# # 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 = 49.757416 km # Date (UTC) = 2011-12-03T09:29:48.642 # Date (julian) = 2455898.89570187 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6499.2662 1.9794424e+11 0.044547448 0.032061927 -25.016471 51.490168 6501.3655 1.5943143e+11 0.052039719 0.032694987 -25.131805 51.390532 6503.4649 1.3096056e+11 0.059467015 0.033328047 -25.247151 51.287543 6505.5643 1.1152729e+11 0.067062914 0.033961107 -25.362498 51.184555 6507.6637 1.0120761e+11 0.075382546 0.034594168 -25.474695 51.081578 6509.7630 9.0753260e+10 0.083970186 0.035227228 -25.585907 50.978604 6511.8624 7.8139743e+10 0.092385313 0.035860288 -25.692994 50.880672 6513.9618 6.9693779e+10 0.10156239 0.036493348 -25.791846 50.792802 6516.0612 6.1480096e+10 0.11093166 0.037126409 -25.890699 50.704933 6518.1605 5.6194575e+10 0.12142503 0.037759469 -25.996997 50.607964 6520.2599 5.3787086e+10 0.13338496 0.038392529 -26.108209 50.504991 6522.3593 5.0869847e+10 0.14469985 0.039011331 -26.218701 50.402017 6524.4586 4.6614083e+10 0.15128135 0.039589897 -26.325792 50.299044 6526.5580 4.1033609e+10 0.15620520 0.040253105 -26.432883 50.196071 6528.6574 3.5886030e+10 0.16056427 0.041963993 -26.539976 50.093098 6530.7568 3.2034033e+10 0.16458883 0.044888153 -26.647068 49.990124 6532.8561 2.9571098e+10 0.16933008 0.047399404 -26.749196 49.890801 6534.9555 2.8126963e+10 0.17230538 0.048211851 -26.840726 49.799271 6537.0549 2.7361625e+10 0.17347831 0.048711101 -26.932257 49.707741 6539.1543 2.6448192e+10 0.17328644 0.049830349 -27.030520 49.609477 6541.2536 2.4788861e+10 0.17189645 0.051244280 -27.133509 49.506488 6543.3530 2.3034001e+10 0.16987757 0.051474540 -27.236496 49.403502 6545.4524 2.1299864e+10 0.16801952 0.052459620 -27.339469 49.300529 6547.5517 1.9677654e+10 0.16643161 0.053497183 -27.442442 49.197555 6549.6511 1.8176454e+10 0.16482227 0.054629820 -27.545415 49.094582 6551.7505 1.7040706e+10 0.16335678 0.055499184 -27.648389 48.991609 6553.8499 1.5620148e+10 0.16142313 0.054907853 -27.746762 48.892121 6555.9492 1.4145930e+10 0.15964655 0.054055781 -27.834631 48.800590 6558.0486 1.2976031e+10 0.15839917 0.053197886 -27.922500 48.709060 6560.1480 1.2009966e+10 0.15648304 0.052140887 -28.016666 48.610970 6562.2474 1.1574091e+10 0.15411131 0.050644539 -28.115521 48.507997 6564.3467 1.1043591e+10 0.15167470 0.048614462 -28.214376 48.405024 6566.4461 1.0402275e+10 0.14987392 0.046930529 -28.313231 48.302050 6568.5455 9.7272547e+09 0.14844602 0.045270246 -28.412085 48.199077 6570.6448 9.0316345e+09 0.14729250 0.044650394 -28.500436 48.104307 6572.7442 8.3945392e+09 0.14584472 0.043803964 -28.584655 48.012765 6574.8436 7.8645192e+09 0.14389128 0.042449833 -28.668891 47.921204 6576.9430 7.5630953e+09 0.14133994 0.040286028 -28.763469 47.818402 6579.0423 7.1912974e+09 0.13820271 0.037047226 -28.858204 47.715428 6581.1417 6.6796780e+09 0.13575211 0.035553699 -28.952939 47.612455 6583.2411 6.1535697e+09 0.13377672 0.034899644 -29.047674 47.509482 6585.3404 5.6933423e+09 0.13176966 0.033698592 -29.141870 47.406509 6587.4398 5.3516358e+09 0.13012211 0.033255817 -29.232487 47.303535 6589.5392 5.0969259e+09 0.12840386 0.031976265 -29.323104 47.200562 6591.6386 4.8421425e+09 0.12630804 0.028481362 -29.409214 47.105635 6593.7379 4.5821202e+09 0.12441694 0.026416161 -29.493422 47.014105 6595.8373 4.4008878e+09 0.12192477 0.025710403 -29.577630 46.922575 6597.9367 4.2093840e+09 0.12016484 0.025427145 -29.668065 46.819923 6600.0361 3.9911964e+09 0.11957029 0.025064001 -29.758682 46.716950 6602.1354 3.8026894e+09 0.11904750 0.027401064 -29.847058 46.613977 6604.2348 3.5475373e+09 0.11794446 0.026210694 -29.933555 46.511004 6606.3342 3.3356803e+09 0.11757440 0.026903463 -30.020532 46.408030 6608.4335 3.1616127e+09 0.11511716 0.023720909 -30.111148 46.305057 6610.5329 3.0099606e+09 0.11215324 0.024512171 -30.201765 46.202083 6612.6323 2.8866994e+09 0.11041534 0.023848328 -30.282936 46.106979 6614.7317 2.7550848e+09 0.10912769 0.023436405 -30.359832 46.015437 6616.8310 2.6468629e+09 0.10740748 0.023412730 -30.436728 45.923895 6618.9304 2.5427364e+09 0.10633683 0.024473365 -30.522816 45.821408 6621.0298 2.4231992e+09 0.10522457 0.025079575 -30.609313 45.718435 6623.1292 2.2946288e+09 0.10345217 0.024539676 -30.695811 45.613280 6625.2285 2.1564724e+09 0.10184407 0.025670305 -30.782309 45.506189 6627.3279 2.0363540e+09 0.099481930 0.025443473 -30.868387 45.399516 6629.4273 1.9373455e+09 0.097973050 0.026031853 -30.950765 45.296543 6631.5266 1.8430724e+09 0.096083295 0.025984262 -31.033143 45.193570 6633.6260 1.7607874e+09 0.094710272 0.026261549 -31.111820 45.098309 6635.7254 1.6845079e+09 0.093425958 0.026508571 -31.188705 45.006779 6637.8248 1.6201726e+09 0.092459177 0.025757469 -31.265591 44.915249 6639.9241 1.5593239e+09 0.092293016 0.025297768 -31.347655 44.812932 6642.0235 1.4907701e+09 0.092493349 0.025152658 -31.430033 44.709958 6644.1229 1.4181183e+09 0.091551115 0.025356887 -31.512418 44.606976 6646.2223 1.3467753e+09 0.090641183 0.026035192 -31.594809 44.503988 6648.3216 1.2788003e+09 0.089669500 0.027179580 -31.676839 44.401001 6650.4210 1.2177183e+09 0.089051315 0.026351615 -31.755099 44.298028 6652.5204 1.1595617e+09 0.088546911 0.027393695 -31.833359 44.195054 6654.6197 1.1062502e+09 0.087513805 0.027772210 -31.914336 44.089365 6656.7191 1.0568178e+09 0.085560655 0.028654579 -31.996715 43.982274 6658.8185 1.0089424e+09 0.083928572 0.031512681 -32.078139 43.876137 6660.9179 9.6102658e+08 0.082513412 0.032460287 -32.156398 43.773164 6663.0172 9.1451829e+08 0.081243205 0.032478437 -32.234657 43.670190 6665.1166 8.7364789e+08 0.080475790 0.028356071 -32.305924 43.576416 6667.2160 8.4504936e+08 0.079728059 0.027182789 -32.375487 43.484886 6669.3153 8.1475568e+08 0.078408403 0.028031818 -32.445382 43.392524 6671.4147 7.8192008e+08 0.078166306 0.026871258 -32.519523 43.289551 6673.5141 7.4986982e+08 0.077330461 0.028228082 -32.593664 43.186578 6675.6135 7.1397482e+08 0.075191721 0.030973370 -32.670461 43.083605 6677.7128 6.8719584e+08 0.073626662 0.031344843 -32.748722 42.980632 6679.8122 6.5870459e+08 0.073574872 0.029596596 -32.826088 42.877658 6681.9116 6.3110598e+08 0.074387826 0.030356711 -32.900229 42.774685 6684.0110 6.0798362e+08 0.074668814 0.032654648 -32.974370 42.671712 6686.1103 5.8150051e+08 0.074146474 0.033825275 -33.048519 42.565475 6688.2097 5.5766774e+08 0.071743801 0.033833597 -33.122669 42.458365 6690.3091 5.3309802e+08 0.070148967 0.033080444 -33.196817 42.352752 6692.4084 5.1007718e+08 0.069262614 0.032291025 -33.270957 42.249779 6694.5078 4.9224890e+08 0.068522129 0.030549292 -33.345098 42.146805 6696.6072 4.7267787e+08 0.068233497 0.029928061 -33.419239 42.043832 6698.7066 4.5710008e+08 0.067116221 0.031187657 -33.493380 41.940859 6700.8059 4.4025415e+08 0.065384409 0.031265504 -33.567521 41.837886 6702.9053 4.2297305e+08 0.064904242 0.033599623 -33.641661 41.734913 6705.0047 4.0746631e+08 0.065063112 0.036676928 -33.715480 41.631940 6707.1041 3.8525852e+08 0.064738267 0.040171921 -33.785502 41.528967 6709.2034 3.6810904e+08 0.064086455 0.041003154 -33.855525 41.425993 6711.3028 3.5201398e+08 0.062305723 0.041036734 -33.925547 41.323020 6713.4022 3.3839666e+08 0.060269371 0.045141190 -33.995568 41.220046 6715.5015 3.2829234e+08 0.058366858 0.047891553 -34.065590 41.116156 6717.6009 3.1439826e+08 0.056315431 0.049837099 -34.135612 41.009064 6719.7003 3.0349066e+08 0.054705533 0.050704514 -34.205635 40.901973 6721.7997 2.9379747e+08 0.054799391 0.050544841 -34.275656 40.798155 6723.8990 2.8213231e+08 0.052910159 0.049870350 -34.345677 40.695182 6725.9984 2.7152583e+08 0.049042653 0.040952363 -34.419371 40.586809 6728.0978 2.5891294e+08 0.048418900 0.039766684 -34.499398 40.469122 6730.1972 2.4571095e+08 0.047128653 0.040649220 -34.576997 40.355007 6732.2965 2.3624952e+08 0.045634548 0.043794798 -34.647018 40.252034 6734.3959 2.2459780e+08 0.045073747 0.049329780 -34.717040 40.149060 6736.4953 2.1667535e+08 0.046720367 0.052227398 -34.783713 40.046074 6738.5946 2.0983201e+08 0.047597043 0.060594863 -34.849625 39.943085 6740.6940 2.0192577e+08 0.046731602 0.065235965 -34.915534 39.840103 6742.7934 1.9442675e+08 0.043494622 0.070543986 -34.981437 39.737130 6744.8928 1.8596688e+08 0.039862381 0.078483938 -35.047340 39.634157 6746.9921 1.7654525e+08 0.035067238 0.067452648 -35.113242 39.531183 6749.0915 1.6931045e+08 0.034837955 0.072252880 -35.179145 39.428210 6751.1909 1.6328612e+08 0.031588103 0.073792374 -35.250056 39.317412 6753.2902 1.5681947e+08 0.028945647 0.073916586 -35.325375 39.199726 6755.3896 1.5157625e+08 0.026747315 0.074434522 -35.396857 39.086357 6757.4890 1.4295281e+08 0.024768239 0.075256092 -35.462760 38.979263 6759.5884 1.3446724e+08 0.025371105 0.075961937 -35.528663 38.872170 6761.6877 1.2981761e+08 0.027723028 0.078025045 -35.594566 38.769113 6763.7871 1.2324540e+08 0.031198364 0.078834927 -35.660468 38.666140 6765.8865 1.1754794e+08 0.032779005 0.079693024 -35.728970 38.555047 6767.9859 1.1291098e+08 0.029841209 0.080871863 -35.799583 38.437360 6770.0852 1.0752014e+08 0.025069810 0.087086417 -35.866420 38.325966 6772.1846 1.0648785e+08 0.021145690 0.092178318 -35.928205 38.222993 6774.2840 1.0193390e+08 0.017151541 0.097270219 -35.990054 38.119950 6776.3833 97006905. 0.013148149 0.10236212 -36.065306 38.002336 6778.4827 93004992. 0.0091647653 0.10745402 -36.140625 37.884650 6780.5821 87110981. 0.0050692278 0.11254592 -36.204093 37.779845 6782.6815 85425017. 0.0011510797 0.11763782 -36.265876 37.676871 6784.7808 82105329. -0.0028913020 0.12272973 -36.325816 37.573898 6786.8802 79223035. -0.0069709620 0.12782163 -36.383481 37.470925 6788.9796 77408732. -0.011071458 0.13291353 -36.441403 37.367659 6791.0790 70590267. -0.015775585 0.13800543 -36.512015 37.249973 6793.1783 69062594. -0.020310246 0.14309733 -36.582627 37.132287 6795.2777 66912974. -0.025416011 0.14818923 -36.653240 37.014600 6797.3771 64300259. -0.031621112 0.15328113 -36.723852 36.896914 6799.4764 64343508. -0.040298400 0.15837303 -36.784478 36.790576 6801.5758 61501868. -0.076287848 0.16346494 -36.842143 36.687603 6803.6752 59929741. -0.052803388 0.16855684 -36.904254 36.579576 6805.7746 56332197. 0.0031811761 0.17364874 -36.974865 36.461889