# # 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 = 47.760809 km # Date (UTC) = 2014-01-25T08:46:47.460 # Date (julian) = 2456682.86582708 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6501.0675 7.4895984e+10 0.047414648 0.032605103 -6.4940785 57.703257 6502.9235 7.0167401e+10 0.055104692 0.033164769 -6.6637889 57.577131 6504.7794 6.5870033e+10 0.063156825 0.033724434 -6.8240188 57.455745 6506.6354 6.1063245e+10 0.071408352 0.034284100 -6.9842487 57.334359 6508.4914 5.5856696e+10 0.079762625 0.034843765 -7.1753369 57.183978 6510.3474 5.0716715e+10 0.088274489 0.035403431 -7.3596528 57.039960 6512.2033 4.6013488e+10 0.097032791 0.035963097 -7.5198821 56.918574 6514.0593 4.2358416e+10 0.10628830 0.036522762 -7.6791990 56.796276 6515.9153 3.9428731e+10 0.11603107 0.037082428 -7.8345733 56.670035 6517.7713 3.6778823e+10 0.12612105 0.037642093 -7.9899476 56.543794 6519.6273 3.4388523e+10 0.13654721 0.038201759 -8.1453215 56.417551 6521.4832 3.2147299e+10 0.14723830 0.038761425 -8.3003612 56.291309 6523.3392 2.9947166e+10 0.15430217 0.039263188 -8.4508799 56.165069 6525.1952 2.7861104e+10 0.16044881 0.039759937 -8.6013985 56.038879 6527.0512 2.5951069e+10 0.16544668 0.040753628 -8.7519167 55.917488 6528.9072 2.4293879e+10 0.16872874 0.042162135 -8.9024348 55.796102 6530.7631 2.2936873e+10 0.17238956 0.044897079 -9.0483149 55.670127 6532.6191 2.1501895e+10 0.17611960 0.047201401 -9.1939495 55.543909 6534.4751 1.9784131e+10 0.17711612 0.048077461 -9.3655375 55.395201 6536.3311 1.7998177e+10 0.17621603 0.048086725 -9.5344397 55.248089 6538.1871 1.6311417e+10 0.17623639 0.049247768 -9.6752473 55.121847 6540.0430 1.4990779e+10 0.17565487 0.050874433 -9.8160549 54.995605 6541.8990 1.3861012e+10 0.17324992 0.051034986 -9.9568630 54.869364 6543.7550 1.2833955e+10 0.17131303 0.051580045 -10.096575 54.743879 6545.6110 1.1983071e+10 0.16979852 0.052461041 -10.217264 54.631513 6547.4670 1.1303125e+10 0.16873522 0.053464938 -10.337953 54.519147 6549.3229 1.0766719e+10 0.16706002 0.054295374 -10.468587 54.397741 6551.1789 1.0269821e+10 0.16563008 0.055298552 -10.604539 54.271500 6553.0349 9.7803784e+09 0.16464152 0.055317528 -10.737601 54.145274 6554.8909 9.2946137e+09 0.16320624 0.054851075 -10.868672 54.019056 6556.7468 8.8068986e+09 0.16127670 0.053903325 -10.999757 53.892826 6558.6028 8.3041451e+09 0.15924245 0.052725621 -11.130854 53.766586 6560.4588 7.8178485e+09 0.15721914 0.051860635 -11.261950 53.638050 6562.3148 7.3472037e+09 0.15514076 0.050580372 -11.393047 53.506953 6564.1708 6.9078424e+09 0.15260519 0.048694206 -11.524144 53.377861 6566.0267 6.4939939e+09 0.15057564 0.047167754 -11.655241 53.251618 6567.8827 6.1135942e+09 0.14927089 0.045870822 -11.784622 53.125377 6569.7387 5.7647396e+09 0.14766132 0.044900503 -11.910863 52.999136 6571.5947 5.4430288e+09 0.14581598 0.044340856 -12.035677 52.871468 6573.4507 5.1353728e+09 0.14356199 0.043295836 -12.157063 52.740371 6575.3066 4.8537840e+09 0.14145059 0.042067050 -12.275360 52.614640 6577.1626 4.6339092e+09 0.13913577 0.039964935 -12.383564 52.506437 6579.0186 4.4491641e+09 0.13648891 0.037060273 -12.491768 52.398233 6580.8746 4.2827603e+09 0.13465906 0.035712516 -12.610913 52.271016 6582.7306 4.0971534e+09 0.13327804 0.035094989 -12.732274 52.139945 6584.5865 3.8801124e+09 0.13167824 0.034196002 -12.849908 52.012599 6586.4425 3.6628324e+09 0.13009893 0.033165576 -12.966439 51.886357 6588.2985 3.4798533e+09 0.12885159 0.033280247 -13.074077 51.769996 6590.1545 3.3432900e+09 0.12701354 0.030774720 -13.178120 51.657631 6592.0105 3.2354341e+09 0.12470150 0.028063373 -13.286023 51.540977 6593.8664 3.1246214e+09 0.12246214 0.026296701 -13.402553 51.414735 6595.7224 2.9943850e+09 0.12002151 0.025698487 -13.517871 51.287281 6597.5784 2.8512374e+09 0.11811548 0.025540209 -13.629547 51.156184 6599.4344 2.7080447e+09 0.11677775 0.024955855 -13.741222 51.026010 6601.2904 2.5625494e+09 0.11650056 0.027182428 -13.852897 50.899769 6603.1463 2.4260886e+09 0.11539549 0.026576647 -13.962490 50.775338 6605.0023 2.3167492e+09 0.11451303 0.026666980 -14.058209 50.662973 6606.8583 2.2302777e+09 0.11304253 0.025961648 -14.153928 50.550607 6608.7143 2.1468549e+09 0.11006901 0.023713486 -14.261241 50.424631 6610.5702 2.0489364e+09 0.10718946 0.024547836 -14.372893 50.293560 6612.4262 1.9534864e+09 0.10536102 0.024002292 -14.471129 50.177757 6614.2822 1.8718397e+09 0.10392841 0.023746065 -14.562686 50.069554 6616.1382 1.8086407e+09 0.10205786 0.023303987 -14.658285 49.955289 6617.9942 1.7490295e+09 0.10129233 0.023768861 -14.765104 49.824192 6619.8501 1.6788750e+09 0.10066186 0.024731039 -14.871924 49.693095 6621.7061 1.5996735e+09 0.099861491 0.024855400 -14.978744 49.561997 6623.5621 1.5161827e+09 0.098607386 0.024700075 -15.083339 49.434236 6625.4181 1.4497600e+09 0.097770176 0.025896499 -15.174897 49.326031 6627.2741 1.3903637e+09 0.096079759 0.025422675 -15.266454 49.217826 6629.1300 1.3345830e+09 0.095203739 0.026085594 -15.365741 49.092617 6630.9860 1.2726534e+09 0.093824710 0.025930732 -15.467705 48.961520 6632.8420 1.2089691e+09 0.092867464 0.026133307 -15.559715 48.843223 6634.6980 1.1584984e+09 0.091611913 0.026377756 -15.647110 48.730859 6636.5540 1.1167103e+09 0.090217133 0.026334629 -15.737229 48.613242 6638.4099 1.0770462e+09 0.089255420 0.025653783 -15.834338 48.482145 6640.2659 1.0296559e+09 0.089398459 0.025238117 -15.929301 48.356104 6642.1219 9.8207480e+08 0.089357333 0.025156684 -16.016698 48.247898 6643.9779 9.3679513e+08 0.088320740 0.025340265 -16.104094 48.139693 6645.8339 8.9793026e+08 0.087377121 0.025842313 -16.199435 48.012763 6647.6898 8.5581397e+08 0.086399645 0.026800979 -16.296543 47.881666 6649.5458 8.1544715e+08 0.085411820 0.026881316 -16.383128 47.764777 6651.4018 7.7980035e+08 0.084826570 0.026792078 -16.466362 47.652413 6653.2578 7.4996284e+08 0.084218830 0.027657269 -16.552796 47.533397 6655.1137 7.1910369e+08 0.082870765 0.027657217 -16.645030 47.402326 6656.9697 6.8141246e+08 0.081032326 0.028874540 -16.734604 47.276785 6658.8257 6.5212470e+08 0.079558168 0.031525484 -16.817838 47.164419 6660.6817 6.2507032e+08 0.078413661 0.032245616 -16.901072 47.052054 6662.5377 6.0384721e+08 0.077314499 0.032742610 -16.992358 46.922965 6664.3936 5.7381427e+08 0.076529514 0.030765765 -17.084613 46.791867 6666.2496 5.4535346e+08 0.076655116 0.026957237 -17.165883 46.679844 6668.1056 5.2480600e+08 0.076036166 0.027564225 -17.244956 46.571640 6669.9616 5.0270502e+08 0.075638678 0.027368092 -17.327610 46.453585 6671.8176 4.8096687e+08 0.075493499 0.026876999 -17.415007 46.322490 6673.6735 4.5594896e+08 0.075020168 0.028466545 -17.499318 46.198339 6675.5295 4.3915219e+08 0.073313766 0.030812579 -17.578390 46.085973 6677.3855 4.2242066e+08 0.071883448 0.031810193 -17.657462 45.973608 6679.2415 4.0870560e+08 0.071449474 0.030068226 -17.744593 45.843112 6681.0975 3.8917988e+08 0.072405444 0.029732125 -17.831991 45.712015 6682.9534 3.7202485e+08 0.072969675 0.031153004 -17.908045 45.597933 6684.8094 3.6180543e+08 0.072759661 0.032695166 -17.982956 45.485567 6686.6654 3.4503941e+08 0.071565283 0.034148221 -18.064179 45.363733 6688.5214 3.3051447e+08 0.069248511 0.033905541 -18.151577 45.232635 6690.3774 3.1633359e+08 0.068023352 0.033072619 -18.231551 45.111747 6692.2333 3.0330812e+08 0.067132641 0.032494375 -18.302300 45.003544 6694.0893 2.9967500e+08 0.066120826 0.031135854 -18.373764 44.894356 6695.9453 2.9332681e+08 0.065934866 0.029685835 -18.461144 44.763285 6697.8013 2.8383335e+08 0.065175980 0.030192667 -18.548524 44.632214 6699.6572 2.7688174e+08 0.063761823 0.030983980 -18.619553 44.519533 6701.5132 2.6726954e+08 0.062196362 0.032162496 -18.690302 44.407167 6703.3692 2.5781114e+08 0.062321644 0.034599107 -18.767894 44.283933 6705.2252 2.4417139e+08 0.062599044 0.037068941 -18.850436 44.152836 6707.0812 2.3344445e+08 0.062354913 0.040175199 -18.924671 44.031492 6708.9371 2.2404501e+08 0.061928477 0.041064095 -18.991258 43.919126 6710.7931 2.1992787e+08 0.060500308 0.040651739 -19.059725 43.804552 6712.6491 2.1461803e+08 0.058734892 0.043035125 -19.142268 43.673456 6714.5051 2.0479347e+08 0.056958313 0.047341380 -19.223880 43.543450 6716.3611 1.9879863e+08 0.055347662 0.048933169 -19.290467 43.431085 6718.2170 1.8823649e+08 0.053536263 0.050150437 -19.357054 43.318719 6720.0730 1.8172495e+08 0.052705452 0.050411306 -19.434098 43.197260 6721.9290 1.7605524e+08 0.052706720 0.050583811 -19.516640 43.071019 6723.7850 1.6864894e+08 0.050954164 0.049806739 -19.589676 42.953047 6725.6410 1.6381606e+08 0.047146561 0.041175645 -19.656262 42.840681 6727.4969 1.5851856e+08 0.046040471 0.040298325 -19.724054 42.724701 6729.3529 1.4996980e+08 0.045360000 0.040810200 -19.796887 42.593604 6731.2089 1.4576572e+08 0.043671895 0.042165763 -19.868886 42.465006 6733.0649 1.4156373e+08 0.042555347 0.044276524 -19.935473 42.352640 6734.9209 1.3748857e+08 0.042437697 0.049298194 -20.002060 42.240273 6736.7768 1.3618163e+08 0.043744400 0.053291865 -20.076745 42.114242 6738.6328 1.2835864e+08 0.044341690 0.060805008 -20.154417 41.983171 6740.4888 1.2052966e+08 0.043535049 0.064885376 -20.221864 41.864644 6742.3448 1.1561594e+08 0.041003712 0.069450847 -20.284289 41.752279 6744.2007 1.1210514e+08 0.036895907 0.077948686 -20.349500 41.636198 6746.0567 1.0612927e+08 0.035733087 0.078327751 -20.422331 41.509958 6747.9127 1.0380381e+08 0.031768437 0.067046951 -20.492996 41.386606 6749.7687 1.0380677e+08 0.029669419 0.072067466 -20.555421 41.274241 6751.6247 1.0128982e+08 0.027179832 0.073975783 -20.617846 41.161875 6753.4806 98711598. 0.025552087 0.074532744 -20.688652 41.034425 6755.3366 91471215. 0.023534485 0.074457757 -20.761484 40.903328 6757.1926 86925955. 0.021317091 0.076155557 -20.826556 40.786200 6759.0486 86411766. 0.022150923 0.075831678 -20.888981 40.673833 6760.9046 81844092. 0.022180767 0.077786228 -20.953310 40.555045 6762.7605 77365733. 0.026686529 0.076824031 -21.021286 40.423950 6764.6165 74082932. 0.028675137 0.079512821 -21.090637 40.294230 6766.4725 74165192. 0.029159217 0.080782549 -21.163469 40.167987 6768.3285 72415217. 0.025486591 0.082037968 -21.233040 40.044851 6770.1845 68186345. 0.020823513 0.087327091 -21.291304 39.932485 6772.0404 62870578. 0.016019049 0.091828657 -21.349568 39.820120 6773.8964 60668578. 0.010632027 0.096330223 -21.415805 39.692377 6775.7524 58580189. 0.0025856826 0.10083179 -21.483780 39.561280 6777.6084 55910201. -0.028919557 0.10533335 -21.544361 39.444445 6779.4644 53012025. -0.0095945172 0.10983492 -21.602624 39.332079 6781.3203 50189632. 0.040226347 0.11433648 -21.664365 39.214748