# # 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 = 47.179756 km # Date (UTC) = 2013-01-14T10:04:37.999 # Date (julian) = 2456306.91988425 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6495.6929 2.2730126e+11 0.032173433 0.030984426 -31.748743 50.171255 6497.8985 1.7970041e+11 0.040027962 0.031649499 -31.863900 50.056099 6500.1040 1.4677281e+11 0.047651737 0.032314572 -31.992484 49.927516 6502.3095 1.2340473e+11 0.055217520 0.032979645 -32.119488 49.798934 6504.5151 1.0488319e+11 0.062839145 0.033644718 -32.243126 49.670352 6506.7206 1.0262567e+11 0.071953004 0.034309791 -32.365286 49.541776 6508.9261 9.0593572e+10 0.080729799 0.034974864 -32.483957 49.413214 6511.1317 7.9728980e+10 0.089919976 0.035639937 -32.599748 49.289061 6513.3372 7.1432150e+10 0.099923288 0.036305010 -32.707945 49.176538 6515.5427 6.5378552e+10 0.11098238 0.036970083 -32.816141 49.064014 6517.7483 5.9472660e+10 0.12265813 0.037635156 -32.934460 48.936003 6519.9538 5.3390288e+10 0.13488571 0.038300229 -33.053153 48.807418 6522.1593 4.7193388e+10 0.14707471 0.038958978 -33.171844 48.678836 6524.3649 4.1226310e+10 0.15396395 0.039556586 -33.290535 48.550254 6526.5704 3.7281132e+10 0.16063016 0.040266102 -33.391589 48.436464 6528.7760 3.3538829e+10 0.16645452 0.042058046 -33.491114 48.323956 6530.9815 3.0588304e+10 0.17135345 0.045202759 -33.599305 48.201653 6533.1870 2.7733820e+10 0.17633153 0.047599065 -33.713051 48.073071 6535.3926 2.4860793e+10 0.17769627 0.048054008 -33.818447 47.953928 6537.5981 2.2977076e+10 0.17816676 0.048967198 -33.917975 47.841420 6539.8036 2.1377672e+10 0.17750861 0.050616392 -34.021431 47.723104 6542.0092 1.9802208e+10 0.17477165 0.051005714 -34.135177 47.589577 6544.2147 1.8081960e+10 0.17228199 0.051818509 -34.247666 47.457306 6546.4202 1.6247883e+10 0.17010570 0.052810304 -34.356465 47.328723 6548.6258 1.4918969e+10 0.16821530 0.053854519 -34.462107 47.203872 6550.8313 1.3808219e+10 0.16639701 0.055193508 -34.557306 47.091365 6553.0368 1.2783301e+10 0.16494503 0.055316554 -34.652506 46.978858 6555.2424 1.1926561e+10 0.16291194 0.054649722 -34.760236 46.851540 6557.4479 1.0925592e+10 0.16078443 0.053585364 -34.869038 46.722956 6559.6534 1.0113565e+10 0.15826271 0.052313427 -34.961716 46.608829 6561.8590 9.4112208e+09 0.15548485 0.050949402 -35.052587 46.496322 6564.0645 8.7869562e+09 0.15235957 0.048742366 -35.154006 46.374357 6566.2700 8.2064099e+09 0.15007071 0.047030127 -35.262808 46.245773 6568.4756 7.6389143e+09 0.14815747 0.045334502 -35.361456 46.126292 6570.6811 7.1877835e+09 0.14617301 0.044635373 -35.452328 46.013786 6572.8866 6.7725612e+09 0.14385236 0.043722402 -35.545251 45.895912 6575.0922 6.3486042e+09 0.14110957 0.042282231 -35.644162 45.762383 6577.2977 5.8950916e+09 0.13799293 0.039752750 -35.741197 45.633758 6579.5032 5.4663575e+09 0.13452650 0.036793845 -35.832068 45.521251 6581.7088 5.1299824e+09 0.13119066 0.035381983 -35.922939 45.408744 6583.9143 4.8108475e+09 0.12796236 0.034558885 -36.021225 45.281409 6586.1198 4.5145374e+09 0.12516377 0.033169747 -36.120135 45.152826 6588.3254 4.2415907e+09 0.12325571 0.033271270 -36.207913 45.038715 6590.5309 4.0087404e+09 0.12091940 0.030074490 -36.294458 44.926208 6592.7364 3.7816896e+09 0.11877331 0.027358213 -36.388289 44.804226 6594.9420 3.5453070e+09 0.11657145 0.025655422 -36.487197 44.675643 6597.1475 3.3178625e+09 0.11414889 0.025676177 -36.576638 44.553723 6599.3530 3.1243026e+09 0.11268674 0.024950964 -36.658856 44.436888 6601.5586 2.9676908e+09 0.11247704 0.027308750 -36.742183 44.321162 6603.7641 2.8317256e+09 0.11097605 0.026210919 -36.828726 44.208655 6605.9697 2.6934864e+09 0.11044489 0.027478503 -36.915269 44.096148 6608.1752 2.5385475e+09 0.10807400 0.023727740 -37.008829 43.968445 6610.3807 2.3805343e+09 0.10500964 0.024366747 -37.102795 43.839862 6612.5863 2.2388519e+09 0.10315720 0.023882726 -37.185912 43.726121 6614.7918 2.1239122e+09 0.10183504 0.023394982 -37.268129 43.613613 6616.9973 2.0222326e+09 0.10015146 0.023438829 -37.357540 43.491261 6619.2029 1.9195423e+09 0.099183258 0.024574860 -37.451505 43.362679 6621.4084 1.8116631e+09 0.097996420 0.024954084 -37.535987 43.241021 6623.6139 1.7232451e+09 0.095867547 0.024719275 -37.613888 43.124169 6625.8195 1.6395970e+09 0.094226794 0.026375465 -37.694898 43.004034 6628.0250 1.5461025e+09 0.092116186 0.025713242 -37.783917 42.875451 6630.2305 1.4515268e+09 0.090282949 0.025928870 -37.870068 42.751009 6632.4361 1.3654445e+09 0.088255458 0.026084633 -37.947958 42.638503 6634.6416 1.2963272e+09 0.086518079 0.026373644 -38.025848 42.525996 6636.8471 1.2293415e+09 0.084963540 0.026220777 -38.114274 42.398269 6639.0527 1.1609988e+09 0.084088692 0.025609251 -38.203293 42.269685 6641.2582 1.0978870e+09 0.085003224 0.025149177 -38.282022 42.151966 6643.4637 1.0409846e+09 0.084553292 0.025262636 -38.359912 42.035132 6645.6693 9.9083956e+08 0.083676840 0.025765211 -38.444633 41.911086 6647.8748 9.3761663e+08 0.082825749 0.026898367 -38.533652 41.782503 6650.0803 8.8752327e+08 0.082207747 0.026273628 -38.613526 41.663431 6652.2859 8.5203715e+08 0.081690386 0.027329175 -38.687089 41.550924 6654.4914 8.1405684e+08 0.080845228 0.027826883 -38.763603 41.433904 6656.6969 7.7945016e+08 0.078968974 0.028635117 -38.847675 41.305321 6658.9025 7.3953978e+08 0.077429952 0.031661633 -38.929029 41.180896 6661.1080 6.9766074e+08 0.076174875 0.032589960 -39.002593 41.068389 6663.3135 6.6504263e+08 0.074929234 0.032396323 -39.076156 40.955882 6665.5191 6.3661820e+08 0.074514542 0.027696606 -39.149719 40.839273 6667.7246 6.1504731e+08 0.073806757 0.027369620 -39.223281 40.722437 6669.9301 5.9202447e+08 0.073037807 0.027400379 -39.300387 40.598120 6672.1357 5.6372070e+08 0.072729293 0.026958241 -39.379515 40.469536 6674.3412 5.3258549e+08 0.071700278 0.029242627 -39.455222 40.350836 6676.5467 5.1059777e+08 0.069317727 0.032066099 -39.528786 40.238329 6678.7523 4.8888264e+08 0.068366850 0.030433456 -39.604040 40.120939 6680.9578 4.6848051e+08 0.069182835 0.029648249 -39.683167 39.992357 6683.1634 4.5111152e+08 0.069745155 0.031427973 -39.759508 39.868303 6685.3689 4.2832070e+08 0.069580364 0.033094470 -39.828744 39.755794 6687.5744 4.1066153e+08 0.067686949 0.034022541 -39.897980 39.643285 6689.7800 3.9392669e+08 0.065612762 0.033313941 -39.976819 39.515172 6691.9855 3.7477369e+08 0.064736505 0.032768753 -40.055946 39.386590 6694.1910 3.5200797e+08 0.064061747 0.030993300 -40.135074 39.253315 6696.3966 3.2902990e+08 0.064070795 0.029840546 -40.214202 39.119787 6698.6021 3.0939008e+08 0.063156481 0.031044255 -40.280151 39.005738 6700.8076 2.9993289e+08 0.061382159 0.031266756 -40.345059 38.893229 6703.0132 2.9190928e+08 0.060949774 0.033708162 -40.418722 38.770824 6705.2187 2.7824875e+08 0.061118137 0.037057398 -40.497850 38.642242 6707.4242 2.6158721e+08 0.060819890 0.040126056 -40.568536 38.523203 6709.6298 2.4918681e+08 0.059933096 0.040731984 -40.633445 38.410696 6711.8353 2.3685231e+08 0.057858953 0.041642570 -40.700977 38.293642 6714.0408 2.2709999e+08 0.055606070 0.047306478 -40.775160 38.165058 6716.2464 2.1968451e+08 0.053743517 0.048764232 -40.846925 38.040666 6718.4519 2.1043607e+08 0.051376703 0.050516212 -40.911832 37.928160 6720.6574 2.0602977e+08 0.050913918 0.050343591 -40.976739 37.815653 6722.8630 1.9873351e+08 0.050027826 0.049538352 -41.050456 37.687876 6725.0685 1.8854931e+08 0.045636757 0.041533231 -41.124640 37.559293 6727.2740 1.7745568e+08 0.044001679 0.040595292 -41.198821 37.430710 6729.4796 1.6493939e+08 0.043149980 0.040725782 -41.273002 37.302129 6731.6851 1.5821856e+08 0.041188495 0.043113508 -41.338786 37.188103 6733.8906 1.5464905e+08 0.039943805 0.048759843 -41.403695 37.075594 6736.0962 1.5230614e+08 0.041521395 0.050718592 -41.471178 36.953526 6738.3017 1.4777460e+08 0.042631574 0.058982126 -41.540415 36.824944 6740.5072 1.4062124e+08 0.041945345 0.064916896 -41.609651 36.696361 6742.7128 1.3704946e+08 0.038776694 0.070347563 -41.678888 36.567777 6744.9183 1.2919198e+08 0.034965522 0.078503701 -41.750848 36.436472 6747.1238 1.2001518e+08 0.030159933 0.067318526 -41.825031 36.302945 6749.3294 1.1243644e+08 0.029328207 0.072187749 -41.892029 36.180520 6751.5349 1.0473300e+08 0.025851042 0.073937835 -41.952619 36.067994 6753.7404 1.0062605e+08 0.023833934 0.075373510 -42.015091 35.951973 6755.9460 97884572. 0.021346037 0.074190593 -42.084316 35.823413 6758.1515 94707592. 0.020647545 0.074025722 -42.153544 35.694847 6760.3570 94518792. 0.021224365 0.076742148 -42.222780 35.566263 6762.5626 90490039. 0.025527470 0.077143351 -42.291159 35.437680 6764.7681 81285392. 0.027719403 0.079520084 -42.355450 35.309098 6766.9737 74310539. 0.027202779 0.081916167 -42.419181 35.183605 6769.1792 69657716. 0.021503934 0.084888867 -42.479771 35.075409 6771.3847 69292232. 0.016702144 0.090238258 -42.540361 34.967212 6773.5903 66512936. 0.010836342 0.095587648 -42.604064 34.841871 6775.7958 63668048. 0.0023936569 0.10093704 -42.668356 34.713287 6778.0013 60780443. -0.028604644 0.10628643 -42.736697 34.584705 6780.2069 57762824. -0.010348247 0.11163582 -42.805933 34.456123 6782.4124 55549877. 0.037145331 0.11698521 -42.871222 34.327557