# # 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 = 46.937025 km # Date (UTC) = 2013-12-09T09:12:43.317 # Date (julian) = 2456635.88383469 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6509.6565 4.7905854e+10 0.084947820 0.035195104 -19.047578 51.156361 6511.5624 4.5269380e+10 0.093768272 0.035769808 -19.140649 51.078395 6513.4682 4.2719464e+10 0.10280971 0.036344512 -19.233725 51.001939 6515.3741 4.0224790e+10 0.11207545 0.036919216 -19.326802 50.925484 6517.2799 3.7836943e+10 0.12157587 0.037493919 -19.424103 50.841909 6519.1858 3.5319590e+10 0.13115867 0.038068623 -19.525062 50.752168 6521.0916 3.2724543e+10 0.14082583 0.038643327 -19.626021 50.662427 6522.9975 3.0328039e+10 0.14794859 0.039178446 -19.717315 50.578414 6524.9033 2.8239357e+10 0.15333690 0.039747864 -19.807055 50.495321 6526.8092 2.6454506e+10 0.15696331 0.040516390 -19.896795 50.412228 6528.7150 2.4910467e+10 0.15990717 0.042009697 -19.986536 50.331969 6530.6209 2.3464674e+10 0.16302608 0.044697880 -20.076276 50.252199 6532.5267 2.2125491e+10 0.16624602 0.047124196 -20.166017 50.172429 6534.4326 2.0927150e+10 0.16752820 0.048065559 -20.252961 50.092651 6536.3384 1.9827888e+10 0.16762998 0.048093278 -20.339389 50.012871 6538.2443 1.8750610e+10 0.16901225 0.049275618 -20.425817 49.933090 6540.1501 1.7573804e+10 0.16981061 0.050925013 -20.521267 49.844984 6542.0560 1.6315448e+10 0.16874722 0.051023480 -20.618487 49.755243 6543.9618 1.5094581e+10 0.16757007 0.051634322 -20.713962 49.667112 6545.8676 1.4049510e+10 0.16634719 0.052463340 -20.800378 49.587343 6547.7735 1.3194924e+10 0.16567055 0.053581512 -20.886794 49.507573 6549.6793 1.2458687e+10 0.16437395 0.054658590 -20.972702 49.427804 6551.5852 1.1716827e+10 0.16292578 0.055441164 -21.055795 49.348035 6553.4910 1.0995559e+10 0.16148958 0.055088224 -21.138888 49.268267 6555.3969 1.0320213e+10 0.16015792 0.054519877 -21.221981 49.188498 6557.3027 9.7310150e+09 0.15873082 0.053676345 -21.305074 49.108728 6559.2086 9.2539120e+09 0.15665989 0.052363637 -21.388167 49.028959 6561.1144 8.8128231e+09 0.15450762 0.051316285 -21.472669 48.947329 6563.0203 8.3343648e+09 0.15296796 0.049904891 -21.566164 48.853834 6564.9261 7.7941928e+09 0.15145328 0.048351869 -21.659660 48.760338 6566.8320 7.2472136e+09 0.14994864 0.046712228 -21.748353 48.673179 6568.7378 6.7556495e+09 0.14865456 0.045093409 -21.831446 48.593411 6570.6437 6.3417838e+09 0.14784517 0.044650870 -21.914539 48.513643 6572.5495 5.9882611e+09 0.14670305 0.043915447 -21.996127 48.433874 6574.4554 5.6874674e+09 0.14490922 0.042636282 -22.075897 48.354104 6576.3612 5.4411526e+09 0.14295917 0.040955598 -22.155666 48.274334 6578.2671 5.2195529e+09 0.14075586 0.038227848 -22.239866 48.190135 6580.1729 4.9691925e+09 0.13862680 0.036360932 -22.329608 48.100394 6582.0788 4.6779459e+09 0.13654418 0.035272354 -22.419349 48.010653 6583.9846 4.3838533e+09 0.13428317 0.034523286 -22.501413 47.926030 6585.8905 4.1159948e+09 0.13231422 0.033258848 -22.581182 47.842937 6587.7963 3.8976366e+09 0.13089012 0.033334807 -22.660952 47.759844 6589.7022 3.7181874e+09 0.12910063 0.031652901 -22.738198 47.679273 6591.6080 3.5659587e+09 0.12703941 0.028515811 -22.814654 47.599492 6593.5139 3.4355579e+09 0.12521107 0.026624462 -22.891109 47.519712 6595.4197 3.2967068e+09 0.12311334 0.025667099 -22.974753 47.432431 6597.3256 3.1296385e+09 0.12128141 0.025619985 -23.060755 47.342689 6599.2314 2.9572488e+09 0.12004438 0.024943650 -23.146006 47.253469 6601.1373 2.7914960e+09 0.12021105 0.027110343 -23.222452 47.170376 6603.0431 2.6516150e+09 0.11942022 0.026637738 -23.298898 47.087283 6604.9490 2.5332971e+09 0.11872879 0.026634751 -23.375112 47.004423 6606.8548 2.4204952e+09 0.11766502 0.025967856 -23.448234 46.924654 6608.7607 2.3226830e+09 0.11491631 0.023712259 -23.521355 46.844885 6610.6665 2.2289847e+09 0.11215047 0.024639835 -23.595265 46.764506 6612.5724 2.1322341e+09 0.11065752 0.023893090 -23.681268 46.674764 6614.4782 2.0272918e+09 0.10951315 0.023611010 -23.767270 46.585022 6616.3841 1.9223090e+09 0.10800541 0.023342580 -23.848293 46.497847 6618.2899 1.8265338e+09 0.10727014 0.023989727 -23.921425 46.414744 6620.1958 1.7500201e+09 0.10631734 0.024830287 -23.994557 46.331640 6622.1016 1.6812598e+09 0.10476930 0.024730942 -24.066426 46.249799 6624.0075 1.6211455e+09 0.10251152 0.024866313 -24.136224 46.170030 6625.9133 1.5703031e+09 0.10100709 0.026487478 -24.206022 46.090262 6627.8192 1.5119941e+09 0.098886497 0.025633246 -24.280431 46.005420 6629.7250 1.4462226e+09 0.097470715 0.025978018 -24.362694 45.911940 6631.6309 1.3700895e+09 0.095904619 0.025994850 -24.444957 45.818459 6633.5367 1.2972178e+09 0.094877835 0.026245960 -24.518549 45.734515 6635.4426 1.2392145e+09 0.093730368 0.026466158 -24.588348 45.654745 6637.3484 1.1943705e+09 0.092574561 0.025990764 -24.658146 45.574976 6639.2543 1.1494787e+09 0.091799588 0.025537192 -24.733938 45.488356 6641.1601 1.0979027e+09 0.092366239 0.025148844 -24.812462 45.398615 6643.0660 1.0405389e+09 0.092030804 0.025202580 -24.890876 45.308957 6644.9718 9.8545189e+08 0.091205918 0.025448639 -24.960684 45.225853 6646.8777 9.4343025e+08 0.090054261 0.026374459 -25.030492 45.142749 6648.7835 9.0667563e+08 0.088884160 0.027488776 -25.100299 45.059676 6650.6894 8.7513376e+08 0.088364953 0.026413054 -25.170097 44.979890 6652.5952 8.4380173e+08 0.087795286 0.027414290 -25.239895 44.900121 6654.5011 8.1600734e+08 0.086678944 0.027822765 -25.309718 44.820281 6656.4069 7.8672364e+08 0.084780438 0.028380569 -25.384455 44.726930 6658.3128 7.5370634e+08 0.083307112 0.030615781 -25.459240 44.633449 6660.2186 7.1770960e+08 0.081933872 0.031824711 -25.531355 44.544374 6662.1245 6.8521376e+08 0.080429279 0.032974437 -25.597830 44.464605 6664.0303 6.6257777e+08 0.078898219 0.032095158 -25.664304 44.384836 6665.9362 6.3850189e+08 0.078759603 0.027013188 -25.733376 44.300781 6667.8420 6.1556610e+08 0.077838390 0.027412745 -25.808161 44.207300 6669.7479 5.8900978e+08 0.076929611 0.027587592 -25.882946 44.113819 6671.6537 5.6273867e+08 0.076668667 0.026874664 -25.957738 44.022716 6673.5596 5.3642145e+08 0.076130677 0.028296088 -26.032534 43.932960 6675.4654 5.0860870e+08 0.074563166 0.030689796 -26.107331 43.843204 6677.3713 4.8763443e+08 0.073126966 0.031830428 -26.170896 43.759874 6679.2771 4.6964960e+08 0.072801752 0.030038777 -26.234046 43.676781 6681.1830 4.5435458e+08 0.073733358 0.029797725 -26.297197 43.593688 6683.0888 4.3700588e+08 0.074302461 0.031318737 -26.367892 43.504241 6684.9947 4.1696222e+08 0.074235316 0.032704567 -26.438938 43.414498 6686.9005 3.9938192e+08 0.072815851 0.034285016 -26.507763 43.326626 6688.8064 3.8503151e+08 0.070345019 0.033971326 -26.570914 43.243533 6690.7122 3.7259429e+08 0.069394847 0.033034244 -26.634065 43.160440 6692.6181 3.5878830e+08 0.068619628 0.032047613 -26.699368 43.075534 6694.5239 3.4240108e+08 0.067980503 0.030526740 -26.770414 42.985794 6696.4298 3.2820121e+08 0.067755672 0.029854342 -26.841459 42.896053 6698.3356 3.1409577e+08 0.066933367 0.030678478 -26.912505 42.806311 6700.2415 2.9941166e+08 0.065546865 0.030846814 -26.983550 42.716569 6702.1473 2.8499016e+08 0.064278597 0.032994355 -27.054595 42.626826 6704.0532 2.7023326e+08 0.064669471 0.036203656 -27.115282 42.543217 6705.9590 2.6144836e+08 0.064673451 0.038373525 -27.175117 42.460113 6707.8649 2.5449907e+08 0.064326454 0.040062937 -27.234952 42.377010 6709.7707 2.4764294e+08 0.063315414 0.040642337 -27.305052 42.287828 6711.6766 2.3932900e+08 0.061455649 0.041461966 -27.376099 42.198087 6713.5824 2.3162329e+08 0.059596002 0.045793054 -27.446242 42.107443 6715.4883 2.2170410e+08 0.058060179 0.047877960 -27.513549 42.013962 6717.3941 2.1334120e+08 0.056286302 0.049849891 -27.580855 41.920481 6719.3000 2.0337839e+08 0.054594588 0.051084862 -27.648161 41.829120 6721.2058 1.9449038e+08 0.055061363 0.050365908 -27.715468 41.739377 6723.1117 1.8719363e+08 0.054037978 0.049431214 -27.782774 41.649635 6725.0175 1.7735302e+08 0.050095989 0.041565088 -27.840437 41.565828 6726.9234 1.7331326e+08 0.048485828 0.040959695 -27.896939 41.482736 6728.8292 1.6773321e+08 0.048144146 0.040803348 -27.953442 41.399643 6730.7350 1.6463158e+08 0.046396524 0.041386745 -28.019495 41.310673 6732.6409 1.5902356e+08 0.045028427 0.043858196 -28.086801 41.220932 6734.5467 1.5156010e+08 0.044470619 0.049320703 -28.153324 41.130406 6736.4526 1.4553601e+08 0.045778164 0.052066079 -28.216891 41.036925 6738.3584 1.3865247e+08 0.046457938 0.059294509 -28.280458 40.943444 6740.2643 1.3288795e+08 0.045727385 0.064501868 -28.344031 40.851957 6742.1701 1.2881341e+08 0.043184647 0.069025344 -28.407607 40.762202 6744.0760 1.2382266e+08 0.038561061 0.077852193 -28.471184 40.672446 6745.9818 1.2029910e+08 0.037309673 0.078979646 -28.534752 40.579481 6747.8877 1.1505226e+08 0.032779011 0.067055562 -28.598319 40.486001 6749.7935 1.0913041e+08 0.030251715 0.072060660 -28.661886 40.393219 6751.6994 1.0760004e+08 0.027341019 0.074007379 -28.725453 40.303476 6753.6052 1.0000192e+08 0.025389027 0.074935967 -28.789020 40.213734 6755.5111 98136210. 0.023046851 0.074381264 -28.852588 40.123992 6757.4169 94225804. 0.020955169 0.075474748 -28.916155 40.034251 6759.3228 89884536. 0.021303564 0.075897849 -28.979722 39.944509 6761.2286 90815475. 0.022061855 0.077987115 -29.043290 39.851633 6763.1345 83938981. 0.025869104 0.076847358 -29.106857 39.758152 6765.0403 81932911. 0.027432189 0.079538557 -29.169811 39.665284 6766.9462 79265374. 0.026521693 0.081854046 -29.229638 39.575542 6768.8520 73287994. 0.020710054 0.083921863 -29.289466 39.485799 6770.7579 70871834. 0.015049534 0.088717914 -29.349294 39.394227 6772.6637 66063428. 0.0061170945 0.093340437 -29.409122 39.300746 6774.5696 62008826. -0.028680150 0.097962960 -29.468949 39.207265 6776.4754 57490475. -0.0075252026 0.10258548 -29.535746 39.106379 6778.3813 52519284. 0.050858814 0.10720801 -29.604122 39.003816