# # 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 = 43.447430 km # Date (UTC) = 2013-01-04T10:19:07.972 # Date (julian) = 2456296.92995337 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6483.3883 1.2643568e+11 0.028486556 0.027273982 -36.412672 48.007330 6485.4950 1.0848476e+11 0.034726098 0.027909260 -36.516021 47.903981 6487.6017 9.4276685e+10 0.040521020 0.028544538 -36.619371 47.800631 6489.7084 8.3494432e+10 0.045724743 0.029179817 -36.719800 47.697293 6491.8152 7.5018911e+10 0.050416302 0.029815095 -36.819000 47.593958 6493.9219 6.7834266e+10 0.054745316 0.030450373 -36.915067 47.492844 6496.0286 6.2323065e+10 0.058575601 0.031085652 -37.003244 47.397318 6498.1354 5.8124394e+10 0.062010803 0.031720930 -37.091422 47.301793 6500.2421 5.4537973e+10 0.065217142 0.032356208 -37.183475 47.201875 6502.3488 5.1005371e+10 0.068151805 0.032991486 -37.278542 47.098541 6504.4555 4.7451355e+10 0.070557572 0.033626765 -37.374200 46.994615 6506.5623 4.4025039e+10 0.072435516 0.034262043 -37.473400 46.887148 6508.6690 4.0855209e+10 0.074233858 0.034897321 -37.572600 46.779681 6510.7757 3.7998732e+10 0.077119423 0.035532600 -37.668810 46.675206 6512.8825 3.5187614e+10 0.082335868 0.036167878 -37.763879 46.571872 6514.9892 3.2719333e+10 0.091353317 0.036803156 -37.855734 46.472031 6517.0959 3.0578080e+10 0.10512735 0.037438435 -37.940248 46.380167 6519.2026 2.8752177e+10 0.12392834 0.038073713 -38.024762 46.288304 6521.3094 2.7110731e+10 0.14437604 0.038708991 -38.113018 46.187343 6523.4161 2.5384542e+10 0.15881510 0.039282240 -38.203951 46.079877 6525.5228 2.3570044e+10 0.16723394 0.039722547 -38.294884 45.973087 6527.6295 2.1767615e+10 0.17158414 0.041173530 -38.385819 45.869752 6529.7363 2.0114428e+10 0.17409190 0.043408607 -38.476753 45.766418 6531.8430 1.8571914e+10 0.17575506 0.046455682 -38.567688 45.660007 6533.9497 1.7094679e+10 0.17582379 0.047923195 -38.658622 45.552539 6536.0565 1.5782849e+10 0.17451985 0.047841018 -38.746272 45.450146 6538.1632 1.4673048e+10 0.17506472 0.049236145 -38.827100 45.358295 6540.2699 1.3769522e+10 0.17459147 0.050981618 -38.907928 45.266444 6542.3766 1.2982292e+10 0.17267655 0.051145233 -38.994852 45.165173 6544.4834 1.2127770e+10 0.17123162 0.052036470 -39.085787 45.057707 6546.5901 1.1246045e+10 0.16970008 0.052950085 -39.175961 44.951000 6548.6968 1.0376995e+10 0.16827933 0.053875743 -39.262761 44.847666 6550.8036 9.5723346e+09 0.16709685 0.055186564 -39.349561 44.744332 6552.9103 8.8795294e+09 0.16611246 0.055357648 -39.428996 44.646958 6555.0170 8.3257156e+09 0.16452367 0.054839068 -39.506162 44.551419 6557.1237 7.8425435e+09 0.16225345 0.053788545 -39.583744 44.455367 6559.2305 7.3816882e+09 0.15936111 0.052361168 -39.670544 44.347900 6561.3372 6.9134474e+09 0.15630020 0.051206516 -39.757344 44.240433 6563.4439 6.4161395e+09 0.15324695 0.049414845 -39.841566 44.135544 6565.5507 5.9663269e+09 0.15009016 0.047693120 -39.924234 44.032210 6567.6574 5.5658574e+09 0.14742329 0.046061353 -40.005023 43.930472 6569.7641 5.2343549e+09 0.14508247 0.044902156 -40.078503 43.834947 6571.8708 4.9717564e+09 0.14302416 0.044265432 -40.151982 43.739421 6573.9776 4.7335502e+09 0.14062643 0.042873006 -40.229896 43.640126 6576.0843 4.4969997e+09 0.13855457 0.041274366 -40.312564 43.536792 6578.1910 4.2364351e+09 0.13640629 0.038347964 -40.395232 43.433196 6580.2978 3.9546068e+09 0.13426768 0.036245586 -40.477899 43.325730 6582.4045 3.6957008e+09 0.13234774 0.035183724 -40.560567 43.218263 6584.5112 3.4731058e+09 0.13037294 0.034237036 -40.637325 43.120844 6586.6179 3.3004165e+09 0.12829463 0.033163308 -40.710816 43.028981 6588.7247 3.1505101e+09 0.12629344 0.033137926 -40.784307 42.937118 6590.8314 3.0030369e+09 0.12365357 0.029515543 -40.862449 42.830859 6592.9381 2.8532541e+09 0.12126313 0.027162322 -40.940983 42.723390 6595.0449 2.7031827e+09 0.11856010 0.025628222 -41.021596 42.618003 6597.1516 2.5526561e+09 0.11566643 0.025674895 -41.104264 42.514669 6599.2583 2.4005374e+09 0.11363839 0.024945266 -41.186585 42.410988 6601.3650 2.2535561e+09 0.11308278 0.027217601 -41.265118 42.303521 6603.4718 2.1154908e+09 0.11139812 0.026383991 -41.343651 42.196054 6605.5785 1.9951355e+09 0.11029200 0.027150352 -41.413945 42.098964 6607.6852 1.8952566e+09 0.10778104 0.024353943 -41.480077 42.007114 6609.7919 1.8113512e+09 0.10406373 0.023941177 -41.546210 41.915263 6611.8987 1.7304674e+09 0.10077115 0.024385366 -41.624034 41.808691 6614.0054 1.6449534e+09 0.099065658 0.023936769 -41.702569 41.701224 6616.1121 1.5538052e+09 0.097148042 0.023299898 -41.778940 41.593756 6618.2189 1.4639470e+09 0.096486647 0.023936062 -41.853339 41.486288 6620.3256 1.3786083e+09 0.095984797 0.024872119 -41.927261 41.380443 6622.4323 1.3067679e+09 0.094925377 0.024642924 -41.997078 41.288580 6624.5390 1.2474445e+09 0.093455450 0.025150858 -42.066895 41.196716 6626.6458 1.1922120e+09 0.091909697 0.025768127 -42.138466 41.098883 6628.7525 1.1430868e+09 0.090699849 0.026008619 -42.212866 40.991417 6630.8592 1.0881456e+09 0.089165902 0.025930419 -42.287267 40.883950 6632.9660 1.0312781e+09 0.087971395 0.026148171 -42.357685 40.780464 6635.0727 9.7724076e+08 0.086604378 0.026410688 -42.427952 40.677130 6637.1794 9.1910920e+08 0.085250918 0.026073540 -42.500467 40.571547 6639.2861 8.6921001e+08 0.084458524 0.025525801 -42.574868 40.464079 6641.3929 8.2271342e+08 0.084952390 0.025149634 -42.648239 40.358556 6643.4996 7.8356765e+08 0.084164490 0.025268052 -42.714371 40.266705 6645.6063 7.4920423e+08 0.083034366 0.025735727 -42.780504 40.174854 6647.7131 7.1551859e+08 0.081848669 0.026813207 -42.848302 40.076713 6649.8198 6.8303239e+08 0.080836263 0.026503655 -42.918570 39.969247 6651.9265 6.5068681e+08 0.080115510 0.027194204 -42.988838 39.861780 6654.0332 6.1683167e+08 0.079273831 0.028022064 -43.059115 39.758362 6656.1400 5.8579691e+08 0.077328293 0.028146268 -43.129392 39.655013 6658.2467 5.5624953e+08 0.075698927 0.030498602 -43.199664 39.549339 6660.3534 5.2989765e+08 0.074095114 0.031947245 -43.269931 39.441871 6662.4602 5.0505792e+08 0.072621740 0.032786098 -43.340199 39.335002 6664.5669 4.7572817e+08 0.071735228 0.030131889 -43.410466 39.231668 6666.6736 4.4640873e+08 0.071751872 0.027039857 -43.480733 39.128333 6668.7803 4.2024946e+08 0.070881745 0.028161319 -43.542666 39.030667 6670.8871 4.0006238e+08 0.071066677 0.026917668 -43.601450 38.935143 6672.9938 3.8623249e+08 0.070838690 0.027455621 -43.660329 38.839555 6675.1005 3.7378218e+08 0.069356985 0.029990896 -43.730548 38.736254 6677.2073 3.5743077e+08 0.067487143 0.032063588 -43.800816 38.632920 6679.3140 3.4051776e+08 0.067216498 0.030008312 -43.868667 38.527169 6681.4207 3.2500337e+08 0.068243405 0.029980119 -43.934801 38.419703 6683.5274 3.1040876e+08 0.068709607 0.031961545 -44.000934 38.312919 6685.6342 2.9523788e+08 0.068393457 0.033374672 -44.067068 38.209585 6687.7409 2.7799628e+08 0.066335849 0.033929697 -44.133203 38.106250 6689.8476 2.6175459e+08 0.064321549 0.033253029 -44.199336 38.002916 6691.9543 2.4775203e+08 0.063339189 0.032776099 -44.265470 37.899582 6694.0611 2.3614628e+08 0.062431896 0.031175423 -44.331607 37.794893 6696.1678 2.2596680e+08 0.062314278 0.029745505 -44.397750 37.687408 6698.2745 2.1733617e+08 0.061388403 0.030594647 -44.463894 37.579924 6700.3813 2.0990308e+08 0.059710266 0.030950511 -44.530029 37.476207 6702.4880 2.0260042e+08 0.058602395 0.033266393 -44.596162 37.372873 6704.5947 1.9230752e+08 0.058863209 0.036469592 -44.660277 37.267521 6706.7014 1.8105975e+08 0.058639958 0.039667218 -44.722276 37.160054 6708.8082 1.7253258e+08 0.058157439 0.040923653 -44.784561 37.052873 6710.9149 1.6382091e+08 0.056665026 0.040675576 -44.850695 36.949538 6713.0216 1.5837576e+08 0.054850108 0.043764861 -44.916829 36.846204 6715.1284 1.5209997e+08 0.053046055 0.047509871 -44.980278 36.742870 6717.2351 1.4554521e+08 0.051177889 0.049859727 -45.042279 36.639536 6719.3418 1.3923780e+08 0.049385904 0.051045088 -45.104280 36.535249 6721.4485 1.3081072e+08 0.049887748 0.050439048 -45.166281 36.427781 6723.5553 1.2459933e+08 0.048513780 0.049678629 -45.228282 36.320313 6725.6620 1.1541545e+08 0.044690602 0.041162500 -45.290282 36.216198 6727.7687 1.1311348e+08 0.043847528 0.039936219 -45.352281 36.112864 6729.8755 1.0877342e+08 0.042868774 0.040461913 -45.414281 36.007911 6731.9822 1.0237726e+08 0.041333341 0.043704755 -45.476283 35.900444 6734.0889 96714373. 0.040569676 0.049348250 -45.538284 35.792977 6736.1956 89859223. 0.042429252 0.051094642 -45.600284 35.689528 6738.3024 87879911. 0.043642877 0.058985778 -45.662283 35.586194 6740.4091 89606918. 0.043192187 0.064749236 -45.726570 35.474696 6742.5158 87926980. 0.040494729 0.069867660 -45.792707 35.356598 6744.6226 81263574. 0.036683173 0.078274942 -45.857043 35.244931 6746.7293 75427906. 0.033048263 0.070508546 -45.919052 35.141582 6748.8360 67602594. 0.032086809 0.071415184 -45.980990 35.038162 6750.9427 66128586. 0.029159219 0.073613897 -46.038857 34.930694 6753.0495 64641736. 0.025671897 0.073137377 -46.096723 34.823225 6755.1562 59810136. 0.019095727 0.074536864 -46.154590 34.718228 6757.2629 57369691. 0.020933120 0.075942151 -46.212457 34.614894 6759.3697 54596193. 0.030918887 0.075909158 -46.272643 34.508924