# # 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 = 45.454068 km # Date (UTC) = 2016-01-07T09:45:10.494 # Date (julian) = 2457394.90637146 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6496.1423 1.2852260e+11 0.030528732 0.031119917 -25.623101 50.230463 6498.2965 1.0507552e+11 0.038105080 0.031769517 -25.736209 50.125807 6500.4507 8.4135777e+10 0.045366313 0.032419118 -25.846100 50.024370 6502.6049 7.1537737e+10 0.052916953 0.033068718 -25.955990 49.922932 6504.7591 6.2199065e+10 0.060782820 0.033718318 -26.055225 49.828052 6506.9134 5.6449883e+10 0.069495658 0.034367918 -26.152904 49.734130 6509.0676 5.3018268e+10 0.079244370 0.035017519 -26.253156 49.637734 6511.2218 4.8761647e+10 0.089337806 0.035667119 -26.363046 49.532070 6513.3760 4.4812824e+10 0.10006481 0.036316719 -26.472936 49.426407 6515.5303 4.0902527e+10 0.11131762 0.036966319 -26.582827 49.320743 6517.6845 3.7281475e+10 0.12316332 0.037615920 -26.692717 49.215079 6519.8387 3.4120906e+10 0.13567017 0.038265520 -26.794969 49.115031 6521.9929 3.1541631e+10 0.14891545 0.038915120 -26.888903 49.021097 6524.1472 2.9176034e+10 0.15651027 0.039479238 -26.982837 48.927163 6526.3014 2.6949300e+10 0.16323798 0.039984049 -27.086358 48.823642 6528.4556 2.4657343e+10 0.16972540 0.041803914 -27.192021 48.717979 6530.6098 2.2436108e+10 0.17470545 0.044682443 -27.295777 48.612315 6532.7640 2.0380362e+10 0.17895590 0.047322475 -27.397215 48.506651 6534.9183 1.8529732e+10 0.18048152 0.048201434 -27.497690 48.401989 6537.0725 1.7021196e+10 0.17994007 0.048719405 -27.587855 48.308067 6539.2267 1.5783530e+10 0.17846897 0.049918066 -27.678020 48.214146 6541.3809 1.4737667e+10 0.17629877 0.051202992 -27.772958 48.115251 6543.5352 1.3668559e+10 0.17394431 0.051522350 -27.874395 48.009587 6545.6894 1.2590023e+10 0.17165142 0.052461743 -27.975184 47.904599 6547.8436 1.1653511e+10 0.16997075 0.053608174 -28.065349 47.810677 6549.9978 1.0865168e+10 0.16834174 0.054983153 -28.155514 47.716756 6552.1521 1.0168013e+10 0.16621942 0.055548494 -28.248473 47.618181 6554.3063 9.4784191e+09 0.16365664 0.054838807 -28.345698 47.512501 6556.4605 8.7422109e+09 0.16133413 0.053945423 -28.442924 47.406822 6558.6147 8.0343794e+09 0.15885075 0.052715481 -28.540134 47.301159 6560.7690 7.3759189e+09 0.15593484 0.051581002 -28.637344 47.195495 6562.9232 6.8126737e+09 0.15327523 0.050001470 -28.727381 47.097629 6565.0774 6.3599604e+09 0.15055497 0.048230512 -28.813789 47.003707 6567.2316 5.9633910e+09 0.14787673 0.046421347 -28.900223 46.909739 6569.3858 5.5818352e+09 0.14533121 0.044877537 -28.993196 46.804095 6571.5401 5.1833677e+09 0.14310633 0.044355773 -29.086181 46.698431 6573.6943 4.8132995e+09 0.14016137 0.043100331 -29.174981 46.597849 6575.8485 4.5069260e+09 0.13701252 0.041523384 -29.261389 46.500171 6578.0027 4.2519311e+09 0.13357741 0.038645295 -29.347797 46.402493 6580.1570 4.0016425e+09 0.12984110 0.036375701 -29.440612 46.297033 6582.3112 3.7384299e+09 0.12650386 0.035209114 -29.533596 46.191369 6584.4654 3.4829994e+09 0.12362629 0.034261987 -29.618013 46.092843 6586.6196 3.2721163e+09 0.12125572 0.033163286 -29.696918 45.998909 6588.7739 3.0938580e+09 0.11937650 0.033121501 -29.775824 45.904974 6590.9281 2.9225215e+09 0.11693794 0.029335703 -29.868062 45.799932 6593.0823 2.7403794e+09 0.11492305 0.027025709 -29.961045 45.694268 6595.2365 2.5516816e+09 0.11254264 0.025648099 -30.051573 45.588605 6597.3907 2.3681285e+09 0.11028895 0.025599423 -30.140330 45.482941 6599.5450 2.2140863e+09 0.10900689 0.024962507 -30.226966 45.379803 6601.6992 2.0899170e+09 0.10862539 0.027374969 -30.305861 45.285881 6603.8534 1.9896904e+09 0.10698284 0.026158056 -30.384756 45.191959 6606.0076 1.8884384e+09 0.10640849 0.027490242 -30.469107 45.091541 6608.1619 1.7767431e+09 0.10395934 0.023728092 -30.557864 44.985877 6610.3161 1.6636151e+09 0.10085559 0.024304988 -30.645829 44.879422 6612.4703 1.5493113e+09 0.098910449 0.023969357 -30.730361 44.769531 6614.6245 1.4559611e+09 0.097637333 0.023510217 -30.814892 44.659639 6616.7788 1.3670316e+09 0.096006612 0.023404524 -30.891717 44.562853 6618.9330 1.2964773e+09 0.094969436 0.024475302 -30.966864 44.468919 6621.0872 1.2371870e+09 0.093758166 0.025060544 -31.043512 44.373110 6623.2414 1.1668354e+09 0.091882983 0.024581269 -31.128042 44.267447 6625.3956 1.0984412e+09 0.090207342 0.025869727 -31.212573 44.161783 6627.5499 1.0305682e+09 0.087947298 0.025529216 -31.289647 44.065440 6629.7041 9.7252630e+08 0.086376644 0.025981803 -31.364785 43.971519 6631.8583 9.2292888e+08 0.084404179 0.026017953 -31.441162 43.876047 6634.0125 8.7407102e+08 0.082934246 0.026327757 -31.525693 43.770383 6636.1668 8.3050680e+08 0.081670225 0.026484993 -31.610223 43.664720 6638.3210 7.8431420e+08 0.080940240 0.025657658 -31.691517 43.555818 6640.4752 7.3496465e+08 0.081407998 0.025212510 -31.771822 43.445928 6642.6294 6.8530507e+08 0.081543984 0.025177454 -31.848556 43.342427 6644.7837 6.4322420e+08 0.080798148 0.025428302 -31.919936 43.248505 6646.9379 6.1288116e+08 0.079767208 0.026405622 -31.991316 43.154584 6649.0921 5.8593090e+08 0.078672172 0.027506734 -32.069294 43.051982 6651.2463 5.5535513e+08 0.078445436 0.026672935 -32.149611 42.946302 6653.4005 5.2976454e+08 0.078023338 0.027730165 -32.229923 42.840629 6655.5548 5.0444581e+08 0.076562411 0.027839447 -32.310227 42.734965 6657.7090 4.8026546e+08 0.074987381 0.029723518 -32.390531 42.629302 6659.8632 4.5277481e+08 0.073633858 0.031654531 -32.470836 42.523638 6662.0174 4.2657197e+08 0.072205016 0.033034488 -32.551142 42.417975 6664.1717 4.0860619e+08 0.070934824 0.031577990 -32.623322 42.317426 6666.3259 3.9157697e+08 0.070906685 0.026972098 -32.690945 42.219746 6668.4801 3.7892618e+08 0.069840163 0.027895635 -32.758567 42.122066 6670.6343 3.6005463e+08 0.069584099 0.027034758 -32.834466 42.016572 6672.7886 3.4394867e+08 0.069193908 0.027336659 -32.910544 41.910908 6674.9428 3.2909009e+08 0.067691995 0.029750085 -32.986622 41.805244 6677.0970 3.1534957e+08 0.065490105 0.032220323 -33.062700 41.699581 6679.2512 3.0187672e+08 0.065098298 0.030060172 -33.138778 41.593917 6681.4054 2.8542337e+08 0.066254500 0.029968410 -33.214856 41.488254 6683.5597 2.6951257e+08 0.066915239 0.032008781 -33.290933 41.382590 6685.7139 2.5614508e+08 0.066753495 0.033458883 -33.359573 41.287258 6687.8681 2.5065131e+08 0.064662636 0.033858744 -33.427206 41.193323 6690.0223 2.4312361e+08 0.062832399 0.033113304 -33.495765 41.096815 6692.1766 2.2930293e+08 0.062015719 0.032560299 -33.567617 40.991152 6694.3308 2.1526831e+08 0.061411897 0.030797415 -33.639469 40.885488 6696.4850 2.0426163e+08 0.061343918 0.029877296 -33.711319 40.776218 6698.6392 1.9802386e+08 0.060384844 0.031095234 -33.783170 40.666329 6700.7935 1.9112977e+08 0.058749483 0.031256245 -33.855021 40.558499 6702.9477 1.7745342e+08 0.058484767 0.033633454 -33.926873 40.452836 6705.1019 1.6981545e+08 0.058767152 0.036849764 -33.998725 40.347172 6707.2561 1.6248221e+08 0.058517992 0.040150137 -34.070575 40.241509 6709.4103 1.5583994e+08 0.057868160 0.040871543 -34.142426 40.135845 6711.5646 1.5126411e+08 0.056038883 0.041334558 -34.214278 40.030181 6713.7188 1.3870039e+08 0.054111432 0.046286341 -34.286130 39.924517 6715.8730 1.3339077e+08 0.052448264 0.048271483 -34.357982 39.818853 6718.0272 1.2502637e+08 0.050519266 0.049854836 -34.429832 39.713190 6720.1815 1.1712279e+08 0.049648096 0.050398741 -34.501584 39.607526 6722.3357 1.1077349e+08 0.049553654 0.050190210 -34.569208 39.501863 6724.4899 1.0320945e+08 0.046593124 0.045835615 -34.636833 39.396199 6726.6441 99204686. 0.043944837 0.040957177 -34.704464 39.290525 6728.7984 93980540. 0.043723638 0.040759629 -34.772099 39.184846 6730.9526 92429418. 0.042193161 0.041685003 -34.839731 39.079171 6733.1068 84968218. 0.041284252 0.044504157 -34.907356 38.973507 6735.2610 84479447. 0.041854621 0.049570528 -34.974981 38.867842 6737.4152 82290037. 0.043627594 0.055458344 -35.042605 38.758265 6739.5695 78167306. 0.044143803 0.063523474 -35.110230 38.648374 6741.7237 74287286. 0.042561320 0.067822706 -35.177855 38.540850 6743.8779 69978722. 0.038202461 0.076969838 -35.245479 38.435186 6746.0321 68343928. 0.037051096 0.078613623 -35.313104 38.329523 6748.1864 68666750. 0.033267047 0.067997358 -35.380728 38.223859 6750.3406 67576763. 0.030735408 0.072585695 -35.448353 38.118195 6752.4948 62954218. 0.028227025 0.073561890 -35.512480 38.012532 6754.6490 59936318. 0.026985478 0.075169747 -35.575878 37.906868 6756.8033 59673610. 0.024446491 0.076233802 -35.641229 37.801205 6758.9575 55399840. 0.025454296 0.075730036 -35.708854 37.695540 6761.1117 55649486. 0.026299542 0.077977454 -35.776941 37.588430 6763.2659 51958412. 0.031652596 0.077247642 -35.849397 37.467669 6765.4201 44926074. 0.034238956 0.079607892 -35.921621 37.347295 6767.5744 44610642. 0.032654043 0.081332620 -35.985019 37.241631 6769.7286 40260180. 0.027495907 0.086221421 -36.048418 37.135967 6771.8828 43849250. 0.024076086 0.091446359 -36.111817 37.030304 6774.0370 46814414. 0.021098061 0.096671297 -36.175216 36.924640