# # 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 = 51.649949 km # Date (UTC) = 2015-01-06T10:14:06.981 # Date (julian) = 2457028.92646969 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6495.5873 1.0315973e+11 0.030050541 0.030952559 -33.172981 49.945213 6497.5836 8.6916407e+10 0.036546023 0.031554547 -33.270606 49.855019 6499.5799 7.6836268e+10 0.043124514 0.032156535 -33.364619 49.771451 6501.5762 6.9016091e+10 0.049898382 0.032758523 -33.458633 49.687884 6503.5726 6.2730828e+10 0.056979710 0.033360511 -33.555249 49.594753 6505.5689 5.6783047e+10 0.064332820 0.033962498 -33.653168 49.496834 6507.5652 5.1842803e+10 0.072171515 0.034564486 -33.751530 49.398915 6509.5616 4.6964060e+10 0.080337007 0.035166474 -33.853365 49.300996 6511.5579 4.2702916e+10 0.089035709 0.035768462 -33.955200 49.203077 6513.5542 3.8914686e+10 0.098316280 0.036370450 -34.048748 49.111252 6515.5506 3.5864977e+10 0.10841074 0.036972438 -34.135786 49.024214 6517.5469 3.3677043e+10 0.11950170 0.037574426 -34.222824 48.937176 6519.5432 3.1862022e+10 0.13137596 0.038176414 -34.317345 48.842655 6521.5395 2.9929920e+10 0.14370421 0.038778401 -34.415264 48.744736 6523.5359 2.8399557e+10 0.15236807 0.039311927 -34.513183 48.646817 6525.5322 2.5628216e+10 0.15891158 0.039721476 -34.611102 48.548898 6527.5285 2.2589516e+10 0.16492744 0.041100191 -34.709021 48.450978 6529.5249 2.0013312e+10 0.16977116 0.043071842 -34.798595 48.359380 6531.5212 1.8100768e+10 0.17370160 0.045987278 -34.882163 48.272331 6533.5175 1.7750083e+10 0.17664572 0.047739517 -34.965731 48.185282 6535.5138 1.7103225e+10 0.17676267 0.048001391 -35.056702 48.090520 6537.5102 1.6117975e+10 0.17646027 0.048925753 -35.150703 47.992601 6539.5065 1.4906083e+10 0.17531321 0.050256744 -35.243071 47.896384 6541.5028 1.3692505e+10 0.17325718 0.051163463 -35.326628 47.809346 6543.4992 1.2699130e+10 0.17136961 0.051512902 -35.410185 47.722308 6545.4955 1.1891091e+10 0.16977617 0.052460006 -35.495596 47.632179 6547.4918 1.1146091e+10 0.16844131 0.053474397 -35.585682 47.534260 6549.4882 1.0341550e+10 0.16684596 0.054463750 -35.675767 47.436341 6551.4845 9.5880869e+09 0.16546483 0.055405813 -35.768715 47.338422 6553.4808 8.8724390e+09 0.16402583 0.055093368 -35.862716 47.240503 6555.4771 8.2953953e+09 0.16247878 0.054452449 -35.954241 47.144519 6557.4735 7.8556656e+09 0.16083845 0.053569332 -36.034315 47.057481 6559.4698 7.4338306e+09 0.15857360 0.052334154 -36.114390 46.970444 6561.4661 7.0677771e+09 0.15607242 0.051142981 -36.196330 46.880077 6563.4625 6.5655885e+09 0.15385689 0.049393404 -36.282513 46.782143 6565.4588 6.0784135e+09 0.15197725 0.047797433 -36.368695 46.684209 6567.4551 5.6489419e+09 0.15038137 0.046232371 -36.447659 46.594478 6569.4515 5.3574753e+09 0.14848122 0.044881807 -36.524252 46.507440 6571.4478 5.1998384e+09 0.14642783 0.044380978 -36.600846 46.420403 6573.4441 5.0144513e+09 0.14385598 0.043301094 -36.689319 46.320336 6575.4404 4.7966093e+09 0.14129886 0.041932809 -36.779404 46.218501 6577.4368 4.4362089e+09 0.13903264 0.039534314 -36.866925 46.117947 6579.4331 4.0933564e+09 0.13674197 0.036832404 -36.949177 46.020029 6581.4294 3.8039934e+09 0.13503140 0.035466572 -37.031429 45.922110 6583.4258 3.6236354e+09 0.13348247 0.034806167 -37.109300 45.832615 6585.4221 3.5356997e+09 0.13157149 0.033633324 -37.185893 45.745577 6587.4184 3.4281999e+09 0.12987173 0.033251074 -37.262487 45.658539 6589.4147 3.3836996e+09 0.12761916 0.032223159 -37.344184 45.561688 6591.4111 3.1783490e+09 0.12546669 0.028738059 -37.426435 45.463769 6593.4074 2.8864247e+09 0.12401961 0.026723458 -37.505502 45.369641 6595.4037 2.5476296e+09 0.12266444 0.025665440 -37.578623 45.282592 6597.4001 2.3116578e+09 0.12125111 0.025596482 -37.651744 45.195543 6599.3964 2.3047653e+09 0.11927366 0.024953571 -37.729220 45.103310 6601.3927 2.3241623e+09 0.11829763 0.027230640 -37.811473 45.005391 6603.3891 2.3106404e+09 0.11648438 0.026432956 -37.893726 44.907472 6605.3854 2.1982945e+09 0.11574299 0.026988348 -37.975978 44.805934 6607.3817 2.0769601e+09 0.11410312 0.024953259 -38.058230 44.704098 6609.3780 1.9733065e+09 0.11103027 0.023818227 -38.135804 44.607745 6611.3744 1.8928793e+09 0.10807446 0.024719718 -38.205435 44.520707 6613.3707 1.8243212e+09 0.10670460 0.023709601 -38.275065 44.433669 6615.3670 1.7668542e+09 0.10487387 0.023262824 -38.349032 44.341210 6617.3634 1.6928747e+09 0.10332734 0.023559720 -38.427366 44.243291 6619.3597 1.6048611e+09 0.10232729 0.024612701 -38.505700 44.145372 6621.3560 1.5262805e+09 0.10124231 0.024971443 -38.575817 44.057726 6623.3523 1.4675398e+09 0.099664397 0.024622365 -38.645457 43.970677 6625.3487 1.4321086e+09 0.098468188 0.025813680 -38.715733 43.882832 6627.3450 1.3926979e+09 0.096637019 0.025450081 -38.794069 43.784913 6629.3413 1.3368881e+09 0.095701540 0.026047390 -38.872404 43.686994 6631.3377 1.2707897e+09 0.094273316 0.025965066 -38.950740 43.589075 6633.3340 1.1986249e+09 0.093284149 0.026210565 -39.029075 43.491156 6635.3303 1.1263619e+09 0.092191575 0.026449325 -39.107410 43.393237 6637.3267 1.0642576e+09 0.091120735 0.026001427 -39.173962 43.302473 6639.3230 1.0164989e+09 0.090439710 0.025512633 -39.240110 43.211954 6641.3193 9.8584894e+08 0.090818559 0.025149385 -39.307041 43.120735 6643.3156 9.5339516e+08 0.090120909 0.025240277 -39.381461 43.022816 6645.3120 9.1574086e+08 0.089108138 0.025597832 -39.455880 42.924897 6647.3083 8.7692637e+08 0.087951600 0.026600102 -39.530299 42.826978 6649.3046 8.3156723e+08 0.086889537 0.027213769 -39.604717 42.729059 6651.3010 7.9426591e+08 0.086400844 0.026714808 -39.679134 42.631140 6653.2973 7.5744069e+08 0.085866296 0.027677447 -39.749682 42.533221 6655.2936 7.1837114e+08 0.084483225 0.027731540 -39.820184 42.435303 6657.2899 6.8544412e+08 0.082661274 0.029237443 -39.888794 42.342114 6659.2863 6.5282471e+08 0.081077895 0.031774881 -39.954951 42.255065 6661.2826 6.2853683e+08 0.079554673 0.032678888 -40.021108 42.168016 6663.2789 6.0919762e+08 0.078142863 0.032405912 -40.089713 42.072637 6665.2753 5.9044678e+08 0.077557816 0.028096096 -40.160215 41.970800 6667.2716 5.6581819e+08 0.077094081 0.027203220 -40.230717 41.869011 6669.2679 5.4105133e+08 0.076164971 0.028080524 -40.301219 41.771084 6671.2643 5.1698466e+08 0.076342756 0.026869114 -40.371720 41.673165 6673.2606 4.9076845e+08 0.076054702 0.027848941 -40.442222 41.575246 6675.2569 4.6877004e+08 0.074536571 0.030290442 -40.512724 41.477327 6677.2532 4.4319903e+08 0.072888752 0.031998206 -40.583226 41.379408 6679.2496 4.2146138e+08 0.072556614 0.030061535 -40.646646 41.291325 6681.2459 4.0379675e+08 0.073515537 0.029846011 -40.709313 41.204287 6683.2422 3.9137662e+08 0.073921881 0.031543575 -40.772104 41.116906 6685.2386 3.7723177e+08 0.073621486 0.032956818 -40.838688 41.018986 6687.2349 3.6321488e+08 0.071788674 0.034211899 -40.905273 40.921067 6689.2312 3.4942831e+08 0.069208849 0.033807889 -40.973732 40.823147 6691.2276 3.3231392e+08 0.068307005 0.032947576 -41.044234 40.725228 6693.2239 3.1896356e+08 0.067408597 0.031527284 -41.114735 40.627310 6695.2202 3.0458577e+08 0.066844150 0.029819024 -41.181623 40.529377 6697.2165 2.9294656e+08 0.066106403 0.030118669 -41.248218 40.431443 6699.2129 2.8245528e+08 0.064635913 0.031394016 -41.314810 40.332056 6701.2092 2.7275543e+08 0.062720503 0.031716399 -41.381394 40.230221 6703.2055 2.6269215e+08 0.062349979 0.034189529 -41.447978 40.128386 6705.2019 2.5103717e+08 0.062216202 0.037027467 -41.514563 40.029760 6707.1982 2.4059191e+08 0.061585559 0.040158436 -41.581149 39.931841 6709.1945 2.3220573e+08 0.060677931 0.041008822 -41.645764 39.836820 6711.1908 2.2797938e+08 0.058762526 0.040909362 -41.704949 39.749782 6713.1872 2.2431980e+08 0.056693814 0.044363595 -41.764134 39.662744 6715.1835 2.1767229e+08 0.054698254 0.047566271 -41.824692 39.571419 6717.1798 2.0895101e+08 0.052566989 0.049863145 -41.887360 39.473500 6719.1762 1.9919597e+08 0.050298374 0.051202471 -41.950028 39.375581 6721.1725 1.9467375e+08 0.050455497 0.050355872 -42.012696 39.277662 6723.1688 1.9133865e+08 0.049053938 0.049463099 -42.075364 39.179743 6725.1652 1.8754169e+08 0.044710778 0.041472858 -42.139159 39.081824 6727.1615 1.8036764e+08 0.042948240 0.040745247 -42.205745 38.983905 6729.1578 1.7035190e+08 0.042151148 0.040940243 -42.272331 38.885986 6731.1541 1.6427361e+08 0.040072439 0.042056792 -42.336039 38.788067 6733.1505 1.5764950e+08 0.038578663 0.044741250 -42.398707 38.690147 6735.1468 1.5424442e+08 0.038499878 0.049449270 -42.460666 38.592225 6737.1431 1.5039873e+08 0.039622553 0.054591505 -42.519425 38.494292 6739.1395 1.4815931e+08 0.039833598 0.062997222 -42.578184 38.396358 6741.1358 1.4618934e+08 0.038306228 0.066145965 -42.639401 38.295970 6743.1321 1.4338086e+08 0.034480018 0.071938699 -42.702069 38.194134 6745.1284 1.3728143e+08 0.031129609 0.078620884 -42.765415 38.091536 6747.1248 1.2762260e+08 0.025865239 0.067318205 -42.837037 37.979626 6749.1211 1.1804134e+08 0.024931591 0.072244774 -42.908659 37.867716 6751.1174 1.0937951e+08 0.021297388 0.073761323 -42.969449 37.767582 6753.1138 1.0481241e+08 0.018285419 0.073345452 -43.028200 37.669663 6755.1101 1.0368098e+08 0.016401165 0.074557076 -43.088083 37.571744 6757.1064 1.0042664e+08 0.013696157 0.076417089 -43.150751 37.473824 6759.1028 94874809. 0.014098187 0.075844750 -43.213419 37.375905 6761.0991 90746659. 0.014257585 0.077976411 -43.273208 37.277986 6763.0954 86282004. 0.018667855 0.076728343 -43.331960 37.180067 6765.0917 83970508. 0.020647083 0.079547941 -43.390711 37.082148 6767.0881 81518515. 0.020029422 0.081877149 -43.449462 36.984229 6769.0844 77236266. 0.014861360 0.084658969 -43.508212 36.886310 6771.0807 76400518. 0.011182904 0.089500946 -43.566964 36.788391 6773.0771 76933987. 0.0077331427 0.094342923 -43.625715 36.690472 6775.0734 73983128. 0.0035565093 0.099184899 -43.684765 36.591490 6777.0697 72353367. -0.00045963893 0.10402688 -43.747434 36.479580 6779.0660 68776270. -0.0050716418 0.10886885 -43.810104 36.367670 6781.0624 66761948. -0.0095386494 0.11371083 -43.869474 36.267541 6783.0587 64079000. -0.014492910 0.11855281 -43.928227 36.169622 6785.0550 59065492. -0.020773167 0.12339478 -43.985847 36.071702 6787.0514 57782073. -0.026507852 0.12823676 -44.040681 35.973784 6789.0477 54408511. -0.034380438 0.13307874 -44.095516 35.875865 6791.0440 53902243. -0.042850848 0.13792071 -44.159409 35.767651 6793.0404 50139927. -0.059298957 0.14276269 -44.226553 35.655741 6795.0367 48441733. -0.11992885 0.14760467 -44.287524 35.550846 6797.0330 49889571. -0.077832861 0.15244664 -44.342369 35.452912 6801.0257 48459318. 0.020063767 0.16213060 -44.459484 35.243780