# # 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 = 41.233570 km # Date (UTC) = 2013-01-22T09:53:59.617 # Date (julian) = 2456314.91249557 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6494.7167 8.4017326e+10 0.025958417 0.030690037 -26.029381 54.735204 6496.4441 7.8268926e+10 0.030600835 0.031210925 -26.164951 54.617709 6498.1714 7.4795200e+10 0.035479437 0.031731812 -26.286715 54.510186 6499.8988 7.2400605e+10 0.040772949 0.032252699 -26.399042 54.409480 6501.6262 7.0921359e+10 0.046675110 0.032773587 -26.511597 54.308569 6503.3536 6.8929201e+10 0.053101469 0.033294474 -26.642623 54.191097 6505.0810 6.6068021e+10 0.059995028 0.033815362 -26.773648 54.073625 6506.8083 6.2496126e+10 0.067351093 0.034336249 -26.904694 53.956136 6508.5357 5.8718287e+10 0.075255968 0.034857136 -27.035746 53.838642 6510.2631 5.4879300e+10 0.083755759 0.035378024 -27.164149 53.721148 6511.9905 5.1158146e+10 0.092909593 0.035898911 -27.290682 53.603653 6513.7179 4.7487540e+10 0.10265839 0.036419798 -27.417214 53.486158 6515.4453 4.4010239e+10 0.11302305 0.036940686 -27.543746 53.368665 6517.1726 4.0675572e+10 0.12388787 0.037461573 -27.670278 53.251171 6518.9000 3.7479716e+10 0.13519237 0.037982461 -27.796811 53.133675 6520.6274 3.4493079e+10 0.14685500 0.038503348 -27.923344 53.016180 6522.3548 3.1576897e+10 0.15767666 0.039010156 -28.045595 52.894405 6524.0822 2.8932125e+10 0.16450061 0.039456150 -28.167608 52.772394 6525.8095 2.6645277e+10 0.16988879 0.039689823 -28.273971 52.666030 6527.5369 2.4893356e+10 0.17512378 0.041106288 -28.374677 52.565323 6529.2643 2.3475498e+10 0.17730698 0.042656810 -28.477944 52.462055 6530.9917 2.2098328e+10 0.17816371 0.045217050 -28.595415 52.344585 6532.7191 2.0632128e+10 0.18027339 0.047284904 -28.712886 52.227114 6534.4465 1.9076932e+10 0.18004885 0.048069449 -28.830379 52.105376 6536.1738 1.7619893e+10 0.17844049 0.047946039 -28.947874 51.983362 6537.9012 1.6381900e+10 0.17880902 0.049110111 -29.053171 51.876829 6539.6286 1.5417830e+10 0.17819056 0.050404535 -29.153878 51.776122 6541.3560 1.4625674e+10 0.17635755 0.051211086 -29.256361 51.672328 6543.0834 1.3826000e+10 0.17499248 0.051403773 -29.369336 51.550315 6544.8107 1.2938999e+10 0.17385966 0.052302041 -29.482312 51.428301 6546.5381 1.1978392e+10 0.17197992 0.052907319 -29.595287 51.310500 6548.2655 1.1079320e+10 0.17074879 0.053746937 -29.708262 51.193007 6549.9929 1.0321435e+10 0.16990021 0.054978116 -29.806845 51.084799 6551.7203 9.7388634e+09 0.16813172 0.055488578 -29.899805 50.980219 6553.4477 9.2406169e+09 0.16628581 0.055110036 -29.994893 50.873865 6555.1750 8.7140622e+09 0.16468940 0.054706291 -30.103349 50.756372 6556.9024 8.1768332e+09 0.16254778 0.053880453 -30.211805 50.638878 6558.6298 7.6934988e+09 0.15989693 0.052702636 -30.305936 50.533322 6560.3572 7.3345355e+09 0.15725326 0.051952263 -30.398895 50.428742 6562.0846 7.0285483e+09 0.15419811 0.050799437 -30.497159 50.319744 6563.8119 6.6715420e+09 0.15073694 0.048989132 -30.605594 50.202272 6565.5393 6.2920155e+09 0.14832714 0.047705983 -30.711527 50.086468 6567.2667 5.9498752e+09 0.14635377 0.046391678 -30.800613 49.981890 6568.9941 5.6559283e+09 0.14425060 0.044857856 -30.889699 49.877311 6570.7215 5.3823069e+09 0.14301600 0.044618650 -30.986918 49.763185 6572.4489 5.0817973e+09 0.14160858 0.043973108 -31.090855 49.641172 6574.1762 4.7818124e+09 0.13955286 0.042770360 -31.188524 49.526290 6575.9036 4.5405235e+09 0.13762515 0.041468095 -31.273738 49.425583 6577.6310 4.3488350e+09 0.13560879 0.039229224 -31.358951 49.324875 6579.3584 4.1511552e+09 0.13307582 0.036873479 -31.458263 49.208124 6581.0858 3.9376542e+09 0.13088038 0.035570639 -31.562201 49.086111 6582.8131 3.7141079e+09 0.12932148 0.035072515 -31.656026 48.973513 6584.5405 3.5385375e+09 0.12721596 0.034221065 -31.741238 48.868933 6586.2679 3.3959050e+09 0.12495262 0.033167833 -31.826451 48.764353 6587.9953 3.2463708e+09 0.12328260 0.033378888 -31.920948 48.647397 6589.7227 3.0772330e+09 0.12110857 0.031612261 -32.015848 48.529903 6591.4501 2.9006417e+09 0.11857250 0.028694076 -32.103526 48.422037 6593.1774 2.7546577e+09 0.11631603 0.026937259 -32.188738 48.317457 6594.9048 2.6427341e+09 0.11370096 0.025675822 -32.273316 48.212877 6596.6322 2.5410373e+09 0.11068582 0.025724399 -32.354657 48.108297 6598.3596 2.4476979e+09 0.10833360 0.025235489 -32.435998 48.003717 6600.0870 2.3481063e+09 0.10710621 0.025168655 -32.525230 47.888991 6601.8143 2.2329270e+09 0.10594151 0.027429200 -32.620129 47.766977 6603.5417 2.1153836e+09 0.10431320 0.026342573 -32.708594 47.652828 6605.2691 2.0067064e+09 0.10372056 0.026890803 -32.786060 47.552122 6606.9965 1.9221968e+09 0.10258583 0.025713303 -32.863527 47.451416 6608.7239 1.8420660e+09 0.10013929 0.023713232 -32.954704 47.333953 6610.4513 1.7512741e+09 0.097920333 0.024434141 -33.049584 47.211963 6612.1786 1.6584144e+09 0.096448874 0.024187282 -33.134469 47.099967 6613.9060 1.5752817e+09 0.095719061 0.023906010 -33.211936 46.995387 6615.6334 1.5113892e+09 0.094522214 0.023271020 -33.289402 46.890807 6617.3608 1.4600357e+09 0.093645876 0.023558865 -33.366869 46.786227 6619.0882 1.4098942e+09 0.092892761 0.024547186 -33.444336 46.681647 6620.8155 1.3560083e+09 0.092181670 0.025030006 -33.525249 46.569911 6622.5429 1.2875311e+09 0.091064892 0.024613484 -33.611110 46.447897 6624.2703 1.2198491e+09 0.089570691 0.025007004 -33.695311 46.330094 6625.9977 1.1650430e+09 0.088599358 0.026588146 -33.772778 46.229388 6627.7251 1.0993125e+09 0.087076041 0.025596894 -33.850245 46.128683 6629.4525 1.0473618e+09 0.085982572 0.026027300 -33.925326 46.025591 6631.1798 1.0039944e+09 0.084396218 0.025949033 -33.998918 45.921011 6632.9072 9.6539513e+08 0.083239251 0.026141128 -34.072511 45.816431 6634.6346 9.4532399e+08 0.081722424 0.026373133 -34.146104 45.711851 6636.3620 9.1002023e+08 0.080256150 0.026409181 -34.219696 45.607271 6638.0894 8.6961672e+08 0.079327848 0.025667749 -34.298840 45.494804 6639.8167 8.3141696e+08 0.079017818 0.025336152 -34.384703 45.372790 6641.5441 7.8743099e+08 0.079242044 0.025150148 -34.466699 45.254951 6643.2715 7.4881121e+08 0.078832022 0.025233613 -34.536419 45.150371 6644.9989 7.1351356e+08 0.078316187 0.025451564 -34.606139 45.045791 6646.7263 6.8680132e+08 0.077505726 0.026296088 -34.675859 44.941212 6648.4537 6.6624136e+08 0.076777923 0.027267960 -34.745579 44.836634 6650.1810 6.4362718e+08 0.076506428 0.026296681 -34.816182 44.731074 6651.9084 6.1486326e+08 0.076220834 0.027180334 -34.897525 44.613578 6653.6358 5.7969321e+08 0.075998547 0.027850276 -34.978867 44.496083 6655.3632 5.4625246e+08 0.075050091 0.027760282 -35.050177 44.389735 6657.0906 5.2499913e+08 0.073685109 0.029006158 -35.119895 44.285155 6658.8179 5.0497547e+08 0.072551146 0.031511715 -35.189614 44.180575 6660.5453 4.8394581e+08 0.071669861 0.032121670 -35.259334 44.075995 6662.2727 4.6639244e+08 0.070630837 0.032891268 -35.329054 43.971415 6664.0001 4.4637362e+08 0.069535878 0.032205770 -35.396065 43.866835 6665.7275 4.3483410e+08 0.069701208 0.027355147 -35.461913 43.762254 6667.4549 4.1976571e+08 0.069225974 0.027270532 -35.529586 43.655619 6669.1822 3.9724209e+08 0.068308410 0.028168538 -35.610929 43.533608 6670.9096 3.7194240e+08 0.068527455 0.026907223 -35.692271 43.411596 6672.6370 3.4708410e+08 0.068341172 0.027248813 -35.759589 43.305359 6674.3644 3.2806552e+08 0.067416506 0.029262167 -35.825435 43.200779 6676.0918 3.1618936e+08 0.065459465 0.031772862 -35.890029 43.097451 6677.8191 3.0474297e+08 0.064596221 0.031193724 -35.952003 42.996744 6679.5465 2.9243707e+08 0.064431433 0.029816150 -36.013976 42.896037 6681.2739 2.7438550e+08 0.065293353 0.029867493 -36.078813 42.792471 6683.0013 2.6188204e+08 0.065895943 0.031190466 -36.144649 42.687909 6684.7287 2.4990805e+08 0.065857965 0.032691069 -36.212235 42.580568 6686.4560 2.3936818e+08 0.064960941 0.034026421 -36.289058 42.458555 6688.1834 2.3156863e+08 0.062977881 0.033827533 -36.365881 42.336543 6689.9108 2.1736687e+08 0.061542778 0.033196146 -36.428650 42.231028 6691.6382 2.0756383e+08 0.060729809 0.032850691 -36.490623 42.126448 6693.3656 1.9916959e+08 0.060088935 0.031478673 -36.552596 42.021868 6695.0930 1.9064321e+08 0.059784774 0.029842399 -36.614569 41.917288 6696.8203 1.8433023e+08 0.059353955 0.030016620 -36.676542 41.812708 6698.5477 1.7961500e+08 0.058438229 0.030969628 -36.738516 41.708128 6700.2751 1.7733328e+08 0.057095181 0.030871770 -36.800489 41.603548 6702.0025 1.7332951e+08 0.055721093 0.032878714 -36.864540 41.496371 6703.7299 1.6477168e+08 0.056076677 0.035501594 -36.936844 41.378876 6705.4572 1.5738976e+08 0.056164310 0.037481502 -37.009129 41.261398 6707.1846 1.5039761e+08 0.055835164 0.040160378 -37.067415 41.156650 6708.9120 1.4814805e+08 0.055349529 0.041036727 -37.125516 41.052072 6710.6394 1.4776217e+08 0.054088633 0.040621648 -37.185191 40.947492 6712.3668 1.4268972e+08 0.052417446 0.042510938 -37.247164 40.842912 6714.0942 1.3837201e+08 0.050660127 0.047310487 -37.309138 40.738331 6715.8215 1.3392509e+08 0.049368066 0.048218835 -37.367917 40.633751 6717.5489 1.2923611e+08 0.047739355 0.049840315 -37.426018 40.529171 6719.2763 1.2703162e+08 0.046170809 0.051107331 -37.486471 40.420355 6721.0037 1.2274725e+08 0.046722639 0.050305009 -37.554255 40.298342 6722.7311 1.1629397e+08 0.046074312 0.049701417 -37.621748 40.176969 6724.4584 1.0955278e+08 0.043434095 0.046098330 -37.679848 40.076262 6726.1858 1.0482721e+08 0.040985528 0.040953043 -37.737949 39.975555 6727.9132 1.0046654e+08 0.040559351 0.039743727 -37.796048 39.873112 6729.6406 97674614. 0.039771005 0.040618456 -37.854147 39.768533 6731.3680 95368975. 0.038470478 0.042482362 -37.912246 39.663955 6733.0954 93112664. 0.037691941 0.044442023 -37.978740 39.544267 6734.8227 88828973. 0.037678874 0.049304098 -38.046527 39.422252 6736.5501 85577899. 0.039035553 0.052434766 -38.105448 39.311635 6738.2775 79948489. 0.039674914 0.058848864 -38.159675 39.207055 6740.0049 70935821. 0.038882537 0.064058704 -38.213901 39.102754 6741.7323 66238968. 0.036415537 0.067847154 -38.268127 39.002047 6743.4596 59522016. 0.031214674 0.074148203 -38.322354 38.901339 6745.1870 58186687. 0.025921339 0.078645512 -38.383220 38.790201 6746.9144 57432241. 0.0026671256 0.068356240 -38.450993 38.668213 6748.6418 53909489. 0.017573679 0.070393388 -38.515014 38.551046 6750.3692 53933085. 0.050556292 0.072634510 -38.569241 38.446466