# # 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 = 52.711054 km # Date (UTC) = 2011-11-29T09:35:18.381 # Date (julian) = 2455894.89951830 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6506.9579 1.3497140e+11 0.078661837 0.034381353 -25.642545 53.281213 6509.0603 1.1362143e+11 0.087698829 0.035015306 -25.765411 53.178971 6511.1626 9.6917230e+10 0.096910717 0.035649260 -25.885029 53.079976 6513.2649 8.6085883e+10 0.10663462 0.036283213 -26.004646 52.980982 6515.3673 7.7251232e+10 0.11666339 0.036917167 -26.124264 52.878737 6517.4696 6.9073783e+10 0.12687405 0.037551120 -26.243881 52.775619 6519.5719 6.1698298e+10 0.13733117 0.038185073 -26.361999 52.674000 6521.6743 5.4789174e+10 0.14792726 0.038819027 -26.477492 52.575008 6523.7766 4.8780392e+10 0.15361198 0.039371591 -26.592984 52.476015 6525.8789 4.3427402e+10 0.15760480 0.039681904 -26.712368 52.373132 6527.9813 3.8774851e+10 0.16230711 0.041428886 -26.832003 52.269999 6530.0836 3.5513760e+10 0.16622569 0.043945741 -26.955566 52.159292 6532.1859 3.2694314e+10 0.16904047 0.046839524 -27.082825 52.041459 6534.2883 3.0162698e+10 0.17026848 0.048025199 -27.205460 51.929412 6536.3906 2.7846901e+10 0.17048527 0.048139989 -27.320970 51.826278 6538.4929 2.5699693e+10 0.17154435 0.049396718 -27.436481 51.723144 6540.5953 2.3724764e+10 0.17169518 0.051135327 -27.547975 51.620025 6542.6976 2.1833256e+10 0.17069225 0.051267090 -27.659342 51.516906 6544.7999 2.0055820e+10 0.16975633 0.052293280 -27.768461 51.416036 6546.9023 1.8553430e+10 0.16810775 0.053206958 -27.875705 51.317041 6549.0046 1.7234366e+10 0.16590037 0.053970984 -27.983446 51.217549 6551.1070 1.6102838e+10 0.16433753 0.055273292 -28.094814 51.114430 6553.2093 1.5036480e+10 0.16300676 0.055229862 -28.206183 51.011311 6555.3116 1.4153141e+10 0.16122579 0.054591529 -28.314679 50.908193 6557.4140 1.3489807e+10 0.15924937 0.053606639 -28.421922 50.805074 6559.5163 1.2686009e+10 0.15690912 0.052328907 -28.528044 50.701956 6561.6186 1.1814274e+10 0.15448781 0.051067837 -28.631162 50.598837 6563.7210 1.0885656e+10 0.15209814 0.049094384 -28.734281 50.495718 6565.8233 9.9510642e+09 0.15032196 0.047383537 -28.840896 50.392600 6567.9256 9.3023727e+09 0.14911492 0.045834546 -28.948139 50.289482 6570.0280 8.6251414e+09 0.14805280 0.044905926 -29.053637 50.186363 6572.1303 7.9928532e+09 0.14667590 0.044155538 -29.156755 50.083245 6574.2326 7.4398495e+09 0.14470342 0.042743273 -29.259869 49.980126 6576.3350 6.8590871e+09 0.14304197 0.040985841 -29.358887 49.876992 6578.4373 6.4823476e+09 0.14077214 0.037959066 -29.457896 49.773858 6580.5396 6.1521776e+09 0.13848845 0.036022052 -29.559267 49.670733 6582.6420 5.8760756e+09 0.13640609 0.035119097 -29.662385 49.567614 6584.7443 5.6564640e+09 0.13405786 0.034110060 -29.764884 49.464496 6586.8466 5.3914175e+09 0.13168659 0.033160352 -29.863877 49.361377 6588.9490 5.1534003e+09 0.12918752 0.033063018 -29.962871 49.258258 6591.0513 4.9064899e+09 0.12621488 0.029144014 -30.058871 49.155140 6593.1536 4.6757866e+09 0.12380966 0.026959379 -30.153739 49.052021 6595.2560 4.4616288e+09 0.12124406 0.025650117 -30.249852 48.947659 6597.3583 4.2511221e+09 0.11903786 0.025609657 -30.348846 48.840416 6599.4606 4.0504730e+09 0.11784518 0.024957436 -30.447840 48.733174 6601.5630 3.8233587e+09 0.11785703 0.027310822 -30.543216 48.629549 6603.6653 3.6012042e+09 0.11679381 0.026269408 -30.638086 48.526430 6605.7677 3.3706871e+09 0.11664722 0.027309041 -30.732955 48.423312 6607.8700 3.1313500e+09 0.11507969 0.023989101 -30.827824 48.320193 6609.9723 2.9484656e+09 0.11243786 0.023994756 -30.922575 48.217075 6612.0747 2.7840854e+09 0.11029468 0.024264972 -31.013319 48.113956 6614.1770 2.6602248e+09 0.10932382 0.023818554 -31.104064 48.010837 6616.2793 2.5599349e+09 0.10771054 0.023326139 -31.197300 47.907719 6618.3817 2.4560540e+09 0.10695618 0.024058993 -31.292169 47.804600 6620.4840 2.3639846e+09 0.10599563 0.024923164 -31.386300 47.701479 6622.5863 2.2698536e+09 0.10440340 0.024601932 -31.477058 47.598345 6624.6887 2.1715832e+09 0.10259347 0.025230947 -31.567816 47.495211 6626.7910 2.0798984e+09 0.10043975 0.025583100 -31.655447 47.388971 6628.8933 1.9764549e+09 0.098988939 0.026065797 -31.742066 47.281727 6630.9957 1.8743614e+09 0.097038313 0.025930755 -31.830051 47.175849 6633.0980 1.7842344e+09 0.095413288 0.026169363 -31.920796 47.072731 6635.2003 1.7025693e+09 0.093511582 0.026429831 -32.011541 46.969613 6637.3027 1.6386713e+09 0.091662718 0.026013173 -32.098544 46.866494 6639.4050 1.5692874e+09 0.090687521 0.025483317 -32.185163 46.763376 6641.5073 1.4980074e+09 0.091093129 0.025150023 -32.271783 46.660257 6643.6097 1.4330200e+09 0.090443293 0.025284672 -32.358402 46.557138 6645.7120 1.3715104e+09 0.089590560 0.025785234 -32.445022 46.454019 6647.8143 1.3100722e+09 0.088711938 0.026866535 -32.531643 46.350901 6649.9167 1.2530098e+09 0.088002165 0.026370093 -32.618263 46.247782 6652.0190 1.1933553e+09 0.087530497 0.027255752 -32.702269 46.142051 6654.1213 1.1407555e+09 0.086849374 0.027984531 -32.784763 46.034808 6656.2237 1.0960092e+09 0.085055559 0.028219742 -32.867256 45.928428 6658.3260 1.0455347e+09 0.083628001 0.030639275 -32.949751 45.825310 6660.4284 9.9881540e+08 0.082236783 0.032015348 -33.032247 45.722192 6662.5307 9.5563300e+08 0.080860570 0.032746526 -33.114742 45.619073 6664.6330 9.1866648e+08 0.079848290 0.029889895 -33.197238 45.515954 6666.7354 8.8810057e+08 0.079453721 0.027051888 -33.279737 45.412829 6668.8377 8.5775749e+08 0.078104334 0.028212069 -33.362245 45.309695 6670.9400 8.2708382e+08 0.077935715 0.026893134 -33.444752 45.206561 6673.0424 7.9842708e+08 0.077345605 0.027522567 -33.527248 45.099579 6675.1447 7.7009260e+08 0.075508484 0.030075497 -33.609743 44.992335 6677.2470 7.3730060e+08 0.073367730 0.032007042 -33.695859 44.879660 6679.3494 7.0378087e+08 0.072809712 0.029979074 -33.785426 44.761807 6681.4517 6.6867464e+08 0.073541979 0.030003893 -33.870618 44.649712 6683.5540 6.3580892e+08 0.073736155 0.032000520 -33.948988 44.546593 6685.6564 6.0727091e+08 0.073198195 0.033398122 -34.027357 44.443475 6687.7587 5.8047426e+08 0.070993141 0.033919765 -34.105728 44.336371 6689.8610 5.5567630e+08 0.068957422 0.033240954 -34.184100 44.229127 6691.9634 5.3506536e+08 0.067973358 0.032773971 -34.262470 44.124120 6694.0657 5.1556813e+08 0.067086491 0.031168938 -34.340840 44.021001 6696.1680 5.0103513e+08 0.066955987 0.029745602 -34.418725 43.917883 6698.2704 4.7623112e+08 0.066122510 0.030588936 -34.492970 43.814764 6700.3727 4.5665203e+08 0.064504491 0.030944167 -34.567215 43.711646 6702.4750 4.3862287e+08 0.063429244 0.033256054 -34.644319 43.608527 6704.5774 4.2582086e+08 0.063657055 0.036461076 -34.722689 43.505409 6706.6797 4.1752014e+08 0.063345139 0.039629390 -34.802801 43.397064 6708.7820 4.0043285e+08 0.062815302 0.040895200 -34.887655 43.274496 6710.8844 3.8621855e+08 0.061201084 0.040669602 -34.970945 43.154795 6712.9867 3.6684895e+08 0.059268223 0.043661961 -35.045191 43.051677 6715.0891 3.4877262e+08 0.057306126 0.047469667 -35.119436 42.948558 6717.1914 3.3474449e+08 0.055258297 0.049862430 -35.190700 42.845440 6719.2937 3.2228998e+08 0.053227137 0.051090783 -35.260821 42.742322 6721.3961 3.0982504e+08 0.053551186 0.050423232 -35.335342 42.633396 6723.4984 2.9589221e+08 0.052070788 0.049646904 -35.420196 42.510830 6725.6007 2.8347816e+08 0.048030312 0.041200777 -35.502438 42.391711 6727.7031 2.7161285e+08 0.046992338 0.040023711 -35.572569 42.288577 6729.8054 2.6220003e+08 0.045931940 0.040508613 -35.642699 42.185443 6731.9077 2.5439143e+08 0.044259499 0.043556570 -35.715929 42.082320 6734.0101 2.4299185e+08 0.043325131 0.049352994 -35.790175 41.979201 6736.1124 2.3611505e+08 0.045161931 0.050779929 -35.864809 41.871236 6738.2147 2.2465934e+08 0.046473420 0.058503286 -35.940234 41.753384 6740.3171 2.1133420e+08 0.046218462 0.064592015 -36.014558 41.637734 6742.4194 2.0209637e+08 0.043736434 0.069632700 -36.084678 41.530492 6744.5217 1.9491670e+08 0.039869049 0.078196961 -36.154798 41.423249 6746.6241 1.9115951e+08 0.036724398 0.071731768 -36.224919 41.319237 6748.7264 1.8803930e+08 0.035462552 0.070838538 -36.295040 41.216119 6750.8287 1.8199319e+08 0.032830743 0.073419236 -36.367065 41.107713 6752.9311 1.7347191e+08 0.030302239 0.073057050 -36.442490 40.989861 6755.0334 1.6784769e+08 0.028767893 0.074590698 -36.516655 40.875508 6757.1357 1.5895785e+08 0.026536272 0.076328113 -36.586775 40.772389 6759.2381 1.5413420e+08 0.027745071 0.075877406 -36.656895 40.669270 6761.3404 1.4920630e+08 0.029405094 0.077996350 -36.731331 40.550337 6763.4427 1.4561906e+08 0.034148232 0.077786159 -36.806758 40.427770 6765.5451 1.4361029e+08 0.036412126 0.079630700 -36.875660 40.318658 6767.6474 1.3475796e+08 0.034939175 0.081250828 -36.941656 40.215540 6769.7498 1.2902504e+08 0.030617933 0.086272736 -37.010174 40.108481 6771.8521 1.2293408e+08 0.027101324 0.091371821 -37.085599 39.990629 6773.9544 1.1995992e+08 0.023538793 0.096470907 -37.160335 39.872777 6776.0568 1.1849300e+08 0.019949708 0.10156999 -37.231045 39.754924 6778.1591 1.1201190e+08 0.016491554 0.10666908 -37.301638 39.637438 6780.2614 1.0739573e+08 0.013025802 0.11176816 -37.367635 39.534319 6782.3638 1.0538594e+08 0.0095145761 0.11686725 -37.433631 39.431200 6784.4661 1.0075569e+08 0.0061011218 0.12196634 -37.502458 39.316404 6786.5684 98433338. 0.0026209043 0.12706542 -37.573170 39.193839 6788.6708 93973001. -0.00077379108 0.13216451 -37.643882 39.073532 6790.7731 86774292. -0.0040152953 0.13726359 -37.714592 38.955680 6792.8754 83784470. -0.0074081620 0.14236268 -37.782139 38.843100 6794.9778 78748668. -0.010650604 0.14746176 -37.844011 38.739982 6797.0801 77010402. -0.014037510 0.15256085 -37.905883 38.636863 6799.1824 77460149. -0.017522352 0.15765994 -37.976006 38.519991 6801.2848 74609881. -0.020700745 0.16275902 -38.046718 38.402139 6803.3871 71411898. -0.023675876 0.16785811 -38.117429 38.284286 6805.4894 66835284. -0.026174368 0.17295719 -38.188140 38.166433 6807.5918 63835733. -0.028117688 0.17805628 -38.258852 38.045324 6809.6941 61922649. -0.028772203 0.18315536 -38.329564 37.922756 6811.7964 56573880. -0.012303467 0.18825445 -38.397590 37.802875 6813.8988 54139598. -0.031965470 0.19335354 -38.463587 37.685022 6816.0011 53499380. -0.072063407 0.19845262 -38.531697 37.567170