# # 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 = 42.758434 km # Date (UTC) = 2015-12-17T09:39:12.012 # Date (julian) = 2457373.90222236 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6495.6518 7.4226749e+10 0.031265831 0.030972014 -24.002601 51.059200 6497.6599 6.8869916e+10 0.037350741 0.031577549 -24.100658 50.975151 6499.6680 6.2848815e+10 0.043462573 0.032183083 -24.198715 50.891102 6501.6760 5.7879951e+10 0.049778462 0.032788617 -24.296771 50.807054 6503.6841 5.3445773e+10 0.056412305 0.033394152 -24.394827 50.723006 6505.6922 4.9482629e+10 0.063492712 0.033999686 -24.492885 50.639417 6507.7003 4.5994304e+10 0.071160006 0.034605220 -24.590955 50.558858 6509.7084 4.2785412e+10 0.079451069 0.035210755 -24.689025 50.478300 6511.7165 3.9709191e+10 0.088407033 0.035816289 -24.786123 50.396778 6513.7246 3.6919035e+10 0.098158900 0.036421823 -24.880678 50.312730 6515.7327 3.4239768e+10 0.10865207 0.037027358 -24.975233 50.228683 6517.7408 3.1729516e+10 0.11993110 0.037632892 -25.069787 50.144634 6519.7489 2.9338427e+10 0.13188988 0.038238427 -25.164341 50.060585 6521.7570 2.6988965e+10 0.14441906 0.038843961 -25.258895 49.976536 6523.7650 2.4733613e+10 0.15233416 0.039368727 -25.353450 49.892488 6525.7731 2.2640314e+10 0.15922164 0.039693979 -25.448005 49.808440 6527.7812 2.0734836e+10 0.16658525 0.041283650 -25.542559 49.724392 6529.7893 1.9029407e+10 0.17260011 0.043493094 -25.634637 49.642822 6531.7974 1.7444971e+10 0.17674046 0.046389313 -25.725701 49.562265 6533.8055 1.6049718e+10 0.17851584 0.047861899 -25.816766 49.481708 6535.8136 1.4890653e+10 0.17786794 0.047871366 -25.900037 49.405351 6537.8217 1.3942244e+10 0.17797153 0.049072610 -25.981983 49.329708 6539.8298 1.3178724e+10 0.17722959 0.050648041 -26.063930 49.254065 6541.8379 1.2422203e+10 0.17488467 0.051054819 -26.152085 49.172691 6543.8459 1.1643791e+10 0.17279202 0.051603916 -26.243138 49.088643 6545.8540 1.0863404e+10 0.17087515 0.052463218 -26.334191 49.004595 6547.8621 1.0094957e+10 0.16982877 0.053615217 -26.422359 48.920537 6549.8702 9.3986720e+09 0.16853292 0.054853104 -26.509921 48.836477 6551.8783 8.7470546e+09 0.16692402 0.055544052 -26.597483 48.752417 6553.8864 8.1434599e+09 0.16477346 0.054889485 -26.685034 48.668368 6555.8945 7.6062468e+09 0.16280059 0.054101778 -26.772584 48.584318 6557.9026 7.1053754e+09 0.16114573 0.053300366 -26.860135 48.500269 6559.9107 6.6522310e+09 0.15876215 0.052284392 -26.947685 48.416222 6561.9188 6.2371626e+09 0.15585897 0.050919935 -27.035236 48.332174 6563.9269 5.8360515e+09 0.15268908 0.048856211 -27.121875 48.248126 6565.9349 5.4670460e+09 0.15014866 0.047256755 -27.205923 48.164077 6567.9430 5.1207591e+09 0.14818394 0.045819828 -27.289972 48.080028 6569.9511 4.7979632e+09 0.14601833 0.044914328 -27.375442 47.995975 6571.9592 4.5031271e+09 0.14337486 0.044241295 -27.463004 47.911916 6573.9673 4.2259587e+09 0.13986942 0.042881241 -27.550566 47.827857 6575.9754 3.9685646e+09 0.13683098 0.041396079 -27.634272 47.743804 6577.9835 3.7271391e+09 0.13408279 0.038675552 -27.714819 47.659754 6579.9916 3.5120063e+09 0.13160980 0.036525383 -27.795365 47.575705 6581.9997 3.3111051e+09 0.12951758 0.035293896 -27.878342 47.491657 6584.0078 3.1268564e+09 0.12743028 0.034511285 -27.962390 47.407610 6586.0158 2.9527664e+09 0.12555313 0.033171091 -28.046439 47.323562 6588.0239 2.7912646e+09 0.12419945 0.033371936 -28.127551 47.239513 6590.0320 2.6419330e+09 0.12218835 0.031002487 -28.208098 47.155464 6592.0401 2.4966652e+09 0.11973798 0.028034557 -28.288645 47.071415 6594.0482 2.3630299e+09 0.11735408 0.026146059 -28.369202 46.987356 6596.0563 2.2316711e+09 0.11462941 0.025727018 -28.449758 46.903297 6598.0644 2.1111031e+09 0.11271977 0.025376422 -28.530314 46.819240 6600.0725 2.0014593e+09 0.11178414 0.025138886 -28.610860 46.735191 6602.0806 1.8928356e+09 0.11093087 0.027447875 -28.691407 46.651141 6604.0887 1.7909314e+09 0.10917748 0.026123922 -28.771953 46.567092 6606.0968 1.7029261e+09 0.10841580 0.027330099 -28.852499 46.483043 6608.1048 1.6166899e+09 0.10583316 0.023729600 -28.933046 46.398994 6610.1129 1.5406749e+09 0.10256693 0.024110886 -29.012132 46.314946 6612.1210 1.4643039e+09 0.099943397 0.024230326 -29.089176 46.230898 6614.1291 1.3846847e+09 0.098527187 0.023851536 -29.166221 46.146850 6616.1372 1.3139616e+09 0.096545072 0.023303833 -29.243272 46.060829 6618.1453 1.2478688e+09 0.095410652 0.023880513 -29.320326 45.973267 6620.1534 1.1880405e+09 0.094200938 0.024816627 -29.397380 45.885705 6622.1615 1.1336456e+09 0.092616690 0.024715012 -29.474428 45.800625 6624.1696 1.0736229e+09 0.090826176 0.024953079 -29.551472 45.716575 6626.1777 1.0165441e+09 0.089864413 0.026364550 -29.628516 45.632526 6628.1857 9.6756684e+08 0.088570200 0.025778511 -29.702581 45.548478 6630.1938 9.1581762e+08 0.087485604 0.025928779 -29.776123 45.464431 6632.2019 8.7562238e+08 0.086040528 0.026056558 -29.849683 45.380383 6634.2100 8.3196845e+08 0.084814119 0.026342163 -29.926694 45.296334 6636.2181 7.9626987e+08 0.083496411 0.026465051 -30.003738 45.212285 6638.2262 7.5799397e+08 0.082656405 0.025661787 -30.080294 45.128235 6640.2343 7.2073397e+08 0.082779425 0.025241986 -30.153847 45.044176 6642.2424 6.8849272e+08 0.082760461 0.025161615 -30.227399 44.960116 6644.2505 6.5542035e+08 0.081769942 0.025370677 -30.299952 44.876060 6646.2586 6.3287504e+08 0.080689733 0.026053988 -30.369992 44.792011 6648.2667 6.0031640e+08 0.079709134 0.027142784 -30.440031 44.707962 6650.2747 5.7399323e+08 0.079011959 0.026318134 -30.511575 44.623913 6652.2828 5.4842596e+08 0.078405884 0.027328340 -30.585118 44.539864 6654.2909 5.2183931e+08 0.077514802 0.027912288 -30.658661 44.455815 6656.2990 5.0018673e+08 0.075638928 0.028285863 -30.735218 44.363476 6658.3071 4.7327849e+08 0.074180455 0.030605740 -30.814014 44.264980 6660.3152 4.4868366e+08 0.072762110 0.031912497 -30.892498 44.167000 6662.3233 4.2488523e+08 0.071303409 0.032862888 -30.962539 44.082952 6664.3314 4.0274527e+08 0.070119501 0.030993588 -31.032580 43.998904 6666.3395 3.8561775e+08 0.070019873 0.026974745 -31.102622 43.914853 6668.3476 3.7023478e+08 0.069198026 0.027778340 -31.172672 43.830793 6670.3557 3.5204529e+08 0.069052046 0.027163866 -31.242722 43.746733 6672.3637 3.3225295e+08 0.068961390 0.027090430 -31.312769 43.662677 6674.3718 3.1609546e+08 0.068105535 0.029268455 -31.382809 43.578630 6676.3799 3.0164021e+08 0.066103742 0.031958581 -31.452849 43.494582 6678.3880 2.9018171e+08 0.065392868 0.030677095 -31.522889 43.410534 6680.3961 2.8103875e+08 0.065938105 0.029526951 -31.592929 43.326485 6682.4042 2.7216958e+08 0.066596587 0.030733362 -31.662970 43.242436 6684.4123 2.6220175e+08 0.066672687 0.032675013 -31.735968 43.151935 6686.4204 2.5023702e+08 0.065755027 0.034005664 -31.810825 43.057379 6688.4285 2.3671608e+08 0.063343304 0.033884095 -31.885051 42.963354 6690.4366 2.2332177e+08 0.061992845 0.033065834 -31.951598 42.875792 6692.4446 2.1216966e+08 0.061133058 0.032248989 -32.018145 42.788230 6694.4527 2.0132498e+08 0.060419038 0.030626493 -32.084691 42.701444 6696.4608 1.9260750e+08 0.060189495 0.029867250 -32.151228 42.617395 6698.4689 1.8532656e+08 0.059267638 0.030861460 -32.217766 42.533346 6700.4770 1.7939029e+08 0.057730135 0.031021528 -32.287343 42.445459 6702.4851 1.6965911e+08 0.056852044 0.033264083 -32.362201 42.350904 6704.4932 1.6276548e+08 0.057204517 0.036419735 -32.437059 42.256349 6706.5013 1.5714620e+08 0.057146622 0.039318841 -32.502139 42.170483 6708.5094 1.4885857e+08 0.056891107 0.040598263 -32.565176 42.086434 6710.5175 1.4358989e+08 0.055762231 0.040597781 -32.628213 42.002385 6712.5256 1.3410475e+08 0.054152297 0.042805730 -32.698906 41.908126 6714.5336 1.2391432e+08 0.052628515 0.047343528 -32.769823 41.813569 6716.5417 1.1778929e+08 0.051323385 0.049199281 -32.838846 41.723563 6718.5498 1.1258188e+08 0.049688207 0.050668720 -32.905393 41.639504 6720.5579 1.0936469e+08 0.049935976 0.050355122 -32.971939 41.555445 6722.5660 1.0756779e+08 0.049878797 0.049905477 -33.041014 41.463037 6724.5741 1.0276509e+08 0.047196706 0.045132613 -33.111931 41.364542 6726.5822 97843290. 0.045216207 0.040956618 -33.182391 41.266626 6728.5903 93026795. 0.045348601 0.040464712 -33.241924 41.182577 6730.5984 85007387. 0.044511291 0.041199334 -33.301458 41.098528 6732.6065 79978384. 0.043845828 0.043851855 -33.363094 41.012539 6734.6145 80499731. 0.043870174 0.049316624 -33.434011 40.917983 6736.6226 76665448. 0.046078643 0.052708919 -33.504929 40.823427 6738.6307 71664532. 0.047705506 0.060793533 -33.568487 40.735664 6740.6388 67803985. 0.047795478 0.065141672 -33.628022 40.651615 6742.6469 64052512. 0.046137775 0.070187064 -33.687557 40.567566 6744.6550 67859111. 0.043319947 0.078300036 -33.756095 40.475207 6746.6631 63432004. 0.049378427 0.071278129 -33.827013 40.380652 6748.6712 57740792. 0.040622899 0.070547997 -33.896936 40.286093 6750.6793 53357135. 0.019018403 0.073164012 -33.963922 40.191522