# # 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 = 55.690432 km # Date (UTC) = 2013-12-08T10:03:41.872 # Date (julian) = 2456634.91923462 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6500.9096 5.7527383e+10 0.044687491 0.032557493 -31.270418 51.862759 6503.1231 5.1369146e+10 0.053202324 0.033224960 -31.386768 51.766469 6505.3365 4.6704839e+10 0.062147665 0.033892426 -31.498714 51.673824 6507.5500 4.3188268e+10 0.071609231 0.034559893 -31.610292 51.581178 6509.7635 4.0259019e+10 0.081559438 0.035227360 -31.718377 51.488533 6511.9770 3.7640565e+10 0.091965205 0.035894827 -31.826462 51.395888 6514.1904 3.5335475e+10 0.10287445 0.036562294 -31.934548 51.303243 6516.4039 3.3350595e+10 0.11434315 0.037229761 -32.042634 51.210599 6518.6174 3.1446545e+10 0.12623991 0.037897227 -32.150720 51.117955 6520.8308 2.9420887e+10 0.13838505 0.038564694 -32.271157 51.014722 6523.0443 2.7268375e+10 0.14784031 0.039190096 -32.392754 50.910494 6525.2578 2.5156700e+10 0.15433856 0.039752794 -32.503738 50.813342 6527.4713 2.3412602e+10 0.15977848 0.041058610 -32.607977 50.720686 6529.6847 2.2033500e+10 0.16463094 0.043326502 -32.712216 50.628030 6531.8982 2.0815733e+10 0.16893923 0.046536027 -32.816442 50.535385 6534.1117 1.9632782e+10 0.17125434 0.047975798 -32.920667 50.442739 6536.3252 1.8415172e+10 0.17217815 0.048081422 -33.030505 50.345106 6538.5386 1.7110025e+10 0.17357938 0.049418962 -33.147761 50.240880 6540.7521 1.5842975e+10 0.17335906 0.051209412 -33.262853 50.138137 6542.9656 1.4714475e+10 0.17191702 0.051368821 -33.363218 50.045491 6545.1790 1.3761472e+10 0.17028484 0.052457171 -33.463582 49.952846 6547.3925 1.2934890e+10 0.16818808 0.053436630 -33.563955 49.860194 6549.6060 1.2169199e+10 0.16626802 0.054583829 -33.664334 49.767536 6551.8195 1.1474572e+10 0.16464867 0.055523394 -33.764713 49.674879 6554.0329 1.0785294e+10 0.16235580 0.054833071 -33.872852 49.571262 6556.2464 1.0089822e+10 0.16042568 0.053976899 -33.981422 49.467036 6558.4599 9.4045871e+09 0.15855996 0.052847432 -34.084702 49.367787 6560.6734 8.7940220e+09 0.15609062 0.051667197 -34.185066 49.271282 6562.8868 8.2961585e+09 0.15389444 0.050036059 -34.285222 49.174986 6565.1003 7.8788669e+09 0.15180317 0.048204510 -34.381727 49.082341 6567.3138 7.4996255e+09 0.14987017 0.046351888 -34.478232 48.989695 6569.5272 7.1257800e+09 0.14820826 0.044886740 -34.578317 48.891681 6571.7407 6.7120522e+09 0.14680309 0.044300972 -34.682545 48.787455 6573.9542 6.2812989e+09 0.14464217 0.042891770 -34.785532 48.685091 6576.1677 5.8949909e+09 0.14266105 0.041178414 -34.882049 48.592433 6578.3811 5.5438604e+09 0.14027596 0.038047762 -34.978567 48.499775 6580.5946 5.2532566e+09 0.13771765 0.035971252 -35.072874 48.404922 6582.8081 4.9889468e+09 0.13550909 0.035073894 -35.165518 48.308417 6585.0216 4.7616544e+09 0.13309183 0.033953544 -35.258162 48.211912 6587.2350 4.5323831e+09 0.13049069 0.033210442 -35.347024 48.119192 6589.4485 4.3113415e+09 0.12793061 0.032156202 -35.435810 48.026548 6591.6620 4.0941868e+09 0.12517890 0.028454956 -35.530612 47.929390 6593.8754 3.8618707e+09 0.12295479 0.026288326 -35.634838 47.825162 6596.0889 3.6401880e+09 0.12057577 0.025726870 -35.737721 47.721942 6598.3024 3.4145927e+09 0.11915792 0.025262795 -35.826506 47.629298 6600.5159 3.2373881e+09 0.11897961 0.026050387 -35.915290 47.536654 6602.7293 3.0975908e+09 0.11834140 0.026894250 -36.009592 47.436096 6604.9428 2.9322371e+09 0.11775387 0.026631083 -36.109491 47.327510 6607.1563 2.7677138e+09 0.11673386 0.025398405 -36.207232 47.222018 6609.3698 2.6309016e+09 0.11384259 0.023815765 -36.296017 47.129373 6611.5832 2.5171802e+09 0.11124334 0.024586532 -36.384801 47.036727 6613.7967 2.4382575e+09 0.11013029 0.023865900 -36.471256 46.941753 6616.0102 2.3294423e+09 0.10854630 0.023283895 -36.556181 46.845248 6618.2236 2.2237122e+09 0.10790470 0.023939672 -36.641247 46.748640 6620.4371 2.1128750e+09 0.10711581 0.024908057 -36.736786 46.644414 6622.6506 2.0050511e+09 0.10565657 0.024584828 -36.832328 46.540186 6624.8641 1.9053397e+09 0.10401290 0.025324836 -36.920328 46.444187 6627.0775 1.8149173e+09 0.10174556 0.025346760 -37.005253 46.351544 6629.2910 1.7371703e+09 0.10035152 0.026056490 -37.091449 46.256992 6631.5045 1.6417088e+09 0.098417443 0.025982011 -37.186990 46.148422 6633.7180 1.5578019e+09 0.096678531 0.026277600 -37.282530 46.039852 6635.9314 1.4653964e+09 0.094876103 0.026539469 -37.366249 45.944285 6638.1449 1.3952765e+09 0.093509249 0.025665330 -37.447324 45.851628 6640.3584 1.3427570e+09 0.093273237 0.025226805 -37.528396 45.758097 6642.5718 1.2989569e+09 0.093021666 0.025175097 -37.609462 45.661591 6644.7853 1.2688860e+09 0.091964710 0.025428482 -37.690527 45.565086 6646.9988 1.2058361e+09 0.090954865 0.026437152 -37.778042 45.463667 6649.2123 1.1349611e+09 0.090035955 0.027341098 -37.869240 45.359441 6651.4257 1.0677047e+09 0.089851199 0.026810428 -37.957055 45.257792 6653.6392 1.0203879e+09 0.089326267 0.027852017 -38.038119 45.161287 6655.8527 9.9539800e+08 0.087472739 0.027962544 -38.119183 45.064783 6658.0662 9.6200669e+08 0.085843693 0.030178399 -38.204551 44.962538 6660.2796 9.1168949e+08 0.084358520 0.031880162 -38.291408 44.858311 6662.4931 8.5391035e+08 0.083017182 0.032767615 -38.378270 44.754076 6664.7066 8.0201337e+08 0.082158588 0.029620782 -38.465139 44.649834 6666.9200 7.5296408e+08 0.081902075 0.027087877 -38.550673 44.546662 6669.1335 7.2266090e+08 0.080543880 0.028218574 -38.627877 44.450157 6671.3470 6.9304864e+08 0.080447241 0.026870293 -38.705081 44.353652 6673.5605 6.6438543e+08 0.079669143 0.028297426 -38.787571 44.252917 6675.7739 6.4169761e+08 0.077320614 0.031280722 -38.874425 44.148690 6677.9874 6.1224567e+08 0.075950256 0.030954518 -38.958915 44.046354 6680.2009 5.9666204e+08 0.075850684 0.029484794 -39.036119 43.949850 6682.4144 5.8253118e+08 0.076207010 0.030741123 -39.113323 43.853345 6684.6278 5.6774935e+08 0.075880480 0.032685951 -39.194003 43.751786 6686.8413 5.4778111e+08 0.074178013 0.034250564 -39.276517 43.647560 6689.0548 5.1834408e+08 0.071212294 0.033966723 -39.359031 43.541805 6691.2682 4.9127705e+08 0.070317399 0.032937975 -39.441543 43.433235 6693.4817 4.6591757e+08 0.069499973 0.031438831 -39.523606 43.325448 6695.6952 4.4963049e+08 0.069202057 0.029731776 -39.596959 43.232790 6697.9087 4.3576400e+08 0.068468037 0.030206258 -39.670311 43.140133 6700.1221 4.2409583e+08 0.066821204 0.030758308 -39.747869 43.040172 6702.3356 4.0928391e+08 0.065446468 0.033144713 -39.830383 42.931603 6704.5491 3.9261531e+08 0.065796110 0.036447180 -39.912218 42.823711 6706.7626 3.7735940e+08 0.065565422 0.039773565 -39.990388 42.719484 6708.9760 3.6006120e+08 0.065022764 0.041106434 -40.068559 42.615256 6711.1895 3.4804594e+08 0.063213539 0.040907828 -40.142609 42.517620 6713.4030 3.3532387e+08 0.061080137 0.045144077 -40.215952 42.421115 6715.6164 3.2490441e+08 0.059115942 0.048009067 -40.290566 42.322579 6717.8299 3.1303436e+08 0.056979519 0.049822934 -40.368736 42.218353 6720.0434 3.0181687e+08 0.055707543 0.050414739 -40.446906 42.114127 6722.2569 2.9075025e+08 0.055544435 0.050287658 -40.525077 42.005729 6724.4703 2.7790618e+08 0.052416804 0.045999080 -40.603247 41.897159 6726.6838 2.6872493e+08 0.049483073 0.040957535 -40.681425 41.791435 6728.8973 2.5613125e+08 0.049044116 0.040899837 -40.759607 41.687192 6731.1108 2.4358917e+08 0.047209971 0.041970440 -40.836241 41.582955 6733.3242 2.3274691e+08 0.045964416 0.045684612 -40.910068 41.478728 6735.5377 2.2237681e+08 0.046716629 0.049864237 -40.984124 41.374272 6737.7512 2.1380190e+08 0.048203813 0.056528434 -41.062295 41.265702 6739.9646 2.0330121e+08 0.048263581 0.064007090 -41.140465 41.157133 6742.1781 1.9105026e+08 0.046007185 0.069044761 -41.215378 41.051820 6744.3916 1.8048299e+08 0.041733004 0.078096295 -41.289207 40.947592 6746.6051 1.7390281e+08 0.038557347 0.071952777 -41.363034 40.841422 6748.8185 1.7153401e+08 0.037120207 0.071323229 -41.436861 40.732852 6751.0320 1.6817289e+08 0.034270344 0.073725203 -41.510687 40.624911 6753.2455 1.6511071e+08 0.031541582 0.073771703 -41.584514 40.520685 6755.4590 1.5855106e+08 0.029542874 0.074404125 -41.658341 40.416459 6757.6724 1.5081394e+08 0.028138827 0.074699429 -41.732169 40.308575 6759.8859 1.4653822e+08 0.029029893 0.076033736 -41.805998 40.200005 6762.0994 1.4148656e+08 0.032918282 0.077890553 -41.877483 40.093777 6764.3128 1.3694666e+08 0.036060018 0.079498273 -41.946967 39.989549 6766.5263 1.3102243e+08 0.037113919 0.080904281 -42.017480 39.884294 6768.7398 1.2675611e+08 0.032954511 0.083517955 -42.091307 39.775724 6770.9533 1.2350896e+08 0.028845261 0.089191776 -42.165133 39.667154 6773.1667 1.2108462e+08 0.024909722 0.094560420 -42.234915 39.562626 6775.3802 1.1980312e+08 0.020958322 0.099929065 -42.304412 39.458383 6777.5937 1.1410977e+08 0.017079662 0.10529771 -42.380173 39.344742 6779.8072 1.1088771e+08 0.013169261 0.11066635 -42.459586 39.225624 6782.0206 1.0464254e+08 0.0093132632 0.11603500 -42.532873 39.113014 6784.2341 99260170. 0.0054567579 0.12140364 -42.602358 39.004443 6786.4476 95740157. 0.0015951929 0.12677229 -42.671843 38.897238 6788.6610 91272511. -0.0022208457 0.13214093 -42.741327 38.793010 6790.8745 89190503. -0.0060548053 0.13750958 -42.810812 38.688727 6793.0880 87317555. -0.0098812859 0.14287822 -42.880296 38.580162 6795.3015 86420387. -0.013726842 0.14824687 -42.949781 38.471593 6797.5149 82787741. -0.017510204 0.15361551 -43.022785 38.355544 6799.7284 79703448. -0.021297755 0.15898416 -43.097233 38.236426 6801.9419 74161525. -0.025005844 0.16435280 -43.165221 38.127645 6804.1554 70692045. -0.028747895 0.16972144 -43.230364 38.023417 6806.3688 68741160. -0.032517019 0.17509009 -43.301095 37.911415 6808.5823 66736860. -0.036263201 0.18045873 -43.380507 37.787332 6810.7958 65500985. -0.040003871 0.18582738 -43.454543 37.670731 6813.0092 61351467. -0.043570910 0.19119602 -43.519686 37.566505 6815.2227 58590838. -0.047081823 0.19656467 -43.585518 37.460808 6817.4362 53226694. -0.050153253 0.20193331 -43.659966 37.336725 6819.6497 51526160. -0.053189189 0.20730196 -43.733862 37.213821 6821.8631 48155223. -0.051448743 0.21267060 -43.799005 37.109593 6824.0766 45901032. -0.059758288 0.21803925 -43.864147 37.005365 6826.2901 46535838. -0.074002601 0.22340789 -43.932577 36.889871