# # 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 = 56.817048 km # Date (UTC) = 2013-11-24T10:53:27.859 # Date (julian) = 2456620.95379466 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6505.4029 5.5765867e+10 0.066674596 0.033912430 91.613111 29.666370 6507.7145 4.9959213e+10 0.076584264 0.034609496 91.668838 29.536138 6510.0261 4.4982779e+10 0.086796891 0.035306561 91.723263 29.404612 6512.3378 4.0881842e+10 0.097429176 0.036003626 91.779995 29.275394 6514.6494 3.7523645e+10 0.10854063 0.036700691 91.838954 29.148403 6516.9610 3.4447795e+10 0.11997507 0.037397757 91.898898 29.014324 6519.2726 3.1495147e+10 0.13166071 0.038094822 91.961100 28.864006 6521.5843 2.8728370e+10 0.14361470 0.038791887 92.020389 28.722427 6523.8959 2.6297480e+10 0.15040717 0.039401158 92.074815 28.595436 6526.2075 2.4317323e+10 0.15550161 0.039885649 92.129240 28.468446 6528.5191 2.2613958e+10 0.16068461 0.041854325 92.183662 28.341455 6530.8308 2.1106501e+10 0.16433471 0.044991770 92.238085 28.214464 6533.1424 1.9721142e+10 0.16829648 0.047580105 92.292510 28.083098 6535.4540 1.8425204e+10 0.16955656 0.048027339 92.346936 27.951573 6537.7657 1.7175921e+10 0.17104182 0.049046201 92.401361 27.823493 6540.0773 1.5997992e+10 0.17216343 0.050890615 92.455787 27.696502 6542.3889 1.4923465e+10 0.17108827 0.051149893 92.507693 27.569512 6544.7005 1.3980308e+10 0.17035200 0.052212644 92.557579 27.442522 6547.0122 1.3027337e+10 0.16891425 0.053291994 92.611778 27.307364 6549.3238 1.2010906e+10 0.16676429 0.054296259 92.673980 27.157045 6551.6354 1.1036392e+10 0.16505584 0.055458797 92.732908 27.016546 6553.9471 1.0137123e+10 0.16266630 0.054858994 92.787334 26.889556 6556.2587 9.4195302e+09 0.16053368 0.053975094 92.840780 26.762566 6558.5703 8.8107963e+09 0.15834261 0.052753327 92.890669 26.635575 6560.8819 8.2425738e+09 0.15552230 0.051479126 92.940559 26.508584 6563.1936 7.7296318e+09 0.15321701 0.049704452 92.990456 26.381574 6565.5052 7.2338185e+09 0.15092770 0.047744739 93.040353 26.254564 6567.8168 6.7827501e+09 0.14928536 0.045926541 93.093900 26.123912 6570.1285 6.3660571e+09 0.14794060 0.044864299 93.148322 25.992387 6572.4401 5.9766955e+09 0.14626388 0.043978132 93.200016 25.863591 6574.7517 5.6199793e+09 0.14424307 0.042493961 93.249906 25.736600 6577.0633 5.2941044e+09 0.14200949 0.040120885 93.299795 25.609609 6579.3750 4.9951324e+09 0.13924843 0.036864363 93.349685 25.482618 6581.6866 4.7146242e+09 0.13698166 0.035388699 93.399574 25.355628 6583.9982 4.4560317e+09 0.13460612 0.034516411 93.449463 25.228638 6586.3098 4.2082137e+09 0.13238056 0.033167291 93.499353 25.101648 6588.6215 3.9774023e+09 0.13030098 0.033172386 93.549242 24.974657 6590.9331 3.7651730e+09 0.12730149 0.029326344 93.599132 24.847666 6593.2447 3.5616715e+09 0.12452964 0.026874693 93.649021 24.720676 6595.5564 3.3731127e+09 0.12106239 0.025681267 93.698910 24.593687 6597.8680 3.2032186e+09 0.11813138 0.025448823 93.748800 24.466696 6600.1796 3.0507787e+09 0.11687282 0.025359135 93.798689 24.339705 6602.4912 2.9031909e+09 0.11603460 0.027097424 93.849302 24.205958 6604.8029 2.7454860e+09 0.11529010 0.026547996 93.901135 24.060823 6607.1145 2.5824124e+09 0.11445242 0.025480898 93.952107 23.923728 6609.4261 2.4328488e+09 0.11163753 0.023832512 94.001997 23.796738 6611.7378 2.3042171e+09 0.10924903 0.024487985 94.051888 23.669743 6614.0494 2.1929902e+09 0.10841573 0.023906468 94.101785 23.542734 6616.3610 2.0818306e+09 0.10712505 0.023338960 94.151528 23.415725 6618.6726 1.9787806e+09 0.10660828 0.024278720 94.196881 23.288734 6620.9843 1.8863802e+09 0.10588160 0.025084377 94.242234 23.161744 6623.2959 1.7982825e+09 0.10432408 0.024601451 94.291347 23.038512 6625.6075 1.7178121e+09 0.10293140 0.026122564 94.341237 22.916058 6627.9192 1.6340154e+09 0.10111042 0.025671865 94.388296 22.790773 6630.2308 1.5590257e+09 0.099559605 0.025928870 94.433649 22.663783 6632.5424 1.4855534e+09 0.097778922 0.026097384 94.479002 22.536792 6634.8540 1.4180271e+09 0.096141231 0.026389140 94.524355 22.409801 6637.1657 1.3531793e+09 0.094395028 0.026080274 94.570679 22.282811 6639.4773 1.2885908e+09 0.093489251 0.025457479 94.620569 22.155820 6641.7889 1.2306209e+09 0.093607634 0.025150979 94.670408 22.028880 6644.1005 1.1760643e+09 0.092246499 0.025354473 94.715769 21.906417 6646.4122 1.1259815e+09 0.090794116 0.026133504 94.761122 21.783961 6648.7238 1.0757654e+09 0.089236177 0.027448802 94.806478 21.657858 6651.0354 1.0293275e+09 0.088532561 0.026511320 94.851834 21.530868 6653.3471 9.8044399e+08 0.088059591 0.027702859 94.897193 21.403866 6655.6587 9.3648371e+08 0.086557825 0.027882388 94.942553 21.276858 6657.9703 8.9790707e+08 0.085056897 0.030026648 94.987910 21.151647 6660.2819 8.6023272e+08 0.083594845 0.031882272 95.033263 21.029192 6662.5936 8.2574951e+08 0.082206657 0.032711242 95.079847 20.902428 6664.9052 7.8498407e+08 0.081519604 0.028893995 95.131680 20.757292 6667.2168 7.4291903e+08 0.081185344 0.027183103 95.181824 20.618070 6669.5285 7.0515159e+08 0.080266666 0.027812940 95.227177 20.495614 6671.8401 6.7407661e+08 0.080157419 0.026877320 95.272277 20.372906 6674.1517 6.4505314e+08 0.079226001 0.029082771 95.313097 20.245916 6676.4633 6.1898535e+08 0.076783705 0.032012345 95.353917 20.118927 6678.7750 5.9235166e+08 0.075795991 0.030418281 95.398594 19.995796 6681.0866 5.6751339e+08 0.076651504 0.029723794 95.443947 19.873341 6683.3982 5.4085799e+08 0.077097749 0.031772185 95.489300 19.747955 6685.7099 5.1801579e+08 0.076554388 0.033454618 95.534653 19.620965 6688.0215 5.0107332e+08 0.073940095 0.033790149 95.578006 19.495975 6690.3331 4.8306587e+08 0.071783908 0.033077689 95.618827 19.373520 6692.6447 4.6868242e+08 0.070570348 0.032016634 95.662249 19.245706 6694.9564 4.4549895e+08 0.069800600 0.029920630 95.714083 19.100571 6697.2680 4.2451362e+08 0.069039061 0.030125180 95.762533 18.962400 6699.5796 4.0639182e+08 0.067409385 0.031055608 95.803350 18.839944 6701.8912 3.8514990e+08 0.065524605 0.032717162 95.844630 18.717489 6704.2029 3.6982970e+08 0.065847553 0.036277177 95.889986 18.595034 6706.5145 3.5472687e+08 0.065799485 0.039341861 95.935343 18.472579 6708.8261 3.4436748e+08 0.065283749 0.040943208 95.976626 18.346055 6711.1378 3.3347068e+08 0.063532813 0.040848967 96.017443 18.219064 6713.4494 3.1755038e+08 0.061411048 0.045311969 96.065887 18.083099 6715.7610 3.0060730e+08 0.059541112 0.048156935 96.117720 17.943148 6718.0726 2.8818913e+08 0.057379086 0.049925553 96.161154 17.816535 6720.3843 2.8011007e+08 0.056500849 0.050375242 96.201980 17.694061 6722.6959 2.7207005e+08 0.055964649 0.049744889 96.242801 17.571598 6725.0075 2.6078980e+08 0.051681512 0.041571317 96.283617 17.449144 6727.3192 2.4746935e+08 0.050218816 0.040535177 96.326498 17.320501 6729.6308 2.3718841e+08 0.049414883 0.040624993 96.373151 17.180550 6731.9424 2.2822302e+08 0.047558675 0.043625601 96.419252 17.048024 6734.2540 2.1966097e+08 0.046757329 0.049338315 96.464605 16.925568 6736.5657 2.0981625e+08 0.048624561 0.052493552 96.508962 16.802117 6738.8773 2.0217082e+08 0.049567515 0.062151017 96.549779 16.675126 6741.1889 1.9614787e+08 0.048242407 0.066297517 96.590681 16.547945 6743.5006 1.9047440e+08 0.043871420 0.074424159 96.637334 16.407995 6745.8122 1.8320611e+08 0.041738344 0.078908321 96.683488 16.269539 6748.1238 1.7494069e+08 0.037592214 0.067668264 96.724304 16.147084 6750.4354 1.6694156e+08 0.034846392 0.072747658 96.765121 16.024628 6752.7471 1.5699830e+08 0.032120582 0.073269982 96.811076 15.886767 6755.0587 1.4955576e+08 0.030388638 0.074579612 96.857729 15.746815 6757.3703 1.4154056e+08 0.028243594 0.075616230 96.898830 15.623508 6759.6819 1.3621196e+08 0.029312020 0.075984520 96.939647 15.501052 6761.9936 1.3499306e+08 0.033030235 0.078050314 96.977080 15.381982 6764.3052 1.3100894e+08 0.036340796 0.079497907 97.013364 15.264063 6766.6168 1.2453862e+08 0.037345767 0.081109035 97.055262 15.134212 6768.9285 1.1654053e+08 0.032840617 0.084196848 97.101915 14.994261 6771.2401 1.1044629e+08 0.028738620 0.089887462 97.148565 14.854309 6773.5517 1.0983105e+08 0.024609100 0.095494176 97.195214 14.714358 6775.8633 1.0832160e+08 0.020500313 0.10110089 97.237881 14.586357 6778.1750 1.0590567e+08 0.016405501 0.10670760 97.278701 14.463902 6780.4866 99678775. 0.012378080 0.11231432 97.322308 14.333081 6782.7982 93321603. 0.0083678845 0.11792103 97.368957 14.193129 6785.1099 89444215. 0.0043288466 0.12352775 97.409917 14.062781 6787.4215 87182219. 0.00026303956 0.12913446 97.446200 13.940326 6789.7331 87215435. -0.0038388436 0.13474118 97.486050 13.813635 6792.0447 85080870. -0.0078978888 0.14034789 97.532698 13.678867 6794.3564 82694726. -0.011949031 0.14595460 97.577198 13.541949 6796.6680 77808508. -0.015942989 0.15156132 97.618666 13.401998 6798.9796 74358060. -0.019954487 0.15716803 97.659820 13.270542 6801.2913 70064509. -0.023929362 0.16277475 97.700640 13.148087 6803.6029 66003742. -0.027879770 0.16838146 97.741641 13.022176 6805.9145 66177095. -0.031916853 0.17398818 97.783105 12.887407 6808.2261 65465648. -0.035910950 0.17959489 97.826393 12.750817 6810.5378 65347589. -0.039913826 0.18520160 97.873045 12.610865 6812.8494 66081958. -0.043943403 0.19080832 97.917509 12.470914 6815.1610 61180202. -0.047795955 0.19641503 97.958977 12.330962 6817.4726 60175696. -0.051746812 0.20202175 98.002999 12.193566 6819.7843 56696169. -0.055568982 0.20762846 98.049647 12.058798 6822.0959 54192227. -0.059299657 0.21323517 98.093376 11.921108 6824.4075 53357288. -0.063244862 0.21884189 98.134844 11.781156 6826.7192 47331917. -0.065514373 0.22444860 98.176312 11.644493 6829.0308 44972497. -0.071079554 0.23005532 98.217780 11.509724 6831.3424 43516146. -0.078478838 0.23566203 98.262902 11.371300