# # 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 = 51.653446 km # Date (UTC) = 2011-12-01T09:32:33.596 # Date (julian) = 2455896.89761106 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6497.9802 2.6905774e+11 0.042751067 0.031674152 -25.083721 52.587827 6500.1203 2.3326490e+11 0.050367889 0.032319499 -25.205507 52.482840 6502.2605 2.0046938e+11 0.058010477 0.032964846 -25.327287 52.377857 6504.4006 1.7113656e+11 0.065715501 0.033610193 -25.449054 52.272885 6506.5407 1.4544604e+11 0.073529802 0.034255540 -25.570821 52.167913 6508.6808 1.2437621e+11 0.081576187 0.034900887 -25.688706 52.066823 6510.8209 1.0637024e+11 0.089885137 0.035546234 -25.806275 51.966049 6512.9611 9.1131048e+10 0.098513917 0.036191581 -25.923843 51.862996 6515.1012 7.8701502e+10 0.10760828 0.036836928 -26.041410 51.758024 6517.2413 6.8496529e+10 0.11725706 0.037482275 -26.156869 51.654936 6519.3814 6.0692873e+10 0.12769175 0.038127622 -26.261373 51.561629 6521.5215 5.4776336e+10 0.13903819 0.038772969 -26.365877 51.468322 6523.6616 4.9941256e+10 0.14634662 0.039343100 -26.474655 51.371416 6525.8018 4.5554769e+10 0.15203376 0.039690711 -26.588025 51.270644 6527.9419 4.1378640e+10 0.15835619 0.041400288 -26.700973 51.169450 6530.0820 3.7431698e+10 0.16379309 0.043943493 -26.810144 51.064478 6532.2221 3.4033046e+10 0.16817592 0.046869746 -26.919315 50.959506 6534.3622 3.1019915e+10 0.17096106 0.048045888 -27.031503 50.854534 6536.5024 2.8361493e+10 0.17214790 0.048239969 -27.144872 50.749563 6538.6425 2.5930662e+10 0.17296719 0.049469530 -27.256831 50.644586 6540.7826 2.3743564e+10 0.17214097 0.051223818 -27.366018 50.539598 6542.9227 2.1767503e+10 0.17017908 0.051352549 -27.475205 50.434610 6545.0628 2.0013804e+10 0.16863384 0.052456130 -27.584377 50.329638 6547.2029 1.8433121e+10 0.16668691 0.053364540 -27.693547 50.224666 6549.3431 1.6995712e+10 0.16481510 0.054315887 -27.800306 50.119694 6551.4832 1.5727076e+10 0.16348156 0.055405354 -27.905278 50.014722 6553.6233 1.4541342e+10 0.16193077 0.055021744 -28.010250 49.909750 6555.7634 1.3444386e+10 0.16024209 0.054211913 -28.115221 49.804779 6557.9035 1.2460945e+10 0.15889531 0.053299770 -28.220193 49.699807 6560.0437 1.1643556e+10 0.15703742 0.052234951 -28.315701 49.604299 6562.1838 1.0985504e+10 0.15470026 0.050705039 -28.409008 49.510992 6564.3239 1.0411638e+10 0.15228726 0.048624811 -28.503300 49.416146 6566.4640 9.8324884e+09 0.15053378 0.046920397 -28.604073 49.311174 6568.6041 9.2614706e+09 0.14904930 0.045216328 -28.704846 49.206202 6570.7442 8.6892319e+09 0.14779996 0.044609219 -28.805618 49.101231 6572.8844 8.1486903e+09 0.14624944 0.043723706 -28.906391 48.996259 6575.0245 7.6357255e+09 0.14427331 0.042350148 -29.007169 48.891281 6577.1646 7.1733315e+09 0.14178510 0.039961831 -29.107958 48.786294 6579.3047 6.7643105e+09 0.13877943 0.036902983 -29.208746 48.681306 6581.4448 6.3773493e+09 0.13605552 0.035461908 -29.309519 48.576334 6583.5850 6.0136238e+09 0.13361461 0.034725591 -29.410293 48.471362 6585.7251 5.6812541e+09 0.13131497 0.033391097 -29.508522 48.366390 6587.8652 5.3683593e+09 0.12986547 0.033350062 -29.605096 48.261418 6590.0053 5.0704411e+09 0.12823680 0.031052201 -29.701670 48.156447 6592.1454 4.7734375e+09 0.12616020 0.027932277 -29.798243 48.051475 6594.2855 4.4873068e+09 0.12424571 0.026015776 -29.894817 47.946503 6596.4257 4.2491324e+09 0.12190924 0.025725339 -29.982347 47.851362 6598.5658 4.0544812e+09 0.12024422 0.025137043 -30.068189 47.758056 6600.7059 3.8860212e+09 0.12003088 0.026441065 -30.155099 47.662842 6602.8460 3.7173626e+09 0.11920879 0.026794680 -30.247474 47.557870 6604.9861 3.5348563e+09 0.11847278 0.026656808 -30.339850 47.452899 6607.1262 3.3526320e+09 0.11720812 0.025457700 -30.432225 47.347927 6609.2664 3.1869625e+09 0.11417491 0.023785055 -30.524600 47.242955 6611.4065 3.0298107e+09 0.11140809 0.024699238 -30.616975 47.136302 6613.5466 2.8847747e+09 0.11029221 0.023774140 -30.709350 47.027130 6615.6867 2.7452407e+09 0.10867475 0.023272660 -30.801725 46.918038 6617.8268 2.6146901e+09 0.10763566 0.023713385 -30.894115 46.813050 6619.9670 2.4890101e+09 0.10668838 0.024759225 -30.986504 46.708062 6622.1071 2.3736577e+09 0.10505938 0.024729492 -31.076208 46.603085 6624.2472 2.2592611e+09 0.10285874 0.024994631 -31.164384 46.498113 6626.3873 2.1495650e+09 0.10101550 0.026097432 -31.252560 46.393141 6628.5274 2.0452397e+09 0.099048769 0.025917237 -31.340737 46.288169 6630.6675 1.9432745e+09 0.096991553 0.025929947 -31.428913 46.183197 6632.8077 1.8528317e+09 0.095236804 0.026129191 -31.517089 46.078226 6634.9478 1.7650093e+09 0.093710164 0.026395979 -31.605265 45.973254 6637.0879 1.6757966e+09 0.092342280 0.026118360 -31.693442 45.868282 6639.2280 1.5876902e+09 0.091697119 0.025546575 -31.781619 45.763310 6641.3681 1.5071758e+09 0.092421303 0.025149551 -31.868293 45.659219 6643.5083 1.4374864e+09 0.091827125 0.025269359 -31.942938 45.562180 6645.6484 1.3836339e+09 0.090816345 0.025755424 -32.017584 45.465142 6647.7885 1.3364547e+09 0.089719212 0.026852925 -32.096258 45.364679 6649.9286 1.2885883e+09 0.088838375 0.026353644 -32.180234 45.259707 6652.0687 1.2363265e+09 0.088196573 0.027269431 -32.264211 45.154734 6654.2088 1.1847099e+09 0.087345274 0.027947255 -32.348201 45.049747 6656.3490 1.1337914e+09 0.085431101 0.028329702 -32.432191 44.944760 6658.4891 1.0887526e+09 0.083784146 0.030928477 -32.516173 44.839783 6660.6292 1.0454121e+09 0.082231920 0.032197911 -32.600151 44.734811 6662.7693 1.0000039e+09 0.080801601 0.032612638 -32.682922 44.629839 6664.9094 9.5720969e+08 0.079885917 0.028878496 -32.762700 44.524867 6667.0496 9.1560914e+08 0.079290151 0.027121660 -32.842479 44.419894 6669.1897 8.7568016e+08 0.077916755 0.028160895 -32.926060 44.311120 6671.3298 8.3849492e+08 0.077725442 0.026870048 -33.010038 44.201950 6673.4699 8.0118753e+08 0.076925921 0.028162001 -33.091815 44.094981 6675.6100 7.7094463e+08 0.074664263 0.030966784 -33.171595 43.990009 6677.7501 7.4060608e+08 0.073001960 0.031291808 -33.250775 43.885038 6679.8903 7.1259434e+08 0.072862477 0.029532097 -33.326354 43.780066 6682.0304 6.8232004e+08 0.073552503 0.030447756 -33.401932 43.675094 6684.1705 6.5001392e+08 0.073798076 0.032662744 -33.480707 43.570122 6686.3106 6.2330241e+08 0.073036555 0.033941806 -33.560487 43.465150 6688.4507 5.9349500e+08 0.070517667 0.033889236 -33.638674 43.358584 6690.5909 5.7023588e+08 0.069120711 0.033048151 -33.714254 43.249413 6692.7310 5.4581231e+08 0.068285972 0.031916495 -33.789833 43.140241 6694.8711 5.2576193e+08 0.067659595 0.030040148 -33.869602 43.035260 6697.0112 5.0749576e+08 0.067148597 0.030092684 -33.949380 42.930289 6699.1513 4.8805523e+08 0.065838414 0.031450801 -34.033225 42.816075 6701.2914 4.6693445e+08 0.064073697 0.031837078 -34.119604 42.696105 6703.4316 4.4066997e+08 0.064052298 0.034755141 -34.200234 42.584119 6705.5717 4.1790966e+08 0.064151524 0.037684939 -34.275814 42.479147 6707.7118 3.9695525e+08 0.063826229 0.040084862 -34.350762 42.374173 6709.8519 3.8128617e+08 0.062788733 0.040590683 -34.422153 42.269185 6711.9920 3.6875803e+08 0.060633633 0.041820896 -34.493544 42.164197 6714.1322 3.5503125e+08 0.058490864 0.047313344 -34.568158 42.055991 6716.2723 3.4197452e+08 0.056705888 0.048802390 -34.643738 41.946821 6718.4124 3.2853041e+08 0.054466194 0.050454678 -34.717689 41.839280 6720.5525 3.1515919e+08 0.054023410 0.050355749 -34.789071 41.734308 6722.6926 3.0397870e+08 0.053362323 0.049748939 -34.860452 41.629337 6724.8327 2.9363963e+08 0.049460091 0.042972722 -34.931832 41.524365 6726.9729 2.8391650e+08 0.047405350 0.040960142 -35.003212 41.419393 6729.1130 2.7154007e+08 0.047114796 0.040970124 -35.080965 41.305051 6731.2531 2.6083824e+08 0.045403278 0.042253735 -35.162546 41.185081 6733.3932 2.4923379e+08 0.044367711 0.046059188 -35.238609 41.073223 6735.5333 2.3892142e+08 0.045279857 0.049859605 -35.309990 40.968251 6737.6735 2.3011507e+08 0.046802278 0.056280862 -35.380701 40.862609 6739.8136 2.2105563e+08 0.046938434 0.063822206 -35.447883 40.753438 6741.9537 2.1283907e+08 0.044960532 0.068478665 -35.515065 40.644267 6744.0938 2.0618574e+08 0.040332944 0.077865968 -35.585513 40.538361 6746.2339 1.9925334e+08 0.038501814 0.076267653 -35.656895 40.433390 6748.3740 1.9510445e+08 0.035427287 0.068984747 -35.730415 40.322477 6750.5142 1.8983964e+08 0.032695404 0.072882080 -35.807196 40.202507 6752.6543 1.7807507e+08 0.030007777 0.073377355 -35.880979 40.087220 6754.7944 1.7111041e+08 0.028472699 0.074935983 -35.948162 39.982247 6756.9345 1.6129403e+08 0.025788719 0.076571552 -36.015344 39.877275 6759.0746 1.5438222e+08 0.026780616 0.075837964 -36.091459 39.758344 6761.2148 1.5137115e+08 0.027821132 0.077985967 -36.168240 39.638374 6763.3549 1.4182983e+08 0.032726374 0.077518523 -36.236892 39.531105 6765.4950 1.3703836e+08 0.034898724 0.079621555 -36.304074 39.426134 6767.6351 1.3105223e+08 0.033214955 0.081264613 -36.373489 39.311952 6769.7752 1.2427194e+08 0.028585430 0.086334516 -36.445472 39.187183 6771.9153 1.2002053e+08 0.024746053 0.091525244 -36.515628 39.069959 6774.0555 1.1183226e+08 0.020930892 0.096715971 -36.582820 38.964972 6776.1956 1.0930672e+08 0.017141992 0.10190670 -36.650012 38.859982 6778.3357 1.0382379e+08 0.013383834 0.10709743 -36.721993 38.740012 6780.4758 1.0037673e+08 0.0096479104 0.11228815 -36.793975 38.620042 6782.6159 97560041. 0.0059162260 0.11747888 -36.857712 38.513814 6784.7560 94129547. 0.0021841287 0.12266961 -36.920696 38.408842 6786.8962 93340601. -0.0015398260 0.12786033 -36.991057 38.295850 6789.0363 90782682. -0.0052698500 0.13305106 -37.067838 38.175880 6791.1764 88179619. -0.0090030306 0.13824179 -37.136505 38.062672 6793.3165 84284140. -0.012744185 0.14343252 -37.195288 37.957700 6795.4566 79916754. -0.016494366 0.14862324 -37.254987 37.851690 6797.5968 74672929. -0.020264708 0.15381397 -37.326970 37.731719 6799.7369 72760178. -0.024047281 0.15900470 -37.398952 37.611749 6801.8770 70082227. -0.027869084 0.16419542 -37.470933 37.491779 6804.0171 67466492. -0.031753457 0.16938615 -37.542915 37.371809 6806.1572 62870086. -0.035777529 0.17457688 -37.602998 37.265360 6808.2973 57100117. -0.040062170 0.17976761 -37.661782 37.160388 6810.4375 56139892. -0.045112168 0.18495833 -37.727429 37.045121 6812.5776 53768289. -0.056522714 0.19014906 -37.799412 36.920351 6814.7177 53708341. -0.053932391 0.19533979 -37.869302 36.797674 6816.8578 53474871. -0.044457674 0.20053052 -37.936485 36.677704