# # 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 = 44.737111 km # Date (UTC) = 2015-01-17T09:04:24.664 # Date (julian) = 2457039.87806324 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6497.9669 7.4053369e+10 0.035364329 0.031670135 -13.772962 53.198481 6499.9709 6.7923597e+10 0.042282535 0.032274426 -13.887000 53.100173 6501.9748 6.2905691e+10 0.049554515 0.032878716 -14.003210 52.998447 6503.9788 5.8161833e+10 0.057175414 0.033483007 -14.129029 52.881615 6505.9828 5.3394855e+10 0.065090072 0.034087298 -14.254848 52.764783 6507.9867 4.8760278e+10 0.073336915 0.034691588 -14.384955 52.652279 6509.9907 4.4735856e+10 0.082094386 0.035295879 -14.515245 52.539960 6511.9947 4.1037658e+10 0.091327121 0.035900170 -14.638961 52.424333 6513.9986 3.7790521e+10 0.10115165 0.036504460 -14.760286 52.307502 6516.0026 3.4729775e+10 0.11146765 0.037108751 -14.883893 52.192953 6518.0066 3.1865672e+10 0.12226474 0.037713042 -15.009712 52.080615 6520.0105 2.9326845e+10 0.13361137 0.038317332 -15.129983 51.971128 6522.0145 2.7199675e+10 0.14552477 0.038921047 -15.236156 51.868888 6524.0185 2.5482647e+10 0.15222071 0.039433520 -15.342328 51.766648 6526.0224 2.3921517e+10 0.15811264 0.039691603 -15.456382 51.656942 6528.0264 2.2317980e+10 0.16497027 0.041463424 -15.573213 51.544605 6530.0304 2.0748186e+10 0.17057188 0.043871203 -15.690035 51.429967 6532.0343 1.9222634e+10 0.17463323 0.046712869 -15.806846 51.313154 6534.0383 1.7889595e+10 0.17629615 0.047955269 -15.919460 51.200540 6536.0423 1.6815497e+10 0.17595559 0.047828313 -16.021700 51.098300 6538.0462 1.5881141e+10 0.17668219 0.049179191 -16.123940 50.996061 6540.0502 1.5046765e+10 0.17601338 0.050877814 -16.237053 50.886296 6542.0542 1.4108595e+10 0.17348728 0.051022800 -16.353885 50.773958 6544.0581 1.3113146e+10 0.17132123 0.051691500 -16.468381 50.659284 6546.0621 1.2121852e+10 0.16934253 0.052515617 -16.580719 50.542452 6548.0661 1.1237908e+10 0.16840003 0.053687373 -16.688924 50.429918 6550.0700 1.0541634e+10 0.16731638 0.055002892 -16.787217 50.327694 6552.0740 9.9739931e+09 0.16581724 0.055568144 -16.885511 50.225469 6554.0780 9.4555667e+09 0.16365908 0.054834016 -16.990976 50.112276 6556.0819 8.9195973e+09 0.16178645 0.054001082 -17.098821 49.995443 6558.0859 8.3459083e+09 0.16035837 0.053166118 -17.209026 49.880972 6560.0899 7.7786534e+09 0.15837298 0.052193295 -17.321364 49.768634 6562.0938 7.2909199e+09 0.15594136 0.050790631 -17.427129 49.659330 6564.0978 6.8786541e+09 0.15315488 0.048727281 -17.517559 49.557106 6566.1018 6.5477232e+09 0.15093827 0.047125324 -17.607990 49.454881 6568.1057 6.2204956e+09 0.14934600 0.045674483 -17.711596 49.341604 6570.1097 5.8454842e+09 0.14778231 0.044872074 -17.819441 49.224771 6572.1136 5.4719770e+09 0.14581607 0.044165072 -17.918036 49.115698 6574.1176 5.1598835e+09 0.14300905 0.042798515 -18.008465 49.013474 6576.1216 4.9061631e+09 0.14024189 0.041231451 -18.098895 48.911249 6578.1255 4.6715706e+09 0.13730471 0.038451361 -18.202088 48.794597 6580.1295 4.4207027e+09 0.13456000 0.036401064 -18.305439 48.677766 6582.1335 4.1415336e+09 0.13231858 0.035257472 -18.408790 48.560934 6584.1374 3.8770072e+09 0.13039477 0.034440639 -18.512141 48.444101 6586.1414 3.6409093e+09 0.12877001 0.033169468 -18.606443 48.337223 6588.1454 3.4557544e+09 0.12750633 0.033331382 -18.692942 48.238929 6590.1493 3.3071613e+09 0.12552076 0.030784265 -18.779441 48.140635 6592.1533 3.1540540e+09 0.12321387 0.027924616 -18.882683 48.023925 6594.1573 2.9868564e+09 0.12101267 0.026086187 -18.986033 47.907094 6596.1612 2.8224022e+09 0.11848402 0.025726541 -19.073420 47.801481 6598.1652 2.6861322e+09 0.11665562 0.025328289 -19.155986 47.699255 6600.1692 2.5776612e+09 0.11580765 0.025337665 -19.242213 47.593746 6602.1731 2.4566142e+09 0.11498208 0.027368883 -19.341071 47.476916 6604.1771 2.3280450e+09 0.11341562 0.026176436 -19.439901 47.360111 6606.1811 2.2017488e+09 0.11277304 0.027178583 -19.522507 47.257849 6608.1850 2.0950230e+09 0.11022406 0.023727479 -19.605073 47.155623 6610.1890 2.0065604e+09 0.10702303 0.024183568 -19.693018 47.046738 6612.1930 1.9001425e+09 0.10466674 0.024176572 -19.787382 46.929907 6614.1969 1.7984961e+09 0.10333401 0.023804811 -19.879028 46.816443 6616.2009 1.7105988e+09 0.10142179 0.023313830 -19.961594 46.714218 6618.2049 1.6418499e+09 0.10026838 0.023925496 -20.044160 46.611993 6620.2088 1.5769986e+09 0.098958125 0.024834494 -20.134833 46.499732 6622.2128 1.4967622e+09 0.097253744 0.024701352 -20.229197 46.382900 6624.2168 1.4151159e+09 0.095269034 0.024978344 -20.316300 46.272810 6626.2207 1.3480236e+09 0.094001835 0.026309670 -20.394935 46.170586 6628.2247 1.2980856e+09 0.092571875 0.025794325 -20.473569 46.068361 6630.2287 1.2477299e+09 0.091360748 0.025928865 -20.562521 45.952723 6632.2326 1.1904920e+09 0.089955311 0.026060240 -20.652391 45.835891 6634.2366 1.1303533e+09 0.088734991 0.026344101 -20.734477 45.729179 6636.2406 1.0809885e+09 0.087417207 0.026456332 -20.813112 45.626954 6638.2445 1.0370408e+09 0.086498841 0.025660989 -20.893425 45.522547 6640.2485 9.9144052e+08 0.086584514 0.025240248 -20.983296 45.405714 6642.2525 9.4134299e+08 0.086591567 0.025162027 -21.073167 45.288881 6644.2564 8.9366493e+08 0.085606696 0.025371320 -21.149024 45.185546 6646.2604 8.5654350e+08 0.084554070 0.026054935 -21.223727 45.083321 6648.2644 8.2263335e+08 0.083470837 0.027141247 -21.302492 44.975538 6650.2683 7.8332657e+08 0.082784202 0.026316664 -21.387868 44.858705 6652.2723 7.4175435e+08 0.082219499 0.027325439 -21.471590 44.744137 6654.2763 7.0938832e+08 0.081282152 0.027918538 -21.546305 44.641897 6656.2802 6.8681145e+08 0.079313373 0.028269368 -21.621019 44.539657 6658.2842 6.6625257e+08 0.077687385 0.030565094 -21.702251 44.428498 6660.2882 6.3745155e+08 0.076179764 0.031887917 -21.787614 44.311688 6662.2921 6.0613610e+08 0.074655951 0.032880374 -21.871246 44.194868 6664.2961 5.7173088e+08 0.073387211 0.031122718 -21.952130 44.078035 6666.3001 5.4136318e+08 0.073203369 0.026967064 -22.032021 43.963550 6668.3040 5.1455703e+08 0.072274294 0.027739810 -22.106735 43.861310 6670.3080 4.9017293e+08 0.071947381 0.027185948 -22.181449 43.759070 6672.3120 4.7220557e+08 0.071727992 0.027060412 -22.259974 43.647814 6674.3159 4.5110185e+08 0.070876066 0.029221288 -22.340858 43.530982 6676.3199 4.3063398e+08 0.068850885 0.031919887 -22.417773 43.419882 6678.3238 4.1323275e+08 0.068101685 0.030720009 -22.488544 43.317657 6680.3278 3.9942643e+08 0.068562351 0.029512205 -22.559316 43.215433 6682.3318 3.8438780e+08 0.069216787 0.030678037 -22.634857 43.100806 6684.3357 3.6453462e+08 0.069339704 0.032671130 -22.711247 42.983974 6686.3397 3.4668020e+08 0.068497834 0.033958735 -22.784134 42.876250 6688.3437 3.3004954e+08 0.066089027 0.033864523 -22.854905 42.774025 6690.3476 3.1885686e+08 0.064560380 0.033076023 -22.926128 42.670268 6692.3516 3.0820348e+08 0.063583326 0.032357023 -23.002518 42.548943 6694.3556 2.9407890e+08 0.062757975 0.030762666 -23.078908 42.427618 6696.3595 2.8319091e+08 0.062469722 0.029825169 -23.155297 42.310134 6698.3635 2.6905002e+08 0.061504259 0.030716776 -23.231687 42.193304 6700.3675 2.5588951e+08 0.059880820 0.030940286 -23.302066 42.085665 6702.3714 2.4475574e+08 0.058670232 0.033173328 -23.368906 41.983439 6704.3754 2.3366441e+08 0.058855601 0.036361898 -23.436566 41.879957 6706.3794 2.2404379e+08 0.058628710 0.039106675 -23.512956 41.763127 6708.3833 2.1744937e+08 0.058121114 0.040461022 -23.589346 41.646296 6710.3873 2.0855970e+08 0.056738117 0.040572305 -23.657518 41.542032 6712.3913 2.0135811e+08 0.054714412 0.042556420 -23.724358 41.439806 6714.3952 1.9484234e+08 0.052735394 0.047333122 -23.792801 41.332948 6716.3992 1.8259624e+08 0.051056514 0.048989351 -23.864698 41.216117 6718.4032 1.7552042e+08 0.049058407 0.050440321 -23.936594 41.099286 6720.4071 1.6771106e+08 0.048657624 0.050372592 -24.008490 40.982454 6722.4111 1.6121222e+08 0.048370405 0.050096974 -24.080386 40.865622 6724.4151 1.5648436e+08 0.045602689 0.046460573 -24.144496 40.761444 6726.4190 1.4790795e+08 0.042805170 0.040955147 -24.207404 40.659219 6728.4230 1.3888379e+08 0.042381625 0.040227630 -24.273213 40.552278 6730.4270 1.3273709e+08 0.041020227 0.040964326 -24.345110 40.435448 6732.4309 1.2516928e+08 0.039729139 0.043819542 -24.417006 40.319055 6734.4349 1.1719134e+08 0.039297760 0.049327433 -24.488902 40.206716 6736.4389 1.1108321e+08 0.041037557 0.052014160 -24.560799 40.094378 6738.4428 1.0728593e+08 0.042163000 0.059759078 -24.628777 39.978121 6740.4468 1.0587077e+08 0.041802420 0.064813637 -24.696179 39.861288 6742.4508 1.0252770e+08 0.039377490 0.069709120 -24.760675 39.753901 6744.4547 98001693. 0.035637125 0.078145133 -24.823583 39.651677 6746.4587 94014832. 0.033219035 0.073654437 -24.886955 39.547945 6748.4627 89166685. 0.031302074 0.069450975 -24.954358 39.431112 6750.4666 85399153. 0.028784463 0.072800916 -25.021762 39.314280 6752.4706 81427322. 0.026280230 0.073589912 -25.089164 39.197449 6754.4746 78279232. 0.025182134 0.075450321 -25.156567 39.080619 6756.4785 76224666. 0.022926948 0.075398225 -25.223970 38.963786 6758.4825 73010557. 0.023273390 0.074725614 -25.291373 38.846953 6760.4865 64271980. 0.023744814 0.076988923 -25.358776 38.730121 6762.4904 58680817. 0.028071625 0.077259752 -25.426178 38.613291 6764.4944 54874291. 0.030463225 0.079506970 -25.491883 38.499403 6766.4984 55301938. 0.030860943 0.080841036 -25.550859 38.397177 6768.5023 53482585. 0.026207329 0.082663496 -25.609835 38.294951 6770.5063 48946676. 0.019166967 0.088107670 -25.671399 38.183113 6772.5103 46934709. -0.0013560350 0.092968169 -25.734309 38.066283 6774.5142 47862406. 0.0086603817 0.097828668 -25.799163 37.949452 6776.5182 53818344. 0.031411778 0.10268917 -25.866565 37.832622