# # 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 = 38.931041 km # Date (UTC) = 2011-01-07T09:22:22.296 # Date (julian) = 2455568.89053583 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6502.4332 1.5941621e+11 0.059113971 0.033016940 -27.022101 42.934911 6504.6131 1.3161676e+11 0.068441482 0.033674274 -27.103362 42.819436 6506.7930 1.0966553e+11 0.077917547 0.034331607 -27.188549 42.707887 6508.9728 9.2409240e+10 0.087617916 0.034988941 -27.274086 42.596687 6511.1527 7.9031011e+10 0.097628194 0.035646275 -27.359623 42.483007 6513.3326 6.8630000e+10 0.10802331 0.036303608 -27.445161 42.367532 6515.5124 6.0052895e+10 0.11876545 0.036960942 -27.529666 42.253087 6517.6923 5.2886657e+10 0.12988251 0.037618276 -27.610939 42.141873 6519.8722 4.6899034e+10 0.14139350 0.038275609 -27.692212 42.030658 6522.0520 4.1782233e+10 0.15312764 0.038930878 -27.773473 41.915591 6524.2319 3.7579641e+10 0.15929184 0.039509346 -27.854733 41.800116 6526.4118 3.3882579e+10 0.16455398 0.040099786 -27.935993 41.687062 6528.5916 3.0646867e+10 0.16944513 0.041911836 -28.017254 41.575864 6530.7715 2.7731920e+10 0.17321795 0.044908803 -28.098515 41.464665 6532.9514 2.5042286e+10 0.17709762 0.047478973 -28.179775 41.353466 6535.1313 2.2744515e+10 0.17862008 0.048167360 -28.261036 41.242267 6537.3111 2.0809367e+10 0.17897032 0.048831906 -28.330880 41.138680 6539.4910 1.9215058e+10 0.17850465 0.050237959 -28.399309 41.036036 6541.6709 1.7841371e+10 0.17642066 0.051108975 -28.469955 40.931176 6543.8507 1.6495243e+10 0.17376364 0.051605171 -28.546938 40.819978 6546.0306 1.5193710e+10 0.17097784 0.052489703 -28.623921 40.708781 6548.2105 1.3991591e+10 0.16933148 0.053730498 -28.704844 40.593643 6550.3903 1.2928156e+10 0.16736963 0.055083096 -28.786104 40.478168 6552.5702 1.1984704e+10 0.16535812 0.055443247 -28.862385 40.365175 6554.7501 1.1109936e+10 0.16302449 0.054848120 -28.935103 40.253959 6556.9299 1.0292526e+10 0.16052367 0.053876407 -29.008866 40.141699 6559.1098 9.5456028e+09 0.15743324 0.052374787 -29.085850 40.026225 6561.2897 8.8595885e+09 0.15437800 0.051229933 -29.162833 39.910752 6563.4695 8.2204748e+09 0.15142335 0.049385208 -29.239817 39.799154 6565.6494 7.6247235e+09 0.14865464 0.047580975 -29.316801 39.687955 6567.8293 7.0781905e+09 0.14646403 0.045916005 -29.391352 39.574323 6570.0092 6.5745468e+09 0.14440785 0.044913717 -29.464059 39.458848 6572.1890 6.1123408e+09 0.14190639 0.044121906 -29.536765 39.344359 6574.3689 5.6720937e+09 0.13886291 0.042677827 -29.609472 39.233161 6576.5488 5.2698121e+09 0.13584701 0.040739757 -29.682179 39.121963 6578.7286 4.9154737e+09 0.13221542 0.037499021 -29.747675 39.021792 6580.9085 4.6318798e+09 0.12863905 0.035681168 -29.812302 38.922949 6583.0884 4.3812697e+09 0.12549241 0.034976938 -29.879046 38.819751 6585.2682 4.1270756e+09 0.12203080 0.033756323 -29.951753 38.704277 6587.4481 3.8586304e+09 0.11866776 0.033257653 -30.024459 38.588803 6589.6280 3.5877542e+09 0.11540635 0.031800131 -30.097166 38.477278 6591.8078 3.3391794e+09 0.11211372 0.028290352 -30.169873 38.366078 6593.9877 3.1035303e+09 0.10946623 0.026183947 -30.240081 38.254870 6596.1676 2.8883000e+09 0.10687066 0.025726512 -30.308521 38.143656 6598.3475 2.6817259e+09 0.10513232 0.025241280 -30.378018 38.031386 6600.5273 2.4952042e+09 0.10477136 0.026073948 -30.450725 37.915910 6602.7072 2.3307791e+09 0.10399356 0.026913146 -30.523431 37.800434 6604.8871 2.1773585e+09 0.10311566 0.026597982 -30.592248 37.688849 6607.0669 2.0350740e+09 0.10190992 0.025574839 -30.660677 37.577650 6609.2468 1.9047989e+09 0.098815747 0.023779241 -30.729107 37.464006 6611.4267 1.7778677e+09 0.096073818 0.024686370 -30.797537 37.348531 6613.6065 1.6600836e+09 0.095044375 0.023796129 -30.865967 37.234053 6615.7864 1.5465887e+09 0.093525878 0.023275727 -30.934396 37.122856 6617.9663 1.4417150e+09 0.092762569 0.023759614 -31.002826 37.011658 6620.1461 1.3523935e+09 0.091908695 0.024814291 -31.061046 36.911522 6622.3260 1.2802763e+09 0.090335068 0.024671220 -31.118070 36.812681 6624.5059 1.2218773e+09 0.088297045 0.025133104 -31.178112 36.710569 6626.6857 1.1564545e+09 0.086273049 0.025717197 -31.246542 36.599369 6628.8656 1.0917816e+09 0.084676656 0.026054544 -31.314972 36.488170 6631.0455 1.0283631e+09 0.082653995 0.025935386 -31.379439 36.373009 6633.2254 9.6233602e+08 0.081049519 0.026191598 -31.443591 36.257534 6635.4052 9.1111006e+08 0.079153889 0.026460557 -31.510266 36.144565 6637.5851 8.5557354e+08 0.077577928 0.025874851 -31.578706 36.033351 6639.7650 8.0908767e+08 0.077008408 0.025354660 -31.646072 35.922140 6641.9448 7.7089404e+08 0.077245553 0.025151509 -31.710226 35.810941 6644.1247 7.2524194e+08 0.076473165 0.025357083 -31.774380 35.699741 6646.3046 6.8966128e+08 0.075753017 0.026077801 -31.838533 35.588543 6648.4844 6.5033820e+08 0.074966203 0.027288568 -31.902686 35.477345 6650.6643 6.1397287e+08 0.074696360 0.026407315 -31.966839 35.363691 6652.8442 5.8621422e+08 0.074515437 0.027482788 -32.030992 35.248216 6655.0240 5.5427375e+08 0.073598330 0.027620151 -32.094136 35.133750 6657.2039 5.2690553e+08 0.071919253 0.029137643 -32.154012 35.022553 6659.3838 5.0044003e+08 0.070627928 0.031754541 -32.213888 34.911355 6661.5637 4.7322555e+08 0.069447084 0.032822029 -32.277603 34.800156 6663.7435 4.5183117e+08 0.068256303 0.032277165 -32.341756 34.688956 6665.9234 4.2969521e+08 0.068335459 0.027034126 -32.405909 34.577757 6668.1033 4.0780752e+08 0.067701938 0.027562150 -32.470062 34.466559 6670.2831 4.1346886e+08 0.067065391 0.027197465 -32.533268 34.355361 6672.4630 3.4823876e+08 0.067224652 0.027147960 -32.593144 34.244162 6674.6429 3.0078923e+08 0.066397394 0.029497089 -32.653019 34.132963 6676.8227 2.6695333e+08 0.064450892 0.032243970 -32.712903 34.017971 6679.0026 2.4895806e+08 0.063835188 0.030265621 -32.772788 33.902478 6681.1825 2.8030207e+08 0.064518194 0.029797347 -32.832667 33.789329 6683.3623 2.6250465e+08 0.065086470 0.031719594 -32.892543 33.678131 6685.5422 2.4607081e+08 0.064812474 0.033277544 -32.952419 33.566934 6687.7221 2.3213742e+08 0.062764814 0.033940190 -33.012297 33.455735 6689.9019 2.1912130e+08 0.060822489 0.033204128 -33.072175 33.344537 6692.0818 2.0717545e+08 0.059995524 0.032670322 -33.132051 33.233338 6694.2617 1.9557184e+08 0.059380889 0.030894262 -33.191927 33.122139 6696.4416 1.8567551e+08 0.059360923 0.029859242 -33.251802 33.010941 6698.6214 1.7791374e+08 0.058450158 0.031070790 -33.311678 32.899743 6700.8013 1.6834424e+08 0.056838446 0.031262058 -33.372262 32.785479 6702.9812 1.5752554e+08 0.056562343 0.033660191 -33.435805 32.658392 6705.1610 1.4480392e+08 0.056874819 0.036954883 -33.498810 32.533642 6707.3409 1.3542341e+08 0.056642649 0.040137993 -33.558685 32.422444 6709.5208 1.2639091e+08 0.055942696 0.040801310 -33.618561 32.311246 6711.7006 1.2125180e+08 0.054037844 0.041489364 -33.674977 32.200047 6713.8805 1.1818658e+08 0.051940343 0.046871220 -33.730575 32.088847 6716.0604 1.1547316e+08 0.050258902 0.048490284 -33.788188 31.977648 6718.2402 1.1119763e+08 0.048148167 0.050186574 -33.848065 31.866451 6720.4201 1.0529553e+08 0.047554182 0.050371089 -33.907375 31.755253 6722.6000 97824937. 0.047133182 0.049863472 -33.962973 31.644055 6724.7798 90164837. 0.043430973 0.043414419 -34.018571 31.532856 6726.9597 83787623. 0.041300853 0.040960023 -34.080482 31.409035 6729.1396 78084944. 0.040956262 0.040952389 -34.144025 31.281949 6731.3195 74425794. 0.039166564 0.042385802 -34.201622 31.166756 6733.4993 71238444. 0.038028952 0.046635289 -34.257222 31.055557 6735.6792 66713842. 0.039027864 0.050014447 -34.312825 30.944351 6737.8591 64619877. 0.040387317 0.056872132 -34.368431 30.833136 6740.0389 62745271. 0.040075976 0.064116870 -34.424259 30.720768 6742.2188 61856093. 0.036703061 0.069143900 -34.482916 30.593681 6744.3987 59054164. 0.025474691 0.078101773 -34.541490 30.467020 6746.5785 55505547. 0.028351220 0.072261119 -34.597088 30.355822 6748.7584 52638372. 0.040576721 0.071006908 -34.652686 30.244623