# # 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 = 37.476787 km # Date (UTC) = 2010-12-02T10:06:12.847 # Date (julian) = 2455532.92098202 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6498.0115 2.1996243e+11 0.041109981 0.031683572 -35.494176 50.417522 6500.0885 1.8933325e+11 0.048788976 0.032309888 -35.600127 50.315646 6502.1655 1.5624329e+11 0.056432965 0.032936205 -35.706078 50.213770 6504.2425 1.2926164e+11 0.064079556 0.033562521 -35.815954 50.111893 6506.3195 1.0911405e+11 0.071895589 0.034188838 -35.925981 50.010017 6508.3965 9.3545874e+10 0.080005251 0.034815155 -36.026096 49.913903 6510.4735 8.2242016e+10 0.088685856 0.035441471 -36.116651 49.823348 6512.5505 7.3601563e+10 0.098039222 0.036067788 -36.207206 49.732793 6514.6275 6.6005180e+10 0.10797307 0.036694104 -36.309283 49.633766 6516.7045 5.9070875e+10 0.11847276 0.037320421 -36.415235 49.531889 6518.7816 5.2572189e+10 0.12948188 0.037946738 -36.519988 49.428814 6520.8586 4.6882222e+10 0.14110769 0.038573054 -36.621864 49.322863 6522.9356 4.1834862e+10 0.15071087 0.039162242 -36.723740 49.216913 6525.0126 3.7496607e+10 0.15825936 0.039780779 -36.825617 49.114386 6527.0896 3.3728976e+10 0.16412658 0.040781514 -36.927493 49.012509 6529.1666 3.0420531e+10 0.16876744 0.042501165 -37.027795 48.910633 6531.2436 2.7495755e+10 0.17326610 0.045583256 -37.125595 48.808757 6533.3206 2.4846767e+10 0.17732376 0.047655841 -37.223395 48.706880 6535.3976 2.2521475e+10 0.17849279 0.048051807 -37.321211 48.601189 6537.4746 2.0442305e+10 0.17882290 0.048908996 -37.419027 48.495221 6539.5516 1.8604162e+10 0.17792333 0.050311382 -37.516836 48.391212 6541.6287 1.6941664e+10 0.17557877 0.051122661 -37.614637 48.289335 6543.7057 1.5434477e+10 0.17325528 0.051567098 -37.712336 48.187459 6545.7827 1.4097635e+10 0.17107143 0.052462579 -37.806062 48.085583 6547.8597 1.2863591e+10 0.16968397 0.053614286 -37.899788 47.983706 6549.9367 1.1768265e+10 0.16822589 0.054920843 -37.995841 47.879504 6552.0137 1.0756768e+10 0.16645171 0.055583318 -38.093643 47.773553 6554.0907 9.8747221e+09 0.16402486 0.054834284 -38.189749 47.669403 6556.1677 9.1406225e+09 0.16186779 0.053988468 -38.273060 47.578848 6558.2447 8.5307043e+09 0.15982039 0.053030766 -38.356371 47.488293 6560.3217 8.0089669e+09 0.15704557 0.051984221 -38.441940 47.393705 6562.3987 7.4891573e+09 0.15404205 0.050500481 -38.531592 47.291828 6564.4758 6.9673410e+09 0.15090387 0.048555985 -38.621244 47.189951 6566.5528 6.4511684e+09 0.14818992 0.046870187 -38.714572 47.084397 6568.6298 5.9710297e+09 0.14563109 0.045192750 -38.808298 46.978445 6570.7068 5.5378844e+09 0.14326018 0.044624736 -38.900203 46.874314 6572.7838 5.1331733e+09 0.14053602 0.043781298 -38.989868 46.772422 6574.8608 4.7662474e+09 0.13727126 0.042441565 -39.079533 46.670517 6576.9378 4.4241042e+09 0.13359579 0.040291954 -39.169183 46.564601 6579.0148 4.1125678e+09 0.12917385 0.037062351 -39.258834 46.458650 6581.0918 3.8244507e+09 0.12543806 0.035568802 -39.348485 46.354903 6583.1688 3.5513208e+09 0.12254420 0.034936208 -39.438136 46.253027 6585.2458 3.2940699e+09 0.11997343 0.033774224 -39.527434 46.150797 6587.3229 3.0566721e+09 0.11802112 0.033229902 -39.613010 46.044846 6589.3999 2.8396269e+09 0.11609509 0.032252682 -39.698586 45.938895 6591.4769 2.6467888e+09 0.11369657 0.028663813 -39.778143 45.842688 6593.5539 2.4950241e+09 0.11142560 0.026587278 -39.854209 45.752133 6595.6309 2.3632343e+09 0.10867289 0.025688996 -39.930275 45.661578 6597.7079 2.2422278e+09 0.10637863 0.025499341 -40.014636 45.557594 6599.7849 2.1095433e+09 0.10514385 0.024976939 -40.100214 45.451641 6601.8619 1.9717564e+09 0.10451664 0.027451605 -40.185790 45.347393 6603.9389 1.8444283e+09 0.10281370 0.026107431 -40.271366 45.245517 6606.0159 1.7269698e+09 0.10223183 0.027475324 -40.356942 45.143641 6608.0929 1.6153804e+09 0.099762923 0.023729914 -40.438589 45.037836 6610.1700 1.5064620e+09 0.096627435 0.024165368 -40.520090 44.931885 6612.2470 1.4098586e+09 0.094253897 0.024136229 -40.601597 44.828005 6614.3240 1.3223914e+09 0.092900027 0.023717287 -40.683109 44.726114 6616.4010 1.2446938e+09 0.091060343 0.023345233 -40.764621 44.623992 6618.4780 1.1696735e+09 0.090051944 0.024131737 -40.846122 44.518040 6620.5550 1.0993332e+09 0.088927198 0.024946046 -40.927623 44.412088 6622.6320 1.0292878e+09 0.087226770 0.024589773 -41.009125 44.308592 6624.7090 9.6384283e+08 0.085310919 0.025241844 -41.090626 44.206716 6626.7860 9.0463780e+08 0.083138661 0.025589430 -41.170241 44.105985 6628.8630 8.5161428e+08 0.081797590 0.026053497 -41.239062 44.011808 6630.9400 8.0990814e+08 0.080196522 0.025930618 -41.307884 43.917631 6633.0171 7.6767850e+08 0.079230530 0.026155231 -41.381626 43.820467 6635.0941 7.2733620e+08 0.078170659 0.026413894 -41.463127 43.718591 6637.1711 6.8095744e+08 0.077145832 0.026077625 -41.544628 43.616714 6639.2481 6.3678874e+08 0.076688845 0.025539404 -41.622324 43.511030 6641.3251 5.9843365e+08 0.077550691 0.025149404 -41.699751 43.405078 6643.4021 5.6075815e+08 0.077239907 0.025253331 -41.775221 43.301082 6645.4791 5.3023142e+08 0.076525054 0.025676130 -41.848570 43.199206 6647.5561 4.9804623e+08 0.075743739 0.026730579 -41.922027 43.097223 6649.6331 4.6955047e+08 0.075060975 0.026760951 -41.999465 42.991256 6651.7101 4.4446659e+08 0.074765148 0.027028383 -42.076904 42.885290 6653.7871 4.1460760e+08 0.074418582 0.027927550 -42.154335 42.781665 6655.8642 3.9104813e+08 0.072947558 0.027967287 -42.231760 42.679789 6657.9412 3.6906383e+08 0.071678933 0.029992833 -42.308702 42.577429 6660.0182 3.4755863e+08 0.070433420 0.031642517 -42.382053 42.471479 6662.0952 3.2947691e+08 0.069054308 0.032990868 -42.455404 42.365528 6664.1722 3.1363903e+08 0.067871057 0.031576043 -42.528755 42.262285 6666.2492 2.9637788e+08 0.067941048 0.026957155 -42.602107 42.160409 6668.3262 2.8005106e+08 0.067085057 0.027759448 -42.675458 42.057673 6670.4032 2.6661355e+08 0.066696149 0.027141827 -42.748809 41.951721 6672.4802 2.4892580e+08 0.066382958 0.027157949 -42.822160 41.845769 6674.5572 2.3664393e+08 0.065205022 0.029424858 -42.892427 41.742901 6676.6342 2.2273232e+08 0.063079269 0.032122492 -42.961702 41.641025 6678.7113 2.0910468e+08 0.062422841 0.030460895 -43.032211 41.537915 6680.7883 1.9976532e+08 0.063297721 0.029611636 -43.105562 41.431964 6682.8653 1.9081913e+08 0.063938227 0.031085646 -43.178913 41.326013 6684.9423 1.7984610e+08 0.063822189 0.032701909 -43.248806 41.223521 6687.0193 1.7003227e+08 0.062153711 0.034332140 -43.318083 41.121644 6689.0963 1.6052037e+08 0.059381785 0.033929337 -43.387359 41.019768 6691.1733 1.4941964e+08 0.058408309 0.032960373 -43.456634 40.917891 6693.2503 1.4022092e+08 0.057427131 0.031518214 -43.525910 40.816015 6695.3273 1.3478459e+08 0.056791882 0.029799347 -43.595196 40.710289 6697.4043 1.3222298e+08 0.055987381 0.030142435 -43.664483 40.604321 6699.4813 1.2854995e+08 0.054427753 0.031146286 -43.733764 40.500347 6701.5584 1.1963249e+08 0.052446216 0.032228713 -43.803039 40.398471 6703.6354 1.1129781e+08 0.052229755 0.035265121 -43.872314 40.296458 6705.7124 1.0542247e+08 0.052011833 0.037935064 -43.941591 40.190508 6707.7894 99134121. 0.051386811 0.040073748 -44.010868 40.084557 6709.8664 95112856. 0.050144716 0.040581475 -44.077783 39.980967 6711.9434 85578685. 0.047585321 0.041765565 -44.142984 39.879090 6714.0204 80003927. 0.045120562 0.047304943 -44.208185 39.776702 6716.0974 75634181. 0.043120689 0.048544850 -44.273385 39.670750 6718.1744 73902118. 0.040841536 0.050084074 -44.338586 39.564797 6720.2514 70107424. 0.039552567 0.050390633 -44.406523 39.461583 6722.3284 67024163. 0.038672919 0.050199158 -44.475798 39.359706 6724.4055 62980421. 0.034579809 0.046540841 -44.546214 39.253649 6726.4825 60793918. 0.029751956 0.040955719 -44.620731 39.132560 6728.5595 61343126. 0.025249501 0.040421058 -44.694304 39.012825 6730.6365 58647263. -0.0055411390 0.041251599 -44.755431 38.910948 6732.7135 58165639. 0.019078706 0.043871561 -44.816557 38.809072 6734.7905 54114874. 0.072919676 0.049306037 -44.880195 38.707196