# # 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 = 44.226422 km # Date (UTC) = 2015-12-14T08:55:56.086 # Date (julian) = 2457370.87217692 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6484.9780 1.7012475e+11 0.0098467170 0.027753363 -12.286699 52.239197 6486.8561 1.4320628e+11 0.016174777 0.028319698 -12.384959 52.163865 6488.7342 1.2121848e+11 0.022084066 0.028886033 -12.483230 52.085415 6490.6123 1.0713061e+11 0.027236070 0.029452367 -12.581503 52.006797 6492.4904 9.6487793e+10 0.031868930 0.030018702 -12.679775 51.928178 6494.3685 8.6692357e+10 0.036116535 0.030585037 -12.775101 51.852504 6496.2466 7.9418414e+10 0.039854106 0.031151372 -12.870085 51.777172 6498.1247 7.3312986e+10 0.043276765 0.031717707 -12.965069 51.701840 6500.0028 6.8454138e+10 0.046582232 0.032284041 -13.052047 51.630374 6501.8809 6.4197311e+10 0.050111272 0.032850376 -13.137532 51.559629 6503.7590 6.0397710e+10 0.054288808 0.033416711 -13.223017 51.488883 6505.6370 5.7029739e+10 0.059587541 0.033983046 -13.311305 51.416072 6507.5151 5.3789686e+10 0.066331802 0.034549381 -13.403013 51.340740 6509.3932 5.0557782e+10 0.074737736 0.035115716 -13.494722 51.265408 6511.2713 4.7102990e+10 0.084849566 0.035682050 -13.587737 51.188770 6513.1494 4.3750965e+10 0.096772046 0.036248385 -13.682734 51.110152 6515.0275 4.0556290e+10 0.11045789 0.036814720 -13.777730 51.031533 6516.9056 3.7517498e+10 0.12502174 0.037381055 -13.870466 50.952919 6518.7837 3.4631728e+10 0.13943541 0.037947390 -13.958900 50.874312 6520.6618 3.1960832e+10 0.15294286 0.038513724 -14.047333 50.795705 6522.5399 2.9469913e+10 0.16358488 0.039058633 -14.136721 50.718052 6524.4180 2.7142599e+10 0.16913466 0.039575459 -14.228430 50.642719 6526.2961 2.4973035e+10 0.17195740 0.039978514 -14.320139 50.567385 6528.1742 2.3000443e+10 0.17507627 0.041580674 -14.411067 50.491272 6530.0523 2.1222665e+10 0.17769799 0.043901905 -14.499501 50.412665 6531.9304 1.9617657e+10 0.17897466 0.046582871 -14.587934 50.334058 6533.8085 1.8188540e+10 0.17887511 0.047863169 -14.676370 50.255449 6535.6866 1.6869960e+10 0.17798837 0.047926461 -14.764815 50.176831 6537.5647 1.5667113e+10 0.17813028 0.048951446 -14.853260 50.098212 6539.4428 1.4532041e+10 0.17724753 0.050179592 -14.941271 50.019595 6541.3209 1.3484318e+10 0.17553672 0.051222474 -15.026429 49.940989 6543.1990 1.2499790e+10 0.17403169 0.051434112 -15.111587 49.862382 6545.0771 1.1605928e+10 0.17287598 0.052456257 -15.196745 49.784034 6546.9552 1.0796326e+10 0.17111200 0.053250465 -15.281903 49.708702 6548.8333 1.0060117e+10 0.16898883 0.053916483 -15.367061 49.633370 6550.7113 9.3916894e+09 0.16753945 0.055163475 -15.452220 49.557952 6552.5894 8.7830523e+09 0.16609590 0.055438404 -15.537389 49.479334 6554.4675 8.2367131e+09 0.16374713 0.054842191 -15.622559 49.400715 6556.3456 7.7317102e+09 0.16108235 0.053962311 -15.707729 49.322096 6558.2237 7.2748727e+09 0.15860893 0.053048659 -15.792887 49.243489 6560.1018 6.8529331e+09 0.15587131 0.052182500 -15.878045 49.164883 6561.9799 6.4683936e+09 0.15281291 0.050889797 -15.963203 49.086276 6563.8580 6.1084496e+09 0.14967317 0.048935838 -16.045347 49.007668 6565.7361 5.7669065e+09 0.14752568 0.047482530 -16.127230 48.929060 6567.6142 5.4499437e+09 0.14601892 0.046097858 -16.209113 48.850451 6569.4923 5.1512781e+09 0.14433330 0.044884466 -16.290996 48.771843 6571.3704 4.8680150e+09 0.14279978 0.044402111 -16.372878 48.693235 6573.2485 4.5951147e+09 0.14107717 0.043458069 -16.454761 48.614627 6575.1266 4.3391029e+09 0.13927476 0.042247695 -16.533987 48.536012 6577.0047 4.0960086e+09 0.13712796 0.040213008 -16.612605 48.457394 6578.8828 3.8637444e+09 0.13447304 0.037255595 -16.691223 48.378777 6580.7609 3.6532478e+09 0.13238440 0.035817590 -16.772326 48.300167 6582.6390 3.4571874e+09 0.13059722 0.035119911 -16.854209 48.221559 6584.5171 3.2733573e+09 0.12850451 0.034233842 -16.936091 48.142951 6586.3952 3.1022008e+09 0.12636947 0.033166188 -17.015656 48.064343 6588.2733 2.9393381e+09 0.12463333 0.033288674 -17.094264 47.985736 6590.1514 2.7805810e+09 0.12241282 0.030780516 -17.172872 47.907129 6592.0295 2.6328704e+09 0.11979303 0.028044917 -17.249335 47.828522 6593.9076 2.4945697e+09 0.11721145 0.026258474 -17.324667 47.749914 6595.7856 2.3613150e+09 0.11434352 0.025705045 -17.399999 47.671306 6597.6637 2.2357898e+09 0.11201951 0.025513275 -17.477308 47.592692 6599.5418 2.1228611e+09 0.11028606 0.024962319 -17.555926 47.514075 6601.4199 2.0164940e+09 0.10952657 0.027243455 -17.634544 47.435457 6603.2980 1.9126810e+09 0.10809583 0.026486841 -17.711358 47.356845 6605.1761 1.8204262e+09 0.10731706 0.026812799 -17.786690 47.278237 6607.0542 1.7327442e+09 0.10609050 0.025599927 -17.862022 47.199629 6608.9323 1.6495877e+09 0.10343967 0.023707721 -17.937354 47.121021 6610.8104 1.5719419e+09 0.10099626 0.024777310 -18.012686 47.042413 6612.6885 1.4975735e+09 0.099977717 0.023806324 -18.088019 46.963804 6614.5666 1.4274267e+09 0.099053586 0.023550124 -18.161901 46.885197 6616.4447 1.3601928e+09 0.097771570 0.023352095 -18.233958 46.806590 6618.3228 1.2950301e+09 0.097298421 0.024014546 -18.306015 46.727983 6620.2009 1.2323783e+09 0.096748820 0.024831935 -18.379352 46.649372 6622.0790 1.1751421e+09 0.095627559 0.024736968 -18.454694 46.570753 6623.9571 1.1229939e+09 0.093868318 0.024846410 -18.530037 46.492135 6625.8352 1.0741228e+09 0.092914579 0.026394225 -18.604272 46.413520 6627.7133 1.0282295e+09 0.091165487 0.025592338 -18.676329 46.334913 6629.5914 9.8627889e+08 0.089921265 0.026002183 -18.748385 46.256307 6631.4695 9.4269568e+08 0.088222496 0.025978454 -18.820442 46.177699 6633.3476 8.9967018e+08 0.086916793 0.026212934 -18.892499 46.099091 6635.2257 8.6066429e+08 0.085486936 0.026433629 -18.964557 46.020483 6637.1038 8.2251282e+08 0.084008536 0.026110596 -19.037841 45.939610 6638.9819 7.8573089e+08 0.082801893 0.025628866 -19.115222 45.851175 6640.8599 7.4656508e+08 0.083280900 0.025165436 -19.192602 45.762741 6642.7380 7.0968945e+08 0.082885387 0.025181898 -19.267232 45.679384 6644.6161 6.7256320e+08 0.081937964 0.025410197 -19.339290 45.600776 6646.4942 6.3921064e+08 0.080995262 0.026175979 -19.411347 45.522168 6648.3723 6.0962041e+08 0.080190120 0.027213523 -19.481890 45.443555 6650.2504 5.8538239e+08 0.079817866 0.026312567 -19.550680 45.364938 6652.1285 5.6087688e+08 0.079484143 0.027285882 -19.619470 45.286321 6654.0066 5.3701600e+08 0.078991805 0.028033406 -19.688257 45.207707 6655.8847 5.1621806e+08 0.077547660 0.027975781 -19.757039 45.129099 6657.7628 4.9557873e+08 0.076337668 0.029785946 -19.825821 45.050491 6659.6409 4.7514777e+08 0.075094485 0.031700905 -19.893431 44.971883 6661.5190 4.5542685e+08 0.073885023 0.032799288 -19.958937 44.893275 6663.3971 4.3864048e+08 0.072824221 0.032373167 -20.024443 44.814666 6665.2752 4.1871834e+08 0.072578180 0.028096218 -20.093566 44.733066 6667.1533 3.9965526e+08 0.072185015 0.027159763 -20.170947 44.644632 6669.0314 3.8323894e+08 0.071025664 0.028323469 -20.248328 44.556198 6670.9095 3.6771771e+08 0.071159533 0.026907285 -20.318699 44.473561 6672.7876 3.5039512e+08 0.070844076 0.027336092 -20.384214 44.394943 6674.6657 3.3426310e+08 0.069631489 0.029516329 -20.449728 44.316324 6676.5438 3.1740238e+08 0.067609353 0.032064179 -20.515239 44.235950 6678.4219 3.0157080e+08 0.066903200 0.030654454 -20.580745 44.154067 6680.3000 2.8731525e+08 0.067341748 0.029506190 -20.646252 44.072184 6682.1781 2.7570125e+08 0.067878583 0.030560584 -20.711758 43.991890 6684.0562 2.6771225e+08 0.067933212 0.032656941 -20.777264 43.913283 6685.9342 2.5860584e+08 0.067454088 0.033691632 -20.842769 43.834676 6687.8123 2.5029513e+08 0.065384602 0.033889849 -20.910220 43.751827 6689.6904 2.4022781e+08 0.063505373 0.033394519 -20.980232 43.663391 6691.5685 2.2795015e+08 0.062770992 0.032867126 -21.050243 43.574955 6693.4466 2.1788567e+08 0.062166427 0.031450867 -21.117021 43.493574 6695.3247 2.0741056e+08 0.062016491 0.029799826 -21.182527 43.414968 6697.2028 2.0182112e+08 0.061595068 0.030116933 -21.248034 43.336361 6699.0809 1.9541188e+08 0.060542299 0.031515768 -21.316541 43.251213 6700.9590 1.8763661e+08 0.059095892 0.031379045 -21.386562 43.162764 6702.8371 1.7940075e+08 0.058912578 0.033545166 -21.456583 43.074315 6704.7152 1.7233301e+08 0.059223285 0.036528757 -21.519194 42.995228 6706.5933 1.6617225e+08 0.059141154 0.039478998 -21.581425 42.916621 6708.4714 1.5778974e+08 0.058948350 0.040556912 -21.643656 42.838015 6710.3495 1.5275543e+08 0.057912719 0.040564904 -21.705887 42.759406 6712.2276 1.4814650e+08 0.056223346 0.042252514 -21.768119 42.680798 6714.1057 1.4270252e+08 0.054514258 0.047311354 -21.830350 42.602190 6715.9838 1.3659926e+08 0.053256544 0.048384770 -21.896042 42.515278 6717.8619 1.3272201e+08 0.051618956 0.049820957 -21.962368 42.426842 6719.7400 1.2863998e+08 0.050522820 0.050666812 -22.028157 42.339266 6721.6181 1.2286422e+08 0.050953355 0.050490126 -22.090388 42.257383 6723.4962 1.1649508e+08 0.049785581 0.049645663 -22.152618 42.175500 6725.3743 1.1079725e+08 0.046216868 0.041342238 -22.215168 42.093106 6727.2524 1.0676431e+08 0.045226661 0.040624177 -22.281505 42.004659 6729.1305 1.0349657e+08 0.045112227 0.040958479 -22.347841 41.916211 6731.0085 97585304. 0.043863927 0.041767034 -22.414174 41.827768 6732.8866 93486082. 0.043131026 0.043903437 -22.480500 41.739332 6734.7647 90571535. 0.043271338 0.049307587 -22.546827 41.650896 6736.6428 85964457. 0.045121426 0.052785278 -22.608358 41.568855 6738.5209 81477303. 0.046306991 0.060189050 -22.667313 41.490249 6740.3990 85766219. 0.045769914 0.064732029 -22.726269 41.411642 6742.2771 76877161. 0.043994297 0.069286010 -22.787427 41.327163 6744.1552 69127425. 0.040477483 0.077913469 -22.850068 41.238727 6746.0333 63909949. 0.040062427 0.078599974 -22.912710 41.150292 6747.9114 59448874. 0.036728075 0.067047398 -22.978607 41.061858 6749.7895 57063969. 0.035295344 0.072061766 -23.044933 40.973424 6751.6676 54165887. 0.033919920 0.073993936 -23.109452 40.886657 6753.5457 61097866. 0.032947709 0.074743263 -23.165133 40.808049 6755.4238 56245240. 0.039010625 0.074419539 -23.220814 40.729441 6757.3019 54473276. 0.031445560 0.075823906 -23.277306 40.649686 6759.1800 53400497. 0.022750990 0.075863387 -23.339947 40.561251 6761.0581 51013318. 0.016887682 0.077973023 -23.402589 40.472815