# # 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 = 46.783564 km # Date (UTC) = 2015-11-20T09:47:14.746 # Date (julian) = 2457346.90780956 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6500.8681 6.7335247e+10 0.046200776 0.032544989 -16.469009 63.014711 6502.6891 6.1719916e+10 0.053197446 0.033094109 -16.669089 62.928963 6504.5101 5.6543916e+10 0.060401831 0.033643230 -16.869170 62.843214 6506.3311 5.1873187e+10 0.067910408 0.034192350 -17.069251 62.757466 6508.1522 4.7927407e+10 0.075856156 0.034741471 -17.243721 62.680253 6509.9732 4.4449620e+10 0.084239658 0.035290591 -17.411642 62.605224 6511.7942 4.1379213e+10 0.093073305 0.035839712 -17.579687 62.530117 6513.6152 3.8597933e+10 0.10234565 0.036388832 -17.771413 62.440402 6515.4362 3.5857749e+10 0.11194896 0.036937953 -17.963327 62.350571 6517.2572 3.3098113e+10 0.12182054 0.037487074 -18.153002 62.262978 6519.0782 3.0464311e+10 0.13200209 0.038036194 -18.340833 62.177228 6520.8992 2.8129981e+10 0.14256974 0.038585315 -18.526331 62.092188 6522.7202 2.6165531e+10 0.15157718 0.039105852 -18.690678 62.013588 6524.5412 2.4488902e+10 0.15803978 0.039619239 -18.855026 61.934988 6526.3623 2.3014836e+10 0.16290293 0.040047865 -19.023976 61.853013 6528.1833 2.1646958e+10 0.16826743 0.041587865 -19.203640 61.763180 6530.0043 2.0254019e+10 0.17316698 0.043834674 -19.383305 61.673347 6531.8253 1.8832331e+10 0.17599947 0.046429883 -19.562969 61.583515 6533.6463 1.7441604e+10 0.17748384 0.047794240 -19.742633 61.493683 6535.4673 1.6207136e+10 0.17774242 0.048021585 -19.911821 61.408370 6537.2883 1.5123626e+10 0.17787719 0.048821151 -20.065451 61.329770 6539.1093 1.4158753e+10 0.17666748 0.049775954 -20.219080 61.251169 6540.9303 1.3275205e+10 0.17523635 0.051293613 -20.385956 61.165791 6542.7513 1.2448817e+10 0.17375174 0.051287487 -20.561537 61.075958 6544.5723 1.1667827e+10 0.17222194 0.052108645 -20.732624 60.987860 6546.3934 1.0947152e+10 0.17026789 0.052788194 -20.879108 60.909258 6548.2144 1.0292591e+10 0.16907223 0.053731662 -21.025593 60.830657 6550.0354 9.6750038e+09 0.16813749 0.054994217 -21.179518 60.746611 6551.8564 9.0994607e+09 0.16657160 0.055536355 -21.346933 60.652696 6553.6774 8.5417879e+09 0.16469008 0.054994551 -21.514347 60.558780 6555.4984 8.0219023e+09 0.16314857 0.054434588 -21.662789 60.478748 6557.3194 7.5412320e+09 0.16151372 0.053665899 -21.809273 60.400148 6559.1404 7.1145874e+09 0.15902555 0.052371332 -21.957569 60.319900 6560.9614 6.7199588e+09 0.15648233 0.051407457 -22.120899 60.225983 6562.7824 6.3340786e+09 0.15448259 0.050135384 -22.284230 60.132067 6564.6034 5.9445711e+09 0.15207703 0.048498114 -22.444872 60.040841 6566.4245 5.5688282e+09 0.14977962 0.046942769 -22.604119 59.951010 6568.2455 5.2299191e+09 0.14793803 0.045546019 -22.758447 59.862783 6570.0665 4.9320442e+09 0.14618516 0.044889972 -22.894213 59.780609 6571.8875 4.6672500e+09 0.14391618 0.044260885 -23.029979 59.698435 6573.7085 4.4118381e+09 0.14127502 0.043088931 -23.173710 59.611440 6575.5295 4.1738228e+09 0.13908907 0.041843448 -23.328875 59.517523 6577.3505 3.9463180e+09 0.13687270 0.039669799 -23.484039 59.423606 6579.1715 3.7357202e+09 0.13431549 0.036976203 -23.620550 59.340981 6580.9925 3.5458339e+09 0.13234018 0.035603509 -23.756316 59.258807 6582.8135 3.3737268e+09 0.13096612 0.035072407 -23.893909 59.174724 6584.6346 3.2189349e+09 0.12917819 0.034169846 -24.040906 59.080809 6586.4556 3.0641366e+09 0.12735227 0.033165407 -24.187903 58.986894 6588.2766 2.9173388e+09 0.12592368 0.033287569 -24.324336 58.901357 6590.0976 2.7770714e+09 0.12406202 0.030880553 -24.456530 58.819183 6591.9186 2.6408018e+09 0.12176936 0.028165389 -24.588724 58.737009 6593.7396 2.5089682e+09 0.11963821 0.026414618 -24.730724 58.640362 6595.5606 2.3819847e+09 0.11726530 0.025681708 -24.873638 58.542364 6597.3816 2.2662513e+09 0.11514607 0.025602303 -25.008232 58.451734 6599.2026 2.1593866e+09 0.11338582 0.024941917 -25.133280 58.369559 6601.0236 2.0651628e+09 0.11297590 0.027056821 -25.258327 58.287384 6602.8446 1.9737668e+09 0.11173328 0.026795846 -25.395287 58.197381 6604.6657 1.8831957e+09 0.11042511 0.026466521 -25.538202 58.103466 6606.4867 1.7917969e+09 0.10926586 0.026629442 -25.676448 58.011329 6608.3077 1.7019760e+09 0.10664695 0.023724237 -25.797923 57.925583 6610.1287 1.6207993e+09 0.10368310 0.024125933 -25.919398 57.839837 6611.9497 1.5516769e+09 0.10109515 0.024352832 -26.039384 57.755581 6613.7707 1.4909585e+09 0.099798104 0.023856363 -26.157304 57.673395 6615.5917 1.4302624e+09 0.098245886 0.023269737 -26.275223 57.591209 6617.4127 1.3685487e+09 0.097271974 0.023576086 -26.403581 57.499215 6619.2337 1.3038315e+09 0.096682449 0.024582310 -26.538329 57.401215 6621.0547 1.2422474e+09 0.096113324 0.025071303 -26.670192 57.305927 6622.8757 1.1826187e+09 0.095084696 0.024524897 -26.788094 57.223752 6624.6968 1.1320541e+09 0.093864826 0.025235281 -26.905996 57.141578 6626.5178 1.0858214e+09 0.092482482 0.025931219 -27.028650 57.053512 6628.3388 1.0423150e+09 0.091377425 0.025840642 -27.159314 56.955513 6630.1598 9.9920176e+08 0.090245584 0.025928695 -27.289979 56.857514 6631.9808 9.5853444e+08 0.088766985 0.026030395 -27.402262 56.770828 6633.8018 9.2025037e+08 0.087532758 0.026292240 -27.513019 56.685082 6635.6228 8.8227784e+08 0.086318186 0.026493188 -27.625744 56.597812 6637.4438 8.4564784e+08 0.085255652 0.025944040 -27.752325 56.499813 6639.2648 8.1001883e+08 0.084492303 0.025533417 -27.878906 56.401814 6641.0858 7.7735051e+08 0.084962825 0.025148592 -27.994800 56.314502 6642.9069 7.4405508e+08 0.084561293 0.025188807 -28.105557 56.232328 6644.7279 7.1683150e+08 0.083540244 0.025422272 -28.216314 56.150154 6646.5489 6.8920615e+08 0.082430685 0.026204261 -28.337361 56.054111 6648.3699 6.6269723e+08 0.081411342 0.027211884 -28.459860 55.956114 6650.1909 6.3665598e+08 0.080785858 0.026298937 -28.575812 55.863352 6652.0119 6.1258036e+08 0.080160107 0.027253795 -28.682995 55.777605 6653.8329 5.9073589e+08 0.079520998 0.027950915 -28.790179 55.691857 6655.6539 5.6878224e+08 0.078131775 0.027880417 -28.904421 55.598410 6657.4749 5.4831054e+08 0.076821206 0.029452013 -29.022836 55.500411 6659.2959 5.2933323e+08 0.075628341 0.031772866 -29.138594 55.404610 6661.1169 5.1279925e+08 0.074646123 0.032594513 -29.242205 55.318864 6662.9380 4.9536987e+08 0.073869381 0.032518023 -29.345816 55.233117 6664.7590 4.7806881e+08 0.073354861 0.029429065 -29.453507 55.142708 6666.5800 4.6025290e+08 0.073309727 0.027021611 -29.567839 55.044709 6668.4010 4.4122700e+08 0.072642795 0.027825617 -29.682171 54.946710 6670.2220 4.2232850e+08 0.072552576 0.027225786 -29.783187 54.856796 6672.0430 4.0508570e+08 0.072433409 0.026904525 -29.883224 54.767476 6673.8640 3.9145939e+08 0.071837433 0.028751412 -29.985157 54.677006 6675.6850 3.7626837e+08 0.070105958 0.031110426 -30.099489 54.579009 6677.5060 3.6022385e+08 0.068928080 0.031638841 -30.213821 54.481011 6679.3270 3.4610204e+08 0.068629460 0.029997519 -30.315940 54.391387 6681.1481 3.3163849e+08 0.069523538 0.029770940 -30.412405 54.305640 6682.9691 3.1757578e+08 0.070070349 0.031164942 -30.508870 54.219893 6684.7901 3.0533161e+08 0.069908523 0.032694184 -30.617529 54.123308 6686.6111 2.9067937e+08 0.068760879 0.034116619 -30.727778 54.025310 6688.4321 2.7395114e+08 0.066554985 0.033884931 -30.838027 53.925533 6690.2531 2.6040179e+08 0.065228600 0.033086859 -30.948274 53.823451 6692.0741 2.4967204e+08 0.064241013 0.032679273 -31.058522 53.721369 6693.8951 2.4183295e+08 0.063285717 0.031297009 -31.151647 53.635403 6695.7161 2.3468686e+08 0.063083964 0.029727930 -31.244539 53.549656 6697.5371 2.2968847e+08 0.062348892 0.030159241 -31.339923 53.461609 6699.3581 2.2106946e+08 0.061056416 0.031259967 -31.446088 53.363612 6701.1792 2.1201435e+08 0.059446045 0.031672315 -31.552253 53.265614 6703.0002 2.0540424e+08 0.059233768 0.033675643 -31.645975 53.174027 6704.8212 1.9744390e+08 0.059265459 0.036580792 -31.735295 53.084707 6706.6422 1.9164532e+08 0.058875573 0.039564072 -31.824614 52.995387 6708.4632 1.8634385e+08 0.058359695 0.040547977 -31.925928 52.897911 6710.2842 1.8195563e+08 0.057054118 0.040552123 -32.028011 52.799911 6712.1052 1.7647625e+08 0.055056936 0.042025299 -32.130093 52.699908 6713.9262 1.7010203e+08 0.053044083 0.047036560 -32.232175 52.597827 6715.7472 1.6536825e+08 0.051439930 0.048142833 -32.333576 52.496426 6717.5682 1.6305377e+08 0.049470739 0.049839120 -32.419322 52.410678 6719.3892 1.5303159e+08 0.047613910 0.051000025 -32.505068 52.324931 6721.2103 1.4539857e+08 0.047746590 0.050367250 -32.593788 52.236210 6723.0313 1.3904950e+08 0.046559961 0.049386382 -32.691787 52.138212 6724.8523 1.3443829e+08 0.042697022 0.042809611 -32.789787 52.040215 6726.6733 1.3319008e+08 0.040762721 0.040957440 -32.887784 51.938976 6728.4943 1.2498791e+08 0.040161750 0.040328677 -32.985782 51.836894 6730.3153 1.1278298e+08 0.038407228 0.040811223 -33.078325 51.739211 6732.1363 98595648. 0.036423907 0.043765304 -33.160500 51.649891 6733.9573 90480669. 0.035072817 0.049121893 -33.242674 51.560571 6735.7783 82908929. 0.036012275 0.050119689 -33.333485 51.466514 6737.5993 80396405. 0.037037128 0.056044783 -33.431484 51.368515 6739.4204 87907820. 0.037847886 0.063340981 -33.528693 51.270121 6741.2414 93640308. 0.037042681 0.066447065 -33.618526 51.168039 6743.0624 90348299. 0.033800863 0.071468185 -33.708358 51.065957 6744.8834 86562918. 0.030747862 0.078476683 -33.800835 50.966521 6746.7044 84389938. 0.027288630 0.070797973 -33.894750 50.868524 6748.5254 81615404. 0.026101203 0.069781036 -33.985624 50.772248 6750.3464 79278924. 0.023222702 0.072595636 -34.064236 50.682915 6752.1674 78674776. 0.020411279 0.073940744 -34.142848 50.593582 6753.9884 77608636. 0.019127955 0.076176017 -34.225944 50.499154 6755.8094 73861788. 0.016091619 0.074250459 -34.315762 50.397089 6757.6304 71194822. 0.013525982 0.074826824 -34.405580 50.295024 6759.4515 65858597. 0.011056170 0.075928898 -34.495411 50.196825 6761.2725 60103558. 0.0050648015 0.077990736 -34.585244 50.098826 6763.0935 56967204. -0.027444370 0.076722439 -34.673027 49.998778 6764.9145 54673195. 0.00097883995 0.079527096 -34.758775 49.896696 6766.7355 52813517. 0.047075244 0.081377444 -34.844523 49.794614 6768.5565 50876140. 0.073630831 0.082858448 -34.930272 49.692533