# # 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 = 65.955299 km # Date (UTC) = 2014-12-15T09:44:27.865 # Date (julian) = 2457006.90587807 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6496.3209 6.2509888e+10 0.034087150 0.031173801 110.13686 28.021387 6498.8404 5.7856063e+10 0.042330571 0.031933524 110.19398 27.900197 6501.3598 5.3184789e+10 0.050682748 0.032693247 110.25110 27.781566 6503.8792 4.8881673e+10 0.059263505 0.033452970 110.30885 27.662935 6506.3986 4.5062782e+10 0.068225740 0.034212693 110.37036 27.544303 6508.9180 4.1735010e+10 0.077712564 0.034972416 110.43188 27.425672 6511.4374 3.8737264e+10 0.087847141 0.035732139 110.48957 27.307041 6513.9569 3.5876071e+10 0.098681500 0.036491862 110.54669 27.188409 6516.4763 3.3259985e+10 0.11032219 0.037251585 110.60381 27.067168 6518.9957 3.0782584e+10 0.12278979 0.038011308 110.66094 26.944127 6521.5151 2.8408978e+10 0.13602019 0.038771031 110.71806 26.822481 6524.0345 2.6154954e+10 0.14410578 0.039439222 110.77518 26.703850 6526.5539 2.3981798e+10 0.15089121 0.040248818 110.83230 26.585218 6529.0733 2.2018982e+10 0.15665021 0.042352618 110.88942 26.466587 6531.5928 2.0209336e+10 0.16247150 0.046091450 110.94654 26.347955 6534.1122 1.8508914e+10 0.16658370 0.047975937 111.00030 26.229324 6536.6316 1.6926158e+10 0.16923326 0.048355602 111.05303 26.110693 6539.1510 1.5495387e+10 0.17141533 0.049826418 111.10790 25.992054 6541.6704 1.4227797e+10 0.17175012 0.051109117 111.16503 25.873408 6544.1898 1.3023730e+10 0.17045069 0.051798347 111.22262 25.751609 6546.7093 1.1824688e+10 0.16867333 0.053048126 111.28194 25.618147 6549.2287 1.0672907e+10 0.16625114 0.054199311 111.34084 25.487498 6551.7481 9.6625066e+09 0.16458970 0.055498340 111.39795 25.368866 6554.2675 8.8294612e+09 0.16220765 0.054837994 111.45507 25.250235 6556.7869 8.1420701e+09 0.16015547 0.053897435 111.50818 25.131604 6559.3063 7.5402848e+09 0.15751822 0.052352606 111.56090 25.012972 6561.8257 6.9963749e+09 0.15494706 0.050965773 111.61643 24.894331 6564.3452 6.5134265e+09 0.15222065 0.048615171 111.67356 24.775685 6566.8646 6.0656907e+09 0.15043988 0.046693797 111.72909 24.657044 6569.3840 5.6688198e+09 0.14878285 0.044877416 111.78182 24.538413 6571.9034 5.2984754e+09 0.14754783 0.044256538 111.83454 24.419782 6574.4228 4.9537214e+09 0.14543452 0.042651926 111.88727 24.301150 6576.9422 4.6357306e+09 0.14338823 0.040286861 111.93999 24.182519 6579.4617 4.3424970e+09 0.14071229 0.036816708 111.99271 24.063887 6581.9811 4.0879745e+09 0.13848304 0.035299529 112.04544 23.945256 6584.5005 3.8484391e+09 0.13619083 0.034242880 112.09817 23.826617 6587.0199 3.6293389e+09 0.13394912 0.033162778 112.15090 23.707970 6589.5393 3.4230719e+09 0.13152307 0.031976033 112.20363 23.589328 6592.0587 3.2349696e+09 0.12840048 0.028016485 112.25636 23.470696 6594.5781 3.0600506e+09 0.12512067 0.025855152 112.30908 23.352065 6597.0976 2.8948991e+09 0.12163004 0.025691942 112.36181 23.237751 6599.6170 2.7436473e+09 0.11973343 0.024966838 112.41453 23.123513 6602.1364 2.6021001e+09 0.11929683 0.027400246 112.46415 23.006171 6604.6558 2.4701495e+09 0.11839531 0.026460670 112.51248 22.887540 6607.1752 2.3446377e+09 0.11755895 0.025361006 112.56271 22.768902 6609.6946 2.2282579e+09 0.11459394 0.023912270 112.61544 22.650255 6612.2140 2.1179360e+09 0.11237193 0.024160823 112.66749 22.532292 6614.7335 2.0142178e+09 0.11157746 0.023435165 112.71582 22.418055 6617.2529 1.9173054e+09 0.11042340 0.023523090 112.76415 22.303818 6619.7723 1.8326348e+09 0.10995665 0.024712256 112.81635 22.185718 6622.2917 1.7603803e+09 0.10866841 0.024680349 112.86907 22.067086 6624.8111 1.6858181e+09 0.10698352 0.025296500 112.92279 21.939510 6627.3305 1.5985915e+09 0.10499254 0.025444493 112.97717 21.806048 6629.8500 1.5090427e+09 0.10379865 0.025955430 113.03058 21.683737 6632.3694 1.4258721e+09 0.10197004 0.026076636 113.08331 21.569500 6634.8888 1.3569804e+09 0.10033886 0.026391675 113.13470 21.453922 6637.4082 1.3023500e+09 0.098531872 0.025961488 113.18304 21.335275 6639.9276 1.2517576e+09 0.097913114 0.025296524 113.23138 21.216753 6642.4470 1.1989504e+09 0.097631757 0.025169990 113.27971 21.102515 6644.9664 1.1478803e+09 0.096228659 0.025448058 113.32803 20.988277 6647.4859 1.0947987e+09 0.094566676 0.026693588 113.37636 20.870734 6650.0053 1.0493469e+09 0.093215131 0.026256445 113.42470 20.752103 6652.5247 1.0076491e+09 0.092214959 0.027394885 113.47591 20.628761 6655.0441 9.6447960e+08 0.090784810 0.027628441 113.53028 20.500242 6657.5635 9.2122501e+08 0.088736886 0.029554779 113.58192 20.376199 6660.0829 8.7636397e+08 0.087328885 0.031701384 113.63025 20.257552 6662.6024 8.3880747e+08 0.085875457 0.032706316 113.67859 20.139689 6665.1218 8.0730690e+08 0.085189248 0.028347609 113.72692 20.025451 6667.6412 7.7813419e+08 0.084609100 0.027338975 113.77525 19.911213 6670.1606 7.4584846e+08 0.083953021 0.027254230 113.82904 19.784096 6672.6800 7.1373971e+08 0.083629046 0.027273747 113.88341 19.655577 6675.1994 6.7802299e+08 0.081947916 0.030180337 113.93247 19.535748 6677.7188 6.4527131e+08 0.080073023 0.031336306 113.98080 19.417117 6680.2383 6.1916808e+08 0.080238486 0.029492866 114.02914 19.301135 6682.7577 5.9602984e+08 0.080932253 0.031003435 114.07747 19.186898 6685.2771 5.7585131e+08 0.080580687 0.032997513 114.12616 19.067986 6687.7965 5.5212794e+08 0.078108136 0.033898681 114.17560 18.939447 6690.3159 5.2427615e+08 0.075811810 0.033079659 114.22470 18.815257 6692.8353 4.9940522e+08 0.074658732 0.031795304 114.27303 18.701020 6695.3548 4.7839903e+08 0.073864683 0.029794310 114.32124 18.586782 6697.8742 4.6219931e+08 0.072865964 0.030201893 114.36517 18.472545 6700.3936 4.4828683e+08 0.070701678 0.030959649 114.40911 18.358308 6702.9130 4.3107750e+08 0.069608147 0.033605762 114.46090 18.229609 6705.4324 4.1267408e+08 0.069534100 0.037437347 114.51527 18.096147 6707.9518 3.9449421e+08 0.068995148 0.040050478 114.56204 17.976702 6710.4712 3.7797238e+08 0.067354687 0.040588735 114.60597 17.862464 6712.9907 3.6360098e+08 0.064998295 0.043669278 114.65464 17.741745 6715.5101 3.4852686e+08 0.062748056 0.047900276 114.70903 17.613208 6718.0295 3.3244826e+08 0.060469739 0.049858339 114.76128 17.484678 6720.5489 3.1379783e+08 0.059722785 0.050356166 114.81071 17.356159 6723.0683 2.9882239e+08 0.058939336 0.049407046 114.85790 17.233459 6725.5877 2.8675474e+08 0.054510849 0.041208891 114.90184 17.119221 6728.1071 2.7638863e+08 0.053538228 0.039779964 114.94715 17.003107 6730.6266 2.7131856e+08 0.051818689 0.041237998 115.00152 16.874587 6733.1460 2.6032589e+08 0.050399083 0.044716869 115.05536 16.746068 6735.6654 2.4912005e+08 0.051220719 0.049999797 115.10479 16.617548 6738.1848 2.3753384e+08 0.052803605 0.058338552 115.15375 16.490248 6740.7042 2.2872395e+08 0.052086444 0.065253409 115.19769 16.376010 6743.2236 2.2380040e+08 0.047924668 0.072556109 115.24163 16.261773 6745.7431 2.1707679e+08 0.045096811 0.078879261 115.29001 16.139962 6748.2625 2.0871927e+08 0.040918903 0.068397765 115.33945 16.016367 6750.7819 1.9900882e+08 0.038095772 0.073339232 115.38888 15.888899 6753.3013 1.9072857e+08 0.035111663 0.073952354 115.43831 15.760379 6755.8207 1.8171430e+08 0.032559739 0.074245514 115.48775 15.631860 6758.3401 1.7266264e+08 0.031863583 0.074424575 115.53718 15.503341 6760.8595 1.6679925e+08 0.032326624 0.077700387 115.58254 15.385398 6763.3790 1.6366325e+08 0.037909414 0.077591900 115.62648 15.271161 6765.8984 1.5889976e+08 0.040263881 0.079695195 115.67297 15.150288 6768.4178 1.5163855e+08 0.036553062 0.082359340 115.72240 15.021769 6770.9372 1.4292194e+08 0.031711881 0.089152841 115.76964 14.895432 6773.4566 1.3562235e+08 0.027290556 0.095263530 115.81413 14.771856 6775.9760 1.3233238e+08 0.022799203 0.10137422 115.86069 14.646211 6778.4955 1.2993912e+08 0.018290775 0.10748491 115.91012 14.517691 6781.0149 1.2521944e+08 0.013828623 0.11359560 115.95955 14.389172 6783.5343 1.1881956e+08 0.0094058391 0.11970629 116.00898 14.260653 6786.0537 1.1287064e+08 0.0049789268 0.12581698 116.05841 14.133968 6788.5731 1.0858126e+08 0.00052416047 0.13192767 116.10785 14.010374 6791.0925 1.0788853e+08 -0.0040051330 0.13803836 116.15778 13.878635 6793.6119 1.0346548e+08 -0.0084505260 0.14414905 116.20863 13.731753 6796.1314 97752833. -0.012863145 0.15025974 116.25865 13.598379 6798.6508 93826699. -0.017308773 0.15637043 116.30808 13.474803 6801.1702 89979340. -0.021750158 0.16248112 116.35476 13.348475 6803.6896 87445511. -0.026214429 0.16859181 116.39925 13.219955 6806.2090 83030222. -0.030629040 0.17470249 116.44637 13.094073 6808.7284 80020980. -0.035072994 0.18081318 116.49580 12.970497 6811.2479 77927670. -0.039534789 0.18692387 116.54271 12.844398 6813.7673 76871163. -0.044019590 0.19303456 116.58720 12.715878 6816.2867 73784492. -0.048448905 0.19914525 116.63753 12.581163 6818.8061 71893982. -0.052906768 0.20525594 116.69403 12.439930 6821.3255 67453736. -0.057274276 0.21136663 116.74191 12.307817 6823.8449 65513147. -0.061681741 0.21747732 116.78640 12.179298 6826.3643 62595218. -0.066030378 0.22358801 116.83922 12.041952 6828.8838 62358807. -0.070440686 0.22969870 116.89571 11.900718 6831.4032 63153024. -0.074875424 0.23580939 116.94111 11.775802 6833.9226 61226942. -0.079237322 0.24192008 116.98560 11.652226 6836.4420 60722680. -0.083634418 0.24803077 117.03581 11.507650 6838.9614 55200334. -0.087877718 0.25414146 117.08583 11.363819 6841.4808 52983426. -0.092206682 0.26025215 117.13031 11.240243 6844.0002 50214715. -0.096506073 0.26636284 117.17609 11.114762 6846.5197 48911839. -0.10085017 0.27247353 117.23259 10.973529 6849.0391 48215115. -0.10521016 0.27858422 117.28717 10.832296 6851.5585 47612184. -0.10957252 0.28469491 117.33802 10.691063 6854.0779 45586648. -0.11386446 0.29080560 117.38525 10.559852 6856.5973 42823593. -0.11810408 0.29691629 117.42974 10.436276 6859.1167 41193336. -0.12237760 0.30302698 117.47769 10.300008 6861.6362 39520757. -0.12662922 0.30913767 117.52853 10.153125 6864.1556 40210511. -0.13099598 0.31524836 117.57938 10.010619 6866.6750 43108191. -0.13547134 0.32135904 117.63022 9.8693858 6869.1944 41656849. -0.13968256 0.32746973 117.68106 9.7281531 6871.7138 42466902. -0.14397388 0.33358042 117.73191 9.5869201 6874.2332 40679777. -0.14797262 0.33969111 117.78275 9.4456864 6876.7526 37303999. -0.15183611 0.34580180 117.83360 9.3044531 6879.2721 36686578. -0.15396970 0.35191249 117.88444 9.1632203 6881.7915 35563049. -0.16033050 0.35802318 117.93528 9.0219876 6884.3109 37919271. -0.16912654 0.36413387 117.98613 8.8807548