# # 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 = 46.724410 km # Date (UTC) = 2013-01-18T09:58:58.782 # Date (julian) = 2456310.91595812 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6500.1873 6.8480123e+10 0.042265245 0.032339698 -29.478428 51.824106 6502.2115 6.3117512e+10 0.050642007 0.032950079 -29.600976 51.706098 6504.2357 5.9054902e+10 0.059548372 0.033560459 -29.721911 51.588090 6506.2598 5.5220538e+10 0.068808847 0.034170840 -29.839921 51.470079 6508.2840 5.1680968e+10 0.078476345 0.034781220 -29.957930 51.352070 6510.3081 4.8250555e+10 0.088526366 0.035391601 -30.075939 51.234062 6512.3323 4.4734959e+10 0.098863994 0.036001981 -30.193948 51.116054 6514.3565 4.0960111e+10 0.10936869 0.036612362 -30.330619 50.979381 6516.3806 3.7152417e+10 0.12006033 0.037222742 -30.466839 50.842885 6518.4048 3.3743659e+10 0.13109466 0.037833123 -30.580309 50.724877 6520.4289 3.1101913e+10 0.14268184 0.038443503 -30.693780 50.606868 6522.4531 2.8954608e+10 0.15346154 0.039035902 -30.807250 50.484969 6524.4773 2.7062633e+10 0.16031039 0.039596512 -30.920720 50.362422 6526.5014 2.5329531e+10 0.16579758 0.040193776 -31.034190 50.242842 6528.5256 2.3644545e+10 0.17087737 0.041859435 -31.147660 50.124834 6530.5498 2.2056860e+10 0.17520272 0.044598339 -31.259085 50.006825 6532.5739 2.0553878e+10 0.17902008 0.047163636 -31.368017 49.888815 6534.5981 1.9105119e+10 0.18046942 0.048111862 -31.476949 49.770805 6536.6222 1.7752724e+10 0.18015745 0.048347232 -31.585880 49.652797 6538.6464 1.6492984e+10 0.17971197 0.049471442 -31.694611 49.534589 6540.6706 1.5278259e+10 0.17848178 0.051170891 -31.799003 49.412041 6542.6947 1.4203974e+10 0.17635897 0.051265992 -31.903396 49.289493 6544.7189 1.3215172e+10 0.17455810 0.052227518 -32.011605 49.170761 6546.7430 1.2337353e+10 0.17239526 0.053075930 -32.120536 49.052751 6548.7672 1.1597809e+10 0.17024905 0.053896759 -32.226572 48.934743 6550.7914 1.0908359e+10 0.16856872 0.055183511 -32.330965 48.816735 6552.8155 1.0209526e+10 0.16717832 0.055381499 -32.442907 48.687890 6554.8397 9.4597549e+09 0.16536330 0.054850001 -32.564678 48.544942 6556.8638 8.7326669e+09 0.16324629 0.053886124 -32.674489 48.415603 6558.8880 8.0811140e+09 0.16072559 0.052482610 -32.774343 48.297595 6560.9122 7.5745824e+09 0.15806797 0.051451868 -32.869922 48.184639 6562.9363 7.1890742e+09 0.15569504 0.049988948 -32.957293 48.081383 6564.9605 6.8673084e+09 0.15316957 0.048336301 -33.044663 47.978126 6566.9847 6.5614608e+09 0.15062549 0.046625867 -33.142324 47.858965 6569.0088 6.2442860e+09 0.14803173 0.044852998 -33.242177 47.736417 6571.0330 5.9114701e+09 0.14607084 0.044494268 -33.342030 47.616690 6573.0571 5.6073768e+09 0.14376903 0.043611627 -33.441884 47.498682 6575.0813 5.3411538e+09 0.14099751 0.042293136 -33.539841 47.378776 6577.1055 5.0878381e+09 0.13776405 0.040054714 -33.635156 47.256228 6579.1296 4.8486507e+09 0.13391147 0.036999237 -33.730470 47.134655 6581.1538 4.6159278e+09 0.13063404 0.035550040 -33.825785 47.016647 6583.1779 4.3849341e+09 0.12809593 0.034931597 -33.921099 46.898581 6585.2021 4.1654130e+09 0.12578383 0.033809191 -34.016415 46.776038 6587.2263 3.9696792e+09 0.12386631 0.033208502 -34.111732 46.653490 6589.2504 3.7874926e+09 0.12194412 0.032549143 -34.207046 46.534610 6591.2746 3.6229695e+09 0.11954548 0.028892063 -34.302361 46.416601 6593.2988 3.4603699e+09 0.11746179 0.026824469 -34.394929 46.295845 6595.3229 3.2997826e+09 0.11499645 0.025657058 -34.485705 46.173297 6597.3471 3.1426427e+09 0.11266212 0.025613203 -34.576482 46.052574 6599.3712 2.9888893e+09 0.11109246 0.024952058 -34.667258 45.934565 6601.3954 2.8384298e+09 0.11077846 0.027231901 -34.758035 45.815655 6603.4196 2.6957774e+09 0.10943906 0.026414894 -34.848809 45.693107 6605.4437 2.5651630e+09 0.10867368 0.027037292 -34.939584 45.570565 6607.4679 2.4227692e+09 0.10693281 0.024783099 -35.030360 45.452531 6609.4920 2.2959963e+09 0.10387392 0.023852092 -35.121136 45.334523 6611.5162 2.1830488e+09 0.10107399 0.024629268 -35.199777 45.225055 6613.5404 2.0899999e+09 0.099791533 0.023771853 -35.275234 45.117828 6615.5645 2.0170205e+09 0.097976860 0.023268901 -35.353647 45.007644 6617.5887 1.9375775e+09 0.096640835 0.023634428 -35.439883 44.889635 6619.6129 1.8520624e+09 0.095557051 0.024673786 -35.526120 44.771303 6621.6370 1.7666121e+09 0.094109057 0.024878306 -35.612356 44.648755 6623.6612 1.6771220e+09 0.091996449 0.024736781 -35.698593 44.526207 6625.6853 1.5932241e+09 0.090557479 0.026215417 -35.784831 44.407598 6627.7095 1.5196910e+09 0.088637823 0.025590879 -35.871070 44.289590 6629.7337 1.4498589e+09 0.087526512 0.025976457 -35.954291 44.168566 6631.7578 1.3834539e+09 0.086115955 0.026007745 -36.035990 44.046018 6633.7820 1.3196883e+09 0.085026454 0.026288779 -36.119781 43.925564 6635.8061 1.2563863e+09 0.083895599 0.026520681 -36.206018 43.807556 6637.8303 1.1954035e+09 0.083124026 0.025754754 -36.291084 43.688376 6639.8545 1.1383089e+09 0.083065076 0.025322669 -36.372783 43.565828 6641.8786 1.0834780e+09 0.083422913 0.025151284 -36.453921 43.444337 6643.9028 1.0386758e+09 0.082587548 0.025328929 -36.525406 43.341081 6645.9270 1.0011325e+09 0.081719853 0.025885926 -36.596891 43.237825 6647.9511 9.6722151e+08 0.080825413 0.026938545 -36.671421 43.124213 6649.9753 9.3211648e+08 0.080101614 0.026289321 -36.748580 43.001665 6651.9994 8.9295890e+08 0.079564431 0.027250088 -36.827253 42.880631 6654.0236 8.5094090e+08 0.078951706 0.028026173 -36.908952 42.762624 6656.0478 8.1270757e+08 0.077276224 0.028065335 -36.990059 42.644024 6658.0719 7.7644658e+08 0.075947401 0.030188629 -37.067219 42.521476 6660.0961 7.4238176e+08 0.074589705 0.031713330 -37.144380 42.398928 6662.1202 7.0912649e+08 0.073163725 0.032976808 -37.221539 42.280589 6664.1444 6.7523897e+08 0.071943707 0.031677722 -37.298698 42.162580 6666.1686 6.4638372e+08 0.071953407 0.026941442 -37.375858 42.041285 6668.1927 6.1759113e+08 0.071116278 0.027641324 -37.453019 41.918738 6670.2169 5.8751749e+08 0.070684020 0.027228152 -37.525156 41.806235 6672.2410 5.6439756e+08 0.070420252 0.027019316 -37.592668 41.702979 6674.2652 5.4298882e+08 0.069594627 0.029178513 -37.660244 41.599595 6676.2894 5.2802144e+08 0.067597438 0.031900222 -37.737367 41.477125 6678.3135 5.1061029e+08 0.066950604 0.030726909 -37.814527 41.354579 6680.3377 4.8813592e+08 0.067601383 0.029514339 -37.888058 41.235659 6682.3619 4.6701324e+08 0.068434656 0.030701015 -37.960679 41.117649 6684.3860 4.4626666e+08 0.068674171 0.032673681 -38.033300 40.996934 6686.4102 4.2727630e+08 0.067887134 0.033999733 -38.105921 40.874385 6688.4343 4.0697442e+08 0.065571475 0.033885451 -38.178542 40.753621 6690.4585 3.8927470e+08 0.064302540 0.033063319 -38.251163 40.635613 6692.4827 3.7461323e+08 0.063499183 0.032204841 -38.323784 40.516743 6694.5068 3.6202055e+08 0.062821575 0.030550686 -38.396404 40.394196 6696.5310 3.4639444e+08 0.062603331 0.029896399 -38.469025 40.271648 6698.5551 3.3138945e+08 0.061648646 0.030979820 -38.541646 40.153577 6700.5793 3.1520915e+08 0.060077865 0.031097408 -38.614266 40.035567 6702.6035 3.0342523e+08 0.059247235 0.033358604 -38.679775 39.926005 6704.6276 2.9144689e+08 0.059454036 0.036485753 -38.743317 39.818780 6706.6518 2.8137617e+08 0.059157053 0.039580798 -38.808063 39.708693 6708.6760 2.7305935e+08 0.058594495 0.040779668 -38.876145 39.590683 6710.7001 2.6072971e+08 0.057061703 0.040633534 -38.944226 39.472390 6712.7243 2.5180966e+08 0.055018573 0.043174699 -39.012309 39.349843 6714.7484 2.4014325e+08 0.052952122 0.047359676 -39.080391 39.227295 6716.7726 2.2861791e+08 0.050954424 0.049539328 -39.148474 39.108646 6718.7968 2.1973649e+08 0.048615733 0.051053309 -39.216557 38.990638 6720.8209 2.0916634e+08 0.048658649 0.050324648 -39.284638 38.869654 6722.8451 2.0087310e+08 0.047717798 0.049560461 -39.352719 38.747106 6724.8692 1.9424058e+08 0.043692621 0.042667908 -39.420801 38.626611 6726.8934 1.8222768e+08 0.041557451 0.040959425 -39.488883 38.508602 6728.9176 1.7200067e+08 0.040974791 0.040928594 -39.556966 38.390592 6730.9417 1.6399287e+08 0.038960785 0.041670129 -39.625047 38.272584 6732.9659 1.5653503e+08 0.037476974 0.043918026 -39.692919 38.154368 6734.9901 1.5109297e+08 0.037169287 0.049294031 -39.756464 38.031819 6737.0142 1.4442867e+08 0.038345973 0.054180842 -39.820009 37.909271 6739.0384 1.3991950e+08 0.038630698 0.062873515 -39.887377 37.790549 6741.0625 1.3623557e+08 0.037138968 0.065937047 -39.955458 37.672541 6743.0867 1.3065126e+08 0.033242846 0.071632300 -40.020636 37.551629 6745.1109 1.2163819e+08 0.029622443 0.078613491 -40.084179 37.429082 6747.1350 1.1439282e+08 0.024446066 0.067314679 -40.147722 37.308514 6749.1592 1.0676000e+08 0.023500323 0.072234349 -40.211265 37.190504 6751.1833 1.0392175e+08 0.020282959 0.073789189 -40.274808 37.072495 6753.2075 1.0132282e+08 0.017574273 0.073648812 -40.338353 36.954487 6755.2317 97912358. 0.015372716 0.074503775 -40.401898 36.836343 6757.2558 94141498. 0.012848612 0.075963689 -40.465441 36.713795 6759.2800 86169632. 0.012810796 0.075887520 -40.528984 36.591246 6761.3042 81394050. 0.013486253 0.077993354 -40.588775 36.472451 6763.3283 79773115. 0.017862543 0.077437644 -40.647778 36.354443 6765.3525 78208448. 0.019846220 0.079595538 -40.709612 36.236434 6767.3766 73372825. 0.018035720 0.081554033 -40.773157 36.118424 6769.4008 65742132. 0.012012233 0.085426366 -40.834793 35.998508 6771.4250 61255290. 0.0072747424 0.090335848 -40.893796 35.875960 6773.4491 59124988. 0.0030075560 0.095245329 -40.956083 35.750129 6775.4733 56941605. -0.0014655720 0.10015481 -41.030220 35.612449 6777.4974 56096082. -0.0057434025 0.10506429 -41.099386 35.481232 6779.5216 53247704. -0.011142340 0.10997377 -41.158389 35.363222 6781.5458 51953481. -0.016559069 0.11488325 -41.217392 35.245212 6783.5699 51966660. -0.022292449 0.11979274 -41.276397 35.127204 6785.5941 49091548. -0.031317588 0.12470222 -41.335403 35.009195 6787.6182 49190126. -0.043150414 0.12961170 -41.394408 34.887001 6789.6424 50103107. -0.089565327 0.13452118 -41.453412 34.764453 6791.6666 51712003. -0.055973655 0.13943066 -41.512416 34.645169 6795.7149 50902669. 0.018819298 0.14924962 -41.635488 34.399022