# # 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 = 43.473819 km # Date (UTC) = 2013-01-02T10:21:45.790 # Date (julian) = 2456294.93177997 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6502.4767 6.6133234e+10 0.053179437 0.033030045 -38.206055 46.836460 6504.5778 6.1908806e+10 0.061996347 0.033663639 -38.290345 46.744841 6506.6790 5.6862406e+10 0.070884330 0.034297233 -38.377712 46.649878 6508.7801 5.2012544e+10 0.080024650 0.034930827 -38.472529 46.546817 6510.8812 4.7186835e+10 0.089375784 0.035564420 -38.567345 46.443757 6512.9824 4.2926406e+10 0.099111091 0.036198014 -38.653031 46.347445 6515.0835 4.0202488e+10 0.10970699 0.036831608 -38.737309 46.252173 6517.1847 3.7347612e+10 0.12060532 0.037465202 -38.823036 46.155830 6519.2858 3.4600586e+10 0.13187139 0.038098796 -38.917852 46.052769 6521.3870 3.1822013e+10 0.14340452 0.038732390 -39.012667 45.949709 6523.4881 2.9095664e+10 0.15092166 0.039300087 -39.104547 45.843716 6525.5892 2.6579039e+10 0.15654302 0.039714966 -39.195239 45.736534 6527.6904 2.4393125e+10 0.16210786 0.041217698 -39.283049 45.633806 6529.7915 2.2630927e+10 0.16688842 0.043496616 -39.363664 45.542198 6531.8927 2.1201041e+10 0.17088294 0.046527968 -39.444280 45.450591 6533.9938 1.9885284e+10 0.17306869 0.047941927 -39.530507 45.352605 6536.0950 1.8525030e+10 0.17370869 0.047875458 -39.621201 45.249545 6538.1961 1.7171908e+10 0.17554506 0.049252169 -39.710573 45.147505 6540.2972 1.5978246e+10 0.17576992 0.050994524 -39.791198 45.052221 6542.3984 1.4973690e+10 0.17397680 0.051153485 -39.871822 44.956937 6544.4995 1.4076710e+10 0.17216693 0.052049569 -39.954840 44.858523 6546.6007 1.3150787e+10 0.17005534 0.052958775 -40.041412 44.755464 6548.7018 1.2190897e+10 0.16806644 0.053877229 -40.127983 44.652404 6550.8029 1.1258873e+10 0.16641405 0.055186411 -40.214554 44.545316 6552.9041 1.0363766e+10 0.16513161 0.055359208 -40.301124 44.438133 6555.0052 9.5742845e+09 0.16345361 0.054848969 -40.382394 44.339530 6557.1064 8.9110668e+09 0.16126236 0.053799431 -40.459344 44.247923 6559.2075 8.3268014e+09 0.15861260 0.052363759 -40.536293 44.156316 6561.3087 7.7888369e+09 0.15597165 0.051220581 -40.621150 44.055295 6563.4098 7.2350164e+09 0.15358042 0.049454322 -40.707720 43.952235 6565.5109 6.7046942e+09 0.15140124 0.047738215 -40.789032 43.852255 6567.6121 6.2631002e+09 0.14954545 0.046099654 -40.862328 43.756972 6569.7132 5.8915391e+09 0.14763215 0.044898844 -40.935624 43.661688 6571.8144 5.5492781e+09 0.14561043 0.044280855 -41.015029 43.561214 6573.9155 5.1873025e+09 0.14292054 0.042922806 -41.097477 43.458154 6576.0167 4.8414871e+09 0.14037597 0.041352226 -41.177711 43.356976 6578.1178 4.5408638e+09 0.13755027 0.038463602 -41.250997 43.261704 6580.2189 4.2983426e+09 0.13432640 0.036318423 -41.324284 43.166431 6582.3201 4.0775891e+09 0.13111998 0.035206692 -41.402267 43.067166 6584.4212 3.8500894e+09 0.12780767 0.034286056 -41.484715 42.964106 6586.5224 3.6159582e+09 0.12478555 0.033164544 -41.566805 42.861046 6588.6235 3.3796082e+09 0.12240903 0.033171709 -41.645130 42.757986 6590.7246 3.1617480e+09 0.11989600 0.029714108 -41.723456 42.654926 6592.8258 2.9659327e+09 0.11793260 0.027271432 -41.798450 42.557015 6594.9269 2.8131607e+09 0.11567960 0.025663682 -41.871736 42.461744 6597.0281 2.6823043e+09 0.11311703 0.025713868 -41.945022 42.366473 6599.1292 2.5514238e+09 0.11131696 0.024937502 -42.023016 42.263928 6601.2304 2.4119631e+09 0.11127651 0.027154176 -42.101353 42.160852 6603.3315 2.2704806e+09 0.11015902 0.026467026 -42.175274 42.061730 6605.4326 2.1512205e+09 0.10946483 0.027027996 -42.244897 41.966458 6607.5338 2.0487770e+09 0.10761346 0.024652970 -42.314519 41.871185 6609.6349 1.9530277e+09 0.10446576 0.023894535 -42.387703 41.769857 6611.7361 1.8569898e+09 0.10172305 0.024489061 -42.461905 41.666797 6613.8372 1.7501018e+09 0.10057988 0.023880765 -42.537558 41.562286 6615.9384 1.6398452e+09 0.098931120 0.023280402 -42.615884 41.455104 6618.0395 1.5398192e+09 0.098143800 0.023800620 -42.694211 41.347923 6620.1406 1.4496296e+09 0.097206530 0.024812518 -42.761083 41.255164 6622.2418 1.3831558e+09 0.095525226 0.024693639 -42.827040 41.163557 6624.3429 1.3192710e+09 0.093368742 0.025045874 -42.894623 41.069692 6626.4441 1.2480291e+09 0.091537964 0.026025124 -42.968826 40.966632 6628.5452 1.1773576e+09 0.089768611 0.025924454 -43.043029 40.863572 6630.6463 1.1092018e+09 0.087825391 0.025929895 -43.110880 40.766510 6632.7475 1.0578190e+09 0.085967600 0.026121975 -43.176846 40.671226 6634.8486 1.0156226e+09 0.084220831 0.026388746 -43.243163 40.575611 6636.9498 9.7282226e+08 0.082626053 0.026180916 -43.317364 40.472552 6639.0509 9.2536119e+08 0.081729059 0.025609876 -43.391566 40.369492 6641.1521 8.7470314e+08 0.082617455 0.025148817 -43.465769 40.263888 6643.2532 8.2243170e+08 0.082320948 0.025230849 -43.539973 40.156704 6645.3543 7.7602880e+08 0.081530362 0.025617681 -43.611901 40.052496 6647.4555 7.3512445e+08 0.080592925 0.026677595 -43.674195 39.960889 6649.5566 7.0322155e+08 0.079712173 0.026866403 -43.736488 39.869282 6651.6578 6.7575771e+08 0.079268993 0.026988251 -43.802379 39.772383 6653.7589 6.4543763e+08 0.078714599 0.027913135 -43.872459 39.669323 6655.8601 6.1486477e+08 0.077092382 0.027965592 -43.942540 39.566114 6657.9612 5.8273400e+08 0.075697810 0.030016069 -44.012621 39.458932 6660.0623 5.5240813e+08 0.074305658 0.031682661 -44.082703 39.351750 6662.1635 5.2436634e+08 0.072843840 0.032952549 -44.152784 39.247085 6664.2646 4.9744144e+08 0.071665949 0.031237843 -44.222864 39.144024 6666.3658 4.7105686e+08 0.071613168 0.026979869 -44.291508 39.042400 6668.4669 4.4831333e+08 0.070600617 0.027883954 -44.353810 38.947115 6670.5680 4.2934217e+08 0.070269198 0.027065464 -44.416112 38.851830 6672.6692 4.1050629e+08 0.069849512 0.027267475 -44.480081 38.752999 6674.7703 3.9248552e+08 0.068446054 0.029604618 -44.546039 38.649939 6676.8715 3.7497397e+08 0.066141563 0.032275385 -44.612122 38.546879 6678.9726 3.5647758e+08 0.065363735 0.030286085 -44.682202 38.443819 6681.0738 3.4250022e+08 0.066370100 0.029713946 -44.752282 38.340759 6683.1749 3.2711178e+08 0.066987025 0.031444903 -44.819871 38.235208 6685.2760 3.0886434e+08 0.066908206 0.032996409 -44.885829 38.128026 6687.3772 2.8914475e+08 0.065240254 0.034132539 -44.951787 38.021581 6689.4783 2.7178937e+08 0.063058279 0.033585451 -45.017746 37.918520 6691.5795 2.5780790e+08 0.062295159 0.032864546 -45.083705 37.815460 6693.6806 2.4649984e+08 0.061554944 0.031370596 -45.144144 37.721023 6695.7818 2.3605460e+08 0.061482238 0.029715874 -45.202773 37.629416 6697.8829 2.2404037e+08 0.060921455 0.030202998 -45.261577 37.537435 6699.9840 2.1732946e+08 0.059533980 0.030682445 -45.327545 37.430236 6702.0852 2.0930038e+08 0.058047611 0.032944748 -45.393513 37.323037 6704.1863 1.9988419e+08 0.058545370 0.036269048 -45.459477 37.218315 6706.2875 1.8569754e+08 0.058668514 0.038946717 -45.525437 37.115255 6708.3886 1.7305587e+08 0.058449720 0.040466759 -45.590684 37.012195 6710.4898 1.6390729e+08 0.057255097 0.040592357 -45.652519 36.909134 6712.5909 1.5820397e+08 0.055404507 0.042927049 -45.714355 36.806074 6714.6920 1.5194183e+08 0.053588114 0.047355436 -45.779270 36.703014 6716.7932 1.4206591e+08 0.051901918 0.049569637 -45.845228 36.599954 6718.8943 1.3334843e+08 0.049829974 0.051205248 -45.909863 36.495570 6720.9955 1.2470976e+08 0.050443299 0.050304425 -45.971699 36.388388 6723.0966 1.1933758e+08 0.049607555 0.049422821 -46.033536 36.281207 6725.1977 1.1402686e+08 0.045692637 0.041452498 -46.095371 36.177716 6727.2989 1.0942878e+08 0.044576358 0.040562182 -46.157206 36.074656 6729.4000 1.0656644e+08 0.044233352 0.040778797 -46.219042 35.971596 6731.5012 99349748. 0.042905518 0.042747449 -46.280878 35.868536 6733.6023 91895983. 0.042279969 0.047194446 -46.342715 35.765476 6735.7035 84643466. 0.043887751 0.050040203 -46.404552 35.662415 6737.8046 82853183. 0.045595515 0.056698633 -46.466389 35.559355 6739.9057 86283934. 0.045739141 0.063935006 -46.525677 35.453746 6742.0069 82305454. 0.044055967 0.068627521 -46.583390 35.346563 6744.1080 74630403. 0.040014242 0.077876966 -46.641898 35.240170 6746.2092 67201950. 0.038888653 0.076555479 -46.703742 35.137094 6748.3103 64781947. 0.036114954 0.068649446 -46.765587 35.034019 6750.4115 66731016. 0.033559038 0.072706701 -46.830587 34.919662 6752.5126 65770962. 0.031169444 0.073541310 -46.896547 34.801876 6754.6137 63228416. 0.030212843 0.075226508 -46.959849 34.693581 6756.7149 61592761. 0.028053190 0.076006394 -47.021686 34.590521 6758.8160 61729009. 0.029069310 0.075430904 -47.082621 34.487461 6760.9172 60991198. 0.030047567 0.077810256 -47.140334 34.384400 6763.0183 60100586. 0.036253848 0.076493509 -47.198048 34.281340 6765.1194 57737204. 0.040457231 0.079552998 -47.255761 34.178280 6767.2206 52321143. 0.051623295 0.081728764 -47.313475 34.075220 6769.3217 50603212. 0.037667782 0.085234599 -47.374216 33.966753 6771.4229 48814704. 0.013211580 0.090330792 -47.440178 33.848968