# # 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 = 54.615720 km # Date (UTC) = 2013-01-15T09:38:05.986 # Date (julian) = 2456307.90145817 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6501.0448 6.5821290e+10 0.047313493 0.032598271 107.20898 43.342502 6503.0505 5.9763236e+10 0.055726135 0.033203081 107.29013 43.225605 6505.0562 5.4962599e+10 0.064551107 0.033807890 107.36489 43.115421 6507.0619 5.1130598e+10 0.073865216 0.034412700 107.43966 43.005238 6509.0676 4.7685756e+10 0.083593369 0.035017509 107.52363 42.885364 6511.0733 4.4150661e+10 0.093606539 0.035622319 107.60908 42.763935 6513.0789 4.0564597e+10 0.10388584 0.036227128 107.69453 42.642506 6515.0846 3.7190800e+10 0.11449779 0.036831938 107.77999 42.521077 6517.0903 3.4111905e+10 0.12545728 0.037436747 107.86357 42.397782 6519.0960 3.1345516e+10 0.13677151 0.038041557 107.94452 42.271854 6521.1017 2.8826662e+10 0.14838725 0.038646366 108.02634 42.146786 6523.1074 2.6420802e+10 0.15710476 0.039205725 108.11178 42.025359 6525.1131 2.4253855e+10 0.16394060 0.039769312 108.19723 41.903931 6527.1187 2.2369003e+10 0.16925847 0.040802680 108.26854 41.797191 6529.1244 2.0871238e+10 0.17308628 0.042433993 108.33937 41.690942 6531.1301 1.9564594e+10 0.17661391 0.045418068 108.41260 41.578220 6533.1358 1.8233595e+10 0.18015668 0.047577300 108.48906 41.456791 6535.1415 1.6859465e+10 0.18114066 0.048162918 108.56643 41.334450 6537.1472 1.5527863e+10 0.18079692 0.048754615 108.64738 41.208524 6539.1529 1.4332720e+10 0.17944055 0.049828669 108.72833 41.082598 6541.1586 1.3188368e+10 0.17754898 0.051275111 108.80488 40.961075 6543.1642 1.2131769e+10 0.17553043 0.051424999 108.88134 40.839646 6545.1699 1.1219623e+10 0.17377466 0.052457089 108.95354 40.729691 6547.1756 1.0479194e+10 0.17172412 0.053354147 109.02437 40.623443 6549.1813 9.8663123e+09 0.16931659 0.054151039 109.09641 40.512970 6551.1870 9.2780244e+09 0.16749969 0.055301386 109.17287 40.387042 6553.1927 8.6602292e+09 0.16594787 0.055238213 109.24932 40.261123 6555.1984 8.0220368e+09 0.16409375 0.054686695 109.32578 40.139647 6557.2040 7.4428665e+09 0.16197880 0.053738210 109.40223 40.018219 6559.2097 6.9622592e+09 0.15923780 0.052363508 109.46833 39.908444 6561.2154 6.5720557e+09 0.15640373 0.051266526 109.53129 39.802195 6563.2211 6.2350145e+09 0.15386350 0.049672596 109.59731 39.692510 6565.2268 5.8747551e+09 0.15148165 0.048060869 109.67377 39.571080 6567.2325 5.5121288e+09 0.14930277 0.046420619 109.75015 39.449710 6569.2382 5.1961160e+09 0.14701103 0.044867925 109.81314 39.339499 6571.2439 4.9347415e+09 0.14500771 0.044436674 109.87611 39.229315 6573.2495 4.7191602e+09 0.14255473 0.043457230 109.94530 39.113940 6575.2552 4.4979358e+09 0.13987824 0.042118633 110.02175 38.992512 6577.2609 4.2546423e+09 0.13689781 0.039810538 110.09714 38.871083 6579.2666 4.0009261e+09 0.13346620 0.036923935 110.16909 38.749654 6581.2723 3.7632520e+09 0.13052913 0.035514156 110.24092 38.628447 6583.2780 3.5657979e+09 0.12819167 0.034880968 110.30388 38.522199 6585.2837 3.4076404e+09 0.12598671 0.033743991 110.36685 38.415950 6587.2893 3.2622399e+09 0.12419783 0.033222478 110.43194 38.302515 6589.2950 3.1004056e+09 0.12244345 0.032460652 110.49940 38.181085 6591.3007 2.9372796e+09 0.12027450 0.028862579 110.56574 38.062466 6593.3064 2.7969689e+09 0.11837235 0.026817353 110.62870 37.952283 6595.3121 2.6843896e+09 0.11600215 0.025655936 110.69166 37.842101 6597.3178 2.5766949e+09 0.11372866 0.025622447 110.75781 37.723947 6599.3235 2.4604759e+09 0.11222242 0.024949185 110.82527 37.602518 6601.3292 2.3276279e+09 0.11214740 0.027200704 110.89491 37.481088 6603.3348 2.1935325e+09 0.11111660 0.026465047 110.96687 37.359659 6605.3405 2.0757167e+09 0.11057873 0.026950721 111.03544 37.242202 6607.3462 1.9828817e+09 0.10900599 0.025023346 111.09447 37.135953 6609.3519 1.9063797e+09 0.10596127 0.023810464 111.15350 37.029705 6611.3576 1.8283748e+09 0.10320098 0.024730418 111.21860 36.912520 6613.3633 1.7423117e+09 0.10216835 0.023706878 111.28606 36.791090 6615.3690 1.6575280e+09 0.10078345 0.023262884 111.34737 36.677204 6617.3747 1.5915655e+09 0.099500845 0.023563464 111.40247 36.570956 6619.3803 1.5343939e+09 0.098517458 0.024617684 111.45756 36.464708 6621.3860 1.4705469e+09 0.097344927 0.024961497 111.52447 36.339653 6623.3917 1.4001971e+09 0.095549804 0.024636949 111.59193 36.213727 6625.3974 1.3301216e+09 0.094186132 0.025871820 111.65322 36.102208 6627.4031 1.2788714e+09 0.092180839 0.025472516 111.71225 35.995960 6629.4088 1.2329907e+09 0.091125408 0.026035198 111.77202 35.886813 6631.4145 1.1866897e+09 0.089701649 0.025972867 111.83499 35.765384 6633.4201 1.1366989e+09 0.088709667 0.026225606 111.89795 35.643954 6635.4258 1.0766457e+09 0.087681998 0.026463648 111.96091 35.522525 6637.4315 1.0245931e+09 0.086745023 0.025950067 112.02388 35.401096 6639.4372 9.7489884e+08 0.086358497 0.025471807 112.08098 35.290959 6641.4429 9.3613287e+08 0.086934692 0.025149804 112.13608 35.184711 6643.4486 9.0871008e+08 0.086317856 0.025260349 112.19276 35.075385 6645.4543 8.7599445e+08 0.085463605 0.025664491 112.25573 34.953957 6647.4600 8.4039430e+08 0.084517996 0.026679948 112.31869 34.832530 6649.4656 8.0155780e+08 0.083660418 0.026991825 112.37395 34.725950 6651.4713 7.6714395e+08 0.083295360 0.026845370 112.42905 34.619686 6653.4770 7.3838422e+08 0.082818554 0.027769208 112.48760 34.506774 6655.4827 7.0879666e+08 0.081422234 0.027809669 112.55056 34.385345 6657.4884 6.7678905e+08 0.079868197 0.029467625 112.61183 34.267177 6659.4941 6.4960754e+08 0.078433527 0.031731534 112.66692 34.160928 6661.4998 6.2757472e+08 0.077036296 0.032789489 112.72202 34.054680 6663.5054 6.0825037e+08 0.075732707 0.032343141 112.77938 33.938205 6665.5111 5.8667824e+08 0.075407923 0.027709618 112.83785 33.816775 6667.5168 5.6067087e+08 0.074794242 0.027293295 112.89834 33.695345 6669.5225 5.3152718e+08 0.073913237 0.027819050 112.96130 33.573916 6671.5282 5.0492539e+08 0.073907192 0.026872876 113.02159 33.455927 6673.5339 4.8535718e+08 0.073441463 0.028257677 113.07275 33.349678 6675.5396 4.7030696e+08 0.071750322 0.030831830 113.12390 33.243430 6677.5453 4.5922107e+08 0.070395666 0.031583080 113.18007 33.126777 6679.5509 4.4250421e+08 0.070349730 0.029812497 113.23853 33.005348 6681.5566 4.2374304e+08 0.071334576 0.030084396 113.29362 32.890930 6683.5623 4.0920626e+08 0.071799090 0.032012662 113.34478 32.784682 6685.5680 3.9570790e+08 0.071538440 0.033304789 113.39594 32.678433 6687.5737 3.8228221e+08 0.069633980 0.034022948 113.45383 32.558210 6689.5794 3.6682417e+08 0.067533607 0.033494492 113.51229 32.436782 6691.5851 3.4962541e+08 0.066727188 0.032863226 113.57076 32.318487 6693.5908 3.3621308e+08 0.065961625 0.031401425 113.62923 32.201555 6695.5964 3.2672820e+08 0.065729604 0.029749915 113.68423 32.089682 6697.6021 3.1577469e+08 0.065123696 0.030167465 113.73539 31.983435 6699.6078 3.0426245e+08 0.063800444 0.031029597 113.78654 31.877187 6701.6135 2.9264345e+08 0.062184145 0.032309621 113.84032 31.756785 6703.6192 2.8166453e+08 0.062344097 0.035224631 113.89429 31.635355 6705.6249 2.7385887e+08 0.062414372 0.037779501 113.95145 31.513926 6707.6306 2.6327344e+08 0.062122085 0.040096500 114.00991 31.392497 6709.6362 2.5281559e+08 0.061273527 0.040727861 114.06292 31.278435 6711.6419 2.4371083e+08 0.059426688 0.041422575 114.11014 31.172186 6713.6476 2.3549012e+08 0.057493039 0.046028920 114.15736 31.065937 6715.6533 2.2772975e+08 0.055872414 0.048046770 114.21520 30.949602 6717.6590 2.2152369e+08 0.054006157 0.049833507 114.27367 30.832671 6719.6647 2.1368833e+08 0.052643703 0.050738346 114.32889 30.712499 6721.6704 2.0670932e+08 0.052993633 0.050505883 114.38286 30.591070 6723.6761 1.9971766e+08 0.051502794 0.049745990 114.43683 30.469641 6725.6817 1.9003257e+08 0.047787924 0.041150170 114.49080 30.348212 6727.6874 1.7791642e+08 0.047032044 0.040044538 114.54292 30.230936 6729.6931 1.6515746e+08 0.046306488 0.040583450 114.59014 30.124687 6731.6988 1.5745001e+08 0.044827822 0.043140765 114.63736 30.018439 6733.7045 1.5764157e+08 0.043861122 0.047749170 114.68952 29.904366 6735.7102 1.6229244e+08 0.045025502 0.050047334 114.74349 29.787434 6737.7159 1.6245518e+08 0.046354750 0.056415955 114.79746 29.668213 6739.7215 1.5664384e+08 0.046508671 0.063709588 114.85143 29.546784 6741.7272 1.4840134e+08 0.044836997 0.067832804 114.90411 29.425355 6743.7329 1.4152070e+08 0.040699866 0.075991701 114.95359 29.303926 6745.7386 1.3502054e+08 0.039276787 0.078877391 115.00333 29.182776 6747.7443 1.2904723e+08 0.035142763 0.067104929 115.05730 29.065844 6749.7500 1.2269032e+08 0.033309476 0.072072588 115.11127 28.948912 6751.7557 1.1967328e+08 0.030616360 0.074031171 115.15959 28.840936 6753.7614 1.1706910e+08 0.029276938 0.075441172 115.20680 28.734688 6755.7670 1.1269536e+08 0.027182212 0.074269047 115.25469 28.625266 6757.7727 1.0829947e+08 0.026208675 0.074395032 115.30416 28.508333 6759.7784 1.0372786e+08 0.027013452 0.076007799 115.35364 28.391070 6761.7841 1.0326035e+08 0.029977550 0.078033007 115.40311 28.269641 6763.7898 1.0404885e+08 0.033456684 0.078843082 115.45258 28.148211 6765.7955 1.0069583e+08 0.035364495 0.079676410 115.50587 28.030606 6767.8012 94821455. 0.033268359 0.081078672 115.55984 27.913675 6769.8068 91655828. 0.029011285 0.086411224 115.61100 27.793926 6771.8125 90046816. 0.025487198 0.091275897 115.66047 27.672497 6773.8182 86585041. 0.021986817 0.096140569 115.70994 27.552880 6775.8239 85068379. 0.018464480 0.10100524 115.75941 27.435948 6777.8296 79502765. 0.014983815 0.10586991 115.80888 27.318209 6779.8353 76429364. 0.011480458 0.11073459 115.85835 27.196779 6781.8410 76810909. 0.0079368512 0.11559926 115.90782 27.075349 6783.8467 75196623. 0.0044050966 0.12046393 115.95729 26.958219 6785.8523 74799595. 0.00085669524 0.12532860 116.00676 26.841287 6787.8580 71073135. -0.0026693407 0.13019328 116.05623 26.721062 6789.8637 66093752. -0.0061987332 0.13505795 116.10570 26.599633 6791.8694 58137642. -0.0097140190 0.13992262 116.15517 26.480493 6793.8751 56250482. -0.013327605 0.14478729 116.20464 26.363562 6795.8808 53666709. -0.017415666 0.14965196 116.25412 26.245346 6797.8865 49812423. -0.023912009 0.15451664 116.30359 26.123917 6799.8922 48268745. -0.025256050 0.15938131 116.35278 26.002766 6801.8978 45634113. -0.023511006 0.16424598 116.39775 25.885834