# # 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 = 84.854071 km # Date (UTC) = 2013-12-09T09:40:45.749 # Date (julian) = 2456635.90330727 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6503.5045 4.6836777e+10 0.059507105 0.033339973 110.42716 28.705691 6506.4849 4.1904768e+10 0.071559303 0.034238718 110.50396 28.550245 6509.4654 3.7488849e+10 0.083903204 0.035137463 110.57154 28.409886 6512.4458 3.3903596e+10 0.096734806 0.036036208 110.63911 28.267297 6515.4262 3.0793160e+10 0.11007683 0.036934953 110.70668 28.121759 6518.4067 2.8023301e+10 0.12394609 0.037833699 110.77425 27.978857 6521.3871 2.5366774e+10 0.13828062 0.038732444 110.84183 27.838518 6524.3676 2.2933782e+10 0.14664151 0.039557545 110.90940 27.698179 6527.3480 2.0735504e+10 0.15251562 0.040969141 110.97697 27.557839 6530.3285 1.8811887e+10 0.15672338 0.044288548 111.04454 27.414060 6533.3089 1.7105123e+10 0.15997757 0.047650866 111.11212 27.268503 6536.2894 1.5416935e+10 0.16051588 0.048049398 111.18591 27.113880 6539.2698 1.3823898e+10 0.16239333 0.049970218 111.26172 26.956440 6542.2502 1.2369412e+10 0.16288102 0.051097246 111.32929 26.816101 6545.2307 1.1144017e+10 0.16355927 0.052457634 111.39633 26.675234 6548.2111 1.0141307e+10 0.16383767 0.053730699 111.45870 26.529697 6551.1916 9.2329004e+09 0.16365779 0.055302999 111.52200 26.385079 6554.1720 8.4210589e+09 0.16226794 0.054835990 111.58958 26.244720 6557.1525 7.6931761e+09 0.15980320 0.053770539 111.65584 26.104367 6560.1329 7.0525172e+09 0.15601364 0.052154470 111.71821 25.964028 6563.1134 6.5098743e+09 0.15190904 0.049797237 111.78058 25.823689 6566.0938 6.0395845e+09 0.14867926 0.047129820 111.84295 25.683349 6569.0742 5.5885207e+09 0.14665484 0.044857257 111.91087 25.535884 6572.0547 5.1454078e+09 0.14533524 0.044198835 111.98689 25.378000 6575.0351 4.7139502e+09 0.14320788 0.042339455 112.05341 25.232326 6578.0156 4.3252827e+09 0.14060052 0.038625011 112.11578 25.091986 6580.9960 4.0062237e+09 0.13775712 0.035600282 112.17816 24.951632 6583.9765 3.7276035e+09 0.13571433 0.034527421 112.24054 24.811275 6586.9569 3.4824628e+09 0.13389826 0.033158926 112.30292 24.670933 6589.9374 3.2736119e+09 0.13179923 0.031186343 112.36530 24.530593 6592.9178 3.0948708e+09 0.12880483 0.027182059 112.42767 24.390253 6595.8982 2.9343489e+09 0.12524730 0.025716722 112.49005 24.249832 6598.8787 2.7678812e+09 0.12266185 0.024987647 112.55436 24.092017 6601.8591 2.5996430e+09 0.12241791 0.027450294 112.61812 23.939224 6604.8396 2.4371020e+09 0.12099153 0.026569791 112.68050 23.798866 6607.8200 2.2957939e+09 0.11861795 0.024087754 112.74288 23.658515 6610.8005 2.1737236e+09 0.11395667 0.024767809 112.80525 23.518176 6613.7809 2.0580103e+09 0.11173137 0.023860109 112.86532 23.377836 6616.7614 1.9482965e+09 0.10923131 0.023401794 112.92250 23.237497 6619.7418 1.8353778e+09 0.10764072 0.024704899 112.98642 23.088050 6622.7222 1.7212998e+09 0.10534013 0.024565755 113.05659 22.930165 6625.7027 1.6139060e+09 0.10314690 0.026236126 113.11625 22.790678 6628.6831 1.5191215e+09 0.10111241 0.025980455 113.17343 22.655536 6631.6636 1.4383313e+09 0.099432846 0.025998172 113.23061 22.515778 6634.6440 1.3640630e+09 0.098054714 0.026373821 113.28779 22.375421 6637.6245 1.3010410e+09 0.096628773 0.025855566 113.34997 22.235081 6640.6049 1.2383245e+09 0.096797073 0.025196640 113.41241 22.094084 6643.5854 1.1706323e+09 0.096430650 0.025281000 113.47673 21.936198 6646.5658 1.1058376e+09 0.095266189 0.026213025 113.53871 21.785758 6649.5462 1.0441174e+09 0.094165711 0.026880713 113.59589 21.650617 6652.5267 9.9347127e+08 0.093690736 0.027395435 113.65307 21.513370 6655.5071 9.5021241e+08 0.091970039 0.027819766 113.71025 21.373012 6658.4876 9.0093216e+08 0.089731794 0.030925813 113.77086 21.227051 6661.4680 8.5108632e+08 0.087791443 0.032773325 113.83518 21.075015 6664.4485 8.0871745e+08 0.086201809 0.030565158 113.89401 20.931981 6667.4289 7.6978654e+08 0.085645634 0.027261005 113.95118 20.791640 6670.4094 7.3366691e+08 0.084625799 0.027138983 114.01440 20.636461 6673.3898 6.9468620e+08 0.083829694 0.028042196 114.07776 20.481662 6676.3702 6.5843330e+08 0.080811181 0.031952346 114.13493 20.346521 6679.3507 6.2422942e+08 0.079675862 0.029977976 114.19238 20.207801 6682.3311 5.9351021e+08 0.080558151 0.030677543 114.25086 20.055764 6685.3116 5.6760898e+08 0.080060985 0.033033943 114.30869 19.909585 6688.2920 5.3785444e+08 0.076754830 0.033852600 114.36587 19.769226 6691.2725 5.1423258e+08 0.074532804 0.032936978 114.42380 19.622118 6694.2529 4.8703705e+08 0.073355728 0.030906555 114.48227 19.470082 6697.2334 4.6344523e+08 0.073019808 0.030120797 114.53962 19.328197 6700.2138 4.4608182e+08 0.071158993 0.030826302 114.59680 19.187858 6703.1942 4.2531026e+08 0.070282481 0.034161302 114.65520 19.036476 6706.1747 4.0680648e+08 0.070391556 0.038750441 114.71337 18.888390 6709.1551 3.8566411e+08 0.069750739 0.041033869 114.77055 18.753248 6712.1356 3.6764938e+08 0.067256319 0.042081686 114.82813 18.611055 6715.1160 3.5417258e+08 0.064672235 0.047497255 114.88661 18.453171 6718.0965 3.3939446e+08 0.061917823 0.049962657 114.94119 18.308919 6721.0769 3.2493909e+08 0.061283832 0.050327073 114.99317 18.173759 6724.0574 3.1076354e+08 0.059075628 0.049447686 115.05350 18.027187 6727.0378 2.9640532e+08 0.054840721 0.040910023 115.11782 17.875151 6730.0182 2.8468021e+08 0.053688953 0.040403921 115.17650 17.723114 6732.9987 2.7080300e+08 0.051922912 0.043924065 115.23497 17.571077 6735.9791 2.5805349e+08 0.052928610 0.050332857 115.29345 17.419039 6738.9596 2.4707829e+08 0.054292726 0.062604021 115.34837 17.276225 6741.9400 2.3604556e+08 0.052029265 0.068439696 115.40035 17.141083 6744.9205 2.2890568e+08 0.046728765 0.078505371 115.45637 16.995433 6747.9009 2.1865460e+08 0.042294018 0.067051011 115.51484 16.843396 6750.8814 2.1037074e+08 0.039375239 0.073509085 115.57333 16.691338 6753.8618 2.0258910e+08 0.035987157 0.075766238 115.63182 16.539283 6756.8422 1.9407758e+08 0.032535049 0.076334133 115.69029 16.387246 6759.8227 1.9107693e+08 0.033551037 0.076018483 115.74877 16.235208 6762.8031 1.8451578e+08 0.038602220 0.076755322 115.80724 16.083170 6765.7836 1.7504464e+08 0.041933391 0.079674239 115.86572 15.931134 6768.7640 1.6258027e+08 0.037674665 0.083605164 115.92377 15.779097 6771.7445 1.5116036e+08 0.032412549 0.091110804 115.97640 15.627060 6774.7249 1.4561434e+08 0.027153235 0.098339692 116.03115 15.475023 6777.7054 1.4239236e+08 0.021820889 0.10556858 116.08962 15.322987 6780.6858 1.3847806e+08 0.016508510 0.11279747 116.14810 15.170950 6783.6662 1.3442763e+08 0.011196232 0.12002636 116.20657 15.018912 6786.6467 1.2991846e+08 0.0058996891 0.12725524 116.25954 14.866875 6789.6271 1.2483583e+08 0.00062256598 0.13448413 116.31353 14.716190 6792.6076 1.2041728e+08 -0.0046785116 0.14171302 116.37200 14.570001 6795.5880 1.1629069e+08 -0.0099926196 0.14894191 116.43048 14.420752 6798.5685 1.1428920e+08 -0.015384355 0.15617080 116.48896 14.268692 6801.5489 1.0857425e+08 -0.020645212 0.16339969 116.54270 14.116651 6804.5294 1.0457005e+08 -0.025971968 0.17062857 116.59591 13.964614 6807.5098 1.0190297e+08 -0.031351730 0.17785746 116.65439 13.812577 6810.4902 96848815. -0.036646578 0.18508635 116.71352 13.654658 6813.4707 95682304. -0.042086753 0.19231524 116.77367 13.487581 6816.4511 95147219. -0.047557696 0.19954413 116.82709 13.333961 6819.4316 92926058. -0.052967143 0.20677301 116.88234 13.179147 6822.4120 90586914. -0.058350742 0.21400190 116.94917 13.012070 6825.3925 83730658. -0.063582360 0.22123079 117.00623 12.855345 6828.3729 78725060. -0.068841603 0.22845968 117.05885 12.703307 6831.3534 78335207. -0.074224526 0.23568857 117.11148 12.556990 6834.3338 75804810. -0.079557379 0.24291745 117.16613 12.403408 6837.3142 73162583. -0.084899479 0.25014634 117.22627 12.229648 6840.2947 71865185. -0.090284607 0.25737523 117.29158 12.061046 6843.2751 70929147. -0.095682387 0.26460412 117.35450 11.898113 6846.2556 69549470. -0.10107785 0.27183301 117.40713 11.746076 6849.2360 66917475. -0.10646861 0.27906189 117.46401 11.585536 6852.2165 62771383. -0.11186465 0.28629078 117.52415 11.417996 6855.1969 60835584. -0.11729517 0.29351967 117.58430 11.244236 6858.1774 59031458. -0.12273856 0.30074856 117.64014 11.086267 6861.1578 58476148. -0.12818651 0.30797745 117.69277 10.940078 6864.1382 57326196. -0.13364204 0.31520634 117.75189 10.775870 6867.1187 56425843. -0.13910092 0.32243522 117.81203 10.608793 6870.0991 55313027. -0.14456915 0.32966411 117.87218 10.441716 6873.0796 53743886. -0.15006070 0.33689300 117.93233 10.268823 6876.0600 53481913. -0.15551127 0.34412189 117.99248 10.097560 6879.0405 51226781. -0.16105565 0.35135078 118.05262 9.9304825 6882.0209 51687746. -0.16647170 0.35857966 118.11277 9.7634055 6885.0014 50369248. -0.17198633 0.36580855 118.17038 9.5963280 6887.9818 48487493. -0.17754670 0.37303744 118.22384 9.4292499 6890.9622 47134085. -0.18307343 0.38026633 118.28322 9.2621737 6893.9427 44796077. -0.18870560 0.38749522 118.34337 9.0925008 6896.9231 46171725. -0.19395787 0.39472410 118.40352 8.9187393 6899.9036 47521100. -0.19920358 0.40195299 118.47261 8.7260948 6902.8840 47664007. -0.20457126 0.40918188 118.53667 8.5481450 6905.8645 46083813. -0.21014408 0.41641077 118.59605 8.3810671 6908.8449 43956248. -0.21583158 0.42363966 118.64952 8.2139912 6911.8254 43151712. -0.22137213 0.43086854 118.71330 8.0297297 6914.8058 44322387. -0.22662097 0.43809743 118.78012 7.8441156 6917.7862 43626289. -0.23218067 0.44532632 118.84027 7.6770374 6920.7667 42663026. -0.23783315 0.45255521 118.90227 7.4866482 6923.7471 43063624. -0.24328368 0.45978410 118.96340 7.3072062 6926.7276 42455960. -0.24898983 0.46701299 119.02368 7.1389455 6929.7080 43308381. -0.25447748 0.47424187 119.08606 6.9518122 6932.6885 42665564. -0.26041471 0.48147076 119.15450 6.7586240 6935.6689 41350326. -0.26675406 0.48869965 119.22082 6.5636952 6938.6494 40349299. -0.27340577 0.49592854 119.28484 6.3687674 6941.6298 37632848. -0.28141717 0.50315743 119.35502 6.1738371 6944.6102 35225764. -0.29102579 0.51038631 119.40967 6.0047839 6947.5907 33407654. -0.30458550 0.51761520 119.47037 5.8290296 6950.5711 32635417. -0.35293537 0.52484409 119.54124 5.6348781 6953.5516 30169156. -0.32674524 0.53207298 119.61570 5.4041720 6956.5320 28041619. -0.24372804 0.53930187 119.68587 5.2092417