# # 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 = 61.963827 km # Date (UTC) = 2011-12-09T09:48:45.600 # Date (julian) = 2455904.90886111 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6510.6045 9.6427376e+10 0.097751134 0.035480982 106.03209 32.429437 6513.4243 8.0884900e+10 0.11050115 0.036331276 106.10413 32.293469 6516.2441 6.8946469e+10 0.12354825 0.037181570 106.17297 32.160695 6519.0639 5.8785607e+10 0.13679078 0.038031863 106.24630 32.022660 6521.8836 5.0175594e+10 0.15023302 0.038882157 106.32929 31.873287 6524.7034 4.3095506e+10 0.15682246 0.039676843 106.40507 31.732361 6527.5232 3.7397545e+10 0.16119991 0.041096289 106.47393 31.599570 6530.3429 3.3064671e+10 0.16451857 0.044308787 106.54278 31.466787 6533.1627 2.9526488e+10 0.16692584 0.047588727 106.61162 31.334013 6535.9825 2.6330499e+10 0.16608502 0.047798109 106.68428 31.191444 6538.8022 2.3453247e+10 0.16706525 0.049547325 106.76173 31.036539 6541.6220 2.0869874e+10 0.16659106 0.051124820 106.83372 30.895687 6544.4418 1.8695498e+10 0.16587707 0.052002719 106.90256 30.762912 6547.2615 1.6980032e+10 0.16547635 0.053386822 106.97141 30.630139 6550.0813 1.5525719e+10 0.16504944 0.055005717 107.04025 30.497366 6552.9011 1.4180531e+10 0.16387628 0.055359967 107.11085 30.355152 6555.7208 1.2914629e+10 0.16157647 0.054247685 107.18278 30.205756 6558.5406 1.1733150e+10 0.15851121 0.052778638 107.25236 30.069004 6561.3604 1.0702874e+10 0.15427275 0.051195094 107.32121 29.936230 6564.1801 9.8677429e+09 0.15010297 0.048689955 107.38648 29.803456 6566.9999 9.1421022e+09 0.14741057 0.046617259 107.45041 29.670682 6569.8197 8.4562709e+09 0.14556602 0.044905773 107.52372 29.526395 6572.6395 7.7997737e+09 0.14370804 0.043863958 107.60117 29.377023 6575.4592 7.1755040e+09 0.14142560 0.041913965 107.66664 29.242358 6578.2790 6.6285645e+09 0.13883728 0.038209058 107.73057 29.109583 6581.0988 6.1897645e+09 0.13611211 0.035566704 107.79451 28.976794 6583.9185 5.7908469e+09 0.13399909 0.034556750 107.85845 28.844003 6586.7383 5.3914082e+09 0.13210989 0.033161752 107.92892 28.697627 6589.5581 4.9993281e+09 0.13018193 0.031938831 108.00075 28.548452 6592.3778 4.6266216e+09 0.12756491 0.027706537 108.06467 28.415674 6595.1976 4.3097406e+09 0.12476536 0.025644063 108.12860 28.282901 6598.0174 4.0591912e+09 0.12190321 0.025398873 108.19253 28.150127 6600.8371 3.8210762e+09 0.12103658 0.026710873 108.25646 28.017353 6603.6569 3.5752194e+09 0.11949334 0.026274387 108.32794 27.874125 6606.4767 3.3368567e+09 0.11848165 0.026647396 108.39809 27.731799 6609.2964 3.1220357e+09 0.11462978 0.023793989 108.45711 27.599007 6612.1162 2.9360678e+09 0.11119410 0.024233923 108.51747 27.464494 6614.9360 2.7633128e+09 0.10941341 0.023295639 108.58939 27.315121 6617.7557 2.5857325e+09 0.10745076 0.023689815 108.65748 27.170665 6620.5755 2.4192358e+09 0.10581649 0.024952657 108.71649 27.037892 6623.3953 2.2802224e+09 0.10315619 0.024638273 108.77550 26.906411 6626.2151 2.1694429e+09 0.10082772 0.026316907 108.83451 26.778554 6629.0348 2.0582896e+09 0.098781889 0.026102809 108.89648 26.645767 6631.8546 1.9430888e+09 0.097042011 0.026017575 108.96840 26.496394 6634.6744 1.8325729e+09 0.095708258 0.026376034 109.03488 26.354012 6637.4941 1.7302879e+09 0.094327034 0.025919404 109.09390 26.221220 6640.3139 1.6396955e+09 0.094364870 0.025232246 109.15578 26.084137 6643.1337 1.5499637e+09 0.094256650 0.025212800 109.22217 25.940296 6645.9534 1.4652627e+09 0.092988963 0.025898332 109.28427 25.802883 6648.7732 1.3894570e+09 0.091603651 0.027481867 109.34329 25.670110 6651.5930 1.3190026e+09 0.091074358 0.026938590 109.40633 25.528252 6654.4127 1.2456264e+09 0.090162211 0.027860396 109.47272 25.378879 6657.2325 1.1791312e+09 0.087847410 0.029170810 109.53365 25.245422 6660.0523 1.1220586e+09 0.085981670 0.031673512 109.59266 25.117566 6662.8720 1.0708761e+09 0.084058288 0.032555004 109.65298 24.974514 6665.6918 1.0201196e+09 0.083140102 0.027413574 109.71383 24.825140 6668.5116 9.6912317e+08 0.081812192 0.027923486 109.77304 24.695088 6671.3313 9.2347569e+08 0.081256433 0.026870070 109.83205 24.567215 6674.1511 8.8190187e+08 0.079956660 0.029082267 109.89745 24.420737 6676.9709 8.3958500e+08 0.076847659 0.032339453 109.96313 24.272609 6679.7907 7.9881098e+08 0.076398240 0.029614411 110.01722 24.144753 6682.6104 7.6156979e+08 0.076983509 0.030890928 110.07161 24.016508 6685.4302 7.2811385e+08 0.076381231 0.033159224 110.13800 23.872667 6688.2500 6.9365640e+08 0.073250337 0.033842889 110.20319 23.727626 6691.0697 6.5689739e+08 0.071215523 0.032984812 110.26405 23.578253 6693.8895 6.2362869e+08 0.070019581 0.031298937 110.32214 23.437677 6696.7093 5.9196022e+08 0.069772710 0.029970470 110.37624 23.309804 6699.5290 5.6537077e+08 0.068194680 0.031102287 110.43288 23.175929 6702.3488 5.3992449e+08 0.066431596 0.033155249 110.49373 23.032088 6705.1686 5.1390590e+08 0.066852138 0.036968288 110.55773 22.885103 6707.9883 4.8758094e+08 0.066492795 0.040045248 110.62412 22.735731 6710.8081 4.6643390e+08 0.064634519 0.040654672 110.68115 22.602728 6713.6279 4.4502005e+08 0.061866926 0.045957510 110.73525 22.474871 6716.4476 4.2621955e+08 0.059398505 0.049060696 110.79426 22.335390 6719.2674 4.0893364e+08 0.056633161 0.051115779 110.85511 22.191549 6722.0872 3.9079159e+08 0.056789716 0.050497427 110.91597 22.047708 6724.9069 3.7443742e+08 0.052233135 0.042353064 110.97621 21.903247 6727.7267 3.5601220e+08 0.050426168 0.039992192 111.03153 21.753874 6730.5465 3.3888006e+08 0.048750502 0.041128200 111.08854 21.606186 6733.3663 3.2352905e+08 0.047018032 0.045912802 111.14939 21.462344 6736.1860 3.0873849e+08 0.048314836 0.051058272 111.21025 21.318493 6739.0058 2.9300244e+08 0.049491248 0.062833638 111.27112 21.174630 6741.8256 2.8120235e+08 0.047290791 0.068113233 111.32731 21.041809 6744.6453 2.6997939e+08 0.042027763 0.078292556 111.38141 20.913954 6747.4651 2.6219850e+08 0.037238758 0.067201047 111.43631 20.775609 6750.2849 2.5263316e+08 0.034683215 0.072490548 111.49163 20.631768 6753.1046 2.4147226e+08 0.031801378 0.073315899 111.55165 20.487927 6755.9244 2.3103888e+08 0.029123095 0.074200054 111.61228 20.344087 6758.7442 2.2173946e+08 0.028865700 0.075278966 111.66760 20.200245 6761.5639 2.1303561e+08 0.031429254 0.078014817 111.72421 20.056404 6764.3837 2.0359648e+08 0.036449198 0.079501668 111.78507 19.912563 6767.2035 1.9542876e+08 0.036732164 0.081747927 111.84357 19.768723 6770.0232 1.8783518e+08 0.030928791 0.086936075 111.89889 19.624882 6772.8430 1.7916797e+08 0.026035677 0.093775253 111.95910 19.468331 6775.6628 1.6906563e+08 0.021177091 0.10061443 112.02204 19.304695 6778.4825 1.5752449e+08 0.016361852 0.10745361 112.07737 19.160833 6781.3023 1.4789720e+08 0.011560527 0.11429279 112.13397 19.018245 6784.1221 1.4220408e+08 0.0067415506 0.12113197 112.19483 18.879936 6786.9419 1.3631743e+08 0.0019468672 0.12797114 112.25335 18.739293 6789.7616 1.3104360e+08 -0.0028359641 0.13481032 112.30867 18.595454 6792.5814 1.2894819e+08 -0.0076614831 0.14164950 112.36400 18.451613 6795.4012 1.2566181e+08 -0.012455084 0.14848868 112.41932 18.307773 6798.2209 1.2161143e+08 -0.017221781 0.15532786 112.48102 18.147348 6801.0407 1.1488546e+08 -0.021910407 0.16216703 112.54247 17.988833 6803.8605 1.0762552e+08 -0.026553450 0.16900621 112.59779 17.850524 6806.6802 1.0546602e+08 -0.031319545 0.17584539 112.65311 17.709904 6809.5000 1.0313467e+08 -0.036073160 0.18268457 112.70844 17.566063 6812.3198 1.0009394e+08 -0.040779100 0.18952375 112.76859 17.409681 6815.1395 94366739. -0.045345629 0.19636293 112.83143 17.246036 6817.9593 92121638. -0.050014504 0.20320210 112.88122 17.107728 6820.7791 88564543. -0.054601122 0.21004128 112.93398 16.963652 6823.5988 82127104. -0.059001514 0.21688046 112.99720 16.799259 6826.4186 76827406. -0.063401482 0.22371964 113.05538 16.648009 6829.2384 72833371. -0.067832933 0.23055882 113.11071 16.504168 6832.0581 71957546. -0.072464952 0.23739799 113.17261 16.348489 6834.8779 70919437. -0.077050285 0.24423717 113.23425 16.188836 6837.6977 66805513. -0.081274241 0.25107635 113.29115 16.024443 6840.5175 61993042. -0.085225942 0.25791553 113.34700 15.877497 6843.3372 59994938. -0.089263787 0.26475471 113.40233 15.739189 6846.1570 58961827. -0.093076075 0.27159389 113.45901 15.578415 6848.9768 56171806. -0.095764817 0.27843306 113.51768 15.415790 6851.7965 55174924. -0.097056512 0.28527224 113.58091 15.257719 6854.6163 49507489. -0.076339787 0.29211142 113.63973 15.095235 6857.4361 46915076. -0.10083719 0.29895060 113.69645 14.933882 6860.2558 47239277. -0.15231972 0.30578978 113.75177 14.795573