# # 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 = 36.961040 km # Date (UTC) = 2017-01-03T08:46:55.069 # Date (julian) = 2457756.86591514 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6509.2461 5.3662499e+10 0.095165750 0.035071344 -12.333137 48.796864 6510.7087 5.0207541e+10 0.10267689 0.035512389 -12.396905 48.733096 6512.1713 4.6628984e+10 0.11020229 0.035953434 -12.460673 48.669328 6513.6339 4.3547992e+10 0.11789091 0.036394480 -12.524441 48.605560 6515.0965 4.0778610e+10 0.12569435 0.036835525 -12.588209 48.541792 6516.5591 3.8126247e+10 0.13356990 0.037276570 -12.651977 48.478024 6518.0217 3.5716816e+10 0.14155748 0.037717616 -12.715745 48.414256 6519.4843 3.3377349e+10 0.14958767 0.038158661 -12.783203 48.346798 6520.9470 3.1139182e+10 0.15765757 0.038599707 -12.854943 48.275058 6522.4096 2.8889987e+10 0.16458874 0.039024498 -12.926683 48.203318 6523.8722 2.6752715e+10 0.16834221 0.039395276 -12.998418 48.131582 6525.3348 2.4948817e+10 0.17254005 0.039744008 -13.059880 48.067626 6526.7974 2.3364138e+10 0.17582296 0.040504045 -13.121105 48.003850 6528.2600 2.2060098e+10 0.17824258 0.041648731 -13.182330 47.940074 6529.7226 2.0745980e+10 0.18093213 0.043386812 -13.244000 47.876001 6531.1852 1.9470051e+10 0.18171102 0.045498241 -13.312870 47.807130 6532.6478 1.8168591e+10 0.18382397 0.047225367 -13.381741 47.738259 6534.1104 1.6847388e+10 0.18362159 0.047975445 -13.450612 47.669388 6535.5730 1.5678927e+10 0.18288879 0.047975722 -13.515095 47.603442 6537.0356 1.4648044e+10 0.18281084 0.048702025 -13.576312 47.539674 6538.4982 1.3768196e+10 0.18151837 0.049399296 -13.637530 47.475906 6539.9608 1.2975345e+10 0.18111977 0.050806706 -13.698747 47.412138 6541.4235 1.2261450e+10 0.17871279 0.051189207 -13.758299 47.348370 6542.8861 1.1620598e+10 0.17717237 0.051338635 -13.816966 47.284602 6544.3487 1.1074015e+10 0.17539018 0.051927193 -13.875632 47.220834 6545.8113 1.0548586e+10 0.17330251 0.052462835 -13.934299 47.157066 6547.2739 9.9908381e+09 0.17227381 0.053391517 -13.998337 47.087459 6548.7365 9.3878798e+09 0.17018314 0.053887587 -14.064338 47.015719 6550.1991 8.7494963e+09 0.16918730 0.055035211 -14.130339 46.943979 6551.6617 8.1837449e+09 0.16742231 0.055468019 -14.194526 46.874210 6553.1243 7.6819501e+09 0.16570990 0.055272578 -14.253201 46.810434 6554.5869 7.2713790e+09 0.16375446 0.054844696 -14.311875 46.746657 6556.0495 6.8907425e+09 0.16121363 0.054005844 -14.370549 46.682880 6557.5121 6.5369625e+09 0.15950419 0.053545101 -14.429221 46.619107 6558.9747 6.2274860e+09 0.15659782 0.052408707 -14.487888 46.555339 6560.4373 5.9379870e+09 0.15415207 0.051879985 -14.546554 46.491571 6561.9000 5.6945332e+09 0.15133666 0.050929203 -14.605221 46.427803 6563.3626 5.4315019e+09 0.14828449 0.049508967 -14.665706 46.360789 6564.8252 5.1580585e+09 0.14575701 0.048397631 -14.728837 46.289048 6566.2878 4.8614179e+09 0.14278435 0.047020090 -14.791968 46.217308 6567.7504 4.5711559e+09 0.14076805 0.045982719 -14.855100 46.145568 6569.2130 4.3230461e+09 0.13842754 0.044866287 -14.911760 46.081181 6570.6756 4.1099336e+09 0.13681625 0.044637654 -14.967876 46.017413 6572.1382 3.9434811e+09 0.13524181 0.044151009 -15.023992 45.953645 6573.6008 3.7880181e+09 0.13307283 0.043175344 -15.080122 45.889860 6575.0634 3.6241824e+09 0.13144394 0.042311078 -15.143253 45.818121 6576.5260 3.4343438e+09 0.12929324 0.040765925 -15.206384 45.746381 6577.9886 3.2342533e+09 0.12740601 0.038667467 -15.269516 45.674641 6579.4512 3.0440343e+09 0.12526275 0.036822430 -15.329023 45.607019 6580.9138 2.8804592e+09 0.12321282 0.035676225 -15.385147 45.543242 6582.3765 2.7489872e+09 0.12161513 0.035191351 -15.441270 45.479466 6583.8391 2.6242919e+09 0.11956013 0.034596970 -15.497393 45.415689 6585.3017 2.5150913e+09 0.11786160 0.033729594 -15.551989 45.351918 6586.7643 2.4144655e+09 0.11592008 0.033161416 -15.605554 45.288150 6588.2269 2.3143751e+09 0.11423413 0.033304162 -15.659119 45.224382 6589.6895 2.2294828e+09 0.11215074 0.031678086 -15.712684 45.160614 6591.1521 2.1355181e+09 0.10966802 0.029030283 -15.770781 45.091451 6592.6147 2.0397860e+09 0.10772261 0.027476458 -15.831042 45.019710 6594.0773 1.9320266e+09 0.10550552 0.026130082 -15.891304 44.947970 6595.5399 1.8224677e+09 0.10326637 0.025679563 -15.950280 44.877760 6597.0025 1.7281798e+09 0.10114449 0.025721929 -16.003846 44.813992 6598.4651 1.6460718e+09 0.099255937 0.025185093 -16.057411 44.750224 6599.9277 1.5897635e+09 0.098372404 0.024985529 -16.110976 44.686456 6601.3904 1.5337953e+09 0.097615080 0.027229523 -16.165580 44.620524 6602.8530 1.4779169e+09 0.096688719 0.026788753 -16.222973 44.548783 6604.3156 1.4078539e+09 0.095812059 0.026258649 -16.280365 44.477043 6605.7782 1.3287808e+09 0.095723923 0.027317868 -16.337757 44.405303 6607.2408 1.2550888e+09 0.094670947 0.025231545 -16.392144 44.339828 6608.7034 1.1995495e+09 0.092591427 0.023713774 -16.445716 44.276051 6610.1660 1.1413533e+09 0.090803748 0.024161583 -16.499288 44.212275 6611.6286 1.0911704e+09 0.089076028 0.024557593 -16.552860 44.148499 6613.0912 1.0422189e+09 0.088558742 0.023607055 -16.604216 44.084729 6614.5538 9.9721788e+08 0.087727333 0.023558934 -16.655230 44.020961 6616.0164 9.6814808e+08 0.086439825 0.023284877 -16.706245 43.957193 6617.4790 9.2947724e+08 0.085994674 0.023598071 -16.757260 43.893425 6618.9416 8.9062217e+08 0.085414338 0.024481845 -16.814309 43.822113 6620.4042 8.4862284e+08 0.085029485 0.024897465 -16.871701 43.750373 6621.8669 8.0228440e+08 0.084233890 0.024802124 -16.929093 43.678633 6623.3295 7.5707982e+08 0.083122077 0.024613886 -16.983541 43.610572 6624.7921 7.1876532e+08 0.082244065 0.025286299 -17.034556 43.546803 6626.2547 6.9162626e+08 0.081097586 0.026266424 -17.085571 43.483035 6627.7173 6.7091154e+08 0.079797560 0.025593885 -17.136585 43.419267 6629.1799 6.4465827e+08 0.078877527 0.026076580 -17.189498 43.351186 6630.6425 6.2038138e+08 0.077676105 0.025929885 -17.244021 43.279446 6632.1051 5.8907615e+08 0.076604316 0.026044948 -17.298543 43.207706 6633.5677 5.6245079e+08 0.075681660 0.026251370 -17.352726 43.136413 6635.0303 5.3525525e+08 0.074950783 0.026404334 -17.401196 43.072637 6636.4929 5.0652919e+08 0.074054722 0.026358329 -17.449666 43.008861 6637.9555 4.9328877e+08 0.073604330 0.025693421 -17.498136 42.945084 6639.4181 4.7815588e+08 0.073310710 0.025478622 -17.547823 42.880222 6640.8807 4.5959614e+08 0.073946401 0.025162891 -17.605215 42.808482 6642.3434 4.3499540e+08 0.074039569 0.025165747 -17.662607 42.736741 6643.8060 4.0650432e+08 0.073557183 0.025314309 -17.719999 42.665001 6645.2686 3.8559589e+08 0.073229272 0.025577499 -17.769912 42.598454 6646.7312 3.7299069e+08 0.072526707 0.026298628 -17.815825 42.534686 6648.1938 3.6123679e+08 0.071977124 0.027094004 -17.861738 42.470918 6649.6564 3.4770935e+08 0.071535385 0.026728884 -17.907651 42.407150 6651.1190 3.3301074e+08 0.071326838 0.026575361 -17.959858 42.337554 6652.5816 3.1735137e+08 0.071239786 0.027410544 -18.014381 42.265814 6654.0442 3.0286759e+08 0.070790828 0.028017390 -18.068904 42.194074 6655.5068 2.9201404e+08 0.069785707 0.027819636 -18.121934 42.124297 6656.9694 2.8026239e+08 0.068638827 0.028874279 -18.170398 42.060529 6658.4320 2.7336762e+08 0.067753793 0.030827303 -18.218861 41.996761 6659.8946 2.6860032e+08 0.066915246 0.031647975 -18.267324 41.932993 6661.3573 2.5968804e+08 0.065931132 0.032716905 -18.316827 41.866628 6662.8199 2.4764783e+08 0.065287309 0.032584283 -18.368480 41.794887 6664.2825 2.3541629e+08 0.064544627 0.031172562 -18.420133 41.723147 6665.7451 2.2599382e+08 0.064776105 0.027326304 -18.471787 41.651406 6667.2077 2.1851103e+08 0.064554572 0.027179742 -18.523446 41.579657 6668.6703 2.0725268e+08 0.063931745 0.028063930 -18.575107 41.507906 6670.1329 1.9498227e+08 0.064182012 0.027267065 -18.626768 41.436155 6671.5955 1.8618450e+08 0.064230249 0.026873835 -18.676378 41.367252 6673.0581 1.8525276e+08 0.064102135 0.027546123 -18.722291 41.303484 6674.5207 1.8690037e+08 0.063216382 0.029394049 -18.768204 41.239716 6675.9833 1.7820044e+08 0.061748203 0.031681782 -18.814117 41.175948 6677.4459 1.6819817e+08 0.061091023 0.031724281 -18.862534 41.108702 6678.9085 1.5629365e+08 0.060809324 0.030328945 -18.914187 41.036962 6680.3711 1.4681557e+08 0.061776897 0.029521562 -18.965840 40.965222 6681.8338 1.4299390e+08 0.062401956 0.030297000 -19.017493 40.893482 6683.2964 1.3707745e+08 0.062879176 0.031622899 -19.061258 40.829327 6684.7590 1.2787674e+08 0.062977495 0.032692606 -19.104620 40.765558 6686.2216 1.2495103e+08 0.062407291 0.033889999 -19.147983 40.701790 6687.6842 1.1984795e+08 0.060903663 0.033961325 -19.191602 40.637775 6689.1468 1.1981632e+08 0.059039561 0.033883891 -19.243255 40.566035 6690.6094 1.1747892e+08 0.058615999 0.033046026 -19.294908 40.494294 6692.0720 1.1339693e+08 0.058042058 0.032681716 -19.346561 40.422554 6693.5346 1.1043169e+08 0.057585889 0.031420684 -19.396647 40.350814 6694.9972 97233839. 0.057634121 0.029863373 -19.445430 40.279074 6696.4598 88270005. 0.057535870 0.029866834 -19.494213 40.207334 6697.9224 85596759. 0.057143762 0.030208001 -19.542997 40.135593 6699.3850 85906428. 0.056199307 0.031235151 -19.591787 40.063842 6700.8476 88652465. 0.055068215 0.031296442 -19.640577 39.992091 6702.3103 84770314. 0.054635857 0.033124470 -19.689367 39.920340 6703.7729 78464426. 0.055131306 0.035609181 -19.735025 39.853197 6705.2355 78322251. 0.055439687 0.037087222 -19.778387 39.789429 6706.6981 75360521. 0.055383381 0.039661351 -19.821749 39.725661 6708.1607 74558254. 0.055352457 0.040218556 -19.865112 39.661893 6709.6233 72599542. 0.054773903 0.040736100 -19.910150 39.592890 6711.0859 71869990. 0.053654594 0.040789961 -19.956064 39.521149 6712.5485 70884163. 0.052442219 0.042848350 -20.001979 39.449408 6714.0111 66192626. 0.051084037 0.047304244 -20.048386 39.377668 6715.4737 68401304. 0.050117353 0.047863096 -20.097169 39.305928 6716.9363 63038973. 0.048913425 0.049780484 -20.145952 39.234188 6718.3989 61957522. 0.047249610 0.050433724 -20.194735 39.162448 6719.8615 56953816. 0.045416289 0.050551312 -20.241546 39.090707 6721.3241 49662014. 0.046801877 0.050401567 -20.287460 39.018967 6722.7868 48429131. 0.048743067 0.049632568 -20.333375 38.947227