# # 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 = 61.898532 km # Date (UTC) = 2011-11-26T10:55:14.748 # Date (julian) = 2455891.95503181 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6503.3560 1.2169771e+11 0.061555347 0.033295195 88.784941 34.064763 6506.2871 9.6612105e+10 0.073009146 0.034179079 88.873587 33.882824 6509.2183 7.7638221e+10 0.084460659 0.035062964 88.954099 33.721800 6512.1495 6.4864501e+10 0.096273680 0.035946848 89.034617 33.560761 6515.0806 5.6028006e+10 0.10867728 0.036830733 89.115141 33.399711 6518.0118 4.8837529e+10 0.12157683 0.037714617 89.205037 33.219919 6520.9430 4.2789944e+10 0.13504115 0.038598502 89.293672 33.042652 6523.8741 3.7575286e+10 0.14363091 0.039395761 89.374188 32.881628 6526.8053 3.3122008e+10 0.14946155 0.040512331 89.457439 32.707830 6529.7364 2.9428893e+10 0.15376398 0.043408878 89.542715 32.524378 6532.6676 2.6205977e+10 0.15701487 0.047241910 89.623227 32.357603 6535.5988 2.3622687e+10 0.15790925 0.047964551 89.702043 32.192524 6538.5299 2.1590385e+10 0.15980257 0.049414732 89.776803 32.031497 6541.4611 1.9833029e+10 0.16089968 0.051176998 89.851565 31.870472 6544.3923 1.8234031e+10 0.16180531 0.051962560 89.926330 31.709448 6547.3234 1.6644097e+10 0.16280354 0.053410358 90.009819 31.529623 6550.2546 1.5143746e+10 0.16322797 0.055049107 90.092103 31.352392 6553.1858 1.3771432e+10 0.16219656 0.055241691 90.166863 31.191368 6556.1169 1.2587329e+10 0.15944966 0.053995936 90.241625 31.030343 6559.0481 1.1573527e+10 0.15620785 0.052381755 90.316390 30.869318 6561.9792 1.0692804e+10 0.15278540 0.050890131 90.391150 30.708292 6564.9104 9.8632661e+09 0.14973371 0.048359000 90.466755 30.545448 6567.8416 9.0591203e+09 0.14736317 0.045905617 90.552197 30.361416 6570.7727 8.2823738e+09 0.14556580 0.044597416 90.628477 30.190213 6573.7039 7.5712156e+09 0.14354810 0.043092619 90.697490 30.029188 6576.6351 6.9973046e+09 0.14138518 0.040640423 90.771217 29.868143 6579.5662 6.5251584e+09 0.13864479 0.036759218 90.845527 29.707556 6582.4974 6.1178149e+09 0.13634713 0.035158441 90.914539 29.552283 6585.4286 5.6886473e+09 0.13410567 0.033628154 90.986916 29.387195 6588.3597 5.2576073e+09 0.13218872 0.033259802 91.065789 29.203162 6591.2909 4.8385263e+09 0.12944918 0.028873685 91.136575 29.037991 6594.2220 4.4674467e+09 0.12680193 0.026050632 91.205583 28.876966 6597.1532 4.1751777e+09 0.12363267 0.025674381 91.274595 28.715942 6600.0844 3.9100266e+09 0.12220153 0.025163327 91.343607 28.554917 6603.0155 3.6651685e+09 0.12088448 0.026654077 91.412620 28.393891 6605.9467 3.4496924e+09 0.11943313 0.027459248 91.481629 28.236335 6608.8779 3.2420826e+09 0.11544526 0.023709161 91.550637 28.081061 6611.8090 3.0273845e+09 0.11147407 0.024442537 91.628172 27.900930 6614.7402 2.8175571e+09 0.10948836 0.023430531 91.703664 27.724787 6617.6714 2.6107498e+09 0.10720554 0.023661834 91.772676 27.563762 6620.6025 2.4407496e+09 0.10547341 0.024961358 91.838214 27.406210 6623.5337 2.2966944e+09 0.10295656 0.024689546 91.901474 27.250936 6626.4648 2.1687266e+09 0.10096904 0.025998650 91.969707 27.090687 6629.3960 2.0565577e+09 0.099481921 0.026037506 92.037989 26.929663 6632.3272 1.9498278e+09 0.097724226 0.026071576 92.101249 26.768637 6635.2583 1.8345540e+09 0.096242017 0.026438529 92.168011 26.601245 6638.1895 1.7162305e+09 0.094964038 0.025663386 92.240310 26.423785 6641.1207 1.6011857e+09 0.095484113 0.025148710 92.309772 26.260536 6644.0518 1.4952170e+09 0.094729946 0.025349207 92.378061 26.100223 6646.9830 1.4125648e+09 0.093522684 0.026428974 92.441321 25.944949 6649.9142 1.3403788e+09 0.092460081 0.026373575 92.504579 25.787440 6652.8453 1.2749037e+09 0.091781917 0.027483101 92.567835 25.626415 6655.7765 1.2065629e+09 0.089770313 0.027931059 92.636965 25.454713 6658.7076 1.1347452e+09 0.087537937 0.031316096 92.708105 25.279360 6661.6388 1.0620606e+09 0.085638429 0.032860307 92.771365 25.118336 6664.5700 1.0025336e+09 0.084117980 0.030120596 92.834626 24.959550 6667.5011 9.5389343e+08 0.083389125 0.027287532 92.897886 24.804275 6670.4323 9.0897019e+08 0.082283640 0.027128357 92.957405 24.645260 6673.3635 8.6436909e+08 0.081355527 0.028002798 93.014913 24.484235 6676.2946 8.1404267e+08 0.078317661 0.031903607 93.085904 24.308229 6679.2258 7.6599508e+08 0.076984285 0.030081191 93.154676 24.139425 6682.1570 7.2259693e+08 0.077840061 0.030544459 93.217936 23.984151 6685.0881 6.8773687e+08 0.077510639 0.032797907 93.277451 23.825131 6688.0193 6.5748972e+08 0.074557893 0.033789640 93.334959 23.664105 6690.9504 6.2421315e+08 0.072214920 0.033006942 93.405962 23.488084 6693.8816 5.8786740e+08 0.071031350 0.031301644 93.472480 23.319298 6696.8128 5.5400586e+08 0.070817706 0.030013474 93.529993 23.164025 6699.7439 5.2458732e+08 0.069212141 0.030903996 93.591259 23.008736 6702.6751 5.0336307e+08 0.067729051 0.033415797 93.654529 22.853439 6705.6063 4.7977553e+08 0.068000295 0.037746411 93.720031 22.677924 6708.5374 4.5492866e+08 0.067492955 0.040628812 93.782533 22.506912 6711.4686 4.3012159e+08 0.065310970 0.041225355 93.840050 22.345862 6714.3997 4.0622475e+08 0.062594844 0.047333462 93.902928 22.174095 6717.3309 3.8756944e+08 0.060033002 0.049853800 93.967571 21.999556 6720.2621 3.6597281e+08 0.058493940 0.050389400 94.025079 21.844282 6723.1932 3.4753967e+08 0.057570540 0.049476717 94.082589 21.689008 6726.1244 3.3149678e+08 0.052793869 0.040952489 94.140101 21.533734 6729.0556 3.1524192e+08 0.051900911 0.041008391 94.202984 21.363952 6731.9867 3.0232524e+08 0.049431067 0.043713800 94.267620 21.189431 6734.9179 2.8960270e+08 0.049115897 0.049298372 94.325128 21.034157 6737.8491 2.7577453e+08 0.051184360 0.056840259 94.385871 20.870150 6740.7802 2.6689603e+08 0.050420068 0.065383235 94.451596 20.692690 6743.7114 2.5354677e+08 0.045113359 0.075846420 94.517320 20.515230 6746.6425 2.4152552e+08 0.040616670 0.071516940 94.580165 20.345550 6749.5737 2.3084242e+08 0.037732320 0.072120850 94.637678 20.190276 6752.5049 2.1781397e+08 0.033821453 0.073550242 94.696192 20.021429 6755.4360 2.0831480e+08 0.031484464 0.074414170 94.755195 19.845975 6758.3672 1.9776022e+08 0.030396391 0.074481820 94.812703 19.690699 6761.2984 1.8867811e+08 0.032101826 0.077992876 94.870790 19.529937 6764.2295 1.8005827e+08 0.037853540 0.079494282 94.929946 19.359050 6767.1607 1.7198448e+08 0.038290413 0.081795831 94.994554 19.182707 6770.0919 1.6577261e+08 0.032148224 0.087102492 95.055969 19.012093 6773.0230 1.6032063e+08 0.026882250 0.094211853 95.107725 18.856820 6775.9542 1.5648064e+08 0.021585985 0.10132121 95.167441 18.688908 6778.8853 1.4871871e+08 0.016341720 0.10843057 95.232854 18.511765 6781.8165 1.3973982e+08 0.011112012 0.11553993 95.292005 18.340876 6784.7477 1.3391342e+08 0.0058318323 0.12264929 95.347263 18.178212 6787.6788 1.2714182e+08 0.00056112663 0.12975865 95.399024 18.022938 6790.6100 1.2490273e+08 -0.0047726384 0.13686801 95.461786 17.850185 6793.5412 1.1847092e+08 -0.010056535 0.14397737 95.525760 17.674476 6796.4723 1.1152739e+08 -0.015341864 0.15108673 95.584910 17.503589 6799.4035 1.0628562e+08 -0.020647967 0.15819609 95.644065 17.327806 6802.3347 1.0154593e+08 -0.025964521 0.16530546 95.703220 17.150347 6805.2658 1.0012265e+08 -0.031305386 0.17241482 95.762371 16.972886 6808.1970 98442844. -0.036642339 0.17952418 95.821525 16.800039 6811.1281 95431780. -0.041970098 0.18663354 95.880680 16.627966 6814.0593 90160723. -0.047295990 0.19374290 95.939831 16.450506 6816.9905 84583499. -0.052613155 0.20085226 95.998985 16.277378 6819.9216 79697788. -0.057911057 0.20796162 96.058140 16.105586 6822.8528 76716772. -0.063172812 0.21507098 96.117291 15.928127 6825.7840 73762849. -0.068422690 0.22218034 96.176445 15.754717 6828.7151 70041200. -0.073690507 0.22928970 96.235601 15.583829 6831.6463 66827662. -0.078962744 0.23639906 96.294752 15.412942 6834.5775 64674657. -0.084225683 0.24350842 96.353905 15.238287 6837.5086 62428016. -0.089506222 0.25061778 96.412721 15.061167 6840.4398 62606253. -0.094737654 0.25772714 96.465298 14.890281 6843.3709 60205135. -0.10008046 0.26483650 96.526592 14.704290 6846.3021 57903282. -0.10548714 0.27194586 96.593378 14.509871 6849.2333 53329242. -0.11113040 0.27905522 96.652528 14.332411 6852.1644 50986852. -0.11689395 0.28616458 96.707051 14.159582 6855.0956 50589035. -0.12288908 0.29327394 96.762640 13.983483 6858.0268 49896009. -0.13022450 0.30038330 96.831637 13.784149 6860.9579 48786347. -0.14840288 0.30749266 96.891986 13.609816 6863.8891 45785547. -0.14311838 0.31460202 96.948792 13.436580 6866.8203 44239752. -0.12265941 0.32171138 97.001374 13.259120