# # 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 = 41.821654 km # Date (UTC) = 2015-11-24T09:38:46.234 # Date (julian) = 2457350.90192400 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6493.8686 7.4323133e+10 0.032278550 0.030434300 -16.722060 60.713969 6495.5520 6.9777099e+10 0.036619675 0.030941919 -16.867382 60.641308 6497.2354 6.5690602e+10 0.040748827 0.031449539 -17.011287 60.568643 6498.9187 6.1956253e+10 0.044763273 0.031957158 -17.153327 60.495972 6500.6021 5.8776436e+10 0.048836379 0.032464778 -17.295366 60.423301 6502.2855 5.5669769e+10 0.053106667 0.032972397 -17.444073 60.346438 6503.9689 5.1860316e+10 0.057549826 0.033480017 -17.602609 60.263395 6505.6523 4.7964261e+10 0.062252649 0.033987636 -17.761145 60.180352 6507.3357 4.4304671e+10 0.067406825 0.034495256 -17.902226 60.105146 6509.0190 4.1372207e+10 0.073381744 0.035002875 -18.037639 60.032485 6510.7024 3.8997549e+10 0.080328208 0.035510495 -18.173053 59.959824 6512.3858 3.6709047e+10 0.088169243 0.036018114 -18.308466 59.887163 6514.0692 3.4562309e+10 0.096937739 0.036525733 -18.443880 59.814503 6515.7526 3.2460443e+10 0.10659774 0.037033353 -18.579294 59.741844 6517.4359 3.0537507e+10 0.11721834 0.037540972 -18.712398 59.669183 6519.1193 2.8892486e+10 0.12878951 0.038048592 -18.844508 59.596521 6520.8027 2.7334911e+10 0.14105045 0.038556211 -18.976619 59.523860 6522.4861 2.5702412e+10 0.15243031 0.039044540 -19.121407 59.441691 6524.1695 2.3937763e+10 0.15994068 0.039487167 -19.272394 59.354874 6525.8529 2.2123152e+10 0.16525604 0.039684880 -19.422884 59.268374 6527.5362 2.0476929e+10 0.17033568 0.041105787 -19.551692 59.195712 6529.2196 1.9124289e+10 0.17218300 0.042585622 -19.680500 59.123051 6530.9030 1.7980219e+10 0.17339199 0.045092886 -19.809297 59.050379 6532.5864 1.6942925e+10 0.17570204 0.047174056 -19.934830 58.974444 6534.2698 1.5976463e+10 0.17570240 0.048020022 -20.060336 58.898481 6535.9532 1.5045773e+10 0.17442381 0.047810824 -20.185841 58.822517 6537.6365 1.4131012e+10 0.17532312 0.048985323 -20.311346 58.749746 6539.3199 1.3251830e+10 0.17470822 0.050030878 -20.436851 58.677085 6541.0033 1.2400786e+10 0.17354173 0.051325459 -20.562356 58.604424 6542.6867 1.1634304e+10 0.17269860 0.051262940 -20.684760 58.528661 6544.3701 1.0931654e+10 0.17155093 0.051944550 -20.806962 58.452698 6546.0534 1.0302159e+10 0.16995523 0.052508503 -20.929165 58.376735 6547.7368 9.7193121e+09 0.16964791 0.053567566 -21.051367 58.300771 6549.4202 9.1545133e+09 0.16845448 0.054394507 -21.173568 58.224808 6551.1036 8.6018285e+09 0.16711846 0.055272113 -21.295770 58.148845 6552.7870 8.0614351e+09 0.16643152 0.055388686 -21.415070 58.072871 6554.4704 7.5844729e+09 0.16480059 0.054842250 -21.533988 57.996896 6556.1537 7.1590246e+09 0.16274595 0.053990523 -21.652906 57.920921 6557.8371 6.7647155e+09 0.16116265 0.053341397 -21.786335 57.835675 6559.5205 6.3598227e+09 0.15865204 0.052328431 -21.922200 57.748873 6561.2039 5.9615207e+09 0.15576607 0.051272210 -22.053882 57.664307 6562.8873 5.5958715e+09 0.15365059 0.050035636 -22.169495 57.588332 6564.5707 5.2806306e+09 0.15141027 0.048512979 -22.285109 57.512357 6566.2540 4.9998781e+09 0.14943437 0.047039179 -22.400128 57.436384 6567.9374 4.7368902e+09 0.14831158 0.045824579 -22.512422 57.360421 6569.6208 4.4903679e+09 0.14696931 0.044892829 -22.624716 57.284458 6571.3042 4.2531273e+09 0.14559960 0.044420198 -22.737010 57.208494 6572.9876 4.0405331e+09 0.14421213 0.043664605 -22.849304 57.132531 6574.6709 3.8442017e+09 0.14244743 0.042532752 -22.961598 57.056567 6576.3543 3.6589483e+09 0.14046165 0.040963556 -23.073892 56.980604 6578.0377 3.4972280e+09 0.13847217 0.038590068 -23.186186 56.904639 6579.7211 3.3429662e+09 0.13631527 0.036674082 -23.298480 56.828674 6581.4045 3.2036180e+09 0.13405937 0.035474129 -23.410457 56.752393 6583.0879 3.0656509e+09 0.13230489 0.034977198 -23.519449 56.673127 6584.7712 2.9416419e+09 0.13028281 0.034095388 -23.628440 56.593862 6586.4546 2.8173252e+09 0.12805411 0.033165419 -23.737431 56.514821 6588.1380 2.7009879e+09 0.12628092 0.033333844 -23.846422 56.438857 6589.8214 2.5898984e+09 0.12400886 0.031416424 -23.955414 56.362894 6591.5048 2.4693113e+09 0.12128919 0.028632339 -24.064272 56.286797 6593.1881 2.3666164e+09 0.11887377 0.026927299 -24.169960 56.207530 6594.8715 2.2620387e+09 0.11624703 0.025694094 -24.275648 56.128263 6596.5549 2.1633989e+09 0.11316971 0.025724751 -24.381295 56.049038 6598.2383 2.0749939e+09 0.11090028 0.025293394 -24.483681 55.973074 6599.9217 1.9932501e+09 0.10978033 0.024985164 -24.586067 55.897111 6601.6051 1.9159774e+09 0.10903157 0.027330639 -24.688478 55.821123 6603.2884 1.8340081e+09 0.10797030 0.026492516 -24.805247 55.730777 6604.9718 1.7421104e+09 0.10753776 0.026648314 -24.922262 55.640186 6606.6552 1.6445021e+09 0.10676627 0.026326575 -25.034366 55.554504 6608.3386 1.5646850e+09 0.10470346 0.023723419 -25.136752 55.478539 6610.0220 1.4971151e+09 0.10245584 0.024023973 -25.239137 55.402574 6611.7054 1.4404637e+09 0.10030054 0.024508648 -25.340511 55.325590 6613.3887 1.3898151e+09 0.099457860 0.023716219 -25.439609 55.246312 6615.0721 1.3380455e+09 0.098367122 0.023253751 -25.538707 55.167035 6616.7555 1.2861919e+09 0.097049274 0.023400875 -25.637801 55.087760 6618.4389 1.2309275e+09 0.096460995 0.024102206 -25.736883 55.008494 6620.1223 1.1788866e+09 0.095831037 0.024806598 -25.835966 54.929227 6621.8056 1.1308779e+09 0.094668396 0.024822411 -25.935049 54.849960 6623.4890 1.0900765e+09 0.093043153 0.024673004 -26.034131 54.770694 6625.1724 1.0433732e+09 0.091946813 0.025603346 -26.133214 54.691428 6626.8558 9.9942373e+08 0.090030272 0.025500539 -26.231554 54.612906 6628.5392 9.5708300e+08 0.088964273 0.025922007 -26.327334 54.536943 6630.2226 9.1824273e+08 0.087612015 0.025928850 -26.423115 54.460979 6631.9059 8.8178852e+08 0.085969245 0.026022791 -26.518244 54.384364 6633.5893 8.3815259e+08 0.084671141 0.026255143 -26.610721 54.305097 6635.2727 8.0141850e+08 0.083405644 0.026440684 -26.703199 54.225830 6636.9561 7.6350915e+08 0.082198981 0.026178464 -26.795676 54.146564 6638.6395 7.3005731e+08 0.081482916 0.025643782 -26.888154 54.067296 6640.3229 7.0327282e+08 0.081999690 0.025231150 -26.980631 53.988029 6642.0062 6.7641075e+08 0.082224266 0.025151951 -27.073109 53.908762 6643.6896 6.5397514e+08 0.081566990 0.025296743 -27.165586 53.829496 6645.3730 6.2952313e+08 0.081010365 0.025626422 -27.258064 53.750231 6647.0564 5.9902554e+08 0.080295709 0.026467466 -27.352047 53.669674 6648.7398 5.6878777e+08 0.079561645 0.027459486 -27.457738 53.579081 6650.4231 5.4078879e+08 0.079462731 0.026352108 -27.563429 53.488489 6652.1065 5.1218042e+08 0.079246591 0.027279832 -27.661444 53.403160 6653.7899 4.8900623e+08 0.078875870 0.027928963 -27.750618 53.323895 6655.4733 4.7068093e+08 0.077731824 0.027805783 -27.839792 53.244629 6657.1567 4.5045724e+08 0.076423811 0.029082853 -27.927523 53.165363 6658.8401 4.3692495e+08 0.075192007 0.031550942 -28.013395 53.086096 6660.5234 4.1827015e+08 0.074305610 0.032101782 -28.099267 53.006829 6662.2068 3.9775139e+08 0.073304938 0.032928230 -28.186496 52.927558 6663.8902 3.8608997e+08 0.072146758 0.032236515 -28.275685 52.848280 6665.5736 3.7094300e+08 0.072243166 0.027607284 -28.364873 52.769002 6667.2570 3.5868077e+08 0.071762841 0.027197848 -28.452795 52.689729 6668.9404 3.4511828e+08 0.070644430 0.028302921 -28.538667 52.610462 6670.6237 3.3558525e+08 0.070653104 0.027039665 -28.624539 52.531195 6672.3071 3.2400084e+08 0.070284149 0.027057611 -28.709241 52.450759 6673.9905 3.0859321e+08 0.069561052 0.028940585 -28.791810 52.368190 6675.6739 2.9365462e+08 0.067850160 0.031089091 -28.874379 52.285621 6677.3573 2.7935413e+08 0.066644192 0.031850327 -28.962031 52.200433 6679.0406 2.7107056e+08 0.066087035 0.030234182 -29.060172 52.109842 6680.7240 2.6124395e+08 0.066971513 0.029597765 -29.158313 52.019251 6682.4074 2.4845432e+08 0.067476893 0.030735822 -29.245910 51.936328 6684.0908 2.3968338e+08 0.067446220 0.032658699 -29.328479 51.857061 6685.7742 2.3462724e+08 0.066884765 0.033522560 -29.411048 51.777794 6687.4576 2.2887123e+08 0.064925838 0.034087715 -29.491473 51.698527 6689.1409 2.2182677e+08 0.062514606 0.033889154 -29.570740 51.619260 6690.8243 2.1296354e+08 0.061638687 0.033021395 -29.650006 51.539992 6692.5077 2.0266078e+08 0.060703404 0.032175760 -29.731326 51.460726 6694.1911 1.9659876e+08 0.059650523 0.030993206 -29.813895 51.381461 6695.8745 1.9195773e+08 0.059284022 0.029698844 -29.896464 51.302195 6697.5579 1.8262151e+08 0.058381713 0.030161863 -29.983797 51.213962 6699.2412 1.7599866e+08 0.056893357 0.031367840 -30.074389 51.119595 6700.9246 1.6625171e+08 0.055064170 0.031353533 -30.164981 51.025229 6702.6080 1.5741225e+08 0.054196838 0.033362221 -30.241755 50.945125 6704.2914 1.5101165e+08 0.053973233 0.036320638 -30.317718 50.865858 6705.9748 1.4580123e+08 0.053555028 0.038401542 -30.393682 50.786592 6707.6581 1.4356393e+08 0.052942602 0.040092547 -30.472673 50.707326 6709.3415 1.4276893e+08 0.051964289 0.040915314 -30.551940 50.628059 6711.0249 1.3985459e+08 0.050278176 0.040720576 -30.631207 50.548793 6712.7083 1.2806119e+08 0.048164480 0.043145025 -30.717187 50.456102 6714.3917 1.1996116e+08 0.046025833 0.047332855 -30.804005 50.361735 6716.0751 1.1133552e+08 0.044167663 0.048511915 -30.887427 50.270990 6717.7584 1.0821703e+08 0.042311096 0.049827355 -30.960088 50.191723 6719.4418 1.0902079e+08 0.040894221 0.050950074 -31.032748 50.112456 6721.1252 1.0601811e+08 0.041077761 0.050341624 -31.106112 50.032487 6722.8086 1.0747302e+08 0.040400711 0.049605579 -31.182086 49.949905 6724.4920 1.0291884e+08 0.037323678 0.045818390 -31.258061 49.867324 6726.1754 98829296. 0.034547181 0.040952949 -31.335342 49.783263 6727.8587 92149861. 0.033359498 0.039816305 -31.418385 49.692671 6729.5421 85318890. 0.031686863 0.040684092 -31.501428 49.602080 6731.2255 81837141. 0.029584853 0.042198812 -31.578911 49.517553 6732.9089 75451590. 0.027209623 0.043907531 -31.651572 49.438286 6734.5923 72331387. 0.025355768 0.049317965 -31.724233 49.359019 6736.2756 68469394. 0.024003513 0.051397105 -31.802166 49.272084 6737.9590 64731105. 0.020192634 0.057190577 -31.885208 49.177718 6739.6424 62560347. 0.010268559 0.063612741 -31.968250 49.083351 6741.3258 61135938. -0.048697425 0.066687874 -32.039544 49.001949 6743.0092 58010564. -0.0048097169 0.071109343 -32.108902 48.922683 6744.6926 54350068. 0.10199435 0.078329088 -32.178260 48.843418