# # 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 = 63.169325 km # Date (UTC) = 2014-11-28T09:26:30.642 # Date (julian) = 2456989.89341021 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6500.1825 9.1671493e+10 0.048315137 0.032338237 114.22650 27.728166 6502.6890 7.8069464e+10 0.057673901 0.033094055 114.28268 27.597077 6505.1954 6.8111059e+10 0.067197093 0.033849873 114.33513 27.474685 6507.7019 6.0693360e+10 0.077064807 0.034605691 114.38854 27.350079 6510.2083 5.4349770e+10 0.087308734 0.035361508 114.44755 27.212385 6512.7148 4.8831046e+10 0.098006886 0.036117326 114.50656 27.074144 6515.2213 4.3773730e+10 0.10914553 0.036873144 114.56557 26.931532 6517.7277 3.9311079e+10 0.12080926 0.037628962 114.62459 26.789302 6520.2342 3.5316060e+10 0.13299062 0.038384779 114.68360 26.651608 6522.7407 3.1718483e+10 0.14366524 0.039111203 114.74261 26.513915 6525.2471 2.8461991e+10 0.14996993 0.039754010 114.80162 26.376221 6527.7536 2.5543064e+10 0.15484785 0.041263591 114.86055 26.238714 6530.2601 2.3097360e+10 0.15940033 0.044192776 114.91302 26.116298 6532.7665 2.1065111e+10 0.16331605 0.047324543 114.96547 25.993905 6535.2730 1.9311006e+10 0.16552940 0.048105875 115.02267 25.860435 6537.7795 1.7587025e+10 0.16735941 0.049052703 115.08169 25.722722 6540.2859 1.5918139e+10 0.16887464 0.050989177 115.13731 25.585021 6542.7924 1.4374777e+10 0.16853146 0.051303071 115.19141 25.447327 6545.2988 1.2953602e+10 0.16808634 0.052458244 115.24873 25.309633 6547.8053 1.1722697e+10 0.16681864 0.053593610 115.30774 25.171940 6550.3118 1.0685349e+10 0.16521447 0.055063426 115.35995 25.043776 6552.8182 9.8574468e+09 0.16323170 0.055380816 115.40803 24.921383 6555.3247 9.1874368e+09 0.16091829 0.054580534 115.45977 24.793863 6557.8312 8.5246320e+09 0.15863270 0.053345127 115.51878 24.656169 6560.3376 7.8685698e+09 0.15596921 0.051969887 115.57631 24.518475 6562.8441 7.2337832e+09 0.15334461 0.050076712 115.63041 24.380781 6565.3506 6.6415971e+09 0.15112400 0.047920327 115.68450 24.243088 6567.8570 6.1142689e+09 0.14954669 0.045892548 115.73859 24.105394 6570.3635 5.6474281e+09 0.14835072 0.044766938 115.79128 23.971285 6572.8700 5.2799339e+09 0.14686289 0.043731953 115.83937 23.848876 6575.3764 4.9903621e+09 0.14485051 0.041997038 115.88746 23.726467 6577.8829 4.7284340e+09 0.14254473 0.038833570 115.94124 23.589582 6580.3894 4.4585595e+09 0.14008570 0.036160936 115.99533 23.451888 6582.8958 4.1600759e+09 0.13816431 0.035050018 116.04942 23.318687 6585.4023 3.8819403e+09 0.13610864 0.033649159 116.10352 23.185911 6587.9087 3.6181294e+09 0.13438223 0.033359713 116.15761 23.048806 6590.4152 3.3836749e+09 0.13189939 0.030289711 116.21171 22.911111 6592.9217 3.1958677e+09 0.12909087 0.027178298 116.26071 22.786373 6595.4281 3.0390804e+09 0.12575622 0.025667970 116.30879 22.663981 6597.9346 2.9012363e+09 0.12261644 0.025427802 116.36024 22.535785 6600.4411 2.7649566e+09 0.12121434 0.025896630 116.41433 22.403008 6602.9475 2.6142816e+09 0.12000228 0.026708047 116.46585 22.267637 6605.4540 2.4624408e+09 0.11929198 0.027045911 116.51503 22.129922 6607.9605 2.3288635e+09 0.11762330 0.023810444 116.56367 21.999750 6610.4669 2.2181033e+09 0.11458261 0.024449117 116.61175 21.877358 6612.9734 2.1271762e+09 0.11323537 0.023593471 116.66006 21.752842 6615.4799 2.0390704e+09 0.11199870 0.023266295 116.70924 21.620066 6617.9863 1.9461400e+09 0.11135115 0.023766261 116.75925 21.486448 6620.4928 1.8493161e+09 0.11079063 0.024925997 116.81335 21.348754 6622.9992 1.7630000e+09 0.10943688 0.024492026 116.86676 21.211737 6625.5057 1.6783349e+09 0.10801580 0.026001073 116.91594 21.078960 6628.0122 1.5959216e+09 0.10624750 0.025708040 116.96512 20.945672 6630.5186 1.5092549e+09 0.10470412 0.025929580 117.01429 20.807979 6633.0251 1.4301637e+09 0.10317119 0.026156637 117.06339 20.671673 6635.5316 1.3683869e+09 0.10134964 0.026479505 117.11147 20.553652 6638.0380 1.3153693e+09 0.099870763 0.025669985 117.15956 20.435631 6640.5445 1.2704432e+09 0.099591601 0.025204031 117.20850 20.302192 6643.0510 1.2170230e+09 0.099034607 0.025200314 117.25768 20.164477 6645.5574 1.1616280e+09 0.097530554 0.025712820 117.30686 20.030464 6648.0639 1.1102601e+09 0.096016388 0.027007056 117.35604 19.897689 6650.5704 1.0615966e+09 0.094810620 0.026385809 117.40522 19.764913 6653.0768 1.0168126e+09 0.093868433 0.027564885 117.45440 19.632137 6655.5833 9.6816299e+08 0.091853815 0.027851232 117.50357 19.496003 6658.0898 9.2308116e+08 0.089882846 0.030220260 117.55275 19.358309 6660.5962 8.8066849e+08 0.088199366 0.032167931 117.59837 19.233386 6663.1027 8.4632437e+08 0.086865096 0.032454757 117.64209 19.115365 6665.6091 8.2018521e+08 0.086347541 0.027549021 117.68777 18.992011 6668.1156 7.8790443e+08 0.085638811 0.027573083 117.73695 18.859234 6670.6221 7.5994536e+08 0.085144305 0.027040434 117.78612 18.726458 6673.1285 7.2901372e+08 0.084738660 0.027651460 117.83530 18.593682 6675.6350 6.9838391e+08 0.082582197 0.031014626 117.88448 18.459451 6678.1415 6.6877999e+08 0.081134709 0.030841992 117.93367 18.321737 6680.6479 6.3734832e+08 0.081610342 0.029581333 117.98156 18.185312 6683.1544 6.0708132e+08 0.082298414 0.031414856 118.02582 18.052537 6685.6609 5.8303892e+08 0.081774798 0.033402873 118.07120 17.919761 6688.1673 5.5918455e+08 0.078994496 0.033823816 118.12038 17.786984 6690.6738 5.3441218e+08 0.076970806 0.033038646 118.16956 17.654207 6693.1803 5.1410075e+08 0.075791684 0.031542249 118.21873 17.521431 6695.6867 4.9140586e+08 0.075119710 0.029733331 118.26712 17.388655 6698.1932 4.7350318e+08 0.073983652 0.030482989 118.31137 17.255878 6700.6997 4.5450814e+08 0.071773072 0.031186670 118.35626 17.123102 6703.2061 4.3608560e+08 0.071030891 0.034191003 118.40543 16.990327 6705.7126 4.1870855e+08 0.070881023 0.037935431 118.45415 16.857551 6708.2190 4.0244010e+08 0.070216297 0.040282111 118.49841 16.724774 6710.7255 3.8825143e+08 0.068306974 0.040638504 118.54296 16.591997 6713.2320 3.7096692e+08 0.065820049 0.044525627 118.59214 16.459221 6715.7384 3.5635642e+08 0.063531117 0.048133843 118.64118 16.326445 6718.2449 3.4161048e+08 0.061085364 0.050193833 118.68545 16.193668 6720.7514 3.2511662e+08 0.060619967 0.050332707 118.72971 16.060892 6723.2578 3.1067340e+08 0.059509010 0.049512742 118.77397 15.928097 6725.7643 2.9979610e+08 0.055084111 0.041098600 118.81823 15.795301 6728.2708 2.8938278e+08 0.054144926 0.040011858 118.86721 15.662524 6730.7772 2.8355056e+08 0.052297873 0.041444575 118.91639 15.529748 6733.2837 2.7176016e+08 0.050837825 0.045464549 118.96101 15.401528 6735.7902 2.5758788e+08 0.051830861 0.050132241 119.00527 15.273669 6738.2966 2.4693585e+08 0.053212129 0.058954122 119.04953 15.141418 6740.8031 2.3789243e+08 0.052309079 0.065422295 119.09378 15.008642 6743.3095 2.3371630e+08 0.047888955 0.073135653 119.13804 14.875866 6745.8160 2.2592152e+08 0.045162721 0.078909932 119.18231 14.743090 6748.3225 2.1576750e+08 0.040908687 0.068713471 119.23179 14.594642 6750.8289 2.0396647e+08 0.037984957 0.073419585 119.28207 14.444013 6753.3354 1.9193678e+08 0.034919420 0.074062730 119.32633 14.316154 6755.8419 1.8542986e+08 0.032186474 0.074236238 119.37059 14.188227 6758.3483 1.7816028e+08 0.031348491 0.074441927 119.41485 14.055454 6760.8548 1.7235865e+08 0.031670182 0.077691338 119.45911 13.922677 6763.3613 1.6974362e+08 0.037083838 0.077538008 119.50337 13.794719 6765.8677 1.6529869e+08 0.039263374 0.079689601 119.54763 13.666861 6768.3742 1.6336559e+08 0.035432330 0.082202468 119.59787 13.516396 6770.8807 1.5744927e+08 0.030339893 0.089015688 119.64739 13.367818 6773.3871 1.4747855e+08 0.025755845 0.095094966 119.69165 13.235042 6775.8936 1.3961723e+08 0.021173473 0.10117425 119.73592 13.102920 6778.4001 1.3494165e+08 0.016572936 0.10725352 119.78018 12.975042 6780.9065 1.2887784e+08 0.011986644 0.11333280 119.82508 12.844771 6783.4130 1.2736680e+08 0.0073883600 0.11941208 119.87565 12.693049 6785.9194 1.2268021e+08 0.0028032226 0.12549136 119.92420 12.548976 6788.4259 1.1728858e+08 -0.0017765119 0.13157064 119.96847 12.421098 6790.9324 1.1375720e+08 -0.0063450787 0.13764992 120.01293 12.287972 6793.4388 1.0807182e+08 -0.010917226 0.14372920 120.05790 12.141845 6795.9453 1.0572887e+08 -0.015465580 0.14980847 120.10250 12.002505 6798.4518 99445566. -0.020023013 0.15588775 120.14676 11.869729 6800.9582 90499837. -0.024597556 0.16196703 120.19402 11.730613 6803.4647 86596505. -0.029128848 0.16804631 120.24460 11.584486 6805.9712 85063849. -0.033618665 0.17412559 120.28736 11.451065 6808.4776 83523122. -0.038090559 0.18020487 120.32670 11.323206 6810.9841 84494664. -0.042524788 0.18628415 120.37349 11.179531 6813.4906 79395788. -0.047044009 0.19236342 120.42407 11.027784 6815.9970 76055052. -0.051528969 0.19844270 120.47465 10.880998 6818.5035 71518864. -0.056038463 0.20452198 120.52407 10.736763 6821.0100 65824522. -0.060594083 0.21060126 120.56341 10.608904 6823.5164 65192774. -0.065014095 0.21668054 120.60354 10.479766 6826.0229 64011039. -0.069441028 0.22275982 120.65413 10.333639 6828.5293 63396874. -0.073854915 0.22883910 120.70307 10.187512 6831.0358 61481402. -0.078332337 0.23491837 120.74803 10.041384 6833.5423 60915907. -0.082817534 0.24099765 120.79300 9.8923817 6836.0487 59189492. -0.087415164 0.24707693 120.83796 9.7406341 6838.5552 54594354. -0.092264905 0.25315621 120.88704 9.5930020 6841.0617 50410721. -0.097348419 0.25923549 120.93762 9.4468748 6843.5681 48541107. -0.10266782 0.26531477 120.97749 9.3181572 6846.0746 47373280. -0.10855228 0.27139405 121.01683 9.1902991 6848.5811 47103882. -0.11644097 0.27747332 121.06651 9.0456435 6851.0875 45792249. -0.14120138 0.28355260 121.11630 8.8995161 6853.5940 44884437. -0.12928508 0.28963188 121.16127 8.7533880 6856.1005 45306424. -0.097600344 0.29571116 121.20623 8.6072601