# # 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 = 60.381455 km # Date (UTC) = 2014-12-24T10:16:31.452 # Date (julian) = 2457015.92814180 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6512.4089 4.4632775e+10 0.10788990 0.036025080 102.43160 29.031298 6514.5636 4.0607062e+10 0.11832672 0.036674832 102.48045 28.929839 6516.7184 3.6881088e+10 0.12888719 0.037324584 102.53232 28.828369 6518.8731 3.3529221e+10 0.13958526 0.037974335 102.58494 28.726896 6521.0278 3.0579239e+10 0.15044592 0.038624087 102.63755 28.625425 6523.1825 2.7915731e+10 0.15813408 0.039224351 102.69016 28.523967 6525.3373 2.5466345e+10 0.16317077 0.039743725 102.74277 28.422508 6527.4920 2.3301335e+10 0.16715776 0.041073651 102.79357 28.321049 6529.6467 2.1345148e+10 0.17016034 0.043265922 102.84242 28.219590 6531.8014 1.9584940e+10 0.17255412 0.046395164 102.89127 28.118131 6533.9562 1.7989990e+10 0.17336016 0.047925922 102.94012 28.016671 6536.1109 1.6529438e+10 0.17273176 0.047889705 102.98897 27.915212 6538.2656 1.5211427e+10 0.17367727 0.049286015 103.03842 27.813751 6540.4203 1.4027500e+10 0.17349138 0.051052675 103.09104 27.712278 6542.5751 1.2957542e+10 0.17205468 0.051220559 103.14365 27.610805 6544.7298 1.2004958e+10 0.17102837 0.052236356 103.19439 27.509340 6546.8845 1.1185419e+10 0.16954487 0.053192328 103.24324 27.407881 6549.0392 1.0440399e+10 0.16742386 0.054006255 103.29210 27.306423 6551.1940 9.7026517e+09 0.16579813 0.055303831 103.34606 27.194332 6553.3487 8.9534182e+09 0.16408602 0.055159792 103.40102 27.080188 6555.5034 8.2368082e+09 0.16197768 0.054430387 103.45309 26.972041 6557.6581 7.6142922e+09 0.16004167 0.053453591 103.50194 26.870582 6559.8129 7.1216518e+09 0.15772327 0.052295433 103.55079 26.769122 6561.9676 6.6949873e+09 0.15516527 0.050895880 103.59660 26.670702 6564.1223 6.3087418e+09 0.15238678 0.048716170 103.64170 26.572988 6566.2770 5.9517711e+09 0.15051220 0.047026171 103.68736 26.474709 6568.4318 5.6110819e+09 0.14909428 0.045374779 103.73621 26.373250 6570.5865 5.2982279e+09 0.14786241 0.044674570 103.78506 26.271790 6572.7412 4.9945887e+09 0.14644420 0.043805688 103.83391 26.170332 6574.8959 4.7198455e+09 0.14465168 0.042424694 103.88277 26.068873 6577.0507 4.4650041e+09 0.14258200 0.040140809 103.93162 25.967414 6579.2054 4.2336573e+09 0.13998426 0.036957592 103.97735 25.865955 6581.3601 4.0176929e+09 0.13792517 0.035487565 104.02245 25.764496 6583.5148 3.8131594e+09 0.13609330 0.034761084 104.06817 25.663035 6585.6696 3.6291396e+09 0.13402736 0.033435481 104.11703 25.561562 6587.8243 3.4607769e+09 0.13232446 0.033340998 104.16588 25.460089 6589.9790 3.3064692e+09 0.13008928 0.031103724 104.21284 25.360526 6592.1337 3.1568956e+09 0.12727149 0.027943636 104.25793 25.262825 6594.2885 3.0094383e+09 0.12454604 0.026014177 104.30302 25.165123 6596.4432 2.8749658e+09 0.12136117 0.025725259 104.34811 25.064246 6598.5979 2.7594156e+09 0.11898278 0.025121705 104.39321 24.962786 6600.7526 2.6504334e+09 0.11846445 0.026537140 104.44011 24.858993 6602.9074 2.5307585e+09 0.11768354 0.026742334 104.49507 24.744850 6605.0621 2.4019544e+09 0.11732801 0.026717122 104.55003 24.630707 6607.2168 2.2796783e+09 0.11637570 0.025278889 104.59691 24.530023 6609.3715 2.1785687e+09 0.11370976 0.023816293 104.64200 24.432322 6611.5263 2.0922917e+09 0.11134074 0.024622861 104.68710 24.334027 6613.6810 2.0051533e+09 0.11063970 0.023823443 104.73220 24.232554 6615.8357 1.9236667e+09 0.10938560 0.023277244 104.77730 24.131081 6617.9904 1.8472634e+09 0.10892145 0.023767623 104.82240 24.031482 6620.1452 1.7769037e+09 0.10834800 0.024813973 104.86749 23.933780 6622.2999 1.7063663e+09 0.10716541 0.024678175 104.91258 23.836079 6624.4546 1.6363122e+09 0.10555953 0.025105657 104.95453 23.735238 6626.6093 1.5705279e+09 0.10397653 0.025814561 104.99587 23.633779 6628.7641 1.5118184e+09 0.10262270 0.026013309 105.03786 23.532974 6630.9188 1.4539406e+09 0.10090375 0.025930566 105.08295 23.435274 6633.0735 1.4002600e+09 0.099480598 0.026165086 105.12804 23.337573 6635.2282 1.3457876e+09 0.097865876 0.026434014 105.17603 23.231427 6637.3830 1.2827721e+09 0.096410475 0.025973852 105.22677 23.117267 6639.5377 1.2262985e+09 0.095654884 0.025435896 105.27667 23.005542 6641.6924 1.1704938e+09 0.095832438 0.025150652 105.32176 22.907840 6643.8471 1.1184969e+09 0.094666929 0.025320525 105.36686 22.810138 6646.0019 1.0781784e+09 0.093362857 0.025921107 105.41012 22.712437 6648.1566 1.0402982e+09 0.092177177 0.027069100 105.45146 22.614735 6650.3113 1.0072737e+09 0.091414231 0.026326504 105.49279 22.517034 6652.4660 9.7169275e+08 0.091012522 0.027378745 105.54189 22.405757 6654.6208 9.3095299e+08 0.090221372 0.027771778 105.59262 22.291614 6656.7755 8.8882405e+08 0.088519875 0.028704052 105.63903 22.185037 6658.9302 8.5197175e+08 0.087078225 0.031710817 105.68036 22.087336 6661.0849 8.2252441e+08 0.085817793 0.032578207 105.72170 21.989635 6663.2397 7.9351560e+08 0.084637748 0.032416798 105.76303 21.891923 6665.3944 7.6911363e+08 0.084172559 0.027900923 105.80437 21.794208 6667.5491 7.4058394e+08 0.083614159 0.027305154 105.84701 21.694222 6669.7038 7.1159683e+08 0.082798064 0.027632819 105.89774 21.580080 6671.8586 6.8563352e+08 0.082592852 0.026877584 105.94847 21.465937 6674.0133 6.5672484e+08 0.081795206 0.028965995 105.99194 21.364500 6676.1680 6.3317472e+08 0.079456412 0.031822003 106.03328 21.266799 6678.3227 6.0986743e+08 0.078440972 0.030720757 106.07461 21.169097 6680.4775 5.9425389e+08 0.078754025 0.029544519 106.11595 21.071396 6682.6322 5.7837800e+08 0.079237327 0.030907554 106.15728 20.973695 6684.7869 5.6245119e+08 0.079002441 0.032694024 106.20095 20.870492 6686.9416 5.4479573e+08 0.077286210 0.034308940 106.24745 20.760575 6689.0964 5.2069140e+08 0.074413339 0.033929288 106.29351 20.651696 6691.2511 4.9990125e+08 0.073384500 0.032942024 106.33486 20.553981 6693.4058 4.8054090e+08 0.072360357 0.031464872 106.37620 20.456267 6695.5605 4.6793558e+08 0.071828456 0.029756511 106.41973 20.353377 6697.7153 4.5489644e+08 0.071065888 0.030181782 106.46623 20.243462 6699.8700 4.3906469e+08 0.069614990 0.030787688 106.51243 20.134042 6702.0247 4.2186706e+08 0.068002218 0.032896459 106.55376 20.032584 6704.1794 4.0818945e+08 0.068433240 0.036265664 106.59510 19.931126 6706.3342 3.9505513e+08 0.068399697 0.039027979 106.63681 19.826305 6708.4889 3.8374443e+08 0.067970075 0.040575954 106.67908 19.716388 6710.6436 3.7160566e+08 0.066524496 0.040622473 106.72149 19.606472 6712.7983 3.5454119e+08 0.064608690 0.043312196 106.76800 19.496556 6714.9531 3.3960808e+08 0.062691213 0.047375059 106.81450 19.386640 6717.1078 3.2556984e+08 0.060708924 0.049867602 106.85756 19.284859 6719.2625 3.1278098e+08 0.058690514 0.051120437 106.89890 19.187144 6721.4172 3.0582332e+08 0.059011932 0.050429613 106.94027 19.089384 6723.5720 2.9568778e+08 0.057470953 0.049687935 106.98678 18.983695 6725.7267 2.8780583e+08 0.053400537 0.041122096 107.03328 18.878007 6727.8814 2.7963572e+08 0.052469284 0.039786098 107.07708 18.769612 6730.0361 2.6508115e+08 0.051267338 0.040428445 107.11935 18.659696 6732.1909 2.5574689e+08 0.049635672 0.043775346 107.16137 18.553138 6734.3456 2.4697945e+08 0.048940423 0.049332807 107.20270 18.455436 6736.5003 2.4248167e+08 0.050542883 0.052246452 107.24404 18.357735 6738.6550 2.3852718e+08 0.051351170 0.060927352 107.28595 18.252536 6740.8098 2.2813467e+08 0.050427407 0.065433696 107.32822 18.142620 6742.9645 2.2073325e+08 0.046967015 0.070960898 107.37050 18.032705 6745.1192 2.1165251e+08 0.043692575 0.078617001 107.41277 17.922789 6747.2739 2.0484483e+08 0.039155647 0.067266856 107.45505 17.812873 6749.4287 1.9838433e+08 0.038162803 0.072160566 107.50106 17.702958 6751.5834 1.9202717e+08 0.034968271 0.073958329 107.54756 17.593043 6753.7381 1.8587211e+08 0.033115030 0.075365945 107.59187 17.485315 6755.8928 1.7636115e+08 0.030738787 0.074213894 107.63415 17.379626 6758.0476 1.7093433e+08 0.029931295 0.073805893 107.67642 17.273292 6760.2023 1.6386532e+08 0.030446367 0.076447018 107.71871 17.163360 6762.3570 1.5935273e+08 0.034483172 0.077474959 107.76099 17.053428 6764.5117 1.5383255e+08 0.037185815 0.079507801 107.80326 16.943509 6766.6665 1.4480062e+08 0.037716905 0.081221291 107.84554 16.833593 6768.8212 1.3995740e+08 0.033203528 0.083810841 107.88960 16.725459 6770.9759 1.3522954e+08 0.029003671 0.089246711 107.93610 16.619771 6773.1306 1.3333305e+08 0.024905834 0.094472866 107.98237 16.513846 6775.2854 1.3060819e+08 0.020814657 0.099699022 108.02465 16.403930 6777.4401 1.2721630e+08 0.016722166 0.10492518 108.06692 16.294014 6779.5948 1.2317608e+08 0.012629223 0.11015133 108.10919 16.184098 6781.7495 1.1877043e+08 0.0085305806 0.11537749 108.15147 16.074181 6783.9043 1.1529832e+08 0.0044337333 0.12060364 108.19374 15.965640 6786.0590 1.1099425e+08 0.00032664612 0.12582980 108.23602 15.859951 6788.2137 1.0489203e+08 -0.0038036039 0.13105596 108.27829 15.754263 6790.3684 1.0140694e+08 -0.0078984606 0.13628211 108.31651 15.644518 6792.5232 97103056. -0.011992028 0.14150827 108.35456 15.534602 6794.6779 93123566. -0.016069710 0.14673442 108.39512 15.427199 6796.8326 92171043. -0.020063656 0.15196058 108.43740 15.321510 6798.9873 87596688. -0.024170590 0.15718673 108.47967 15.214851 6801.1421 88420293. -0.028107805 0.16241289 108.52195 15.104919 6803.2968 84649777. -0.032215615 0.16763905 108.56424 14.994987 6805.4515 80342875. -0.036384346 0.17286520 108.61172 14.875695 6807.6062 74699355. -0.040680771 0.17809136 108.66003 14.754926 6809.7610 70754981. -0.044972613 0.18331751 108.70355 14.642757 6811.9157 66976646. -0.049352046 0.18854367 108.74583 14.532825 6814.0704 64159681. -0.053803197 0.19376982 108.78630 14.424712 6816.2251 65492055. -0.058027298 0.19899598 108.82435 14.319024 6818.3799 63308775. -0.062878678 0.20422214 108.86305 14.212384 6820.5346 62250684. -0.068105373 0.20944829 108.91136 14.091594 6822.6893 56985883. -0.075144103 0.21467445 108.95967 13.970815 6824.8440 53474820. -0.085613145 0.21990060 109.00199 13.860817 6826.9988 52789425. -0.12430511 0.22512676 109.04427 13.750901 6829.1535 50673170. -0.099773425 0.23035291 109.08730 13.634158 6831.3082 47713506. -0.036956987 0.23557907 109.13079 13.513368