# # 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 = 41.760893 km # Date (UTC) = 2013-01-29T10:34:28.272 # Date (julian) = 2456321.94060500 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6497.1913 8.9477574e+10 0.030829293 0.031436251 -30.265679 61.256452 6498.9072 8.3965472e+10 0.037069606 0.031953689 -30.481163 61.121774 6500.6232 7.8764017e+10 0.043591187 0.032471127 -30.725818 60.968865 6502.3391 7.3346866e+10 0.050370767 0.032988564 -30.991844 60.802105 6504.0551 6.8027278e+10 0.057464357 0.033506002 -31.201893 60.662072 6505.7710 6.3376025e+10 0.064993806 0.034023440 -31.410876 60.523108 6507.4869 6.0167012e+10 0.073248840 0.034540877 -31.615586 60.388430 6509.2029 5.6419696e+10 0.081763795 0.035058315 -31.837875 60.242187 6510.9188 5.2415513e+10 0.090564882 0.035575753 -32.093779 60.073830 6512.6348 4.8450160e+10 0.099703028 0.036093190 -32.301069 59.929790 6514.3507 4.4927515e+10 0.10932436 0.036610628 -32.500344 59.789772 6516.0667 4.2310377e+10 0.11963852 0.037128066 -32.699668 59.655090 6517.7826 3.9412189e+10 0.13012743 0.037645503 -32.905262 59.514533 6519.4985 3.6331381e+10 0.14075577 0.038162941 -33.147697 59.339440 6521.2145 3.3358865e+10 0.15155994 0.038680379 -33.354510 59.187506 6522.9304 3.0611958e+10 0.15993780 0.039160892 -33.543015 59.047476 6524.6464 2.8483469e+10 0.16659498 0.039656583 -33.731555 58.907417 6526.3623 2.6591327e+10 0.17119913 0.040047919 -33.920103 58.767351 6528.0782 2.4839396e+10 0.17607821 0.041504555 -34.103548 58.632390 6529.7942 2.3236494e+10 0.17959159 0.043500854 -34.286214 58.497224 6531.5101 2.1630937e+10 0.18085684 0.045971177 -34.463946 58.357193 6533.2261 2.0113601e+10 0.18181863 0.047615660 -34.641688 58.215890 6534.9420 1.8755582e+10 0.18184313 0.048208075 -34.819464 58.070438 6536.6580 1.7560841e+10 0.18035257 0.048379189 -34.997239 57.927024 6538.3739 1.6485520e+10 0.17967811 0.049338748 -35.175012 57.786960 6540.0898 1.5415471e+10 0.17927105 0.050896543 -35.349955 57.646912 6541.8058 1.4408707e+10 0.17700933 0.051065222 -35.522304 57.506879 6543.5217 1.3472776e+10 0.17522375 0.051518821 -35.691094 57.366825 6545.2377 1.2627463e+10 0.17400959 0.052457696 -35.858093 57.226761 6546.9536 1.1856140e+10 0.17242080 0.053249188 -36.025094 57.086695 6548.6695 1.1111420e+10 0.17041455 0.053867595 -36.192095 56.946629 6550.3855 1.0414686e+10 0.16924364 0.055081882 -36.359094 56.801432 6552.1014 9.7752702e+09 0.16780369 0.055561237 -36.525052 56.656502 6553.8174 9.2004566e+09 0.16545674 0.054924185 -36.681242 56.516471 6555.5333 8.6407149e+09 0.16360171 0.054405254 -36.838731 56.375141 6557.2493 8.0743533e+09 0.16165545 0.053709874 -37.000344 56.229688 6558.9652 7.5541060e+09 0.15877580 0.052416839 -37.149908 56.095253 6560.6811 7.1538843e+09 0.15602435 0.051660176 -37.280092 55.978538 6562.3971 6.8264432e+09 0.15321531 0.050502067 -37.414326 55.857352 6564.1130 6.5079734e+09 0.14965597 0.048720376 -37.570516 55.711934 6565.8290 6.1628920e+09 0.14679775 0.047377098 -37.725106 55.566506 6567.5449 5.7793212e+09 0.14478553 0.046156456 -37.875944 55.421053 6569.2608 5.4059164e+09 0.14269351 0.044869402 -38.024398 55.277987 6570.9768 5.0649056e+09 0.14123417 0.044512890 -38.169850 55.137923 6572.6927 4.7763401e+09 0.13990130 0.043833447 -38.303715 55.008919 6574.4087 4.5685299e+09 0.13778731 0.042658721 -38.429409 54.887713 6576.1246 4.3958580e+09 0.13562120 0.041227961 -38.560248 54.757820 6577.8406 4.2170506e+09 0.13358504 0.038900063 -38.700281 54.612401 6579.5565 4.0059950e+09 0.13127632 0.036764566 -38.843035 54.466966 6581.2724 3.7821446e+09 0.12916947 0.035514111 -38.988488 54.321514 6582.9884 3.5936930e+09 0.12751239 0.035024828 -39.115380 54.191721 6584.7043 3.4445342e+09 0.12545815 0.034131840 -39.232096 54.070516 6586.4203 3.3079014e+09 0.12324050 0.033165863 -39.356323 53.939170 6588.1362 3.1478024e+09 0.12161982 0.033334444 -39.491002 53.793717 6589.8521 2.9811360e+09 0.11957823 0.031355393 -39.615574 53.664426 6591.5681 2.8312509e+09 0.11699306 0.028560887 -39.732268 53.547734 6593.2840 2.7001799e+09 0.11472791 0.026838158 -39.854966 53.421440 6595.0000 2.5645033e+09 0.11235653 0.025623568 -39.989644 53.275987 6596.7159 2.4300110e+09 0.10961469 0.025724019 -40.111455 53.142115 6598.4319 2.3121250e+09 0.10751368 0.025200982 -40.219192 53.020909 6600.1478 2.2114497e+09 0.10652660 0.025293721 -40.332318 52.893642 6601.8637 2.1060224e+09 0.10540093 0.027452463 -40.461609 52.748190 6603.5797 1.9959947e+09 0.10364109 0.026320104 -40.582415 52.610516 6605.2956 1.9100218e+09 0.10277135 0.026913048 -40.690152 52.484823 6607.0116 1.8324245e+09 0.10139805 0.025684158 -40.801463 52.355854 6608.7275 1.7557665e+09 0.098902194 0.023713136 -40.930724 52.210436 6610.4434 1.6702552e+09 0.096739552 0.024426684 -41.051938 52.072508 6612.1594 1.5836655e+09 0.095299152 0.024201661 -41.155187 51.951302 6613.8753 1.5227467e+09 0.094516672 0.023894752 -41.258070 51.830096 6615.5913 1.4696161e+09 0.093337911 0.023269723 -41.356830 51.708891 6617.3072 1.4209676e+09 0.092462060 0.023541106 -41.455590 51.587686 6619.0232 1.3562626e+09 0.091858649 0.024531502 -41.575825 51.445771 6620.7391 1.2849502e+09 0.091365421 0.025005372 -41.699647 51.300398 6622.4550 1.2191561e+09 0.090328332 0.024636876 -41.798523 51.179084 6624.1710 1.1608792e+09 0.088816559 0.024953836 -41.897262 51.057902 6625.8869 1.1190149e+09 0.087891502 0.026455971 -41.996018 50.933248 6627.6029 1.0745251e+09 0.086237012 0.025549688 -42.094778 50.807554 6629.3188 1.0275941e+09 0.085202782 0.026051463 -42.204249 50.671149 6631.0347 9.7940824e+08 0.083728211 0.025934296 -42.322766 50.525697 6632.7507 9.3542570e+08 0.082658079 0.026122359 -42.424654 50.396874 6634.4666 8.9683774e+08 0.081340850 0.026360881 -42.518924 50.275668 6636.1826 8.6232250e+08 0.079971586 0.026478851 -42.613194 50.154463 6637.8985 8.2830890e+08 0.079095027 0.025721346 -42.707465 50.033257 6639.6145 7.9450524e+08 0.078596814 0.025408453 -42.800696 49.911023 6641.3304 7.7154752e+08 0.078737439 0.025149422 -42.890461 49.785353 6643.0463 7.5071426e+08 0.078227444 0.025199615 -42.980325 49.659599 6644.7623 7.1619233e+08 0.077467843 0.025425992 -43.093413 49.514181 6646.4782 6.8078066e+08 0.076723877 0.026167692 -43.203128 49.372275 6648.1942 6.3845836e+08 0.076258943 0.027094261 -43.292910 49.251070 6649.9101 6.0854276e+08 0.075940333 0.026379147 -43.382692 49.129864 6651.6261 5.9352931e+08 0.075587224 0.026963943 -43.472474 49.004536 6653.3420 5.7244346e+08 0.075377015 0.027700271 -43.562256 48.878842 6655.0579 5.5612799e+08 0.074469813 0.027634155 -43.652038 48.756250 6656.7739 5.3073188e+08 0.073048510 0.028702644 -43.741820 48.635044 6658.4898 5.0197706e+08 0.072087058 0.030929781 -43.829513 48.513850 6660.2058 4.8158424e+08 0.071175240 0.031813023 -43.914788 48.392669 6661.9217 4.6050830e+08 0.070078784 0.033004392 -44.004082 48.264510 6663.6376 4.4166288e+08 0.069138741 0.032306506 -44.106437 48.113670 6665.3536 4.2146454e+08 0.069145058 0.027967769 -44.202326 47.974062 6667.0695 3.9678743e+08 0.068900925 0.027128996 -44.287619 47.852856 6668.7855 3.7628234e+08 0.067976467 0.028165858 -44.372233 47.731651 6670.5014 3.5788320e+08 0.068075058 0.027096337 -44.453037 47.610446 6672.2174 3.4085685e+08 0.067869435 0.027005580 -44.533840 47.489240 6673.9333 3.2773860e+08 0.067190336 0.028855027 -44.618790 47.363889 6675.6492 3.1248915e+08 0.065475131 0.031041881 -44.704082 47.238195 6677.3652 2.9709210e+08 0.064184118 0.031839081 -44.786250 47.115626 6679.0811 2.7600953e+08 0.063743465 0.030200738 -44.867053 46.994420 6680.7971 2.5835711e+08 0.064736454 0.029613535 -44.947849 46.871124 6682.5130 2.4359809e+08 0.065372523 0.030816496 -45.028637 46.745455 6684.2289 2.2913992e+08 0.065566527 0.032665710 -45.109428 46.620860 6685.9449 2.2106221e+08 0.065227576 0.033702870 -45.190232 46.499653 6687.6608 2.0708082e+08 0.063474298 0.033974350 -45.271175 46.378136 6689.3768 1.9499903e+08 0.061573047 0.033676871 -45.362755 46.232684 6691.0927 1.8393986e+08 0.060970354 0.032979389 -45.451945 46.090324 6692.8087 1.7274204e+08 0.060460622 0.031826289 -45.528260 45.964631 6694.5246 1.6676535e+08 0.059885535 0.030525780 -45.604576 45.838937 6696.2405 1.6024915e+08 0.059774171 0.029775723 -45.680889 45.717413 6697.9565 1.5267797e+08 0.059225820 0.030212309 -45.757203 45.596207 6699.6724 1.4784814e+08 0.058013809 0.030969981 -45.833507 45.471871 6701.3884 1.4262133e+08 0.056597237 0.031979283 -45.909807 45.346200 6703.1043 1.3972738e+08 0.056636388 0.033936235 -45.986113 45.222643 6704.8202 1.3800193e+08 0.056791260 0.036580337 -46.062427 45.101437 6706.5362 1.3461206e+08 0.056600711 0.039379596 -46.137638 44.980232 6708.2521 1.3237909e+08 0.056351400 0.040318137 -46.209463 44.859029 6709.9681 1.3110101e+08 0.055450156 0.040516803 -46.281369 44.737744 6711.6840 1.2946544e+08 0.053787149 0.041470451 -46.357685 44.612048 6713.4000 1.3280584e+08 0.052219532 0.045133172 -46.434001 44.486352 6715.1159 1.3147248e+08 0.050781969 0.047497123 -46.506768 44.364205 6716.8318 1.3004334e+08 0.049190102 0.049626580 -46.578593 44.242999 6718.5478 1.2858591e+08 0.047465160 0.050665539 -46.647891 44.119268 6720.2637 1.2264937e+08 0.047253262 0.050389210 -46.715227 43.993575 6721.9797 1.1936805e+08 0.047371205 0.050599076 -46.784062 43.869393 6723.6956 1.1318217e+08 0.045885959 0.049756894 -46.855873 43.748212 6725.4115 1.0964369e+08 0.042366921 0.041318947 -46.927685 43.626548 6727.1275 1.0376493e+08 0.041228024 0.040790536 -46.999512 43.500854 6728.8434 1.0020658e+08 0.041120946 0.040823516 -47.071339 43.375160 6730.5594 98911999. 0.039794573 0.041145869 -47.139216 43.253413 6732.2753 94907124. 0.038615313 0.043790893 -47.206551 43.132208 6733.9913 92396064. 0.037783174 0.049306120 -47.273888 43.011002 6735.7072 85271273. 0.039091905 0.050044174 -47.341225 42.889796 6737.4231 78466642. 0.040107992 0.055483483 -47.408562 42.766686 6739.1391 75105968. 0.040381937 0.062996759 -47.475897 42.640992 6740.8550 70290231. 0.039160788 0.065511020 -47.543232 42.516181 6742.5710 66845081. 0.036158500 0.070002012 -47.610569 42.394975 6744.2869 66632380. 0.032010674 0.078015326 -47.677906 42.273770 6746.0028 62535636. 0.029895353 0.078954176 -47.758276 42.123888 6747.7188 59739800. 0.022595648 0.067113710 -47.837052 41.976406 6749.4347 55485828. 0.0025102271 0.072158903 -47.899898 41.855200 6751.1507 49860495. 0.013756171 0.073775376 -47.962745 41.733995 6752.8666 50657583. 0.047252564 0.073131642 -48.025592 41.612790