# # 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 = 69.242892 km # Date (UTC) = 2014-11-24T09:34:13.721 # Date (julian) = 2456985.89876992 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6507.1718 7.2968384e+10 0.078696786 0.034445857 112.37606 28.072036 6509.8618 6.4656544e+10 0.090491511 0.035256998 112.43694 27.921434 6512.5517 5.7051779e+10 0.10249823 0.036068138 112.49499 27.773661 6515.2416 5.0313445e+10 0.11473973 0.036879279 112.56120 27.610438 6517.9315 4.4151106e+10 0.12719862 0.037690419 112.63358 27.435520 6520.6215 3.8670711e+10 0.13992008 0.038501560 112.69771 27.285339 6523.3114 3.3990334e+10 0.14925827 0.039256293 112.76104 27.137479 6526.0013 3.0185259e+10 0.15364540 0.039669479 112.82437 26.984429 6528.6913 2.6866829e+10 0.15843849 0.041990857 112.88706 26.832021 6531.3812 2.3925675e+10 0.16157206 0.045783495 112.94511 26.684249 6534.0711 2.1354178e+10 0.16358714 0.047964449 113.00437 26.535274 6536.7610 1.9061810e+10 0.16417333 0.048471421 113.06771 26.382202 6539.4510 1.7017265e+10 0.16478911 0.050189510 113.12929 26.230890 6542.1409 1.5222885e+10 0.16430980 0.051055729 113.18735 26.083117 6544.8308 1.3634359e+10 0.16423513 0.052318325 113.24540 25.935344 6547.5207 1.2246771e+10 0.16374453 0.053485395 113.30346 25.787572 6550.2107 1.1081453e+10 0.16342392 0.055038111 113.36151 25.636935 6552.9006 1.0067827e+10 0.16227292 0.055360085 113.41956 25.483885 6555.5905 9.2225159e+09 0.16004292 0.054357178 113.47762 25.334255 6558.2805 8.4635332e+09 0.15754649 0.053000320 113.53567 25.186482 6560.9704 7.7365191e+09 0.15411508 0.051399382 113.60451 25.022809 6563.6603 7.0784513e+09 0.15142088 0.049164537 113.67502 24.855933 6566.3502 6.4607075e+09 0.14923542 0.046984754 113.72780 24.708160 6569.0402 5.9379811e+09 0.14759619 0.044855039 113.78163 24.559329 6571.7301 5.4947374e+09 0.14660132 0.044303872 113.83968 24.406279 6574.4200 5.1111416e+09 0.14469201 0.042653270 113.89774 24.254842 6577.1100 4.7751975e+09 0.14280883 0.040047667 113.95579 24.107069 6579.7999 4.4659739e+09 0.14048084 0.036630769 114.01385 23.959297 6582.4898 4.1795822e+09 0.13853952 0.035160505 114.07190 23.811524 6585.1797 3.9110417e+09 0.13678249 0.033827081 114.12723 23.663740 6587.8697 3.6744215e+09 0.13511747 0.033351053 114.18002 23.515945 6590.5596 3.4565603e+09 0.13278574 0.030021146 114.23608 23.368164 6593.2495 3.2559989e+09 0.13035123 0.026870247 114.29413 23.220393 6595.9394 3.0713093e+09 0.12721412 0.025720994 114.35218 23.072620 6598.6294 2.8961730e+09 0.12499832 0.025106682 114.41024 22.924848 6601.3193 2.7360517e+09 0.12463430 0.027196061 114.46390 22.777075 6604.0092 2.5845303e+09 0.12285844 0.026076754 114.51667 22.629303 6606.6992 2.4448116e+09 0.12181573 0.026247608 114.56945 22.481531 6609.3891 2.3199857e+09 0.11786322 0.023821507 114.62246 22.333758 6612.0790 2.2032839e+09 0.11435080 0.024261720 114.68051 22.185985 6614.7689 2.0981365e+09 0.11254148 0.023410726 114.73778 22.038212 6617.4589 1.9983964e+09 0.11074218 0.023591384 114.79056 21.890440 6620.1488 1.9026146e+09 0.11001595 0.024815145 114.84333 21.742668 6622.8387 1.8124260e+09 0.10872282 0.024534754 114.89611 21.594895 6625.5286 1.7242035e+09 0.10741553 0.026028437 114.94889 21.447114 6628.2186 1.6387976e+09 0.10578615 0.025791838 115.00167 21.299319 6630.9085 1.5599916e+09 0.10414511 0.025930541 115.05445 21.153981 6633.5984 1.4857067e+09 0.10268411 0.026256732 115.10722 21.011487 6636.2884 1.4177138e+09 0.10104347 0.026437773 115.16000 20.865992 6638.9783 1.3509282e+09 0.099819586 0.025629021 115.21278 20.718219 6641.6682 1.2891307e+09 0.10055356 0.025150569 115.26556 20.570446 6644.3581 1.2283591e+09 0.099485362 0.025382313 115.31833 20.422672 6647.0481 1.1773153e+09 0.098084413 0.026463086 115.37111 20.274900 6649.7380 1.1313026e+09 0.096815060 0.026616401 115.42388 20.127128 6652.4279 1.0749286e+09 0.096108229 0.027368259 115.48332 19.966022 6655.1178 1.0199854e+09 0.094640208 0.027658911 115.54074 19.806578 6657.8078 9.6359844e+08 0.092374438 0.029838105 115.58824 19.658805 6660.4977 9.1378435e+08 0.090325299 0.032078385 115.63749 19.512782 6663.1876 8.7512660e+08 0.088356481 0.032431216 115.69027 19.370287 6665.8776 8.3909460e+08 0.087421963 0.027109221 115.74304 19.225488 6668.5675 8.0431565e+08 0.085845110 0.027972958 115.79582 19.077715 6671.2574 7.7107829e+08 0.085128720 0.026869017 115.84573 18.929942 6673.9473 7.3270078e+08 0.083925250 0.028876034 115.89323 18.782170 6676.6373 6.9686851e+08 0.081020651 0.032124439 115.94415 18.637798 6679.3272 6.7009197e+08 0.080225582 0.029997392 115.99693 18.495281 6682.0171 6.4829220e+08 0.081331276 0.030437625 116.04574 18.348811 6684.7071 6.2779047e+08 0.081475345 0.032689972 116.09324 18.201039 6687.3970 6.0385238e+08 0.079437942 0.034121502 116.14074 18.057792 6690.0869 5.7765199e+08 0.076909103 0.033105904 116.18824 17.915296 6692.7768 5.5129846e+08 0.075770084 0.031863240 116.24808 17.753198 6695.4668 5.2553817e+08 0.075097968 0.029773735 116.30448 17.594942 6698.1567 4.9931174e+08 0.074162228 0.030432889 116.35198 17.447171 6700.8466 4.7531957e+08 0.071940857 0.031295676 116.39948 17.301563 6703.5365 4.5408545e+08 0.071490912 0.035017835 116.44698 17.159068 6706.2265 4.3851367e+08 0.071331742 0.038840557 116.49448 17.016573 6708.9164 4.2420483e+08 0.070515309 0.041041503 116.54197 16.874078 6711.6063 4.0583440e+08 0.068180078 0.041382064 116.59743 16.715207 6714.2963 3.8559092e+08 0.065525808 0.047325681 116.65775 16.546321 6716.9862 3.6558652e+08 0.063114869 0.049853913 116.70572 16.402838 6719.6761 3.5199261e+08 0.060899867 0.050727488 116.75322 16.260343 6722.3660 3.4165694e+08 0.060602166 0.050152690 116.80072 16.117848 6725.0560 3.3127251e+08 0.055799777 0.041541063 116.84821 15.975353 6727.7459 3.1795652e+08 0.054199922 0.039966647 116.89571 15.832858 6730.4358 3.0668801e+08 0.052467818 0.040976461 116.94510 15.684700 6733.1257 2.9313681e+08 0.050735980 0.044607011 116.99938 15.521845 6735.8157 2.8171293e+08 0.051530723 0.050159329 117.04946 15.368344 6738.5056 2.7183468e+08 0.052928522 0.060104650 117.09696 15.220572 6741.1955 2.6224235e+08 0.051710218 0.066316346 117.14063 15.076613 6743.8855 2.5359592e+08 0.046464058 0.077020693 117.18286 14.934097 6746.5754 2.4303675e+08 0.042819129 0.072297816 117.23511 14.774681 6749.2653 2.3197879e+08 0.040560566 0.072205291 117.28822 14.615349 6751.9552 2.2047952e+08 0.036156868 0.074115551 117.33572 14.472854 6754.6452 2.1315205e+08 0.034458445 0.075175965 117.38510 14.324695 6757.3351 2.0349151e+08 0.031769609 0.075723141 117.43939 14.161841 6760.0250 1.9405718e+08 0.032867152 0.076108983 117.48619 14.011614 6762.7149 1.8614163e+08 0.037613921 0.076897577 117.52841 13.869119 6765.4049 1.7645566e+08 0.040653868 0.079605104 117.57938 13.716229 6768.0948 1.7100529e+08 0.037980683 0.081197146 117.63321 13.560374 6770.7847 1.6717342e+08 0.032404777 0.088783015 117.68071 13.417879 6773.4747 1.5760522e+08 0.027561661 0.095307272 117.72834 13.271867 6776.1646 1.5160123e+08 0.022666871 0.10183153 117.77659 13.109013 6778.8545 1.4362685e+08 0.017808283 0.10835579 117.82446 12.956639 6781.5444 1.3670760e+08 0.012939394 0.11488004 117.87195 12.814144 6784.2344 1.3547252e+08 0.0079846614 0.12140430 117.91992 12.659025 6786.9243 1.2906063e+08 0.0031126365 0.12792856 117.96817 12.496170 6789.6142 1.2443121e+08 -0.0017832809 0.13445281 118.02223 12.339119 6792.3041 1.1677604e+08 -0.0066216009 0.14097707 118.07284 12.186654 6794.9941 1.1000569e+08 -0.011437212 0.14750133 118.11506 12.044160 6797.6840 1.0702397e+08 -0.016255649 0.15402558 118.16222 11.893330 6800.3739 1.0632571e+08 -0.021064321 0.16054984 118.21651 11.730475 6803.0639 1.0493968e+08 -0.025843050 0.16707410 118.26626 11.572153 6805.7538 98839096. -0.030565094 0.17359835 118.31451 11.414765 6808.4437 94373065. -0.035304077 0.18012261 118.36277 11.251910 6811.1336 88406599. -0.040020468 0.18664687 118.41069 11.097925 6813.8236 84783566. -0.044756422 0.19317112 118.45819 10.955430 6816.5135 82344752. -0.049504381 0.19969538 118.50610 10.805186 6819.2034 80174459. -0.054255363 0.20621964 118.55435 10.648363 6821.8934 76788806. -0.058983821 0.21274389 118.60260 10.486215 6824.5833 73175227. -0.063706240 0.21926815 118.65086 10.324717 6827.2732 69042193. -0.068420029 0.22579241 118.69911 10.167893 6829.9631 66971057. -0.073152901 0.23231666 118.74737 10.007649 6832.6531 66843899. -0.077898712 0.23884092 118.79562 9.8447946 6835.3430 67355417. -0.082651829 0.24536518 118.84935 9.6874235 6838.0329 66434834. -0.087389170 0.25188944 118.90212 9.5306006 6840.7228 64863251. -0.092120084 0.25841369 118.95038 9.3737781 6843.4128 62664091. -0.096844300 0.26493795 118.99863 9.2133765 6846.1027 58616123. -0.10155909 0.27146221 119.04689 9.0505216 6848.7926 55701819. -0.10627704 0.27798646 119.09514 8.8933088 6851.4826 55578541. -0.11100979 0.28451072 119.14339 8.7364856 6854.1725 55191470. -0.11572720 0.29103498 119.19164 8.5796620 6856.8624 54602417. -0.12042767 0.29755923 119.24488 8.4022819 6859.5523 55384781. -0.12511479 0.30408349 119.29958 8.2188662 6862.2423 53183692. -0.12979812 0.31060775 119.34784 8.0620431 6864.9322 53135894. -0.13448488 0.31713200 119.39609 7.9052202 6867.6221 50897727. -0.13918578 0.32365626 119.44434 7.7483974 6870.3120 45575464. -0.14391440 0.33018052 119.49259 7.5915743 6873.0020 43041515. -0.14865342 0.33670477 119.54265 7.4273018 6875.6919 41983024. -0.15340964 0.34322903 119.59894 7.2373358 6878.3818 43838618. -0.15816224 0.34975329 119.64392 7.0739990 6881.0718 45455143. -0.16295309 0.35627754 119.68819 6.9133714 6883.7617 45212704. -0.16784041 0.36280180 119.74449 6.7304060 6886.4516 41000675. -0.17286017 0.36932606 119.79496 6.5663802 6889.1415 38307061. -0.17866396 0.37585031 119.84375 6.4078155 6891.8315 35049971. -0.18883702 0.38237457 119.90004 6.2248515 6894.5214 34174068. -0.19012246 0.38889883 119.95115 6.0587622 6899.9012 35764713. -0.19018063 0.40194734 120.05560 5.7192974