# # 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 = 80.058929 km # Date (UTC) = 2013-12-07T09:43:49.670 # Date (julian) = 2456633.90543599 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6494.2817 6.2650428e+10 0.037193693 0.030558880 109.35118 29.094873 6497.2265 5.6751839e+10 0.047137262 0.031446856 109.42455 28.945582 6500.1712 5.1020279e+10 0.056722550 0.032334832 109.49966 28.783812 6503.1159 4.5742214e+10 0.065973925 0.033222807 109.56869 28.638880 6506.0607 4.1149578e+10 0.075030799 0.034110783 109.63546 28.500204 6509.0054 3.7287193e+10 0.084164795 0.034998759 109.70624 28.357525 6511.9501 3.3935527e+10 0.093680555 0.035886735 109.77813 28.213733 6514.8948 3.1034565e+10 0.10386255 0.036774711 109.84574 28.069939 6517.8396 2.8276862e+10 0.11492595 0.037662686 109.91250 27.926145 6520.7843 2.5483422e+10 0.12691834 0.038550662 109.98668 27.771522 6523.7290 2.2767469e+10 0.13494909 0.039359803 110.05967 27.618246 6526.6738 2.0283945e+10 0.14023982 0.040374455 110.12130 27.479570 6529.6185 1.8205992e+10 0.14513705 0.043221000 110.18401 27.339821 6532.5632 1.6448580e+10 0.15002900 0.047154712 110.25077 27.196027 6535.5080 1.4868552e+10 0.15313036 0.048003945 110.31754 27.053582 6538.4527 1.3460907e+10 0.15735723 0.049377118 110.38430 26.914924 6541.3974 1.2149410e+10 0.16093797 0.051197648 110.45187 26.768976 6544.3422 1.0928224e+10 0.16367859 0.051921910 110.52120 26.607206 6547.2869 9.8274544e+09 0.16524218 0.053396462 110.58903 26.458947 6550.2316 8.8680433e+09 0.16491622 0.055043354 110.65579 26.320289 6553.1763 8.0823013e+09 0.16289427 0.055246420 110.71928 26.181619 6556.1211 7.4097006e+09 0.15975404 0.053995325 110.78092 26.042942 6559.0658 6.8301980e+09 0.15691394 0.052379754 110.84254 25.900733 6562.0105 6.3198422e+09 0.15402045 0.050869874 110.90417 25.756939 6564.9553 5.8158637e+09 0.15122703 0.048338669 110.97581 25.604081 6567.9000 5.3326403e+09 0.14905988 0.045856213 111.05076 25.448301 6570.8447 4.8898038e+09 0.14742494 0.044567592 111.11238 25.309643 6573.7895 4.5185840e+09 0.14549634 0.043023956 111.17401 25.170984 6576.7342 4.2101052e+09 0.14344180 0.040526321 111.23564 25.032307 6579.6789 3.9332442e+09 0.14077244 0.036697262 111.29728 24.893633 6582.6237 3.6890248e+09 0.13846463 0.035124081 111.35890 24.754975 6585.5684 3.4508267e+09 0.13612388 0.033516361 111.42086 24.613356 6588.5131 3.2185713e+09 0.13415168 0.033208574 111.48441 24.457364 6591.4578 2.9960012e+09 0.13128472 0.028685282 111.54711 24.306739 6594.4026 2.7936314e+09 0.12838783 0.025951527 111.60874 24.162945 6597.3473 2.6334172e+09 0.12494284 0.025613129 111.67036 24.021682 6600.2920 2.4901127e+09 0.12327437 0.025590257 111.73199 23.883023 6603.2368 2.3449146e+09 0.12151462 0.026523105 111.79467 23.734897 6606.1815 2.1963848e+09 0.11990153 0.027177809 111.85824 23.578881 6609.1262 2.0543722e+09 0.11546126 0.023743429 111.92022 23.437010 6612.0710 1.9289668e+09 0.11145233 0.024267730 111.98184 23.298352 6615.0157 1.8332553e+09 0.10952028 0.023252015 112.03901 23.159695 6617.9604 1.7493613e+09 0.10797169 0.023757676 112.09550 23.021037 6620.9052 1.6557560e+09 0.10725542 0.025058883 112.16381 22.871741 6623.8499 1.5605086e+09 0.10556257 0.024806696 112.23071 22.723716 6626.7946 1.4599966e+09 0.10405581 0.025578485 112.28720 22.585058 6629.7393 1.3768841e+09 0.10290360 0.025975428 112.34369 22.446396 6632.6841 1.3111314e+09 0.10108267 0.026114372 112.40019 22.307719 6635.6288 1.2444934e+09 0.099326881 0.026494087 112.45877 22.163929 6638.5735 1.1766507e+09 0.097995193 0.025646655 112.52232 22.007937 6641.5183 1.1089941e+09 0.098619108 0.025150060 112.58189 21.861730 6644.4630 1.0507974e+09 0.097602204 0.025393647 112.63838 21.723071 6647.4077 1.0072611e+09 0.096107588 0.026652454 112.69487 21.584413 6650.3525 9.6661900e+08 0.094905182 0.026335926 112.75136 21.445755 6653.2972 9.2082901e+08 0.094079336 0.027677399 112.81258 21.299353 6656.2419 8.7148507e+08 0.091747985 0.028235756 112.87613 21.149138 6659.1867 8.3161637e+08 0.089377823 0.031795661 112.93306 21.009761 6662.1314 7.9448641e+08 0.087280856 0.032970554 112.98956 20.871085 6665.0761 7.5782658e+08 0.085973525 0.028422405 113.05305 20.715227 6668.0209 7.1959099e+08 0.084851777 0.027489226 113.11476 20.565106 6670.9656 6.8193555e+08 0.083856825 0.026881294 113.17125 20.431584 6673.9103 6.5148183e+08 0.082523346 0.028820657 113.22815 20.291003 6676.8550 6.2143926e+08 0.079218538 0.032264794 113.28592 20.135011 6679.7998 5.9428855e+08 0.078726952 0.029606874 113.34295 19.992123 6682.7445 5.6628881e+08 0.079667518 0.030993373 113.39944 19.858601 6685.6892 5.4168631e+08 0.079366873 0.033432841 113.45674 19.710788 6688.6340 5.1410217e+08 0.076150444 0.033931531 113.51452 19.554795 6691.5787 4.8728148e+08 0.074669092 0.032864728 113.57114 19.419125 6694.5234 4.6654968e+08 0.073693546 0.030527414 113.62763 19.285585 6697.4682 4.4547551e+08 0.073137148 0.030150512 113.68536 19.130531 6700.4129 4.2632891e+08 0.071078460 0.030973971 113.74284 18.979647 6703.3576 4.0620838e+08 0.070281427 0.034570117 113.79933 18.846124 6706.3024 3.8861929e+08 0.070232119 0.038972624 113.85618 18.706308 6709.2471 3.7328733e+08 0.069356252 0.040975386 113.91396 18.550314 6712.1918 3.5454357e+08 0.066759172 0.042186093 113.97173 18.397494 6715.1365 3.3725208e+08 0.064137990 0.047518242 114.02951 18.247279 6718.0813 3.2302367e+08 0.061287773 0.049938994 114.08203 18.110711 6721.0260 3.0870537e+08 0.060516927 0.050311735 114.13340 17.977171 6723.9707 2.9836333e+08 0.058305040 0.049910341 114.19034 17.824066 6726.9155 2.8540365e+08 0.053763915 0.040959624 114.24893 17.668886 6729.8602 2.7356265e+08 0.052561935 0.040472083 114.31248 17.518671 6732.8049 2.5979989e+08 0.050556211 0.043888394 114.37367 17.368456 6735.7497 2.4524318e+08 0.051177807 0.050089253 114.43144 17.218239 6738.6944 2.3566261e+08 0.052533340 0.061144037 114.48486 17.079356 6741.6391 2.2563396e+08 0.050539536 0.067581506 114.53622 16.945834 6744.5839 2.1724062e+08 0.045042930 0.078245008 114.58804 16.800099 6747.5286 2.0472789e+08 0.040341069 0.067179190 114.64007 16.649883 6750.4733 1.9347367e+08 0.037813488 0.072812336 114.69782 16.499668 6753.4180 1.8483222e+08 0.034774343 0.074330163 114.75559 16.347894 6756.3628 1.7692599e+08 0.031677182 0.075100387 114.81337 16.191901 6759.3075 1.7162951e+08 0.032005869 0.075894161 114.87115 16.039010 6762.2522 1.6349391e+08 0.036258966 0.077643963 114.92894 15.888772 6765.1970 1.5773673e+08 0.039886984 0.079567150 114.98671 15.738553 6768.1417 1.4930562e+08 0.037329460 0.081365896 115.04404 15.588338 6771.0864 1.4291140e+08 0.031412108 0.089514774 115.09603 15.438123 6774.0312 1.3767842e+08 0.026081717 0.096657041 115.15003 15.287908 6776.9759 1.3073855e+08 0.020781349 0.10379931 115.20781 15.137693 6779.9206 1.2590814e+08 0.015448254 0.11094157 115.26203 14.987477 6782.8654 1.2143227e+08 0.010105773 0.11808384 115.31402 14.837261 6785.8101 1.1966855e+08 0.0047226715 0.12522611 115.37113 14.692160 6788.7548 1.1676542e+08 -0.00064074201 0.13236838 115.42802 14.546831 6791.6995 1.1396243e+08 -0.0060042871 0.13951064 115.48002 14.396616 6794.6443 1.0867144e+08 -0.011336207 0.14665291 115.53796 14.237314 6797.5890 1.0204857e+08 -0.016650389 0.15379518 115.60399 14.065636 6800.5337 98161707. -0.021995729 0.16093744 115.65726 13.913466 6803.4785 91818671. -0.027320125 0.16807971 115.71029 13.763251 6806.4232 87872508. -0.032657711 0.17522198 115.76806 13.613035 6809.3679 85721161. -0.037971671 0.18236424 115.82326 13.465393 6812.3127 82153673. -0.043236629 0.18950651 115.87526 13.320934 6815.2574 83646618. -0.048462714 0.19664878 115.93259 13.156969 6818.2021 82461245. -0.053663052 0.20379105 115.99168 12.989631 6821.1469 81035794. -0.058860196 0.21093331 116.04946 12.839416 6824.0916 79181758. -0.064054461 0.21807558 116.10801 12.682197 6827.0363 75889695. -0.069253041 0.22521785 116.16743 12.517122 6829.9810 72478653. -0.074448841 0.23236011 116.21975 12.366265 6832.9258 67588516. -0.079655881 0.23950238 116.27343 12.211198 6835.8705 66616502. -0.084828587 0.24664465 116.33286 12.039520 6838.8152 66556033. -0.089984515 0.25378692 116.38700 11.887225 6841.7600 66356672. -0.095133150 0.26092918 116.43900 11.742787 6844.7047 68248201. -0.10025228 0.26807145 116.49828 11.571635 6847.6494 62058237. -0.10547447 0.27521372 116.55771 11.403035 6850.5942 59176197. -0.11065004 0.28235598 116.61714 11.237960 6853.5389 56086052. -0.11582863 0.28949825 116.66949 11.087028 6856.4836 54607364. -0.12097422 0.29664052 116.72313 10.933530 6859.4284 58102739. -0.12599943 0.30378278 116.78256 10.768455 6862.3731 55995190. -0.13114555 0.31092505 116.84198 10.598715 6865.3178 54942048. -0.13626450 0.31806732 116.90141 10.428305 6868.2625 49713086. -0.14149518 0.32520959 116.96084 10.263230 6871.2073 46411515. -0.14668223 0.33235185 117.02027 10.098155 6874.1520 44538625. -0.15181213 0.33949412 117.07969 9.9320025 6877.0967 42856865. -0.15691942 0.34663639 117.13912 9.7603232 6880.0415 43547093. -0.16191388 0.35377865 117.19426 9.5929276 6882.9862 42145767. -0.16698635 0.36092092 117.24797 9.4278524 6885.9309 41301013. -0.17204111 0.36806319 117.30740 9.2627763 6888.8757 41779993. -0.17704808 0.37520545 117.36683 9.0977016 6891.8204 42852068. -0.18204185 0.38234772 117.42625 8.9319326 6894.7651 41121096. -0.18715376 0.38948999 117.48568 8.7602532 6897.7099 38860701. -0.19230741 0.39663226 117.54641 8.5762193 6900.6546 37241846. -0.19745570 0.40377452 117.60739 8.3916816 6903.5993 36176517. -0.20259851 0.41091679 117.66682 8.2266055 6906.5441 36619880. -0.20768072 0.41805906 117.72110 8.0615525 6909.4888 33964990. -0.21298009 0.42520132 117.77827 7.8892464 6912.4335 32307023. -0.21827876 0.43234359 117.84760 7.6966518 6915.3782 32061587. -0.22352668 0.43948586 117.90738 7.5306275 6918.3230 32365958. -0.22879015 0.44662812 117.96779 7.3531421 6921.2677 32765286. -0.23412361 0.45377039 118.02908 7.1647562 6924.2124 33940682. -0.23948745 0.46091266 118.08851 6.9996823 6927.1572 32839062. -0.24527672 0.46805493 118.14935 6.8170378 6930.1019 30901168. -0.25157641 0.47519719 118.21360 6.6244443 6933.0466 31157279. -0.25815676 0.48233946 118.28261 6.4318527 6935.9914 29178551. -0.26719802 0.48948173 118.34424 6.2392582 6938.9361 30655095. -0.29010881 0.49662399 118.40423 6.0671440 6941.8808 32276233. -0.27938772 0.50376626 118.46416 5.8957537 6944.8256 33108784. -0.25371074 0.51090853 118.52577 5.7031991