# # 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 = 57.807171 km # Date (UTC) = 2014-12-11T09:51:34.657 # Date (julian) = 2457002.91081779 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6500.7018 4.5523340e+10 0.046193687 0.032494826 108.29284 27.380804 6503.1901 4.2564354e+10 0.056042992 0.033245169 108.34925 27.259298 6505.6784 3.9344514e+10 0.066158269 0.033995512 108.40567 27.138226 6508.1667 3.6319161e+10 0.076633986 0.034745855 108.46209 27.021044 6510.6550 3.3489159e+10 0.087515740 0.035496198 108.51851 26.903861 6513.1433 3.0863565e+10 0.098842580 0.036246541 108.57493 26.786692 6515.6316 2.8473376e+10 0.11068443 0.036996885 108.63134 26.669527 6518.1199 2.6297131e+10 0.12308868 0.037747228 108.68562 26.550226 6520.6082 2.4374347e+10 0.13611985 0.038497571 108.73769 26.428719 6523.0966 2.2434710e+10 0.14651016 0.039203043 108.79190 26.305280 6525.5849 2.0419673e+10 0.15261352 0.039715466 108.85537 26.173465 6528.0732 1.8478470e+10 0.15823176 0.041500531 108.91786 26.043690 6530.5615 1.6724240e+10 0.16256118 0.044614760 108.97427 25.926524 6533.0498 1.5231517e+10 0.16679600 0.047540747 109.03068 25.809358 6535.5381 1.3948891e+10 0.16844642 0.047990871 109.08348 25.688555 6538.0264 1.2783772e+10 0.17059519 0.049169541 109.13556 25.567033 6540.5147 1.1772430e+10 0.17165565 0.051097269 109.18764 25.447822 6543.0030 1.0885055e+10 0.17110400 0.051382688 109.23971 25.330655 6545.4913 1.0033110e+10 0.16987088 0.052459969 109.29276 25.213488 6547.9796 9.2565572e+09 0.16828571 0.053659906 109.34918 25.096322 6550.4680 8.5599197e+09 0.16623609 0.055102532 109.40560 24.979155 6552.9563 7.9158278e+09 0.16421551 0.055346075 109.45801 24.861975 6555.4446 7.3255659e+09 0.16178169 0.054479816 109.51009 24.744793 6557.9329 6.7803718e+09 0.15945794 0.053281373 109.56217 24.627621 6560.4212 6.2798491e+09 0.15663883 0.051894549 109.61424 24.510454 6562.9095 5.8380919e+09 0.15392815 0.050014479 109.66632 24.393288 6565.3978 5.4367780e+09 0.15146965 0.047866677 109.71839 24.276121 6567.8861 5.0829231e+09 0.14967335 0.045867950 109.77046 24.158954 6570.3744 4.7655779e+09 0.14816312 0.044762407 109.82254 24.041787 6572.8627 4.4819244e+09 0.14639976 0.043736087 109.87461 23.924621 6575.3510 4.2249349e+09 0.14418762 0.042022495 109.92669 23.807444 6577.8394 3.9850941e+09 0.14166551 0.038901944 109.97877 23.690262 6580.3277 3.7492883e+09 0.13901606 0.036217941 110.03346 23.567221 6582.8160 3.5043078e+09 0.13683371 0.035071744 110.09204 23.435407 6585.3043 3.2658009e+09 0.13460921 0.033727503 110.14680 23.308749 6587.7926 3.0540700e+09 0.13252743 0.033333978 110.19454 23.191582 6590.2809 2.8756696e+09 0.12983010 0.030539541 110.24248 23.074416 6592.7692 2.7180104e+09 0.12676483 0.027326384 110.29455 22.957249 6595.2575 2.5686366e+09 0.12343951 0.025650277 110.34663 22.840082 6597.7458 2.4294005e+09 0.12011388 0.025487371 110.39548 22.722916 6600.2341 2.3024404e+09 0.11848568 0.025471228 110.44321 22.605750 6602.7225 2.1871222e+09 0.11715443 0.026900122 110.49286 22.488577 6605.2108 2.0839989e+09 0.11615409 0.026841855 110.54493 22.371395 6607.6991 1.9809819e+09 0.11454614 0.024326595 110.59643 22.254215 6610.1874 1.8885991e+09 0.11154478 0.024182015 110.64416 22.137048 6612.6757 1.8021085e+09 0.10979463 0.023815903 110.69190 22.019881 6615.1640 1.7203658e+09 0.10875916 0.023256577 110.74324 21.902715 6617.6523 1.6458863e+09 0.10776203 0.023655520 110.79531 21.785548 6620.1406 1.5628220e+09 0.10728974 0.024812511 110.84824 21.660678 6622.6289 1.4770180e+09 0.10605027 0.024590594 110.90194 21.528863 6625.1172 1.3944562e+09 0.10466289 0.025537501 110.95280 21.406110 6627.6055 1.3209980e+09 0.10275282 0.025550723 111.00054 21.293268 6630.0939 1.2603017e+09 0.10137717 0.025928533 111.04828 21.179677 6632.5822 1.2047929e+09 0.099503108 0.026102151 111.09602 21.062511 6635.0705 1.1485335e+09 0.097868253 0.026410356 111.14375 20.945344 6637.5588 1.0949386e+09 0.096212534 0.025887738 111.19149 20.828177 6640.0471 1.0471463e+09 0.095765285 0.025264890 111.23922 20.711010 6642.5354 9.9838945e+08 0.095495546 0.025173606 111.29032 20.588329 6645.0237 9.5040697e+08 0.094189838 0.025462791 111.34403 20.461396 6647.5120 9.0361904e+08 0.092616154 0.026707360 111.39465 20.339506 6650.0003 8.5802390e+08 0.091454548 0.026255312 111.44238 20.222340 6652.4886 8.1686088e+08 0.090505299 0.027384965 111.49012 20.106090 6654.9769 7.8475852e+08 0.088938293 0.027620037 111.53786 19.993248 6657.4653 7.5568773e+08 0.086593490 0.029440794 111.58559 19.880407 6659.9536 7.2447271e+08 0.084965439 0.031635684 111.63875 19.750342 6662.4419 6.8755450e+08 0.083530519 0.032796354 111.69245 19.618528 6664.9302 6.4872283e+08 0.082966780 0.028802584 111.73729 19.503032 6667.4185 6.1852417e+08 0.082624152 0.027257178 111.78069 19.390204 6669.9068 5.9678523e+08 0.081894563 0.027424353 111.82650 19.274968 6672.3951 5.7731801e+08 0.081624311 0.027108613 111.87423 19.157802 6674.8834 5.5480561e+08 0.080241564 0.029700015 111.92346 19.038188 6677.3717 5.3074238e+08 0.078080630 0.031829764 111.97716 18.911255 6679.8600 5.0473008e+08 0.078170353 0.029557073 112.02878 18.786295 6682.3483 4.8094510e+08 0.079082270 0.030690695 112.07218 18.669114 6684.8367 4.6243926e+08 0.079098663 0.032696549 112.11558 18.551933 6687.3250 4.4295839e+08 0.077122707 0.034161662 112.16824 18.425993 6689.8133 4.2589080e+08 0.074533584 0.033283944 112.22194 18.299059 6692.3016 4.0732118e+08 0.073367228 0.032415114 112.26688 18.184114 6694.7899 3.8849144e+08 0.072595538 0.030153946 112.31028 18.071287 6697.2782 3.7286942e+08 0.071931393 0.030126473 112.35367 17.956094 6699.7665 3.5779072e+08 0.070243179 0.030883159 112.39706 17.838927 6702.2548 3.4406040e+08 0.068436718 0.033080208 112.44294 17.719407 6704.7431 3.2823392e+08 0.068752765 0.036542471 112.49665 17.592474 6707.2314 3.1375704e+08 0.068308582 0.040153672 112.54941 17.465542 6709.7198 2.9587912e+08 0.067341131 0.040674746 112.59823 17.338609 6712.2081 2.8648047e+08 0.064888762 0.042216258 112.64626 17.213710 6714.6964 2.7819572e+08 0.062553911 0.047355762 112.68966 17.100868 6717.1847 2.6880463e+08 0.060316210 0.049862845 112.73306 16.988026 6719.6730 2.5780604e+08 0.058511440 0.050730450 112.78102 16.863344 6722.1613 2.4354231e+08 0.058688174 0.050405797 112.82984 16.736412 6724.6496 2.3150640e+08 0.055067045 0.044502022 112.87436 16.617214 6727.1379 2.2317846e+08 0.052472997 0.040776642 112.91776 16.500048 6729.6262 2.1477079e+08 0.051614009 0.040628032 112.96380 16.378121 6732.1145 2.0533128e+08 0.049611217 0.043761295 113.01262 16.251189 6734.6028 1.9478590e+08 0.049089341 0.049317328 113.06144 16.124256 6737.0912 1.8336806e+08 0.050951899 0.054425938 113.11026 15.997323 6739.5795 1.7858614e+08 0.051161560 0.063535705 113.15908 15.870390 6742.0678 1.7048308e+08 0.048656059 0.068775891 113.20790 15.743457 6744.5561 1.6230177e+08 0.043661480 0.078223527 113.25486 15.621351 6747.0444 1.5605204e+08 0.038458810 0.067345879 113.29826 15.508509 6749.5327 1.4399682e+08 0.037057935 0.072132079 113.34187 15.395126 6752.0210 1.3840411e+08 0.032778707 0.074110164 113.39069 15.268194 6754.5093 1.3393754e+08 0.030899795 0.075394422 113.43952 15.141262 6756.9976 1.2857185e+08 0.027376647 0.076733954 113.48834 15.014329 6759.4859 1.2780664e+08 0.028044864 0.075937219 113.53716 14.887396 6761.9742 1.1951604e+08 0.031194399 0.078048717 113.58598 14.765061 6764.4626 1.1572864e+08 0.034117730 0.079505445 113.63480 14.643011 6766.9509 1.1381999e+08 0.034102420 0.081864623 113.67926 14.516599 6769.4392 1.1031531e+08 0.028242070 0.085519454 113.72320 14.389666 6771.9275 1.0698134e+08 0.023287762 0.091554698 113.77126 14.262734 6774.4158 99662733. 0.018211487 0.097589942 113.82008 14.135802 6776.9041 96716191. 0.013242489 0.10362519 113.86501 14.008869 6779.3924 94493076. 0.0083001252 0.10966043 113.90894 13.881936 6781.8807 90405298. 0.0032529205 0.11569567 113.95653 13.755004 6784.3690 87333296. -0.0017651172 0.12173092 114.00535 13.628071 6786.8573 83354695. -0.0068803528 0.12776616 114.05418 13.504544 6789.3456 77657301. -0.012209162 0.13380141 114.10301 13.382475 6791.8340 72622782. -0.017605948 0.13983665 114.14865 13.257235 6794.3223 68498725. -0.023047505 0.14587189 114.19259 13.130303 6796.8106 65512979. -0.028490074 0.15190714 114.23653 13.003371 6799.2989 67707654. -0.033247743 0.15794238 114.28047 12.876438 6801.7872 64323496. -0.039177374 0.16397763 114.33099 12.742532 6804.2755 60593039. -0.045753180 0.17001287 114.38678 12.603042 6806.7638 57113475. -0.053313056 0.17604811 114.43353 12.473135 6809.2521 53962057. -0.062811730 0.18208336 114.47747 12.346203 6811.7404 53883228. -0.076347128 0.18811860 114.52489 12.222760 6814.2287 53842402. -0.13503740 0.19415385 114.57371 12.100710 6816.7171 51765695. -0.094205309 0.20018909 114.62346 11.963319 6819.2054 47607109. 0.0081765032 0.20622433 114.67368 11.818251