# # 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 = 46.471632 km # Date (UTC) = 2015-01-10T10:06:53.220 # Date (julian) = 2457032.92144931 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6498.5245 9.0108393e+10 0.037738808 0.031838266 -30.940598 50.671298 6500.3355 8.1651037e+10 0.044446595 0.032384380 -31.050196 50.569809 6502.1465 7.3178798e+10 0.051227938 0.032930493 -31.142588 50.480972 6503.9576 6.7047172e+10 0.058455570 0.033476607 -31.234972 50.392142 6505.7686 6.2168607e+10 0.066152904 0.034022721 -31.327356 50.302644 6507.5797 5.7370788e+10 0.074138972 0.034568834 -31.419740 50.210260 6509.3907 5.2976525e+10 0.082486475 0.035114948 -31.512123 50.117877 6511.2017 4.8856772e+10 0.091187642 0.035661062 -31.604512 50.026816 6513.0128 4.5039651e+10 0.10025564 0.036207176 -31.696910 49.937972 6514.8238 4.1698885e+10 0.10977249 0.036753289 -31.789308 49.849129 6516.6348 3.8716076e+10 0.11970296 0.037299403 -31.881698 49.760292 6518.4459 3.5877645e+10 0.12993432 0.037845517 -31.974082 49.671461 6520.2569 3.3176905e+10 0.14043024 0.038391631 -32.066466 49.582631 6522.0680 3.0683687e+10 0.15101006 0.038935047 -32.148845 49.501157 6523.8790 2.8701130e+10 0.15688130 0.039396970 -32.227804 49.422198 6525.6900 2.7098715e+10 0.16253509 0.039703462 -32.306763 49.343239 6527.5011 2.5579992e+10 0.16842831 0.041080257 -32.391438 49.258563 6529.3121 2.4006283e+10 0.17232789 0.042732953 -32.480269 49.169732 6531.1232 2.2201972e+10 0.17499493 0.045407927 -32.569100 49.080902 6532.9342 2.0579306e+10 0.17790592 0.047464609 -32.655214 48.989353 6534.7452 1.9000517e+10 0.17815851 0.048153026 -32.740492 48.896969 6536.5563 1.7582263e+10 0.17661328 0.048288206 -32.825769 48.804584 6538.3673 1.6298399e+10 0.17600689 0.049335538 -32.914424 48.715577 6540.1783 1.4928433e+10 0.17537014 0.050938355 -33.003255 48.626746 6541.9894 1.3763838e+10 0.17317531 0.051005682 -33.091602 48.537916 6543.8004 1.2725947e+10 0.17125827 0.051591966 -33.176878 48.449085 6545.6115 1.1917986e+10 0.16980331 0.052461045 -33.262155 48.360255 6547.4225 1.1204704e+10 0.16878309 0.053448031 -33.346293 48.271420 6549.2335 1.0536169e+10 0.16706821 0.054204268 -33.428029 48.182576 6551.0446 9.9247554e+09 0.16565486 0.055251396 -33.509765 48.093732 6552.8556 9.3790196e+09 0.16485569 0.055371411 -33.593299 48.003091 6554.6666 8.8961477e+09 0.16327032 0.054846370 -33.678577 47.910708 6556.4777 8.4074013e+09 0.16134550 0.053942897 -33.763856 47.818325 6558.2887 7.9719135e+09 0.15961439 0.052993278 -33.846669 47.728405 6560.0998 7.5744138e+09 0.15766990 0.052184362 -33.928393 47.639574 6561.9108 7.1643300e+09 0.15522312 0.050923860 -34.010117 47.550744 6563.7218 6.7709381e+09 0.15259470 0.049093369 -34.088718 47.461913 6565.5329 6.3698824e+09 0.15065739 0.047713311 -34.166890 47.373082 6567.3439 6.0113329e+09 0.14887937 0.046326401 -34.245291 47.284022 6569.1550 5.6906890e+09 0.14668370 0.044862509 -34.327015 47.191637 6570.9660 5.3788085e+09 0.14495335 0.044517364 -34.408739 47.099253 6572.7770 5.0937576e+09 0.14334719 0.043785173 -34.489573 47.007758 6574.5881 4.8216157e+09 0.14142348 0.042572559 -34.567743 46.918927 6576.3991 4.5716519e+09 0.13960211 0.040912018 -34.645913 46.830097 6578.2101 4.3422002e+09 0.13778560 0.038317777 -34.724084 46.739717 6580.0212 4.1161467e+09 0.13612214 0.036501180 -34.802255 46.647334 6581.8322 3.8951879e+09 0.13435728 0.035344602 -34.880426 46.554951 6583.6433 3.7066540e+09 0.13272926 0.034696079 -34.953197 46.470913 6585.4543 3.5472584e+09 0.13119569 0.033607576 -35.022682 46.391953 6587.2653 3.4249259e+09 0.12962581 0.033217157 -35.092166 46.312994 6589.0764 3.3053535e+09 0.12778397 0.032894467 -35.163994 46.229532 6590.8874 3.1667647e+09 0.12563127 0.029411349 -35.238622 46.140689 6592.6984 3.0222994e+09 0.12381819 0.027395122 -35.313251 46.051845 6594.5095 2.8714784e+09 0.12170224 0.025892842 -35.387872 45.960730 6596.3205 2.7358443e+09 0.11920922 0.025725817 -35.462489 45.868345 6598.1316 2.6154801e+09 0.11744128 0.025344354 -35.537107 45.775961 6599.9426 2.4974170e+09 0.11658279 0.024986423 -35.611724 45.686516 6601.7536 2.3905404e+09 0.11581243 0.027400610 -35.686342 45.597685 6603.5647 2.2883763e+09 0.11423249 0.026328988 -35.760959 45.508810 6605.3757 2.1907794e+09 0.11342803 0.026980236 -35.835578 45.416425 6607.1868 2.0966905e+09 0.11171053 0.025338233 -35.910197 45.324042 6608.9978 1.9946334e+09 0.10860013 0.023705990 -35.984815 45.232365 6610.8088 1.8989715e+09 0.10575317 0.024775794 -36.059432 45.143534 6612.6199 1.8166225e+09 0.10435409 0.023857613 -36.134050 45.054703 6614.4309 1.7419711e+09 0.10329501 0.023643617 -36.207303 44.964507 6616.2419 1.6659155e+09 0.10206097 0.023320271 -36.278367 44.872124 6618.0530 1.5917594e+09 0.10175027 0.023810801 -36.349432 44.779741 6619.8640 1.5220553e+09 0.10127876 0.024734387 -36.420497 44.689382 6621.6751 1.4551966e+09 0.10037636 0.024865697 -36.491562 44.600552 6623.4861 1.3940300e+09 0.098973727 0.024671916 -36.562626 44.511721 6625.2971 1.3238115e+09 0.098096696 0.025752171 -36.633690 44.420205 6627.1082 1.2638324e+09 0.096303011 0.025358594 -36.704753 44.327821 6628.9192 1.2157388e+09 0.095381605 0.026076302 -36.775817 44.235436 6630.7302 1.1632574e+09 0.094002831 0.025930101 -36.843538 44.146397 6632.5413 1.1083514e+09 0.092823001 0.026097249 -36.911050 44.057566 6634.3523 1.0564254e+09 0.091536003 0.026352543 -36.978012 43.969586 6636.1634 1.0090225e+09 0.090200792 0.026486314 -37.041187 43.887458 6637.9744 9.8008529e+08 0.089191276 0.025684181 -37.104361 43.805330 6639.7854 9.5092665e+08 0.088709448 0.025347342 -37.167536 43.723202 6641.5965 9.1661205e+08 0.088738712 0.025150326 -37.234879 43.634632 6643.4075 8.8968773e+08 0.087837327 0.025254148 -37.302392 43.545801 6645.2186 8.5552897e+08 0.086821110 0.025554067 -37.369904 43.456970 6647.0296 8.1774760e+08 0.085615343 0.026453358 -37.437415 43.368140 6648.8406 7.8218027e+08 0.084358304 0.027527002 -37.504925 43.279309 6650.6517 7.4427459e+08 0.083896805 0.026404421 -37.571255 43.189298 6652.4627 7.1559453e+08 0.083366990 0.027377829 -37.635213 43.096913 6654.2737 6.8996632e+08 0.082564629 0.027919610 -37.699172 43.004529 6656.0848 6.6158498e+08 0.081083850 0.028097828 -37.764970 42.913985 6657.8958 6.3576355e+08 0.080003031 0.029940230 -37.832481 42.825155 6659.7069 6.0692541e+08 0.078843730 0.031687148 -37.899991 42.736324 6661.5179 5.7930936e+08 0.077700910 0.032798724 -37.965002 42.644994 6663.3289 5.5214561e+08 0.076769387 0.032392058 -38.028961 42.552610 6665.1400 5.2914301e+08 0.076479575 0.028317786 -38.092919 42.460226 6666.9510 5.0802154e+08 0.076126801 0.027093911 -38.156877 42.371002 6668.7620 4.8506793e+08 0.075112219 0.028145130 -38.220835 42.282172 6670.5731 4.6354694e+08 0.075115903 0.027063132 -38.284794 42.193074 6672.3841 4.4192203e+08 0.074835651 0.027102243 -38.348762 42.100676 6674.1952 4.2500110e+08 0.073904033 0.029119421 -38.412729 42.008277 6676.0062 4.0905917e+08 0.071829669 0.031717718 -38.476695 41.916810 6677.8172 3.9210552e+08 0.070849461 0.031196432 -38.540653 41.827980 6679.6283 3.7974222e+08 0.070571761 0.029748594 -38.604611 41.739149 6681.4393 3.5953794e+08 0.071236094 0.029994391 -38.668569 41.648732 6683.2503 3.4408910e+08 0.071515666 0.031555471 -38.732527 41.556349 6685.0614 3.2896939e+08 0.071193283 0.032769678 -38.796485 41.463966 6686.8724 3.1333576e+08 0.069606859 0.034268675 -38.858197 41.373829 6688.6835 3.0457215e+08 0.067020741 0.033942957 -38.918603 41.284998 6690.4945 2.8773917e+08 0.065832448 0.033059193 -38.979008 41.196167 6692.3055 2.7191334e+08 0.064873789 0.032410523 -39.039413 41.104429 6694.1166 2.6397678e+08 0.063900364 0.031097636 -39.099817 41.012045 6695.9276 2.5593511e+08 0.063751092 0.029689081 -39.160221 40.919673 6697.7387 2.4698035e+08 0.063036765 0.030184743 -39.220626 40.830843 6699.5497 2.3581750e+08 0.061699140 0.031083223 -39.281032 40.742012 6701.3607 2.2493450e+08 0.060079646 0.031938740 -39.343071 40.650010 6703.1718 2.1716286e+08 0.059961372 0.034105055 -39.412105 40.544427 6704.9828 2.1266211e+08 0.059995697 0.036660163 -39.481140 40.438844 6706.7938 2.0275487e+08 0.059591292 0.039828029 -39.543902 40.345437 6708.6049 1.9325171e+08 0.059115577 0.040702274 -39.604307 40.256606 6710.4159 1.8536121e+08 0.057851337 0.040577906 -39.664711 40.167775 6712.2270 1.7816106e+08 0.056011377 0.042251346 -39.721875 40.078944 6714.0380 1.7499865e+08 0.054131290 0.047306265 -39.778728 39.990114 6715.8490 1.7025927e+08 0.052748560 0.048246957 -39.835929 39.900935 6717.6601 1.6677034e+08 0.051024755 0.049833440 -39.896333 39.808552 6719.4711 1.6087781e+08 0.049565122 0.050922249 -39.956737 39.716168 6721.2821 1.5615844e+08 0.050014405 0.050388912 -40.016136 39.624790 6723.0932 1.5208139e+08 0.049166261 0.049420916 -40.072996 39.535946 6724.9042 1.4817200e+08 0.045652417 0.042375797 -40.129855 39.447102 6726.7153 1.4506454e+08 0.044255561 0.040957818 -40.186711 39.356595 6728.5263 1.4032536e+08 0.044254217 0.040374042 -40.243563 39.264210 6730.3373 1.3504990e+08 0.043257024 0.040841437 -40.300414 39.171826 6732.1484 1.3107587e+08 0.042307134 0.043767525 -40.362591 39.073451 6733.9594 1.2791889e+08 0.041894919 0.049133257 -40.427566 38.971927 6735.7705 1.1960378e+08 0.043916026 0.050111326 -40.490287 38.872854 6737.5815 1.1651319e+08 0.045696163 0.055987923 -40.543586 38.784023 6739.3925 1.1394271e+08 0.046555719 0.063306934 -40.596885 38.695193 6741.2036 1.1353226e+08 0.045917864 0.066339279 -40.651529 38.605017 6743.0146 1.1176846e+08 0.043425374 0.071145975 -40.708380 38.512634 6744.8256 1.0161267e+08 0.041326153 0.078432027 -40.765232 38.420251 6746.6367 95628241. 0.039016343 0.071585131 -40.820078 38.329873 6748.4477 93537283. 0.038356598 0.069372373 -40.873375 38.241042 6750.2588 93468062. 0.036225691 0.072445973 -40.926672 38.152212 6752.0698 89070125. 0.034401194 0.074053708 -40.988727 38.053862 6753.8808 83664516. 0.034510252 0.075827832 -41.053702 37.952340 6755.6919 78771904. 0.033570879 0.074302003 -41.115320 37.853444 6757.5029 77369077. 0.033030824 0.075213855 -41.168619 37.761059 6759.3139 76844619. 0.034637516 0.075895716 -41.221918 37.668674 6761.1250 73171784. 0.036887815 0.077978551 -41.278820 37.571965 6762.9360 70945188. 0.043765571 0.076540960 -41.339735 37.470443 6764.7471 67282202. 0.050338861 0.079519075 -41.400568 37.369055 6766.5581 58740669. 0.080957101 0.080976183 -41.453866 37.280224 6768.3691 52749336. 0.055977425 0.082184276 -41.507163 37.191394 6770.1802 50860550. -0.0051195353 0.087316711 -41.559763 37.101866