# # 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 = 38.092323 km # Date (UTC) = 2010-11-26T10:13:58.947 # Date (julian) = 2455526.92637670 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6497.9004 2.2028680e+11 0.041030635 0.031650090 -35.279328 54.080559 6499.9938 1.7229521e+11 0.048558463 0.032281338 -35.417630 53.965309 6502.0872 1.4170532e+11 0.056004249 0.032912587 -35.540844 53.862630 6504.1805 1.1912127e+11 0.063514136 0.033543836 -35.664058 53.759952 6506.2739 1.0227948e+11 0.071266533 0.034175084 -35.799742 53.646882 6508.3673 8.8332756e+10 0.079306532 0.034806333 -35.940561 53.529532 6510.4606 7.6831746e+10 0.087776496 0.035437582 -36.068833 53.420661 6512.5540 6.7666153e+10 0.096895999 0.036068830 -36.187940 53.317983 6514.6474 6.0068642e+10 0.10670697 0.036700079 -36.309483 53.213204 6516.7407 5.3002529e+10 0.11703597 0.037331328 -36.445609 53.095855 6518.8341 4.6654384e+10 0.12791532 0.037962576 -36.581519 52.978692 6520.9274 4.1422611e+10 0.13957019 0.038593825 -36.700625 52.876013 6523.0208 3.7472983e+10 0.14934927 0.039184271 -36.819731 52.773335 6525.1142 3.4167056e+10 0.15715354 0.039769184 -36.945961 52.662177 6527.2075 3.0918527e+10 0.16346086 0.040867147 -37.077394 52.544827 6529.3009 2.7779284e+10 0.16855564 0.042715101 -37.199633 52.434044 6531.3943 2.5211605e+10 0.17342375 0.045802545 -37.310524 52.331365 6533.4876 2.3078229e+10 0.17741607 0.047726818 -37.421618 52.228439 6535.5810 2.1052493e+10 0.17842591 0.047972261 -37.548356 52.106397 6537.6744 1.9069609e+10 0.17905077 0.049003159 -37.675093 51.984354 6539.7677 1.7227460e+10 0.17836586 0.050572946 -37.787865 51.879385 6541.8611 1.5727525e+10 0.17582258 0.051047283 -37.898774 51.776691 6543.9545 1.4506038e+10 0.17338864 0.051632396 -38.009677 51.674003 6546.0478 1.3484592e+10 0.17110278 0.052503879 -38.120570 51.571325 6548.1412 1.2500040e+10 0.16978676 0.053709810 -38.231610 51.468453 6550.2346 1.1504594e+10 0.16824715 0.055044090 -38.353654 51.351104 6552.3279 1.0563508e+10 0.16648607 0.055504229 -38.475698 51.233754 6554.4213 9.7001869e+09 0.16420221 0.054841221 -38.584272 51.125730 6556.5147 9.0068284e+09 0.16182146 0.053937462 -38.691057 51.018943 6558.6080 8.3788170e+09 0.15919777 0.052721200 -38.802575 50.907424 6560.7014 7.7140653e+09 0.15626206 0.051641924 -38.919925 50.790074 6562.7947 7.0697653e+09 0.15355784 0.050123674 -39.033919 50.677385 6564.8881 6.4822669e+09 0.15080613 0.048369105 -39.140704 50.574706 6566.9815 6.0053600e+09 0.14800190 0.046627667 -39.247489 50.472027 6569.0748 5.6222631e+09 0.14494346 0.044857295 -39.347023 50.365723 6571.1682 5.2798134e+09 0.14230108 0.044457335 -39.445595 50.258938 6573.2616 4.9412785e+09 0.13916514 0.043447577 -39.552581 50.147420 6575.3549 4.5892515e+09 0.13571284 0.042018596 -39.669931 50.030070 6577.4483 4.2432072e+09 0.13190669 0.039516200 -39.781315 49.916076 6579.5417 3.9356054e+09 0.12757708 0.036772720 -39.879887 49.809289 6581.6350 3.6689756e+09 0.12374073 0.035404313 -39.978459 49.702503 6583.7284 3.4445216e+09 0.12048421 0.034652985 -40.077030 49.599343 6585.8218 3.2443936e+09 0.11782485 0.033313794 -40.175600 49.496665 6587.9151 3.0429045e+09 0.11621321 0.033361126 -40.280483 49.387412 6590.0085 2.8339643e+09 0.11416389 0.031046274 -40.393140 49.270062 6592.1019 2.6164596e+09 0.11173596 0.027974594 -40.500016 49.156069 6594.1952 2.4184646e+09 0.10943923 0.026065357 -40.594480 49.049284 6596.2886 2.2557196e+09 0.10673947 0.025725962 -40.688944 48.942500 6598.3820 2.1258171e+09 0.10473125 0.025224808 -40.783408 48.835713 6600.4753 2.0125128e+09 0.10401301 0.025967037 -40.877872 48.728926 6602.5687 1.8922809e+09 0.10299353 0.027031344 -40.978385 48.617405 6604.6620 1.7676630e+09 0.10174849 0.026464377 -41.086347 48.500056 6606.7554 1.6359023e+09 0.10068745 0.026146514 -41.188714 48.386064 6608.8488 1.5188818e+09 0.097663407 0.023709930 -41.279072 48.279279 6610.9421 1.4250869e+09 0.094469713 0.024903173 -41.369430 48.172493 6613.0355 1.3462442e+09 0.093091574 0.023586618 -41.459798 48.069321 6615.1289 1.2779173e+09 0.091425787 0.023255497 -41.550167 47.966627 6617.2222 1.2022565e+09 0.089812198 0.023512931 -41.646323 47.855254 6619.3156 1.1234933e+09 0.088806628 0.024602064 -41.749591 47.733211 6621.4090 1.0430586e+09 0.087604206 0.024953893 -41.848751 47.617330 6623.5023 9.7468046e+08 0.085628325 0.024677932 -41.939109 47.514651 6625.5957 9.1713857e+08 0.084032383 0.026108448 -42.029466 47.411972 6627.6891 8.6728664e+08 0.081844794 0.025582984 -42.116195 47.305665 6629.7824 8.2115505e+08 0.080436267 0.025967640 -42.202445 47.198878 6631.8758 7.7627027e+08 0.078791306 0.026019728 -42.294223 47.085247 6633.9692 7.3302775e+08 0.077657479 0.026321458 -42.392796 46.963205 6636.0625 6.8547615e+08 0.076683532 0.026525473 -42.487447 46.847325 6638.1559 6.4195933e+08 0.076150530 0.025664851 -42.573697 46.744646 6640.2493 6.0072748e+08 0.076582219 0.025240156 -42.659946 46.641968 6642.3426 5.6817918e+08 0.076868786 0.025165717 -42.742568 46.535660 6644.4360 5.4206520e+08 0.076138567 0.025390726 -42.824712 46.428872 6646.5293 5.1591309e+08 0.075349454 0.026194154 -42.914228 46.315240 6648.6227 4.8482128e+08 0.074562566 0.027381129 -43.012803 46.193198 6650.7161 4.5317121e+08 0.074401711 0.026419167 -43.106147 46.077319 6652.8094 4.2438966e+08 0.074299571 0.027473231 -43.188288 45.974640 6654.9028 4.0000842e+08 0.073445364 0.027651622 -43.270430 45.871962 6656.9962 3.8176780e+08 0.071724546 0.028897751 -43.352573 45.765654 6659.0895 3.6189349e+08 0.070393218 0.031815921 -43.434716 45.658867 6661.1829 3.4372596e+08 0.069264272 0.032628105 -43.520019 45.547341 6663.2763 3.1996412e+08 0.068297507 0.032406653 -43.609205 45.429991 6665.3696 2.9798881e+08 0.068081087 0.027941477 -43.696148 45.316004 6667.4630 2.7764740e+08 0.067706919 0.027273524 -43.778291 45.209219 6669.5564 2.6340292e+08 0.066860033 0.027784281 -43.860434 45.102434 6671.6497 2.5665900e+08 0.066658467 0.026874608 -43.938949 44.995649 6673.7431 2.4944778e+08 0.065884054 0.028570565 -44.016986 44.888864 6675.8365 2.3682825e+08 0.063806884 0.031400478 -44.100025 44.777338 6677.9298 2.2113665e+08 0.062785012 0.031036380 -44.189210 44.659989 6680.0232 2.0352114e+08 0.063089660 0.029446423 -44.273538 44.546003 6682.1166 1.9144845e+08 0.063834699 0.030513592 -44.347466 44.439216 6684.2099 1.8613856e+08 0.063903426 0.032664744 -44.421395 44.332430 6686.3033 1.7607870e+08 0.063000569 0.033937538 -44.508805 44.212162 6688.3966 1.6532003e+08 0.060336107 0.033876750 -44.597990 44.090119 6690.4900 1.5043981e+08 0.058698216 0.033059708 -44.675692 43.979555 6692.5834 1.4007095e+08 0.057539385 0.032087889 -44.749632 43.872753 6694.6767 1.3458796e+08 0.056535643 0.030312538 -44.823568 43.767265 6696.7701 1.2994643e+08 0.055807373 0.029995749 -44.897497 43.664586 6698.8635 1.2620029e+08 0.054291561 0.031403030 -44.971425 43.561908 6700.9568 1.2071499e+08 0.052151922 0.031377430 -45.054692 43.442111 6703.0502 1.1499091e+08 0.051453477 0.033800854 -45.139183 43.320069 6705.1436 1.0762589e+08 0.051093202 0.036923838 -45.215715 43.209524 6707.2369 1.0006283e+08 0.050173355 0.040152886 -45.289643 43.102737 6709.3303 95396962. 0.048992864 0.040922459 -45.366940 42.992583 6711.4237 93528778. 0.046872551 0.041174243 -45.451432 42.875232 6713.5170 88034499. 0.044318458 0.045556597 -45.533159 42.759873 6715.6104 83535716. 0.042003451 0.048002879 -45.602980 42.653088 6717.7038 77573529. 0.039203180 0.049830738 -45.672801 42.546304 6719.7971 74876352. 0.037182687 0.050612516 -45.750141 42.428018 6721.8905 71749604. 0.036428564 0.050572207 -45.829940 42.305974 6723.9839 68861260. 0.033116668 0.049917655 -45.903519 42.196000 6726.0772 67843882. 0.027242252 0.040952064 -45.973340 42.093321 6728.1706 63390944. 0.020498300 0.039869869 -46.045041 41.986993 6730.2639 61085346. -0.016466835 0.040740805 -46.124840 41.864950 6732.3573 55478639. 0.010386008 0.043805989 -46.203820 41.743794 6734.4507 53225765. 0.082261468 0.049326484 -46.269534 41.637009