# # 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 = 78.150985 km # Date (UTC) = 2013-12-01T09:53:30.144 # Date (julian) = 2456627.91215444 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6506.6647 5.6754990e+10 0.074248847 0.034292919 107.08412 28.607048 6509.4958 5.0953803e+10 0.086481526 0.035146653 107.15078 28.451516 6512.3270 4.5300850e+10 0.098881324 0.036000388 107.21972 28.298270 6515.1582 4.0159032e+10 0.11152219 0.036854122 107.29193 28.148293 6517.9894 3.5910016e+10 0.12458514 0.037707857 107.35924 28.005485 6520.8206 3.2404312e+10 0.13813278 0.038561591 107.42342 27.867236 6523.6517 2.9255211e+10 0.14729645 0.039340642 107.48906 27.718860 6526.4829 2.6326300e+10 0.15263931 0.040174361 107.55572 27.563328 6529.3141 2.3722096e+10 0.15688257 0.042736100 107.62043 27.421376 6532.1453 2.1539943e+10 0.16074492 0.046805547 107.68462 27.283127 6534.9764 1.9653035e+10 0.16233057 0.048217708 107.75068 27.131736 6537.8076 1.7824676e+10 0.16255735 0.049065985 107.81734 26.976204 6540.6388 1.5999902e+10 0.16274399 0.051155890 107.88401 26.820649 6543.4700 1.4382224e+10 0.16219129 0.051505243 107.94949 26.668656 6546.3012 1.3062021e+10 0.16195975 0.052712335 108.00874 26.535345 6549.1323 1.1924420e+10 0.16211966 0.054101148 108.06898 26.399039 6551.9635 1.0895205e+10 0.16247321 0.055573962 108.13564 26.243506 6554.7947 9.9432609e+09 0.16112762 0.054849057 108.19982 26.093755 6557.6259 9.0927174e+09 0.15870794 0.053473804 108.25907 25.955507 6560.4571 8.3415889e+09 0.15526023 0.051862211 108.32061 25.813633 6563.2882 7.6559662e+09 0.15179054 0.049594942 108.38726 25.663655 6566.1194 7.0407121e+09 0.14891768 0.047115330 108.45015 25.519636 6568.9506 6.5275017e+09 0.14709575 0.044897838 108.50941 25.381369 6571.7818 6.0872090e+09 0.14591214 0.044289757 108.56956 25.234749 6574.6130 5.6699807e+09 0.14385824 0.042560605 108.63067 25.079218 6577.4441 5.2722265e+09 0.14164316 0.039522745 108.69050 24.938875 6580.2753 4.9220443e+09 0.13914536 0.036266324 108.74975 24.805563 6583.1065 4.6120584e+09 0.13708312 0.034967765 108.81022 24.657626 6585.9377 4.3222315e+09 0.13481132 0.033221126 108.87132 24.502093 6588.7689 4.0239226e+09 0.13321615 0.033123171 108.93719 24.351326 6591.6000 3.7515984e+09 0.13070237 0.028524846 109.00313 24.202025 6594.4312 3.5274422e+09 0.12804789 0.025935811 109.05745 24.063777 6597.2624 3.3277420e+09 0.12502853 0.025639928 109.11216 23.925149 6600.0936 3.1387996e+09 0.12379755 0.025182232 109.17883 23.775149 6602.9247 2.9512081e+09 0.12273466 0.026727492 109.24262 23.629026 6605.7559 2.7888154e+09 0.12148484 0.027299204 109.29693 23.495715 6608.5871 2.6456620e+09 0.11801095 0.023716848 109.35264 23.357804 6611.4183 2.5022677e+09 0.11388032 0.024691715 109.41375 23.202272 6614.2495 2.3579756e+09 0.11196682 0.023768622 109.47209 23.055778 6617.0806 2.2253342e+09 0.10955567 0.023465986 109.52640 22.922467 6619.9118 2.1156529e+09 0.10810134 0.024745922 109.58330 22.782799 6622.7430 2.0110579e+09 0.10602935 0.024560231 109.64440 22.632821 6625.5742 1.8929889e+09 0.10431682 0.026082772 109.70551 22.479616 6628.4054 1.7685970e+09 0.10275357 0.025867675 109.76661 22.324084 6631.2365 1.6666581e+09 0.10116903 0.025954793 109.81856 22.185890 6634.0677 1.5795250e+09 0.099705075 0.026331782 109.86794 22.052561 6636.8989 1.4986387e+09 0.098275963 0.026200675 109.92618 21.906649 6639.7301 1.4210287e+09 0.097920026 0.025367129 109.98728 21.756672 6642.5613 1.3480646e+09 0.098225293 0.025174664 110.04189 21.622618 6645.3924 1.2896514e+09 0.097000623 0.025635525 110.09621 21.489307 6648.2236 1.2328365e+09 0.095592791 0.027113971 110.15683 21.340492 6651.0548 1.1681331e+09 0.094768011 0.026526155 110.21722 21.190515 6653.8860 1.0990560e+09 0.094091870 0.027978006 110.27276 21.040539 6656.7171 1.0404463e+09 0.091796885 0.028652856 110.32790 20.896056 6659.5483 9.9034874e+08 0.089790698 0.031720216 110.38221 20.762744 6662.3795 9.4835937e+08 0.087807129 0.032831345 110.43690 20.624355 6665.2107 9.0547758e+08 0.086679233 0.028201912 110.49246 20.474354 6668.0419 8.5844025e+08 0.085670778 0.027507824 110.54801 20.324364 6670.8730 8.1618139e+08 0.084779123 0.026924164 110.60356 20.174387 6673.7042 7.6955210e+08 0.083784684 0.028512437 110.66302 20.024410 6676.5354 7.2809423e+08 0.080743228 0.032058789 110.72412 19.874434 6679.3666 6.9247151e+08 0.079618199 0.029964844 110.77463 19.739519 6682.1978 6.6211693e+08 0.080354675 0.030575640 110.82400 19.606207 6685.0289 6.3854220e+08 0.080091233 0.032735407 110.87880 19.458255 6687.8601 6.1009324e+08 0.077474594 0.033863203 110.93434 19.308277 6690.6913 5.8037527e+08 0.075224815 0.033036640 110.98989 19.158299 6693.5225 5.4481950e+08 0.074222592 0.031424846 111.04543 19.008322 6696.3537 5.1424355e+08 0.073925002 0.029822723 111.10098 18.858346 6699.1848 4.9413174e+08 0.072428303 0.031419881 111.15358 18.716320 6702.0160 4.7418518e+08 0.070298298 0.032889519 111.20297 18.582991 6704.8472 4.5806478e+08 0.070769125 0.036593571 111.25514 18.444642 6707.6784 4.4067034e+08 0.070358772 0.040089650 111.31069 18.300219 6710.5096 4.1850493e+08 0.068813246 0.040596234 111.36623 18.152173 6713.3407 4.0293521e+08 0.066044242 0.044918980 111.42178 18.002194 6716.1719 3.8407718e+08 0.063523332 0.048654569 111.47733 17.852216 6719.0031 3.6450978e+08 0.060450622 0.051366902 111.53287 17.702239 6721.8343 3.4860159e+08 0.060748400 0.050555269 111.58842 17.552262 6724.6654 3.2946083e+08 0.056846248 0.044369737 111.64257 17.403682 6727.4966 3.1354759e+08 0.054298916 0.040298735 111.69256 17.259260 6730.3278 3.0171041e+08 0.052724613 0.040828366 111.74506 17.112330 6733.1590 2.8874232e+08 0.050910047 0.044787489 111.80061 16.962352 6735.9902 2.7873973e+08 0.051819856 0.050344566 111.85616 16.815990 6738.8213 2.6687435e+08 0.053000995 0.061842971 111.91170 16.671567 6741.6525 2.5355709e+08 0.050983046 0.067619727 111.96253 16.522400 6744.4837 2.4578371e+08 0.045472170 0.078167544 112.01282 16.372683 6747.3149 2.3525452e+08 0.040510671 0.067252759 112.06836 16.228261 6750.1461 2.2669023e+08 0.037990196 0.072253537 112.12252 16.082448 6752.9772 2.1804150e+08 0.035090817 0.073003627 112.17251 15.932471 6755.8084 2.1187157e+08 0.032338281 0.074250905 112.22500 15.784993 6758.6396 2.0453262e+08 0.031733566 0.075057838 112.28055 15.640569 6761.4708 1.9527412e+08 0.033860565 0.078007120 112.33249 15.492536 6764.3020 1.8419052e+08 0.039003780 0.079497751 112.38248 15.342559 6767.1331 1.7301303e+08 0.039376700 0.081826688 112.43854 15.179770 6769.9643 1.6760123e+08 0.033302778 0.086793148 112.49524 15.020374 6772.7955 1.6053746e+08 0.028151734 0.093660003 112.55079 14.875951 6775.6267 1.5566750e+08 0.022965679 0.10052686 112.60370 14.728895 6778.4579 1.5050286e+08 0.017782292 0.10739371 112.65369 14.578917 6781.2890 1.4785270e+08 0.012561673 0.11426056 112.70369 14.432683 6784.1202 1.4624680e+08 0.0073320837 0.12112742 112.75368 14.288260 6786.9514 1.4044499e+08 0.0021506273 0.12799427 112.80991 14.125810 6789.7826 1.3536911e+08 -0.0030410744 0.13486113 112.86492 13.966909 6792.6137 1.2929531e+08 -0.0082275226 0.14172798 112.91491 13.822486 6795.4449 1.2648786e+08 -0.013437285 0.14859484 112.96491 13.678053 6798.2761 1.2442542e+08 -0.018644601 0.15546169 113.01490 13.533609 6801.1073 1.1958774e+08 -0.023841019 0.16232854 113.06989 13.370342 6803.9385 1.1479405e+08 -0.029041585 0.16919540 113.12615 13.202252 6806.7696 1.0967736e+08 -0.034239916 0.17606225 113.17614 13.057829 6809.6008 1.0497050e+08 -0.039411784 0.18292911 113.22843 12.906748 6812.4320 1.0397126e+08 -0.044523867 0.18979596 113.28557 12.741690 6815.2632 1.0187425e+08 -0.049601527 0.19666281 113.33737 12.592055 6818.0944 1.0161130e+08 -0.054640308 0.20352967 113.38736 12.447632 6820.9255 98093566. -0.059709558 0.21039652 113.44412 12.283665 6823.7567 94085565. -0.064790092 0.21726338 113.49860 12.126283 6826.5879 91055322. -0.069854978 0.22413023 113.54859 11.981860 6829.4191 86043104. -0.074961094 0.23099709 113.60266 11.825640 6832.2503 86275712. -0.079956366 0.23786394 113.65980 11.660581 6835.0814 85676012. -0.084964410 0.24473079 113.71694 11.495523 6837.9126 85474495. -0.089953474 0.25159765 113.77140 11.330465 6840.7438 82461043. -0.095010431 0.25846450 113.82218 11.165408 6843.5750 78883918. -0.10009073 0.26533136 113.87230 11.022508 6846.4062 78081305. -0.10508383 0.27219821 113.92261 10.882441 6849.2373 79219248. -0.11000557 0.27906506 113.97975 10.717383 6852.0685 79386856. -0.11495443 0.28593192 114.03689 10.552324 6854.8997 76331740. -0.12001620 0.29279877 114.09402 10.387265 6857.7309 73804424. -0.12506542 0.29966563 114.14547 10.222207 6860.5620 71069869. -0.13013065 0.30653248 114.19829 10.057149 6863.3932 68377299. -0.13520446 0.31339933 114.25543 9.8920916 6866.2244 66068272. -0.14027144 0.32026619 114.30783 9.7317633 6869.0556 63476063. -0.14536960 0.32713304 114.35970 9.5719758 6871.8868 62091961. -0.15039935 0.33399990 114.41684 9.4069178 6874.7179 62623246. -0.15530072 0.34086675 114.47020 9.2418590 6877.5491 62217378. -0.16025969 0.34773361 114.52110 9.0769229 6880.3803 58943521. -0.16543223 0.35460046 114.57824 8.9182134 6883.2115 56977072. -0.17054878 0.36146731 114.63632 8.7444792 6886.0427 53941043. -0.17580714 0.36833417 114.69536 8.5551163 6888.8738 52402557. -0.18098176 0.37520102 114.75249 8.3964057 6891.7050 49849178. -0.18633396 0.38206788 114.80634 8.2344043 6894.5362 46679010. -0.19188486 0.38893473 114.85712 8.0693480 6897.3674 45793888. -0.19724007 0.39580158 114.91590 7.8853187 6900.1986 45100077. -0.20268973 0.40266844 114.97390 7.7120815 6903.0297 47965833. -0.20768173 0.40953529 115.03091 7.5471392 6905.8609 48323623. -0.21328640 0.41640215 115.08170 7.3884286 6908.6921 47233425. -0.21950216 0.42326900 115.13624 7.2147218 6911.5233 45335266. -0.22658361 0.43013586 115.19618 7.0228340 6914.3545 41057491. -0.23598731 0.43700271 115.26284 6.8376691 6917.1856 38275235. -0.24928084 0.44386956 115.31771 6.6674340 6920.0168 37505674. -0.29633623 0.45073642 115.36992 6.4990101 6922.8480 35603889. -0.26907587 0.45760327 115.42917 6.3138452 6925.6792 35646399. -0.19378645 0.46447013 115.48842 6.1286778