# # 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 = 39.776584 km # Date (UTC) = 2013-01-25T10:39:44.052 # Date (julian) = 2456317.94425986 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6501.4932 7.3361613e+10 0.049437468 0.032733469 -36.075321 56.760958 6503.2388 6.9839947e+10 0.057557954 0.033259850 -36.240077 56.628686 6504.9844 6.5549382e+10 0.065722948 0.033786230 -36.415403 56.486235 6506.7300 6.1369345e+10 0.074104804 0.034312611 -36.565557 56.361468 6508.4756 5.7427081e+10 0.082750452 0.034838991 -36.707124 56.242734 6510.2212 5.3605537e+10 0.091610124 0.035365372 -36.864433 56.110798 6511.9668 5.0091829e+10 0.10073126 0.035891752 -37.034321 55.968313 6513.7124 4.6659626e+10 0.11004262 0.036418133 -37.183502 55.843192 6515.4580 4.3767156e+10 0.11969527 0.036944513 -37.325067 55.724458 6517.2035 4.1546616e+10 0.12975529 0.037470894 -37.464162 55.605725 6518.9491 3.9472576e+10 0.14005613 0.037997274 -37.601162 55.486992 6520.6947 3.7146707e+10 0.15040241 0.038523655 -37.747783 55.359921 6522.4403 3.4343998e+10 0.15945151 0.039032560 -37.912152 55.217470 6524.1859 3.1396704e+10 0.16471711 0.039493017 -38.059710 55.085100 6525.9315 2.8697317e+10 0.16872382 0.039675900 -38.192142 54.961799 6527.6771 2.6644034e+10 0.17408267 0.041208081 -38.324575 54.840036 6529.4227 2.5019697e+10 0.17739154 0.042909165 -38.457009 54.721301 6531.1683 2.3286401e+10 0.17945927 0.045473691 -38.592528 54.599080 6532.9139 2.1336874e+10 0.18202072 0.047447686 -38.745974 54.456595 6534.6595 1.9428779e+10 0.18223760 0.048129054 -38.891173 54.320297 6536.4051 1.7744446e+10 0.18070366 0.048152980 -39.019015 54.197021 6538.1507 1.6498353e+10 0.18037486 0.049230077 -39.146259 54.074345 6539.8963 1.5507603e+10 0.17968023 0.050728606 -39.269559 53.955612 6541.6419 1.4562796e+10 0.17720720 0.051118359 -39.392860 53.836879 6543.3875 1.3673515e+10 0.17531576 0.051483600 -39.516159 53.718145 6545.1331 1.2844193e+10 0.17393336 0.052456759 -39.639457 53.599410 6546.8787 1.2090330e+10 0.17199290 0.053187569 -39.762757 53.477241 6548.6243 1.1367586e+10 0.16990310 0.053854088 -39.886057 53.353941 6550.3699 1.0648645e+10 0.16859044 0.055077983 -40.006789 53.230641 6552.1155 9.9405908e+09 0.16708513 0.055557692 -40.125524 53.107340 6553.8611 9.2942459e+09 0.16469376 0.054902198 -40.244258 52.985742 6555.6067 8.7291375e+09 0.16277615 0.054343585 -40.362990 52.867009 6557.3523 8.2389864e+09 0.16081094 0.053645281 -40.481719 52.747446 6559.0979 7.7846946e+09 0.15791633 0.052376131 -40.600429 52.624170 6560.8435 7.3567250e+09 0.15509716 0.051513783 -40.719140 52.500895 6562.5891 6.9606633e+09 0.15260525 0.050319353 -40.833340 52.382129 6564.3347 6.5907533e+09 0.14951132 0.048619912 -40.947507 52.263396 6566.0803 6.2387426e+09 0.14666965 0.047137460 -41.061674 52.140995 6567.8259 5.9115015e+09 0.14456009 0.045918872 -41.175840 52.017695 6569.5715 5.5964832e+09 0.14202321 0.044889620 -41.287206 51.894395 6571.3171 5.3010424e+09 0.13957068 0.044416671 -41.396805 51.771095 6573.0627 5.0275913e+09 0.13733940 0.043607175 -41.506405 51.647795 6574.8083 4.7654922e+09 0.13520715 0.042466787 -41.616005 51.524495 6576.5539 4.5281496e+09 0.13302386 0.040733859 -41.725606 51.402261 6578.2995 4.2994605e+09 0.13083841 0.038176694 -41.835205 51.283526 6580.0451 4.0679046e+09 0.12892178 0.036479091 -41.944804 51.164593 6581.7907 3.8489290e+09 0.12684222 0.035357180 -42.054383 51.041319 6583.5363 3.6430134e+09 0.12499476 0.034750226 -42.163961 50.918045 6585.2819 3.4455064e+09 0.12331112 0.033745419 -42.269660 50.794748 6587.0275 3.2600846e+09 0.12157163 0.033164457 -42.374694 50.671448 6588.7731 3.0840419e+09 0.11976268 0.033121760 -42.479727 50.548147 6590.5187 2.9288094e+09 0.11766144 0.030097258 -42.584760 50.424847 6592.2643 2.7830566e+09 0.11547724 0.027816841 -42.687629 50.301547 6594.0099 2.6334695e+09 0.11320371 0.026167108 -42.788096 50.178247 6595.7555 2.4861978e+09 0.11073937 0.025701915 -42.888563 50.054947 6597.5011 2.3386947e+09 0.10880836 0.025564611 -42.989030 49.931646 6599.2467 2.2105598e+09 0.10713910 0.024944566 -43.088140 49.810011 6600.9923 2.1036327e+09 0.10670013 0.027029778 -43.174252 49.704328 6602.7379 2.0192429e+09 0.10539625 0.026886975 -43.260363 49.598645 6604.4835 1.9400122e+09 0.10387498 0.026358337 -43.354222 49.483454 6606.2291 1.8478247e+09 0.10288239 0.027092360 -43.454689 49.360154 6607.9747 1.7516533e+09 0.10056208 0.023782423 -43.553551 49.236862 6609.7203 1.6545678e+09 0.097701943 0.023919880 -43.649432 49.113586 6611.4658 1.5683481e+09 0.095184889 0.024661382 -43.745316 48.990306 6613.2114 1.4791016e+09 0.094444271 0.023651171 -43.841215 48.867008 6614.9570 1.3912058e+09 0.093684222 0.023281126 -43.937115 48.743709 6616.7026 1.3238666e+09 0.092624908 0.023392579 -44.019726 48.637497 6618.4482 1.2733187e+09 0.092217988 0.024109271 -44.101924 48.531814 6620.1938 1.2272273e+09 0.091753767 0.024829662 -44.189811 48.418818 6621.9394 1.1824032e+09 0.090765936 0.024778066 -44.285711 48.295517 6623.6850 1.1262026e+09 0.089344046 0.024745621 -44.380582 48.172217 6625.4306 1.0737766e+09 0.088539024 0.025911480 -44.471915 48.048916 6627.1762 1.0214428e+09 0.086844223 0.025384886 -44.563249 47.925616 6628.9218 9.5985605e+08 0.086135505 0.026077367 -44.654581 47.802316 6630.6674 9.0585153e+08 0.084949402 0.025929946 -44.745913 47.679016 6632.4130 8.6087422e+08 0.083799213 0.026081870 -44.826209 47.570616 6634.1586 8.3036368e+08 0.082475302 0.026338413 -44.904492 47.464933 6635.9042 8.0333101e+08 0.081156777 0.026535390 -44.985245 47.354125 6637.6498 7.6882926e+08 0.080246228 0.025843149 -45.072012 47.230824 6639.3954 7.3144086e+08 0.079628586 0.025486743 -45.159240 47.107527 6641.1410 6.8950718e+08 0.080102529 0.025148779 -45.250555 46.984250 6642.8866 6.5181680e+08 0.079760012 0.025187978 -45.341869 46.860974 6644.6322 6.2031001e+08 0.078814665 0.025411935 -45.417748 46.753726 6646.3778 5.9258006e+08 0.077774148 0.026115715 -45.492118 46.648044 6648.1234 5.7101330e+08 0.076877594 0.027046895 -45.569277 46.536088 6649.8690 5.4859927e+08 0.076254198 0.026435803 -45.651477 46.412788 6651.6146 5.2407222e+08 0.075912537 0.026955172 -45.734437 46.289488 6653.3602 4.9693588e+08 0.075788334 0.027709569 -45.821203 46.166188 6655.1058 4.7458448e+08 0.074959440 0.027653934 -45.907969 46.042887 6656.8514 4.5387333e+08 0.073571201 0.028770687 -45.978806 45.936792 6658.5970 4.3608494e+08 0.072550987 0.031119868 -46.049261 45.831109 6660.3426 4.1909035e+08 0.071678659 0.031937402 -46.124670 45.717996 6662.0882 3.9896621e+08 0.070682465 0.032994789 -46.206870 45.594696 6663.8338 3.8316494e+08 0.069712898 0.032252148 -46.286345 45.475483 6665.5794 3.6939806e+08 0.069879378 0.027597777 -46.356801 45.369799 6667.3250 3.5779811e+08 0.069510011 0.027222832 -46.427257 45.264115 6669.0706 3.4517852e+08 0.068522040 0.028283204 -46.505666 45.146502 6670.8162 3.2859053e+08 0.068801921 0.026950506 -46.587866 45.023202 6672.5618 3.1030601e+08 0.068664720 0.027205219 -46.667840 44.899902 6674.3074 2.9553940e+08 0.067837763 0.029214088 -46.745472 44.776602 6676.0530 2.8232338e+08 0.065988455 0.031747870 -46.820968 44.658545 6677.7986 2.7073168e+08 0.065190671 0.031222955 -46.891424 44.552862 6679.5442 2.6126780e+08 0.065031188 0.029818088 -46.961879 44.447179 6681.2898 2.4952231e+08 0.065813627 0.029879669 -47.037655 44.328430 6683.0354 2.3905274e+08 0.066307638 0.031240421 -47.115274 44.205156 6684.7810 2.2730961e+08 0.066166136 0.032693723 -47.186771 44.089439 6686.5266 2.1991519e+08 0.065049116 0.034067450 -47.253312 43.979840 6688.2722 2.1315086e+08 0.062920925 0.033848016 -47.319852 43.870242 6690.0178 2.0832359e+08 0.061468642 0.033113828 -47.392905 43.746972 6691.7634 1.9928943e+08 0.060617390 0.032821159 -47.465971 43.623672 6693.5090 1.8665486e+08 0.059982531 0.031429483 -47.542728 43.500373 6695.2546 1.7643753e+08 0.059748227 0.029812714 -47.620363 43.377074 6697.0002 1.6749591e+08 0.059267167 0.030091285 -47.688719 43.264666 6698.7458 1.6023513e+08 0.058220237 0.031241453 -47.751345 43.158983 6700.4914 1.5540833e+08 0.056759414 0.031032170 -47.814634 43.052184 6702.2370 1.4898470e+08 0.055615186 0.033065938 -47.887701 42.928883 6703.9826 1.4395923e+08 0.055758500 0.036133889 -47.960767 42.805583 6705.7281 1.3957184e+08 0.055687627 0.037963108 -48.024713 42.697674 6707.4737 1.3380534e+08 0.055236580 0.040118963 -48.087340 42.591991 6709.2193 1.3205312e+08 0.054458460 0.040993029 -48.153295 42.480692 6710.9649 1.2561253e+08 0.052871312 0.040685371 -48.226362 42.357390 6712.7105 1.1737739e+08 0.051030295 0.043149197 -48.298838 42.234093 6714.4561 1.1050607e+08 0.049073805 0.047337701 -48.367323 42.110817 6716.2017 1.0132849e+08 0.047332440 0.048698501 -48.435809 41.987541 6717.9473 98474795. 0.045494660 0.049815671 -48.498794 41.880782 6719.6929 95033931. 0.044084443 0.050711501 -48.561421 41.775100 6721.4385 91554626. 0.044118869 0.050436031 -48.626303 41.662652 6723.1841 89635516. 0.042837681 0.049471637 -48.694804 41.539351 6724.9297 84503260. 0.038716178 0.042162833 -48.761403 41.419473 6726.6753 80779797. 0.036633433 0.040957458 -48.820116 41.313790 6728.4209 80034478. 0.035692618 0.040224688 -48.878830 41.208107 6730.1665 81775116. 0.033458933 0.040607225 -48.943800 41.091161 6731.9121 75481095. 0.028257151 0.043565314 -49.012299 40.967863 6733.6577 68190625. 0.0038179243 0.047495256 -49.080799 40.844563 6735.4033 60078194. 0.021922070 0.049721583 -49.149300 40.721262 6737.1489 59409582. 0.069704631 0.054609939 -49.215257 40.602539