# # 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 = 54.118399 km # Date (UTC) = 2013-11-24T10:27:49.091 # Date (julian) = 2456620.93598485 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6477.6481 8.1858360e+10 0.075727837 0.025543039 -30.837818 59.734096 6480.0355 7.1799226e+10 0.080567364 0.026262955 -31.029876 59.628361 6482.4229 6.5046332e+10 0.083781687 0.026982871 -31.221922 59.520628 6484.8103 5.9807069e+10 0.086135185 0.027702787 -31.425966 59.408506 6487.1977 5.4863155e+10 0.088432680 0.028422703 -31.645452 59.290734 6489.5851 5.0383433e+10 0.090466736 0.029142619 -31.843986 59.178676 6491.9725 4.6738062e+10 0.091886034 0.029862536 -32.026664 59.070941 6494.3599 4.3531089e+10 0.093020594 0.030582452 -32.220679 58.956522 6496.7473 4.0722570e+10 0.093897260 0.031302368 -32.429458 58.833396 6499.1347 3.7890140e+10 0.094855719 0.032022284 -32.623455 58.718987 6501.5221 3.5391750e+10 0.095618886 0.032742200 -32.806132 58.611255 6503.9095 3.3439755e+10 0.096060019 0.033462116 -32.986789 58.503522 6506.2969 3.1759116e+10 0.096260150 0.034182032 -33.164784 58.395789 6508.6843 3.0117587e+10 0.095653208 0.034901948 -33.348732 58.283491 6511.0717 2.8152678e+10 0.093761252 0.035621864 -33.546804 58.160366 6513.4592 2.6098715e+10 0.091629488 0.036341780 -33.734264 58.043836 6515.8466 2.4242620e+10 0.093283592 0.037061696 -33.907574 57.936103 6518.2340 2.2749639e+10 0.10519044 0.037781613 -34.079508 57.828370 6520.6214 2.1524542e+10 0.12580125 0.038501529 -34.248134 57.720637 6523.0088 2.0368840e+10 0.14600199 0.039181288 -34.416760 57.612161 6525.3962 1.9341843e+10 0.15860812 0.039736999 -34.585386 57.499743 6527.7836 1.8271243e+10 0.16408286 0.041285366 -34.754458 57.387070 6530.1710 1.7061069e+10 0.16693316 0.044068087 -34.941823 57.263944 6532.5584 1.5782985e+10 0.16851941 0.047150678 -35.124810 57.143216 6534.9458 1.4537379e+10 0.16876459 0.048209137 -35.284067 57.035483 6537.3332 1.3475289e+10 0.16790052 0.048842322 -35.443325 56.927653 6539.7206 1.2603602e+10 0.16750714 0.050515921 -35.602583 56.815234 6542.1080 1.1761110e+10 0.16579047 0.051043251 -35.761841 56.702816 6544.4954 1.0867719e+10 0.16451047 0.052046253 -35.941259 56.576169 6546.8828 9.9785347e+09 0.16348709 0.053190961 -36.122778 56.448064 6549.2702 9.1232968e+09 0.16229275 0.054241683 -36.277376 56.340315 6551.6577 8.3932060e+09 0.16186262 0.055466598 -36.431973 56.232566 6554.0451 7.7983637e+09 0.16070261 0.054833326 -36.586549 56.120692 6556.4325 7.2750171e+09 0.15975900 0.053949545 -36.741122 56.008274 6558.8199 6.8115960e+09 0.15828437 0.052540672 -36.892189 55.895858 6561.2073 6.3812940e+09 0.15630411 0.051270538 -37.042078 55.783442 6563.5947 5.9955928e+09 0.15425958 0.049240452 -37.189094 55.671024 6565.9821 5.6512021e+09 0.15199122 0.047203218 -37.334301 55.558606 6568.3695 5.3036190e+09 0.15028288 0.045432005 -37.492000 55.438499 6570.7569 4.9511253e+09 0.14806586 0.044603973 -37.663306 55.310019 6573.1443 4.6065510e+09 0.14559383 0.043541675 -37.815812 55.191349 6575.5317 4.3046369e+09 0.14287933 0.041841227 -37.956334 55.078932 6577.9191 4.0612469e+09 0.14038095 0.038776650 -38.099084 54.966515 6580.3065 3.8461550e+09 0.13814267 0.036237474 -38.244290 54.854097 6582.6939 3.6362777e+09 0.13630666 0.035104955 -38.387899 54.741680 6585.0813 3.4380969e+09 0.13457788 0.033905740 -38.528420 54.629264 6587.4688 3.2603240e+09 0.13280065 0.033262227 -38.667976 54.516848 6589.8562 3.1090290e+09 0.13080326 0.031347440 -38.803814 54.404430 6592.2436 2.9569888e+09 0.12822138 0.027836952 -38.941031 54.290870 6594.6310 2.7979885e+09 0.12574389 0.025826151 -39.096278 54.162392 6597.0184 2.6208356e+09 0.12310677 0.025716928 -39.247583 54.037175 6599.4058 2.4542070e+09 0.12153677 0.024954136 -39.383419 53.924757 6601.7932 2.3235430e+09 0.12111216 0.027419237 -39.518938 53.812018 6604.1806 2.2065085e+09 0.11931351 0.026178508 -39.650112 53.694900 6606.5680 2.1004927e+09 0.11819936 0.026483281 -39.781286 53.577781 6608.9554 1.9925970e+09 0.11460337 0.023707110 -39.912440 53.465053 6611.3428 1.8959925e+09 0.11100631 0.024739841 -40.043592 53.352637 6613.7302 1.8101698e+09 0.10916355 0.023841510 -40.171005 53.240219 6616.1176 1.7363125e+09 0.10662470 0.023300761 -40.297475 53.127801 6618.5050 1.6520910e+09 0.10504976 0.024152157 -40.435938 53.001169 6620.8924 1.5544820e+09 0.10336106 0.025054786 -40.580478 52.867336 6623.2798 1.4632760e+09 0.10075802 0.024595505 -40.710638 52.750544 6625.6673 1.3733791e+09 0.098519429 0.026193839 -40.837108 52.638126 6628.0547 1.3035880e+09 0.096098495 0.025725288 -40.960481 52.522613 6630.4421 1.2483942e+09 0.094217562 0.025929391 -41.082266 52.405512 6632.8295 1.1902632e+09 0.092729521 0.026131806 -41.204051 52.290875 6635.2169 1.1364714e+09 0.091279324 0.026432312 -41.325837 52.178459 6637.6043 1.0827242e+09 0.089970207 0.025865451 -41.447623 52.066042 6639.9917 1.0321915e+09 0.089791697 0.025273621 -41.569408 51.953623 6642.3791 9.8663273e+08 0.089789576 0.025167210 -41.694279 51.835720 6644.7665 9.3849519e+08 0.088744144 0.025426449 -41.828111 51.701887 6647.1539 8.8844479e+08 0.087508395 0.026518815 -41.955450 51.574549 6649.5413 8.3743731e+08 0.086468081 0.026887506 -42.072551 51.457448 6651.9287 7.9039437e+08 0.085943452 0.027195899 -42.189652 51.341533 6654.3161 7.5294737e+08 0.084979462 0.027901551 -42.306753 51.229117 6656.7035 7.2393878e+08 0.082740797 0.028640909 -42.423300 51.116147 6659.0909 7.0168642e+08 0.080696993 0.031815627 -42.535718 50.999046 6661.4784 6.6896370e+08 0.079031313 0.032778584 -42.648136 50.881945 6663.8658 6.2507863e+08 0.077430361 0.032243290 -42.776348 50.753652 6666.2532 5.8302473e+08 0.077288282 0.026957927 -42.902976 50.626483 6668.6406 5.4880613e+08 0.075986666 0.028037634 -43.015410 50.509364 6671.0280 5.2741599e+08 0.075528373 0.026865747 -43.127845 50.392245 6673.4154 5.0825392e+08 0.074610789 0.028080454 -43.240261 50.275144 6675.8028 4.8639982e+08 0.072052380 0.031335994 -43.352677 50.158043 6678.1902 4.6418625e+08 0.070513404 0.030809402 -43.474153 50.031318 6680.5776 4.3728321e+08 0.070883659 0.029566145 -43.597279 49.902840 6682.9650 4.1046942e+08 0.071688882 0.031161847 -43.705353 49.785487 6685.3524 3.8878605e+08 0.071563615 0.033077075 -43.813088 49.668386 6687.7398 3.7462433e+08 0.069442121 0.033930294 -43.916872 49.551285 6690.1272 3.6297284e+08 0.067347063 0.033101283 -44.019920 49.434183 6692.5146 3.4869428e+08 0.066388664 0.032167714 -44.133395 49.305234 6694.9020 3.2842224e+08 0.065884800 0.029996768 -44.251169 49.171401 6697.2894 3.0526632e+08 0.065495454 0.030127895 -44.356573 49.055559 6699.6769 2.9128169e+08 0.064051955 0.030965889 -44.459622 48.943141 6702.0643 2.7795125e+08 0.062301340 0.032928043 -44.562670 48.827421 6704.4517 2.6871636e+08 0.062716621 0.036399346 -44.665718 48.710320 6706.8391 2.5534066e+08 0.062534203 0.039906747 -44.774110 48.583677 6709.2265 2.3652454e+08 0.061965669 0.040988491 -44.886529 48.449844 6711.6139 2.2555775e+08 0.059904302 0.041390667 -44.992368 48.327761 6714.0013 2.1474010e+08 0.057514390 0.047303506 -45.095418 48.210660 6716.3887 2.0623384e+08 0.055549267 0.048973879 -45.203784 48.084065 6718.7761 1.9515372e+08 0.053000782 0.051021141 -45.316203 47.950232 6721.1635 1.7749887e+08 0.053299091 0.050353166 -45.415517 47.828102 6723.5509 1.6644161e+08 0.051747600 0.049676201 -45.509199 47.711000 6725.9383 1.5835612e+08 0.047478381 0.040989893 -45.613457 47.587476 6728.3257 1.5139319e+08 0.046611335 0.040089769 -45.725876 47.458996 6730.7131 1.4691378e+08 0.044823243 0.041356703 -45.825245 47.338440 6733.1005 1.3581094e+08 0.043487308 0.044470193 -45.918927 47.221339 6735.4880 1.2684848e+08 0.044131263 0.049811429 -46.020125 47.094841 6737.8754 1.1856244e+08 0.045842351 0.056924039 -46.127191 46.961009 6740.2628 1.1307126e+08 0.045648182 0.064499249 -46.221725 46.838781 6742.6502 1.1147690e+08 0.042531387 0.070195015 -46.310721 46.721679 6745.0376 1.1013991e+08 0.038685092 0.078582684 -46.409812 46.595231 6747.4250 1.0751649e+08 0.034233284 0.067214856 -46.516879 46.461398 6749.8124 99584484. 0.032326338 0.072055500 -46.611475 46.339109 6752.1998 94826828. 0.029136770 0.073903274 -46.700487 46.221991 6754.5872 94079891. 0.027661862 0.075269175 -46.796551 46.095590 6756.9746 92839757. 0.024700718 0.076674723 -46.898247 45.961780 6759.3620 93302187. 0.025797560 0.075907315 -46.999953 45.827954 6761.7494 92065004. 0.028674793 0.078030142 -47.101665 45.694121 6764.1368 89374210. 0.032607938 0.079489841 -47.203379 45.564678 6766.5242 89942658. 0.033729648 0.080899577 -47.305093 45.436200 6768.9116 88489805. 0.029043205 0.084136327 -47.390258 45.318533 6771.2990 88622064. 0.024664860 0.090030464 -47.474583 45.201414 6773.6865 86992393. 0.020344331 0.095820974 -47.568741 45.070638 6776.0739 81707037. 0.015983944 0.10161148 -47.665099 44.936805 6778.4613 79756270. 0.011649481 0.10740199 -47.761458 44.802973 6780.8487 76004443. 0.0072818117 0.11319250 -47.857817 44.669142 6783.2361 72197170. 0.0028978804 0.11898302 -47.954161 44.535331 6785.6235 68060562. -0.0015095757 0.12477353 -48.047946 44.405073 6788.0109 64311782. -0.0059252960 0.13056404 -48.132272 44.287954 6790.3983 63846622. -0.010235695 0.13635455 -48.217120 44.169528 6792.7857 64158665. -0.014534353 0.14214506 -48.308128 44.035695 6795.1731 60673474. -0.019055846 0.14793557 -48.399134 43.901863 6797.5605 60826418. -0.023502072 0.15372608 -48.490140 43.768030 6799.9479 60308501. -0.028119037 0.15951659 -48.581146 43.634197 6802.3353 56765203. -0.033225983 0.16530710 -48.672153 43.500365 6804.7227 54143433. -0.038871067 0.17109761 -48.763152 43.366543 6807.1101 48504316. -0.046909849 0.17688812 -48.854142 43.232732 6809.4976 46020182. -0.070755567 0.18267863 -48.945143 43.102151 6811.8850 43135018. -0.060101745 0.18846914 -49.036150 42.973671 6814.2724 41798790. -0.026724057 0.19425965 -49.123206 42.841241