# # 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 = 39.041547 km # Date (UTC) = 2010-11-25T09:25:34.796 # Date (julian) = 2455525.89276384 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6501.0603 1.6126304e+11 0.051477223 0.032602948 -22.939463 54.611981 6503.0571 1.3398776e+11 0.059352902 0.033205065 -23.080449 54.501639 6505.0538 1.1482167e+11 0.067482550 0.033807183 -23.197977 54.407617 6507.0506 1.0046369e+11 0.075960155 0.034409300 -23.315506 54.313596 6509.0474 8.8740079e+10 0.084809246 0.035011417 -23.442041 54.209967 6511.0441 7.7828623e+10 0.093903308 0.035613535 -23.576361 54.098033 6513.0409 6.8302752e+10 0.10333375 0.036215652 -23.710681 53.986099 6515.0376 6.0102674e+10 0.11312248 0.036817769 -23.845002 53.874166 6517.0344 5.3180336e+10 0.12333659 0.037419887 -23.978156 53.763203 6519.0312 4.7657622e+10 0.13411807 0.038022004 -24.095685 53.665263 6521.0279 4.3144817e+10 0.14543716 0.038624121 -24.213214 53.567322 6523.0247 3.9291246e+10 0.15436349 0.039185228 -24.334793 53.462150 6525.0214 3.5548117e+10 0.16136468 0.039779769 -24.460158 53.350216 6527.0182 3.2127448e+10 0.16660759 0.040729677 -24.582193 53.242247 6529.0150 2.9285468e+10 0.17040245 0.042259599 -24.695804 53.144307 6531.0117 2.6911266e+10 0.17419510 0.045245722 -24.809415 53.046367 6533.0085 2.4673751e+10 0.17838969 0.047523186 -24.931617 52.938200 6535.0052 2.2396990e+10 0.17995370 0.048222029 -25.056983 52.826266 6537.0020 2.0281460e+10 0.17969202 0.048686163 -25.174554 52.719343 6538.9987 1.8575449e+10 0.17839472 0.049643017 -25.284247 52.617485 6540.9955 1.7172535e+10 0.17676821 0.051324404 -25.393939 52.515626 6542.9923 1.5860699e+10 0.17487008 0.051378956 -25.514210 52.404249 6544.9890 1.4551627e+10 0.17325795 0.052446661 -25.635098 52.292315 6546.9858 1.3369169e+10 0.17110652 0.053275664 -25.745237 52.190335 6548.9825 1.2441930e+10 0.16860179 0.053961066 -25.851012 52.092395 6550.9793 1.1661010e+10 0.16680608 0.055230567 -25.959186 51.992234 6552.9761 1.0852349e+10 0.16543873 0.055341094 -26.080075 51.880299 6554.9728 1.0018134e+10 0.16355602 0.054852794 -26.200963 51.768365 6556.9696 9.2495564e+09 0.16118740 0.053870580 -26.304243 51.665755 6558.9663 8.6294692e+09 0.15819319 0.052415870 -26.406101 51.563898 6560.9631 8.0924997e+09 0.15515296 0.051405958 -26.513382 51.458286 6562.9599 7.5240027e+09 0.15259835 0.049966571 -26.629794 51.346352 6564.9566 6.9505554e+09 0.14996051 0.048338062 -26.744179 51.236365 6566.9534 6.4328309e+09 0.14725360 0.046643567 -26.846037 51.138425 6568.9501 6.0265987e+09 0.14433678 0.044898269 -26.947895 51.040485 6570.9469 5.6456035e+09 0.14195235 0.044525277 -27.055663 50.931710 6572.9436 5.2468992e+09 0.13935493 0.043689755 -27.167597 50.815300 6574.9404 4.8551871e+09 0.13631957 0.042403332 -27.274594 50.705407 6576.9372 4.5151376e+09 0.13276436 0.040292700 -27.372549 50.607452 6578.9339 4.2431545e+09 0.12843927 0.037174844 -27.470504 50.509497 6580.9307 3.9679382e+09 0.12491710 0.035660671 -27.576055 50.396775 6582.9274 3.6904148e+09 0.12238524 0.035041412 -27.683493 50.280382 6584.9242 3.4207640e+09 0.12016947 0.034012066 -27.785553 50.174446 6586.9210 3.1972969e+09 0.11822545 0.033159391 -27.883508 50.076492 6588.9177 3.0149181e+09 0.11629372 0.033073457 -27.981607 49.978257 6590.9145 2.8195756e+09 0.11398740 0.029361002 -28.089061 49.861851 6592.9112 2.6221552e+09 0.11209018 0.027188441 -28.196517 49.745440 6594.9080 2.4343101e+09 0.10990683 0.025674079 -28.290414 49.643464 6596.9048 2.2746442e+09 0.10739878 0.025723160 -28.380520 49.545524 6598.9015 2.1525153e+09 0.10540061 0.024976753 -28.471521 49.446687 6600.8983 2.0490770e+09 0.10509993 0.026836548 -28.565544 49.344828 6602.8950 1.9489238e+09 0.10391534 0.026752853 -28.659567 49.242969 6604.8918 1.8475022e+09 0.10281298 0.026600789 -28.759647 49.134297 6606.8885 1.7389482e+09 0.10150143 0.025907277 -28.862625 49.022363 6608.8853 1.6332388e+09 0.098453935 0.023708964 -28.958168 48.914892 6610.8821 1.5432121e+09 0.095393982 0.024845769 -29.044355 48.813034 6612.8788 1.4635910e+09 0.093978674 0.023664131 -29.130542 48.711177 6614.8756 1.3846566e+09 0.092522275 0.023337252 -29.231680 48.600349 6616.8723 1.2998744e+09 0.090876190 0.023419213 -29.334659 48.488415 6618.8691 1.2165505e+09 0.089937573 0.024427068 -29.426609 48.383099 6620.8659 1.1423015e+09 0.088911807 0.025046219 -29.512796 48.281240 6622.8626 1.0774688e+09 0.087226158 0.024528393 -29.598983 48.179382 6624.8594 1.0282606e+09 0.085414935 0.025322328 -29.685171 48.077525 6626.8561 9.8071715e+08 0.083294851 0.025500111 -29.771358 47.975668 6628.8529 9.3168907e+08 0.082241996 0.026049378 -29.861869 47.868252 6630.8497 8.8031502e+08 0.080956466 0.025930396 -29.955893 47.756318 6632.8464 8.2268698e+08 0.080134053 0.026133836 -30.047424 47.647590 6634.8432 7.7511763e+08 0.079127969 0.026388347 -30.133611 47.545731 6636.8399 7.3470881e+08 0.077977101 0.026223575 -30.219798 47.443873 6638.8367 6.9705911e+08 0.077217557 0.025635190 -30.311986 47.334300 6640.8334 6.5896243e+08 0.078013891 0.025168679 -30.406012 47.222366 6642.8302 6.2169129e+08 0.077942600 0.025185670 -30.493781 47.115794 6644.8270 5.8913220e+08 0.077167874 0.025432983 -30.576050 47.013937 6646.8237 5.6074389e+08 0.076183465 0.026346532 -30.658320 46.912080 6648.8205 5.3485781e+08 0.075151272 0.027513516 -30.747718 46.795967 6650.8172 5.0472122e+08 0.074894775 0.026442326 -30.837266 46.679557 6652.8140 4.7629311e+08 0.074613508 0.027474485 -30.921383 46.574004 6654.8108 4.5075139e+08 0.073608500 0.027690836 -31.003652 46.472145 6656.8075 4.2713932e+08 0.071818991 0.028732169 -31.085163 46.371045 6658.8043 4.0990233e+08 0.070308257 0.031487475 -31.163516 46.273105 6660.8010 3.9419926e+08 0.068975920 0.032354098 -31.241868 46.175165 6662.7978 3.8040570e+08 0.067684769 0.032596663 -31.327395 46.065386 6664.7946 3.6170239e+08 0.066810853 0.029298862 -31.416943 45.948975 6666.7913 3.3921010e+08 0.066391522 0.027062792 -31.500336 45.838488 6668.7881 3.2222764e+08 0.065089784 0.028168158 -31.574782 45.736614 6670.7848 3.0696251e+08 0.064922103 0.026965035 -31.649227 45.634740 6672.7816 2.9170745e+08 0.064491274 0.027332620 -31.736590 45.524262 6674.7783 2.7306144e+08 0.063151142 0.029611376 -31.826137 45.412328 6676.7751 2.5643752e+08 0.060983982 0.032213273 -31.906286 45.306661 6678.7719 2.5163005e+08 0.060188767 0.030420360 -31.980720 45.204804 6680.7686 2.2586017e+08 0.060862068 0.029607394 -32.055891 45.101939 6682.7654 2.0439575e+08 0.061224932 0.031009322 -32.140961 44.985527 6684.7621 1.8944609e+08 0.060868055 0.032692767 -32.226032 44.869115 6686.7589 1.8254317e+08 0.059294719 0.034202623 -32.302213 44.768141 6688.7557 1.8945539e+08 0.056665038 0.033959622 -32.376647 44.670200 6690.7524 1.8317466e+08 0.055402641 0.033029636 -32.452826 44.567029 6692.7492 1.7474771e+08 0.054348759 0.031895358 -32.533418 44.450618 6694.7459 1.6672761e+08 0.053462680 0.030215563 -32.613509 44.334932 6696.7427 1.5777180e+08 0.052807261 0.029984359 -32.684026 44.233075 6698.7395 1.4691225e+08 0.051392374 0.031232798 -32.754543 44.131218 6700.7362 1.3899728e+08 0.049525631 0.031213785 -32.832295 44.022125 6702.7330 1.3264638e+08 0.048754533 0.033462008 -32.917364 43.905712 6704.7297 1.2695782e+08 0.048854168 0.036535888 -32.998596 43.794172 6706.7265 1.2326304e+08 0.048619344 0.039710796 -33.069113 43.696232 6708.7232 1.1726284e+08 0.048097263 0.040831166 -33.139630 43.598292 6710.7200 1.1035500e+08 0.046570792 0.040637427 -33.214128 43.487216 6712.7168 1.0238542e+08 0.044539646 0.043160746 -33.290245 43.370805 6714.7135 95530522. 0.042571029 0.047357051 -33.363686 43.261345 6716.7103 90086083. 0.040833498 0.049447537 -33.434201 43.159487 6718.7070 88438554. 0.039119978 0.050913573 -33.504717 43.057629 6720.7038 88375081. 0.039706052 0.050338219 -33.580413 42.946449 6722.7006 82798699. 0.039069247 0.049739134 -33.656529 42.834516 6724.6973 76139176. 0.035373305 0.044103634 -33.732644 42.719486 6726.6941 69423527. 0.032612415 0.040957627 -33.808758 42.603075 6728.6908 67095784. 0.031946609 0.040607236 -33.880513 42.493332 6730.6876 68754532. 0.030218825 0.041321675 -33.947113 42.391474 6732.6844 66145704. 0.027445163 0.043866196 -34.013713 42.289615 6734.6811 61570267. 0.023639286 0.049312619 -34.088929 42.174578 6736.6779 55256501. 0.016193605 0.052917725 -34.165044 42.058167 6738.6746 52622967. -0.031186174 0.061035222 -34.234763 41.954171 6740.6714 52387168. 0.0075898917 0.065197309 -34.301363 41.856231 6742.6681 52811177. 0.088240916 0.070238811 -34.368566 41.756082