# # 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 = 45.235507 km # Date (UTC) = 2015-12-06T09:12:45.246 # Date (julian) = 2457362.88385702 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6491.2633 1.2466803e+11 0.017513009 0.029648674 -15.254791 54.708176 6493.2262 1.1620490e+11 0.023026931 0.030240603 -15.367761 54.629438 6495.1892 1.0799326e+11 0.028508260 0.030832531 -15.480731 54.550701 6497.1522 1.0080684e+11 0.034085211 0.031424459 -15.593700 54.471965 6499.1152 9.6697715e+10 0.040089712 0.032016387 -15.706670 54.393229 6501.0781 8.9424356e+10 0.046317951 0.032608315 -15.817227 54.314492 6503.0411 8.0375874e+10 0.052678815 0.033200243 -15.926774 54.235755 6505.0041 7.1269599e+10 0.059302295 0.033792172 -16.036320 54.157019 6506.9670 6.3985251e+10 0.066649480 0.034384100 -16.156601 54.067548 6508.9300 6.0214817e+10 0.075564524 0.034976028 -16.279843 53.975118 6510.8930 5.6401879e+10 0.085388097 0.035567956 -16.399881 53.885250 6512.8559 5.1847666e+10 0.095760828 0.036159884 -16.506019 53.806502 6514.8189 4.7491805e+10 0.10693973 0.036751812 -16.612156 53.727754 6516.7819 4.3266835e+10 0.11886762 0.037343741 -16.718290 53.649009 6518.7448 3.9615717e+10 0.13160552 0.037935669 -16.824413 53.570273 6520.7078 3.6566971e+10 0.14508190 0.038527597 -16.930536 53.491536 6522.6708 3.3884994e+10 0.15712038 0.039092904 -17.035477 53.412800 6524.6338 3.1541142e+10 0.16598653 0.039652105 -17.138176 53.334063 6526.5967 2.9500135e+10 0.17243254 0.040293684 -17.240876 53.255327 6528.5597 2.7458294e+10 0.17705262 0.041886490 -17.349024 53.170780 6530.5227 2.5262574e+10 0.17991401 0.044560417 -17.464564 53.078349 6532.4856 2.3190255e+10 0.18158975 0.047089887 -17.580104 52.985918 6534.4486 2.1317083e+10 0.18114062 0.048070049 -17.685026 52.904815 6536.4116 1.9684546e+10 0.17953263 0.048158745 -17.787739 52.826068 6538.3745 1.8144519e+10 0.17902848 0.049339063 -17.890452 52.747322 6540.3375 1.6627236e+10 0.17807332 0.051013551 -17.990048 52.665478 6542.3005 1.5356565e+10 0.17580164 0.051116317 -18.089325 52.583318 6544.2634 1.4286704e+10 0.17374527 0.051858062 -18.188602 52.501157 6546.2264 1.3293720e+10 0.17159508 0.052650832 -18.287879 52.422372 6548.1894 1.2443507e+10 0.17020962 0.053724203 -18.387155 52.343636 6550.1524 1.1576952e+10 0.16879521 0.055023508 -18.487235 52.264013 6552.1153 1.0732194e+10 0.16699168 0.055557739 -18.598923 52.171580 6554.0783 9.8227329e+09 0.16454946 0.054834023 -18.710612 52.079148 6556.0413 8.9211011e+09 0.16240016 0.054007059 -18.814885 51.993129 6558.0042 8.3417476e+09 0.16046264 0.053235697 -18.910738 51.914393 6559.9672 7.8662237e+09 0.15771672 0.052278011 -19.006591 51.835656 6561.9302 7.3042131e+09 0.15453119 0.050914313 -19.100577 51.755041 6563.8931 6.8106401e+09 0.15104392 0.048895209 -19.193020 51.672871 6565.8561 6.3824368e+09 0.14814334 0.047346273 -19.285462 51.590701 6567.8191 6.1180683e+09 0.14545650 0.045924635 -19.380041 51.508537 6569.7820 5.8313663e+09 0.14280024 0.044903324 -19.475895 51.426376 6571.7450 5.4249043e+09 0.14047163 0.044299796 -19.571748 51.344216 6573.7080 5.0918551e+09 0.13797256 0.043089339 -19.673337 51.257528 6575.6710 4.8378427e+09 0.13591007 0.041701528 -19.777323 51.168948 6577.6339 4.5646609e+09 0.13380933 0.039224629 -19.879679 51.081066 6579.5969 4.2183626e+09 0.13163326 0.036742358 -19.968685 50.998906 6581.5599 3.8895993e+09 0.12975429 0.035427074 -20.057691 50.916745 6583.5228 3.6437936e+09 0.12802424 0.034757032 -20.147342 50.834583 6585.4858 3.4969111e+09 0.12604586 0.033582385 -20.239784 50.752413 6587.4488 3.3690165e+09 0.12419051 0.033257800 -20.332227 50.670242 6589.4117 3.2511290e+09 0.12200073 0.032229120 -20.423752 50.588075 6591.3747 3.1444620e+09 0.11927677 0.028779093 -20.512759 50.505915 6593.3377 2.9821937e+09 0.11707302 0.026788281 -20.601765 50.423754 6595.3006 2.8241874e+09 0.11452685 0.025654749 -20.693288 50.339374 6597.2636 2.6382147e+09 0.11217992 0.025639539 -20.789571 50.250794 6599.2266 2.4696003e+09 0.11043996 0.024943358 -20.885853 50.162214 6601.1896 2.3551343e+09 0.10995733 0.027134960 -20.976685 50.078445 6603.1525 2.2228201e+09 0.10861522 0.026572979 -21.065691 49.996286 6605.1155 2.1284259e+09 0.10745864 0.026761934 -21.154698 49.914126 6607.0785 2.0147072e+09 0.10581932 0.025552058 -21.240870 49.831966 6609.0414 1.9232150e+09 0.10243957 0.023718239 -21.326453 49.749806 6611.0044 1.8319483e+09 0.099196269 0.024955648 -21.412037 49.667645 6612.9674 1.7389360e+09 0.097849854 0.023597969 -21.507337 49.576156 6614.9303 1.6454801e+09 0.096471012 0.023299524 -21.603634 49.483710 6616.8933 1.5452021e+09 0.095168269 0.023422504 -21.695537 49.394462 6618.8563 1.4579134e+09 0.094743723 0.024417388 -21.777696 49.312303 6620.8192 1.3818363e+09 0.094331904 0.025031200 -21.859856 49.230144 6622.7822 1.3194103e+09 0.093252936 0.024549792 -21.942016 49.147984 6624.7452 1.2606834e+09 0.092006315 0.025261205 -22.024176 49.065823 6626.7082 1.2068585e+09 0.090438266 0.025688646 -22.106336 48.983663 6628.6711 1.1522159e+09 0.089426742 0.025975579 -22.193308 48.896690 6630.6341 1.0921038e+09 0.088144992 0.025929864 -22.285740 48.804260 6632.5971 1.0328633e+09 0.086969687 0.026103938 -22.378171 48.711829 6634.5600 9.7803433e+08 0.085739347 0.026367694 -22.461645 48.628354 6636.5230 9.2308080e+08 0.084470221 0.026346649 -22.543805 48.546194 6638.4860 8.8196554e+08 0.083529688 0.025650470 -22.625965 48.464034 6640.4489 8.3622740e+08 0.083823232 0.025215723 -22.704880 48.381864 6642.4119 8.0072321e+08 0.083643369 0.025168552 -22.783628 48.299693 6644.3749 7.7073578e+08 0.082537967 0.025384123 -22.862672 48.217213 6646.3378 7.3395910e+08 0.081476609 0.026095029 -22.951252 48.124781 6648.3008 6.9207381e+08 0.080496123 0.027165653 -23.039832 48.032349 6650.2638 6.4498858e+08 0.079940734 0.026315625 -23.124143 47.944372 6652.2268 6.0997738e+08 0.079354653 0.027312911 -23.202880 47.862213 6654.1897 5.8610569e+08 0.078413860 0.027955401 -23.281616 47.780054 6656.1527 5.6683437e+08 0.076521525 0.028157437 -23.363424 47.692630 6658.1157 5.4246675e+08 0.075146958 0.030266212 -23.448153 47.600198 6660.0786 5.1022345e+08 0.073968097 0.031697471 -23.532882 47.507766 6662.0416 4.7588168e+08 0.072828122 0.033020930 -23.608986 47.424742 6664.0046 4.5403468e+08 0.071716953 0.032189359 -23.684300 47.342581 6665.9675 4.3550273e+08 0.071983798 0.026961780 -23.759646 47.260385 6667.9305 4.2071057e+08 0.071409219 0.027445250 -23.844306 47.168029 6669.8935 4.0280290e+08 0.070880122 0.027438037 -23.929047 47.075585 6671.8564 3.7839200e+08 0.070802774 0.026877554 -24.010029 46.987241 6673.8194 3.5876902e+08 0.070214700 0.028684718 -24.085343 46.905081 6675.7824 3.4082967e+08 0.068305713 0.031296916 -24.160656 46.822920 6677.7454 3.2668148e+08 0.067148284 0.031298616 -24.238627 46.735855 6679.7083 3.1223652e+08 0.067082031 0.029682443 -24.319504 46.643424 6681.6713 2.9791008e+08 0.067826251 0.030172365 -24.400381 46.550994 6683.6343 2.8444366e+08 0.068111658 0.032118102 -24.476356 46.467612 6685.5972 2.7548443e+08 0.067663350 0.033335663 -24.551669 46.385451 6687.5602 2.6656229e+08 0.065604714 0.034030469 -24.626983 46.303290 6689.5232 2.5811143e+08 0.063290431 0.033545085 -24.703940 46.211271 6691.4861 2.4938075e+08 0.062278283 0.032886566 -24.780967 46.118840 6693.4491 2.3958844e+08 0.061359917 0.031450016 -24.856130 46.030138 6695.4121 2.3215494e+08 0.060896671 0.029783780 -24.928030 45.947967 6697.3750 2.2271254e+08 0.060166083 0.030138728 -24.999930 45.865796 6699.3380 2.1385177e+08 0.058752581 0.031278538 -25.075803 45.779083 6701.3010 2.0401105e+08 0.057014551 0.031851080 -25.156680 45.686652 6703.2640 1.9816067e+08 0.056908546 0.034335739 -25.237558 45.594222 6705.2269 1.9133827e+08 0.057032879 0.037072035 -25.315176 45.501790 6707.1899 1.8318808e+08 0.056695018 0.040159624 -25.392203 45.409358 6709.1529 1.7537178e+08 0.056090683 0.041035314 -25.467092 45.318636 6711.1158 1.6716148e+08 0.054487868 0.040824020 -25.535559 45.233052 6713.0788 1.5894111e+08 0.052693560 0.043971638 -25.604025 45.147468 6715.0418 1.5446573e+08 0.050918572 0.047421312 -25.675304 45.059635 6717.0047 1.5126603e+08 0.049079865 0.049873975 -25.752330 44.967203 6718.9677 1.4379854e+08 0.046921802 0.051319550 -25.829357 44.874771 6720.9307 1.3829313e+08 0.047418128 0.050311931 -25.903564 44.782340 6722.8936 1.3092824e+08 0.046604155 0.049500421 -25.976739 44.689910 6724.8566 1.2406443e+08 0.042890275 0.042773350 -26.049277 44.598869 6726.8196 1.1958770e+08 0.041136796 0.040958759 -26.117752 44.516698 6728.7826 1.1430203e+08 0.040944631 0.040737239 -26.186228 44.434526 6730.7455 1.1215497e+08 0.039536297 0.041401110 -26.255712 44.350152 6732.7085 1.0973099e+08 0.038516654 0.043870641 -26.328888 44.257721 6734.6715 1.0808034e+08 0.038461092 0.049313199 -26.402063 44.165290 6736.6344 1.0133376e+08 0.040155219 0.052753520 -26.475238 44.072858 6738.5974 93070587. 0.041101421 0.060610069 -26.548413 43.980426 6740.5604 90031775. 0.040634942 0.065007661 -26.621588 43.887994 6742.5233 85526437. 0.038134714 0.069885971 -26.694762 43.795564 6744.4863 85864865. 0.034653092 0.078169561 -26.767937 43.703133 6746.4493 84101173. 0.032371025 0.073763898 -26.839474 43.609065 6748.4122 77520911. 0.030382979 0.069185756 -26.908797 43.512782 6750.3752 73217300. 0.027878181 0.072644832 -26.978121 43.416500 6752.3382 69205606. 0.025351183 0.073743130 -27.050636 43.323408 6754.3012 67557689. 0.024357120 0.075729174 -27.123811 43.230976 6756.2641 63163243. 0.021998856 0.074846544 -27.196092 43.138544 6758.2271 57424273. 0.021608807 0.074185546 -27.265416 43.046111 6760.1901 54311661. 0.021772844 0.076423715 -27.334740 42.953679 6762.1530 54355702. 0.025038598 0.077803989 -27.404064 42.861248 6764.1160 53659458. 0.026553882 0.079488843 -27.473388 42.768817 6766.0790 49390881. 0.024224127 0.079892384 -27.542711 42.676387 6768.0419 46040683. -0.00031574692 0.081006940 -27.612034 42.583955 6770.0049 46083088. 0.012695389 0.086891611 -27.681357 42.491523 6771.9679 49942370. 0.044199534 0.091652674 -27.748980 42.399085