.5423102e+08 0.077678451 0.027366843 -44.238760 41.726370 6669.6311 5.3122771e+08 0.076892426 0.027707484 -44.302191 41.642907 6671.5452 5.1788643e+08 0.076649123 0.026873118 -44.366648 41.556877 6673.4593 4.9087118e+08 0.076151141 0.028146135 -44.434245 41.462992 6675.3734 4.6944563e+08 0.074449543 0.030513523 -44.501843 41.369108 6677.2875 4.4786537e+08 0.072754381 0.031949554 -44.565057 41.281310 6679.2015 4.2831065e+08 0.072225312 0.030101220 -44.625142 41.197858 6681.1156 4.1864515e+08 0.072938481 0.029746070 -44.685228 41.114407 6683.0297 4.0089119e+08 0.073361664 0.031232130 -44.749728 41.027030 6684.9438 3.8278003e+08 0.073085763 0.032701986 -44.817325 40.936900 6686.8579 3.6728339e+08 0.071493759 0.034260213 -44.884922 40.846770 6688.7720 3.5140892e+08 0.068907854 0.033963386 -44.945572 40.762816 6690.6860 3.3926857e+08 0.067846643 0.033037242 -45.005658 40.679364 6692.6001 3.2541198e+08 0.067060724 0.032068433 -45.065743 40.595912 6694.5142 3.1334248e+08 0.066377527 0.030540329 -45.129320 40.502766 6696.4283 2.9910794e+08 0.066166137 0.029853734 -45.193162 40.408881 6698.3424 2.8496615e+08 0.065331168 0.030687773 -45.256006 40.318661 6700.2565 2.7301721e+08 0.063863580 0.030857944 -45.316098 40.238536 6702.1705 2.6489211e+08 0.062474353 0.033012912 -45.376190 40.158411 6704.0846 2.6018311e+08 0.062645535 0.036219111 -45.437298 40.074557 6705.9987 2.4899733e+08 0.062596735 0.038444115 -45.501141 39.980673 6707.9128 2.3385437e+08 0.062293073 0.040056069 -45.564983 39.886788 6709.8269 2.2021359e+08 0.061276067 0.040606608 -45.624510 39.799248 6711.7410 2.1660699e+08 0.059246573 0.041535244 -45.681257 39.715795 6713.6550 2.0980551e+08 0.057256989 0.046055779 -45.738004 39.632343 6715.5691 2.0451966e+08 0.055521230 0.047960676 -45.799096 39.544802 6717.4832 1.9680195e+08 0.053533945 0.049844380 -45.862939 39.454674 6719.3973 1.8793491e+08 0.051695460 0.050992381 -45.926781 39.364545 6721.3114 1.8180490e+08 0.051894681 0.050397718 -45.990622 39.270850 6723.2255 1.7278887e+08 0.050604104 0.049494687 -46.054463 39.176965 6725.1395 1.6344143e+08 0.046516072 0.041488854 -46.115315 39.086068 6727.0536 1.5870443e+08 0.044904403 0.040888941 -46.168731 39.002606 6728.9677 1.5502846e+08 0.044532810 0.040999661 -46.222147 38.919143 6730.8818 1.5178616e+08 0.042787681 0.041587948 -46.278602 38.833737 6732.7959 1.4938973e+08 0.041593651 0.043886727 -46.342445 38.743606 6734.7100 1.4571931e+08 0.041346780 0.049310883 -46.406287 38.653476 6736.6240 1.4362922e+08 0.042879409 0.052714231 -46.467769 38.560985 6738.5381 1.3727407e+08 0.043709736 0.060283713 -46.527855 38.467101 6740.4522 1.2972808e+08 0.043083132 0.064822881 -46.587941 38.373216 6742.3663 1.2430228e+08 0.040612457 0.069503287 -46.648028 38.282959 6744.2804 1.2174974e+08 0.036628503 0.078010274 -46.708114 38.192830 6746.1945 1.1818339e+08 0.035048568 0.076726502 -46.768200 38.101564 6748.1085 1.1333650e+08 0.031791098 0.067587931 -46.828286 38.007679 6750.0226 1.0459786e+08 0.029070180 0.072042761 -46.888372 37.913794 6751.9367 95186657. 0.026410353 0.074107715 -46.944185 37.826587 6753.8508 87158639. 0.025278575 0.075730597 -46.997594 37.743135 6755.7649 83712615. 0.023147902 0.074269998 -47.051003 37.659683 6757.6790 84982551. 0.022124702 0.074679609 -47.106295 37.571928 6759.5930 87286856. 0.022955231 0.075963064 -47.162627 37.481798 6761.5071 85839983. 0.024872670 0.078010123 -47.218960 37.391666 6763.4212 77042319. 0.028455904 0.077720550 -47.278976 37.297852 6765.3353 71037193. 0.030052682 0.079592401 -47.339062 37.203967 6767.2494 70081833. 0.028954791 0.081696536 -47.397954 37.111275 6769.1635 69102826. 0.024143408 0.084850707 -47.454292 37.021133 6771.0775 66602360. 0.019746676 0.089493200 -47.510631 36.930991 6772.9916 59999454. 0.014147311 0.094135693 -47.566964 36.838393 6774.9057 55788206. 0.0060013884 0.098778186 -47.623296 36.744508 6776.8198 54764742. -0.022586075 0.10342068 -47.679641 36.650636 6778.7339 53684800. -0.0049782380 0.10806317 -47.739689 36.560468 6780.6480 51973979. 0.037179857 0.11270566 -47.799776 36.470337