# # 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 = 58.401543 km # Date (UTC) = 2015-01-09T09:45:01.050 # Date (julian) = 2457031.90626215 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6496.7872 6.6021543e+10 0.033270474 0.031314385 109.10569 35.787755 6499.1284 6.0017023e+10 0.041394556 0.032020391 109.17459 35.663729 6501.4697 5.4703150e+10 0.049728108 0.032726397 109.24573 35.537470 6503.8110 4.9960941e+10 0.058379179 0.033432404 109.31923 35.408851 6506.1523 4.5637526e+10 0.067437089 0.034138410 109.39131 35.281652 6508.4935 4.1760668e+10 0.077008035 0.034844416 109.46021 35.157627 6510.8348 3.8248436e+10 0.087163085 0.035550423 109.52972 35.032991 6513.1761 3.5046324e+10 0.097925964 0.036256429 109.60323 34.904353 6515.5174 3.2008118e+10 0.10929629 0.036962435 109.67673 34.775715 6517.8587 2.9164479e+10 0.12129553 0.037668441 109.74584 34.651484 6520.1999 2.6534822e+10 0.13394884 0.038374448 109.81475 34.527458 6522.5412 2.4173702e+10 0.14578920 0.039058976 109.88365 34.403432 6524.8825 2.1987011e+10 0.15369556 0.039740472 109.95255 34.279407 6527.2238 1.9931755e+10 0.15990450 0.040878934 110.01869 34.152617 6529.5651 1.8029845e+10 0.16529821 0.043135866 110.08300 34.023998 6531.9063 1.6355832e+10 0.17057605 0.046547857 110.14601 33.903183 6534.2476 1.5025826e+10 0.17372196 0.048013824 110.20726 33.792940 6536.5889 1.3910833e+10 0.17539125 0.048317396 110.26850 33.682696 6538.9302 1.2877053e+10 0.17618688 0.049609624 110.33722 33.554527 6541.2714 1.1872063e+10 0.17529091 0.051238501 110.40612 33.425908 6543.6127 1.0881914e+10 0.17316316 0.051542706 110.47135 33.300957 6545.9540 9.9965407e+09 0.17044031 0.052464114 110.53566 33.176931 6548.2953 9.2040564e+09 0.16877112 0.053755827 110.59998 33.052894 6550.6366 8.4795016e+09 0.16680076 0.055144749 110.66430 32.928849 6552.9778 7.8307285e+09 0.16509443 0.055340645 110.73066 32.802770 6555.3191 7.2599296e+09 0.16289852 0.054585229 110.79956 32.674151 6557.6604 6.7380243e+09 0.16066673 0.053452169 110.86723 32.546763 6560.0017 6.2611363e+09 0.15823964 0.052272799 110.93154 32.422737 6562.3430 5.8310847e+09 0.15532187 0.050553571 110.99543 32.298711 6564.6842 5.4396255e+09 0.15272958 0.048461503 111.05515 32.174685 6567.0255 5.0832738e+09 0.15067235 0.046595618 111.11487 32.050659 6569.3668 4.7545860e+09 0.14874252 0.044876297 111.17879 31.926633 6571.7081 4.4448986e+09 0.14721319 0.044309888 111.24310 31.802607 6574.0493 4.1706326e+09 0.14472125 0.042831305 111.30740 31.675195 6576.3906 3.9176154e+09 0.14242118 0.040921777 111.37171 31.546575 6578.7319 3.6829110e+09 0.13948386 0.037493855 111.43602 31.420529 6581.0732 3.4594949e+09 0.13670986 0.035574449 111.50033 31.296503 6583.4145 3.2578124e+09 0.13432982 0.034811885 111.56034 31.177758 6585.7557 3.0972203e+09 0.13139977 0.033366578 111.61342 31.067515 6588.0970 2.9582847e+09 0.12881813 0.033347532 111.66650 30.957272 6590.4383 2.8320425e+09 0.12546652 0.030246770 111.72579 30.834138 6592.7796 2.6912003e+09 0.12245033 0.027316322 111.78551 30.710094 6595.1209 2.5423801e+09 0.11973799 0.025636104 111.84871 30.586064 6597.4621 2.4024446e+09 0.11736875 0.025576896 111.91302 30.462038 6599.8034 2.2727045e+09 0.11655245 0.024978051 111.97466 30.338012 6602.1447 2.1648612e+09 0.11627169 0.027393162 112.03438 30.213986 6604.4860 2.0597399e+09 0.11522347 0.026359827 112.09409 30.089960 6606.8272 1.9577205e+09 0.11451745 0.026017431 112.15381 29.965935 6609.1685 1.8609993e+09 0.11153729 0.023755991 112.21352 29.841910 6611.5098 1.7680371e+09 0.10886884 0.024633353 112.27324 29.717884 6613.8511 1.6805239e+09 0.10793333 0.023885853 112.33273 29.593630 6616.1924 1.5996309e+09 0.10644073 0.023312490 112.38785 29.465011 6618.5336 1.5239069e+09 0.10578839 0.024173755 112.44297 29.336391 6620.8749 1.4497229e+09 0.10496602 0.025049138 112.50210 29.211780 6623.2162 1.3845097e+09 0.10328727 0.024571923 112.56182 29.087754 6625.5575 1.3171229e+09 0.10177374 0.026062837 112.62154 28.963728 6627.8988 1.2570368e+09 0.099767511 0.025663984 112.68125 28.839703 6630.2400 1.2005352e+09 0.098076392 0.025928893 112.73859 28.718060 6632.5813 1.1401996e+09 0.096204876 0.026102049 112.79371 28.598628 6634.9226 1.0850053e+09 0.094479997 0.026394141 112.85041 28.477620 6637.2639 1.0327033e+09 0.092646476 0.026032179 112.91013 28.353576 6639.6051 9.8681541e+08 0.091683765 0.025411783 112.96910 28.229534 6641.9464 9.4640070e+08 0.091658642 0.025151514 113.02422 28.105508 6644.2877 9.0972986e+08 0.090393541 0.025374700 113.07934 27.981481 6646.6290 8.7251845e+08 0.089297782 0.026245727 113.13446 27.857456 6648.9703 8.3870787e+08 0.088152391 0.027613778 113.18958 27.733430 6651.3115 8.0116200e+08 0.087990288 0.026722913 113.24471 27.609405 6653.6528 7.6515570e+08 0.087579357 0.027858965 113.29983 27.485380 6655.9941 7.3014912e+08 0.085906370 0.028020977 113.35495 27.361354 6658.3354 6.8974546e+08 0.084506860 0.030655867 113.41008 27.237328 6660.6767 6.5730583e+08 0.083080907 0.032241040 113.46520 27.113302 6663.0179 6.2833139e+08 0.081827821 0.032478244 113.52032 26.989276 6665.3592 6.0586203e+08 0.081198611 0.027958557 113.57544 26.866537 6667.7005 5.8667051e+08 0.080509507 0.027360758 113.63057 26.747104 6670.0418 5.6183816e+08 0.079814872 0.027309284 113.68569 26.627198 6672.3830 5.3664648e+08 0.079470431 0.027101618 113.74081 26.503173 6674.7243 5.1170510e+08 0.078133210 0.029565804 113.79594 26.379148 6677.0656 4.8845084e+08 0.075747131 0.032264961 113.85107 26.255105 6679.4069 4.6998221e+08 0.075291914 0.029931546 113.90619 26.131061 6681.7482 4.4991860e+08 0.076168111 0.030231332 113.95787 26.007031 6684.0894 4.2983140e+08 0.076315876 0.032658630 114.00840 25.883005 6686.4307 4.1687868e+08 0.075118765 0.034011680 114.06156 25.761609 6688.7720 4.0291781e+08 0.071935553 0.033963392 114.11669 25.642176 6691.1133 3.8826349e+08 0.070529524 0.032974538 114.16999 25.520926 6693.4545 3.7021449e+08 0.069419673 0.031448150 114.22052 25.396900 6695.7958 3.5176063e+08 0.068994401 0.029713290 114.27206 25.272875 6698.1371 3.3817169e+08 0.068110344 0.030406011 114.32718 25.148850 6700.4784 3.2677219e+08 0.066314179 0.031022550 114.38211 25.025016 6702.8197 3.1382191e+08 0.065569700 0.033531235 114.43264 24.905584 6705.1609 3.0102812e+08 0.065853494 0.036954728 114.48316 24.786152 6707.5022 2.8848246e+08 0.065556594 0.040114884 114.53369 24.662747 6709.8435 2.7939127e+08 0.064576527 0.040596037 114.58422 24.538720 6712.1848 2.7133286e+08 0.062338718 0.042173028 114.63972 24.406117 6714.5261 2.6107282e+08 0.060185170 0.047342957 114.69747 24.269620 6716.8673 2.4833507e+08 0.058174882 0.049678863 114.74956 24.142888 6719.2086 2.3655828e+08 0.055926446 0.051171642 114.80009 24.018862 6721.5499 2.2668347e+08 0.056322212 0.050469584 114.85062 23.897620 6723.8912 2.1766695e+08 0.054461809 0.049865964 114.90115 23.778188 6726.2324 2.1308275e+08 0.050376491 0.040953464 114.95168 23.656777 6728.5737 2.0562466e+08 0.049720371 0.040441258 115.00222 23.532734 6730.9150 1.9870890e+08 0.047947174 0.041633486 115.05458 23.405553 6733.2563 1.8983757e+08 0.046645475 0.045315744 115.11231 23.269078 6735.5976 1.8028429e+08 0.047458139 0.049927788 115.16755 23.136921 6737.9388 1.7497399e+08 0.048956779 0.057126265 115.21809 23.012876 6740.2801 1.6917096e+08 0.048592790 0.064528897 115.26862 22.889619 6742.6214 1.6281976e+08 0.045488477 0.070124903 115.31915 22.770187 6744.9627 1.5445603e+08 0.041607595 0.078538017 115.36968 22.650755 6747.3040 1.4825172e+08 0.037073962 0.067256521 115.42217 22.514366 6749.6452 1.4137451e+08 0.035631863 0.072101268 115.47449 22.378977 6751.9865 1.3883260e+08 0.032124640 0.074128773 115.52502 22.254952 6754.3278 1.3557073e+08 0.030907297 0.075686344 115.57555 22.130927 6756.6691 1.2885216e+08 0.028213752 0.075888520 115.62787 21.995529 6759.0103 1.2355652e+08 0.028960529 0.075822451 115.68036 21.859189 6761.3516 1.1738372e+08 0.030645612 0.077997276 115.73089 21.739720 6763.6929 1.1404750e+08 0.035573366 0.078548017 115.78142 21.620288 6766.0342 1.1364827e+08 0.037646457 0.079791068 115.83358 21.486690 6768.3755 1.0844553e+08 0.034077223 0.082207022 115.88608 21.350193 6770.7167 1.0295195e+08 0.029543859 0.088618108 115.93676 21.225236 6773.0580 99053856. 0.025431180 0.094296738 115.98728 21.101210 6775.3993 92591841. 0.021378313 0.099975368 116.03929 20.967851 6777.7406 89154972. 0.017280757 0.10565400 116.09179 20.831355 6780.0819 88112932. 0.013130910 0.11133263 116.13875 20.709252 6782.4231 88649848. 0.0089478768 0.11701126 116.18468 20.589819 6784.7644 86414823. 0.0048275648 0.12268989 116.23499 20.459012 6787.1057 83259499. 0.00072674736 0.12836852 116.28750 20.322517 6789.4470 77599340. -0.0033101397 0.13404715 116.34000 20.186020 6791.7882 71580469. -0.0073101822 0.13972578 116.39249 20.049523 6794.1295 70684223. -0.011437674 0.14540441 116.44499 19.913026 6796.4708 65383397. -0.015424696 0.15108304 116.49749 19.776530 6798.8121 60136766. -0.019362050 0.15676166 116.54374 19.656281 6801.1534 60472261. -0.023468299 0.16244029 116.58967 19.536849 6803.4946 57453686. -0.027414902 0.16811892 116.64069 19.404188 6805.8359 57900475. -0.031463761 0.17379755 116.69319 19.267690 6808.1772 55160059. -0.035334884 0.17947618 116.74569 19.131193 6810.5185 49014667. -0.038831564 0.18515481 116.79820 18.994696 6812.8598 50718034. -0.043002624 0.19083344 116.85069 18.858199 6815.2010 48700611. -0.045468323 0.19651207 116.90319 18.721703 6817.5423 47981655. -0.051426000 0.20219070 116.95569 18.585206 6819.8836 44433176. -0.059011714 0.20786933 117.00737 18.448709