# # 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 = 60.669436 km # Date (UTC) = 2011-12-01T09:59:06.987 # Date (julian) = 2455896.91605309 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6503.8619 1.2673540e+11 0.063580119 0.033447746 103.05449 33.101030 6506.3888 1.0594765e+11 0.073927604 0.034209726 103.12389 32.962214 6508.9157 8.8761918e+10 0.084410598 0.034971705 103.19330 32.826491 6511.4426 7.4988012e+10 0.095110778 0.035733685 103.26271 32.692632 6513.9695 6.3942126e+10 0.10607619 0.036495664 103.33212 32.555765 6516.4964 5.5034402e+10 0.11735465 0.037257644 103.40153 32.416949 6519.0233 4.8270362e+10 0.12916821 0.038019623 103.46639 32.287231 6521.5502 4.2995587e+10 0.14156647 0.038781603 103.52808 32.163841 6524.0771 3.8661647e+10 0.14852922 0.039454335 103.59225 32.035506 6526.6040 3.4871677e+10 0.15400844 0.040301264 103.66166 31.896688 6529.1309 3.1355684e+10 0.15804903 0.042444225 103.73106 31.759376 6531.6578 2.8345821e+10 0.16210237 0.046186047 103.80047 31.625518 6534.1847 2.5738515e+10 0.16443927 0.047996211 103.86846 31.490234 6536.7116 2.3492776e+10 0.16576759 0.048427143 103.93292 31.351396 6539.2384 2.1434921e+10 0.16705872 0.049932264 103.99872 31.212564 6541.7653 1.9493881e+10 0.16741265 0.051078334 104.06813 31.073747 6544.2922 1.7715895e+10 0.16719751 0.051881423 104.13628 30.936183 6546.8191 1.6106635e+10 0.16684283 0.053138549 104.20073 30.802326 6549.3460 1.4791657e+10 0.16553545 0.054318925 104.26350 30.670933 6551.8729 1.3735587e+10 0.16420203 0.055542167 104.32078 30.547543 6554.3998 1.2835590e+10 0.16174094 0.054840771 104.37807 30.424152 6556.9267 1.1963583e+10 0.15948527 0.053876878 104.44228 30.285854 6559.4536 1.1097839e+10 0.15667469 0.052335979 104.50673 30.147038 6561.9805 1.0269020e+10 0.15401595 0.050889495 104.57118 30.012928 6564.5074 9.5572445e+09 0.15123188 0.048541629 104.63563 29.879070 6567.0343 8.9291797e+09 0.14935049 0.046588159 104.70008 29.740589 6569.5612 8.3398626e+09 0.14772257 0.044888952 104.76453 29.601773 6572.0881 7.7943061e+09 0.14635714 0.044179687 104.82899 29.467475 6574.6150 7.2658263e+09 0.14432151 0.042559610 104.89345 29.333596 6577.1419 6.7491090e+09 0.14227692 0.039997442 104.95791 29.195282 6579.6688 6.2766283e+09 0.13982650 0.036702815 105.02235 29.056466 6582.1957 5.8761537e+09 0.13772378 0.035240534 105.07661 28.935130 6584.7226 5.5488820e+09 0.13560750 0.034121872 105.12949 28.816146 6587.2495 5.2575305e+09 0.13344496 0.033213653 105.18946 28.685021 6589.7764 4.9634019e+09 0.13117116 0.031505636 105.25390 28.546204 6592.3033 4.6633732e+09 0.12828166 0.027778914 105.31540 28.410338 6594.8302 4.3802831e+09 0.12537968 0.025716775 105.37490 28.276479 6597.3571 4.1186786e+09 0.12215163 0.025610036 105.43726 28.142621 6599.8840 3.8711929e+09 0.12044037 0.024982899 105.50171 28.008763 6602.4109 3.6350659e+09 0.11912807 0.027165979 105.56338 27.872123 6604.9378 3.4158716e+09 0.11746516 0.026628116 105.62287 27.733306 6607.4647 3.2280616e+09 0.11537576 0.024789375 105.67877 27.605269 6609.9916 3.0766709e+09 0.11191596 0.024000485 105.73166 27.486270 6612.5185 2.9445270e+09 0.10976851 0.023933346 105.78636 27.363184 6615.0454 2.8146349e+09 0.10885855 0.023252929 105.84585 27.229324 6617.5723 2.6771731e+09 0.10786327 0.023628994 105.90535 27.094187 6620.0992 2.5284117e+09 0.10752510 0.024799164 105.96484 26.955371 6622.6261 2.3858762e+09 0.10631740 0.024591346 106.02434 26.817750 6625.1530 2.2533452e+09 0.10495572 0.025580174 106.08383 26.683890 6627.6799 2.1350704e+09 0.10309401 0.025579443 106.14221 26.550031 6630.2068 2.0285503e+09 0.10171404 0.025928811 106.19674 26.416173 6632.7337 1.9262195e+09 0.10000847 0.026120321 106.25230 26.282314 6635.2606 1.8168991e+09 0.098432898 0.026438867 106.31180 26.148456 6637.7875 1.7144024e+09 0.097038037 0.025775724 106.37004 26.016585 6640.3144 1.6324546e+09 0.096816487 0.025232186 106.42292 25.893194 6642.8413 1.5656391e+09 0.096397328 0.025186123 106.47580 25.769802 6645.3682 1.5034153e+09 0.094917362 0.025624164 106.53021 25.636757 6647.8951 1.4350241e+09 0.093415733 0.026909044 106.58475 25.502878 6650.4220 1.3575890e+09 0.092305135 0.026351840 106.64377 25.369017 6652.9489 1.2912865e+09 0.091491145 0.027511596 106.70326 25.235159 6655.4758 1.2295783e+09 0.089504513 0.027806808 106.75836 25.101301 6658.0027 1.1706998e+09 0.087260545 0.030065824 106.81289 24.967443 6660.5296 1.1141350e+09 0.085184732 0.032107355 106.86743 24.833584 6663.0565 1.0580637e+09 0.083547562 0.032467563 106.92196 24.699726 6665.5834 1.0086166e+09 0.082946115 0.027591257 106.97650 24.565866 6668.1103 9.6259178e+08 0.082292309 0.027568355 107.03104 24.432007 6670.6372 9.2055495e+08 0.081897341 0.027033443 107.08557 24.298148 6673.1641 8.7887828e+08 0.081552886 0.027704590 107.14011 24.164289 6675.6910 8.3981827e+08 0.079409187 0.031121807 107.19464 24.030431 6678.2179 8.0133912e+08 0.078065323 0.030790898 107.24918 23.896573 6680.7448 7.6453123e+08 0.078652397 0.029602242 107.30371 23.762715 6683.2717 7.3190729e+08 0.079300007 0.031586701 107.35825 23.628856 6685.7986 6.9709489e+08 0.078834092 0.033548312 107.41278 23.494997 6688.3255 6.6381341e+08 0.075963420 0.033860317 107.46732 23.361137 6690.8524 6.3392597e+08 0.074152487 0.033018183 107.52186 23.227263 6693.3793 6.0530723e+08 0.073039493 0.031473981 107.57640 23.093384 6695.9062 5.8012450e+08 0.072511338 0.029693024 107.63093 22.963242 6698.4331 5.5500415e+08 0.071324499 0.030812228 107.68547 22.834341 6700.9599 5.3012391e+08 0.069138498 0.031379739 107.74000 22.701804 6703.4868 5.0746301e+08 0.068746540 0.034893482 107.79454 22.567946 6706.0137 4.8381461e+08 0.068676892 0.038470327 107.84552 22.434087 6708.5406 4.6303968e+08 0.068023756 0.040632320 107.89510 22.300229 6711.0675 4.4438964e+08 0.066034571 0.040769077 107.94815 22.166369 6713.5944 4.2679505e+08 0.063422244 0.045836589 108.00268 22.032510 6716.1213 4.1254005e+08 0.061130772 0.048580081 108.05383 21.902034 6718.6482 3.9414495e+08 0.058454348 0.050821995 108.10341 21.773133 6721.1751 3.7969727e+08 0.058497988 0.050356668 108.15629 21.640933 6723.7020 3.6551277e+08 0.056867382 0.049760481 108.21082 21.507075 6726.2289 3.5408962e+08 0.052693122 0.040953432 108.26214 21.373217 6728.7558 3.4222937e+08 0.052071922 0.040699361 108.31172 21.239359 6731.2827 3.2571070e+08 0.050207046 0.042312710 108.36577 21.097003 6733.8096 3.0727226e+08 0.048969258 0.048320017 108.42243 20.949684 6736.3365 2.8989615e+08 0.050873776 0.051627266 108.47295 20.814026 6738.8634 2.7820892e+08 0.052048620 0.062074645 108.52253 20.680168 6741.3903 2.6787612e+08 0.050546387 0.066871917 108.57632 20.546292 6743.9172 2.5742355e+08 0.045467405 0.077234995 108.63087 20.412413 6746.4441 2.4871296e+08 0.042418174 0.073823879 108.68128 20.282679 6748.9710 2.4092049e+08 0.040184587 0.072125464 108.73085 20.153778 6751.4979 2.3315464e+08 0.036112688 0.073922193 108.78621 20.005237 6754.0248 2.2483247e+08 0.033875393 0.076173564 108.84251 19.853473 6756.5517 2.1495659e+08 0.030868450 0.075586551 108.89209 19.724571 6759.0786 2.0629136e+08 0.031310384 0.075838925 108.94167 19.595503 6761.6055 2.0006216e+08 0.033651964 0.078018252 108.99124 19.461644 6764.1324 1.9401448e+08 0.037989627 0.079489629 109.04084 19.327563 6766.6593 1.8660577e+08 0.038914078 0.081205114 109.09184 19.180244 6769.1862 1.7890794e+08 0.033669640 0.084905894 109.14247 19.037561 6771.7131 1.6906771e+08 0.029020888 0.091034733 109.19205 18.908660 6774.2400 1.5964718e+08 0.024391519 0.097163573 109.24163 18.778596 6776.7669 1.5284232e+08 0.019763119 0.10329241 109.29121 18.644738 6779.2938 1.4804287e+08 0.015139929 0.10942125 109.34233 18.507952 6781.8207 1.4257328e+08 0.010532670 0.11555009 109.39899 18.360632 6784.3476 1.3844702e+08 0.0059046073 0.12167893 109.45020 18.221651 6786.8745 1.3410243e+08 0.0012704374 0.12780777 109.49482 18.092750 6789.4014 1.3076283e+08 -0.0033769397 0.13393661 109.54468 17.953357 6791.9283 1.2650124e+08 -0.0080215381 0.14006545 109.60135 17.800373 6794.4552 1.2073585e+08 -0.012669245 0.14619429 109.65801 17.651189 6796.9821 1.1445505e+08 -0.017325609 0.15232313 109.71467 17.503870 6799.5090 1.1078574e+08 -0.021991689 0.15845197 109.76042 17.373235 6802.0359 1.0816976e+08 -0.026655140 0.16458081 109.80504 17.244334 6804.5628 1.0715689e+08 -0.031310806 0.17070965 109.85532 17.099063 6807.0897 1.0275149e+08 -0.035985415 0.17683849 109.90615 16.954026 6809.6166 94484033. -0.040715840 0.18296733 109.95572 16.825125 6812.1435 90571889. -0.045410803 0.18909617 110.00545 16.693651 6814.6704 86473258. -0.050120137 0.19522501 110.05644 16.540667 6817.1973 86606942. -0.054735511 0.20135385 110.10937 16.389621 6819.7242 84835216. -0.059393863 0.20748269 110.16604 16.242302 6822.2511 81046618. -0.064125355 0.21361153 110.21943 16.094984 6824.7780 79369496. -0.068807233 0.21974037 110.27042 15.947665 6827.3049 75513154. -0.073600458 0.22586921 110.32142 15.800346 6829.8318 74234612. -0.078318572 0.23199805 110.37211 15.653898 6832.3587 70731275. -0.083206579 0.23812689 110.41673 15.524997 6834.8856 68632374. -0.088123682 0.24425573 110.46154 15.395539 6837.4125 63789164. -0.093456164 0.25038456 110.51254 15.248221 6839.9394 58592671. -0.099322199 0.25651340 110.56354 15.100903 6842.4663 56660081. -0.10564018 0.26264224 110.61453 14.953584 6844.9932 54342774. -0.11449986 0.26877108 110.66836 14.806266 6847.5201 53883523. -0.14319983 0.27489992 110.72502 14.658947 6850.0470 50642666. -0.12811019 0.28102876 110.77751 14.511628 6852.5739 48545319. -0.084617984 0.28715760 110.82851 14.364309