# # 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 = 51.227840 km # Date (UTC) = 2015-12-08T09:35:09.480 # Date (julian) = 2457364.89941528 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6495.8143 8.3772309e+10 0.025467349 0.031021015 112.73093 26.382690 6497.7758 7.7439588e+10 0.032225058 0.031612519 112.77540 26.290326 6499.7374 7.1110528e+10 0.039198271 0.032204024 112.81757 26.195664 6501.6990 6.5559253e+10 0.046553606 0.032795529 112.85863 26.099880 6503.6605 6.0901012e+10 0.054431146 0.033387034 112.89968 26.004095 6505.6221 5.6716761e+10 0.062838835 0.033978538 112.94745 25.899348 6507.5837 5.2286263e+10 0.071599584 0.034570043 112.99748 25.791588 6509.5452 4.8220840e+10 0.080903347 0.035161548 113.04616 25.686140 6511.5068 4.4445576e+10 0.090753899 0.035753052 113.08721 25.593776 6513.4684 4.1293578e+10 0.10128091 0.036344557 113.12826 25.501412 6515.4299 3.8599779e+10 0.11246166 0.036936062 113.17009 25.408269 6517.3915 3.6107478e+10 0.12417979 0.037527567 113.21457 25.312471 6519.3531 3.3781512e+10 0.13636631 0.038119071 113.25905 25.216674 6521.3146 3.1547761e+10 0.14890468 0.038710576 113.30248 25.121920 6523.2762 2.9428514e+10 0.15806916 0.039247564 113.34353 25.029556 6525.2377 2.7360573e+10 0.16561381 0.039755081 113.38458 24.937192 6527.1993 2.5437982e+10 0.17176838 0.040861174 113.42563 24.843526 6529.1609 2.3613445e+10 0.17591581 0.042492050 113.46668 24.747741 6531.1224 2.1898024e+10 0.17900413 0.045406897 113.50773 24.651957 6533.0840 2.0368909e+10 0.18170223 0.047555288 113.54878 24.557738 6535.0456 1.8999928e+10 0.18176774 0.048204527 113.58983 24.465374 6537.0071 1.7769575e+10 0.18040114 0.048688592 113.63089 24.373010 6538.9687 1.6561569e+10 0.17858348 0.049628389 113.67468 24.272411 6540.9303 1.5292373e+10 0.17693468 0.051293585 113.72087 24.164635 6542.8918 1.4047649e+10 0.17508766 0.051340828 113.76706 24.056859 6544.8534 1.2894350e+10 0.17344241 0.052336641 113.80844 23.963515 6546.8150 1.1935544e+10 0.17132734 0.053135110 113.84949 23.871151 6548.7765 1.1165807e+10 0.16915250 0.053899544 113.89054 23.778788 6550.7381 1.0455582e+10 0.16756100 0.055170172 113.93159 23.686424 6552.6997 9.8165156e+09 0.16615573 0.055410663 113.97264 23.594060 6554.6612 9.1881280e+09 0.16411271 0.054846256 114.01339 23.501388 6556.6228 8.6112295e+09 0.16180658 0.053921564 114.05102 23.405604 6558.5844 8.0733323e+09 0.15936566 0.052741363 114.08865 23.309819 6560.5459 7.5621853e+09 0.15674849 0.051782093 114.12685 23.214602 6562.5075 7.1018962e+09 0.15414636 0.050397014 114.16790 23.122226 6564.4690 6.6674072e+09 0.15127480 0.048559025 114.20895 23.029849 6566.4306 6.2776723e+09 0.14870010 0.046939287 114.24917 22.937476 6568.3922 5.9300942e+09 0.14647064 0.045411157 114.28680 22.845113 6570.3537 5.6164201e+09 0.14439607 0.044770976 114.32443 22.752750 6572.3153 5.3206100e+09 0.14189837 0.044049587 114.36481 22.655450 6574.2769 5.0219716e+09 0.13886336 0.042722024 114.41099 22.547690 6576.2384 4.7090669e+09 0.13625261 0.041096946 114.45717 22.439930 6578.2000 4.4092851e+09 0.13388893 0.038333786 114.49718 22.343290 6580.1616 4.1387830e+09 0.13184710 0.036371440 114.53481 22.250926 6582.1231 3.9052575e+09 0.12997165 0.035260287 114.57244 22.158562 6584.0847 3.6990134e+09 0.12802466 0.034469373 114.61280 22.066199 6586.0463 3.5121838e+09 0.12622779 0.033170698 114.65385 21.973836 6588.0078 3.3330320e+09 0.12501622 0.033377317 114.69490 21.881472 6589.9694 3.1731731e+09 0.12313290 0.031122789 114.73296 21.789098 6591.9310 3.0163562e+09 0.12080308 0.028151432 114.77059 21.696721 6593.8925 2.8654091e+09 0.11862371 0.026272445 114.80823 21.604345 6595.8541 2.7326762e+09 0.11606714 0.025712142 114.84586 21.511981 6597.8157 2.6101971e+09 0.11415348 0.025465338 114.88349 21.419617 6599.7772 2.5016728e+09 0.11302359 0.024976476 114.92126 21.326909 6601.7388 2.3778128e+09 0.11248251 0.027393615 114.96359 21.222998 6603.7003 2.2517601e+09 0.11104174 0.026248669 115.00593 21.119087 6605.6619 2.1185310e+09 0.11058586 0.027220336 115.04623 21.020157 6607.6235 2.0024969e+09 0.10872900 0.024475860 115.08386 20.927794 6609.5850 1.9072137e+09 0.10573970 0.023879717 115.12149 20.835430 6611.5466 1.8186093e+09 0.10302248 0.024609881 115.15912 20.743061 6613.5082 1.7509434e+09 0.10175560 0.023760040 115.19676 20.650684 6615.4697 1.6725657e+09 0.10014651 0.023265984 115.23439 20.558308 6617.4313 1.5991498e+09 0.098890218 0.023582246 115.27202 20.465939 6619.3929 1.5383441e+09 0.098031973 0.024620707 115.30965 20.373576 6621.3544 1.4743220e+09 0.097186556 0.024971968 115.34728 20.281212 6623.3160 1.4158793e+09 0.095904921 0.024608898 115.38803 20.181203 6625.2776 1.3472123e+09 0.095037757 0.025728821 115.43036 20.077291 6627.2391 1.2706639e+09 0.093500466 0.025409182 115.47240 19.974115 6629.2007 1.2056367e+09 0.092784127 0.026072819 115.51003 19.881752 6631.1623 1.1506845e+09 0.091431159 0.025947248 115.54766 19.789388 6633.1238 1.1042821e+09 0.090432119 0.026173871 115.58481 19.697024 6635.0854 1.0628143e+09 0.089236572 0.026412593 115.61902 19.604661 6637.0470 1.0209396e+09 0.087955725 0.026138415 115.65322 19.512298 6639.0085 9.7870744e+08 0.087039495 0.025625030 115.68920 19.418259 6640.9701 9.3905263e+08 0.087777228 0.025151961 115.73154 19.318181 6642.9316 9.0041939e+08 0.087473668 0.025189821 115.77388 19.218103 6644.8932 8.5831276e+08 0.086613059 0.025440143 115.81330 19.122802 6646.8548 8.1776483e+08 0.085569161 0.026362608 115.85093 19.030438 6648.8163 7.8343756e+08 0.084474681 0.027510747 115.88856 18.938074 6650.7779 7.4888887e+08 0.084121704 0.026433322 115.92381 18.845710 6652.7395 7.2344465e+08 0.083664858 0.027453980 115.95802 18.753346 6654.7010 7.0164678e+08 0.082543878 0.027737577 115.99223 18.660983 6656.6626 6.7280647e+08 0.080729388 0.028604981 116.03272 18.559695 6658.6242 6.4683300e+08 0.079251686 0.031168054 116.07505 18.455785 6660.5857 6.1516462e+08 0.078033106 0.032158401 116.11597 18.354486 6662.5473 5.8698416e+08 0.076892201 0.032737205 116.15018 18.265542 6664.5089 5.6610473e+08 0.076062818 0.030344179 116.18438 18.176599 6666.4704 5.4654094e+08 0.076106877 0.027000264 116.21967 18.083891 6668.4320 5.2834088e+08 0.075368766 0.027853058 116.25816 17.979965 6670.3936 5.0630641e+08 0.075312735 0.027146303 116.29665 17.876038 6672.3551 4.8220531e+08 0.075231478 0.027085435 116.33458 17.781900 6674.3167 4.6134131e+08 0.074425908 0.029221938 116.37221 17.692957 6676.2783 4.4661655e+08 0.072405376 0.031893057 116.40984 17.604014 6678.2398 4.3177293e+08 0.071663238 0.030776213 116.44809 17.504144 6680.2014 4.1330489e+08 0.072109051 0.029484903 116.48658 17.400233 6682.1629 3.9502651e+08 0.072820959 0.030549041 116.52450 17.297842 6684.1245 3.7991554e+08 0.072978778 0.032660410 116.55871 17.205478 6686.0861 3.6978672e+08 0.072338654 0.033811166 116.59292 17.113115 6688.0476 3.5689671e+08 0.070058043 0.033796188 116.62802 17.019146 6690.0092 3.4111452e+08 0.068276645 0.033114809 116.66651 16.919084 6691.9708 3.2359209e+08 0.067286721 0.032772224 116.70499 16.819022 6693.9323 3.1045700e+08 0.066335316 0.031284239 116.74087 16.725735 6695.8939 2.9988547e+08 0.066136609 0.029695274 116.77508 16.636781 6697.8555 2.8770545e+08 0.065326199 0.030199526 116.80930 16.547826 6699.8170 2.7930182e+08 0.063739096 0.030836544 116.84645 16.448593 6701.7786 2.6773893e+08 0.061956217 0.032551871 116.88493 16.344682 6703.7402 2.5685172e+08 0.062002953 0.035527359 116.92342 16.241113 6705.7017 2.4602361e+08 0.061905317 0.037916137 116.96190 16.141051 6707.6633 2.3196218e+08 0.061491541 0.040091810 117.00039 16.040988 6709.6249 2.2351273e+08 0.060498307 0.040735103 117.03677 15.944701 6711.5864 2.1448949e+08 0.058581883 0.041359421 117.07099 15.852337 6713.5480 2.0631406e+08 0.056568203 0.045668579 117.10520 15.759973 6715.5096 1.9904507e+08 0.054762347 0.047899745 117.14183 15.663243 6717.4711 1.9057139e+08 0.052709357 0.049845128 117.18032 15.563180 6719.4327 1.8240400e+08 0.050823431 0.050958758 117.21880 15.463118 6721.3942 1.7601943e+08 0.050948364 0.050422688 117.25729 15.363056 6723.3558 1.6811886e+08 0.049443163 0.049567387 117.29577 15.262993 6725.3174 1.5743891e+08 0.045258290 0.041377769 117.33141 15.167046 6727.2789 1.4619864e+08 0.043702557 0.040588754 117.36220 15.078091 6729.2405 1.3928927e+08 0.042959671 0.040885123 117.39299 14.989136 6731.2021 1.3864858e+08 0.041125014 0.042152188 117.42723 14.893487 6733.1636 1.4218090e+08 0.039981076 0.044812745 117.46572 14.789575 6735.1252 1.4120941e+08 0.040110616 0.049426345 117.50420 14.685664 6737.0868 1.3608998e+08 0.041389840 0.054411967 117.54269 14.585022 6739.0483 1.3366000e+08 0.041842450 0.062885702 117.58117 14.484959 6741.0099 1.2906476e+08 0.040564886 0.065786920 117.61869 14.384897 6742.9715 1.2678180e+08 0.037183759 0.070977904 117.65333 14.284834 6744.9330 1.2106300e+08 0.033777837 0.078515085 117.68796 14.184772 6746.8946 1.1699229e+08 0.029397950 0.068586635 117.72511 14.084710 6748.8562 1.1321220e+08 0.029026442 0.071521176 117.76360 13.984648 6750.8177 1.0864040e+08 0.026100347 0.073400426 117.80209 13.884586 6752.7793 1.0207565e+08 0.023198929 0.073232695 117.84057 13.784523 6754.7409 98344500. 0.021671001 0.075022087 117.87906 13.684461 6756.7024 95349195. 0.019184028 0.075974334 117.91579 13.584398 6758.6640 93656672. 0.019800031 0.075109402 117.95042 13.484335 6760.6255 89922604. 0.020152414 0.077254162 117.98506 13.384272 6762.5871 85021999. 0.024540898 0.077103784 118.01970 13.284210 6764.5487 81059665. 0.026956807 0.079509571 118.05433 13.184147 6766.5102 78034498. 0.027639254 0.080867926 118.08997 13.084085 6768.4718 76266414. 0.024102388 0.082553701 118.12845 12.984023 6770.4334 71546907. 0.019928004 0.087930820 118.16694 12.883961 6772.3949 68977978. 0.016275430 0.092688478 118.20288 12.783889 6774.3565 67166624. 0.012636404 0.097446135 118.23752 12.683812 6776.3181 65588518. 0.0089456407 0.10220379 118.27241 12.583735 6778.2796 61406570. 0.0048025899 0.10696145 118.31089 12.483673 6780.2412 59240065. 0.00071630740 0.11171911 118.34938 12.383610 6782.2028 54517217. -0.0041064526 0.11647677 118.38608 12.283548 6784.1643 55141926. -0.0083531584 0.12123442 118.42072 12.183485 6786.1259 57365232. -0.012760786 0.12599208 118.45535 12.083422 6788.0875 56908967. -0.018600110 0.13074974 118.48999 11.983359 6790.0490 56434071. -0.026163331 0.13550740 118.52463 11.883297 6792.0106 51491208. -0.040918695 0.14026505 118.55927 11.783235 6793.9722 49708011. -0.10226727 0.14502271 118.59390 11.683173 6795.9337 47747384. -0.060182349 0.14978037 118.62854 11.583111 6797.8953 46914774. 0.041202364 0.15453803 118.66943 11.476425