# # 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 = 44.574250 km # Date (UTC) = 2013-01-08T10:13:10.737 # Date (julian) = 2456300.92581871 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6505.4653 7.4686273e+10 0.069209360 0.033931247 -35.504766 47.710701 6507.3380 6.7153800e+10 0.077529206 0.034495966 -35.601349 47.601520 6509.2107 5.9810449e+10 0.085917033 0.035060686 -35.697932 47.492340 6511.0835 5.3535195e+10 0.094516019 0.035625405 -35.786294 47.396516 6512.9562 4.8632328e+10 0.10346950 0.036190124 -35.874476 47.300984 6514.8290 4.4759332e+10 0.11281291 0.036754843 -35.961714 47.206396 6516.7017 4.1379828e+10 0.12246517 0.037319562 -36.046222 47.114539 6518.5744 3.8273764e+10 0.13237215 0.037884281 -36.130730 47.022682 6520.4472 3.5482745e+10 0.14255346 0.038449000 -36.215246 46.928851 6522.3199 3.2885004e+10 0.15206982 0.039001023 -36.299768 46.833306 6524.1926 3.0404945e+10 0.15730744 0.039495400 -36.384290 46.737761 6526.0654 2.8134164e+10 0.16129944 0.039736637 -36.465809 46.642227 6527.9381 2.6059172e+10 0.16653215 0.041397561 -36.546642 46.546695 6529.8109 2.4182210e+10 0.17051388 0.043527417 -36.627475 46.451503 6531.6836 2.2493690e+10 0.17321303 0.046223667 -36.708310 46.359646 6533.5563 2.0892500e+10 0.17520066 0.047756014 -36.789145 46.267789 6535.4291 1.9364825e+10 0.17599136 0.048038165 -36.869979 46.174569 6537.3018 1.7963590e+10 0.17675610 0.048827518 -36.950814 46.079039 6539.1746 1.6670627e+10 0.17622409 0.049854918 -37.031648 45.983508 6541.0473 1.5497364e+10 0.17501106 0.051311193 -37.112482 45.887977 6542.9200 1.4444032e+10 0.17355944 0.051351531 -37.193315 45.792445 6544.7928 1.3468123e+10 0.17204824 0.052287454 -37.274149 45.696913 6546.6655 1.2556068e+10 0.17001596 0.053012127 -37.354983 45.601382 6548.5382 1.1736674e+10 0.16829208 0.053828383 -37.435818 45.505851 6550.4110 1.0986081e+10 0.16712466 0.055088265 -37.515895 45.411078 6552.2837 1.0310152e+10 0.16581613 0.055515355 -37.593055 45.319221 6554.1565 9.6923104e+09 0.16374631 0.054835663 -37.670214 45.227363 6556.0292 9.1068372e+09 0.16181875 0.054008834 -37.747374 45.133726 6557.9019 8.5602103e+09 0.16045517 0.053300776 -37.824533 45.038194 6559.7747 8.0516551e+09 0.15836897 0.052299743 -37.901693 44.942663 6561.6474 7.5739676e+09 0.15585544 0.051053654 -37.976050 44.847132 6563.5201 7.1167473e+09 0.15346853 0.049326682 -38.049536 44.751601 6565.3929 6.6966143e+09 0.15154927 0.047872276 -38.123174 44.656069 6567.2656 6.2957960e+09 0.14980086 0.046392601 -38.200346 44.560525 6569.1384 5.9340211e+09 0.14777595 0.044861429 -38.277518 44.464980 6571.0111 5.5915038e+09 0.14618478 0.044500245 -38.353511 44.369439 6572.8838 5.2521354e+09 0.14447553 0.043724008 -38.426995 44.273907 6574.7566 4.9333164e+09 0.14222779 0.042491627 -38.500479 44.178375 6576.6293 4.6450430e+09 0.13965357 0.040647048 -38.569079 44.091149 6578.5020 4.4132522e+09 0.13663184 0.037856827 -38.634399 44.009500 6580.3748 4.2209177e+09 0.13382053 0.036174400 -38.699718 43.927851 6582.2475 4.0426591e+09 0.13129293 0.035226438 -38.769419 43.838755 6584.1203 3.8543618e+09 0.12896926 0.034450002 -38.842904 43.743225 6585.9930 3.6612028e+09 0.12709761 0.033176896 -38.916390 43.647694 6587.8657 3.4641575e+09 0.12599875 0.033350183 -38.989876 43.552162 6589.7385 3.2774196e+09 0.12427099 0.031580917 -39.063362 43.456630 6591.6112 3.1094407e+09 0.12206265 0.028512231 -39.136506 43.361098 6593.4839 2.9561775e+09 0.12011627 0.026652297 -39.206316 43.265568 6595.3567 2.8222573e+09 0.11782304 0.025660560 -39.276127 43.170037 6597.2294 2.6855305e+09 0.11566566 0.025650330 -39.345938 43.074506 6599.1022 2.5540820e+09 0.11393420 0.024935875 -39.415749 42.978974 6600.9749 2.4309824e+09 0.11380863 0.026994085 -39.485559 42.883442 6602.8476 2.3119477e+09 0.11279449 0.026793295 -39.555378 42.790289 6604.7204 2.2079661e+09 0.11166363 0.026499011 -39.625200 42.698419 6606.5931 2.1070898e+09 0.11057446 0.026438160 -39.695023 42.606548 6608.4658 2.0115833e+09 0.10790960 0.023720054 -39.764834 42.511279 6610.3386 1.9213385e+09 0.10503114 0.024326491 -39.834645 42.415748 6612.2113 1.8336539e+09 0.10290772 0.024162857 -39.904456 42.320218 6614.0841 1.7538823e+09 0.10160124 0.023882576 -39.974268 42.224687 6615.9568 1.6812042e+09 0.099767240 0.023280970 -40.044081 42.129156 6617.8295 1.6090405e+09 0.098780665 0.023714280 -40.112108 42.033625 6619.7023 1.5385414e+09 0.097656499 0.024695362 -40.178244 41.938093 6621.5750 1.4724517e+09 0.096238902 0.024898856 -40.244379 41.842561 6623.4478 1.4086358e+09 0.094476262 0.024657711 -40.310516 41.747030 6625.3205 1.3496027e+09 0.093332383 0.025780045 -40.376654 41.651499 6627.1932 1.2861409e+09 0.091625450 0.025391451 -40.442791 41.556123 6629.0660 1.2285086e+09 0.090845851 0.026097178 -40.508928 41.464267 6630.9387 1.1673411e+09 0.089555907 0.025930615 -40.575065 41.372410 6632.8114 1.1165557e+09 0.088556005 0.026129643 -40.641202 41.279375 6634.6842 1.0659756e+09 0.087386530 0.026376750 -40.707339 41.183843 6636.5569 1.0196727e+09 0.086115239 0.026333479 -40.773476 41.088311 6638.4297 9.8030268e+08 0.085251166 0.025652923 -40.837413 40.992780 6640.3024 9.3676063e+08 0.085493626 0.025233654 -40.899876 40.897249 6642.1751 9.0029718e+08 0.085452380 0.025158863 -40.962340 40.801718 6644.0479 8.5671438e+08 0.084511597 0.025348780 -41.028027 40.706186 6645.9206 8.1914012e+08 0.083645727 0.025882954 -41.094164 40.610654 6647.7933 7.8062716e+08 0.082777082 0.026855479 -41.159730 40.515692 6649.6661 7.4738021e+08 0.081895229 0.026715528 -41.222201 40.423822 6651.5388 7.1411702e+08 0.081380531 0.026897092 -41.284673 40.331951 6653.4116 6.8240412e+08 0.080872880 0.027735788 -41.347140 40.238490 6655.2843 6.5437788e+08 0.079536385 0.027727687 -41.409604 40.142960 6657.1570 6.2215803e+08 0.077853137 0.029083264 -41.472067 40.047429 6659.0298 5.9779585e+08 0.076313127 0.031828389 -41.534530 39.951898 6660.9025 5.7181919e+08 0.075073630 0.032446334 -41.596992 39.856366 6662.7752 5.4732738e+08 0.073925780 0.032609313 -41.659454 39.760834 6664.6480 5.2519818e+08 0.073106769 0.029835145 -41.721917 39.665303 6666.5207 4.9868464e+08 0.073058642 0.027010064 -41.784381 39.569772 6668.3935 4.7801407e+08 0.072366962 0.027818958 -41.845854 39.475231 6670.2662 4.5715387e+08 0.072280618 0.027205308 -41.904642 39.383375 6672.1389 4.3509010e+08 0.072201662 0.026960128 -41.963430 39.291518 6674.0117 4.1592797e+08 0.071606950 0.028964637 -42.024232 39.197648 6675.8844 3.9364827e+08 0.069803122 0.031492327 -42.086694 39.102117 6677.7571 3.8092641e+08 0.068829572 0.031281853 -42.149156 39.006587 6679.6299 3.6809659e+08 0.068760246 0.029747262 -42.208582 38.911055 6681.5026 3.5278414e+08 0.069586763 0.030042963 -42.267370 38.815523 6683.3754 3.3622193e+08 0.070055670 0.031738677 -42.327039 38.718562 6685.2481 3.1376259e+08 0.069974140 0.032966891 -42.394227 38.609381 6687.1208 2.9649197e+08 0.068437108 0.034275508 -42.461416 38.500200 6688.9936 2.8559791e+08 0.065893155 0.034014541 -42.522527 38.403551 6690.8663 2.7577375e+08 0.065130333 0.033016583 -42.581316 38.311695 6692.7391 2.6542859e+08 0.064361393 0.031907114 -42.640104 38.219818 6694.6118 2.5632886e+08 0.063645833 0.030403574 -42.698892 38.124299 6696.4845 2.4458008e+08 0.063333817 0.029877096 -42.757681 38.028767 6698.3573 2.3678897e+08 0.062388981 0.030708202 -42.815442 37.933232 6700.2300 2.2979114e+08 0.060868588 0.030838317 -42.870565 37.837687 6702.1027 2.1807992e+08 0.059453451 0.032958768 -42.925688 37.742142 6703.9755 2.1035006e+08 0.059670134 0.036116189 -42.982860 37.648659 6705.8482 2.0109531e+08 0.059661057 0.038176560 -43.041648 37.556802 6707.7210 1.9509693e+08 0.059315050 0.040083551 -43.100436 37.464945 6709.5937 1.8966336e+08 0.058458232 0.040754927 -43.156148 37.370011 6711.4664 1.8188328e+08 0.056783731 0.041222900 -43.211261 37.274478 6713.3392 1.7795244e+08 0.055020935 0.044913314 -43.267286 37.177367 6715.2119 1.7095701e+08 0.053388586 0.047595317 -43.330275 37.068187 6717.0846 1.6675130e+08 0.051566768 0.049869033 -43.393265 36.959007 6718.9574 1.5837460e+08 0.049477663 0.051303460 -43.450472 36.862548 6720.8301 1.4890857e+08 0.049887091 0.050323583 -43.505586 36.770691 6722.7029 1.4044154e+08 0.049208217 0.049736293 -43.560701 36.678781 6724.5756 1.3453011e+08 0.046102460 0.045120094 -43.615814 36.583255 6726.4483 1.3176754e+08 0.043678622 0.040955411 -43.670928 36.487724 6728.3211 1.2812286e+08 0.043236522 0.040083159 -43.726041 36.392192 6730.1938 1.2428208e+08 0.041924156 0.040644634 -43.781156 36.296662 6732.0665 1.2033184e+08 0.040455187 0.043752460 -43.836271 36.201131 6733.9393 1.1543178e+08 0.039535096 0.049023941 -43.895869 36.100218 6735.8120 1.1114500e+08 0.040951642 0.050155451 -43.958857 35.995236 6737.6848 1.0625013e+08 0.042113753 0.056316876 -44.019674 35.892032 6739.5575 1.0159491e+08 0.042213915 0.063508819 -44.071115 35.796501 6741.4302 1.0106338e+08 0.040772629 0.066985740 -44.122556 35.700971 6743.3030 94640173. 0.037162023 0.073091271 -44.179383 35.601032 6745.1757 90084751. 0.034643582 0.078640753 -44.242371 35.496050 6747.0484 85625003. 0.029989547 0.067344483 -44.304376 35.391873 6748.9212 82073778. 0.030101275 0.071863279 -44.355816 35.296341 6750.7939 81283051. 0.027274309 0.073359784 -44.407255 35.200809 6752.6667 76144787. 0.024339252 0.073363027 -44.458696 35.106613 6754.5394 73736315. 0.022698461 0.075346053 -44.510137 35.014755 6756.4121 69832243. 0.019696228 0.075227393 -44.561578 34.922898 6758.2849 66167061. 0.018480851 0.074307724 -44.617736 34.819922 6760.1576 63339735. 0.015899978 0.076361827 -44.676525 34.710742 6762.0303 58688385. 0.00045312630 0.078001890 -44.733400 34.606074 6763.9031 56521302. 0.018341641 0.079188133 -44.784840 34.514218 6765.7758 54396454. 0.054492357 0.079672823 -44.836279 34.422361