# # 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 = 44.844036 km # Date (UTC) = 2012-02-04T10:38:15.959 # Date (julian) = 2455961.94324026 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6501.5570 1.8416263e+11 0.056745396 0.032752710 -22.374793 67.448910 6503.4693 1.5440654e+11 0.065239734 0.033329380 -23.167671 67.158189 6505.3817 1.3110988e+11 0.073917196 0.033906049 -23.755842 66.925613 6507.2941 1.1411141e+11 0.082890255 0.034482719 -24.326530 66.695437 6509.2064 9.9669836e+10 0.092031203 0.035059389 -25.070556 66.388677 6511.1188 8.7858485e+10 0.10146360 0.035636058 -25.617734 66.158560 6513.0312 7.6679339e+10 0.11098274 0.036212728 -26.151867 65.925293 6514.9436 6.9195745e+10 0.12109051 0.036789398 -26.672136 65.685169 6516.8559 6.2647368e+10 0.13147012 0.037366067 -27.189359 65.445005 6518.7683 5.6277416e+10 0.14198995 0.037942737 -27.696495 65.204882 6520.6807 5.0539194e+10 0.15268539 0.038519407 -28.190555 64.964725 6522.5930 4.5285750e+10 0.16188874 0.039072542 -28.670742 64.721492 6524.5054 4.0529246e+10 0.16767576 0.039606504 -29.147844 64.474507 6526.4178 3.6040713e+10 0.17178118 0.040106062 -29.615003 64.231191 6528.3301 3.2623794e+10 0.17608089 0.041704377 -30.036553 64.000802 6530.2425 2.9857935e+10 0.17980444 0.044168191 -30.374287 63.813175 6532.1549 2.7562043e+10 0.18239529 0.046813566 -30.812727 63.564133 6534.0672 2.5690747e+10 0.18262868 0.047963366 -31.253073 63.313937 6535.9796 2.3927445e+10 0.18118068 0.047799349 -31.577551 63.117992 6537.8920 2.2130004e+10 0.18134759 0.049105751 -31.957307 62.887006 6539.8043 2.0452294e+10 0.18018265 0.050617262 -32.367524 62.636874 6541.7167 1.8726497e+10 0.17744793 0.051094106 -32.710824 62.422647 6543.6291 1.7088604e+10 0.17511515 0.051546998 -33.044938 62.206708 6545.5414 1.5886160e+10 0.17304085 0.052460418 -33.403848 61.967435 6547.4538 1.4811394e+10 0.17128811 0.053459942 -33.696549 61.772301 6549.3662 1.3742980e+10 0.16907840 0.054339450 -33.981751 61.577223 6551.2786 1.2769927e+10 0.16708218 0.055333527 -34.322690 61.339462 6553.1909 1.1865624e+10 0.16537907 0.055239094 -34.632164 61.121994 6555.1033 1.1121413e+10 0.16336094 0.054766577 -34.907373 60.926898 6557.0157 1.0576126e+10 0.16078577 0.053856293 -35.177560 60.731762 6558.9280 9.9587291e+09 0.15769912 0.052448512 -35.447667 60.529250 6560.8404 9.2934169e+09 0.15481834 0.051516586 -35.763951 60.288744 6562.7528 8.6471577e+09 0.15231015 0.050163622 -36.053042 60.066511 6564.6651 8.0779136e+09 0.14949958 0.048470160 -36.310776 59.866358 6566.5775 7.6181778e+09 0.14675826 0.046856195 -36.558448 59.671222 6568.4899 7.1687180e+09 0.14437825 0.045321357 -36.806044 59.468692 6570.4022 6.7412613e+09 0.14232057 0.044750889 -37.053690 59.266073 6572.3146 6.3730830e+09 0.13984912 0.044049990 -37.296407 59.065917 6574.2270 6.0414217e+09 0.13666890 0.042745991 -37.528997 58.870840 6576.1393 5.7338206e+09 0.13355560 0.041211008 -37.769131 58.668231 6578.0517 5.4283191e+09 0.13058099 0.038567958 -37.999342 58.465592 6579.9641 5.0785828e+09 0.12792208 0.036540501 -38.226959 58.262974 6581.8764 4.7464873e+09 0.12562089 0.035331209 -38.459520 58.060414 6583.7888 4.4846248e+09 0.12366672 0.034622403 -38.633772 57.898213 6585.7012 4.2957804e+09 0.12176586 0.033410193 -38.824829 57.722654 6587.6136 4.1486305e+09 0.12011963 0.033294309 -39.049893 57.520061 6589.5259 3.9458791e+09 0.11816644 0.032002598 -39.260070 57.309932 6591.4383 3.6914409e+09 0.11595298 0.028707352 -39.475179 57.104835 6593.3507 3.4620003e+09 0.11403600 0.026776215 -39.674208 56.915792 6595.2630 3.2852696e+09 0.11172215 0.025650848 -39.836311 56.753690 6597.1754 3.1536460e+09 0.10929141 0.025667379 -40.030543 56.564476 6599.0878 3.0020278e+09 0.10745181 0.024935009 -40.238143 56.359332 6601.0001 2.8153173e+09 0.10743728 0.027045752 -40.440488 56.149493 6602.9125 2.6367791e+09 0.10651883 0.026737942 -40.596657 55.987319 6604.8249 2.4768874e+09 0.10565309 0.026561056 -40.765949 55.808979 6606.7372 2.3558437e+09 0.10453786 0.026179172 -40.960822 55.599153 6608.6496 2.2522532e+09 0.10176322 0.023715196 -41.116927 55.437038 6610.5620 2.1500101e+09 0.098937691 0.024539932 -41.283708 55.258649 6612.4743 2.0725475e+09 0.097141460 0.023966341 -41.471037 55.048887 6614.3867 2.0048409e+09 0.095791407 0.023674064 -41.621130 54.886780 6616.2991 1.9158024e+09 0.094133403 0.023329239 -41.781444 54.708316 6618.2114 1.8250210e+09 0.093336712 0.023930464 -41.961228 54.498567 6620.1238 1.7252976e+09 0.092535738 0.024807097 -42.105345 54.330432 6622.0362 1.6225347e+09 0.091373980 0.024748361 -42.261780 54.150499 6623.9486 1.5437288e+09 0.089691751 0.024843250 -42.441463 53.948289 6625.8609 1.4730832e+09 0.088978285 0.026424942 -42.585572 53.780165 6627.7733 1.4010010e+09 0.087609051 0.025615520 -42.736909 53.597569 6629.6857 1.3441379e+09 0.086655658 0.025985136 -42.901686 53.388026 6631.5980 1.2776768e+09 0.085277580 0.025991513 -43.039746 53.225950 6633.5104 1.1815147e+09 0.084443681 0.026241363 -43.175732 53.061795 6635.4228 1.1025257e+09 0.083468458 0.026463187 -43.307814 52.893690 6637.3351 1.0506041e+09 0.082402222 0.025997274 -43.439897 52.725585 6639.2475 1.0110497e+09 0.081649903 0.025539613 -43.572476 52.556850 6641.1599 9.6076566e+08 0.082279870 0.025148843 -43.737543 52.346763 6643.0722 8.8016750e+08 0.082163647 0.025203525 -43.876013 52.165316 6644.9846 8.0545155e+08 0.081571073 0.025450021 -44.002092 51.997211 6646.8970 7.8025828e+08 0.080363927 0.026384450 -44.128170 51.829106 6648.8093 7.4730563e+08 0.079262702 0.027506061 -44.254239 51.661014 6650.7217 7.1323299e+08 0.078883735 0.026420457 -44.380287 51.492947 6652.6341 6.7410122e+08 0.078505470 0.027424982 -44.506358 51.324854 6654.5464 5.9534194e+08 0.078013744 0.027803434 -44.632904 51.156081 6656.4588 5.7095941e+08 0.076252841 0.028426118 -44.783008 50.953440 6658.3712 5.4557278e+08 0.074894812 0.030719383 -44.908342 50.774551 6660.2836 5.2560547e+08 0.073575738 0.031883734 -45.022512 50.606485 6662.1959 5.3126562e+08 0.071967548 0.032934348 -45.142588 50.438380 6664.1083 4.9484946e+08 0.070898234 0.031809859 -45.260531 50.270273 6666.0207 4.8445013e+08 0.071001795 0.026912621 -45.374603 50.102164 6667.9330 4.8755094e+08 0.070333824 0.027446175 -45.488655 49.934086 6669.8454 4.8059210e+08 0.069779928 0.027487422 -45.602700 49.766020 6671.7578 4.6114875e+08 0.069753905 0.026876147 -45.716773 49.597914 6673.6701 4.3992733e+08 0.069307635 0.028461450 -45.830846 49.429808 6675.5825 4.2233081e+08 0.067627968 0.030914060 -45.944917 49.261701 6677.4949 4.0652734e+08 0.066333250 0.031654709 -46.054813 49.089466 6679.4072 3.9723387e+08 0.066082827 0.029931248 -46.162856 48.915555 6681.3196 3.7513971e+08 0.067061621 0.029902555 -46.270925 48.747450 6683.2320 3.5386403e+08 0.067646667 0.031528543 -46.378993 48.579344 6685.1443 3.3732581e+08 0.067531660 0.032857300 -46.487061 48.411239 6687.0567 3.2205861e+08 0.066004123 0.034311271 -46.590938 48.243161 6688.9691 3.1146150e+08 0.063465782 0.034008887 -46.692979 48.075093 6690.8814 3.0420018e+08 0.062688646 0.033014849 -46.795044 47.906986 6692.7938 2.9632255e+08 0.061945632 0.031843517 -46.899292 47.738879 6694.7062 2.8718576e+08 0.061321692 0.030271271 -47.007361 47.570774 6696.6186 2.7762329e+08 0.060996766 0.029932782 -47.107048 47.402668 6698.5309 2.6704765e+08 0.060069300 0.030946569 -47.203302 47.234565 6700.4433 2.5536928e+08 0.058610237 0.030996520 -47.305341 47.066497 6702.3557 2.3772474e+08 0.057643487 0.033160726 -47.405189 46.898416 6704.2680 2.2556054e+08 0.057979426 0.036309169 -47.501250 46.730311 6706.1804 2.1560778e+08 0.058018467 0.038760369 -47.589596 46.581842 6708.0928 2.0627225e+08 0.057874848 0.040144595 -47.674647 46.441760 6710.0051 2.0432144e+08 0.056999026 0.040497499 -47.767410 46.282034 6711.9175 1.9714084e+08 0.055285906 0.041736098 -47.863449 46.113964 6713.8299 1.9019813e+08 0.053624582 0.046688085 -47.959510 45.945859 6715.7422 1.8355090e+08 0.052333432 0.048137728 -48.053347 45.775530 6717.6546 1.7103698e+08 0.050763927 0.049833778 -48.143402 45.601420 6719.5670 1.6444253e+08 0.049504004 0.050831171 -48.237690 45.431541 6721.4793 1.6003841e+08 0.050025846 0.050448328 -48.333518 45.263437 6723.3917 1.5746770e+08 0.048939637 0.049587409 -48.423552 45.095372 6725.3041 1.5192179e+08 0.045311596 0.041386076 -48.513594 44.927292 6727.2164 1.4046508e+08 0.044344148 0.040672014 -48.603652 44.759184 6729.1288 1.2973169e+08 0.044334209 0.040959567 -48.683088 44.610902 6731.0412 1.2312361e+08 0.043036649 0.041831993 -48.758131 44.470820 6732.9536 1.2092951e+08 0.042260905 0.043915755 -48.839545 44.310908 6734.8659 1.1889418e+08 0.042468254 0.049301499 -48.923835 44.142840 6736.7783 1.1458126e+08 0.044290564 0.053297382 -49.013892 43.974733 6738.6907 1.0792250e+08 0.045412250 0.061123490 -49.101686 43.806626 6740.6030 1.0367843e+08 0.044989821 0.065080532 -49.185739 43.638521 6742.5154 1.0096036e+08 0.042625295 0.069866612 -49.259824 43.490350 6744.4278 96931843. 0.039152365 0.078124277 -49.329865 43.350268 6746.3401 92288157. 0.037370233 0.075032846 -49.409877 43.190245 6748.2525 87684904. 0.035123213 0.068345321 -49.493913 43.021897 6750.1649 82457623. 0.032901307 0.072285655 -49.577966 42.847789 6752.0772 78187377. 0.030700377 0.074045097 -49.662018 42.675967 6753.9896 74287656. 0.030313305 0.076179839 -49.746071 42.507859 6755.9020 71183197. 0.028774412 0.074209886 -49.830110 42.339781 6757.8143 70029234. 0.028774877 0.074268739 -49.913206 42.173094 6759.7267 68461447. 0.030769717 0.075995322 -49.978245 42.033012 6761.6391 61922968. 0.042406018 0.078021025 -50.043941 41.891515 6763.5514 58043390. 0.038822270 0.078117215 -50.121988 41.723408 6765.4638 55757530. 0.023703051 0.079615865 -50.200037 41.555301