# # 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 = 38.412054 km # Date (UTC) = 2013-01-23T09:03:16.693 # Date (julian) = 2456315.87727654 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6493.8222 8.4143549e+10 0.022435460 0.030420306 -12.665453 55.546071 6495.4338 8.1127337e+10 0.026484505 0.030906269 -12.795629 55.436455 6497.0453 7.8019813e+10 0.030730233 0.031392233 -12.922110 55.326838 6498.6569 7.5490656e+10 0.035341530 0.031878196 -13.048591 55.217220 6500.2684 7.3007416e+10 0.040376492 0.032364159 -13.178241 55.107604 6501.8800 7.0640351e+10 0.045925130 0.032850122 -13.308937 54.997988 6503.4916 6.7743093e+10 0.051935750 0.033336085 -13.436432 54.888371 6505.1031 6.4547850e+10 0.058452133 0.033822048 -13.558697 54.778754 6506.7147 6.1066948e+10 0.065500981 0.034308011 -13.681004 54.669136 6508.3263 5.7726692e+10 0.073231955 0.034793974 -13.807450 54.559542 6509.9378 5.4404212e+10 0.081623065 0.035279937 -13.933905 54.449948 6511.5494 5.1229248e+10 0.090674849 0.035765900 -14.055018 54.340340 6513.1610 4.8188566e+10 0.10033923 0.036251863 -14.173067 54.230724 6514.7725 4.5032220e+10 0.11046015 0.036737827 -14.292227 54.121108 6516.3841 4.2045641e+10 0.12108596 0.037223790 -14.414492 54.011490 6517.9957 3.9413146e+10 0.13220723 0.037709753 -14.536757 53.901872 6519.6072 3.6973291e+10 0.14360910 0.038195716 -14.655263 53.788496 6521.2188 3.4744781e+10 0.15521736 0.038681679 -14.773311 53.674663 6522.8304 3.2579401e+10 0.16389647 0.039134689 -14.889168 53.563023 6524.4419 3.0504595e+10 0.16944147 0.039583954 -15.003001 53.453407 6526.0535 2.8519960e+10 0.17200954 0.039724158 -15.116834 53.343791 6527.6650 2.6620509e+10 0.17556666 0.041199304 -15.230666 53.234173 6529.2766 2.4798237e+10 0.17705428 0.042676405 -15.344498 53.124556 6530.8882 2.3022968e+10 0.17798984 0.045072130 -15.458314 53.011686 6532.4997 2.1371727e+10 0.18007961 0.047101674 -15.572124 52.897877 6534.1113 1.9782959e+10 0.17976875 0.047975694 -15.685943 52.785760 6535.7229 1.8260555e+10 0.17880632 0.047910718 -15.799776 52.676143 6537.3344 1.6896387e+10 0.17914868 0.048842898 -15.912978 52.566907 6538.9460 1.5788969e+10 0.17803825 0.049617334 -16.006933 52.469339 6540.5576 1.4959521e+10 0.17749868 0.051117511 -16.100887 52.371770 6542.1691 1.4263918e+10 0.17597841 0.051066450 -16.197868 52.271016 6543.7807 1.3532982e+10 0.17428391 0.051586791 -16.303269 52.161401 6545.3923 1.2727870e+10 0.17319450 0.052459081 -16.408669 52.051785 6547.0038 1.1905537e+10 0.17201655 0.053288820 -16.517833 51.938405 6548.6154 1.1151766e+10 0.17013784 0.053851423 -16.627449 51.824573 6550.2270 1.0439495e+10 0.16918165 0.055042187 -16.734871 51.712934 6551.8385 9.7676991e+09 0.16763444 0.055530085 -16.840272 51.603316 6553.4501 9.1615649e+09 0.16565219 0.055108815 -16.942896 51.495490 6555.0617 8.6490643e+09 0.16398736 0.054801564 -17.029623 51.397924 6556.6732 8.2538701e+09 0.16129692 0.053914150 -17.116350 51.300357 6558.2848 7.9063224e+09 0.15871667 0.052996637 -17.208591 51.198194 6559.8963 7.5475163e+09 0.15630627 0.052286009 -17.309776 51.088577 6561.5079 7.1433807e+09 0.15344445 0.051122394 -17.410960 50.978914 6563.1195 6.7215890e+09 0.15137921 0.049790163 -17.512125 50.865109 6564.7310 6.3057791e+09 0.14952368 0.048440290 -17.613289 50.751298 6566.3426 5.9421217e+09 0.14750789 0.046989074 -17.705255 50.647836 6567.9542 5.6735291e+09 0.14611527 0.045810414 -17.791982 50.550268 6569.5657 5.4535734e+09 0.14442527 0.044889245 -17.878709 50.452700 6571.1773 5.2379354e+09 0.14269714 0.044454852 -17.974345 50.344653 6572.7889 4.9861985e+09 0.14112670 0.043778394 -18.071314 50.235037 6574.4004 4.7082850e+09 0.13910874 0.042662681 -18.168283 50.123321 6576.0120 4.4210894e+09 0.13712733 0.041357590 -18.265252 50.009488 6577.6236 4.1591759e+09 0.13533329 0.039240915 -18.360474 49.897704 6579.2351 3.9366663e+09 0.13285298 0.036941241 -18.443587 49.800136 6580.8467 3.7750650e+09 0.13055069 0.035738292 -18.526701 49.702568 6582.4583 3.6399631e+09 0.12858521 0.035169092 -18.613272 49.600678 6584.0698 3.4710961e+09 0.12625143 0.034477479 -18.706024 49.491063 6585.6814 3.2941561e+09 0.12424644 0.033426024 -18.798776 49.381447 6587.2929 3.1218523e+09 0.12245068 0.033223275 -18.878451 49.283719 6588.9045 2.9940171e+09 0.12011753 0.033077866 -18.957952 49.186151 6590.5161 2.8876519e+09 0.11755323 0.030102085 -19.040361 49.085012 6592.1276 2.7661577e+09 0.11493507 0.027949549 -19.133113 48.971180 6593.7392 2.6320435e+09 0.11243351 0.026414984 -19.225866 48.857347 6595.3508 2.4849681e+09 0.11018182 0.025659947 -19.318618 48.743514 6596.9623 2.3465062e+09 0.10819395 0.025722898 -19.411370 48.629681 6598.5739 2.2244622e+09 0.10680823 0.025133165 -19.496099 48.523586 6600.1855 2.1298899e+09 0.10657148 0.025371156 -19.571986 48.426017 6601.7970 2.0465915e+09 0.10603713 0.027421046 -19.647873 48.328449 6603.4086 1.9668493e+09 0.10487561 0.026421387 -19.732708 48.222361 6605.0202 1.8735644e+09 0.10444630 0.026681955 -19.821226 48.112767 6606.6317 1.7767219e+09 0.10356546 0.026368776 -19.905500 48.007214 6608.2433 1.6952099e+09 0.10153370 0.023725939 -19.981387 47.909646 6609.8549 1.6319218e+09 0.099178178 0.023959863 -20.057274 47.812077 6611.4664 1.5732700e+09 0.096874930 0.024661019 -20.137957 47.705259 6613.0780 1.5012039e+09 0.096116210 0.023602203 -20.222278 47.591426 6614.6895 1.4236719e+09 0.095122348 0.023465421 -20.304227 47.480795 6616.3011 1.3490906e+09 0.093827344 0.023329559 -20.376499 47.383227 6617.9127 1.2926984e+09 0.093261549 0.023741845 -20.448771 47.285659 6619.5242 1.2490493e+09 0.092415155 0.024652405 -20.521044 47.188090 6621.1358 1.2119276e+09 0.091378126 0.025044433 -20.593317 47.090522 6622.7474 1.1731194e+09 0.090008006 0.024559067 -20.665590 46.992953 6624.3589 1.1286259e+09 0.088401894 0.025054447 -20.745841 46.884614 6625.9705 1.0745925e+09 0.087372562 0.026555704 -20.830161 46.770781 6627.5821 1.0196591e+09 0.085672443 0.025541654 -20.909934 46.661671 6629.1936 9.7132739e+08 0.084583028 0.026074096 -20.978593 46.564103 6630.8052 9.3364683e+08 0.083172989 0.025930286 -21.047252 46.466535 6632.4168 9.0090862e+08 0.082102277 0.026082318 -21.124103 46.362665 6634.0283 8.6333833e+08 0.081059384 0.026328909 -21.208424 46.253049 6635.6399 8.1953010e+08 0.080262457 0.026495749 -21.290377 46.145254 6637.2515 7.7971364e+08 0.079514297 0.026038257 -21.359036 46.047686 6638.8630 7.4452200e+08 0.078837473 0.025634043 -21.427694 45.950118 6640.4746 7.1743921e+08 0.079458449 0.025212586 -21.494966 45.852550 6642.0861 6.9598616e+08 0.079494411 0.025155222 -21.560012 45.754981 6643.6977 6.7355192e+08 0.078760115 0.025297965 -21.625058 45.657412 6645.3093 6.5117471e+08 0.078137319 0.025596570 -21.699388 45.549816 6646.9208 6.1993957e+08 0.077331011 0.026396806 -21.779492 45.435983 6648.5324 5.9056693e+08 0.076565847 0.027320681 -21.855913 45.326130 6650.1440 5.6643681e+08 0.076247627 0.026288197 -21.920958 45.228563 6651.7555 5.4893896e+08 0.075755331 0.027063176 -21.986004 45.130996 6653.3671 5.3024565e+08 0.075374440 0.027713091 -22.056218 45.025676 6654.9787 5.0520004e+08 0.074469035 0.027619304 -22.132091 44.911866 6656.5902 4.7649282e+08 0.073007546 0.028541462 -22.206828 44.799761 6658.2018 4.5417807e+08 0.071990424 0.030418971 -22.271873 44.702192 6659.8134 4.3398836e+08 0.070920959 0.031664930 -22.336917 44.604624 6661.4249 4.1379072e+08 0.069782205 0.032751374 -22.401962 44.507056 6663.0365 4.0037768e+08 0.068896050 0.032473100 -22.467008 44.409487 6664.6481 3.8501618e+08 0.068198479 0.029834875 -22.532054 44.311918 6666.2596 3.7568165e+08 0.068057861 0.026959186 -22.600880 44.205073 6667.8712 3.6089258e+08 0.067579363 0.027423460 -22.672552 44.091240 6669.4828 3.4473457e+08 0.066971389 0.027859883 -22.742192 43.980636 6671.0943 3.2974746e+08 0.067152578 0.026866692 -22.803624 43.883067 6672.7059 3.1493421e+08 0.067044313 0.027288741 -22.865055 43.785499 6674.3174 3.0453431e+08 0.066258794 0.029222577 -22.926487 43.687931 6675.9290 2.9292888e+08 0.064604815 0.031577753 -22.987919 43.590363 6677.5406 2.8374476e+08 0.063753963 0.031589734 -23.049350 43.492795 6679.1521 2.7422856e+08 0.063400745 0.030142049 -23.117581 43.384429 6680.7637 2.6216001e+08 0.064364204 0.029606332 -23.189253 43.270597 6682.3753 2.4807869e+08 0.064990666 0.030711263 -23.257935 43.162568 6683.9868 2.3686400e+08 0.065188886 0.032634798 -23.319367 43.068614 6685.5984 2.2933119e+08 0.064959465 0.033336895 -23.380799 42.974660 6687.2100 2.2201240e+08 0.063482659 0.034225801 -23.445392 42.870276 6688.8215 2.1431789e+08 0.061415805 0.033974827 -23.512849 42.756443 6690.4331 2.0219309e+08 0.060784020 0.033066231 -23.579385 42.645094 6692.0447 1.9185254e+08 0.060127333 0.032713469 -23.640817 42.547526 6693.6562 1.8660980e+08 0.059557685 0.031378964 -23.702248 42.449958 6695.2678 1.8032394e+08 0.059515217 0.029810284 -23.762287 42.352390 6696.8794 1.7485176e+08 0.059211671 0.030041139 -23.820105 42.254822 6698.4909 1.6818689e+08 0.058510411 0.030891658 -23.877923 42.157253 6700.1025 1.6079879e+08 0.057485555 0.030743733 -23.941699 42.049631 6701.7140 1.5431996e+08 0.056307002 0.032457156 -24.009155 41.935798 6703.3256 1.4747656e+08 0.056717968 0.034490020 -24.074236 41.825975 6704.9372 1.4003603e+08 0.057122740 0.036637757 -24.132044 41.728425 6706.5487 1.3472416e+08 0.057112751 0.039401447 -24.189852 41.630875 6708.1603 1.2886305e+08 0.057126896 0.040218146 -24.245936 41.533316 6709.7719 1.2514146e+08 0.056491931 0.040641595 -24.300141 41.435747 6711.3834 1.2207065e+08 0.055195531 0.041128478 -24.354347 41.338179 6712.9950 1.1985880e+08 0.053964797 0.043677343 -24.417976 41.229043 6714.6066 1.1514262e+08 0.052584944 0.047349010 -24.485432 41.115210 6716.2181 1.0681800e+08 0.051523029 0.048722646 -24.548392 41.006896 6717.8297 1.0096790e+08 0.050252569 0.049822948 -24.602597 40.909328 6719.4413 97670442. 0.049101682 0.050950609 -24.656801 40.811760 6721.0528 95033011. 0.049733790 0.050319815 -24.716174 40.704888 6722.6644 88428528. 0.049452495 0.049783845 -24.779414 40.591056 6724.2760 80779682. 0.047839534 0.047622262 -24.840846 40.481200 6725.8875 74133072. 0.045575019 0.041021629 -24.895050 40.387247 6727.4991 67616259. 0.047933549 0.040295463 -24.949254 40.293293 6729.1106 63523878. 0.045131305 0.040971677 -25.003459 40.197775 6730.7222 62085286. 0.038010565 0.041369146 -25.057663 40.100207