# # 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 = 43.941875 km # Date (UTC) = 2016-01-23T09:13:14.242 # Date (julian) = 2457410.88419262 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6526.3773 2.7344997e+10 0.17573787 0.040063691 -15.724122 54.823233 6528.0748 2.5448660e+10 0.17854269 0.041501848 -15.857345 54.712213 6529.7723 2.3501406e+10 0.18071170 0.043466017 -15.988757 54.602149 6531.4698 2.1635109e+10 0.18138252 0.045912481 -16.099140 54.503185 6533.1673 2.0227837e+10 0.18248425 0.047590679 -16.209523 54.404220 6534.8648 1.8788131e+10 0.18252691 0.048186468 -16.328213 54.297808 6536.5623 1.7249748e+10 0.18102179 0.048293567 -16.456970 54.182371 6538.2597 1.5789718e+10 0.18061858 0.049283161 -16.581295 54.070226 6539.9572 1.4580679e+10 0.18026718 0.050802326 -16.687872 53.971263 6541.6547 1.3698845e+10 0.17791392 0.051114212 -16.794448 53.872300 6543.3522 1.3024545e+10 0.17610223 0.051474329 -16.901025 53.773336 6545.0497 1.2368364e+10 0.17480151 0.052456012 -17.007601 53.674372 6546.7472 1.1652909e+10 0.17256862 0.053079323 -17.114177 53.575407 6548.4447 1.0876857e+10 0.17055929 0.053800434 -17.233350 53.460849 6550.1421 1.0082878e+10 0.16915247 0.055020949 -17.353251 53.345389 6551.8396 9.3579661e+09 0.16704068 0.055530471 -17.461272 53.241368 6553.5371 8.6961824e+09 0.16453206 0.055065071 -17.564042 53.142404 6555.2346 8.1805429e+09 0.16219453 0.054656253 -17.667948 53.042346 6556.9321 7.7086218e+09 0.15939316 0.053876093 -17.787849 52.926886 6558.6296 7.2400920e+09 0.15629951 0.052702842 -17.907751 52.811426 6560.3270 6.6293913e+09 0.15398595 0.051979436 -18.010600 52.709401 6562.0245 6.1633188e+09 0.15161349 0.050856562 -18.109564 52.610436 6563.7220 5.8030545e+09 0.14888076 0.049093162 -18.208527 52.511472 6565.4195 5.4290274e+09 0.14710961 0.047842050 -18.307491 52.412509 6567.1170 5.1976628e+09 0.14521913 0.046518274 -18.406455 52.313546 6568.8145 4.8847647e+09 0.14326592 0.045022971 -18.514656 52.205344 6570.5120 4.6715577e+09 0.14185682 0.044705440 -18.630116 52.089882 6572.2094 4.5414837e+09 0.13995975 0.044110215 -18.739320 51.979504 6573.9069 4.3109400e+09 0.13757472 0.042929697 -18.834477 51.880542 6575.6044 4.1425887e+09 0.13549214 0.041768296 -18.929635 51.781579 6577.3019 3.8751200e+09 0.13351869 0.039746170 -19.024792 51.682616 6578.9994 3.6115039e+09 0.13091625 0.037071479 -19.119950 51.583653 6580.6969 3.4105922e+09 0.12886929 0.035876751 -19.214903 51.484689 6582.3943 3.2506009e+09 0.12687942 0.035186482 -19.306254 51.385725 6584.0918 3.1955212e+09 0.12413889 0.034465486 -19.397606 51.286761 6585.7893 3.0633471e+09 0.12188651 0.033339731 -19.495451 51.178868 6587.4868 2.9353397e+09 0.11994535 0.033266226 -19.602031 51.058965 6589.1843 2.7528218e+09 0.11777362 0.032680366 -19.705951 50.942719 6590.8818 2.6110342e+09 0.11513859 0.029421831 -19.797302 50.843757 6592.5793 2.4005832e+09 0.11313453 0.027510890 -19.888653 50.744794 6594.2767 2.2669697e+09 0.11065117 0.026020605 -19.980004 50.645830 6595.9742 2.2331158e+09 0.10761908 0.025724601 -20.071354 50.546866 6597.6717 2.0544640e+09 0.10634549 0.025510760 -20.162705 50.447901 6599.3692 1.9429571e+09 0.10535165 0.024951936 -20.250554 50.348938 6601.0667 1.8262801e+09 0.10552481 0.027077093 -20.338099 50.249975 6602.7642 1.7690815e+09 0.10471032 0.026864524 -20.429912 50.144886 6604.4617 1.7798002e+09 0.10334530 0.026345390 -20.532030 50.025008 6606.1591 1.7083862e+09 0.10289681 0.027217999 -20.633401 49.905980 6607.8566 1.6097924e+09 0.10129385 0.024015489 -20.717140 49.807016 6609.5541 1.5224507e+09 0.098984379 0.023870527 -20.800879 49.708053 6611.2516 1.4588229e+09 0.096671229 0.024798015 -20.886191 49.609090 6612.9491 1.3868997e+09 0.096002792 0.023611638 -20.973736 49.510125 6614.6466 1.3263270e+09 0.095010212 0.023495037 -21.061280 49.411161 6616.3440 1.2771037e+09 0.093636587 0.023336297 -21.145832 49.309205 6618.0415 1.2226432e+09 0.093150685 0.023802157 -21.229570 49.206435 6619.7390 1.1698669e+09 0.092482066 0.024704227 -21.312703 49.104270 6621.4365 1.1153466e+09 0.091530578 0.024944766 -21.392636 49.005307 6623.1340 1.0578737e+09 0.090259137 0.024541466 -21.472569 48.906344 6624.8315 1.0075037e+09 0.089037240 0.025307392 -21.554525 48.805356 6626.5290 9.5719399e+08 0.087506669 0.025916965 -21.638263 48.702586 6628.2264 9.1449309e+08 0.086287935 0.025795032 -21.722001 48.599816 6629.9239 8.7260883e+08 0.085081777 0.025942056 -21.814349 48.485569 6631.6214 8.2043923e+08 0.083574289 0.025993888 -21.907606 48.370109 6633.3189 7.7390053e+08 0.082567601 0.026207929 -21.992167 48.265414 6635.0164 7.3309395e+08 0.081613386 0.026402244 -22.072098 48.166450 6636.7139 7.0291422e+08 0.080498705 0.026272530 -22.152030 48.067389 6638.4113 6.7703177e+08 0.079892684 0.025653721 -22.231963 47.964618 6640.1088 6.4951541e+08 0.080240800 0.025257336 -22.311896 47.861848 6641.8063 6.2326964e+08 0.080487174 0.025151038 -22.390313 47.760593 6643.5038 5.9470127e+08 0.079998429 0.025268687 -22.466438 47.661631 6645.2013 5.6900756e+08 0.079438711 0.025545981 -22.542563 47.562668 6646.8988 5.4436483e+08 0.078611858 0.026385382 -22.618689 47.460770 6648.5963 5.2467227e+08 0.077788855 0.027363422 -22.694815 47.358000 6650.2937 5.0903015e+08 0.077460241 0.026322483 -22.770941 47.255777 6651.9912 4.9069895e+08 0.077048278 0.027243799 -22.847067 47.156813 6653.6887 4.7345121e+08 0.076592702 0.027877294 -22.923192 47.057848 6655.3862 4.5874610e+08 0.075390927 0.027769794 -22.999318 46.956919 6657.0837 4.4808474e+08 0.073847181 0.028998182 -23.075444 46.854151 6658.7812 4.3674572e+08 0.072546669 0.031446497 -23.151570 46.751382 6660.4787 4.2164443e+08 0.071514562 0.032061070 -23.235032 46.637326 6662.1761 4.1011753e+08 0.070282377 0.032945447 -23.319407 46.521865 6663.8736 3.9473499e+08 0.069086046 0.032241110 -23.396098 46.414492 6665.5711 3.7504387e+08 0.069121219 0.027611350 -23.468418 46.311722 6667.2686 3.6016179e+08 0.068571140 0.027202116 -23.540738 46.208998 6668.9661 3.4291894e+08 0.067389871 0.028325684 -23.613057 46.110027 6670.6636 3.2985262e+08 0.067466462 0.027021214 -23.685376 46.011064 6672.3610 3.2082357e+08 0.067140420 0.027088869 -23.757696 45.910643 6674.0585 3.0492272e+08 0.066419028 0.029004167 -23.830015 45.807873 6675.7560 2.9548080e+08 0.064619096 0.031246408 -23.902335 45.705103 6677.4535 2.8745181e+08 0.063401095 0.031713517 -23.971778 45.605210 6679.1510 2.7386986e+08 0.062892472 0.030143002 -24.040291 45.506245 6680.8485 2.6362550e+08 0.063683571 0.029624637 -24.109294 45.406792 6682.5460 2.4960132e+08 0.064090564 0.030841675 -24.181613 45.304024 6684.2434 2.3919824e+08 0.063974145 0.032666445 -24.253933 45.201255 6685.9409 2.3393897e+08 0.063370386 0.033698688 -24.324345 45.100393 6687.6384 2.2519234e+08 0.061306481 0.033986852 -24.392858 45.001428 6689.3359 2.1931682e+08 0.059070445 0.033713664 -24.461371 44.902463 6691.0334 2.0690570e+08 0.058137617 0.032993387 -24.535972 44.785219 6692.7309 1.9456537e+08 0.057242349 0.031916618 -24.611450 44.665342 6694.4284 1.8567157e+08 0.056326753 0.030660670 -24.682598 44.558468 6696.1258 1.7545421e+08 0.055919560 0.029728068 -24.751111 44.459505 6697.8233 1.7213260e+08 0.055123890 0.030195458 -24.819625 44.360530 6699.5208 1.6776689e+08 0.053721845 0.031109877 -24.888138 44.257793 6701.2183 1.6243685e+08 0.052059760 0.031729741 -24.956651 44.155023 6702.9158 1.5926768e+08 0.051795960 0.033607981 -25.023767 44.053652 6704.6133 1.5129904e+08 0.051672989 0.036478697 -25.088473 43.954689 6706.3107 1.4420515e+08 0.051309715 0.038987232 -25.153180 43.855726 6708.0082 1.3991093e+08 0.050989202 0.040052540 -25.217888 43.753945 6709.7057 1.3196239e+08 0.049907674 0.040683674 -25.282595 43.651174 6711.4032 1.2868115e+08 0.048378561 0.041150964 -25.347302 43.548833 6713.1007 1.2482052e+08 0.046905093 0.044050780 -25.412009 43.449869 6714.7982 1.2070896e+08 0.045355708 0.047363415 -25.476716 43.350905 6716.4957 1.2153376e+08 0.044144920 0.049131414 -25.544505 43.241773 6718.1931 1.1485148e+08 0.042448205 0.050113214 -25.615557 43.121871 6719.8906 1.0724573e+08 0.041499708 0.050523681 -25.685127 43.006864 6721.5881 99917764. 0.041594413 0.050481099 -25.749833 42.907901 6723.2856 94176803. 0.040423524 0.049528225 -25.814540 42.808939 6724.9831 93569672. 0.037075929 0.041717321 -25.876939 42.707667 6726.6806 91327708. 0.035941872 0.040957505 -25.937839 42.604897 6728.3780 90047837. 0.035982159 0.040163919 -25.998740 42.502127 6730.0755 84307329. 0.034763681 0.040482468 -26.059640 42.403085 6731.7730 81359353. 0.033567758 0.043288475 -26.120541 42.304122 6733.4705 78502467. 0.032886484 0.046478808 -26.181441 42.203819 6735.1680 77386106. 0.033602062 0.049471764 -26.242342 42.101048 6736.8655 78126110. 0.035195461 0.053626979 -26.303243 41.998278 6738.5630 75436164. 0.035743933 0.060420435 -26.371503 41.886308 6740.2604 72785797. 0.034972859 0.064495284 -26.442556 41.770846 6741.9579 65860888. 0.032088164 0.068490758 -26.508806 41.663189 6743.6554 65397692. 0.027640602 0.075468837 -26.569707 41.564226 6745.3529 62186119. 0.024343577 0.078715242 -26.630607 41.465263 6747.0504 59135670. 0.017073234 0.067343816 -26.688289 41.363080 6748.7479 55080176. 0.012076456 0.070951456 -26.745384 41.260310 6750.4454 49112325. -0.0032329566 0.072764589 -26.802479 41.158372 6752.1428 51279599. -0.060587910 0.073969187 -26.859573 41.059408 6753.8403 51920568. -0.015381397 0.075696725 -26.916667 40.960443 6755.5378 51496894. 0.078312116 0.074369551 -26.979389 40.849099