# # 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 = 34.463902 km # Date (UTC) = 2017-01-30T10:21:27.542 # Date (julian) = 2457783.93156877 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6511.4066 6.8112654e+10 0.11489799 0.035722846 -24.870719 62.676950 6512.3663 6.1600694e+10 0.11962288 0.036012228 -25.016574 62.595480 6513.3259 5.6209209e+10 0.12441988 0.036301609 -25.146092 62.520179 6514.2856 5.2902192e+10 0.12946370 0.036590990 -25.275611 62.444877 6515.2452 4.9873643e+10 0.13453935 0.036880371 -25.405139 62.370388 6516.2049 4.7245457e+10 0.13966800 0.037169753 -25.534689 62.298081 6517.1646 4.5066768e+10 0.14486802 0.037459134 -25.664239 62.225775 6518.1242 4.2975794e+10 0.15007465 0.037748515 -25.793788 62.153468 6519.0839 4.0658192e+10 0.15523345 0.038037896 -25.950597 62.060360 6520.0435 3.7781280e+10 0.16028977 0.038327278 -26.108777 61.966205 6521.0032 3.4659561e+10 0.16527370 0.038616659 -26.256661 61.877647 6521.9628 3.2038373e+10 0.17029577 0.038906040 -26.380156 61.802345 6522.9225 2.9992955e+10 0.17281779 0.039158812 -26.503650 61.727044 6523.8821 2.8420974e+10 0.17496845 0.039397747 -26.627145 61.651742 6524.8418 2.7077927e+10 0.17812557 0.039726009 -26.750669 61.579365 6525.8014 2.5740179e+10 0.17872986 0.039690748 -26.874194 61.507058 6526.7611 2.4570309e+10 0.18128560 0.040466005 -26.997718 61.434751 6527.7207 2.3551573e+10 0.18272464 0.041239744 -27.117280 61.360462 6528.6804 2.2613083e+10 0.18336787 0.041982248 -27.234779 61.285142 6529.6401 2.1648859e+10 0.18485330 0.043255341 -27.352278 61.209822 6530.5997 2.0674963e+10 0.18505803 0.044668283 -27.469767 61.134508 6531.5594 1.9783859e+10 0.18573200 0.046042844 -27.587238 61.059206 6532.5190 1.8913911e+10 0.18649578 0.047117779 -27.704708 60.983905 6533.4787 1.8143579e+10 0.18607855 0.047723010 -27.822179 60.908547 6534.4383 1.7373103e+10 0.18580915 0.048067175 -27.939678 60.830215 6535.3980 1.6702429e+10 0.18502000 0.048051652 -28.057176 60.751883 6536.3576 1.6070066e+10 0.18379489 0.048110490 -28.174674 60.673551 6537.3173 1.5409642e+10 0.18395431 0.048834816 -28.290066 60.597326 6538.2769 1.4752909e+10 0.18296754 0.049291540 -28.404553 60.522006 6539.2366 1.4186217e+10 0.18199779 0.049930030 -28.519039 60.446687 6540.1963 1.3666596e+10 0.18151814 0.050946819 -28.632379 60.371367 6541.1559 1.3174417e+10 0.17943688 0.051275968 -28.743853 60.296047 6542.1156 1.2668497e+10 0.17829295 0.051046113 -28.855326 60.220727 6543.0752 1.2124068e+10 0.17685342 0.051401635 -28.966614 60.145224 6544.0349 1.1606488e+10 0.17513005 0.051672639 -29.075049 60.066910 6544.9945 1.1097151e+10 0.17449493 0.052451129 -29.183483 59.988595 6545.9542 1.0664031e+10 0.17194125 0.052464116 -29.291918 59.910281 6546.9138 1.0228745e+10 0.17121222 0.053216467 -29.400371 59.834186 6547.8735 9.7954115e+09 0.16958816 0.053619538 -29.508832 59.758866 6548.8331 9.3743982e+09 0.16763664 0.053916452 -29.617292 59.683547 6549.7928 8.9399886e+09 0.16670533 0.054774208 -29.724482 59.606956 6550.7525 8.5687866e+09 0.16479510 0.055173768 -29.829930 59.528624 6551.7121 8.2336625e+09 0.16367550 0.055485713 -29.935377 59.450292 6552.6718 7.8697553e+09 0.16242548 0.055417684 -30.040822 59.371962 6553.6314 7.5384046e+09 0.16072940 0.055017661 -30.146244 59.293647 6554.5911 7.2050754e+09 0.15954382 0.054844784 -30.251667 59.215333 6555.5507 6.8878325e+09 0.15794859 0.054390621 -30.357089 59.137018 6556.5104 6.6208869e+09 0.15640305 0.053938090 -30.460173 59.061048 6557.4700 6.3375135e+09 0.15511102 0.053571487 -30.562608 58.985728 6558.4297 6.0808785e+09 0.15328903 0.052873154 -30.665043 58.910408 6559.3893 5.8439872e+09 0.15157879 0.052343235 -30.766081 58.833692 6560.3490 5.6014655e+09 0.14993434 0.051959640 -30.865503 58.755360 6561.3087 5.3621433e+09 0.14790739 0.051220583 -30.964925 58.677028 6562.2683 5.1270822e+09 0.14650326 0.050624597 -31.064343 58.598699 6563.2280 4.9183029e+09 0.14460613 0.049664665 -31.163742 58.520384 6564.1876 4.7020963e+09 0.14274337 0.048686569 -31.263141 58.442070 6565.1473 4.5004573e+09 0.14155519 0.048151167 -31.362539 58.363755 6566.1069 4.3077579e+09 0.13958750 0.047122396 -31.448295 58.296190 6567.0666 4.1657304e+09 0.13845252 0.046560891 -31.531143 58.230916 6568.0262 4.0742483e+09 0.13682075 0.045747545 -31.613991 58.165642 6568.9859 3.9762627e+09 0.13491136 0.044865394 -31.696840 58.100368 6569.9455 3.8623535e+09 0.13394519 0.044913965 -31.788561 58.024110 6570.9052 3.7263174e+09 0.13222852 0.044542545 -31.881958 57.945778 6571.8649 3.5878217e+09 0.13110839 0.044267067 -31.975354 57.867446 6572.8245 3.4476070e+09 0.12980281 0.043757981 -32.070324 57.789114 6573.7842 3.3031768e+09 0.12829575 0.043028210 -32.166733 57.710781 6574.7438 3.1355269e+09 0.12743240 0.042497752 -32.263142 57.632448 6575.7035 2.9900188e+09 0.12609205 0.041668905 -32.355783 57.556254 6576.6631 2.8777117e+09 0.12484944 0.040608122 -32.433611 57.488468 6577.6228 2.8002151e+09 0.12342541 0.039242135 -32.511438 57.420683 6578.5824 2.7601670e+09 0.12155890 0.037729882 -32.589266 57.352898 6579.5421 2.7105938e+09 0.12006908 0.036772487 -32.669847 57.282800 6580.5017 2.6363247e+09 0.11861021 0.036057069 -32.760209 57.204487 6581.4614 2.5466616e+09 0.11720182 0.035456891 -32.850570 57.126174 6582.4211 2.4498756e+09 0.11612066 0.035179215 -32.940932 57.047860 6583.3807 2.3492257e+09 0.11483198 0.034828970 -33.031313 56.969529 6584.3404 2.2459286e+09 0.11359604 0.034330103 -33.121697 56.891196 6585.3000 2.1483442e+09 0.11252705 0.033730917 -33.212080 56.812863 6586.2597 2.0646926e+09 0.11112593 0.033167939 -33.292261 56.740653 6587.2193 1.9973798e+09 0.11015475 0.033206963 -33.365067 56.672867 6588.1790 1.9476045e+09 0.10892899 0.033320160 -33.437874 56.605082 6589.1386 1.8962917e+09 0.10743158 0.032770940 -33.510681 56.537296 6590.0983 1.8394131e+09 0.10617608 0.030879237 -33.592174 56.463223 6591.0579 1.7848734e+09 0.10433625 0.029136528 -33.679524 56.384910 6592.0176 1.7224032e+09 0.10313998 0.028056435 -33.766874 56.306597 6592.9773 1.6605883e+09 0.10191619 0.027124316 -33.853395 56.228278 6593.9369 1.6099388e+09 0.10052074 0.026231182 -33.937752 56.149946 6594.8966 1.5356752e+09 0.099544145 0.025680355 -34.022110 56.071614 6595.8562 1.4681818e+09 0.098036239 0.025712363 -34.106467 55.993282 6596.8159 1.4104107e+09 0.097058932 0.025723564 -34.177352 55.925055 6597.7755 1.3537040e+09 0.096212313 0.025478001 -34.247647 55.857270 6598.7352 1.3153929e+09 0.095174509 0.025056165 -34.317943 55.789485 6599.6948 1.2834178e+09 0.094962671 0.024971521 -34.388240 55.721698 6600.6545 1.2553037e+09 0.094731896 0.026335379 -34.472244 55.643630 6601.6141 1.2292575e+09 0.094302715 0.027334916 -34.556602 55.565297 6602.5738 1.1859271e+09 0.093766519 0.027026979 -34.640959 55.486964 6603.5335 1.1343459e+09 0.093036382 0.026347472 -34.714449 55.415548 6604.4931 1.0946911e+09 0.092656212 0.026364066 -34.782234 55.347763 6605.4528 1.0639060e+09 0.092465008 0.027044872 -34.850019 55.279978 6606.4124 1.0419565e+09 0.091810084 0.026762869 -34.917804 55.212193 6607.3721 1.0157222e+09 0.090791772 0.024972300 -34.994697 55.135300 6608.3317 9.6520454e+08 0.089532979 0.023723601 -35.076023 55.053975 6609.2914 9.2609024e+08 0.088156228 0.023792484 -35.157349 54.972649 6610.2510 8.9274291e+08 0.086980685 0.024242834 -35.233015 54.896983 6611.2107 8.6850092e+08 0.085588850 0.024824100 -35.298290 54.831708 6612.1703 8.5736082e+08 0.084952952 0.024193480 -35.363566 54.766434 6613.1300 8.3071186e+08 0.084641604 0.023621286 -35.428841 54.701160 6614.0896 8.1377337e+08 0.084004128 0.023878727 -35.494116 54.634958 6615.0493 8.0516992e+08 0.083470305 0.023253049 -35.559390 54.567173 6616.0090 7.9281420e+08 0.082557185 0.023283705 -35.624664 54.499388 6616.9686 7.7401032e+08 0.082320031 0.023434323 -35.689938 54.431603 6617.9283 7.6181623e+08 0.082196588 0.023747013 -35.759092 54.358580 6618.8879 7.2650816e+08 0.081930792 0.024441282 -35.834411 54.277234 6619.8476 6.9062548e+08 0.081982957 0.024730420 -35.909731 54.195889 6620.8072 6.4884757e+08 0.081760872 0.025027327 -35.984208 54.115454 6621.7669 6.0400642e+08 0.081532715 0.024835259 -36.046959 54.047682 6622.7265 5.9062553e+08 0.080916692 0.024564612 -36.109711 53.979910 6623.6862 5.8275610e+08 0.079982976 0.024746050 -36.172463 53.912138 6624.6458 5.6927712e+08 0.079540377 0.025208029 -36.236259 53.843489 6625.6055 5.5471513e+08 0.079074499 0.026120151 -36.311578 53.765157 6626.5652 5.2648717e+08 0.078218276 0.025870841 -36.386898 53.686825 6627.5248 4.9492944e+08 0.077702878 0.025519537 -36.462218 53.608493 6628.4845 4.7935795e+08 0.077285030 0.025899793 -36.527946 53.538218 6629.4441 4.4498862e+08 0.076942806 0.026028807 -36.590710 53.470433 6630.4038 4.1554878e+08 0.076445247 0.025929297 -36.653473 53.402648 6631.3634 3.9788896e+08 0.075692824 0.025967683 -36.716237 53.334863 6632.3231 3.7694650e+08 0.075254014 0.026071086 -36.777041 53.267078 6633.2827 3.6625658e+08 0.074674261 0.026201616 -36.837295 53.199293 6634.2424 3.5142535e+08 0.073988677 0.026344524 -36.897549 53.131508 6635.2020 3.1883673e+08 0.073804174 0.026430088 -36.957803 53.063723 6636.1617 2.9865882e+08 0.073227437 0.026486957 -37.025253 52.985138 6637.1214 2.8793231e+08 0.072857720 0.026101975 -37.094531 52.903812 6638.0810 2.7009625e+08 0.072775267 0.025668113 -37.163808 52.822486 6639.0407 2.6597556e+08 0.072228271 0.025613540 -37.228776 52.747627 6640.0003 2.4854219e+08 0.073050479 0.025270613 -37.289029 52.679841 6640.9600 2.3398597e+08 0.073460242 0.025153198 -37.349282 52.612055 6641.9196 2.2406732e+08 0.073611856 0.025151423 -37.409535 52.544270 6642.8793 2.1515593e+08 0.073519268 0.025187678 -37.468547 52.476485 6643.8389 2.0816298e+08 0.073062101 0.025319288 -37.526290 52.408701 6644.7986 1.9732845e+08 0.073045580 0.025429917 -37.584033 52.340917 6645.7582 1.9202577e+08 0.072659218 0.025806894 -37.641775 52.273132 6646.7179 1.9264332e+08 0.072164413 0.026291756 -37.703883 52.198415 6647.6776 1.9433648e+08 0.071769296 0.026794516 -37.770165 52.117070 6648.6372 1.8769653e+08 0.071385808 0.027390834 -37.836447 52.035725 6649.5969 1.7700128e+08 0.071512533 0.026810940 -37.901089 51.956983 6650.5565 1.6643958e+08 0.071750243 0.026382640 -37.958831 51.889198 6651.5162 1.7061876e+08 0.071456252 0.026879737 -38.016574 51.821413 6652.4758 1.6306148e+08 0.071657229 0.027381440 -38.074317 51.753628 6653.4355 1.5099582e+08 0.071912261 0.027748003 -38.131535 51.685843 6654.3951 1.4494995e+08 0.071721539 0.027867894 -38.186767 51.618058 6655.3548 1.4277674e+08 0.071166999 0.027756816 -38.242000 51.550273 6656.3144 1.4949296e+08 0.070083153 0.028299404 -38.297232 51.482488 6657.2741 1.4730306e+08 0.069586964 0.029219058 -38.351896 51.414706 6658.2338 1.4455366e+08 0.069173894 0.030475646 -38.404607 51.346934 6659.1934 1.5013714e+08 0.068215678 0.031794253 -38.457318 51.279163 6660.1531 1.6156230e+08 0.067415571 0.031765124 -38.510029 51.211391 6661.1127 1.7539194e+08 0.066252140 0.032592359 -38.566020 51.140338 6662.0724 1.7809507e+08 0.065518891 0.033003666 -38.632302 51.058992 6663.0320 1.7598106e+08 0.065000469 0.032474337 -38.698584 50.977646 6663.9917 1.7622075e+08 0.063990416 0.032208394 -38.764867 50.896300 6664.9513 1.6828382e+08 0.064164085 0.028725194 -38.818638 50.827465 6665.9110 1.6913823e+08 0.063792425 0.027054442 -38.871360 50.759679 6666.8706 1.6379350e+08 0.063332281 0.027078251 -38.924081 50.691894 6667.8303 1.6526750e+08 0.062621635 0.027408441 -38.976803 50.624109 6668.7900 1.7094329e+08 0.061522152 0.028169826 -39.029524 50.556324 6669.7496 1.6621599e+08 0.061228615 0.027585804 -39.082246 50.488539 6670.7093 1.6957415e+08 0.060851381 0.027000043 -39.134967 50.420754 6671.6689 1.6060938e+08 0.060351511 0.026874881 -39.187688 50.352969 6672.6286 1.5117997e+08 0.059784562 0.027243930 -39.238010 50.285185 6673.5882 1.4284272e+08 0.058921004 0.028338951 -39.288221 50.217400 6674.5479 1.3039092e+08 0.057634281 0.029416963 -39.338432 50.149616 6675.5075 1.2685412e+08 0.056071093 0.030770471 -39.388644 50.081832 6676.4672 1.1975696e+08 0.054372061 0.032014824 -39.441287 50.014060 6677.4268 1.1752558e+08 0.053194232 0.031751416 -39.493998 49.946289 6678.3865 1.0964477e+08 0.051748670 0.030678108 -39.546709 49.878517 6679.3462 99628978. 0.049652098 0.029981727 -39.599454 49.810670 6680.3058 91183865. 0.045725594 0.029507453 -39.659593 49.726569 6681.2655 75160445. 0.018302210 0.029861016 -39.719849 49.642210 6682.2251 57544053. 0.030918639 0.030596539 -39.780105 49.557851 6683.1848 53045536. 0.091461529 0.031459363 -39.831951 49.484594