# # 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 = 60.686499 km # Date (UTC) = 2014-11-15T15:37:08.554 # Date (julian) = 2456977.15079345 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6505.6843 5.1505601e+10 0.068401160 0.033997301 20.965470 31.107615 6508.0083 4.6889674e+10 0.078196278 0.034698086 21.026503 30.954994 6510.3322 4.3530258e+10 0.088466705 0.035398871 21.083825 30.798663 6512.6562 4.2329419e+10 0.099737658 0.036099656 21.146914 30.634961 6514.9802 3.6421950e+10 0.10970846 0.036800440 21.219870 30.458648 6517.3041 2.9238636e+10 0.11853790 0.037501225 21.282096 30.298010 6519.6281 2.2930502e+10 0.12637901 0.038202010 21.341232 30.145388 6521.9521 1.9021129e+10 0.13476791 0.038902795 21.400369 29.992767 6524.2760 2.1250072e+10 0.14377556 0.039525019 21.459506 29.840146 6526.6000 2.4929400e+10 0.15283787 0.040297101 21.518643 29.687524 6528.9239 2.5730887e+10 0.15827188 0.042175452 21.577942 29.534975 6531.2479 2.3867933e+10 0.16182645 0.045589516 21.644663 29.353646 6533.5719 2.0312997e+10 0.16399413 0.047762616 21.708455 29.181346 6535.8958 1.6809936e+10 0.16318924 0.047835687 21.765776 29.030226 6538.2198 1.5602206e+10 0.16541287 0.049263711 21.823097 28.879106 6540.5438 1.4592749e+10 0.16637666 0.051110989 21.880419 28.727985 6542.8677 1.3626677e+10 0.16621386 0.051331674 21.937741 28.576864 6545.1917 1.2733252e+10 0.16619541 0.052457284 21.995063 28.425744 6547.5157 1.1899470e+10 0.16537148 0.053483457 22.049441 28.274624 6549.8396 1.1151120e+10 0.16436121 0.054821912 22.101551 28.123503 6552.1636 1.0457698e+10 0.16279510 0.055545595 22.157028 27.969017 6554.4875 9.8199117e+09 0.16062526 0.054842611 22.214349 27.812685 6556.8115 9.5674351e+09 0.15862439 0.053893820 22.271670 27.660142 6559.1355 8.7219220e+09 0.15618724 0.052371892 22.328992 27.509021 6561.4594 7.4814538e+09 0.15415190 0.051146286 22.382104 27.357900 6563.7834 6.2702617e+09 0.15235716 0.049022166 22.436124 27.206780 6566.1074 5.4249810e+09 0.15127977 0.047122156 22.490249 27.055660 6568.4313 5.8216813e+09 0.14957839 0.045375182 22.544374 26.904539 6570.7553 6.5412481e+09 0.14743137 0.044604648 22.598499 26.753419 6573.0792 6.6848761e+09 0.14562464 0.043593894 22.652655 26.602299 6575.4032 6.3029392e+09 0.14382770 0.041970169 22.704766 26.451177 6577.7272 5.5659781e+09 0.14233314 0.039078172 22.756877 26.300056 6580.0511 4.9624696e+09 0.14083643 0.036473503 22.808988 26.148937 6582.3751 4.7130192e+09 0.13892595 0.035191722 22.861098 25.997817 6584.6991 4.4824086e+09 0.13714723 0.034134710 22.913209 25.846696 6587.0230 4.2709879e+09 0.13534514 0.033163469 22.965319 25.695575 6589.3470 4.0727571e+09 0.13337992 0.032357603 23.017429 25.544455 6591.6709 3.8852771e+09 0.13081958 0.028444831 23.069539 25.393334 6593.9949 3.7044747e+09 0.12822567 0.026177262 23.121650 25.242214 6596.3189 3.5320713e+09 0.12512065 0.025725824 23.173761 25.093469 6598.6428 3.3703697e+09 0.12280496 0.025100256 23.225872 24.947559 6600.9668 3.2259959e+09 0.12240687 0.026977421 23.277982 24.798851 6603.2908 3.2041913e+09 0.12097887 0.026491147 23.330093 24.647731 6605.6147 2.9259034e+09 0.12117226 0.027180742 23.382204 24.496611 6607.9387 2.5608212e+09 0.12061098 0.023853455 23.433645 24.345490 6610.2626 2.2294870e+09 0.11917475 0.024253928 23.483499 24.194369 6612.5866 2.0429107e+09 0.11843864 0.023882462 23.533354 24.043249 6614.9106 2.3828608e+09 0.11518854 0.023313146 23.583208 23.892128 6617.2345 2.5244962e+09 0.11296190 0.023517007 23.633063 23.741008 6619.5585 2.4677963e+09 0.11225464 0.024660670 23.680379 23.594374 6621.8825 2.2484697e+09 0.11176193 0.024796953 23.727279 23.448466 6624.2064 1.9495167e+09 0.11106250 0.024972805 23.779087 23.297647 6626.5304 1.8630581e+09 0.10961926 0.025915147 23.831078 23.146526 6628.8543 1.7834939e+09 0.10820475 0.026049968 23.877978 22.995406 6631.1783 1.7031618e+09 0.10646002 0.025948878 23.925419 22.844828 6633.5023 1.6223060e+09 0.10500463 0.026239944 23.977530 22.698918 6635.8262 1.5493125e+09 0.10331412 0.026523694 24.027592 22.555540 6638.1502 1.4937530e+09 0.10193447 0.025665099 24.068628 22.423313 6640.4742 1.4479723e+09 0.10164402 0.025212638 24.109664 22.291086 6642.7981 1.3992659e+09 0.10105426 0.025184357 24.156516 22.140119 6645.1221 1.3441127e+09 0.099628154 0.025508876 24.203415 21.989377 6647.4460 1.2838574e+09 0.098023220 0.026672625 24.250315 21.843467 6649.7700 1.2735479e+09 0.096372100 0.026572268 24.297214 21.696756 6652.0940 1.1778830e+09 0.095934608 0.027276376 24.344113 21.545636 6654.4179 1.0550737e+09 0.095684129 0.027858181 24.391012 21.395460 6656.7419 9.5285138e+08 0.094475424 0.028674576 24.437911 21.246880 6659.0659 9.5419959e+08 0.092533386 0.031820860 24.484810 21.098300 6661.3898 1.0188461e+09 0.090297113 0.032733495 24.531710 20.949720 6663.7138 1.0211983e+09 0.088566400 0.032285405 24.578610 20.802103 6666.0377 9.6338162e+08 0.088613933 0.026915951 24.625509 20.656192 6668.3617 8.6828167e+08 0.088180120 0.027790863 24.672409 20.510282 6670.6857 8.2947204e+08 0.087890069 0.027010971 24.719308 20.364372 6673.0096 7.9381784e+08 0.087522677 0.027473629 24.762931 20.226109 6675.3336 7.6835311e+08 0.085540471 0.030437322 24.803968 20.093882 6677.6576 7.4543031e+08 0.083645421 0.031423425 24.847148 19.956652 6679.9815 7.2220490e+08 0.083576385 0.029456683 24.894047 19.810742 6682.3055 6.9714736e+08 0.084164705 0.030657947 24.938619 19.664833 6684.6295 6.6786608e+08 0.084093310 0.032686034 24.980307 19.518924 6686.9534 6.4145303e+08 0.082359587 0.034315795 25.024745 19.370265 6689.2774 6.1437179e+08 0.079386645 0.033766342 25.071645 19.219143 6691.6013 5.9026199e+08 0.078164678 0.032859387 25.118545 19.071194 6693.9253 5.7132826e+08 0.076831632 0.031286653 25.165444 18.925284 6696.2493 5.6607536e+08 0.076176187 0.029779349 25.208750 18.779375 6698.5732 5.2477615e+08 0.075056170 0.031004636 25.250438 18.633467 6700.8972 4.7051526e+08 0.073368023 0.031333188 25.294898 18.487509 6703.2212 4.2822042e+08 0.073230843 0.034228627 25.339011 18.341491 6705.5451 4.3677091e+08 0.072798113 0.037637709 25.383124 18.195474 6707.8691 4.6697321e+08 0.071780374 0.040062332 25.427237 18.049456 6710.1930 4.6637055e+08 0.070293569 0.040534280 25.473741 17.899060 6712.5170 4.3894086e+08 0.068151559 0.042789860 25.520567 17.748011 6714.8410 3.9432433e+08 0.066350586 0.047366632 25.562258 17.602099 6717.1649 3.7914927e+08 0.064141976 0.049864067 25.603946 17.456190 6719.4889 3.6308861e+08 0.062150102 0.050905357 25.645634 17.310281 6721.8129 3.4898786e+08 0.062318589 0.050548816 25.688238 17.164372 6724.1368 3.3415278e+08 0.059887943 0.048784158 25.735137 17.018463 6726.4608 3.2121432e+08 0.056100517 0.040955523 25.779362 16.877235 6728.7847 3.1297558e+08 0.055357837 0.040740336 25.815838 16.749566 6731.1087 3.0358042e+08 0.053314371 0.041966367 25.852646 16.620741 6733.4327 2.9741265e+08 0.051771091 0.046273382 25.894334 16.474831 6735.7566 2.8782530e+08 0.052602074 0.050096651 25.936023 16.329674 6738.0806 2.7762913e+08 0.053802107 0.057764789 25.977711 16.188976 6740.4046 2.6657163e+08 0.053093227 0.064741475 26.019399 16.047103 6742.7285 2.6328273e+08 0.049524064 0.070385922 26.061088 15.901194 6745.0525 2.4730220e+08 0.045609901 0.078588949 26.102776 15.755284 6747.3764 2.2846732e+08 0.040941565 0.067231566 26.146521 15.602177 6749.7004 2.2453864e+08 0.038871703 0.072086161 26.192156 15.442454 6752.0244 2.2128756e+08 0.035018600 0.074106277 26.237791 15.282731 6754.3483 2.2359147e+08 0.033350054 0.075653311 26.280946 15.131687 6756.6723 2.1319292e+08 0.030287987 0.075896821 26.322635 14.985777 6758.9963 1.9681407e+08 0.030723400 0.075812039 26.364323 14.839868 6761.3202 1.8583498e+08 0.031960239 0.077994681 26.406012 14.693959 6763.6442 1.7906023e+08 0.036607742 0.078399635 26.447700 14.552762 6765.9681 1.7165838e+08 0.038463596 0.079707932 26.489388 14.412063 6768.2921 1.6582184e+08 0.034728966 0.081907098 26.531077 14.266231 6770.6161 1.6292649e+08 0.029796131 0.088373942 26.572765 14.120321 6772.9400 1.6102591e+08 0.025370762 0.094010573 26.614453 13.974412 6775.2640 1.6014164e+08 0.020963688 0.099647205 26.655374 13.829271 6777.5880 1.5396383e+08 0.016541114 0.10528384 26.691851 13.688572 6779.9119 1.4731666e+08 0.012118976 0.11092047 26.729518 13.546684 6782.2359 1.3718350e+08 0.0076570076 0.11655710 26.771207 13.400774 6784.5598 1.3277306e+08 0.0032685642 0.12219373 26.812895 13.254864 6786.8838 1.3354548e+08 -0.0010179070 0.12783036 26.854584 13.108955 6789.2078 1.2487161e+08 -0.0054473159 0.13346699 26.898985 12.955924 6791.5317 1.1482903e+08 -0.0099185066 0.13910362 26.944655 12.796465 6793.8557 1.0999151e+08 -0.014277335 0.14474026 26.984081 12.646885 6796.1797 1.0939209e+08 -0.018498647 0.15037689 27.023507 12.497304 6798.5036 1.1169327e+08 -0.022610270 0.15601352 27.064457 12.353709 6800.8276 1.0778228e+08 -0.026898248 0.16165015 27.106146 12.213010 6803.1515 99338727. -0.031344596 0.16728678 27.143105 12.067582 6805.4755 93767565. -0.035687272 0.17292341 27.179582 11.921672 6807.7995 90062041. -0.039941464 0.17856004 27.228081 11.757728 6810.1234 87404385. -0.044141908 0.18419667 27.274330 11.601637 6812.4474 86030446. -0.048291613 0.18983331 27.316018 11.460939 6814.7714 83725751. -0.052519758 0.19546994 27.355493 11.318028 6817.0953 81888847. -0.056775863 0.20110657 27.391970 11.172119 6819.4193 78329370. -0.061207698 0.20674320 27.434597 11.016983 6821.7433 74106505. -0.065809560 0.21237983 27.483235 10.852830 6824.0672 72962282. -0.070351547 0.21801646 27.521404 10.708870 6826.3912 68003519. -0.075477610 0.22365309 27.557881 10.568172 6828.7151 65146951. -0.080842746 0.22928973 27.600078 10.399686 6831.0391 62643846. -0.086885454 0.23492636 27.642372 10.238242 6833.3631 56652791. -0.095102013 0.24056299 27.684060 10.097544 6835.6870 53742732. -0.10728688 0.24619962 27.725874 9.9457428 6838.0110 51040932. -0.15675796 0.25183625 27.767774 9.7862061 6840.3350 47793556. -0.12687097 0.25747288 27.806738 9.6368708 6842.6589 47865902. -0.046153620 0.26310951 27.843215 9.4961728