# # 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 = 55.631142 km # Date (UTC) = 2014-12-26T09:45:05.161 # Date (julian) = 2457017.90630973 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6500.7989 5.0676185e+10 0.044395105 0.032524103 -26.736763 49.183758 6502.8837 4.7111946e+10 0.052473688 0.033152789 -26.831297 49.096496 6504.9686 4.4592083e+10 0.061118089 0.033781475 -26.934061 49.001637 6507.0535 4.1238847e+10 0.069824684 0.034410162 -27.040413 48.903467 6509.1383 3.7887239e+10 0.078758329 0.035038848 -27.142876 48.808041 6511.2232 3.4569483e+10 0.087903412 0.035667534 -27.233774 48.720779 6513.3081 3.2001177e+10 0.097668862 0.036296220 -27.324672 48.633516 6515.3929 3.0314911e+10 0.10827253 0.036924907 -27.417398 48.544425 6517.4778 2.8532658e+10 0.11920109 0.037553593 -27.511944 48.453515 6519.5627 2.6506349e+10 0.13028849 0.038182279 -27.606490 48.362605 6521.6475 2.4518444e+10 0.14168574 0.038810965 -27.698295 48.274436 6523.7324 2.2812219e+10 0.14853494 0.039360636 -27.789193 48.187173 6525.8173 2.1338497e+10 0.15396479 0.039688942 -27.880078 48.099911 6527.9021 2.0027553e+10 0.16003319 0.041371433 -27.967350 48.012649 6529.9870 1.8901058e+10 0.16530011 0.043807993 -28.054612 47.925388 6532.0719 1.7759215e+10 0.16912938 0.046744231 -28.142786 47.837215 6534.1567 1.6495975e+10 0.17107807 0.047988403 -28.233684 47.746317 6536.2416 1.5453109e+10 0.17191741 0.048006672 -28.324582 47.655420 6538.3265 1.4350534e+10 0.17350458 0.049315656 -28.413666 47.566335 6540.4113 1.3559514e+10 0.17363060 0.051048430 -28.500940 47.479061 6542.4962 1.2871475e+10 0.17192314 0.051190626 -28.588213 47.391786 6544.5811 1.2063427e+10 0.17019489 0.052115727 -28.675478 47.301793 6546.6659 1.1441631e+10 0.16827789 0.053012490 -28.762740 47.210895 6548.7508 1.0774281e+10 0.16644324 0.053891864 -28.849993 47.120007 6550.8357 1.0239081e+10 0.16499384 0.055194606 -28.933628 47.032736 6552.9205 9.6202675e+09 0.16394723 0.055355066 -29.017254 46.945475 6555.0054 8.9103629e+09 0.16253666 0.054848817 -29.100880 46.857306 6557.0903 8.2742368e+09 0.16067747 0.053809519 -29.184505 46.766408 6559.1751 7.7364207e+09 0.15840845 0.052367412 -29.268131 46.675510 6561.2600 7.4663571e+09 0.15598923 0.051244551 -29.351763 46.586422 6563.3449 7.0680465e+09 0.15392279 0.049529417 -29.435401 46.499147 6565.4298 6.5795411e+09 0.15213493 0.047830410 -29.519039 46.411873 6567.5146 6.1136643e+09 0.15073407 0.046182065 -29.602667 46.321884 6569.5995 5.7121707e+09 0.14936809 0.044891442 -29.686293 46.230986 6571.6844 5.4554813e+09 0.14782727 0.044316365 -29.769926 46.140079 6573.7692 5.1868396e+09 0.14561928 0.043040201 -29.859903 46.041925 6575.8541 4.8301334e+09 0.14369154 0.041517790 -29.949893 45.943754 6577.9390 4.5035275e+09 0.14158024 0.038745501 -30.036356 45.849615 6580.0238 4.2508929e+09 0.13906033 0.036498737 -30.119981 45.758717 6582.1087 4.0522152e+09 0.13630505 0.035264217 -30.203607 45.667819 6584.1936 3.9047522e+09 0.13348261 0.034410073 -30.284310 45.579844 6586.2784 3.6966489e+09 0.13125176 0.033167697 -30.364301 45.492581 6588.3633 3.5036328e+09 0.12970455 0.033258608 -30.444097 45.405123 6590.4482 3.3161025e+09 0.12782246 0.030228419 -30.520461 45.314213 6592.5330 3.1635616e+09 0.12588901 0.027555794 -30.596825 45.223303 6594.6179 3.0153431e+09 0.12385669 0.025833329 -30.674290 45.133501 6596.7028 2.8654048e+09 0.12157521 0.025724079 -30.754281 45.046238 6598.7876 2.7449279e+09 0.11985734 0.025031123 -30.834272 44.958976 6600.8725 2.6190890e+09 0.11988483 0.026783568 -30.912250 44.869701 6602.9574 2.5013310e+09 0.11906710 0.026699656 -30.988604 44.778804 6605.0422 2.3888552e+09 0.11833631 0.026700473 -31.064957 44.687906 6607.1271 2.2880685e+09 0.11700461 0.025456020 -31.141312 44.599928 6609.2120 2.1949669e+09 0.11393500 0.023768896 -31.217667 44.512667 6611.2968 2.1076348e+09 0.11107254 0.024769163 -31.294022 44.425213 6613.3817 2.0171271e+09 0.10996545 0.023713638 -31.370386 44.334304 6615.4666 1.9348492e+09 0.10837329 0.023265887 -31.446750 44.243394 6617.5514 1.8554761e+09 0.10711111 0.023622077 -31.524762 44.150286 6619.6363 1.7734501e+09 0.10614396 0.024679444 -31.606572 44.052114 6621.7212 1.6858476e+09 0.10479364 0.024850411 -31.688381 43.953942 6623.8060 1.5998550e+09 0.10270344 0.024790451 -31.765510 43.862011 6625.8909 1.5204686e+09 0.10125494 0.026460724 -31.841864 43.771113 6627.9758 1.4465519e+09 0.099119784 0.025693737 -31.917827 43.680606 6630.0606 1.3853005e+09 0.097316180 0.025928451 -31.990545 43.593345 6632.1455 1.3280319e+09 0.095309701 0.026049793 -32.063264 43.506084 6634.2304 1.2798387e+09 0.093738861 0.026343647 -32.134686 43.417520 6636.3152 1.2381722e+09 0.092318312 0.026427330 -32.203777 43.326610 6638.4001 1.1936476e+09 0.091403630 0.025654210 -32.272868 43.235700 6640.4850 1.1460140e+09 0.091695573 0.025211314 -32.349684 43.140379 6642.5698 1.0876930e+09 0.091688767 0.025175016 -32.431494 43.042207 6644.6547 1.0312687e+09 0.090839142 0.025414367 -32.511825 42.945217 6646.7396 9.8088363e+08 0.089820749 0.026302979 -32.584544 42.854320 6648.8244 9.4210317e+08 0.088627628 0.027516174 -32.657262 42.763422 6650.9093 9.0589908e+08 0.088165554 0.026463406 -32.728482 42.672524 6652.9942 8.6565068e+08 0.087776842 0.027524062 -32.797563 42.581626 6655.0791 8.3067026e+08 0.086457527 0.027642881 -32.866645 42.490728 6657.1639 7.9548443e+08 0.084526740 0.029091253 -32.935728 42.402238 6659.2488 7.7033736e+08 0.082832957 0.031782701 -33.004811 42.314977 6661.3337 7.4517595e+08 0.081306751 0.032704887 -33.073894 42.227716 6663.4185 7.1676661e+08 0.079895788 0.032367230 -33.150860 42.126766 6665.5034 6.8721592e+08 0.079410026 0.027722308 -33.228591 42.024488 6667.5883 6.5691259e+08 0.078662870 0.027319535 -33.300581 41.929227 6669.6731 6.2987531e+08 0.077635961 0.027664356 -33.366028 41.841964 6671.7580 6.0687002e+08 0.077228199 0.026876150 -33.431474 41.754702 6673.8429 5.8758079e+08 0.076204631 0.028719776 -33.499527 41.664833 6675.9277 5.6950347e+08 0.073759022 0.031575295 -33.568609 41.573935 6678.0126 5.5264291e+08 0.072532811 0.030928190 -33.637691 41.483038 6680.0975 5.3029336e+08 0.072689937 0.029462462 -33.711167 41.385110 6682.1823 5.0910679e+08 0.073423005 0.030563850 -33.784796 41.286940 6684.2672 4.8944833e+08 0.073618447 0.032667651 -33.854154 41.192565 6686.3521 4.7453733e+08 0.072749104 0.033965921 -33.919601 41.101666 6688.4369 4.5994892e+08 0.070202956 0.033886049 -33.985048 41.010768 6690.5218 4.4090457e+08 0.068813374 0.033056065 -34.056816 40.914247 6692.6067 4.2373972e+08 0.067934328 0.032060843 -34.130456 40.816060 6694.6915 4.0518744e+08 0.067268645 0.030291804 -34.201414 40.720258 6696.7764 3.8927623e+08 0.066857252 0.029998365 -34.266861 40.629361 6698.8613 3.7853674e+08 0.065603699 0.031400009 -34.332307 40.538463 6700.9461 3.6397215e+08 0.063807472 0.031369495 -34.400114 40.441010 6703.0310 3.4903895e+08 0.063459081 0.033752818 -34.469651 40.338748 6705.1159 3.3185294e+08 0.063559768 0.036874603 -34.538647 40.238468 6707.2007 3.1544396e+08 0.063143003 0.040158070 -34.604094 40.151206 6709.2856 3.0484219e+08 0.062335329 0.040950883 -34.669541 40.063943 6711.3705 2.9826912e+08 0.060380916 0.041113731 -34.736550 39.970953 6713.4553 2.8906098e+08 0.058249329 0.045333499 -34.806089 39.868691 6715.5402 2.7473945e+08 0.056365989 0.047931099 -34.875628 39.766429 6717.6251 2.6567980e+08 0.054220306 0.049835605 -34.937931 39.678214 6719.7099 2.5428673e+08 0.052582102 0.050695340 -34.999749 39.590941 6721.7948 2.4618343e+08 0.052615568 0.050543380 -35.063012 39.500864 6723.8797 2.3573458e+08 0.050686236 0.049859556 -35.132551 39.398602 6725.9645 2.2438893e+08 0.046779350 0.040973513 -35.202090 39.296340 6728.0494 2.1509053e+08 0.046073965 0.039698136 -35.268591 39.197115 6730.1343 2.0741905e+08 0.044741225 0.040563019 -35.334038 39.098943 6732.2191 1.9960638e+08 0.043198625 0.043780554 -35.398403 39.002937 6734.3040 1.8916492e+08 0.042518965 0.049335308 -35.460213 38.912039 6736.3889 1.8320484e+08 0.044176895 0.051825207 -35.522023 38.821140 6738.4738 1.7628652e+08 0.045147223 0.059929314 -35.585824 38.726261 6740.5586 1.7112908e+08 0.044449695 0.065004667 -35.651272 38.628091 6742.6435 1.6495974e+08 0.041482523 0.070178729 -35.717139 38.529501 6744.7284 1.5954123e+08 0.037729751 0.078356776 -35.786678 38.427239 6746.8132 1.5497196e+08 0.033704079 0.069532664 -35.856217 38.324977 6748.8981 1.4976461e+08 0.033064948 0.071741779 -35.918283 38.232577 6750.9830 1.4545803e+08 0.030198648 0.073682569 -35.976466 38.145303 6753.0678 1.4197106e+08 0.027420785 0.073196782 -36.034648 38.058029 6755.1527 1.3811787e+08 0.025585400 0.074538400 -36.099427 37.960861 6757.2376 1.3510287e+08 0.023348841 0.076019127 -36.164874 37.862691 6759.3224 1.2940354e+08 0.024281201 0.075897761 -36.228426 37.762625 6761.4073 1.2488850e+08 0.025938175 0.078001875 -36.289783 37.660362 6763.4922 1.2142764e+08 0.030322158 0.077936654 -36.351215 37.558176 6765.5770 1.1750294e+08 0.032372387 0.079636532 -36.416663 37.460004 6767.6619 1.1356729e+08 0.030591519 0.081234613 -36.482110 37.361832 6769.7468 1.0731396e+08 0.026055656 0.086265493 -36.547558 37.261313 6771.8316 1.0295093e+08 0.022369658 0.091322213 -36.613005 37.159052 6773.9165 99842581. 0.018743016 0.096378933 -36.677924 37.057319 6776.0014 98420787. 0.015175854 0.10143565 -36.739282 36.959148 6778.0862 93138626. 0.011527274 0.10649237 -36.800639 36.860978 6780.1711 88798884. 0.0079030690 0.11154909 -36.861997 36.760007 6782.2560 85016793. 0.0042950145 0.11660581 -36.923355 36.657744 6784.3408 80542687. 0.00067000236 0.12166253 -36.984713 36.556463 6786.4257 78114634. -0.0028994108 0.12671926 -37.046069 36.458291 6788.5106 73946197. -0.0065298142 0.13177598 -37.107425 36.360119 6790.5954 72433161. -0.010091858 0.13683270 -37.168782 36.261947 6792.6803 71488242. -0.013653762 0.14188942 -37.230140 36.163775 6794.7652 70435271. -0.017248396 0.14694614 -37.291500 36.064165 6796.8500 67963723. -0.020923778 0.15200286 -37.352865 35.961888 6798.9349 66652648. -0.024613385 0.15705958 -37.414231 35.859611 6801.0198 65039043. -0.028381972 0.16211630 -37.475589 35.761055 6803.1046 62342104. -0.032297738 0.16717302 -37.536947 35.662885 6805.1895 60694860. -0.036319841 0.17222974 -37.600192 35.558242 6807.2744 57364952. -0.040684554 0.17728646 -37.665641 35.446043 6809.3592 56116812. -0.045326840 0.18234318 -37.729771 35.337046 6811.4441 51844787. -0.051092935 0.18739990 -37.791129 35.234784 6813.5290 48251523. -0.059329604 0.19245662 -37.852487 35.132522 6815.6138 46181330. -0.087588204 0.19751334 -37.910254 35.033851 6817.6987 45112081. -0.072044885 0.20257006 -37.967520 34.935681 6819.7836 47603954. -0.033549167 0.20762678 -38.028328 34.831438