# # 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 = 48.366520 km # Date (UTC) = 2013-12-11T09:09:18.490 # Date (julian) = 2456637.88146401 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6508.3966 4.1487119e+10 0.077771446 0.034815168 -18.419781 50.562418 6510.3802 3.9075369e+10 0.086675859 0.035413320 -18.513183 50.479394 6512.3638 3.6913868e+10 0.095847105 0.036011473 -18.606585 50.396369 6514.3474 3.5008999e+10 0.10534335 0.036609625 -18.699987 50.313345 6516.3310 3.3185732e+10 0.11512168 0.037207777 -18.793389 50.230320 6518.3146 3.1345900e+10 0.12514003 0.037805929 -18.886791 50.147296 6520.2982 2.9623725e+10 0.13543627 0.038404081 -18.980198 50.064267 6522.2818 2.8014125e+10 0.14522938 0.038991049 -19.073612 49.981233 6524.2654 2.6534427e+10 0.15052365 0.039521256 -19.167025 49.898199 6526.2490 2.5015554e+10 0.15459579 0.039929178 -19.264637 49.809566 6528.2327 2.3391699e+10 0.15909571 0.041627046 -19.365824 49.716162 6530.2163 2.1752401e+10 0.16281356 0.044131458 -19.467011 49.622757 6532.1999 2.0228382e+10 0.16573680 0.046851162 -19.557286 49.539428 6534.1835 1.8912974e+10 0.16698848 0.047995884 -19.647228 49.456405 6536.1671 1.7761466e+10 0.16717520 0.047940001 -19.737170 49.373382 6538.1507 1.6661664e+10 0.16895176 0.049230063 -19.827113 49.290357 6540.1343 1.5639284e+10 0.16989635 0.050917553 -19.917056 49.207333 6542.1179 1.4676441e+10 0.16896570 0.051047006 -20.006347 49.124306 6544.1015 1.3790855e+10 0.16791305 0.051726709 -20.092841 49.041272 6546.0851 1.2971061e+10 0.16651359 0.052534581 -20.179336 48.958238 6548.0687 1.2199936e+10 0.16573898 0.053688176 -20.265827 48.874174 6550.0524 1.1477383e+10 0.16465652 0.054998469 -20.352310 48.787691 6552.0360 1.0799205e+10 0.16320727 0.055577714 -20.438794 48.701208 6554.0196 1.0130648e+10 0.16112488 0.054832791 -20.529687 48.611901 6556.0032 9.4477704e+09 0.15945325 0.054012657 -20.626982 48.518498 6557.9868 8.7694555e+09 0.15833802 0.053247581 -20.724277 48.425094 6559.9704 8.1156841e+09 0.15667165 0.052277649 -20.809607 48.340392 6561.9540 7.5417462e+09 0.15458645 0.050902563 -20.892631 48.257367 6563.9376 7.0484629e+09 0.15229631 0.048843751 -20.975655 48.174343 6565.9212 6.6362282e+09 0.15078889 0.047272323 -21.058679 48.091320 6567.9048 6.2837934e+09 0.14991444 0.045852119 -21.141702 48.008297 6569.8885 5.9718926e+09 0.14890741 0.044910249 -21.224726 47.925076 6571.8721 5.6862087e+09 0.14760521 0.044265098 -21.307761 47.838582 6573.8557 5.4170736e+09 0.14565950 0.042970824 -21.390796 47.752087 6575.8393 5.1567659e+09 0.14391752 0.041532644 -21.473829 47.666171 6577.8229 4.9095985e+09 0.14196117 0.038927808 -21.556853 47.583146 6579.8065 4.6828417e+09 0.13963343 0.036627127 -21.639878 47.500122 6581.7901 4.4511458e+09 0.13734231 0.035357352 -21.724692 47.414234 6583.7737 4.2137511e+09 0.13512430 0.034630043 -21.814203 47.320832 6585.7573 3.9654904e+09 0.13292912 0.033365304 -21.903714 47.227430 6587.7409 3.7306286e+09 0.13116959 0.033322533 -21.986200 47.138914 6589.7246 3.5299229e+09 0.12909723 0.031608535 -22.065764 47.052431 6591.7082 3.3617341e+09 0.12681715 0.028402834 -22.145329 46.965948 6593.6918 3.2109854e+09 0.12497339 0.026459085 -22.224901 46.882277 6595.6754 3.0749710e+09 0.12278491 0.025693610 -22.304476 46.799241 6597.6590 2.9504943e+09 0.12104450 0.025514775 -22.384051 46.716206 6599.6426 2.8316035e+09 0.12009149 0.024968379 -22.460416 46.633182 6601.6262 2.7236732e+09 0.11982553 0.027340598 -22.536522 46.550159 6603.6098 2.6086256e+09 0.11862319 0.026302263 -22.612956 46.466643 6605.5934 2.4850535e+09 0.11827161 0.027162882 -22.698575 46.369348 6607.5770 2.3505481e+09 0.11672178 0.024567564 -22.784195 46.272053 6609.5606 2.2188786e+09 0.11406242 0.023872470 -22.865390 46.181394 6611.5443 2.1126177e+09 0.11156233 0.024611381 -22.941495 46.098369 6613.5279 2.0185889e+09 0.11057652 0.023767266 -23.017600 46.015345 6615.5115 1.9416842e+09 0.10905605 0.023267268 -23.093705 45.932321 6617.4951 1.8718974e+09 0.10781967 0.023603393 -23.169811 45.849298 6619.4787 1.8007231e+09 0.10682393 0.024641416 -23.245916 45.766275 6621.4623 1.7265740e+09 0.10553511 0.024936214 -23.328534 45.673487 6623.4459 1.6353044e+09 0.10372537 0.024657030 -23.414166 45.576177 6625.4295 1.5468009e+09 0.10230150 0.025910156 -23.498312 45.480501 6627.4131 1.4659573e+09 0.10010663 0.025476398 -23.570959 45.397477 6629.3967 1.3984169e+09 0.098551038 0.026037372 -23.643605 45.314453 6631.3804 1.3396119e+09 0.096461179 0.025969402 -23.716251 45.230655 6633.3640 1.2851837e+09 0.094893763 0.026215797 -23.788896 45.144172 6635.3476 1.2413982e+09 0.093371507 0.026451911 -23.861541 45.057689 6637.3312 1.1964838e+09 0.092130781 0.025999209 -23.935915 44.968901 6639.3148 1.1399977e+09 0.091530275 0.025515561 -24.013752 44.875497 6641.2984 1.0784137e+09 0.092201459 0.025149314 -24.091589 44.782092 6643.2820 1.0183226e+09 0.091814497 0.025235199 -24.165462 44.693972 6645.2656 9.6839128e+08 0.090983028 0.025576118 -24.238108 44.607489 6647.2492 9.2908517e+08 0.089897107 0.026569001 -24.310753 44.521006 6649.2328 8.9327364e+08 0.088778906 0.027312729 -24.380388 44.437533 6651.2164 8.6209145e+08 0.088298047 0.026650043 -24.449584 44.354499 6653.2001 8.3310087e+08 0.087756584 0.027627805 -24.518789 44.271455 6655.1837 8.0079071e+08 0.086384509 0.027686109 -24.596463 44.178244 6657.1673 7.6265487e+08 0.084575726 0.029095149 -24.674299 44.084840 6659.1509 7.2408876e+08 0.083060238 0.031803123 -24.748564 43.994293 6661.1345 6.9233127e+08 0.081695831 0.032603452 -24.817751 43.907810 6663.1181 6.6773934e+08 0.080390768 0.032450482 -24.886938 43.821326 6665.1017 6.4266595e+08 0.079659736 0.028380463 -24.960641 43.731230 6667.0853 6.1770684e+08 0.079020133 0.027134800 -25.038477 43.637828 6669.0689 5.9091576e+08 0.077647088 0.028284900 -25.116314 43.544426 6671.0525 5.6365470e+08 0.077582138 0.026866097 -25.182614 43.457615 6673.0362 5.4077893e+08 0.076990181 0.027513291 -25.248341 43.371132 6675.0198 5.2025742e+08 0.075301176 0.029836215 -25.314576 43.284219 6677.0034 5.0113417e+08 0.073065990 0.032353420 -25.388532 43.190802 6678.9870 4.8293827e+08 0.072410667 0.030276476 -25.462487 43.097384 6680.9706 4.6226012e+08 0.073507808 0.029651008 -25.532388 43.007383 6682.9542 4.4352507e+08 0.074192126 0.031153591 -25.598116 42.920900 6684.9378 4.2705637e+08 0.074126253 0.032701682 -25.663843 42.834417 6686.9214 4.1192862e+08 0.072675672 0.034297183 -25.734517 42.743768 6688.9050 3.9504786e+08 0.070130844 0.033994103 -25.808461 42.650365 6690.8886 3.7903828e+08 0.069309773 0.033014024 -25.882405 42.556835 6692.8723 3.6491177e+08 0.068584426 0.031752434 -25.956350 42.459540 6694.8559 3.4909410e+08 0.068044475 0.030061491 -26.030294 42.362245 6696.8395 3.3177763e+08 0.067697938 0.030024569 -26.098832 42.271558 6698.8231 3.1719338e+08 0.066629312 0.031347591 -26.161100 42.188534 6700.8067 3.0396332e+08 0.065024837 0.031266064 -26.223368 42.105510 6702.7903 2.9501780e+08 0.064462917 0.033507789 -26.292318 42.014318 6704.7739 2.8412510e+08 0.064634349 0.036557584 -26.366262 41.917023 6706.7575 2.7201157e+08 0.064350654 0.039764809 -26.440143 41.819807 6708.7411 2.6311126e+08 0.063818186 0.040850642 -26.502451 41.736733 6710.7247 2.5181870e+08 0.062357293 0.040638354 -26.564727 41.653699 6712.7083 2.4385511e+08 0.060401292 0.043145126 -26.627441 41.569498 6714.6920 2.3376652e+08 0.058443211 0.047355430 -26.693601 41.476095 6716.6756 2.2535544e+08 0.056552751 0.049396410 -26.759762 41.382691 6718.6592 2.1745095e+08 0.054326149 0.050839034 -26.828035 41.287174 6720.6428 2.0738743e+08 0.054221460 0.050345288 -26.898087 41.189879 6722.6264 1.9862295e+08 0.053608806 0.049830814 -26.968139 41.092584 6724.6100 1.8871174e+08 0.050371569 0.044832712 -27.038191 40.999077 6726.5936 1.8211076e+08 0.047926228 0.040956721 -27.108244 40.905673 6728.5772 1.7480724e+08 0.047482993 0.040446218 -27.173755 40.815065 6730.5608 1.6595003e+08 0.045934711 0.041147877 -27.232563 40.728582 6732.5444 1.6067429e+08 0.044507925 0.043840440 -27.291372 40.642099 6734.5281 1.5472038e+08 0.043947829 0.049321828 -27.353953 40.552064 6736.5117 1.5033923e+08 0.045363823 0.052289385 -27.420114 40.458661 6738.4953 1.4530451e+08 0.046087897 0.060047805 -27.486276 40.365258 6740.4789 1.3782927e+08 0.045275754 0.064868453 -27.552436 40.268182 6742.4625 1.3358939e+08 0.042404840 0.069737704 -27.618597 40.170887 6744.4461 1.3220610e+08 0.038235968 0.078138462 -27.684761 40.075043 6746.4297 1.2608964e+08 0.035461048 0.073991383 -27.750932 39.981625 6748.4133 1.1900875e+08 0.032918649 0.069191405 -27.817102 39.888207 6750.3969 1.1208082e+08 0.029866560 0.072681910 -27.883265 39.794802 6752.3805 1.0651282e+08 0.026818582 0.073694118 -27.949426 39.701400 6754.3642 1.0466085e+08 0.025310292 0.075627870 -28.014669 39.607080 6756.3478 1.0054881e+08 0.022568053 0.075061750 -28.076939 39.509784 6758.3314 95103929. 0.022144721 0.074406051 -28.139208 39.412489 6760.3150 91910580. 0.022305530 0.076661925 -28.204069 39.317785 6762.2986 90616931. 0.026102012 0.077569194 -28.270230 39.224382 6764.2822 90570687. 0.028596141 0.079496805 -28.336014 39.130602 6766.2658 84288541. 0.029250552 0.080315013 -28.398283 39.033307 6768.2494 79811982. 0.025552162 0.081753495 -28.460552 38.936012 6770.2330 73314703. 0.020677115 0.087444898 -28.522821 38.840768 6772.2166 69479994. 0.016330900 0.092256024 -28.585089 38.747366 6774.2002 66971800. 0.011833308 0.097067149 -28.647358 38.653964 6776.1839 63384196. 0.0066498101 0.10187827 -28.709627 38.560560 6778.1675 63854708. 0.0011251438 0.10668940 -28.771896 38.467156 6780.1511 61527333. -0.0079569110 0.11150053 -28.835891 38.366847 6782.1347 60157084. -0.043468904 0.11631165 -28.902610 38.255649 6784.1183 55612698. -0.021502361 0.12112278 -28.968706 38.146940 6786.1019 52817609. 0.038056586 0.12593390 -29.030975 38.053536