# # 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 = 50.060453 km # Date (UTC) = 2011-11-24T10:32:11.133 # Date (julian) = 2455889.93901774 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6497.1553 2.5400491e+11 0.039522056 0.031425389 -36.971890 56.939560 6499.3090 2.1181459e+11 0.047074831 0.032074844 -37.119786 56.838147 6501.4628 1.8073998e+11 0.054578638 0.032724299 -37.278781 56.729121 6503.6165 1.5433280e+11 0.062134521 0.033373754 -37.447810 56.613216 6505.7702 1.3060917e+11 0.069769781 0.034023209 -37.612447 56.497311 6507.9240 1.1081337e+11 0.077582744 0.034672664 -37.771815 56.381407 6510.0777 9.4836967e+10 0.085720304 0.035322119 -37.925157 56.269444 6512.2315 8.1874946e+10 0.094299669 0.035971574 -38.068827 56.163804 6514.3852 7.1990519e+10 0.10360101 0.036621029 -38.212687 56.057986 6516.5389 6.3387338e+10 0.11348115 0.037270484 -38.367226 55.942080 6518.6927 5.5585229e+10 0.12388548 0.037919939 -38.521766 55.826174 6520.8464 4.9113463e+10 0.13506194 0.038569394 -38.662016 55.723989 6523.0002 4.4260588e+10 0.14447202 0.039179155 -38.801461 55.622575 6525.1539 4.0673733e+10 0.15189339 0.039764649 -38.949664 55.509952 6527.3077 3.7291824e+10 0.15807216 0.040939829 -39.104204 55.389218 6529.4614 3.3861940e+10 0.16329474 0.042970744 -39.256283 55.270944 6531.6151 3.0553544e+10 0.16817255 0.046124016 -39.405994 55.155038 6533.7689 2.7652141e+10 0.17182607 0.047846337 -39.547490 55.043638 6535.9226 2.5322737e+10 0.17279748 0.047824069 -39.678483 54.937998 6538.0764 2.3456603e+10 0.17441639 0.049193864 -39.810480 54.831616 6540.2301 2.1775167e+10 0.17395420 0.050962808 -39.955360 54.715710 6542.3838 2.0187801e+10 0.17137648 0.051147966 -40.100125 54.599870 6544.5376 1.8755419e+10 0.16944400 0.052080447 -40.226999 54.494166 6546.6913 1.7525496e+10 0.16750480 0.053033376 -40.353787 54.388510 6548.8451 1.6358685e+10 0.16552213 0.053920012 -40.492073 54.273272 6550.9988 1.5162729e+10 0.16396276 0.055235453 -40.636953 54.152538 6553.1526 1.4028393e+10 0.16290744 0.055258382 -40.769217 54.040330 6555.3063 1.3091017e+10 0.16123817 0.054596006 -40.891760 53.934689 6557.4600 1.2284797e+10 0.15942071 0.053577756 -41.017775 53.827014 6559.6138 1.1465044e+10 0.15723952 0.052317903 -41.157825 53.711110 6561.7675 1.0636253e+10 0.15491760 0.050994465 -41.295101 53.596517 6563.9213 9.8609596e+09 0.15238928 0.048862683 -41.413419 53.490877 6566.0750 9.2149624e+09 0.15048171 0.047140457 -41.531737 53.385236 6568.2287 8.6915396e+09 0.14911950 0.045561394 -41.650054 53.279596 6570.3825 8.2172437e+09 0.14768707 0.044759071 -41.768370 53.173956 6572.5362 7.7301771e+09 0.14595435 0.043923073 -41.893357 53.062361 6574.6900 7.2310333e+09 0.14376592 0.042523616 -42.028578 52.941627 6576.8437 6.7484176e+09 0.14134328 0.040400268 -42.156955 52.825782 6578.9974 6.3382255e+09 0.13812695 0.037074525 -42.271047 52.720142 6581.1512 5.9995569e+09 0.13530062 0.035550826 -42.385139 52.614501 6583.3049 5.6652258e+09 0.13289727 0.034867323 -42.514837 52.494410 6585.4587 5.3284023e+09 0.13057250 0.033604073 -42.645230 52.373677 6587.6124 5.0027405e+09 0.12888046 0.033294057 -42.757420 52.266327 6589.7662 4.7364808e+09 0.12712270 0.031525990 -42.867285 52.160686 6591.9199 4.4866922e+09 0.12493831 0.028163911 -42.985317 52.047194 6594.0736 4.2190730e+09 0.12290192 0.026132099 -43.110881 51.926460 6596.2274 3.9613753e+09 0.12055873 0.025726240 -43.229388 51.812512 6598.3811 3.7164687e+09 0.11901361 0.025225203 -43.339254 51.706871 6600.5349 3.5335065e+09 0.11871373 0.026089459 -43.448768 51.601231 6602.6886 3.3785009e+09 0.11790289 0.026929004 -43.554408 51.495591 6604.8423 3.2286532e+09 0.11692683 0.026571435 -43.660048 51.389951 6606.9961 3.0729821e+09 0.11576327 0.025714021 -43.776502 51.273497 6609.1498 2.8978989e+09 0.11272308 0.023750438 -43.897236 51.152763 6611.3036 2.7354138e+09 0.10992979 0.024764866 -44.008222 51.039047 6613.4573 2.6060111e+09 0.10876014 0.023741380 -44.113863 50.929180 6615.6111 2.4878444e+09 0.10706972 0.023270332 -44.223718 50.816279 6617.7648 2.3632311e+09 0.10596888 0.023692816 -44.344452 50.695545 6619.9185 2.2309708e+09 0.10508353 0.024747543 -44.461156 50.577960 6622.0723 2.1074885e+09 0.10355562 0.024738754 -44.562571 50.472319 6624.2260 2.0037102e+09 0.10133991 0.024983299 -44.663987 50.366679 6626.3798 1.9005664e+09 0.099540392 0.026107049 -44.773536 50.248329 6628.5335 1.8002575e+09 0.097613163 0.025919704 -44.884611 50.127595 6630.6872 1.7008705e+09 0.095617563 0.025929995 -44.988234 50.015246 6632.8410 1.6218885e+09 0.093903497 0.026133186 -45.089649 49.905381 6634.9947 1.5521465e+09 0.092364256 0.026399403 -45.189359 49.797220 6637.1485 1.4915220e+09 0.090911744 0.026088695 -45.286562 49.691564 6639.3022 1.4366090e+09 0.090187012 0.025520057 -45.384302 49.585325 6641.4560 1.3702497e+09 0.090811152 0.025149849 -45.495378 49.464590 6643.6097 1.3020531e+09 0.090170343 0.025284675 -45.606454 49.343855 6645.7634 1.2341236e+09 0.089266449 0.025809327 -45.699996 49.233643 6647.9172 1.1808829e+09 0.088270835 0.026920679 -45.792960 49.123779 6650.0709 1.1305929e+09 0.087474056 0.026271473 -45.896818 49.007376 6652.2247 1.0777611e+09 0.086885325 0.027312335 -46.007893 48.886642 6654.3784 1.0252878e+09 0.086001455 0.027875022 -46.109352 48.773921 6656.5321 9.7792298e+08 0.084067689 0.028490479 -46.202314 48.668281 6658.6859 9.3875831e+08 0.082378326 0.031277514 -46.296666 48.559366 6660.8396 8.9518590e+08 0.080891919 0.032389180 -46.398084 48.433802 6662.9934 8.4886558e+08 0.079594596 0.032486932 -46.498710 48.310104 6665.1471 8.0780450e+08 0.078821843 0.028306082 -46.591672 48.204464 6667.3009 7.7113921e+08 0.078134318 0.027213966 -46.684635 48.098823 6669.4546 7.4057593e+08 0.076904568 0.027888801 -46.774525 47.993183 6671.6083 7.1563788e+08 0.076538467 0.026874018 -46.863262 47.887543 6673.7621 6.8548126e+08 0.075592475 0.028598962 -46.956572 47.774719 6675.9158 6.5414483e+08 0.073152235 0.031552489 -47.057990 47.649156 6678.0696 6.2044547e+08 0.071900359 0.030890088 -47.155731 47.529370 6680.2233 5.9048821e+08 0.072050392 0.029489637 -47.244468 47.423730 6682.3770 5.6680787e+08 0.072699360 0.030712619 -47.333205 47.318090 6684.5308 5.3720083e+08 0.072870729 0.032681027 -47.429192 47.194052 6686.6845 5.0878616e+08 0.071760932 0.034159353 -47.525779 47.068488 6688.8383 4.8066395e+08 0.069116136 0.033978691 -47.612070 46.959913 6690.9920 4.6261908e+08 0.068129993 0.033002178 -47.696583 46.854273 6693.1458 4.5238355e+08 0.067271684 0.031554087 -47.786966 46.741293 6695.2995 4.3654103e+08 0.066789403 0.029804460 -47.883551 46.620559 6697.4532 4.1869387e+08 0.066189554 0.030148623 -47.975120 46.504342 6699.6070 4.0082385e+08 0.064794705 0.031030366 -48.059632 46.394477 6701.7607 3.8699654e+08 0.063032074 0.032525637 -48.144500 46.284080 6703.9145 3.7328317e+08 0.063229375 0.035963506 -48.236259 46.163346 6706.0682 3.5616687e+08 0.063258478 0.038565104 -48.328018 46.042612 6708.2219 3.3800732e+08 0.062907043 0.040285266 -48.424499 45.917151 6710.3757 3.2208538e+08 0.061585240 0.040570030 -48.521086 45.791586 6712.5294 3.1237680e+08 0.059478034 0.042812927 -48.602877 45.684107 6714.6832 3.0052581e+08 0.057430974 0.047354769 -48.683165 45.578467 6716.8369 2.8777532e+08 0.055466107 0.049634051 -48.769659 45.462046 6718.9907 2.7381083e+08 0.053092853 0.051355279 -48.861416 45.336483 6721.1444 2.6106062e+08 0.053561657 0.050347405 -48.945788 45.220295 6723.2981 2.5442877e+08 0.052231288 0.049535219 -49.021849 45.114655 6725.4519 2.4706538e+08 0.048064809 0.041293755 -49.099542 45.006943 6727.6056 2.3964288e+08 0.046921506 0.040153530 -49.191299 44.881379 6729.7594 2.2993434e+08 0.046004003 0.040539295 -49.282895 44.755975 6731.9131 2.1668174e+08 0.044417198 0.043567263 -49.369825 44.635240 6734.0668 2.0592897e+08 0.043587886 0.049349578 -49.456754 44.514506 6736.2206 1.9506419e+08 0.045484457 0.051188936 -49.533220 44.404235 6738.3743 1.8639208e+08 0.046707586 0.059381924 -49.609281 44.294370 6740.5281 1.8040298e+08 0.046180367 0.064952473 -49.688942 44.178026 6742.6818 1.7445476e+08 0.043240751 0.070272106 -49.771042 44.057292 6744.8356 1.6915740e+08 0.039618259 0.078439689 -49.855680 43.934021 6746.9893 1.6070854e+08 0.035036857 0.067485658 -49.942608 43.808458 6749.1430 1.5137904e+08 0.034944545 0.072238771 -50.022677 43.691950 6751.2968 1.4225613e+08 0.031872616 0.073837149 -50.094522 43.586294 6753.4505 1.3771279e+08 0.029648508 0.074435242 -50.167703 43.478876 6755.6043 1.3694531e+08 0.027517979 0.074340417 -50.254617 43.353332 6757.7580 1.3267163e+08 0.026305703 0.074439730 -50.341446 43.227873 6759.9117 1.2717651e+08 0.027138257 0.076039973 -50.423544 43.107139 6762.0655 1.1835413e+08 0.030978870 0.077945216 -50.505643 42.986405 6764.2192 1.0998283e+08 0.034103643 0.079493788 -50.587743 42.865671 6766.3730 1.0516594e+08 0.035337670 0.080557402 -50.669843 42.744937 6768.5267 1.0243956e+08 0.031574916 0.082751242 -50.747710 42.619972 6770.6804 1.0035866e+08 0.027409336 0.088530088 -50.824979 42.494410 6772.8342 96093499. 0.023603045 0.093753858 -50.897879 42.384884 6774.9879 91716973. 0.019814943 0.098977628 -50.969724 42.279228 6777.1417 90050955. 0.016024262 0.10420140 -51.043953 42.164824 6779.2954 92424296. 0.012221777 0.10942517 -51.121223 42.039260 6781.4492 90445137. 0.0084689405 0.11464894 -51.198488 41.915484 6783.6029 86253542. 0.0047298482 0.11987271 -51.275747 41.794770 6785.7566 78819426. 0.0010222148 0.12509648 -51.353009 41.672612 6787.9104 73758446. -0.0027039637 0.13032025 -51.430279 41.547050 6790.0641 70400803. -0.0064491840 0.13554402 -51.507548 41.422584 6792.2179 64948361. -0.010180248 0.14076779 -51.584818 41.301850 6794.3716 64205714. -0.013970586 0.14599156 -51.661332 41.180361 6796.5253 61157455. -0.018100129 0.15121533 -51.733771 41.054796 6798.6791 57123110. -0.023753098 0.15643910 -51.806625 40.929646 6800.8328 54269176. -0.026067381 0.16166287 -51.883894 40.808912 6802.9866 52052856. -0.026441867 0.16688664 -51.961091 40.688106