# # 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 = 38.220392 km # Date (UTC) = 2016-12-01T09:09:06.494 # Date (julian) = 2457723.88132517 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6489.8794 1.4969542e+11 0.023366121 0.029231383 -12.841755 56.636657 6491.5128 1.4154135e+11 0.027659244 0.029723914 -12.957138 56.562939 6493.1461 1.2491718e+11 0.032216208 0.030216444 -13.068099 56.492336 6494.7795 1.1121036e+11 0.036326491 0.030708975 -13.167796 56.429670 6496.4128 1.0327345e+11 0.039814410 0.031201505 -13.267493 56.367005 6498.0462 9.7746012e+10 0.043046254 0.031694035 -13.367190 56.304339 6499.6795 9.2017261e+10 0.046316006 0.032186566 -13.476498 56.233159 6501.3129 8.7044367e+10 0.049857677 0.032679096 -13.588659 56.159454 6502.9462 7.9558826e+10 0.053591355 0.033171627 -13.700819 56.085749 6504.5795 7.2954598e+10 0.057886031 0.033664157 -13.804870 56.017373 6506.2129 6.8192077e+10 0.063269662 0.034156687 -13.904567 55.951858 6507.8462 6.4338658e+10 0.069929940 0.034649218 -14.004264 55.886343 6509.4796 6.0645527e+10 0.077840249 0.035141748 -14.105257 55.819681 6511.1129 5.6108875e+10 0.086689426 0.035634279 -14.214213 55.745974 6512.7463 5.1147348e+10 0.096450317 0.036126809 -14.323169 55.672268 6514.3796 4.6325185e+10 0.10719008 0.036619339 -14.431830 55.598723 6516.0129 4.2134946e+10 0.11900386 0.037111870 -14.525846 55.533197 6517.6463 3.9005940e+10 0.13200295 0.037604400 -14.619858 55.467673 6519.2796 3.6394934e+10 0.14490605 0.038096931 -14.713871 55.402150 6520.9130 3.4000142e+10 0.15658025 0.038589461 -14.813862 55.332459 6522.5463 3.1270929e+10 0.16500075 0.039060310 -14.919613 55.258754 6524.1797 2.8516270e+10 0.16885658 0.039490785 -15.025365 55.185048 6525.8130 2.6034842e+10 0.17140186 0.039689428 -15.125440 55.114527 6527.4463 2.3916608e+10 0.17505329 0.041040524 -15.216591 55.049012 6529.0797 2.2304818e+10 0.17651861 0.042362725 -15.307742 54.983497 6530.7130 2.0828171e+10 0.17826070 0.044826932 -15.398894 54.917982 6532.3464 1.9376609e+10 0.18043785 0.046973553 -15.502866 54.845275 6533.9797 1.7894115e+10 0.18026844 0.047935939 -15.608617 54.771570 6535.6131 1.6420423e+10 0.17977365 0.047958352 -15.714369 54.697864 6537.2464 1.5103199e+10 0.18009972 0.048801397 -15.806900 54.628206 6538.8798 1.3991556e+10 0.17911892 0.049585074 -15.895203 54.559842 6540.5131 1.3084628e+10 0.17867307 0.051096501 -15.983506 54.491478 6542.1464 1.2253853e+10 0.17710801 0.051057834 -16.074535 54.421794 6543.7798 1.1423033e+10 0.17537965 0.051586551 -16.173878 54.348089 6545.4131 1.0522199e+10 0.17423983 0.052459268 -16.273221 54.274384 6547.0465 9.6865699e+09 0.17299154 0.053305036 -16.371169 54.201713 6548.6798 8.9812193e+09 0.17089644 0.053870661 -16.459483 54.136190 6550.3132 8.3956937e+09 0.16953836 0.055063771 -16.547797 54.070666 6551.9465 7.9135026e+09 0.16755816 0.055567987 -16.636112 54.005143 6553.5798 7.4448459e+09 0.16473962 0.055043588 -16.729247 53.932602 6555.2132 6.9845058e+09 0.16242190 0.054674237 -16.825385 53.855693 6556.8465 6.5295657e+09 0.15976371 0.053888670 -16.921522 53.778783 6558.4799 6.0997659e+09 0.15716265 0.052830393 -17.012364 53.707522 6560.1132 5.7146703e+09 0.15508581 0.052172230 -17.097818 53.642006 6561.7466 5.4170802e+09 0.15241793 0.051004793 -17.183273 53.576490 6563.3799 5.1462529e+09 0.14986928 0.049488906 -17.268727 53.510974 6565.0132 4.8714403e+09 0.14793154 0.048303355 -17.364706 53.434234 6566.6466 4.5792401e+09 0.14568500 0.046817110 -17.460844 53.357325 6568.2799 4.2795053e+09 0.14398675 0.045514336 -17.556981 53.280415 6569.9133 4.0176822e+09 0.14258550 0.044911865 -17.641420 53.213357 6571.5466 3.7916469e+09 0.14065272 0.044353982 -17.724026 53.147843 6573.1800 3.6055087e+09 0.13857599 0.043513064 -17.806632 53.082328 6574.8133 3.4309776e+09 0.13640571 0.042464375 -17.888233 53.015801 6576.4467 3.2630132e+09 0.13383671 0.040857288 -17.968001 52.947428 6578.0800 3.1121424e+09 0.13129106 0.038523293 -18.047769 52.879055 6579.7133 2.9686190e+09 0.12860677 0.036678344 -18.127536 52.810682 6581.3467 2.8311393e+09 0.12584629 0.035491629 -18.218413 52.735106 6582.9800 2.6779154e+09 0.12372722 0.035027102 -18.311346 52.658197 6584.6134 2.5131278e+09 0.12138479 0.034181386 -18.404279 52.581288 6586.2467 2.3667923e+09 0.11887445 0.033168107 -18.487683 52.512619 6587.8801 2.2450304e+09 0.11686000 0.033353356 -18.567440 52.447104 6589.5134 2.1569670e+09 0.11407289 0.032027440 -18.647197 52.381589 6591.1467 2.0679430e+09 0.11100856 0.029036328 -18.728393 52.313652 6592.7801 1.9811722e+09 0.10867904 0.027315824 -18.814917 52.236741 6594.4134 1.8765840e+09 0.10642594 0.025945571 -18.901441 52.159830 6596.0468 1.7799023e+09 0.10408450 0.025727061 -18.987342 52.083707 6597.6801 1.6886920e+09 0.10267174 0.025508108 -19.067100 52.015343 6599.3135 1.6004359e+09 0.10146137 0.024948583 -19.146857 51.946979 6600.9468 1.5379973e+09 0.10125869 0.026936328 -19.226615 51.878614 6602.5801 1.4709506e+09 0.10042241 0.027021559 -19.308451 51.807139 6604.2135 1.4146100e+09 0.099108960 0.026198040 -19.391783 51.733422 6605.8468 1.3378819e+09 0.098808973 0.027375470 -19.475114 51.659706 6607.4802 1.2569821e+09 0.097334892 0.024758825 -19.555483 51.588459 6609.1135 1.1941850e+09 0.094787782 0.023739653 -19.632392 51.520096 6610.7469 1.1416980e+09 0.092382151 0.024716591 -19.709301 51.451733 6612.3802 1.1016560e+09 0.090963936 0.024036675 -19.786210 51.383370 6614.0136 1.0491719e+09 0.089969784 0.023931156 -19.869213 51.306881 6615.6469 9.8495599e+08 0.088794841 0.023271435 -19.952532 51.229970 6617.2802 9.2515249e+08 0.087984608 0.023532161 -20.035851 51.153060 6618.9136 8.7690487e+08 0.087257848 0.024460659 -20.111483 51.083245 6620.5469 8.4534101e+08 0.086485347 0.024943444 -20.185544 51.014882 6622.1803 8.1962402e+08 0.085177536 0.024710011 -20.259605 50.946519 6623.8136 7.8649834e+08 0.083439553 0.024793256 -20.335600 50.875425 6625.4470 7.4348991e+08 0.082511561 0.025930957 -20.415714 50.798515 6627.0803 6.9855508e+08 0.080685369 0.025347829 -20.495829 50.721604 6628.7136 6.6460680e+08 0.079889073 0.025992841 -20.574739 50.646394 6630.3470 6.3952463e+08 0.078823735 0.025929157 -20.648799 50.578030 6631.9803 6.1838656e+08 0.077678787 0.026030347 -20.722859 50.509667 6633.6137 5.9643903e+08 0.076823483 0.026259394 -20.796920 50.441303 6635.2470 5.7076667e+08 0.076023805 0.026436831 -20.875156 50.367049 6636.8804 5.4397465e+08 0.075103023 0.026207873 -20.955283 50.290128 6638.5137 5.1982256e+08 0.074537143 0.025649262 -21.035409 50.213207 6640.1470 4.8886394e+08 0.075044530 0.025252661 -21.108851 50.141149 6641.7804 4.6510000e+08 0.075321193 0.025150950 -21.177215 50.072784 6643.4137 4.4519768e+08 0.074863257 0.025255087 -21.245578 50.004420 6645.0471 4.3165436e+08 0.074270186 0.025473738 -21.314435 49.935563 6646.6804 4.2253790e+08 0.073339340 0.026272355 -21.391345 49.858654 6648.3138 4.0507000e+08 0.072650318 0.027174319 -21.468255 49.781744 6649.9471 3.8870203e+08 0.072263888 0.026328146 -21.545165 49.704835 6651.5805 3.6466212e+08 0.071952522 0.026928998 -21.622076 49.627924 6653.2138 3.4354276e+08 0.071781904 0.027634818 -21.698986 49.551014 6654.8471 3.2586660e+08 0.070957430 0.027675337 -21.775897 49.474103 6656.4805 3.0779946e+08 0.069558939 0.028445134 -21.845827 49.404173 6658.1138 2.9169992e+08 0.068641492 0.030262951 -21.914191 49.335810 6659.7472 2.7798801e+08 0.067601606 0.031678738 -21.982554 49.267447 6661.3805 2.6944615e+08 0.066486923 0.032728753 -22.052552 49.196469 6663.0139 2.6188761e+08 0.065692422 0.032479373 -22.126258 49.119558 6664.6472 2.5295837e+08 0.065120721 0.029838014 -22.199964 49.042647 6666.2805 2.4452942e+08 0.065178721 0.026963262 -22.272152 48.967320 6667.9139 2.3154113e+08 0.064885781 0.027439144 -22.337675 48.898948 6669.5472 2.2573923e+08 0.064388202 0.027793660 -22.403199 48.830576 6671.1806 2.1695627e+08 0.064607066 0.026867922 -22.468722 48.762204 6672.8139 2.1208663e+08 0.064517869 0.027351360 -22.539771 48.688066 6674.4473 2.0734881e+08 0.063698062 0.029332084 -22.613476 48.611156 6676.0806 1.9547914e+08 0.062110003 0.031765673 -22.687181 48.534245 6677.7139 1.8455266e+08 0.061522814 0.031343268 -22.760887 48.457334 6679.3473 1.6948763e+08 0.061487671 0.029980786 -22.834593 48.380424 6680.9806 1.6412546e+08 0.062453329 0.029653176 -22.908299 48.303513 6682.6140 1.6165608e+08 0.063059838 0.030893645 -22.977212 48.230314 6684.2473 1.5522430e+08 0.063226830 0.032666642 -23.039878 48.161951 6685.8807 1.4851155e+08 0.062976718 0.033635036 -23.102545 48.093588 6687.5140 1.4110424e+08 0.061368811 0.034056233 -23.165211 48.025225 6689.1474 1.3586381e+08 0.059374104 0.033883384 -23.235113 47.948967 6690.7807 1.3681489e+08 0.058826607 0.033026395 -23.305614 47.872057 6692.4140 1.2779599e+08 0.058313009 0.032284531 -23.376115 47.795146 6694.0474 1.1859590e+08 0.057708224 0.031194619 -23.446616 47.715662 6695.6807 1.0845811e+08 0.057924089 0.029734433 -23.517117 47.635548 6697.3141 1.0385747e+08 0.057566610 0.030131011 -23.587618 47.555433 6698.9474 1.0335195e+08 0.056662801 0.031518249 -23.655939 47.477498 6700.5808 98134644. 0.055566146 0.031098481 -23.723245 47.400577 6702.2141 94022785. 0.054827784 0.033047689 -23.790551 47.323656 6703.8474 88252738. 0.055374928 0.035795806 -23.853645 47.251549 6705.4808 87368742. 0.055695965 0.037523347 -23.913464 47.183185 6707.1141 84997961. 0.055626503 0.040170477 -23.973282 47.114821 6708.7475 82585848. 0.055457582 0.040857550 -24.033488 47.046014 6710.3808 81258718. 0.054584309 0.040571035 -24.100784 46.969104 6712.0142 77292506. 0.053192337 0.041856249 -24.168080 46.892194 6713.6475 72854356. 0.051907765 0.046028505 -24.235377 46.815285 6715.2808 68557140. 0.050860812 0.047665831 -24.302674 46.738374 6716.9142 66940154. 0.049513609 0.049747879 -24.369970 46.661463 6718.5475 68411616. 0.047977317 0.050665157 -24.437267 46.584553 6720.1809 66098975. 0.047915858 0.050398809 -24.504563 46.507643 6721.8142 62575988. 0.048311282 0.050549228 -24.571859 46.430734 6723.4476 55530833. 0.047254605 0.049618558 -24.639155 46.353824 6725.0809 49847099. 0.044008584 0.041525481 -24.704239 46.274703 6726.7143 48807230. 0.042683887 0.040957809 -24.768331 46.194588 6728.3476 50315406. 0.042102385 0.040120755 -24.832423 46.114473