# # 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 = 49.901369 km # Date (UTC) = 2014-12-12T10:12:05.834 # Date (julian) = 2457003.92506752 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6504.8737 5.0885539e+10 0.063712867 0.033752853 -32.761827 51.479862 6506.6162 4.8710941e+10 0.071930431 0.034278292 -32.847882 51.407887 6508.3586 4.6045165e+10 0.080191617 0.034803731 -32.936008 51.337994 6510.1011 4.3618078e+10 0.088696117 0.035329170 -33.024134 51.268102 6511.8436 4.1206267e+10 0.097357456 0.035854608 -33.112181 51.198132 6513.5861 3.9048190e+10 0.10626548 0.036380047 -33.197267 51.125200 6515.3285 3.7226823e+10 0.11548789 0.036905486 -33.282353 51.052268 6517.0710 3.5328535e+10 0.12485508 0.037430925 -33.367440 50.979336 6518.8135 3.3478535e+10 0.13438158 0.037956364 -33.452525 50.906406 6520.5560 3.1840649e+10 0.14413397 0.038481802 -33.537611 50.833475 6522.2984 3.0330579e+10 0.15324678 0.038995398 -33.622697 50.760545 6524.0409 2.8950937e+10 0.15823770 0.039441491 -33.710989 50.683565 6525.7834 2.7376412e+10 0.16252867 0.039692809 -33.803295 50.601515 6527.5259 2.5492132e+10 0.16735775 0.041098247 -33.895600 50.519465 6529.2683 2.3675146e+10 0.17016480 0.042663210 -33.982587 50.443721 6531.0108 2.2104583e+10 0.17230836 0.045244406 -34.064646 50.373819 6532.7533 2.0763045e+10 0.17567901 0.047313478 -34.146704 50.303918 6534.4958 1.9507571e+10 0.17661891 0.048083239 -34.228760 50.233323 6536.2382 1.8312979e+10 0.17588083 0.048003653 -34.310808 50.160392 6537.9807 1.7293859e+10 0.17656283 0.049147585 -34.392855 50.087460 6539.7232 1.6448629e+10 0.17605813 0.050519021 -34.474903 50.014529 6541.4657 1.5668296e+10 0.17392404 0.051175520 -34.554101 49.941598 6543.2081 1.4804199e+10 0.17227497 0.051436519 -34.633111 49.868667 6544.9506 1.3898362e+10 0.17112415 0.052415499 -34.712120 49.795737 6546.6931 1.2814737e+10 0.16911499 0.053034822 -34.791129 49.722806 6548.4356 1.1802894e+10 0.16757182 0.053797719 -34.870137 49.649874 6550.1780 1.0987054e+10 0.16665017 0.055029937 -34.949145 49.576942 6551.9205 1.0501989e+10 0.16526025 0.055558864 -35.028157 49.504008 6553.6630 9.9030856e+09 0.16338522 0.055001794 -35.107176 49.431067 6555.4055 9.0564666e+09 0.16210813 0.054512682 -35.186195 49.358127 6557.1479 8.2360627e+09 0.16074140 0.053773381 -35.265012 49.285187 6558.8904 7.5525673e+09 0.15862468 0.052480566 -35.340982 49.212256 6560.6329 7.0198202e+09 0.15682243 0.051703681 -35.416952 49.139324 6562.3754 6.5164493e+09 0.15511705 0.050522734 -35.492922 49.066393 6564.1178 6.1747808e+09 0.15271171 0.048718194 -35.568892 48.993462 6565.8603 5.8552241e+09 0.15093349 0.047341502 -35.644862 48.920531 6567.6028 5.6874802e+09 0.14947990 0.046107516 -35.720832 48.847600 6569.3453 5.3071802e+09 0.14792922 0.044874896 -35.796802 48.774669 6571.0877 4.8358637e+09 0.14676753 0.044479312 -35.872772 48.701738 6572.8302 4.4776211e+09 0.14547014 0.043754714 -35.948742 48.628806 6574.5727 4.0907362e+09 0.14388190 0.042579945 -36.024125 48.555873 6576.3152 3.6333635e+09 0.14278965 0.041008634 -36.097067 48.482933 6578.0576 3.5049082e+09 0.14113334 0.038558596 -36.170008 48.409992 6579.8001 3.6365466e+09 0.13867366 0.036630639 -36.242950 48.337052 6581.5426 3.9402487e+09 0.13568321 0.035432305 -36.315882 48.264120 6583.2851 4.1459514e+09 0.13337728 0.034877379 -36.388814 48.191188 6585.0275 3.9205597e+09 0.13209009 0.033948755 -36.461745 48.118256 6586.7700 3.5170757e+09 0.13111117 0.033161342 -36.540262 48.039739 6588.5125 3.1914863e+09 0.13037781 0.033208783 -36.622310 47.957690 6590.2550 2.9414432e+09 0.12925757 0.030587791 -36.704358 47.875640 6591.9974 2.5833654e+09 0.12863332 0.028076414 -36.780139 47.799860 6593.7399 2.4780737e+09 0.12696616 0.026414323 -36.853071 47.726929 6595.4824 2.4498420e+09 0.12465167 0.025673597 -36.926002 47.653999 6597.2249 2.5961311e+09 0.12155868 0.025651768 -36.997732 47.581064 6598.9673 2.7418784e+09 0.11876162 0.024945322 -37.067633 47.508123 6600.7098 2.6625862e+09 0.11856063 0.026449129 -37.137535 47.435181 6602.4523 2.5512497e+09 0.11771952 0.027130664 -37.207436 47.362241 6604.1948 2.3988393e+09 0.11654800 0.026186924 -37.277328 47.289311 6605.9372 2.3024418e+09 0.11601888 0.027451316 -37.347220 47.216380 6607.6797 2.1900949e+09 0.11415320 0.024364805 -37.417112 47.143450 6609.4222 2.0054515e+09 0.11190596 0.023831343 -37.487004 47.070518 6611.1647 1.8805843e+09 0.10946950 0.024853445 -37.556897 46.997586 6612.9071 1.7420711e+09 0.10884815 0.023642968 -37.626789 46.924655 6614.6496 1.6956911e+09 0.10758914 0.023492929 -37.696681 46.850128 6616.3921 1.7097076e+09 0.10584226 0.023343838 -37.766573 46.774158 6618.1346 1.6841498e+09 0.10528516 0.023872413 -37.836465 46.698189 6619.8770 1.6770287e+09 0.10454971 0.024737531 -37.907603 46.620796 6621.6195 1.6206247e+09 0.10364714 0.024884103 -37.982815 46.538748 6623.3620 1.5523730e+09 0.10241424 0.024625940 -38.058027 46.456699 6625.1045 1.4240790e+09 0.10197628 0.025522272 -38.130659 46.377465 6626.8469 1.2227819e+09 0.10163738 0.025511813 -38.197522 46.304524 6628.5894 1.0642100e+09 0.10219826 0.025942407 -38.264385 46.231582 6630.3319 1.0107320e+09 0.10141784 0.025929120 -38.331247 46.158641 6632.0744 1.0706311e+09 0.099032487 0.026041263 -38.398100 46.085710 6633.8168 1.1770009e+09 0.096444949 0.026294866 -38.464953 46.012778 6635.5593 1.1919379e+09 0.094793472 0.026483667 -38.531805 45.939846 6637.3018 1.1558757e+09 0.093614726 0.026013599 -38.596447 45.866915 6639.0443 1.1271956e+09 0.092493073 0.025612250 -38.660262 45.793985 6640.7868 1.0953772e+09 0.092902331 0.025174392 -38.724076 45.721054 6642.5292 1.0664441e+09 0.092437310 0.025173353 -38.791379 45.644137 6644.2717 1.0266460e+09 0.091331079 0.025372971 -38.863172 45.562088 6646.0142 9.7505614e+08 0.090394605 0.025927485 -38.934966 45.480039 6647.7567 9.2154490e+08 0.089553243 0.026836161 -39.002679 45.401097 6649.4991 8.6724738e+08 0.088668033 0.026945665 -39.066502 45.325117 6651.2416 8.2780118e+08 0.088119705 0.026669319 -39.130324 45.249137 6652.9841 8.0178388e+08 0.087624608 0.027521281 -39.194145 45.173833 6654.7266 7.7855384e+08 0.086507261 0.027726707 -39.257960 45.100902 6656.4690 7.5320364e+08 0.084908442 0.028435081 -39.321774 45.027972 6658.2115 7.3137049e+08 0.083784837 0.030436185 -39.385589 44.955042 6659.9540 7.0024933e+08 0.082772532 0.031635597 -39.456830 44.873622 6661.6965 6.6265572e+08 0.081698260 0.032889669 -39.528622 44.791573 6663.4389 6.2894962e+08 0.080850865 0.032361575 -39.600295 44.709622 6665.1814 6.0150190e+08 0.080697883 0.028249892 -39.661127 44.636646 6666.9239 5.8826999e+08 0.080261246 0.027088625 -39.721904 44.563715 6668.6664 5.7461620e+08 0.079203724 0.028060452 -39.782680 44.490784 6670.4088 5.5692060e+08 0.079096635 0.027139228 -39.843456 44.417853 6672.1513 5.3820190e+08 0.078802375 0.026967299 -39.904232 44.344921 6673.8938 5.1916614e+08 0.078093635 0.028795934 -39.965008 44.271990 6675.6363 5.0295293e+08 0.076276401 0.031017023 -40.029012 44.193734 6677.3787 4.8360555e+08 0.074922106 0.031819810 -40.097397 44.108254 6679.1212 4.6461070e+08 0.074389656 0.030167611 -40.165782 44.022773 6680.8637 4.5010576e+08 0.075181053 0.029627922 -40.230365 43.943563 6682.6062 4.3438763e+08 0.075601480 0.030887671 -40.291141 43.870633 6684.3486 4.2445167e+08 0.075408266 0.032671783 -40.351917 43.797702 6686.0911 4.1464234e+08 0.074638834 0.033814093 -40.413566 43.722867 6687.8336 4.0032943e+08 0.072519029 0.033878002 -40.478521 43.640818 6689.5761 3.8421521e+08 0.070508487 0.033497478 -40.543476 43.558768 6691.3185 3.6843010e+08 0.069657006 0.032926110 -40.606383 43.479305 6693.0610 3.5524141e+08 0.069008270 0.031583159 -40.664120 43.406374 6694.8035 3.4470887e+08 0.068463319 0.030134899 -40.721857 43.333442 6696.5460 3.3546259e+08 0.068122496 0.029902621 -40.779625 43.260456 6698.2884 3.2366243e+08 0.067349802 0.030613729 -40.844499 43.175131 6700.0309 3.1309310e+08 0.066059457 0.030690647 -40.909455 43.089663 6701.7734 3.0120132e+08 0.064580036 0.032544224 -40.973921 43.005047 6703.5159 2.9116302e+08 0.064749017 0.034966087 -41.031658 42.932117 6705.2583 2.8353423e+08 0.064762320 0.037127878 -41.089394 42.859186 6707.0008 2.7713366e+08 0.064283269 0.040186710 -41.147131 42.786256 6708.7433 2.6694339e+08 0.063769287 0.040852993 -41.210485 42.706229 6710.4858 2.5783526e+08 0.062437026 0.040591577 -41.275450 42.624167 6712.2282 2.4537868e+08 0.060622072 0.042253722 -41.340415 42.542105 6713.9707 2.3909004e+08 0.058637439 0.047197488 -41.399219 42.467827 6715.7132 2.3565627e+08 0.057070769 0.048108018 -41.456957 42.394897 6717.4557 2.2559124e+08 0.055201790 0.049846083 -41.514694 42.321966 6719.1981 2.1901532e+08 0.053200014 0.051181591 -41.574566 42.243914 6720.9406 2.0786628e+08 0.053449420 0.050310779 -41.636103 42.161864 6722.6831 1.9958168e+08 0.052523754 0.049760726 -41.697640 42.079815 6724.4256 1.9352607e+08 0.049598429 0.046372910 -41.759176 41.995590 6726.1680 1.8639947e+08 0.046700822 0.040952883 -41.820713 41.910122 6727.9105 1.8175225e+08 0.045878044 0.039747317 -41.882250 41.824654 6729.6530 1.7840752e+08 0.044696852 0.040610192 -41.938921 41.748107 6731.3955 1.7551608e+08 0.043047301 0.042537078 -41.993620 41.675176 6733.1379 1.7176286e+08 0.041984209 0.044673238 -42.048318 41.602246 6734.8804 1.6425407e+08 0.041856180 0.049300627 -42.105894 41.525478 6736.6229 1.5662690e+08 0.043064055 0.052709891 -42.167429 41.443429 6738.3654 1.4943721e+08 0.043682421 0.059332614 -42.228965 41.361379 6740.1078 1.4709927e+08 0.043210436 0.064234595 -42.288811 41.279324 6741.8503 1.4587197e+08 0.041304064 0.068183852 -42.346938 41.197264 6743.5928 1.3902154e+08 0.037374632 0.075046417 -42.405065 41.115204 6745.3353 1.3088470e+08 0.035372732 0.078707831 -42.465139 41.031198 6747.0777 1.2448696e+08 0.030633096 0.067334396 -42.526676 40.945730 6748.8202 1.2156793e+08 0.030694746 0.071332109 -42.588213 40.860263 6750.5627 1.1755154e+08 0.027813506 0.072964957 -42.643369 40.782893 6752.3052 1.1379335e+08 0.025036084 0.073781336 -42.695028 40.709961 6754.0476 1.0784071e+08 0.023889776 0.076136850 -42.746687 40.637029 6755.7901 1.0499169e+08 0.021789089 0.074258927 -42.800640 40.560859 6757.5326 1.0471141e+08 0.020598611 0.075123765 -42.858759 40.478809 6759.2751 1.0363472e+08 0.021296352 0.075886334 -42.916878 40.396760 6761.0175 98917619. 0.021363192 0.077969675 -42.974996 40.314710 6762.7600 92626226. 0.025760485 0.076824865 -43.033114 40.232662 6764.5025 87408051. 0.027589947 0.079507359 -43.091231 40.150614 6766.2450 81845039. 0.028081322 0.080267883 -43.147622 40.068566 6767.9874 81919922. 0.025352409 0.080870079 -43.202321 39.986516 6769.7299 78356664. 0.020928292 0.086224649 -43.257020 39.904467 6771.4724 74419339. 0.016926629 0.090450918 -43.313703 39.820435 6773.2149 70440872. 0.012484326 0.094677187 -43.371821 39.734968 6774.9574 63641625. 0.0067370837 0.098903455 -43.429940 39.649500 6776.6998 60243061. -0.00014580351 0.10312972 -43.485825 39.566264 6778.4423 57027170. -0.011711320 0.10735599 -43.540532 39.484203 6780.1848 56568921. -0.060127963 0.11158226 -43.595239 39.402143 6781.9273 54368170. -0.026363540 0.11580853 -43.652437 39.320090 6783.6697 52014119. 0.055040323 0.12003480 -43.710554 39.238040