# # 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 = 56.614195 km # Date (UTC) = 2011-11-15T09:55:29.550 # Date (julian) = 2455880.91353646 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6484.5744 3.8380841e+11 0.021188264 0.027631648 -17.674957 65.115641 6486.8309 3.1558893e+11 0.028818672 0.028312114 -18.017426 64.985998 6489.0875 2.5997966e+11 0.036344483 0.028992580 -18.399984 64.837226 6491.3441 2.1451795e+11 0.043699186 0.029673046 -18.725619 64.703891 6493.6007 1.8098019e+11 0.050545783 0.030353512 -19.038503 64.574741 6495.8573 1.5749658e+11 0.056717840 0.031033978 -19.351386 64.450769 6498.1138 1.3830121e+11 0.062435259 0.031714443 -19.659177 64.324276 6500.3704 1.2241461e+11 0.067703951 0.032394909 -19.960193 64.194430 6502.6270 1.0875518e+11 0.072530440 0.033075375 -20.261253 64.064559 6504.8836 9.6535182e+10 0.076811705 0.033755841 -20.561844 63.934681 6507.1402 8.5740843e+10 0.080500509 0.034436307 -20.851115 63.804806 6509.3967 7.6448811e+10 0.083868946 0.035116773 -21.140385 63.672882 6511.6533 6.8493184e+10 0.087660646 0.035797239 -21.429654 63.537103 6513.9099 6.1512612e+10 0.092939978 0.036477705 -21.715067 63.405179 6516.1665 5.5065098e+10 0.10062866 0.037158170 -21.998433 63.275302 6518.4231 4.9461593e+10 0.11175289 0.037838636 -22.276136 63.139764 6520.6796 4.4429457e+10 0.12665875 0.038519102 -22.553584 63.003992 6522.9362 4.0088280e+10 0.14296416 0.039162413 -22.830992 62.868240 6525.1928 3.6388946e+10 0.15673657 0.039760210 -23.080015 62.746438 6527.4494 3.3317751e+10 0.16686461 0.041042733 -23.307713 62.635118 6529.7060 3.0796470e+10 0.17269267 0.043360332 -23.557985 62.505741 6531.9626 2.8415156e+10 0.17476353 0.046629683 -23.823640 62.364057 6534.2191 2.6067261e+10 0.17436802 0.048005857 -24.083978 62.227692 6536.4757 2.3868685e+10 0.17307035 0.048216133 -24.342509 62.091913 6538.7323 2.1892699e+10 0.17235018 0.049513269 -24.596356 61.956134 6540.9889 2.0032359e+10 0.17077531 0.051321271 -24.847176 61.820355 6543.2455 1.8405752e+10 0.16910863 0.051446314 -25.095122 61.684575 6545.5020 1.7114212e+10 0.16746562 0.052460065 -25.314053 61.560540 6547.7586 1.6064299e+10 0.16621887 0.053575852 -25.526571 61.439100 6550.0152 1.5107804e+10 0.16522499 0.054989164 -25.763968 61.300603 6552.2718 1.4058225e+10 0.16379456 0.055518361 -26.005124 61.159804 6554.5284 1.2944924e+10 0.16214484 0.054843468 -26.241217 61.024051 6556.7849 1.2003664e+10 0.16056692 0.053897725 -26.461995 60.894804 6559.0415 1.1246739e+10 0.15832840 0.052382495 -26.664393 60.773364 6561.2981 1.0578075e+10 0.15602765 0.051225785 -26.880103 60.642244 6563.5547 9.9315720e+09 0.15367772 0.049286732 -27.110338 60.500562 6565.8113 9.2250707e+09 0.15147710 0.047397202 -27.335943 60.358879 6568.0678 8.5847740e+09 0.14990335 0.045709301 -27.557378 60.219025 6570.3244 8.0853175e+09 0.14806789 0.044783123 -27.749655 60.097587 6572.5810 7.6620122e+09 0.14566773 0.043897432 -27.944916 59.973167 6574.8376 7.2600819e+09 0.14289408 0.042452717 -28.163344 59.825580 6577.0942 6.8586668e+09 0.14008241 0.040072467 -28.368660 59.688979 6579.3507 6.4610449e+09 0.13725216 0.036877679 -28.555878 59.567539 6581.6073 6.0863765e+09 0.13531115 0.035412703 -28.754328 59.437114 6583.8639 5.7295961e+09 0.13357291 0.034584397 -28.966853 59.295430 6586.1205 5.4032961e+09 0.13187859 0.033169739 -29.152811 59.165134 6588.3771 5.1236115e+09 0.13054747 0.033254009 -29.329910 59.038634 6590.6336 4.8509220e+09 0.12843307 0.029883388 -29.529816 58.900412 6592.8902 4.5759880e+09 0.12643663 0.027208845 -29.733653 58.759961 6595.1468 4.3199230e+09 0.12414238 0.025638795 -29.905691 58.633462 6597.4034 4.0990709e+09 0.12173576 0.025595434 -30.080077 58.504790 6599.6600 3.8985602e+09 0.12047876 0.024969424 -30.274892 58.357203 6601.9165 3.6983324e+09 0.12008417 0.027477332 -30.458317 58.220314 6604.1731 3.5077195e+09 0.11854426 0.026174075 -30.625296 58.098875 6606.4297 3.3283901e+09 0.11781182 0.026731790 -30.804322 57.966118 6608.6863 3.1560725e+09 0.11480711 0.023714226 -30.999136 57.818531 6610.9429 2.9923255e+09 0.11140242 0.024903870 -31.169644 57.686527 6613.1995 2.8412305e+09 0.10997562 0.023646769 -31.331564 57.560027 6615.4560 2.6936180e+09 0.10819187 0.023265562 -31.509565 57.417447 6617.7126 2.5476217e+09 0.10681971 0.023675513 -31.690775 57.271309 6619.9692 2.4022231e+09 0.10574711 0.024759764 -31.847634 57.144810 6622.2258 2.2849253e+09 0.10381486 0.024697899 -32.004492 57.018312 6624.4824 2.1992867e+09 0.10135823 0.025120511 -32.161351 56.891812 6626.7389 2.1126818e+09 0.099097297 0.025649432 -32.320560 56.762865 6628.9955 2.0206447e+09 0.097652206 0.026107284 -32.497663 56.615279 6631.2521 1.9187903e+09 0.096094940 0.025956374 -32.664084 56.476595 6633.5087 1.8268216e+09 0.094904972 0.026241063 -32.815884 56.350096 6635.7653 1.7410540e+09 0.093521538 0.026514549 -32.976318 56.214208 6638.0218 1.6582854e+09 0.092579398 0.025670691 -33.147482 56.066652 6640.2784 1.5752925e+09 0.092663710 0.025236587 -33.296486 55.931119 6642.5350 1.4994846e+09 0.092648708 0.025173589 -33.438167 55.799560 6644.7916 1.4428646e+09 0.091583082 0.025429159 -33.583768 55.671924 6647.0482 1.3893335e+09 0.090291660 0.026463136 -33.730506 55.545425 6649.3047 1.3297574e+09 0.089109859 0.027213619 -33.892073 55.402078 6651.5613 1.2660760e+09 0.088640312 0.026914336 -34.054357 55.256176 6653.8179 1.2034013e+09 0.087956853 0.027943252 -34.190976 55.124616 6656.0745 1.1509821e+09 0.086010058 0.028088790 -34.327595 54.993708 6658.3311 1.1096372e+09 0.084236986 0.030648224 -34.464214 54.867209 6660.5876 1.0697365e+09 0.082502908 0.032160136 -34.604306 54.736594 6662.8442 1.0287221e+09 0.080934952 0.032570612 -34.763698 54.583104 6665.1008 9.7913820e+08 0.080077589 0.028381960 -34.910328 54.441992 6667.3574 9.3341943e+08 0.079341921 0.027234731 -35.041887 54.315493 6669.6140 8.9401322e+08 0.078163749 0.027725118 -35.173446 54.186554 6671.8705 8.6384234e+08 0.077671620 0.026877754 -35.305004 54.054996 6674.1271 8.3181016e+08 0.076476444 0.029062030 -35.444672 53.915329 6676.3837 7.9668360e+08 0.073949941 0.031961021 -35.592258 53.767742 6678.6403 7.5932555e+08 0.073005468 0.030508362 -35.722721 53.633170 6680.8969 7.2217341e+08 0.073934704 0.029635088 -35.849219 53.501610 6683.1534 6.9752436e+08 0.074623158 0.031413461 -35.975718 53.374280 6685.4100 6.6862786e+08 0.074411187 0.033137929 -36.102217 53.247781 6687.6666 6.3800327e+08 0.072376741 0.033971125 -36.241767 53.098086 6689.9232 6.0356445e+08 0.070343200 0.033185005 -36.380101 52.948226 6692.1798 5.7230917e+08 0.069396546 0.032556572 -36.501539 52.816666 6694.4364 5.5206420e+08 0.068606593 0.030649458 -36.622977 52.686063 6696.6929 5.3107342e+08 0.068300704 0.029963685 -36.744417 52.559565 6698.9495 5.1062156e+08 0.067052235 0.031521132 -36.870161 52.427326 6701.2061 4.8771193e+08 0.065235405 0.031711843 -37.011816 52.273868 6703.4627 4.6838582e+08 0.065110300 0.034832991 -37.140362 52.131767 6705.7193 4.5435024e+08 0.065100696 0.037947294 -37.256740 52.000207 6707.9758 4.4642393e+08 0.064624045 0.040047039 -37.370375 51.868648 6710.2324 4.2999678e+08 0.063260644 0.040541987 -37.481693 51.737089 6712.4890 4.0651289e+08 0.061097669 0.042737860 -37.606858 51.596458 6714.7456 3.7940372e+08 0.059047236 0.047359461 -37.742637 51.448872 6717.0022 3.6246012e+08 0.056896641 0.049874135 -37.857084 51.315263 6719.2587 3.5577612e+08 0.054560858 0.051124019 -37.968403 51.183703 6721.5153 3.4912495e+08 0.054726184 0.050459167 -38.096347 51.032498 6723.7719 3.3063418e+08 0.052896602 0.049799445 -38.221455 50.883438 6726.0285 3.0436968e+08 0.048891842 0.040951624 -38.327713 50.751880 6728.2851 2.8736964e+08 0.048177605 0.040032123 -38.433972 50.620321 6730.5416 2.7327953e+08 0.046635798 0.041121557 -38.540231 50.488761 6732.7982 2.6793223e+08 0.045230496 0.043887159 -38.650906 50.351734 6735.0548 2.5957198e+08 0.045272760 0.049351608 -38.774881 50.198245 6737.3114 2.5210082e+08 0.046923371 0.055127480 -38.889016 50.059745 6739.5680 2.4232148e+08 0.047220663 0.063521630 -38.995275 49.933246 6741.8245 2.3133213e+08 0.045226483 0.068110336 -39.111791 49.791117 6744.0811 2.2118657e+08 0.040334362 0.077856159 -39.235763 49.637626 6746.3377 2.0807442e+08 0.037940728 0.075061091 -39.339578 49.503549 6748.5943 2.0300219e+08 0.035170807 0.070143451 -39.440777 49.371991 6750.8509 1.9913020e+08 0.032217081 0.073457017 -39.541977 49.240432 6753.1074 1.9154774e+08 0.029273087 0.073325004 -39.643176 49.108872 6755.3640 1.8537430e+08 0.027062593 0.074445743 -39.754581 48.956889 6757.6206 1.7830029e+08 0.025224817 0.074856680 -39.864116 48.808649 6759.8772 1.7181172e+08 0.025918844 0.076031634 -39.965316 48.677091 6762.1338 1.6865233e+08 0.029634763 0.077835066 -40.069388 48.539787 6764.3903 1.6327595e+08 0.032563058 0.079501986 -40.181553 48.386296 6766.6469 1.5572744e+08 0.033176922 0.081177113 -40.284613 48.245265 6768.9035 1.5269142e+08 0.028488271 0.084107066 -40.380752 48.113707 6771.1601 1.4519596e+08 0.024172675 0.089693429 -40.482881 47.969170 6773.4167 1.4178970e+08 0.019990600 0.095166629 -40.589144 47.815679 6775.6733 1.3790470e+08 0.015836470 0.10063983 -40.686318 47.681880 6777.9298 1.3216995e+08 0.011683688 0.10611303 -40.782458 47.550322 6780.1864 1.2875258e+08 0.0076103136 0.11158623 -40.887927 47.398551 6782.4430 1.2393831e+08 0.0035222234 0.11705943 -40.990734 47.250052 6784.6996 1.1857327e+08 -0.00057351101 0.12253263 -41.081813 47.118494 6786.9562 1.1562695e+08 -0.0046003998 0.12800583 -41.176708 46.981424 6789.2127 1.1074674e+08 -0.0086773654 0.13347903 -41.282971 46.827933 6791.4693 1.0625778e+08 -0.012742517 0.13895223 -41.385930 46.674460 6793.7259 1.0407261e+08 -0.016725532 0.14442543 -41.486268 46.521002 6795.9825 98695115. -0.020828088 0.14989863 -41.578614 46.386447 6798.2391 96398515. -0.024815554 0.15537183 -41.669694 46.254889 6800.4956 91714232. -0.028913526 0.16084503 -41.769001 46.103880 6802.7522 86442306. -0.033067033 0.16631823 -41.866593 45.954620 6805.0088 83600913. -0.037129253 0.17179143 -41.952614 45.823061 6807.2654 82763675. -0.041111109 0.17726463 -42.040462 45.686751 6809.5220 80367732. -0.045220493 0.18273783 -42.134917 45.533261 6811.7785 78115368. -0.049386673 0.18821103 -42.232457 45.379771 6814.0351 75544041. -0.053670430 0.19368423 -42.332815 45.226282 6816.2917 70684500. -0.058290446 0.19915743 -42.428280 45.072792 6818.5483 68772663. -0.062895967 0.20463063 -42.521598 44.922258 6820.8049 66751000. -0.067859266 0.21010383 -42.607618 44.790700 6823.0614 64887946. -0.073398495 0.21557703 -42.694976 44.655665 6825.3180 64095749. -0.079885569 0.22105023 -42.789431 44.502174 6827.5746 58500603. -0.090818935 0.22652343 -42.881136 44.348698 6829.8312 54383427. -0.13327029 0.23199663 -42.969671 44.195239 6832.0878 51716148. -0.10724661 0.23746983 -43.062767 44.041757 6834.3443 51411431. -0.040541694 0.24294303 -43.156771 43.888268