# # 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 = 43.886942 km # Date (UTC) = 2013-01-05T09:28:06.880 # Date (julian) = 2456297.89452407 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6478.9675 5.3965071e+10 0.049274848 0.025940906 -23.339596 48.374821 6480.8329 4.7265957e+10 0.053716186 0.026503415 -23.431093 48.279663 6482.6983 4.2842476e+10 0.056455241 0.027065923 -23.514524 48.195475 6484.5637 4.0284162e+10 0.057380571 0.027628432 -23.595854 48.114146 6486.4291 3.8823138e+10 0.057195492 0.028190941 -23.677183 48.032816 6488.2945 3.8028143e+10 0.056415986 0.028753449 -23.763195 47.944171 6490.1599 3.6634868e+10 0.056284103 0.029315958 -23.851032 47.852674 6492.0253 3.5052146e+10 0.056337940 0.029878467 -23.938870 47.761176 6493.8907 3.3469187e+10 0.056384599 0.030440976 -24.026720 47.666053 6495.7561 3.2016384e+10 0.056287974 0.031003484 -24.114570 47.570882 6497.6215 3.1199279e+10 0.055782361 0.031565993 -24.202418 47.476649 6499.4870 3.0477936e+10 0.054621019 0.032128502 -24.290255 47.385151 6501.3524 2.9992848e+10 0.052407181 0.032691010 -24.378092 47.293654 6503.2178 2.9700623e+10 0.049640839 0.033253519 -24.464016 47.200243 6505.0832 2.9493834e+10 0.048077975 0.033816028 -24.548194 47.105086 6506.9486 2.9140960e+10 0.050388596 0.034378537 -24.632371 47.009929 6508.8140 2.8672600e+10 0.059289021 0.034941045 -24.719442 46.917666 6510.6794 2.7852730e+10 0.075611220 0.035503554 -24.807280 46.826168 6512.5448 2.6905170e+10 0.094697015 0.036066063 -24.894169 46.735074 6514.4102 2.6023615e+10 0.11222714 0.036628571 -24.965740 46.650490 6516.2756 2.5255535e+10 0.12559005 0.037191080 -25.037310 46.565906 6518.1410 2.4684127e+10 0.13541069 0.037753589 -25.108881 46.481323 6520.0064 2.3935580e+10 0.14522424 0.038316098 -25.192861 46.389934 6521.8718 2.2997211e+10 0.15502634 0.038878606 -25.277038 46.298436 6523.7373 2.1899594e+10 0.15978568 0.039361839 -25.361216 46.206017 6525.6027 2.0787480e+10 0.16388524 0.039713434 -25.445393 46.110860 6527.4681 1.9698432e+10 0.16796364 0.041056293 -25.529571 46.015703 6529.3335 1.8634577e+10 0.17032387 0.042766982 -25.611847 45.922448 6531.1989 1.7575808e+10 0.17208213 0.045518156 -25.692365 45.830951 6533.0643 1.6500515e+10 0.17444539 0.047546909 -25.772883 45.739454 6534.9297 1.5498958e+10 0.17519368 0.048204630 -25.853410 45.645063 6536.7951 1.4501160e+10 0.17462546 0.048501903 -25.933939 45.549890 6538.6605 1.3588620e+10 0.17437492 0.049478316 -26.013791 45.455306 6540.5259 1.2808994e+10 0.17424380 0.051102561 -26.082108 45.370723 6542.3913 1.2184960e+10 0.17308557 0.051150808 -26.150424 45.286141 6544.2567 1.1654250e+10 0.17184609 0.051852617 -26.218741 45.201559 6546.1221 1.1102313e+10 0.17027557 0.052565031 -26.295442 45.110189 6547.9876 1.0498182e+10 0.16959747 0.053662912 -26.372300 45.018691 6549.8530 9.8599945e+09 0.16844857 0.054835513 -26.450070 44.926282 6551.7184 9.2836668e+09 0.16660081 0.055487909 -26.530588 44.831123 6553.5838 8.7251389e+09 0.16443625 0.055041612 -26.611105 44.735965 6555.4492 8.1957993e+09 0.16244303 0.054475945 -26.687839 44.642699 6557.3146 7.6613997e+09 0.16053491 0.053668922 -26.761037 44.551202 6559.1800 7.1741886e+09 0.15808612 0.052366865 -26.834235 44.459705 6561.0454 6.7539559e+09 0.15563498 0.051350306 -26.903603 44.373633 6562.9108 6.4055883e+09 0.15379345 0.050013233 -26.971920 44.289051 6564.7762 6.1212718e+09 0.15164798 0.048419815 -27.040237 44.204468 6566.6416 5.8336093e+09 0.14961809 0.046819918 -27.114632 44.114961 6568.5070 5.5361526e+09 0.14796468 0.045305577 -27.191502 44.023450 6570.3724 5.2280181e+09 0.14674927 0.044763231 -27.268372 43.931940 6572.2379 4.9325893e+09 0.14524281 0.044093945 -27.341647 43.836859 6574.1033 4.6614331e+09 0.14299980 0.042805411 -27.414844 43.741701 6575.9687 4.4052878e+09 0.14101442 0.041402833 -27.488042 43.646543 6577.8341 4.1557321e+09 0.13902035 0.038910246 -27.561240 43.551386 6579.6995 3.9109154e+09 0.13667109 0.036685962 -27.634438 43.456229 6581.5649 3.6839777e+09 0.13439643 0.035425553 -27.701782 43.368182 6583.4303 3.4983801e+09 0.13227935 0.034803870 -27.763592 43.286853 6585.2957 3.3473901e+09 0.13001121 0.033734365 -27.825403 43.205523 6587.1611 3.2133963e+09 0.12765939 0.033194065 -27.892227 43.118106 6589.0265 3.0750456e+09 0.12511278 0.032993368 -27.965424 43.022949 6590.8919 2.9248104e+09 0.12221949 0.029402945 -28.038622 42.927792 6592.7573 2.7775098e+09 0.11954560 0.027337924 -28.109229 42.835226 6594.6227 2.6344020e+09 0.11663873 0.025830669 -28.178767 42.743729 6596.4881 2.4991546e+09 0.11366007 0.025725054 -28.248305 42.652232 6598.3536 2.3608623e+09 0.11180769 0.025238365 -28.317843 42.557163 6600.2190 2.2263799e+09 0.11149372 0.025440024 -28.387382 42.462004 6602.0844 2.1103808e+09 0.11108080 0.027444634 -28.455042 42.369417 6603.9498 2.0110186e+09 0.10974099 0.026101007 -28.516860 42.284823 6605.8152 1.9397707e+09 0.10940642 0.027348920 -28.578678 42.200230 6607.6806 1.8713460e+09 0.10754454 0.024363078 -28.641807 42.114464 6609.5460 1.7957843e+09 0.10479955 0.023868120 -28.711346 42.022966 6611.4114 1.7131330e+09 0.10232211 0.024696098 -28.780884 41.931469 6613.2768 1.6324031e+09 0.10143886 0.023675155 -28.848821 41.838370 6615.1422 1.5529793e+09 0.10027631 0.023255907 -28.914699 41.743212 6617.0076 1.4799153e+09 0.098968957 0.023441779 -28.980577 41.648054 6618.8730 1.4092581e+09 0.098239522 0.024430044 -29.049037 41.555477 6620.7384 1.3362522e+09 0.097510782 0.025005161 -29.118575 41.463980 6622.6039 1.2762242e+09 0.096128565 0.024597267 -29.188113 41.372483 6624.4693 1.2170590e+09 0.094457942 0.025113503 -29.246968 41.287713 6626.3347 1.1716589e+09 0.092874064 0.026164503 -29.305526 41.203130 6628.2001 1.1360226e+09 0.091173450 0.025784328 -29.364083 41.118548 6630.0655 1.0974890e+09 0.089615823 0.025928463 -29.429221 41.024459 6631.9309 1.0594539e+09 0.087659797 0.026025325 -29.495099 40.929301 6633.7963 1.0139350e+09 0.086048077 0.026291279 -29.560976 40.834753 6635.6617 9.6665378e+08 0.084527787 0.026499021 -29.626854 40.743255 6637.5271 9.2270126e+08 0.083344813 0.025903247 -29.692733 40.651758 6639.3925 8.7686028e+08 0.082773848 0.025487778 -29.757025 40.558665 6641.2579 8.3900018e+08 0.083388081 0.025149176 -29.819253 40.463494 6643.1233 8.0198110e+08 0.083136955 0.025211241 -29.881481 40.368322 6644.9887 7.6288741e+08 0.082503159 0.025450468 -29.946273 40.275732 6646.8542 7.3073699e+08 0.081567220 0.026362285 -30.012151 40.184234 6648.7196 6.9780162e+08 0.080697394 0.027445961 -30.078029 40.092737 6650.5850 6.6949803e+08 0.080439163 0.026389153 -30.140357 39.997690 6652.4504 6.3821066e+08 0.080170804 0.027374438 -30.202575 39.902533 6654.3158 6.0487304e+08 0.079547617 0.027901699 -30.263149 39.809891 6656.1812 5.7920563e+08 0.078018003 0.028182448 -30.318454 39.725307 6658.0466 5.6037552e+08 0.076823525 0.030143723 -30.373758 39.640724 6659.9120 5.4476225e+08 0.075529287 0.031644353 -30.430195 39.555008 6661.7774 5.2776737e+08 0.074167911 0.032930903 -30.492413 39.463510 6663.6428 5.0696208e+08 0.073037537 0.032305071 -30.554632 39.372012 6665.5082 4.8272942e+08 0.072965711 0.027714379 -30.615271 39.278935 6667.3736 4.6162525e+08 0.072481923 0.027240701 -30.673829 39.183779 6669.2390 4.3913188e+08 0.071484705 0.028110188 -30.732387 39.088622 6671.1045 4.2072633e+08 0.071521533 0.026866837 -30.793505 38.996024 6672.9699 4.0576815e+08 0.071119984 0.027441747 -30.855723 38.904527 6674.8353 3.9216308e+08 0.069693035 0.029659394 -30.917941 38.813030 6676.7007 3.7650174e+08 0.067623723 0.032165305 -30.976629 38.717979 6678.5661 3.6105857e+08 0.066971848 0.030557994 -31.035196 38.622807 6680.4315 3.4338573e+08 0.067648845 0.029534593 -31.094621 38.528498 6682.2969 3.2720783e+08 0.068352020 0.030651384 -31.156839 38.437001 6684.1623 3.1441646e+08 0.068524307 0.032662328 -31.219057 38.345504 6686.0277 2.9816093e+08 0.068111592 0.033777208 -31.279436 38.252167 6687.8931 2.8851431e+08 0.065993045 0.033844798 -31.337994 38.157009 6689.7585 2.7581869e+08 0.064116579 0.033333228 -31.396553 38.061852 6691.6239 2.6525636e+08 0.063193009 0.032854055 -31.452292 37.969515 6693.4893 2.5345507e+08 0.062402173 0.031436214 -31.507190 37.878017 6695.3548 2.4340072e+08 0.062037377 0.029794310 -31.562227 37.786381 6697.2202 2.3296219e+08 0.061411015 0.030119127 -31.620785 37.691223 6699.0856 2.2407786e+08 0.060109642 0.031511480 -31.679344 37.596065 6700.9510 2.1732807e+08 0.058366739 0.031373082 -31.737902 37.502026 6702.8164 2.0630205e+08 0.057859917 0.033528614 -31.796460 37.410529 6704.6818 1.9882539e+08 0.057841204 0.036512347 -31.855018 37.319031 6706.5472 1.8782030e+08 0.057441774 0.039398756 -31.911478 37.225436 6708.4126 1.8171839e+08 0.056868749 0.040492888 -31.966377 37.130278 6710.2780 1.7547562e+08 0.055507486 0.040550912 -32.021275 37.035121 6712.1434 1.6892743e+08 0.053439838 0.042096239 -32.079252 36.943042 6714.0088 1.6230592e+08 0.051334286 0.047304072 -32.137810 36.851545 6715.8742 1.5527677e+08 0.049696115 0.048272729 -32.195970 36.760048 6717.7396 1.4973061e+08 0.047694422 0.049828518 -32.250869 36.668551 6719.6050 1.4224072e+08 0.046071784 0.050794998 -32.305768 36.577053 6721.4705 1.3736820e+08 0.046219950 0.050445650 -32.360670 36.484173 6723.3359 1.3046733e+08 0.044844833 0.049556261 -32.415577 36.389000 6725.2013 1.2279787e+08 0.040850684 0.041450296 -32.470484 36.293828 6727.0667 1.1750273e+08 0.039384921 0.040871551 -32.525385 36.201025 6728.9321 1.1486715e+08 0.039187211 0.040949172 -32.580283 36.109527 6730.7975 1.1172019e+08 0.037625252 0.041472365 -32.635180 36.018030 6732.6629 1.0733035e+08 0.036444188 0.043862247 -32.697235 35.910791 6734.5283 1.0142411e+08 0.035958142 0.049321813 -32.759978 35.802038 6736.3937 95547279. 0.037348364 0.051843476 -32.816722 35.702284 6738.2591 92357994. 0.038279218 0.058747691 -32.867960 35.610786 6740.1245 88008977. 0.037835350 0.064263103 -32.919198 35.519289 6741.9899 83959312. 0.035698567 0.068582058 -32.973326 35.427792 6743.8553 80428869. 0.031212880 0.076817589 -33.028225 35.336295 6745.7208 76435941. 0.029499888 0.078869886 -33.082915 35.244589 6747.5862 72461860. 0.024386266 0.067159368 -33.134154 35.149433 6749.4516 70436101. 0.022068936 0.072154293 -33.185392 35.054276 6751.3170 68377771. 0.017387233 0.073845691 -33.236630 34.960307 6753.1824 64914866. 0.0096242947 0.073567522 -33.287868 34.868810 6755.0478 62019687. -0.025671127 0.074584392 -33.339107 34.777313 6756.9132 58578175. -0.00077609783 0.076516708 -33.397157 34.678073 6758.7786 57308667. 0.062869225 0.075351792 -33.459899 34.573501