# # 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 = 43.703453 km # Date (UTC) = 2010-12-03T09:40:28.561 # Date (julian) = 2455533.90310835 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6493.7128 2.0701959e+11 0.025872728 0.030387330 105.69223 35.986858 6495.8241 1.8414605e+11 0.032891939 0.031023973 105.75851 35.872611 6497.9353 1.6114124e+11 0.039934617 0.031660616 105.82478 35.756628 6500.0466 1.3804634e+11 0.046995305 0.032297259 105.88921 35.643411 6502.1578 1.1908979e+11 0.054201387 0.032933902 105.94444 35.543999 6504.2691 1.0403715e+11 0.061762497 0.033570545 105.99967 35.444586 6506.3804 9.1755129e+10 0.069831488 0.034207188 106.05988 35.337702 6508.4916 8.0258726e+10 0.078370784 0.034843831 106.12616 35.221720 6510.6029 7.0408075e+10 0.087583679 0.035480474 106.19229 35.105890 6512.7141 6.1620085e+10 0.097483351 0.036117117 106.25443 34.994032 6514.8254 5.4281010e+10 0.10826720 0.036753759 106.31657 34.882175 6516.9366 4.7993258e+10 0.11990711 0.037390402 106.37870 34.767748 6519.0479 4.2696495e+10 0.13245816 0.038027045 106.44084 34.651766 6521.1591 3.8114811e+10 0.14580501 0.038663688 106.50297 34.536648 6523.2704 3.4171507e+10 0.15624400 0.039246126 106.56511 34.424807 6525.3816 3.0724444e+10 0.16463039 0.039738660 106.62724 34.312967 6527.4929 2.7598579e+10 0.17198885 0.041074313 106.68937 34.197834 6529.6041 2.4842863e+10 0.17765130 0.043198129 106.75151 34.081850 6531.7154 2.2447589e+10 0.18149887 0.046269946 106.81102 33.972172 6533.8266 2.0514522e+10 0.18273496 0.047870888 106.86625 33.872761 6535.9379 1.8927549e+10 0.18120181 0.047817439 106.92148 33.773350 6538.0492 1.7505709e+10 0.18097575 0.049180617 106.97854 33.665679 6540.1604 1.6126039e+10 0.17973110 0.050929884 107.03653 33.553838 6542.2717 1.4799410e+10 0.17686951 0.051105376 107.09556 33.440960 6544.3829 1.3605278e+10 0.17451411 0.051954977 107.15769 33.324976 6546.4942 1.2546534e+10 0.17214245 0.052871149 107.21983 33.208993 6548.6054 1.1590228e+10 0.17000819 0.053848446 107.27850 33.096460 6550.7167 1.0731241e+10 0.16801727 0.055164809 107.33650 32.984602 6552.8279 9.9561017e+09 0.16621223 0.055378377 107.39450 32.872753 6554.9392 9.2455188e+09 0.16396950 0.054852089 107.45249 32.760913 6557.0504 8.5693347e+09 0.16126991 0.053834492 107.51048 32.649031 6559.1617 7.9127590e+09 0.15803946 0.052368931 107.56847 32.533056 6561.2729 7.3052673e+09 0.15481736 0.051238180 107.62647 32.417072 6563.3842 6.7805302e+09 0.15171291 0.049483938 107.68063 32.310934 6565.4955 6.3585045e+09 0.14860044 0.047755805 107.73217 32.211522 6567.6067 6.0114726e+09 0.14575007 0.046104202 107.78372 32.112109 6569.7180 5.6801206e+09 0.14290938 0.044899152 107.84093 32.001783 6571.8292 5.3396104e+09 0.13998495 0.044276801 107.89892 31.889944 6573.9405 5.0006784e+09 0.13627452 0.042902780 107.95691 31.778103 6576.0517 4.6768534e+09 0.13267006 0.041311863 108.01490 31.666262 6578.1630 4.3649888e+09 0.12904740 0.038392261 108.07269 31.554215 6580.2742 4.0693096e+09 0.12570501 0.036267328 108.12653 31.438233 6582.3855 3.7923920e+09 0.12310684 0.035188895 108.18038 31.322251 6584.4967 3.5364514e+09 0.12099603 0.034244921 108.23686 31.208901 6586.6080 3.2931733e+09 0.11912794 0.033163437 108.29485 31.097060 6588.7192 3.0745552e+09 0.11744934 0.033139738 108.35060 30.987970 6590.8305 2.8911220e+09 0.11511214 0.029517217 108.39848 30.888545 6592.9417 2.7486033e+09 0.11293033 0.027158801 108.44635 30.789120 6595.0530 2.6207736e+09 0.11041842 0.025629068 108.49725 30.683413 6597.1643 2.4834129e+09 0.10777243 0.025670895 108.55109 30.571572 6599.2755 2.3427307e+09 0.10603843 0.024946301 108.60494 30.459732 6601.3868 2.2003332e+09 0.10579522 0.027227833 108.65879 30.347891 6603.4980 2.0653113e+09 0.10443327 0.026368450 108.71264 30.236051 6605.6093 1.9366319e+09 0.10377061 0.027176172 108.76649 30.124211 6607.7205 1.8155731e+09 0.10178277 0.024284234 108.82034 30.012370 6609.8318 1.7042542e+09 0.098714410 0.023953008 108.87419 29.900530 6611.9430 1.5982427e+09 0.096140137 0.024357082 108.92804 29.788689 6614.0543 1.4991362e+09 0.095004724 0.023903093 108.98189 29.676848 6616.1655 1.4129126e+09 0.093293925 0.023308280 109.03065 29.575563 6618.2768 1.3376525e+09 0.092432511 0.023979806 109.07852 29.476151 6620.3880 1.2767622e+09 0.091367550 0.024892244 109.12719 29.375079 6622.4993 1.2176220e+09 0.089686553 0.024625096 109.18104 29.263222 6624.6106 1.1579367e+09 0.087784373 0.025189134 109.23490 29.151365 6626.7218 1.0969762e+09 0.085906407 0.025671257 109.28577 29.039520 6628.8331 1.0356694e+09 0.084790017 0.026041325 109.33548 28.927680 6630.9443 9.7652897e+08 0.083458029 0.025930629 109.38645 28.815839 6633.0556 9.2344913e+08 0.082570278 0.026161954 109.44030 28.703999 6635.1668 8.7491928e+08 0.081470484 0.026424805 109.49415 28.592158 6637.2781 8.2740904e+08 0.080411936 0.026025220 109.54430 28.480317 6639.3893 7.8290081e+08 0.080000686 0.025488921 109.59401 28.368477 6641.5006 7.3792518e+08 0.080755812 0.025150000 109.64570 28.256636 6643.6118 6.9937253e+08 0.080240450 0.025284998 109.69954 28.144796 6645.7231 6.6292312e+08 0.079492258 0.025790423 109.75313 28.032956 6647.8343 6.2334216e+08 0.078770956 0.026877064 109.80284 27.921115 6649.9456 5.8525946e+08 0.078263665 0.026330234 109.85255 27.809274 6652.0568 5.5165143e+08 0.077936201 0.027266162 109.89867 27.705498 6654.1681 5.2663433e+08 0.077352003 0.027964613 109.94285 27.606086 6656.2794 5.0991247e+08 0.075630537 0.028268605 109.98703 27.506673 6658.3906 4.9131045e+08 0.074249987 0.030753829 110.03637 27.395667 6660.5019 4.7335936e+08 0.072933830 0.032082165 110.08608 27.283827 6662.6131 4.5228832e+08 0.071716422 0.032700278 110.13579 27.174126 6664.7244 4.2827821e+08 0.070984054 0.029555656 110.18550 27.066411 6666.8356 4.0818568e+08 0.070764599 0.027071426 110.23522 26.958263 6668.9469 3.8570350e+08 0.069614852 0.028308691 110.28492 26.846423 6671.0581 3.6750503e+08 0.069764163 0.026866177 110.33463 26.734584 6673.1694 3.4811140e+08 0.069468615 0.027712541 110.38434 26.622743 6675.2806 3.2672800e+08 0.068003892 0.030335877 110.43404 26.510903 6677.3919 3.0912630e+08 0.066491187 0.031801106 110.48261 26.399062 6679.5031 2.8998045e+08 0.066543443 0.029851997 110.52817 26.287222 6681.6144 2.7606882e+08 0.067617109 0.030128714 110.57374 26.175381 6683.7256 2.6460126e+08 0.068077474 0.032252029 110.62287 26.067113 6685.8369 2.4942925e+08 0.067791521 0.033588814 110.67258 25.959415 6687.9482 2.3740469e+08 0.065594471 0.033814104 110.72228 25.849859 6690.0594 2.2473396e+08 0.063731631 0.033109055 110.77199 25.738018 6692.1707 2.1650374e+08 0.062675966 0.032567147 110.82156 25.626177 6694.2819 2.0790504e+08 0.061784002 0.030865904 110.86712 25.514337 6696.3932 1.9613651e+08 0.061515343 0.029839140 110.91269 25.402497 6698.5044 1.8554707e+08 0.060401959 0.030910198 110.95825 25.293225 6700.6157 1.7663359e+08 0.058545995 0.031124384 111.00382 25.185527 6702.7269 1.7128455e+08 0.057583940 0.033457188 111.05023 25.076976 6704.8382 1.6285235e+08 0.057572815 0.036589147 111.09994 24.965136 6706.9494 1.5521585e+08 0.056961092 0.040098828 111.14965 24.853295 6709.0607 1.4724778e+08 0.056062393 0.041093940 111.19608 24.744721 6711.1719 1.3939452e+08 0.053988706 0.040887860 111.24165 24.637006 6713.2832 1.3255945e+08 0.051612398 0.044710896 111.28722 24.527732 6715.3945 1.2596014e+08 0.049317229 0.047782023 111.33278 24.415891 6717.5057 1.2118297e+08 0.046878067 0.049842988 111.37835 24.304051 6719.6170 1.1744463e+08 0.044863472 0.050783682 111.43019 24.181372 6721.7282 1.1259407e+08 0.044685377 0.050523313 111.48226 24.058287 6723.8395 1.0538725e+08 0.042395004 0.049837129 111.52879 23.944776 6725.9507 98707554. 0.037974592 0.040982150 111.57436 23.832935 6728.0620 93533857. 0.036757469 0.039715937 111.61992 23.722906 6730.1732 89486354. 0.034924679 0.040616418 111.66549 23.615208 6732.2845 88472832. 0.033141221 0.043792581 111.71105 23.507414 6734.3957 88781356. 0.032411431 0.049329789 111.75662 23.395573 6736.5070 87874116. 0.033859069 0.052271705 111.80218 23.283731 6738.6182 86887928. 0.034535970 0.060724796 111.84775 23.174413 6740.7295 80494432. 0.032819358 0.065296579 111.89331 23.066715 6742.8407 74062584. 0.028482732 0.070659394 111.93922 22.956019 6744.9520 71539960. 0.024257512 0.078529762 111.98656 22.832932 6747.0633 67258561. 0.018300192 0.067339385 112.03376 22.710774 6749.1745 65834176. 0.016936520 0.072230152 112.07932 22.598934 6751.2858 60134683. 0.011072544 0.073832493 112.12489 22.487094 6753.3970 55657390. 0.0049632503 0.074262107 112.17045 22.378022 6755.5083 55913758. -0.0024943762 0.074382501 112.21602 22.270323 6757.6195 53238148. -0.036410881 0.074859968 112.26203 22.158713 6759.7308 52780985. -0.010608724 0.075996303 112.30937 22.035626 6763.9533 47994919. 0.059799205 0.079341011 112.40203 21.802295