# # 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 = 48.252669 km # Date (UTC) = 2011-11-28T10:26:34.338 # Date (julian) = 2455893.93511965 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6497.1861 2.6587533e+11 0.041902756 0.031434690 -37.427067 54.343562 6499.3652 2.2686518e+11 0.049575772 0.032091772 -37.578534 54.226296 6501.5442 1.8994477e+11 0.057149280 0.032748854 -37.725006 54.111768 6503.7232 1.6065364e+11 0.064638780 0.033405937 -37.857558 54.004872 6505.9023 1.3666202e+11 0.072151703 0.034063019 -37.990110 53.897975 6508.0813 1.1789867e+11 0.079852804 0.034720101 -38.118687 53.795050 6510.2603 1.0094775e+11 0.087743747 0.035377183 -38.246944 53.692445 6512.4394 8.7135685e+10 0.096002089 0.036034265 -38.375201 53.587334 6514.6184 7.6386805e+10 0.10488977 0.036691347 -38.503457 53.480453 6516.7974 6.7237565e+10 0.11443482 0.037348430 -38.630656 53.373572 6518.9765 5.9819001e+10 0.12483791 0.038005512 -38.754639 53.266692 6521.1555 5.3196463e+10 0.13600788 0.038662594 -38.878621 53.159811 6523.3345 4.7062564e+10 0.14401642 0.039262026 -39.018691 53.043497 6525.5136 4.1574535e+10 0.14994691 0.039723602 -39.160388 52.926231 6527.6926 3.6684014e+10 0.15579073 0.041219309 -39.286822 52.817912 6529.8716 3.2692205e+10 0.16134523 0.043624226 -39.410804 52.711032 6532.0507 2.9507483e+10 0.16631802 0.046726522 -39.532552 52.604151 6534.2297 2.6786852e+10 0.16957157 0.048008815 -39.652257 52.497270 6536.4087 2.4472748e+10 0.17125268 0.048156213 -39.771963 52.391174 6538.5878 2.2426284e+10 0.17260318 0.049442897 -39.891669 52.288568 6540.7668 2.0651870e+10 0.17197218 0.051216364 -40.011375 52.185961 6542.9458 1.9103407e+10 0.17006669 0.051361334 -40.127471 52.079746 6545.1249 1.7719073e+10 0.16850491 0.052456686 -40.242903 51.972865 6547.3039 1.6405297e+10 0.16665777 0.053402938 -40.358334 51.865985 6549.4830 1.5201186e+10 0.16496380 0.054458445 -40.473765 51.759104 6551.6620 1.4091670e+10 0.16366675 0.055468118 -40.589199 51.652221 6553.8410 1.3116599e+10 0.16189148 0.054912297 -40.704648 51.545324 6556.0201 1.2264537e+10 0.16008960 0.054010177 -40.820097 51.438427 6558.1991 1.1511940e+10 0.15873185 0.053069656 -40.931992 51.331544 6560.3781 1.0802495e+10 0.15662271 0.051933381 -41.043147 51.224663 6562.5572 1.0071198e+10 0.15448990 0.050349746 -41.162062 51.110322 6564.7362 9.3592726e+09 0.15246547 0.048437954 -41.289102 50.988170 6566.9152 8.6427507e+09 0.15081420 0.046665142 -41.409121 50.872766 6569.0943 8.0213758e+09 0.14914922 0.044858560 -41.520276 50.765886 6571.2733 7.4812318e+09 0.14800198 0.044428632 -41.630992 50.659005 6573.4523 7.0120230e+09 0.14618614 0.043294495 -41.737872 50.552125 6575.6314 6.6034724e+09 0.14398160 0.041741248 -41.844753 50.445244 6577.8104 6.2197525e+09 0.14144290 0.038947427 -41.951634 50.338363 6579.9894 5.8607911e+09 0.13863905 0.036526560 -42.058515 50.231483 6582.1685 5.5242127e+09 0.13570307 0.035247949 -42.165395 50.124602 6584.3475 5.2158627e+09 0.13290253 0.034326211 -42.272276 50.017721 6586.5265 4.9295343e+09 0.13051547 0.033164490 -42.378790 49.910841 6588.7056 4.6632881e+09 0.12868122 0.033144301 -42.481396 49.803960 6590.8846 4.4074056e+09 0.12651928 0.029416552 -42.584003 49.697079 6593.0636 4.1740094e+09 0.12471246 0.027043050 -42.686608 49.590198 6595.2427 3.9526067e+09 0.12246002 0.025648738 -42.789212 49.483318 6597.4217 3.7462581e+09 0.12028063 0.025589650 -42.891817 49.376437 6599.6007 3.5609112e+09 0.11913506 0.024965862 -42.994424 49.269556 6601.7798 3.3805085e+09 0.11889481 0.027412924 -43.096738 49.162674 6603.9588 3.2132813e+09 0.11744565 0.026095655 -43.195083 49.055778 6606.1379 3.0603320e+09 0.11702826 0.027256244 -43.293427 48.948881 6608.3169 2.9110483e+09 0.11451130 0.023723993 -43.391761 48.841996 6610.4959 2.7756376e+09 0.11134354 0.024476822 -43.490091 48.735116 6612.6750 2.6426652e+09 0.10953548 0.023816449 -43.588421 48.626565 6614.8540 2.5131765e+09 0.10818011 0.023352125 -43.686751 48.515410 6617.0330 2.3893300e+09 0.10651054 0.023450199 -43.785081 48.404475 6619.2121 2.2745756e+09 0.10547520 0.024577082 -43.883411 48.297595 6621.3911 2.1646278e+09 0.10417002 0.024959816 -43.981741 48.190714 6623.5701 2.0684957e+09 0.10195958 0.024703051 -44.077025 48.083833 6625.7492 1.9788006e+09 0.10016886 0.026291585 -44.171081 47.976953 6627.9282 1.8853614e+09 0.097832830 0.025675360 -44.270157 47.864367 6630.1072 1.7849898e+09 0.095882897 0.025928566 -44.377651 47.742215 6632.2863 1.6762051e+09 0.093766693 0.026066672 -44.480751 47.625056 6634.4653 1.5785970e+09 0.092092717 0.026360784 -44.574805 47.518176 6636.6443 1.4929900e+09 0.090607479 0.026299529 -44.668858 47.411295 6638.8234 1.4206577e+09 0.089688261 0.025635770 -44.758692 47.300191 6641.0024 1.3554723e+09 0.090416724 0.025148309 -44.848473 47.189035 6643.1814 1.2951081e+09 0.090034220 0.025220014 -44.938253 47.080654 6645.3605 1.2407914e+09 0.089045590 0.025620556 -45.028032 46.973773 6647.5395 1.1863390e+09 0.087967928 0.026721837 -45.117812 46.866893 6649.7185 1.1310194e+09 0.087093473 0.026643203 -45.207591 46.760012 6651.8976 1.0787220e+09 0.086567777 0.027172034 -45.297370 46.653131 6654.0766 1.0285292e+09 0.085836437 0.028003585 -45.387162 46.542084 6656.2557 9.8465919e+08 0.083938010 0.028247803 -45.476955 46.430911 6658.4347 9.4458832e+08 0.082304506 0.030832007 -45.566740 46.322450 6660.6137 9.0345529e+08 0.080766351 0.032183842 -45.656521 46.215570 6662.7928 8.6430188e+08 0.079333401 0.032599488 -45.745049 46.108689 6664.9718 8.3104234e+08 0.078428114 0.028650341 -45.830553 46.001808 6667.1508 7.9474853e+08 0.077789137 0.027158859 -45.916056 45.894927 6669.3299 7.5744375e+08 0.076528380 0.028016911 -46.013215 45.773479 6671.5089 7.1531323e+08 0.076371114 0.026872601 -46.110937 45.651327 6673.6879 6.7192684e+08 0.075593700 0.028488069 -46.197574 45.539152 6675.8670 6.3574496e+08 0.073272149 0.031458916 -46.283079 45.427997 6678.0460 6.0817420e+08 0.071924891 0.030905846 -46.366154 45.319271 6680.2250 5.8251733e+08 0.071944977 0.029490011 -46.447383 45.212390 6682.4041 5.6001420e+08 0.072464898 0.030733268 -46.528612 45.105510 6684.5831 5.4008653e+08 0.072428899 0.032683682 -46.609842 44.998629 6686.7621 5.1584173e+08 0.071167001 0.034204509 -46.691072 44.891749 6688.9412 4.9811384e+08 0.068390784 0.034002445 -46.776108 44.781062 6691.1202 4.8169548e+08 0.067510779 0.032972901 -46.861613 44.669904 6693.2992 4.5924772e+08 0.066749319 0.031501430 -46.948465 44.552689 6695.4783 4.3895932e+08 0.066409960 0.029771620 -47.036415 44.430537 6697.6573 4.1406416e+08 0.065858030 0.030174449 -47.120974 44.316088 6699.8363 3.9217329e+08 0.064472314 0.030818722 -47.202203 44.209207 6702.0154 3.7902097e+08 0.062756429 0.032889014 -47.283431 44.101620 6704.1944 3.6579676e+08 0.063155733 0.036273023 -47.364660 43.990465 6706.3735 3.5324424e+08 0.063070259 0.039096370 -47.445888 43.879310 6708.5525 3.3901119e+08 0.062620906 0.040645218 -47.532671 43.759068 6710.7315 3.2060757e+08 0.061156988 0.040639681 -47.620621 43.636915 6712.9106 3.0233211e+08 0.059209587 0.043520559 -47.699998 43.526670 6715.0896 2.8526650e+08 0.057259380 0.047470220 -47.776952 43.419789 6717.2686 2.7061213e+08 0.055220130 0.049857653 -47.853911 43.312901 6719.4477 2.6130158e+08 0.053315615 0.050944528 -47.930877 43.206005 6721.6267 2.5254054e+08 0.053563309 0.050492726 -48.008464 43.097056 6723.8057 2.4174712e+08 0.051774029 0.049818314 -48.091526 42.970017 6725.9848 2.2913603e+08 0.047810642 0.040960884 -48.174251 42.844092 6728.1638 2.1686062e+08 0.047094855 0.039860258 -48.251205 42.737212 6730.3428 2.0953938e+08 0.045612826 0.040848971 -48.328159 42.630331 6732.5219 2.0293967e+08 0.044165537 0.043836284 -48.402052 42.523450 6734.7009 1.9574161e+08 0.043927133 0.049311428 -48.474732 42.416569 6736.8799 1.8688470e+08 0.045728519 0.053681668 -48.551328 42.302086 6739.0590 1.7731310e+08 0.046542226 0.062898725 -48.634390 42.175049 6741.2380 1.6941997e+08 0.045227746 0.066437506 -48.714021 42.054674 6743.4170 1.6225579e+08 0.041187854 0.073860804 -48.786700 41.947793 6745.5961 1.5631480e+08 0.038917619 0.078817473 -48.859380 41.840913 6747.7751 1.4970262e+08 0.034660355 0.067094320 -48.942354 41.718891 6749.9541 1.4300618e+08 0.032183884 0.072016686 -49.025416 41.596740 6752.1332 1.3654570e+08 0.029294999 0.073980359 -49.098668 41.484978 6754.3122 1.3172274e+08 0.028011075 0.075711387 -49.171348 41.373823 6756.4913 1.2845154e+08 0.025313630 0.075430973 -49.247358 41.256006 6758.6703 1.2279190e+08 0.025523278 0.075122733 -49.325536 41.133853 6760.8493 1.1382077e+08 0.025852979 0.077680888 -49.398248 41.020240 6763.0284 1.0521083e+08 0.030986650 0.076524124 -49.466652 40.913359 6765.2074 1.0072220e+08 0.033288334 0.079569053 -49.537206 40.803118 6767.3864 99745160. 0.032204878 0.081543069 -49.615383 40.680966 6769.5655 96072235. 0.027337533 0.085825751 -49.693560 40.557967 6771.7445 92679235. 0.023308661 0.091110869 -49.771737 40.430928 6773.9235 87877062. 0.019252022 0.096395986 -49.848675 40.306445 6776.1026 84390628. 0.015200234 0.10168110 -49.917079 40.199565 6778.2816 82173618. 0.011161993 0.10696622 -49.985482 40.092684 6780.4606 79201012. 0.0070753819 0.11225134 -50.061585 39.973773 6782.6397 75767062. 0.0029032123 0.11753646 -50.139763 39.851620 6784.8187 71316642. -0.0014850286 0.12282157 -50.214319 39.729468 6786.9977 66809872. -0.0062704036 0.12810669 -50.287611 39.607316 6789.1768 63626170. -0.012377300 0.13339181 -50.357508 39.492802 6791.3558 60935522. -0.029456203 0.13867692 -50.425911 39.381647 6793.5348 58056120. -0.022332711 0.14396204 -50.496052 39.266583 6795.7139 54558958. -0.00079278043 0.14924716 -50.569342 39.144431