# # 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 = 56.831045 km # Date (UTC) = 2015-01-14T10:24:49.973 # Date (julian) = 2457036.93391173 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6529.5229 2.4005089e+10 0.17746051 0.043068639 99.699114 36.716315 6531.5062 2.2241536e+10 0.17869153 0.045965393 99.761313 36.604031 6533.4895 2.0369279e+10 0.17943707 0.047727593 99.832470 36.483957 6535.4728 1.8474671e+10 0.17863497 0.048019214 99.902975 36.364449 6537.4561 1.6741202e+10 0.17820730 0.048900242 99.961343 36.255496 6539.4394 1.5304450e+10 0.17714896 0.050175478 100.01971 36.146542 6541.4227 1.4153592e+10 0.17531682 0.051189458 100.07808 36.039461 6543.4060 1.3207062e+10 0.17358077 0.051488445 100.13645 35.934398 6545.3893 1.2330554e+10 0.17205586 0.052459055 100.19481 35.829335 6547.3726 1.1429305e+10 0.17055745 0.053429054 100.26078 35.706543 6549.3559 1.0498879e+10 0.16872117 0.054328967 100.32749 35.582022 6551.3392 9.6248866e+09 0.16718589 0.055354816 100.38867 35.467814 6553.3225 8.9118936e+09 0.16564852 0.055172948 100.44704 35.358859 6555.3058 8.3335289e+09 0.16373579 0.054596410 100.50577 35.248874 6557.2891 7.7699696e+09 0.16151479 0.053684889 100.56803 35.128802 6559.2724 7.1889381e+09 0.15868749 0.052356433 100.63029 35.008729 6561.2557 6.6560421e+09 0.15567856 0.051246665 100.68926 34.898040 6563.2390 6.2241017e+09 0.15276353 0.049651865 100.74763 34.789085 6565.2223 5.8650649e+09 0.15003062 0.048065934 100.80494 34.681197 6567.2056 5.5583886e+09 0.14762369 0.046443315 100.85941 34.576135 6569.1889 5.2610320e+09 0.14554912 0.044864722 100.91389 34.471072 6571.1722 4.9671848e+09 0.14425461 0.044456231 100.97698 34.352306 6573.1556 4.6692390e+09 0.14280326 0.043532654 101.04369 34.227786 6575.1389 4.3784141e+09 0.14118992 0.042235390 101.10483 34.112123 6577.1222 4.1251915e+09 0.13922784 0.040028485 101.15931 34.007045 6579.1055 3.9132964e+09 0.13673455 0.037012518 101.21380 33.901966 6581.0888 3.7485635e+09 0.13467474 0.035569728 101.26827 33.793454 6583.0721 3.5837125e+09 0.13313027 0.034985185 101.32275 33.684501 6585.0554 3.4240409e+09 0.13134700 0.033926497 101.37969 33.572031 6587.0387 3.2489310e+09 0.12956313 0.033166941 101.44195 33.451956 6589.0220 3.0678230e+09 0.12779183 0.033002350 101.50342 33.332634 6591.0053 2.9105789e+09 0.12553892 0.029195935 101.55400 33.223680 6592.9886 2.7780916e+09 0.12357647 0.027113294 101.60459 33.114727 6594.9719 2.6660190e+09 0.12117710 0.025638994 101.65711 33.007710 6596.9552 2.5672333e+09 0.11843001 0.025722931 101.71159 32.902648 6598.9385 2.4665720e+09 0.11629104 0.024959086 101.76606 32.797585 6600.9218 2.3548782e+09 0.11601950 0.026884963 101.82364 32.678594 6602.9051 2.2419497e+09 0.11483062 0.026744238 101.88145 32.558519 6604.8884 2.1262742e+09 0.11374121 0.026598795 101.93700 32.445999 6606.8717 2.0290705e+09 0.11225830 0.025937488 101.99148 32.337045 6608.8550 1.9457340e+09 0.10910597 0.023709764 102.04553 32.228517 6610.8383 1.8731359e+09 0.10616809 0.024803995 102.09611 32.123454 6612.8216 1.8062126e+09 0.10507517 0.023706849 102.14670 32.018390 6614.8050 1.7396422e+09 0.10421125 0.023385913 102.20118 31.905230 6616.7883 1.6660999e+09 0.10313373 0.023406016 102.25900 31.785156 6618.7716 1.5872717e+09 0.10281209 0.024353415 102.31471 31.668317 6620.7549 1.5110141e+09 0.10241837 0.025010452 102.36530 31.559362 6622.7382 1.4463734e+09 0.10135726 0.024561516 102.41588 31.450408 6624.7215 1.3891187e+09 0.10008204 0.025248511 102.46647 31.344259 6626.7048 1.3364017e+09 0.098504342 0.025692949 102.51705 31.239197 6628.6881 1.2900840e+09 0.097414965 0.025982464 102.56764 31.134134 6630.6714 1.2452974e+09 0.095977281 0.025929956 102.61822 31.029071 6632.6547 1.2105006e+09 0.094587617 0.026110848 102.66881 30.924009 6634.6380 1.1638015e+09 0.093240858 0.026373381 102.72360 30.807639 6636.6213 1.1125722e+09 0.091863662 0.026308476 102.78141 30.683118 6638.6046 1.0657001e+09 0.090876972 0.025645301 102.83553 30.565067 6640.5879 1.0201685e+09 0.091197481 0.025198720 102.88222 30.460004 6642.5712 9.8522131e+08 0.090877064 0.025175072 102.92892 30.354940 6644.5545 9.4774367e+08 0.089778955 0.025403538 102.98409 30.238430 6646.5378 9.0415332e+08 0.088667524 0.026198543 103.04190 30.118355 6648.5211 8.6787652e+08 0.087491567 0.027313131 103.09400 30.005989 6650.5044 8.3255365e+08 0.086823993 0.026370716 103.14071 29.900912 6652.4877 8.0071220e+08 0.086218465 0.027384718 103.18741 29.795834 6654.4710 7.7408252e+08 0.085237875 0.027835556 103.23410 29.690771 6656.4543 7.5025874e+08 0.083502493 0.028422197 103.28080 29.585708 6658.4377 7.2698186e+08 0.082239491 0.030837267 103.33165 29.475022 6660.4210 7.0036232e+08 0.081129163 0.032008629 103.38947 29.354948 6662.4043 6.6502305e+08 0.080088732 0.032817456 103.44588 29.236275 6664.3876 6.3429631e+08 0.079251363 0.030787994 103.49258 29.127320 6666.3709 6.1496147e+08 0.079250323 0.026980864 103.53927 29.018365 6668.3542 5.9981107e+08 0.078391571 0.027784196 103.58596 28.911575 6670.3375 5.8594815e+08 0.078062522 0.027172283 103.63266 28.806514 6672.3208 5.6697735e+08 0.077784799 0.027065533 103.67936 28.701433 6674.3041 5.4313502e+08 0.076880009 0.029211312 103.73263 28.581585 6676.2874 5.2572185e+08 0.074742499 0.031898949 103.78600 28.461511 6678.2707 5.0933715e+08 0.073884156 0.030755558 103.83444 28.352509 6680.2540 4.9046232e+08 0.074244678 0.029496267 103.88113 28.247446 6682.2373 4.7643550e+08 0.074792438 0.030605857 103.92820 28.139866 6684.2206 4.5378944e+08 0.074902352 0.032665287 103.97712 28.019792 6686.2039 4.3140598e+08 0.074196364 0.033879728 104.02604 27.899718 6688.1872 4.1412613e+08 0.071817209 0.033828408 104.07292 27.793440 6690.1705 3.9901326e+08 0.070103261 0.033096321 104.11961 27.688378 6692.1538 3.8803095e+08 0.069015851 0.032586691 104.16864 27.578073 6694.1371 3.7449220e+08 0.068057563 0.031068821 104.22200 27.457999 6696.1204 3.5449560e+08 0.067940860 0.029725827 104.27430 27.339435 6698.1037 3.3872108e+08 0.067157230 0.030360222 104.31710 27.234372 6700.0871 3.3048510e+08 0.065652209 0.030732287 104.35991 27.129309 6702.0704 3.2230548e+08 0.064159718 0.032932910 104.40596 27.016281 6704.0537 3.1411984e+08 0.064545388 0.036203904 104.45488 26.896206 6706.0370 2.9972840e+08 0.064672500 0.038510741 104.50317 26.781464 6708.0203 2.8583572e+08 0.064490893 0.040065652 104.54986 26.680292 6710.0036 2.7681773e+08 0.063476312 0.040497194 104.59656 26.579120 6711.9869 2.7076333e+08 0.061492856 0.041815032 104.64484 26.464487 6713.9702 2.6478563e+08 0.059525820 0.047195573 104.69376 26.344413 6715.9535 2.5069807e+08 0.058109440 0.048353790 104.73984 26.231298 6717.9368 2.4350895e+08 0.056223976 0.049816323 104.78265 26.126236 6719.9201 2.3681553e+08 0.055066065 0.050495678 104.82545 26.021173 6721.9034 2.3115631e+08 0.055183150 0.050576099 104.87372 25.902695 6723.8867 2.2408956e+08 0.053384090 0.049863476 104.92264 25.782621 6725.8700 2.0884441e+08 0.049737438 0.041032564 104.96761 25.672230 6727.8533 1.9769637e+08 0.049050861 0.039823523 105.01042 25.567167 6729.8366 1.9369655e+08 0.047958464 0.040487798 105.05368 25.461311 6731.8199 1.9044501e+08 0.046349790 0.043381830 105.10260 25.345683 6733.8032 1.8744029e+08 0.045353833 0.048285285 105.15152 25.230055 6735.7865 1.8090741e+08 0.046696146 0.050128398 105.20043 25.110753 6737.7698 1.6956491e+08 0.048038172 0.056587912 105.24935 24.990680 6739.7531 1.6180293e+08 0.048111534 0.063748258 105.29473 24.879282 6741.7365 1.5787344e+08 0.046345496 0.067859090 105.33754 24.774219 6743.7198 1.5815924e+08 0.042154176 0.075902886 105.38039 24.669036 6745.7031 1.5353750e+08 0.040702370 0.078862447 105.42931 24.548962 6747.6864 1.4859782e+08 0.036556838 0.067124872 105.47823 24.428887 6749.6697 1.4388424e+08 0.034947294 0.072094577 105.52377 24.312191 6751.6530 1.4009458e+08 0.032325310 0.073987752 105.56824 24.196564 6753.6363 1.3750457e+08 0.030836859 0.075036401 105.61186 24.086333 6755.6196 1.3395489e+08 0.028854164 0.074333698 105.65466 23.981271 6757.6029 1.2504383e+08 0.027639264 0.074910454 105.69747 23.876208 6759.5862 1.1927225e+08 0.028528383 0.075961412 105.74184 23.757021 6761.5695 1.1282967e+08 0.030829276 0.078015276 105.78632 23.636947 6763.5528 1.1082843e+08 0.034749040 0.078121333 105.83387 23.519951 6765.5361 1.1395908e+08 0.036659681 0.079629061 105.88279 23.404324 6767.5194 1.1091175e+08 0.035230570 0.081394160 105.92974 23.286724 6769.5027 1.1002371e+08 0.030869522 0.085673567 105.97421 23.166650 6771.4860 1.0222698e+08 0.027419431 0.090483953 106.01868 23.047443 6773.4693 95763856. 0.023967029 0.095294339 106.06315 22.931817 6775.4526 92510369. 0.020471331 0.10010472 106.10762 22.816190 6777.4359 89155861. 0.016981293 0.10491511 106.15052 22.710547 6779.4192 87698731. 0.013467439 0.10972550 106.19333 22.605470 6781.4025 87528127. 0.0099292269 0.11453588 106.23676 22.496423 6783.3858 83904974. 0.0064506001 0.11934627 106.28123 22.380815 6785.3692 82704691. 0.0029438555 0.12415665 106.32569 22.264635 6787.3525 75518362. -0.00042942613 0.12896704 106.37016 22.144561 6789.3358 70595247. -0.0038175056 0.13377742 106.41463 22.024487 6791.3191 68863374. -0.0072542020 0.13858781 106.45910 21.908323 6793.3024 65300782. -0.010640935 0.14339820 106.50358 21.792697 6795.2857 67289470. -0.014163789 0.14820858 106.54805 21.674265 6797.2690 66573644. -0.017632809 0.15301897 106.59252 21.554190 6799.2523 66050351. -0.021102971 0.15782935 106.63700 21.435816 6801.2356 64595570. -0.024547229 0.16263974 106.68147 21.320189 6803.2189 60970006. -0.027880053 0.16745013 106.72594 21.204562 6805.2022 57104599. -0.031552275 0.17226051 106.77041 21.088934 6807.1855 53786014. -0.035709868 0.17707090 106.81488 20.973306 6809.1688 50699351. -0.039044074 0.18188128 106.85542 20.853745 6811.1521 48626834. -0.041698636 0.18669167 106.89545 20.733671