# # 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 = 51.357175 km # Date (UTC) = 2011-11-19T09:49:40.711 # Date (julian) = 2455884.90949897 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6497.0540 2.6254897e+11 0.044608792 0.031394848 -22.731344 60.806169 6499.2633 2.2503790e+11 0.052191023 0.032061067 -22.939412 60.692225 6501.4727 1.9028938e+11 0.059546808 0.032727286 -23.175400 60.558342 6503.6820 1.5935051e+11 0.066680920 0.033393504 -23.415189 60.421479 6505.8913 1.3264751e+11 0.073632282 0.034059723 -23.618304 60.307537 6508.1007 1.1224488e+11 0.080534571 0.034725941 -23.821141 60.193316 6510.3100 9.7602148e+10 0.087682753 0.035392160 -24.019301 60.074419 6512.5193 8.5286583e+10 0.095232087 0.036058378 -24.217275 59.955708 6514.7287 7.5539049e+10 0.10349157 0.036724597 -24.410482 59.841766 6516.9380 6.7004678e+10 0.11251676 0.037390816 -24.604304 59.727351 6519.1473 5.9004075e+10 0.12224204 0.038057034 -24.829718 59.588636 6521.3567 5.1911636e+10 0.13278209 0.038723253 -25.044395 59.455647 6523.5660 4.5724738e+10 0.13973369 0.039319392 -25.232648 59.336750 6525.7753 4.0963117e+10 0.14524346 0.039693729 -25.420901 59.217853 6527.9847 3.7222770e+10 0.15194169 0.041431345 -25.609153 59.098955 6530.1940 3.3983787e+10 0.15812082 0.044100280 -25.796157 58.980059 6532.4033 3.1076990e+10 0.16371406 0.047021126 -25.979457 58.861163 6534.6127 2.8569227e+10 0.16792462 0.048115941 -26.161600 58.742267 6536.8220 2.6381485e+10 0.17034472 0.048525957 -26.339944 58.623370 6539.0313 2.4312729e+10 0.17111765 0.049681545 -26.524662 58.500224 6541.2407 2.2230254e+10 0.17024211 0.051248485 -26.732696 58.361536 6543.4500 2.0221195e+10 0.16819736 0.051499995 -26.923956 58.232431 6545.6593 1.8407982e+10 0.16619966 0.052461474 -27.097346 58.113534 6547.8687 1.6918270e+10 0.16492183 0.053617699 -27.270737 57.994638 6550.0780 1.5667367e+10 0.16378718 0.055004887 -27.444127 57.875743 6552.2873 1.4524536e+10 0.16236583 0.055514447 -27.615303 57.754632 6554.4967 1.3489823e+10 0.16067969 0.054842802 -27.783739 57.630781 6556.7060 1.2548439e+10 0.15910765 0.053909332 -27.950052 57.509053 6558.9153 1.1684156e+10 0.15709667 0.052459337 -28.113535 57.390156 6561.1247 1.0885370e+10 0.15498351 0.051311253 -28.277018 57.269228 6563.3340 1.0170324e+10 0.15317156 0.049542018 -28.440501 57.145378 6565.5433 9.5138210e+09 0.15138844 0.047701447 -28.603985 57.023467 6567.7527 8.9050018e+09 0.15014594 0.045980798 -28.767467 56.904571 6569.9620 8.3465641e+09 0.14908191 0.044915035 -28.929102 56.783829 6572.1713 7.8212029e+09 0.14760245 0.044132044 -29.087630 56.659979 6574.3807 7.3429012e+09 0.14545746 0.042672177 -29.246159 56.536128 6576.5900 6.9143536e+09 0.14323156 0.040692304 -29.404688 56.412277 6578.7993 6.5160849e+09 0.14029001 0.037387391 -29.561553 56.290090 6581.0087 6.1582866e+09 0.13744335 0.035593988 -29.715127 56.171193 6583.2180 5.8173308e+09 0.13493873 0.034911330 -29.868701 56.050725 6585.4273 5.4938306e+09 0.13218392 0.033629139 -30.022275 55.926874 6587.6367 5.1854794e+09 0.13002163 0.033299428 -30.174371 55.803024 6589.8460 4.8890325e+09 0.12799103 0.031367613 -30.322992 55.679173 6592.0553 4.6137059e+09 0.12579432 0.028019792 -30.471613 55.555323 6594.2647 4.3635998e+09 0.12370955 0.026027241 -30.620233 55.431473 6596.4740 4.1301852e+09 0.12127903 0.025725119 -30.767558 55.307622 6598.6833 3.9099411e+09 0.11955799 0.025080924 -30.911225 55.183772 6600.8927 3.6975776e+09 0.11953109 0.026825008 -31.054892 55.059921 6603.1020 3.4977106e+09 0.11862202 0.026602897 -31.198558 54.936071 6605.3113 3.3154366e+09 0.11791817 0.026926217 -31.341113 54.812220 6607.5207 3.1398304e+09 0.11622580 0.024678898 -31.479826 54.688370 6609.7300 2.9697413e+09 0.11314842 0.023922772 -31.618538 54.564520 6611.9393 2.8067748e+09 0.11054418 0.024359447 -31.757251 54.440669 6614.1487 2.6526015e+09 0.10939182 0.023838075 -31.895964 54.316818 6616.3580 2.5080095e+09 0.10768069 0.023338485 -32.034677 54.192968 6618.5673 2.3747310e+09 0.10673560 0.024199190 -32.172554 54.069118 6620.7767 2.2455812e+09 0.10561845 0.025017474 -32.306311 53.945268 6622.9860 2.1271484e+09 0.10376632 0.024495556 -32.440068 53.820674 6625.1953 2.0214121e+09 0.10182455 0.025630680 -32.573827 53.691870 6627.4047 1.9173782e+09 0.099316348 0.025473122 -32.706934 53.563718 6629.6140 1.8111055e+09 0.097612439 0.025998094 -32.835740 53.439867 6631.8233 1.7131946e+09 0.095233901 0.026014398 -32.962726 53.317766 6634.0327 1.6306990e+09 0.093120944 0.026329225 -33.075427 53.209399 6636.2420 1.5651191e+09 0.091198629 0.026455779 -33.188128 53.101032 6638.4513 1.5096774e+09 0.089936734 0.025651979 -33.313808 52.980186 6640.6607 1.4446694e+09 0.090303097 0.025189820 -33.442614 52.856335 6642.8700 1.3769976e+09 0.090173115 0.025187298 -33.571418 52.728583 6645.0793 1.3110036e+09 0.089273874 0.025488843 -33.700222 52.599778 6647.2887 1.2488139e+09 0.088148242 0.026589757 -33.825217 52.474782 6649.4980 1.1887089e+09 0.087190394 0.026947238 -33.949068 52.350932 6651.7073 1.1326547e+09 0.086738651 0.027026224 -34.069202 52.223365 6653.9167 1.0794725e+09 0.086070912 0.027993672 -34.188099 52.094562 6656.1260 1.0292014e+09 0.084221856 0.028133995 -34.310620 51.969383 6658.3353 9.8328517e+08 0.082620472 0.030655775 -34.434470 51.845532 6660.5447 9.3861892e+08 0.081061999 0.032121060 -34.554787 51.721682 6662.7540 8.9732624e+08 0.079601430 0.032621241 -34.673682 51.597832 6664.9633 8.5808148e+08 0.078721101 0.028681344 -34.789138 51.470539 6667.1727 8.1859293e+08 0.078099323 0.027166876 -34.903081 51.341733 6669.3820 7.7864297e+08 0.076877238 0.027963377 -35.020372 51.216277 6671.5913 7.4276735e+08 0.076629172 0.026873775 -35.139269 51.092427 6673.8007 7.0613032e+08 0.075723938 0.028656651 -35.254909 50.965320 6676.0100 6.7660377e+08 0.073195562 0.031720160 -35.368851 50.836517 6678.2193 6.4669115e+08 0.071923244 0.030789924 -35.479629 50.710878 6680.4287 6.1614706e+08 0.072080793 0.029533980 -35.588617 50.587028 6682.6380 5.8848029e+08 0.072513027 0.030911988 -35.691843 50.470092 6684.8473 5.6414570e+08 0.072286203 0.032697090 -35.791540 50.357390 6687.0567 5.4715808e+08 0.070511185 0.034311305 -35.894148 50.239643 6689.2660 5.3023459e+08 0.067824215 0.033776595 -36.003138 50.110839 6691.4753 5.1214403e+08 0.066910444 0.032889119 -36.112127 49.983494 6693.6847 4.9068540e+08 0.066001623 0.031369211 -36.221114 49.859644 6695.8940 4.6975409e+08 0.065790294 0.029695259 -36.330101 49.734425 6698.1033 4.4859431e+08 0.064972936 0.030359633 -36.439090 49.605620 6700.3127 4.2758593e+08 0.063270381 0.030899620 -36.546802 49.478091 6702.5220 4.0817708e+08 0.062128448 0.033293537 -36.650836 49.354241 6704.7313 3.9048423e+08 0.062363987 0.036536669 -36.754870 49.229207 6706.9407 3.7666005e+08 0.061958762 0.040083534 -36.858904 49.100403 6709.1500 3.5888527e+08 0.061242025 0.041037146 -36.962938 48.971600 6711.3593 3.4392281e+08 0.059267770 0.041101037 -37.066974 48.842795 6713.5687 3.2532787e+08 0.057022917 0.045743311 -37.170009 48.714991 6715.7780 3.0905151e+08 0.055023085 0.048174288 -37.269088 48.591141 6717.9873 2.9696615e+08 0.052740867 0.049813198 -37.368167 48.466382 6720.1967 2.8301371e+08 0.051502586 0.050396981 -37.467248 48.337577 6722.4060 2.7791434e+08 0.050991126 0.050103303 -37.566328 48.208772 6724.6153 2.6678650e+08 0.047338472 0.044788371 -37.665409 48.079968 6726.8247 2.5652512e+08 0.044531184 0.040958805 -37.764490 47.951889 6729.0340 2.4497910e+08 0.043878091 0.041022777 -37.863570 47.828039 6731.2433 2.3124313e+08 0.041713385 0.042234270 -37.962651 47.703556 6733.4526 2.2470635e+08 0.040273620 0.046381875 -38.061732 47.574750 6735.6620 2.1492389e+08 0.041019661 0.049996176 -38.160273 47.445944 6737.8713 2.0613653e+08 0.042261032 0.056911165 -38.254398 47.317140 6740.0806 1.9796532e+08 0.041925435 0.064188137 -38.348524 47.188337 6742.2900 1.8921734e+08 0.039157909 0.069317348 -38.442649 47.059532 6744.4993 1.8058691e+08 0.034666435 0.078179620 -38.536775 46.931083 6746.7086 1.7220671e+08 0.030768473 0.070748438 -38.630902 46.807233 6748.9180 1.6467548e+08 0.029502518 0.071846437 -38.724765 46.683118 6751.1273 1.5705817e+08 0.026143191 0.073765501 -38.813937 46.554314 6753.3366 1.5100522e+08 0.023355059 0.074066747 -38.903828 46.424763 6755.5460 1.4610395e+08 0.021081559 0.074365967 -39.013624 46.274515 6757.7553 1.4117717e+08 0.019634376 0.074447875 -39.117142 46.132302 6759.9646 1.3732776e+08 0.020385835 0.076052740 -39.206314 46.008451 6762.1740 1.3144118e+08 0.024198325 0.077770197 -39.295486 45.883185 6764.3833 1.2405185e+08 0.027069001 0.079501649 -39.384659 45.754382 6766.5926 1.1899978e+08 0.027895876 0.081054329 -39.472507 45.625578 6768.8020 1.1339150e+08 0.023541952 0.083741745 -39.556724 45.496775 6771.0113 1.1014019e+08 0.019569154 0.089332584 -39.642174 45.367971 6773.2206 1.0797808e+08 0.015834482 0.094691189 -39.731346 45.239166 6775.4300 1.0423096e+08 0.012039288 0.10004979 -39.819379 45.111501 6777.6393 1.0031996e+08 0.0082580076 0.10540840 -39.903598 44.987650 6779.8486 94854212. 0.0043951479 0.11076700 -39.990786 44.858210 6782.0580 89773617. 0.00057185684 0.11612561 -40.089044 44.707934 6784.2673 84756231. -0.0032374259 0.12148421 -40.180543 44.567994 6786.4766 81354887. -0.0069342681 0.12684282 -40.264762 44.439188 6788.6860 76611620. -0.010760980 0.13220142 -40.348980 44.310384 6790.8953 70800190. -0.014757072 0.13756002 -40.433197 44.181581 6793.1046 66355653. -0.018764537 0.14291863 -40.517416 44.054978 6795.3140 63005314. -0.022842679 0.14827723 -40.601635 43.931127 6797.5233 63552566. -0.026734199 0.15363584 -40.689369 43.796027 6799.7326 64613328. -0.030863562 0.15899444 -40.781847 43.645750 6801.9420 63503273. -0.035671600 0.16435305 -40.865134 43.510408 6804.1513 60175551. -0.041588790 0.16971165 -40.944399 43.381604 6806.3606 55302760. -0.049581700 0.17507026 -41.032608 43.238264 6808.5700 50742815. -0.062546464 0.18042886 -41.125086 43.087989 6810.7793 50970818. -0.11134430 0.18578746 -41.205052 42.962734 6812.9886 53364305. -0.076168195 0.19114607 -41.284316 42.838884 6815.1980 54994857. -0.0060882459 0.19650467 -41.363580 42.710434