# # 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 = 77.967412 km # Date (UTC) = 2011-12-02T10:48:19.785 # Date (julian) = 2455897.95022900 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6499.7763 1.6493236e+11 0.048970633 0.032215741 90.889779 33.220437 6502.6204 1.3738635e+11 0.059719859 0.033073382 90.961123 33.079231 6505.4645 1.1456621e+11 0.070494713 0.033931022 91.044826 32.922988 6508.3087 9.5662102e+10 0.081364763 0.034788662 91.126626 32.766744 6511.1528 7.9595229e+10 0.092380697 0.035646303 91.204748 32.610501 6513.9969 6.7197120e+10 0.10377210 0.036503943 91.282869 32.457320 6516.8411 5.7163726e+10 0.11561574 0.037361583 91.360991 32.306656 6519.6852 4.9057717e+10 0.12801419 0.038219224 91.439112 32.151769 6522.5293 4.2554955e+10 0.13964708 0.039055858 91.517234 31.995525 6525.3734 3.7692912e+10 0.14561151 0.039739594 91.586985 31.856030 6528.2176 3.3765956e+10 0.15045998 0.041615087 91.656429 31.717148 6531.0617 3.0462869e+10 0.15414978 0.045318496 91.734104 31.567092 6533.9058 2.7349506e+10 0.15806569 0.047904542 91.811354 31.415553 6536.7500 2.4317196e+10 0.16004863 0.048461520 91.883905 31.259285 6539.5941 2.1699051e+10 0.16242558 0.050362775 91.958487 31.103026 6542.4382 1.9415390e+10 0.16336571 0.051168616 92.036609 30.946782 6545.2824 1.7523432e+10 0.16450960 0.052458097 92.106919 30.803320 6548.1265 1.5980499e+10 0.16463735 0.053705423 92.171398 30.669400 6550.9706 1.4630141e+10 0.16345411 0.055228397 92.240365 30.523057 6553.8148 1.3399850e+10 0.16160885 0.054925497 92.312910 30.366812 6556.6589 1.2232753e+10 0.15903558 0.053916256 92.389717 30.214834 6559.5030 1.1149816e+10 0.15600755 0.052330404 92.467839 30.064170 6562.3472 1.0156162e+10 0.15292147 0.050549571 92.540533 29.908081 6565.1913 9.2870062e+09 0.15016984 0.048101187 92.611623 29.755858 6568.0354 8.5837678e+09 0.14804677 0.045739103 92.676114 29.621919 6570.8796 7.9858826e+09 0.14628156 0.044553169 92.741011 29.484314 6573.7237 7.4524146e+09 0.14425600 0.043076744 92.807970 29.328070 6576.5678 6.9210213e+09 0.14212945 0.040717827 92.877009 29.173903 6579.4119 6.4065674e+09 0.13946745 0.036844033 92.949553 29.023239 6582.2561 5.9265459e+09 0.13737116 0.035224109 93.022095 28.872576 6585.1002 5.4774398e+09 0.13537049 0.033890658 93.094636 28.721913 6587.9443 5.1007348e+09 0.13337061 0.033367599 93.156915 28.580536 6590.7885 4.7787492e+09 0.13049086 0.029595385 93.216437 28.441654 6593.6326 4.5015831e+09 0.12758627 0.026514091 93.286010 28.293676 6596.4767 4.2245833e+09 0.12409981 0.025725106 93.358550 28.143012 6599.3209 3.9405820e+09 0.12178723 0.024949029 93.425625 27.992349 6602.1650 3.6639399e+09 0.12112275 0.027375830 93.492589 27.840633 6605.0091 3.3970411e+09 0.11956060 0.026672703 93.559558 27.684366 6607.8533 3.1688705e+09 0.11680699 0.024022123 93.625542 27.536950 6610.6974 2.9874826e+09 0.11193192 0.024669323 93.690025 27.403029 6613.5415 2.8346614e+09 0.10940703 0.023772277 93.755449 27.262745 6616.3857 2.6963445e+09 0.10705472 0.023342828 93.822408 27.112081 6619.2298 2.5455169e+09 0.10621352 0.024581359 93.889369 26.961418 6622.0739 2.3927781e+09 0.10539671 0.024738317 93.956332 26.810756 6624.9181 2.2420187e+09 0.10404228 0.025353738 94.023292 26.655651 6627.7622 2.1025572e+09 0.10235839 0.025611230 94.090166 26.499560 6630.6063 1.9902889e+09 0.10086107 0.025929796 94.144764 26.365570 6633.4504 1.8964522e+09 0.099220194 0.026230896 94.199325 26.231649 6636.2946 1.8133114e+09 0.097414017 0.026435356 94.266135 26.081191 6639.1387 1.7233822e+09 0.096278591 0.025578497 94.333100 25.930523 6641.9828 1.6269082e+09 0.097022157 0.025151638 94.400074 25.779837 6644.8270 1.5368688e+09 0.095932890 0.025432984 94.464789 25.629160 6647.6711 1.4499778e+09 0.094560019 0.026791120 94.526171 25.478496 6650.5152 1.3645238e+09 0.093589783 0.026373189 94.590965 25.327833 6653.3594 1.2875149e+09 0.092892507 0.027709142 94.657923 25.177169 6656.2035 1.2228012e+09 0.090604724 0.028202029 94.714720 25.040229 6659.0476 1.1695815e+09 0.088269109 0.031824663 94.769280 24.906308 6661.8918 1.1196124e+09 0.086260759 0.032989144 94.829323 24.758933 6664.7359 1.0686205e+09 0.084794532 0.029513481 94.890769 24.608270 6667.5800 1.0163104e+09 0.083930840 0.027316511 94.957732 24.457606 6670.4242 9.6683569e+08 0.082812643 0.027132127 95.023470 24.306942 6673.2683 9.2009336e+08 0.081865510 0.027860464 95.084852 24.156278 6676.1124 8.7401356e+08 0.078849181 0.031786179 95.146238 24.005605 6678.9566 8.3026769e+08 0.077326269 0.030296831 95.207629 23.854919 6681.8007 7.9009894e+08 0.078518073 0.030271631 95.269011 23.707794 6684.6448 7.5074470e+08 0.078849119 0.032686813 95.330389 23.562712 6687.4889 7.1250930e+08 0.076867238 0.034070209 95.391770 23.412921 6690.3331 6.7723995e+08 0.074432793 0.033077693 95.453152 23.262256 6693.1772 6.4412420e+08 0.073352975 0.031543294 95.514534 23.111593 6696.0213 6.1244428e+08 0.072855841 0.029684653 95.575915 22.960929 6698.8655 5.8378201e+08 0.071501135 0.031405780 95.637297 22.810265 6701.7096 5.5907060e+08 0.069297543 0.032450639 95.696071 22.659601 6704.5537 5.3456337e+08 0.069591388 0.036449468 95.751872 22.508938 6707.3979 5.1364503e+08 0.069248602 0.040129832 95.811441 22.362042 6710.2420 4.9076277e+08 0.067897886 0.040543863 95.872823 22.216959 6713.0861 4.6489274e+08 0.065267891 0.043998147 95.929279 22.066947 6715.9303 4.4298090e+08 0.062683927 0.048330035 95.985591 21.916283 6718.7744 4.1992197e+08 0.059686302 0.051018477 96.046969 21.765620 6721.6185 4.0150336e+08 0.059747705 0.050490264 96.106683 21.616618 6724.4627 3.8445792e+08 0.056350679 0.046063163 96.162496 21.471513 6727.3068 3.6868707e+08 0.053186112 0.040551654 96.221133 21.323588 6730.1509 3.5666432e+08 0.051781165 0.040585835 96.282515 21.172925 6732.9951 3.4292517e+08 0.049961058 0.043923395 96.339906 21.026252 6735.8392 3.2968630e+08 0.050689476 0.050184289 96.395706 20.881168 6738.6833 3.1565389e+08 0.052049146 0.061083065 96.451507 20.730934 6741.5274 3.0387123e+08 0.050298258 0.067263005 96.508038 20.581001 6744.3716 2.9374246e+08 0.044917177 0.078080820 96.569420 20.435918 6747.2157 2.7964153e+08 0.040083918 0.067286900 96.631612 20.281648 6750.0598 2.6621951e+08 0.037818390 0.072106317 96.695385 20.109457 6752.9040 2.5231114e+08 0.035056176 0.073088408 96.753013 19.958162 6755.7481 2.4144349e+08 0.032497089 0.074277348 96.808813 19.813079 6758.5922 2.3184678e+08 0.031898679 0.074957689 96.864618 19.662534 6761.4364 2.2272266e+08 0.033993209 0.078004278 96.920422 19.512912 6764.2805 2.1496405e+08 0.039268931 0.079496724 96.976223 19.367829 6767.1246 2.0674469e+08 0.039718133 0.081836209 97.035170 19.214564 6769.9688 1.9679480e+08 0.033781794 0.086803941 97.098943 19.048751 6772.8129 1.8660931e+08 0.028758020 0.093702211 97.156126 18.895461 6775.6570 1.7887296e+08 0.023702936 0.10060048 97.211981 18.744274 6778.5012 1.7251901e+08 0.018630315 0.10749875 97.269381 18.578459 6781.3453 1.6827446e+08 0.013525394 0.11439702 97.326035 18.422316 6784.1894 1.6288395e+08 0.0084430590 0.12129529 97.381835 18.277233 6787.0336 1.5546854e+08 0.0034033011 0.12819356 97.437641 18.132135 6789.8777 1.4815006e+08 -0.0016305366 0.13509183 97.493450 17.987030 6792.7218 1.4214373e+08 -0.0066821781 0.14199010 97.556289 17.823647 6795.5659 1.3585112e+08 -0.011720276 0.14888837 97.618057 17.655827 6798.4101 1.2964367e+08 -0.016753101 0.15578664 97.675456 17.483638 6801.2542 1.2619704e+08 -0.021835927 0.16268491 97.731662 17.331685 6804.0983 1.2145072e+08 -0.026862105 0.16958318 97.787462 17.186602 6806.9425 1.1651213e+08 -0.031839709 0.17648145 97.844784 17.021731 6809.7866 1.1419575e+08 -0.036830108 0.18337972 97.901565 16.863928 6812.6307 1.1134770e+08 -0.041788976 0.19027799 97.957369 16.718845 6815.4749 1.1059995e+08 -0.046786879 0.19717626 98.014119 16.561439 6818.3190 1.0691623e+08 -0.051727431 0.20407453 98.071514 16.395626 6821.1631 99916483. -0.056597734 0.21097279 98.128913 16.229813 6824.0073 94409669. -0.061489353 0.21787106 98.189234 16.064000 6826.8514 89804080. -0.066393505 0.22476933 98.253007 15.898188 6829.6955 87611548. -0.071354827 0.23166760 98.304713 15.750830 6832.5397 83413475. -0.076263487 0.23856587 98.355638 15.603709 6835.3838 81158552. -0.081221287 0.24546414 98.413037 15.437895 6838.2279 79119722. -0.086184711 0.25236241 98.473816 15.272083 6841.0721 75017493. -0.091092144 0.25926068 98.537590 15.106270 6843.9162 72917578. -0.096052352 0.26615895 98.595225 14.940457 6846.7603 70316422. -0.10100092 0.27305722 98.652622 14.774644 6849.6045 69636952. -0.10600388 0.27995549 98.710021 14.608830 6852.4486 68752640. -0.11100152 0.28685376 98.767417 14.448285 6855.2927 67851922. -0.11600154 0.29375203 98.824813 14.287202 6858.1368 67748193. -0.12102304 0.30065030 98.882212 14.121389 6860.9810 66113300. -0.12600983 0.30754857 98.939608 13.955576 6863.8251 64751336. -0.13100120 0.31444684 98.997003 13.789764 6866.6692 59919820. -0.13590571 0.32134511 99.054403 13.623951 6869.5134 54467756. -0.14077387 0.32824338 99.117092 13.446967 6872.3575 50853603. -0.14566595 0.33514165 99.182038 13.265219 6875.2016 46363044. -0.15052305 0.34203992 99.239438 13.099405 6878.0458 43609116. -0.15542725 0.34893819 99.292741 12.933591 6880.8899 40545728. -0.16032249 0.35583646 99.344932 12.766289 6883.7340 37310162. -0.16521124 0.36273473 99.411900 12.580276 6886.5782 36396470. -0.17018254 0.36963300 99.471882 12.409002 6889.4223 38376464. -0.17524336 0.37653127 99.529278 12.244220 6892.2664 40066505. -0.18027909 0.38342954 99.586677 12.084786 6895.1106 43383066. -0.18532989 0.39032781 99.645339 11.905154 6897.9547 42484392. -0.19030083 0.39722607 99.706721 11.711699 6900.7988 42114005. -0.19528083 0.40412434 99.773683 11.518246 6903.6430 42112538. -0.20026185 0.41102261 99.831985 11.355601 6906.4871 39846204. -0.20522407 0.41792088 99.890100 11.184679 6909.3312 39891529. -0.21020203 0.42481915 99.949620 10.991226 6912.1753 39320155. -0.21517643 0.43171742 100.01653 10.805199 6915.0195 40788118. -0.22014718 0.43861569 100.07313 10.636459 6917.8636 41607455. -0.22510905 0.44551396 100.12545 10.474255 6920.7077 41312419. -0.23006982 0.45241223 100.19242 10.280800 6923.5519 39612425. -0.23503895 0.45931050 100.25389 10.092833 6926.3960 41406056. -0.23997660 0.46620877 100.31634 9.9038927 6929.2401 41561596. -0.24491734 0.47310704 100.38294 9.7108056 6932.0843 39227104. -0.24988148 0.48000531 100.44246 9.5247935 6934.9284 37373014. -0.25484006 0.48690358 100.50724 9.3387793 6937.7725 35903099. -0.25979729 0.49380185 100.57151 9.1527783 6940.6167 36657311. -0.26471116 0.50070012 100.63102 8.9666732 6943.4608 38589311. -0.26960558 0.50759839 100.69055 8.7732174 6946.3049 37576259. -0.27458297 0.51449666 100.76410 8.5597217 6949.1491 36963456. -0.27958513 0.52139493 100.83293 8.3570845 6951.9932 38868954. -0.28456597 0.52829320 100.89246 8.1710701 6954.8373 38894463. -0.28970498 0.53519147 100.95198 7.9850581 6957.6815 39494986. -0.29523305 0.54208974 101.02952 7.7668885 6960.5256 35678589. -0.30464692 0.54898801 101.09435 7.5658592 6963.3697 30014875. -0.30650595 0.55588628 101.15865 7.3604640 6966.2138 25241321. -0.30076356 0.56278455 101.22674 7.1477002