# # 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 = 55.053456 km # Date (UTC) = 2011-12-02T10:20:40.185 # Date (julian) = 2455897.93102065 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6492.6189 3.0648781e+11 0.030669368 0.030057473 -37.148811 52.286157 6494.8146 2.6672139e+11 0.038362454 0.030719558 -37.259869 52.194246 6497.0102 2.3530578e+11 0.045687929 0.031381644 -37.370927 52.102336 6499.2058 2.0494579e+11 0.052739119 0.032043729 -37.488181 52.000194 6501.4015 1.7724957e+11 0.059491525 0.032705815 -37.608799 51.892500 6503.5971 1.5130582e+11 0.066026291 0.033367900 -37.729416 51.786214 6505.7927 1.2884545e+11 0.072463267 0.034029986 -37.850036 51.682828 6507.9883 1.0992517e+11 0.078936885 0.034692071 -37.970655 51.579420 6510.1840 9.4012983e+10 0.085655673 0.035354156 -38.091272 51.471724 6512.3796 8.1294204e+10 0.092902727 0.036016242 -38.211889 51.364030 6514.5752 7.0976707e+10 0.10097873 0.036678327 -38.329560 51.256335 6516.7708 6.2535591e+10 0.11013833 0.037340413 -38.445871 51.148640 6518.9665 5.5608212e+10 0.12052352 0.038002498 -38.562181 51.040946 6521.1621 4.9731534e+10 0.13222682 0.038664584 -38.678491 50.933251 6523.3577 4.4632374e+10 0.14131514 0.039267774 -38.794801 50.825735 6525.5534 4.0178924e+10 0.14876789 0.039719062 -38.911112 50.722347 6527.7490 3.6255377e+10 0.15657582 0.041260239 -39.027422 50.618959 6529.9446 3.3023111e+10 0.16431590 0.043740458 -39.131680 50.521078 6532.1402 3.0463561e+10 0.17033584 0.046801340 -39.231249 50.425338 6534.3359 2.8318489e+10 0.17323146 0.048038510 -39.332168 50.328300 6536.5315 2.6280492e+10 0.17341514 0.048266036 -39.444171 50.220606 6538.7271 2.4180044e+10 0.17268629 0.049510747 -39.556174 50.112911 6540.9227 2.2011732e+10 0.17098452 0.051290029 -39.664785 50.005217 6543.1184 1.9990399e+10 0.16908443 0.051412959 -39.772480 49.897522 6545.3140 1.8206913e+10 0.16735721 0.052458380 -39.880175 49.789827 6547.5096 1.6660718e+10 0.16573590 0.053481164 -39.987869 49.682133 6549.7052 1.5360161e+10 0.16432947 0.054684984 -40.095563 49.574439 6551.9009 1.4138250e+10 0.16306940 0.055551972 -40.203258 49.466744 6554.0965 1.3058507e+10 0.16115990 0.054834405 -40.310953 49.359049 6556.2921 1.2143114e+10 0.15957911 0.053970177 -40.408796 49.261206 6558.4878 1.1433206e+10 0.15794727 0.052823677 -40.504523 49.165479 6560.6834 1.0861579e+10 0.15569921 0.051658152 -40.601870 49.067221 6562.8790 1.0305915e+10 0.15366065 0.050043494 -40.705256 48.959526 6565.0746 9.7148393e+09 0.15169178 0.048233647 -40.808642 48.851831 6567.2703 9.0992898e+09 0.14982777 0.046388673 -40.912043 48.744122 6569.4659 8.5112461e+09 0.14815043 0.044882747 -41.015446 48.636412 6571.6615 7.9564700e+09 0.14665448 0.044322602 -41.118839 48.528711 6573.8571 7.4533812e+09 0.14429023 0.042969644 -41.222224 48.421016 6576.0528 6.9861707e+09 0.14186256 0.041310654 -41.324543 48.313322 6578.2484 6.5216441e+09 0.13906157 0.038257366 -41.423622 48.205627 6580.4440 6.0900026e+09 0.13620265 0.036110410 -41.522701 48.097932 6582.6397 5.7050819e+09 0.13394364 0.035119728 -41.611581 48.001324 6584.8353 5.3963530e+09 0.13199977 0.034060503 -41.699649 47.905597 6587.0309 5.1361199e+09 0.13030230 0.033165217 -41.791183 47.806104 6589.2265 4.8756218e+09 0.12860305 0.032596558 -41.890264 47.698409 6591.4222 4.6127083e+09 0.12646420 0.028725553 -41.989341 47.590714 6593.6178 4.3485892e+09 0.12451419 0.026527867 -42.084143 47.483020 6595.8134 4.0999594e+09 0.12207337 0.025707924 -42.178913 47.375326 6598.0090 3.8568080e+09 0.12037358 0.025402849 -42.276578 47.267631 6600.2047 3.6212809e+09 0.11990134 0.025410632 -42.375657 47.159936 6602.4003 3.4067699e+09 0.11939290 0.027175039 -42.469538 47.056433 6604.5959 3.2345898e+09 0.11828244 0.026425114 -42.553789 46.960694 6606.7915 3.0930724e+09 0.11724626 0.026081578 -42.638040 46.864954 6608.9872 2.9617778e+09 0.11404555 0.023706270 -42.726884 46.757191 6611.1828 2.8267840e+09 0.11097236 0.024841883 -42.817347 46.645190 6613.3784 2.6871938e+09 0.10975562 0.023712437 -42.909611 46.534988 6615.5741 2.5469111e+09 0.10809234 0.023269194 -43.004383 46.427294 6617.7697 2.4214338e+09 0.10688014 0.023694435 -43.098738 46.319599 6619.9653 2.2935500e+09 0.10588816 0.024758827 -43.189201 46.211905 6622.1609 2.1716662e+09 0.10420982 0.024715157 -43.279664 46.104211 6624.3566 2.0565773e+09 0.10199396 0.025053176 -43.370127 45.996516 6626.5522 1.9465085e+09 0.099910267 0.025887363 -43.460590 45.888821 6628.7478 1.8483321e+09 0.098035990 0.026006716 -43.551054 45.781127 6630.9434 1.7438755e+09 0.096097573 0.025930627 -43.641518 45.673432 6633.1391 1.6488645e+09 0.094756938 0.026176533 -43.730144 45.567323 6635.3347 1.5660411e+09 0.093417400 0.026449981 -43.806724 45.471596 6637.5303 1.5018276e+09 0.092236217 0.025901675 -43.883304 45.375870 6639.7260 1.4497357e+09 0.091842860 0.025368603 -43.964879 45.271656 6641.9216 1.3911970e+09 0.092137935 0.025151430 -44.051048 45.159636 6644.1172 1.3255814e+09 0.091172099 0.025356274 -44.137215 45.048480 6646.3128 1.2604148e+09 0.090207691 0.026082079 -44.223371 44.940785 6648.5085 1.2015512e+09 0.089086623 0.027304648 -44.309527 44.833091 6650.7041 1.1467274e+09 0.088480648 0.026416422 -44.395682 44.725397 6652.8997 1.0966693e+09 0.087976949 0.027498068 -44.481838 44.617702 6655.0953 1.0390949e+09 0.086685139 0.027649611 -44.567994 44.510008 6657.2910 9.8691518e+08 0.084719296 0.029238623 -44.654150 44.402314 6659.4866 9.3909009e+08 0.083090271 0.031733095 -44.739290 44.294619 6661.6822 8.9532860e+08 0.081499338 0.032882419 -44.821138 44.186924 6663.8778 8.5797334e+08 0.079890436 0.032239940 -44.902986 44.079229 6666.0735 8.1729661e+08 0.079707730 0.026922912 -44.984833 43.967597 6668.2691 7.8040417e+08 0.078604283 0.027708910 -45.066680 43.855595 6670.4647 7.4458807e+08 0.077971508 0.027113331 -45.148528 43.746148 6672.6604 7.1048914e+08 0.077375333 0.027262353 -45.230377 43.638453 6674.8560 6.7864677e+08 0.075703105 0.029676868 -45.312225 43.530759 6677.0516 6.4812874e+08 0.073228106 0.032284851 -45.394072 43.423064 6679.2472 6.1744983e+08 0.072656504 0.030063467 -45.475919 43.315370 6681.4429 5.8802660e+08 0.073658547 0.029997116 -45.553674 43.207676 6683.6385 5.6204303e+08 0.074139140 0.032124294 -45.631214 43.099981 6685.8341 5.3785225e+08 0.073787397 0.033585870 -45.711470 42.992276 6688.0297 5.1551951e+08 0.071480094 0.033792056 -45.793330 42.884565 6690.2254 4.9475435e+08 0.069629126 0.033090036 -45.873861 42.776859 6692.4210 4.7434018e+08 0.068683496 0.032276450 -45.951401 42.669165 6694.6166 4.5758374e+08 0.067955763 0.030396796 -46.028941 42.561467 6696.8123 4.3629997e+08 0.067611389 0.030013259 -46.106481 42.449526 6699.0079 4.1549387e+08 0.066388175 0.031583163 -46.184021 42.337523 6701.2035 3.9676568e+08 0.064608367 0.031708045 -46.261561 42.228385 6703.3991 3.7821229e+08 0.064514486 0.034673989 -46.339101 42.120691 6705.5948 3.6180583e+08 0.064596245 0.037725967 -46.415162 42.012996 6707.7904 3.4624200e+08 0.064257129 0.040073605 -46.488395 41.905302 6709.9860 3.3228146e+08 0.063161778 0.040505391 -46.561723 41.797608 6712.1816 3.2175765e+08 0.060944247 0.042167202 -46.639264 41.689913 6714.3773 3.1190703e+08 0.058781849 0.047331771 -46.716804 41.582218 6716.5729 2.9597450e+08 0.056914474 0.049245179 -46.791325 41.474523 6718.7685 2.8427978e+08 0.054525508 0.051009326 -46.864556 41.366829 6720.9641 2.7363547e+08 0.054674239 0.050308053 -46.937788 41.257500 6723.1598 2.6402711e+08 0.053496667 0.049458053 -47.011021 41.145499 6725.3554 2.5531366e+08 0.049239563 0.041354018 -47.084255 41.033746 6727.5510 2.4270355e+08 0.048049054 0.040226259 -47.157497 40.926036 6729.7467 2.3474617e+08 0.047127535 0.040547763 -47.230740 40.818325 6731.9423 2.2672769e+08 0.045464578 0.043625339 -47.308048 40.699301 6734.1379 2.1798942e+08 0.044699855 0.049345302 -47.386808 40.576239 6736.3335 2.0999979e+08 0.046592526 0.051615956 -47.461676 40.464008 6738.5292 2.0015869e+08 0.047776958 0.060234373 -47.534920 40.356297 6740.7248 1.9195486e+08 0.047098979 0.065288540 -47.606503 40.248593 6742.9204 1.8595084e+08 0.043816360 0.070853519 -47.675427 40.140899 6745.1160 1.7797982e+08 0.040565071 0.078615670 -47.744351 40.033204 6747.3117 1.7268441e+08 0.036123413 0.067253865 -47.813276 39.925510 6749.5073 1.6978988e+08 0.034973123 0.072139035 -47.882200 39.817816 6751.7029 1.6252531e+08 0.031809141 0.074008871 -47.958429 39.695055 6753.8986 1.5664304e+08 0.030253555 0.075885163 -48.037201 39.567049 6756.0942 1.4878521e+08 0.027827745 0.074409242 -48.108976 39.453475 6758.2898 1.4094715e+08 0.027543139 0.074318153 -48.177901 39.345780 6760.4854 1.3842325e+08 0.028083458 0.076986966 -48.246826 39.238085 6762.6811 1.3490881e+08 0.032789606 0.076952243 -48.315750 39.130391 6764.8767 1.2981181e+08 0.035510075 0.079525285 -48.385342 39.021653 6767.0723 1.2633169e+08 0.035414671 0.081894795 -48.464114 38.898571 6769.2679 1.2084103e+08 0.030569273 0.085104131 -48.542368 38.776053 6771.4636 1.1751581e+08 0.026618938 0.090429491 -48.606984 38.668359 6773.6592 1.1058911e+08 0.022705913 0.095754852 -48.671599 38.560665 6775.8548 1.0409213e+08 0.018806189 0.10108021 -48.742820 38.441964 6778.0504 99287769. 0.014923181 0.10640557 -48.816670 38.318882 6780.2461 96510587. 0.011053150 0.11173093 -48.884204 38.206326 6782.4417 96363922. 0.0071861402 0.11705629 -48.948822 38.098631 6784.6373 94422473. 0.0033318053 0.12238165 -49.016787 37.985355 6786.8330 93000641. -0.00052320105 0.12770702 -49.090635 37.862273 6789.0286 90278886. -0.0043694627 0.13303238 -49.161423 37.744293 6791.2242 88718254. -0.0082211527 0.13835774 -49.226040 37.636599 6793.4198 86227179. -0.012066528 0.14368310 -49.290751 37.528748 6795.6155 84080407. -0.015911996 0.14900846 -49.364599 37.405666 6797.8111 82205931. -0.019758701 0.15433382 -49.438447 37.282584 6800.0067 76276320. -0.023584386 0.15965918 -49.512297 37.159502 6802.2023 73679278. -0.027425220 0.16498454 -49.586147 37.036420 6804.3980 72657241. -0.031273275 0.17030990 -49.647163 36.927923 6806.5936 69694240. -0.035114921 0.17563526 -49.707472 36.820227 6808.7892 68821883. -0.038964586 0.18096062 -49.773178 36.702893 6810.9849 63442485. -0.042813650 0.18628598 -49.842104 36.579811 6813.1805 58626714. -0.046675770 0.19161134 -49.913961 36.456729 6815.3761 57113467. -0.050560166 0.19693670 -49.987811 36.333647 6817.5717 54788985. -0.054481531 0.20226206 -50.058883 36.210566 6819.7674 53327430. -0.058464630 0.20758742 -50.127808 36.087484 6821.9630 53037274. -0.062546007 0.21291278 -50.196734 35.964402 6824.1586 51907866. -0.067165251 0.21823815 -50.265660 35.841320 6826.3542 49797376. -0.075618754 0.22356351 -50.328100 35.725959 6828.5499 48510678. -0.075560669 0.22888887 -50.384102 35.618264 6830.7455 46421390. -0.070848880 0.23421423 -50.442436 35.507793