# # 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 = 53.749531 km # Date (UTC) = 2014-11-29T09:47:35.085 # Date (julian) = 2456990.90804496 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6500.4825 9.0923882e+10 0.050151400 0.032428692 -23.319488 56.882826 6502.7089 7.9650171e+10 0.057790114 0.033100076 -23.459270 56.793521 6504.9354 7.1497774e+10 0.065598584 0.033771459 -23.599902 56.703492 6507.1618 6.4662818e+10 0.073654872 0.034442843 -23.752792 56.603022 6509.3883 5.8573766e+10 0.082026029 0.035114226 -23.905682 56.502552 6511.6148 5.2937325e+10 0.090743856 0.035785610 -24.055184 56.402081 6513.8412 4.7993311e+10 0.099932988 0.036456993 -24.203705 56.301611 6516.0677 4.3763019e+10 0.10969983 0.037128377 -24.352238 56.201134 6518.2941 3.9899877e+10 0.12001665 0.037799760 -24.500782 56.100649 6520.5206 3.6495783e+10 0.13097609 0.038471144 -24.649321 56.000166 6522.7471 3.3188207e+10 0.14034792 0.039112880 -24.797841 55.899696 6524.9735 3.0136028e+10 0.14674373 0.039772811 -24.946362 55.799226 6527.2000 2.7692439e+10 0.15160217 0.040861666 -25.076369 55.708895 6529.4265 2.5719447e+10 0.15600736 0.042915085 -25.204504 55.619590 6531.6529 2.4056069e+10 0.16063146 0.046179002 -25.337968 55.525116 6533.8794 2.2430658e+10 0.16398123 0.047893295 -25.482121 55.420276 6536.1058 2.0731259e+10 0.16544582 0.047885196 -25.626084 55.315627 6538.3323 1.9041638e+10 0.16833241 0.049318492 -25.765869 55.215157 6540.5588 1.7471165e+10 0.16931526 0.051118074 -25.905654 55.114687 6542.7852 1.5986375e+10 0.16845311 0.051300351 -26.045439 55.014216 6545.0117 1.4639970e+10 0.16740717 0.052455671 -26.185223 54.913746 6547.2381 1.3447971e+10 0.16527999 0.053377926 -26.315986 54.816657 6549.4646 1.2480751e+10 0.16342823 0.054439748 -26.436369 54.723455 6551.6911 1.1682454e+10 0.16208630 0.055478326 -26.556753 54.630254 6553.9175 1.0942384e+10 0.16016913 0.054873839 -26.690516 54.530584 6556.1440 1.0189314e+10 0.15844225 0.053991957 -26.825933 54.430113 6558.3704 9.4369306e+09 0.15696139 0.052923636 -26.961349 54.327019 6560.5969 8.7365291e+09 0.15483928 0.051736118 -27.096766 54.222182 6562.8234 8.1167351e+09 0.15295748 0.050096435 -27.230822 54.117344 6565.0498 7.5374981e+09 0.15131549 0.048261811 -27.361871 54.012504 6567.2763 7.0090364e+09 0.14985008 0.046383574 -27.492508 53.908011 6569.5028 6.5827112e+09 0.14862904 0.044885146 -27.605111 53.818705 6571.7292 6.2222355e+09 0.14754467 0.044304112 -27.717714 53.729400 6573.9557 5.9047054e+09 0.14554371 0.042890573 -27.838559 53.633154 6576.1821 5.5751988e+09 0.14375176 0.041161748 -27.969607 53.528314 6578.4086 5.2269653e+09 0.14159024 0.038004387 -28.099278 53.423475 6580.6351 4.8960778e+09 0.13930776 0.035933864 -28.221590 53.318637 6582.8615 4.5830775e+09 0.13736824 0.035059350 -28.343902 53.213800 6585.0880 4.2779518e+09 0.13521193 0.033900432 -28.470007 53.108960 6587.3144 3.9916144e+09 0.13289390 0.033228038 -28.596687 53.004121 6589.5409 3.7359831e+09 0.13055154 0.031972867 -28.712973 52.906022 6591.7674 3.5338513e+09 0.12790746 0.028336025 -28.821708 52.812823 6593.9938 3.3711500e+09 0.12560679 0.026178261 -28.930553 52.719528 6596.2203 3.2230361e+09 0.12322675 0.025726272 -29.052808 52.614736 6598.4468 3.0827212e+09 0.12163411 0.025193870 -29.175119 52.509897 6600.6732 2.9254953e+09 0.12158666 0.026373877 -29.294308 52.405059 6602.8997 2.7720254e+09 0.12101400 0.026748887 -29.412252 52.300221 6605.1261 2.6132779e+09 0.12054269 0.026770861 -29.530196 52.197241 6607.3526 2.4580525e+09 0.11937139 0.025010748 -29.648140 52.096769 6609.5791 2.3220619e+09 0.11657951 0.023877939 -29.764296 51.997291 6611.8055 2.2112518e+09 0.11411375 0.024444772 -29.869133 51.904103 6614.0320 2.1224718e+09 0.11306438 0.023918459 -29.973970 51.810916 6616.2584 2.0423555e+09 0.11140676 0.023322861 -30.083709 51.708742 6618.4849 1.9599526e+09 0.11058927 0.024136956 -30.197284 51.599535 6620.7114 1.8682407e+09 0.10965148 0.024996434 -30.310864 51.491511 6622.9378 1.7771467e+09 0.10801775 0.024508375 -30.424457 51.386656 6625.1643 1.6857916e+09 0.10634783 0.025593649 -30.538049 51.281801 6627.3907 1.6007976e+09 0.10406289 0.025467751 -30.647331 51.176963 6629.6172 1.5220439e+09 0.10251657 0.025997511 -30.756538 51.072125 6631.8437 1.4480520e+09 0.10033531 0.026016466 -30.868774 50.967286 6634.0701 1.3719256e+09 0.098418704 0.026331958 -30.982348 50.862447 6636.2966 1.3034238e+09 0.096419597 0.026434573 -31.089250 50.762319 6638.5231 1.2444134e+09 0.094794004 0.025648854 -31.186321 50.669131 6640.7495 1.1982052e+09 0.094671217 0.025178947 -31.283393 50.575943 6642.9760 1.1574859e+09 0.094086307 0.025191635 -31.386903 50.473097 6645.2024 1.1090259e+09 0.093043258 0.025546520 -31.491743 50.368258 6647.4289 1.0612886e+09 0.091966468 0.026663598 -31.596581 50.263420 6649.6554 1.0137422e+09 0.091094626 0.026730304 -31.701420 50.158582 6651.8818 9.7038141e+08 0.090614619 0.027159955 -31.806258 50.052650 6654.1083 9.2948881e+08 0.089879161 0.027990095 -31.911097 49.943443 6656.3347 8.8715330e+08 0.088024204 0.028317222 -32.015935 49.834237 6658.5612 8.4586153e+08 0.086441678 0.031056391 -32.120773 49.729228 6660.7877 8.0699522e+08 0.084966201 0.032341950 -32.225610 49.624389 6663.0141 7.7329729e+08 0.083618632 0.032479297 -32.330460 49.519538 6665.2406 7.4365540e+08 0.082842885 0.028152914 -32.435316 49.414683 6667.4671 7.1575446e+08 0.082104595 0.027275014 -32.538491 49.309834 6669.6935 6.8542036e+08 0.081081183 0.027643416 -32.638961 49.204997 6671.9200 6.5362034e+08 0.080747918 0.026878459 -32.739431 49.099749 6674.1464 6.2195514e+08 0.079696347 0.029078319 -32.839901 48.990542 6676.3729 5.9382370e+08 0.077181456 0.031954054 -32.940371 48.881335 6678.5994 5.6746671e+08 0.076054440 0.030535737 -33.028734 48.785017 6680.8258 5.4643910e+08 0.076532329 0.029619745 -33.114157 48.691828 6683.0523 5.2769919e+08 0.076852995 0.031265200 -33.202028 48.595969 6685.2787 5.0941982e+08 0.076239193 0.032999258 -33.298131 48.491131 6687.5052 4.8865097e+08 0.073928414 0.034061143 -33.394234 48.386293 6689.7317 4.6759413e+08 0.071435294 0.033357408 -33.490335 48.277348 6691.9581 4.4661087e+08 0.070324230 0.032775208 -33.586436 48.168142 6694.1846 4.2509474e+08 0.069491324 0.031002318 -33.682538 48.061777 6696.4110 4.0924444e+08 0.069324419 0.029846568 -33.778640 47.956938 6698.6375 3.9254976e+08 0.068258391 0.031092873 -33.874748 47.852093 6700.8640 3.8046645e+08 0.066390632 0.031308550 -33.970865 47.747240 6703.0904 3.6480828e+08 0.066017695 0.033901526 -34.066663 47.642071 6705.3169 3.4872841e+08 0.066123464 0.037231979 -34.158397 47.532864 6707.5434 3.3654844e+08 0.065694542 0.040108991 -34.250130 47.423657 6709.7698 3.2239411e+08 0.064680412 0.040642903 -34.352132 47.306136 6711.9963 3.0615966e+08 0.062508992 0.041825724 -34.456973 47.186317 6714.2227 2.8902063e+08 0.060342530 0.047320154 -34.551585 47.074779 6716.4492 2.7252671e+08 0.058457992 0.049062991 -34.643318 46.965572 6718.6757 2.5990591e+08 0.056006846 0.050864706 -34.732906 46.858510 6720.9021 2.4820015e+08 0.055947965 0.050315240 -34.820272 46.753671 6723.1286 2.3499331e+08 0.054784325 0.049440658 -34.907638 46.648832 6725.3550 2.2379381e+08 0.050412262 0.041354240 -34.995004 46.543995 6727.5815 2.1527722e+08 0.049010097 0.040185653 -35.082369 46.439157 6729.8080 2.0869318e+08 0.047770010 0.040506896 -35.169735 46.330332 6732.0344 2.0210396e+08 0.045786141 0.043746548 -35.257101 46.221125 6734.2609 1.9632833e+08 0.044794027 0.049337902 -35.344467 46.114641 6736.4874 1.8696523e+08 0.046380371 0.052197469 -35.431833 46.009801 6738.7138 1.8088228e+08 0.047161952 0.061250961 -35.519199 45.903502 6740.9403 1.7667434e+08 0.046022394 0.065656659 -35.606563 45.794295 6743.1667 1.7287096e+08 0.042125950 0.072172235 -35.694264 45.684611 6745.3932 1.7006183e+08 0.039182463 0.078732183 -35.789121 45.564794 6747.6197 1.6182842e+08 0.034745946 0.067147837 -35.883481 45.445422 6749.8461 1.5824813e+08 0.032501526 0.072046265 -35.966478 45.336215 6752.0726 1.5097212e+08 0.029277691 0.074050487 -36.049474 45.227008 6754.2990 1.4418644e+08 0.027926923 0.075732574 -36.132471 45.121088 6756.5255 1.3650640e+08 0.025114528 0.075519107 -36.215468 45.016249 6758.7520 1.3015954e+08 0.025329155 0.075295451 -36.303962 44.902153 6760.9784 1.2890757e+08 0.025615376 0.077927084 -36.398819 44.777343 6763.2049 1.2486061e+08 0.030955376 0.077061753 -36.488221 44.661721 6765.4313 1.1991442e+08 0.033147848 0.079609937 -36.571230 44.556868 6767.6578 1.1337963e+08 0.031290375 0.081239189 -36.655415 44.448591 6769.8843 1.0886456e+08 0.026367312 0.086599007 -36.745278 44.323781 6772.1107 1.0489992e+08 0.022237878 0.091999155 -36.833249 44.202335 6774.3372 1.0114190e+08 0.018114570 0.097399302 -36.911878 44.097496 6776.5637 99021429. 0.014031408 0.10279945 -36.990507 43.992657 6778.7901 95718912. 0.0099178675 0.10819960 -37.069136 43.887819 6781.0166 90968540. 0.0057475015 0.11359974 -37.147766 43.782980 6783.2430 88170434. 0.0016192846 0.11899989 -37.233024 43.666358 6785.4695 86802058. -0.0024718920 0.12440004 -37.322888 43.541547 6787.6960 83771117. -0.0066467107 0.12980019 -37.409820 43.419667 6789.9224 81679433. -0.010821199 0.13520033 -37.494690 43.299848 6792.1489 73808108. -0.015418020 0.14060048 -37.575916 43.186226 6794.3753 69346657. -0.020027621 0.14600063 -37.654545 43.077020 6796.6018 68530134. -0.024620088 0.15140078 -37.735014 42.964685 6798.8283 65243670. -0.029917768 0.15680092 -37.819886 42.844866 6801.0547 61057463. -0.036346408 0.16220107 -37.901663 42.728143 6803.2812 56104663. -0.046173896 0.16760122 -37.975923 42.618935 6805.5077 52440421. -0.082737402 0.17300137 -38.050246 42.509665 6807.7341 49166927. -0.061818861 0.17840151 -38.135082 42.389885 6809.9606 48356679. -0.0045464252 0.18380166 -38.219937 42.270051