# # 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 = 62.510902 km # Date (UTC) = 2011-12-11T09:46:11.476 # Date (julian) = 2455906.90707727 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6520.7911 5.1438076e+10 0.15187989 0.038552715 106.97450 32.029897 6523.4942 4.4945419e+10 0.16053292 0.039301611 107.04595 31.899292 6526.1974 3.9544980e+10 0.16475014 0.039875021 107.11666 31.772010 6528.9005 3.5375453e+10 0.16850114 0.042156865 107.18421 31.644728 6531.6037 3.1838225e+10 0.17128231 0.046107303 107.25021 31.517446 6534.3068 2.8556701e+10 0.17202366 0.048030377 107.32074 31.381434 6537.0099 2.5539878e+10 0.17159781 0.048689904 107.39499 31.238240 6539.7131 2.2830829e+10 0.17085932 0.050506764 107.46377 31.105586 6542.4162 2.0502850e+10 0.16875787 0.051160247 107.52977 30.978287 6545.1193 1.8586895e+10 0.16747311 0.052456636 107.59578 30.850997 6547.8225 1.6911991e+10 0.16585647 0.053600131 107.66177 30.723715 6550.5256 1.5472082e+10 0.16457791 0.055116964 107.72777 30.596433 6553.2287 1.4232732e+10 0.16330862 0.055220088 107.79377 30.469151 6555.9319 1.3078916e+10 0.16111623 0.054070376 107.86224 30.337102 6558.6350 1.1948138e+10 0.15905147 0.052698208 107.93649 30.193908 6561.3381 1.0875101e+10 0.15598331 0.051206056 108.00733 30.057295 6564.0413 9.9244282e+09 0.15251300 0.048752895 108.07334 29.929996 6566.7444 9.1363117e+09 0.14943414 0.046761778 108.13796 29.802702 6569.4475 8.4784934e+09 0.14630304 0.044881552 108.19924 29.675420 6572.1507 7.8898547e+09 0.14370051 0.044143870 108.26053 29.548138 6574.8538 7.3777947e+09 0.14094611 0.042444924 108.32181 29.420856 6577.5569 6.8921758e+09 0.13839742 0.039345553 108.38375 29.293038 6580.2601 6.3891260e+09 0.13588326 0.036280406 108.45799 29.155148 6582.9632 5.8994620e+09 0.13391974 0.035031678 108.53010 29.019007 6585.6663 5.4484911e+09 0.13183833 0.033438046 108.59139 28.891725 6588.3695 5.0698728e+09 0.13024988 0.033256542 108.65268 28.764442 6591.0726 4.7721821e+09 0.12759121 0.029119974 108.71397 28.637143 6593.7757 4.4880748e+09 0.12517941 0.026381010 108.77526 28.509844 6596.4789 4.1971467e+09 0.12228680 0.025725097 108.84361 28.367879 6599.1820 3.9138478e+09 0.12041556 0.024940678 108.91228 28.225275 6601.8852 3.6418644e+09 0.12046240 0.027462546 108.97356 28.097993 6604.5883 3.4077613e+09 0.11920764 0.026420582 109.03484 27.970710 6607.2914 3.2076960e+09 0.11776570 0.025131548 109.09613 27.847746 6609.9946 3.0290508e+09 0.11404996 0.024001361 109.15741 27.725179 6612.6977 2.8722237e+09 0.11137969 0.023799464 109.21495 27.598852 6615.4008 2.7261721e+09 0.10948453 0.023263864 109.27153 27.471553 6618.1040 2.5760137e+09 0.10800598 0.023849298 109.33644 27.333548 6620.8071 2.4245720e+09 0.10657888 0.025027283 109.40538 27.190353 6623.5102 2.2819908e+09 0.10412409 0.024680858 109.46458 27.063413 6626.2134 2.1572483e+09 0.10176255 0.026319059 109.52115 26.940845 6628.9165 2.0370309e+09 0.099296834 0.026075202 109.58597 26.804524 6631.6196 1.9191256e+09 0.097031501 0.025993708 109.65491 26.661329 6634.3228 1.8090664e+09 0.095367740 0.026350387 109.71419 26.534249 6637.0259 1.7141370e+09 0.093958879 0.026148726 109.77076 26.411682 6639.7290 1.6363312e+09 0.093656284 0.025367501 109.82734 26.285992 6642.4322 1.5640623e+09 0.093998979 0.025169381 109.88392 26.158693 6645.1353 1.4906910e+09 0.093021483 0.025515070 109.94716 26.025685 6647.8384 1.4119114e+09 0.091861714 0.026879223 110.01610 25.887794 6650.5416 1.3414383e+09 0.091043115 0.026379219 110.07696 25.756835 6653.2447 1.2752066e+09 0.090532040 0.027650601 110.13354 25.629553 6655.9478 1.2142436e+09 0.088561738 0.028001867 110.19387 25.496626 6658.6510 1.1521623e+09 0.086629341 0.031215602 110.25751 25.358735 6661.3541 1.0864412e+09 0.084938934 0.032715307 110.31353 25.227703 6664.0572 1.0331960e+09 0.083194742 0.031996621 110.36538 25.100421 6666.7604 9.8730336e+08 0.082984155 0.027056765 110.41972 24.975607 6669.4635 9.4868088e+08 0.081608622 0.027879638 110.47630 24.853023 6672.1667 9.1203777e+08 0.081199827 0.026976194 110.53573 24.722106 6674.8698 8.6985628e+08 0.079505000 0.029688513 110.59937 24.578912 6677.5729 8.2565066e+08 0.077025173 0.031543751 110.66301 24.438468 6680.2761 7.8089231e+08 0.077020326 0.029501028 110.72666 24.300578 6682.9792 7.3919112e+08 0.077618340 0.031172681 110.78284 24.172389 6685.6823 7.0692036e+08 0.076829778 0.033425541 110.83469 24.049822 6688.3855 6.7583417e+08 0.073508104 0.033874167 110.89258 23.916694 6691.0886 6.4247477e+08 0.071539381 0.032980360 110.95623 23.773499 6693.7917 6.1435572e+08 0.070269280 0.031332477 111.01248 23.643224 6696.4949 5.8740120e+08 0.069984773 0.029881391 111.06434 23.520656 6699.1980 5.6443725e+08 0.068570217 0.031407737 111.11947 23.390339 6701.9011 5.4239233e+08 0.066537576 0.032731663 111.17782 23.252428 6704.6043 5.1780137e+08 0.067021859 0.036474280 111.23506 23.124028 6707.3074 4.9408473e+08 0.066778328 0.040142791 111.29163 23.001460 6710.0105 4.7287114e+08 0.065704675 0.040498557 111.34909 22.871252 6712.7137 4.5436701e+08 0.063171043 0.043155006 111.40742 22.733360 6715.4168 4.3624177e+08 0.060738637 0.047804885 111.46576 22.595469 6718.1199 4.1939918e+08 0.058151494 0.049999211 111.52410 22.457578 6720.8231 3.9933153e+08 0.057481600 0.050324399 111.58244 22.315829 6723.5262 3.8042268e+08 0.055996394 0.049662420 111.64078 22.172634 6726.2293 3.6575922e+08 0.051511378 0.040953436 111.69366 22.046806 6728.9325 3.5073171e+08 0.050739294 0.040949727 111.74552 21.924238 6731.6356 3.4027351e+08 0.048446990 0.043015011 111.80204 21.790627 6734.3387 3.2583923e+08 0.047432523 0.049333218 111.86038 21.652735 6737.0419 3.0989879e+08 0.049519754 0.054268980 111.91873 21.514828 6739.7450 2.9541752e+08 0.049924129 0.063738310 111.97708 21.376917 6742.4482 2.7894439e+08 0.046898944 0.069702755 112.03038 21.239025 6745.1513 2.6785557e+08 0.042528888 0.078630486 112.08375 21.101134 6747.8544 2.5704116e+08 0.038159494 0.067067017 112.14209 20.963243 6750.5576 2.4413994e+08 0.035461725 0.072956178 112.20043 20.825352 6753.2607 2.3185217e+08 0.032570857 0.073820928 112.25877 20.687461 6755.9638 2.2057679e+08 0.029955297 0.074182770 112.31382 20.555445 6758.6670 2.1286796e+08 0.029694470 0.075115694 112.36097 20.437591 6761.3701 2.1123991e+08 0.031491002 0.077998802 112.41003 20.316292 6764.0732 2.0720944e+08 0.036803457 0.079486794 112.46837 20.178401 6766.7764 2.0196751e+08 0.037883409 0.081469893 112.52519 20.040510 6769.4795 1.9425636e+08 0.032406717 0.085617252 112.57822 19.902619 6772.1826 1.8521527e+08 0.027635792 0.092173541 112.63673 19.756831 6774.8858 1.7622990e+08 0.022872345 0.098729831 112.70340 19.599238 6777.5889 1.6675312e+08 0.018120082 0.10528612 112.75984 19.456426 6780.2920 1.5669507e+08 0.013386122 0.11184241 112.81288 19.318514 6782.9952 1.4806407e+08 0.0086455140 0.11839870 112.86591 19.185211 6785.6983 1.4343521e+08 0.0038614814 0.12495499 112.91895 19.052623 6788.4014 1.4000650e+08 -0.00093474990 0.13151128 112.97718 18.914838 6791.1046 1.3610625e+08 -0.0057187441 0.13806757 113.03502 18.776948 6793.8077 1.2915276e+08 -0.010459889 0.14462386 113.08805 18.639057 6796.5108 1.2301429e+08 -0.015205579 0.15118015 113.14109 18.501166 6799.2140 1.1870443e+08 -0.019968477 0.15773644 113.19413 18.363275 6801.9171 1.1411157e+08 -0.024718670 0.16429273 113.24962 18.220970 6804.6202 1.1109465e+08 -0.029488072 0.17084902 113.31023 18.069438 6807.3234 1.0450230e+08 -0.034195992 0.17740531 113.36573 17.927096 6810.0265 1.0033589e+08 -0.038910590 0.18396160 113.41877 17.789205 6812.7297 97481271. -0.043613214 0.19051789 113.47180 17.655494 6815.4328 91488415. -0.048241693 0.19707418 113.52484 17.522907 6818.1359 86576876. -0.052864728 0.20363047 113.58471 17.367748 6820.8391 81315661. -0.057471792 0.21018676 113.64341 17.216477 6823.5422 77135610. -0.062085510 0.21674305 113.69645 17.083890 6826.2453 75038267. -0.066733389 0.22329934 113.75227 16.942118 6828.9485 73126808. -0.071379555 0.22985563 113.81288 16.784524 6831.6516 68147093. -0.075940792 0.23641192 113.86425 16.644872 6834.3547 65317398. -0.080538489 0.24296821 113.91198 16.512284 6837.0579 62602515. -0.085123807 0.24952450 113.97042 16.358894 6839.7610 62041948. -0.089760775 0.25608079 114.03104 16.202405 6842.4641 63589487. -0.094450741 0.26263708 114.09165 16.050873 6845.1673 62960976. -0.099055275 0.26919337 114.14541 15.906602 6847.8704 61890131. -0.10360997 0.27574966 114.19314 15.768712 6850.5735 62557087. -0.10817013 0.28230595 114.24920 15.621998 6853.2767 59148715. -0.11241568 0.28886224 114.30981 15.470466 6855.9798 53898385. -0.11636468 0.29541853 114.37043 15.318934 6858.6829 47371429. -0.11668354 0.30197482 114.42894 15.165298 6861.3861 43430937. -0.12441546 0.30853111 114.48349 15.007705 6864.0892 47057331. -0.13705566 0.31508740 114.53698 14.867549