# # 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 = 59.726782 km # Date (UTC) = 2011-11-28T10:52:30.782 # Date (julian) = 2455893.95313405 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6502.6927 1.3688940e+11 0.058998589 0.033095177 89.520849 33.645024 6505.3738 1.1314625e+11 0.069718344 0.033903674 89.603506 33.482986 6508.0550 9.3516990e+10 0.080487715 0.034712170 89.677151 33.335696 6510.7361 7.9024363e+10 0.091522768 0.035520666 89.750797 33.188406 6513.4173 6.7736573e+10 0.10289475 0.036329162 89.824441 33.041116 6516.0985 5.8710226e+10 0.11467683 0.037137659 89.898087 32.893824 6518.7796 5.1359910e+10 0.12694550 0.037946155 89.971732 32.746532 6521.4608 4.5217795e+10 0.13973742 0.038754651 90.045385 32.599225 6524.1419 4.0122805e+10 0.14701122 0.039477385 90.119041 32.451913 6526.8231 3.5748792e+10 0.15274570 0.040531010 90.188212 32.304619 6529.5043 3.2018791e+10 0.15687605 0.043039023 90.256600 32.157329 6532.1854 2.8812772e+10 0.16091633 0.046839087 90.329983 32.010038 6534.8666 2.6014279e+10 0.16306664 0.048186972 90.403369 31.863006 6537.5477 2.3652398e+10 0.16430038 0.048943458 90.471753 31.720975 6540.2289 2.1486439e+10 0.16587400 0.050962237 90.541586 31.575045 6542.9101 1.9393389e+10 0.16571733 0.051347744 90.619745 31.406708 6545.5912 1.7429639e+10 0.16560979 0.052460864 90.695715 31.248577 6548.2724 1.5664164e+10 0.16530867 0.053748985 90.769360 31.101288 6550.9535 1.4252778e+10 0.16385954 0.055224115 90.839933 30.953997 6553.6347 1.3091713e+10 0.16205454 0.055016019 90.908316 30.806705 6556.3158 1.2058801e+10 0.15933478 0.053966691 90.976700 30.659414 6558.9970 1.1128705e+10 0.15642922 0.052389735 91.045083 30.512123 6561.6782 1.0286858e+10 0.15361401 0.051038498 91.109356 30.364833 6564.3593 9.5347271e+09 0.15065857 0.048608753 91.172482 30.217542 6567.0405 8.8392982e+09 0.14870031 0.046582961 91.240240 30.070251 6569.7216 8.1945353e+09 0.14706975 0.044899392 91.308623 29.922961 6572.4028 7.6030679e+09 0.14548372 0.043999484 91.377021 29.780804 6575.0840 7.0627808e+09 0.14347838 0.042290474 91.445001 29.638337 6577.7651 6.5851704e+09 0.14098107 0.039018564 91.508123 29.491047 6580.4463 6.1490055e+09 0.13834888 0.036108333 91.572183 29.343756 6583.1274 5.7488704e+09 0.13622257 0.034957166 91.640571 29.196465 6585.8086 5.3783281e+09 0.13382885 0.033324324 91.707499 29.050632 6588.4897 5.0334406e+09 0.13192607 0.033216378 91.770621 28.908601 6591.1709 4.6973354e+09 0.12901337 0.029009061 91.833744 28.764592 6593.8521 4.3825236e+09 0.12621088 0.026310058 91.896870 28.617302 6596.5332 4.0901566e+09 0.12284681 0.025724849 91.962495 28.470012 6599.2144 3.8177749e+09 0.12041678 0.024942624 92.030878 28.322720 6601.8955 3.5803125e+09 0.11969747 0.027467439 92.096243 28.178449 6604.5767 3.3547894e+09 0.11769941 0.026413702 92.159369 28.036419 6607.2579 3.1451391e+09 0.11552787 0.025197821 92.222495 27.890847 6609.9390 2.9530056e+09 0.11124457 0.023984864 92.285621 27.743556 6612.6202 2.7721519e+09 0.10840438 0.023857380 92.344685 27.600327 6615.3013 2.6108657e+09 0.10696055 0.023260803 92.402549 27.458298 6617.9825 2.4627143e+09 0.10622403 0.023764992 92.465002 27.311666 6620.6637 2.3255914e+09 0.10570269 0.024981059 92.528133 27.164353 6623.3448 2.1961281e+09 0.10426385 0.024619573 92.591260 27.022166 6626.0260 2.0762270e+09 0.10298787 0.026557816 92.654020 26.879770 6628.7071 1.9636394e+09 0.10126473 0.025990196 92.711885 26.732480 6631.3883 1.8633316e+09 0.099475883 0.025970208 92.770635 26.586076 6634.0694 1.7744734e+09 0.097800011 0.026331908 92.833757 26.444045 6636.7506 1.6795634e+09 0.096198127 0.026258262 92.897684 26.294979 6639.4318 1.5750714e+09 0.095442530 0.025473753 92.963816 26.126643 6642.1129 1.4710372e+09 0.095953411 0.025156317 93.028133 25.974199 6644.7941 1.3753609e+09 0.094887624 0.025429429 93.091259 25.832168 6647.4752 1.3011416e+09 0.093445791 0.026687995 93.150686 25.690138 6650.1564 1.2374748e+09 0.092317823 0.026291041 93.208550 25.548107 6652.8376 1.1725977e+09 0.091557533 0.027480967 93.266415 25.401857 6655.5187 1.1148058e+09 0.089622232 0.027824550 93.324279 25.254566 6658.1999 1.0576052e+09 0.087387502 0.030415559 93.382144 25.112016 6660.8810 1.0082149e+09 0.085222040 0.032426813 93.440008 24.969985 6663.5622 9.6382155e+08 0.083214907 0.032327416 93.497873 24.827955 6666.2433 9.1568767e+08 0.082552157 0.026956015 93.555739 24.685923 6668.9245 8.7208829e+08 0.080861817 0.028288898 93.613612 24.543871 6671.6057 8.2777157e+08 0.080706255 0.026873980 93.671482 24.400780 6674.2868 7.8606650e+08 0.079676381 0.029196747 93.729343 24.253489 6676.9680 7.5372949e+08 0.077122122 0.032337584 93.787205 24.107762 6679.6491 7.2410211e+08 0.077038981 0.029731349 93.845069 23.965732 6682.3303 6.8787324e+08 0.078195026 0.030676906 93.906211 23.815658 6685.0115 6.5282453e+08 0.078374818 0.032716942 93.972343 23.653335 6687.6926 6.1411156e+08 0.076199674 0.033956620 94.028558 23.505887 6690.3738 5.7738154e+08 0.073999689 0.033073029 94.081161 23.363855 6693.0549 5.5267028e+08 0.072948454 0.031585242 94.138142 23.221825 6695.7361 5.2465894e+08 0.072393174 0.029724262 94.196007 23.079794 6698.4173 5.0400996e+08 0.071265173 0.030790545 94.248976 22.937764 6701.0984 4.8663731e+08 0.068985082 0.031553844 94.301741 22.795733 6703.7796 4.6790519e+08 0.068730934 0.035625968 94.359605 22.653704 6706.4607 4.4814099e+08 0.068597521 0.039248267 94.417761 22.509056 6709.1419 4.2250691e+08 0.067879379 0.041042296 94.477880 22.346731 6711.8230 3.9678306e+08 0.065570617 0.041628634 94.536950 22.193857 6714.5042 3.7536079e+08 0.063046668 0.047341315 94.594814 22.051826 6717.1854 3.6152997e+08 0.060518466 0.049862803 94.649707 21.909796 6719.8665 3.4893547e+08 0.058518938 0.050546580 94.702310 21.767765 6722.5477 3.3345803e+08 0.058108633 0.049928128 94.759902 21.612267 6725.2288 3.1470675e+08 0.053405446 0.041433075 94.819993 21.450020 6727.9100 2.9711562e+08 0.052038070 0.039748008 94.872629 21.307900 6730.5912 2.8311489e+08 0.050296130 0.041189451 94.925239 21.165850 6733.2723 2.7436742e+08 0.048652398 0.045402786 94.977842 21.023819 6735.9535 2.6637052e+08 0.049750346 0.050305615 95.031939 20.877756 6738.6346 2.5647010e+08 0.051077409 0.060815036 95.092063 20.715432 6741.3158 2.4688610e+08 0.049620379 0.066659346 95.148161 20.566787 6743.9970 2.3474258e+08 0.044173650 0.077772837 95.200764 20.430017 6746.6781 2.2438692e+08 0.040221402 0.071103507 95.253367 20.289911 6749.3593 2.1744433e+08 0.037954188 0.072179565 95.305970 20.147882 6752.0404 2.0497534e+08 0.033497645 0.074087696 95.364084 19.990971 6754.7216 1.9689828e+08 0.031657247 0.075053073 95.423677 19.830066 6757.4027 1.8982618e+08 0.028834793 0.075517838 95.476281 19.688035 6760.0839 1.8195614e+08 0.029621408 0.076221268 95.529139 19.543591 6762.7651 1.7734000e+08 0.034169576 0.076816740 95.583249 19.387279 6765.4462 1.6613310e+08 0.036864437 0.079612652 95.636597 19.238188 6768.1274 1.5786072e+08 0.033819932 0.081314361 95.689200 19.096159 6770.8085 1.5060545e+08 0.028032214 0.088840757 95.746347 18.941859 6773.4897 1.4401682e+08 0.022846168 0.095343746 95.806466 18.779535 6776.1709 1.3848857e+08 0.017659042 0.10184673 95.860929 18.622870 6778.8520 1.3239768e+08 0.012459879 0.10834972 95.914621 18.470527 6781.5332 1.3031861e+08 0.0073143083 0.11485271 95.967224 18.328496 6784.2143 1.2632865e+08 0.0021515443 0.12135570 96.020394 18.181082 6786.8955 1.2145018e+08 -0.0030196733 0.12785869 96.074499 18.024770 6789.5766 1.1556939e+08 -0.0081975679 0.13436168 96.128608 17.864168 6792.2578 1.0940452e+08 -0.013366210 0.14086467 96.182643 17.703128 6794.9390 1.0554801e+08 -0.018425960 0.14736765 96.235246 17.566359 6797.6201 1.0166890e+08 -0.023468739 0.15387064 96.288074 17.425776 6800.3013 96745766. -0.028568068 0.16037363 96.342184 17.263452 6802.9824 93472028. -0.033590651 0.16687662 96.396292 17.104049 6805.6636 87723378. -0.038780479 0.17337961 96.450399 16.947736 6808.3448 83874003. -0.043877341 0.17988260 96.509451 16.791424 6811.0259 81522474. -0.048879902 0.18638558 96.568613 16.634155 6813.7071 78697000. -0.053947583 0.19288857 96.622723 16.471831 6816.3882 77148297. -0.058929951 0.19939156 96.673477 16.322179 6819.0694 72424118. -0.064303274 0.20589455 96.720818 16.185409 6821.7506 68857437. -0.069678752 0.21239754 96.772186 16.037014 6824.4317 64702390. -0.075312722 0.21890053 96.826297 15.880703 6827.1129 63968412. -0.080644302 0.22540352 96.880403 15.718790 6829.7940 62227740. -0.086419654 0.23190650 96.934510 15.558078 6832.4752 62337662. -0.092284173 0.23840949 96.988621 15.401766 6835.1563 60708748. -0.099272911 0.24491248 97.042728 15.245454 6837.8375 58360440. -0.10809387 0.25141547 97.096834 15.089143 6840.5187 54683602. -0.12231310 0.25791846 97.159436 14.908298 6843.1998 51950255. -0.17971113 0.26442145 97.217912 14.739370 6845.8810 50542745. -0.14190816 0.27092444 97.272017 14.583059 6848.5621 48166786. -0.048504577 0.27742742 97.321001 14.421622