# # 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 = 42.024117 km # Date (UTC) = 2016-01-27T09:05:54.393 # Date (julian) = 2457414.87910177 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6505.6547 5.8507578e+10 0.072897327 0.033988369 -9.5786232 59.278497 6507.2474 5.3905751e+10 0.080586888 0.034468644 -9.7416238 59.167205 6508.8401 4.9438019e+10 0.088350699 0.034948918 -9.9215878 59.042230 6510.4328 4.5291676e+10 0.096235822 0.035429193 -10.091303 58.924372 6512.0255 4.1671862e+10 0.10432509 0.035909468 -10.241303 58.820205 6513.6182 3.8916055e+10 0.11276636 0.036389742 -10.391303 58.716038 6515.2109 3.6676535e+10 0.12147922 0.036870017 -10.541304 58.607947 6516.8036 3.4483251e+10 0.13031899 0.037350292 -10.691305 58.499614 6518.3963 3.2156263e+10 0.13918845 0.037830566 -10.852150 58.382244 6519.9890 2.9607899e+10 0.14801660 0.038310841 -11.022157 58.257239 6521.5817 2.7170833e+10 0.15689971 0.038791115 -11.179059 58.143530 6523.1744 2.5118523e+10 0.16263699 0.039222339 -11.324892 58.039364 6524.7671 2.3540135e+10 0.16787727 0.039699478 -11.469537 57.934608 6526.3598 2.2223026e+10 0.17090782 0.040045302 -11.607010 57.826294 6527.9525 2.0952402e+10 0.17492882 0.041408004 -11.744483 57.717981 6529.5452 1.9829783e+10 0.17786458 0.043104253 -11.881977 57.612743 6531.1379 1.8789350e+10 0.17934374 0.045429407 -12.019477 57.508577 6532.7306 1.7688141e+10 0.18189843 0.047294539 -12.166374 57.395583 6534.3233 1.6421676e+10 0.18199660 0.048034999 -12.331381 57.265578 6535.9160 1.5086698e+10 0.18052917 0.047826936 -12.485564 57.142979 6537.5087 1.3904100e+10 0.18096368 0.048925060 -12.618898 57.034645 6539.1014 1.2912021e+10 0.17956852 0.049766384 -12.752231 56.926311 6540.6941 1.2092171e+10 0.17843351 0.051182019 -12.881641 56.817977 6542.2868 1.1318339e+10 0.17674681 0.051111128 -13.010808 56.709644 6543.8795 1.0578475e+10 0.17477172 0.051612725 -13.139961 56.603579 6545.4722 9.9136342e+09 0.17343554 0.052459798 -13.269102 56.499434 6547.0649 9.2885384e+09 0.17215137 0.053312050 -13.398247 56.394696 6548.6576 8.7280114e+09 0.17016419 0.053864032 -13.527413 56.286363 6550.2503 8.2373161e+09 0.16911171 0.055048036 -13.656580 56.178031 6551.8430 7.7849820e+09 0.16752917 0.055531662 -13.782658 56.069697 6553.4357 7.3800883e+09 0.16555968 0.055116038 -13.907659 55.961362 6555.0284 6.9821050e+09 0.16404374 0.054829488 -14.032660 55.853028 6556.6211 6.6147730e+09 0.16164014 0.053921810 -14.157660 55.744695 6558.2138 6.2415051e+09 0.15953226 0.053057106 -14.282660 55.636362 6559.8065 5.8760732e+09 0.15727335 0.052296148 -14.403738 55.528028 6561.3992 5.5414032e+09 0.15432727 0.051175955 -14.524571 55.419694 6562.9919 5.2184994e+09 0.15194283 0.049936056 -14.643150 55.311360 6564.5846 4.9376594e+09 0.14928563 0.048506648 -14.759817 55.203027 6566.1773 4.6672060e+09 0.14656242 0.047082575 -14.877069 55.094108 6567.7700 4.4249771e+09 0.14454140 0.045966115 -14.997878 54.981631 6569.3627 4.2041682e+09 0.14211471 0.044876032 -15.118687 54.869153 6570.9554 3.9929828e+09 0.14011111 0.044521741 -15.236428 54.759746 6572.5481 3.7914509e+09 0.13848756 0.043916260 -15.353095 54.651413 6574.1408 3.6016732e+09 0.13637611 0.042787369 -15.468342 54.543080 6575.7335 3.4222230e+09 0.13469943 0.041638754 -15.580842 54.434745 6577.3262 3.2639471e+09 0.13290167 0.039707954 -15.693343 54.326410 6578.9189 3.1027656e+09 0.13049950 0.037198526 -15.805843 54.218078 6580.5116 2.9543583e+09 0.12878153 0.036047938 -15.918343 54.109745 6582.1043 2.8231716e+09 0.12703029 0.035265405 -16.030843 53.999158 6583.6970 2.6835148e+09 0.12516819 0.034668863 -16.143343 53.886658 6585.2897 2.5566603e+09 0.12358926 0.033739143 -16.255256 53.774744 6586.8824 2.4157650e+09 0.12196148 0.033159889 -16.363590 53.666410 6588.4751 2.2856026e+09 0.12044033 0.033221260 -16.471924 53.558075 6590.0678 2.1862423e+09 0.11859506 0.030935897 -16.568790 53.461209 6591.6605 2.1015138e+09 0.11619388 0.028456581 -16.661645 53.368355 6593.2532 2.0381818e+09 0.11401640 0.026866794 -16.754500 53.275501 6594.8459 1.9722345e+09 0.11168974 0.025708148 -16.857977 53.164186 6596.4386 1.8974001e+09 0.10901842 0.025725280 -16.962123 53.051708 6598.0313 1.8143009e+09 0.10716348 0.025392207 -17.066280 52.941469 6599.6240 1.7209389e+09 0.10594319 0.024967262 -17.170447 52.833136 6601.2167 1.6348040e+09 0.10527426 0.027147758 -17.274614 52.724219 6602.8094 1.5507790e+09 0.10403181 0.026825896 -17.378781 52.611718 6604.4021 1.4736813e+09 0.10265291 0.026310050 -17.482948 52.499218 6605.9948 1.4028780e+09 0.10204605 0.027499629 -17.587114 52.389802 6607.5875 1.3309227e+09 0.10045870 0.024546837 -17.691281 52.281468 6609.1802 1.2698639e+09 0.098173641 0.023759470 -17.789168 52.177186 6610.7729 1.2197828e+09 0.096037746 0.024741501 -17.874880 52.080759 6612.3656 1.1760201e+09 0.094942002 0.024047563 -17.960592 51.984333 6613.9583 1.1365896e+09 0.094114768 0.023925206 -18.051772 51.881474 6615.5510 1.0948669e+09 0.093034507 0.023268485 -18.147605 51.773142 6617.1437 1.0493080e+09 0.092216526 0.023486905 -18.244022 51.664225 6618.7364 9.9948434e+08 0.091734182 0.024326894 -18.344022 51.551724 6620.3291 9.4747235e+08 0.091344264 0.024873262 -18.444022 51.439224 6621.9218 8.9490931e+08 0.090494590 0.024783899 -18.540925 51.326740 6623.5145 8.4530244e+08 0.089230023 0.024682455 -18.636740 51.214262 6625.1072 8.0340485e+08 0.088422827 0.025525574 -18.727909 51.108451 6626.6999 7.6846885e+08 0.086841508 0.025699115 -18.810049 51.015597 6628.2926 7.4144907e+08 0.085852340 0.025821910 -18.892190 50.922743 6629.8853 7.2203812e+08 0.084682271 0.025949032 -18.979471 50.819287 6631.4780 7.0055297e+08 0.083119846 0.025979325 -19.071138 50.706786 6633.0707 6.7444867e+08 0.082092259 0.026164604 -19.162804 50.594286 6634.6634 6.4256175e+08 0.080914195 0.026375237 -19.254471 50.481786 6636.2561 6.1332277e+08 0.079637614 0.026450282 -19.346139 50.369286 6637.8488 5.8706373e+08 0.078822127 0.025745674 -19.428118 50.271317 6639.4415 5.6982061e+08 0.078179334 0.025470257 -19.506687 50.178462 6641.0342 5.5689476e+08 0.078527944 0.025148417 -19.585257 50.085608 6642.6269 5.4499257e+08 0.078277969 0.025177352 -19.672217 49.974294 6644.2196 5.3199810e+08 0.077517291 0.025367345 -19.759717 49.861793 6645.8123 5.1201735e+08 0.076970944 0.025832238 -19.849465 49.749293 6647.4050 4.8991161e+08 0.076396847 0.026651039 -19.941133 49.636793 6648.9977 4.7080660e+08 0.075550868 0.027632180 -20.030472 49.526537 6650.5904 4.5632583e+08 0.075510468 0.026390407 -20.105470 49.430111 6652.1831 4.4754771e+08 0.075179682 0.027300913 -20.180467 49.333685 6653.7758 4.3757783e+08 0.074721777 0.027921782 -20.258296 49.233215 6655.3685 4.2085498e+08 0.073701031 0.027762502 -20.341629 49.124881 6656.9613 4.0482487e+08 0.072375688 0.028867101 -20.424963 49.016547 6658.5540 3.8414326e+08 0.071427990 0.031043522 -20.512194 48.904321 6660.1467 3.6519223e+08 0.070619610 0.031759296 -20.599677 48.791845 6661.7394 3.4859753e+08 0.069564424 0.032911517 -20.678504 48.688021 6663.3321 3.3483691e+08 0.068745109 0.032391193 -20.749931 48.591594 6664.9248 3.2797954e+08 0.068408257 0.028822456 -20.821359 48.495167 6666.5175 3.1814634e+08 0.068188231 0.027009427 -20.901585 48.386862 6668.1102 3.0431297e+08 0.067627765 0.027568253 -20.984919 48.274362 6669.7029 2.8836757e+08 0.067162251 0.027633822 -21.068252 48.163274 6671.2956 2.7249482e+08 0.067174256 0.026869560 -21.151585 48.054939 6672.8883 2.6317878e+08 0.066935813 0.027394448 -21.234918 47.946605 6674.4810 2.5273499e+08 0.065963806 0.029360509 -21.303717 47.849453 6676.0737 2.4373888e+08 0.064239023 0.031761195 -21.371573 47.753027 6677.6664 2.3602121e+08 0.063529914 0.031410922 -21.441000 47.654368 6679.2591 2.2522220e+08 0.063347121 0.030053698 -21.520167 47.541869 6680.8518 2.1802601e+08 0.064343012 0.029625347 -21.599334 47.429370 6682.4445 2.1108731e+08 0.065002411 0.030764126 -21.670141 47.328748 6684.0372 2.0668550e+08 0.065218487 0.032655977 -21.737996 47.232322 6685.6299 2.0641506e+08 0.065010359 0.033370125 -21.805851 47.135896 6687.2226 1.9372526e+08 0.063680056 0.034218776 -21.884327 47.024378 6688.8153 1.7752029e+08 0.061833274 0.033973380 -21.963494 46.911877 6690.4080 1.6421555e+08 0.061350039 0.033069111 -22.040408 46.799388 6692.0007 1.5385761e+08 0.060831676 0.032764560 -22.115393 46.686910 6693.5934 1.5224450e+08 0.060366318 0.031400529 -22.188898 46.577149 6695.1861 1.5238350e+08 0.060322059 0.029825296 -22.253182 46.484295 6696.7788 1.4749287e+08 0.060140545 0.029999346 -22.317466 46.391441 6698.3715 1.4410326e+08 0.059571228 0.030727694 -22.385375 46.291940 6699.9642 1.3559489e+08 0.058715845 0.030700784 -22.460375 46.179440 6701.5569 1.2534860e+08 0.057674401 0.032226525 -22.535375 46.066940 6703.1496 1.2170427e+08 0.058012594 0.034049495 -22.600320 45.969522 6704.7423 1.1994630e+08 0.058320626 0.036542045 -22.664603 45.873096 6706.3350 1.1845297e+08 0.058340197 0.039029387 -22.730368 45.774448 6707.9277 1.1794471e+08 0.058293439 0.040053939 -22.805368 45.661948 6709.5204 1.1322438e+08 0.057765902 0.040801564 -22.880368 45.549447 6711.1131 1.0802664e+08 0.056682894 0.040820873 -22.952293 45.436946 6712.7058 1.0471525e+08 0.055485640 0.043140335 -23.023127 45.324445 6714.2985 97839449. 0.054262405 0.047325847 -23.090537 45.217382 6715.8912 92815853. 0.053412401 0.048290051 -23.151250 45.120956 6717.4839 89843458. 0.052181873 0.049844339 -23.211962 45.024530 6719.0766 89539224. 0.050624864 0.051297091 -23.278122 44.919453 6720.6693 89701252. 0.051220785 0.050342220 -23.348955 44.806952 6722.2620 88000798. 0.051183109 0.050281339 -23.419789 44.695028 6723.8547 83550043. 0.050000290 0.049845609 -23.490622 44.586695 6725.4474 76107161. 0.047117647 0.041296568 -23.561455 44.478363 6727.0401 71176765. 0.046441509 0.040906997 -23.622181 44.378820 6728.6328 65872659. 0.046951625 0.040524948 -23.679322 44.282393 6730.2255 61500162. 0.046399885 0.040688055 -23.736464 44.185967 6731.8182 61173205. 0.045563550 0.043378344 -23.806437 44.074482 6733.4109 60140943. 0.045480100 0.046155069 -23.877257 43.962003 6735.0036 60417517. 0.046546495 0.049297229 -23.945844 43.849513 6736.5963 61295238. 0.048996260 0.052609264 -24.012510 43.737013 6738.1890 58561035. 0.052439838 0.058361496 -24.077866 43.626725 6739.7817 53218573. 0.068647611 0.063783176 -24.135007 43.530299 6741.3744 51254436. 0.054643560 0.066826439 -24.192148 43.433873 6742.9671 51188792. 0.023945087 0.070967221 -24.252505 43.332021