# # 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 = 48.910507 km # Date (UTC) = 2011-12-12T10:07:00.246 # Date (julian) = 2455907.92153062 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6501.1309 1.4784789e+11 0.051475877 0.032624218 -36.049319 47.690679 6503.1670 1.2914645e+11 0.059263835 0.033238206 -36.143543 47.593391 6505.2031 1.1118832e+11 0.067105594 0.033852193 -36.239420 47.493520 6507.2392 9.4917438e+10 0.075003011 0.034466181 -36.332486 47.396577 6509.2754 8.1858472e+10 0.083085530 0.035080168 -36.417707 47.307804 6511.3115 7.1909829e+10 0.091539356 0.035694155 -36.502928 47.219032 6513.3476 6.4514934e+10 0.10054520 0.036308143 -36.588149 47.130259 6515.3837 5.8508242e+10 0.11009436 0.036922130 -36.673372 47.041486 6517.4198 5.3539432e+10 0.12021130 0.037536118 -36.758594 46.952713 6519.4560 4.8857051e+10 0.13071721 0.038150105 -36.848021 46.856932 6521.4921 4.4015422e+10 0.14142186 0.038764093 -36.939902 46.757062 6523.5282 3.9373216e+10 0.14799989 0.039310029 -37.030475 46.658613 6525.5643 3.5484320e+10 0.15324662 0.039717808 -37.112157 46.569828 6527.6005 3.2413868e+10 0.15864306 0.041152413 -37.193838 46.481044 6529.6366 3.0015713e+10 0.16316046 0.043249806 -37.275516 46.392263 6531.6727 2.7928232e+10 0.16704144 0.046207811 -37.357187 46.303490 6533.7088 2.5964903e+10 0.16990585 0.047820818 -37.438858 46.214718 6535.7450 2.4030637e+10 0.17106775 0.047901140 -37.523613 46.120437 6537.7811 2.2083937e+10 0.17285982 0.049053468 -37.611500 46.020567 6539.8172 2.0257505e+10 0.17318624 0.050632825 -37.699387 45.920696 6541.8533 1.8677771e+10 0.17128068 0.051049804 -37.781101 45.831845 6543.8894 1.7393753e+10 0.16915164 0.051615332 -37.862772 45.743073 6545.9256 1.6363391e+10 0.16719763 0.052463859 -37.943815 45.654300 6547.9617 1.5450930e+10 0.16629620 0.053653077 -38.021935 45.565527 6549.9978 1.4604984e+10 0.16524391 0.054983130 -38.100055 45.476755 6552.0339 1.3775726e+10 0.16377698 0.055578225 -38.181702 45.383974 6554.0701 1.2884615e+10 0.16175692 0.054833850 -38.269601 45.284088 6556.1062 1.2011600e+10 0.16007991 0.053997515 -38.357500 45.184202 6558.1423 1.1215612e+10 0.15877924 0.053118044 -38.433965 45.093849 6560.1784 1.0524687e+10 0.15690844 0.052113434 -38.508535 45.005077 6562.2145 9.9395808e+09 0.15471576 0.050675751 -38.583105 44.916156 6564.2507 9.4005654e+09 0.15232874 0.048657993 -38.657674 44.823833 6566.2868 8.9275761e+09 0.15049400 0.047020645 -38.732242 44.731510 6568.3229 8.4424973e+09 0.14914150 0.045474823 -38.809813 44.637486 6570.3590 7.9244273e+09 0.14796295 0.044768782 -38.897699 44.537615 6572.3952 7.4003624e+09 0.14647868 0.044003855 -38.985584 44.437744 6574.4313 6.9140547e+09 0.14438047 0.042647859 -39.061288 44.345888 6576.4674 6.5346933e+09 0.14209926 0.040833395 -39.132306 44.257115 6578.5035 6.2163550e+09 0.13934225 0.037854478 -39.203325 44.168343 6580.5397 5.9339138e+09 0.13655926 0.036022033 -39.277569 44.079559 6582.5758 5.6897039e+09 0.13406285 0.035137109 -39.352147 43.990775 6584.6119 5.4418431e+09 0.13168608 0.034182185 -39.427206 43.900990 6586.6480 5.1712066e+09 0.12970093 0.033162919 -39.507103 43.801119 6588.6841 4.8696083e+09 0.12831115 0.033151458 -39.587000 43.701248 6590.7203 4.5665564e+09 0.12646262 0.029722252 -39.663770 43.607892 6592.7564 4.3020642e+09 0.12474790 0.027338838 -39.738340 43.519119 6594.7925 4.0838080e+09 0.12270450 0.025737470 -39.812910 43.430347 6596.8286 3.8890992e+09 0.12032104 0.025723506 -39.882005 43.341574 6598.8648 3.7228441e+09 0.11849650 0.024994298 -39.949472 43.252801 6600.9009 3.5617714e+09 0.11837636 0.026841927 -40.016939 43.164028 6602.9370 3.3865293e+09 0.11744468 0.026717029 -40.096272 43.064661 6604.9731 3.1957909e+09 0.11668413 0.026649089 -40.176169 42.964791 6607.0093 2.9961597e+09 0.11555598 0.025688724 -40.252061 42.869924 6609.0454 2.8200147e+09 0.11259338 0.023719410 -40.323088 42.781140 6611.0815 2.6718614e+09 0.10968818 0.024906484 -40.394114 42.692355 6613.1176 2.5440336e+09 0.10852314 0.023616746 -40.462879 42.603578 6615.1537 2.4299897e+09 0.10697987 0.023256262 -40.530347 42.514805 6617.1899 2.3261717e+09 0.10534312 0.023502199 -40.597816 42.426033 6619.2260 2.2158190e+09 0.10426223 0.024580442 -40.672194 42.324893 6621.2621 2.0964622e+09 0.10304548 0.025002568 -40.748095 42.221029 6623.2982 1.9783858e+09 0.10115220 0.024602318 -40.821330 42.121935 6625.3344 1.8791605e+09 0.099392679 0.025796595 -40.888798 42.033162 6627.3705 1.7978228e+09 0.096961778 0.025459922 -40.956266 41.944390 6629.4066 1.7266721e+09 0.095488884 0.026035590 -41.027951 41.850068 6631.4427 1.6464756e+09 0.093772400 0.025975738 -41.103852 41.750197 6633.4789 1.5648894e+09 0.092648198 0.026235855 -41.179728 41.650350 6635.5150 1.4877753e+09 0.091452858 0.026477016 -41.243717 41.561506 6637.5511 1.4237976e+09 0.090382795 0.025891502 -41.307642 41.472722 6639.5872 1.3673739e+09 0.089904290 0.025418189 -41.373011 41.381931 6641.6233 1.3084129e+09 0.090273372 0.025150417 -41.444919 41.282060 6643.6595 1.2455909e+09 0.089529672 0.025292190 -41.516826 41.182188 6645.6956 1.1778501e+09 0.088677087 0.025777541 -41.585724 41.089839 6647.7317 1.1268414e+09 0.087663572 0.026823029 -41.653191 41.001066 6649.7678 1.0807610e+09 0.086744207 0.026575267 -41.720657 40.912294 6651.8040 1.0375344e+09 0.086121670 0.027100282 -41.791950 40.813960 6653.8401 9.9150665e+08 0.085426793 0.027954576 -41.863857 40.714089 6655.8762 9.4015257e+08 0.083751864 0.027972265 -41.931629 40.618195 6657.9123 8.9944153e+08 0.082233144 0.029959379 -41.991995 40.529422 6659.9484 8.6644912e+08 0.080666706 0.031636751 -42.052361 40.440650 6661.9846 8.3759065e+08 0.078977217 0.033036413 -42.118983 40.345860 6664.0207 8.0435371e+08 0.077464153 0.032130371 -42.190889 40.245989 6666.0568 7.6364000e+08 0.077441106 0.026919667 -42.262346 40.146549 6668.0929 7.2761391e+08 0.076527131 0.027553020 -42.322720 40.057764 6670.1291 6.9773709e+08 0.075784771 0.027268840 -42.383094 39.968980 6672.1652 6.7502159e+08 0.075235423 0.026975344 -42.446041 39.877722 6674.2013 6.4996196e+08 0.074192891 0.029124608 -42.517948 39.777852 6676.2374 6.2183516e+08 0.072042313 0.031866747 -42.589855 39.677981 6678.2736 5.9495066e+08 0.071297363 0.030753649 -42.653454 39.586099 6680.3097 5.7182178e+08 0.071811234 0.029508288 -42.713819 39.497327 6682.3458 5.5123550e+08 0.072529542 0.030688747 -42.774183 39.408554 6684.3819 5.2717369e+08 0.072687855 0.032673473 -42.837759 39.309752 6686.4180 5.0114024e+08 0.071842345 0.034004310 -42.901676 39.209880 6688.4542 4.7755612e+08 0.069420874 0.033890028 -42.967194 39.110009 6690.4903 4.5568640e+08 0.068095726 0.033059676 -43.035107 39.010139 6692.5264 4.3525433e+08 0.067249405 0.032154036 -43.103019 38.910268 6694.5625 4.1364955e+08 0.066580034 0.030472602 -43.164167 38.820344 6696.5987 3.9607431e+08 0.066254021 0.029924516 -43.224540 38.731559 6698.6348 3.8416206e+08 0.065127982 0.031089129 -43.285201 38.641873 6700.6709 3.7402917e+08 0.063368784 0.031165348 -43.349118 38.542002 6702.7070 3.6142554e+08 0.062584412 0.033441296 -43.413036 38.442131 6704.7432 3.4393799e+08 0.062742255 0.036542480 -43.476953 38.342260 6706.7793 3.2898347e+08 0.062369786 0.039802670 -43.540870 38.242390 6708.8154 3.1338406e+08 0.061775475 0.040931517 -43.605087 38.142519 6710.8515 2.9766485e+08 0.060154570 0.040663169 -43.673000 38.042647 6712.8876 2.8346942e+08 0.058147535 0.043478015 -43.740913 37.942776 6714.9238 2.7036522e+08 0.056094541 0.047372857 -43.800451 37.849250 6716.9599 2.6165661e+08 0.053980986 0.049815188 -43.853714 37.760477 6718.9960 2.5568948e+08 0.051545760 0.051363626 -43.906976 37.671705 6721.0321 2.4611586e+08 0.051945394 0.050313581 -43.968290 37.574547 6723.0683 2.3609306e+08 0.050869879 0.049407012 -44.032209 37.474676 6725.1044 2.2444329e+08 0.046721195 0.041510819 -44.096127 37.374806 6727.1405 2.1480374e+08 0.045182919 0.040773196 -44.160044 37.274935 6729.1766 2.0510957e+08 0.044701872 0.040927702 -44.223962 37.175064 6731.2127 1.9686178e+08 0.042891518 0.042173434 -44.284886 37.075193 6733.2489 1.9112494e+08 0.041695439 0.045275502 -44.344808 36.975322 6735.2850 1.8365446e+08 0.042066094 0.049595975 -44.405715 36.875447 6737.3211 1.7979380e+08 0.043431297 0.055158492 -44.469641 36.775561 6739.3572 1.7260628e+08 0.043692292 0.063263746 -44.533568 36.675675 6741.3934 1.6674788e+08 0.042095164 0.066880585 -44.594520 36.575801 6743.4295 1.6238441e+08 0.038079724 0.073944740 -44.654443 36.475930 6745.4656 1.5559511e+08 0.035733875 0.078762625 -44.714366 36.376059 6747.5017 1.4656342e+08 0.031200938 0.067188434 -44.774288 36.276188 6749.5379 1.3732679e+08 0.029697632 0.072130668 -44.834209 36.176317 6751.5740 1.3133350e+08 0.026704973 0.073954352 -44.894132 36.076447 6753.6101 1.2615496e+08 0.024851809 0.074951685 -44.954055 35.976576 6755.6462 1.2399829e+08 0.022698500 0.074322018 -45.013978 35.876705 6757.6823 1.1714189e+08 0.021268614 0.074669318 -45.073902 35.776834 6759.7185 1.1075965e+08 0.021870616 0.075993333 -45.133825 35.676962 6761.7546 1.0729379e+08 0.024612208 0.078030569 -45.193747 35.577091 6763.7907 1.0687875e+08 0.028191755 0.078845903 -45.253669 35.477220 6765.8268 1.0720973e+08 0.030126048 0.079682135 -45.312684 35.377350 6767.8630 1.0249434e+08 0.027693646 0.081009474 -45.368612 35.277479 6769.8991 96270338. 0.023151041 0.086634933 -45.424539 35.177608 6771.9352 90451180. 0.019312192 0.091573426 -45.483358 35.077737 6773.9713 88176536. 0.015611218 0.096511920 -45.543281 34.977867 6776.0075 85187207. 0.011817858 0.10145041 -45.604084 34.875857 6778.0436 80582401. 0.0078290470 0.10638891 -45.668003 34.766281 6780.0797 75256010. 0.0036182587 0.11132740 -45.731682 34.656996 6782.1158 72032615. -0.00066751955 0.11626589 -45.787609 34.557126 6784.1519 72709739. -0.0048922501 0.12120439 -45.843536 34.457255 6786.1881 72808329. -0.0096672014 0.12614288 -45.899468 34.357376 6788.2242 69141672. -0.015985519 0.13108137 -45.955404 34.257490 6790.2603 63585937. -0.026163975 0.13601986 -46.011531 34.157263 6792.2964 58642810. -0.067079803 0.14095836 -46.075451 34.043122 6794.3326 55251957. -0.042226983 0.14589685 -46.139371 33.928982 6796.3687 54896727. 0.022298267 0.15083534 -46.196628 33.826738