# # 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 = 69.618630 km # Date (UTC) = 2014-12-14T10:36:00.280 # Date (julian) = 2457005.94166991 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6502.7343 4.8195299e+10 0.054351081 0.033107726 97.407815 27.576849 6505.3144 4.4594131e+10 0.064983671 0.033885749 97.468334 27.453336 6507.8945 4.1375454e+10 0.075997646 0.034663773 97.531328 27.327347 6510.4746 3.8300747e+10 0.087382230 0.035441796 97.593301 27.202378 6513.0547 3.5469614e+10 0.099193051 0.036219819 97.651802 27.080873 6515.6348 3.2889692e+10 0.11146608 0.036997842 97.710303 26.959368 6518.2149 3.0463227e+10 0.12419037 0.037775865 97.768796 26.837880 6520.7950 2.8172155e+10 0.13736507 0.038553889 97.827290 26.716391 6523.3751 2.5912421e+10 0.14699320 0.039272083 97.882263 26.594903 6525.9552 2.3762472e+10 0.15223604 0.039673198 97.936259 26.473414 6528.5353 2.1749838e+10 0.15791022 0.041867151 97.992775 26.351925 6531.1154 1.9949074e+10 0.16160978 0.045396674 98.051269 26.230436 6533.6955 1.8354632e+10 0.16531392 0.047815163 98.109766 26.107421 6536.2756 1.6866411e+10 0.16624397 0.048037111 98.168270 25.981417 6538.8557 1.5472740e+10 0.16806340 0.049573376 98.226252 25.855935 6541.4358 1.4118216e+10 0.16858055 0.051185192 98.280245 25.734446 6544.0159 1.2857455e+10 0.16813109 0.051657275 98.334238 25.612957 6546.5960 1.1749946e+10 0.16765109 0.052954969 98.392255 25.491468 6549.1761 1.0785919e+10 0.16619200 0.054145782 98.450751 25.369979 6551.7562 9.9445244e+09 0.16476699 0.055501204 98.506226 25.248490 6554.3363 9.1823912e+09 0.16220234 0.054839438 98.560219 25.127001 6556.9165 8.4713533e+09 0.15993120 0.053878390 98.616236 25.005505 6559.4966 7.8451278e+09 0.15707114 0.052331134 98.674740 24.884001 6562.0767 7.2732050e+09 0.15429021 0.050806962 98.732223 24.762500 6564.6568 6.7655857e+09 0.15156701 0.048473954 98.786216 24.641011 6567.2369 6.3030389e+09 0.14958113 0.046416914 98.840209 24.519522 6569.8170 5.8644067e+09 0.14811820 0.044905596 98.894205 24.398033 6572.3971 5.4668942e+09 0.14655827 0.044002765 98.948201 24.276544 6574.9772 5.1039913e+09 0.14466552 0.042385672 99.002198 24.155055 6577.5573 4.7743693e+09 0.14229615 0.039345029 99.056194 24.033566 6580.1374 4.4804968e+09 0.13988859 0.036393796 99.110192 23.912068 6582.7175 4.2181708e+09 0.13771916 0.035098548 99.164192 23.790563 6585.2976 3.9671071e+09 0.13562640 0.033732862 99.218191 23.669064 6587.8777 3.7411734e+09 0.13370391 0.033352831 99.272187 23.547576 6590.4578 3.5259210e+09 0.13110528 0.030210506 99.326184 23.426603 6593.0379 3.3332301e+09 0.12834656 0.027066992 99.380180 23.309613 6595.6180 3.1727649e+09 0.12495584 0.025687659 99.434176 23.192624 6598.1981 3.0219640e+09 0.12207357 0.025312586 99.484157 23.071621 6600.7782 2.8749634e+09 0.12085417 0.026589715 99.533653 22.950132 6603.3583 2.7160833e+09 0.11897543 0.026451158 99.590687 22.818458 6605.9384 2.5478125e+09 0.11771583 0.027452293 99.651439 22.681760 6608.5185 2.3881826e+09 0.11461000 0.023718662 99.707499 22.555625 6611.0986 2.2481308e+09 0.11117226 0.024895569 99.761495 22.434137 6613.6787 2.1301634e+09 0.11036656 0.023822613 99.813367 22.314773 6616.2588 2.0262753e+09 0.10913494 0.023322921 99.862862 22.197784 6618.8389 1.9288891e+09 0.10875847 0.024404283 99.912358 22.079671 6621.4190 1.8397699e+09 0.10813241 0.024950558 99.961854 21.958182 6623.9991 1.7576795e+09 0.10631417 0.024861987 100.01147 21.836693 6626.5792 1.6768645e+09 0.10491714 0.025852907 100.06547 21.715188 6629.1593 1.5973408e+09 0.10357334 0.026080297 100.11947 21.593683 6631.7394 1.5299270e+09 0.10174922 0.026005878 100.16985 21.475813 6634.3195 1.4623338e+09 0.10016430 0.026350152 100.21934 21.358824 6636.8996 1.3968906e+09 0.098519730 0.026200384 100.27244 21.230364 6639.4797 1.3289280e+09 0.097750479 0.025456602 100.32813 21.093688 6642.0599 1.2594531e+09 0.098130559 0.025154145 100.38005 20.968965 6644.6400 1.2000131e+09 0.096913411 0.025412771 100.42955 20.851976 6647.2201 1.1439354e+09 0.095470901 0.026553641 100.47904 20.733255 6649.8002 1.0910123e+09 0.094262976 0.026530706 100.52854 20.611766 6652.3803 1.0452688e+09 0.093405741 0.027355147 100.57804 20.491005 6654.9604 1.0044106e+09 0.091889213 0.027627101 100.62754 20.374000 6657.5405 9.6740595e+08 0.089359286 0.029528038 100.67704 20.256996 6660.1206 9.2647084e+08 0.087305897 0.031735592 100.73235 20.121495 6662.7007 8.8145157e+08 0.085352107 0.032651151 100.78804 19.984818 6665.2808 8.3795803e+08 0.084411891 0.028087065 100.83775 19.867134 6667.8609 7.9887153e+08 0.083689540 0.027419674 100.88725 19.750144 6670.4410 7.7015891e+08 0.083082792 0.027124331 100.93674 19.633155 6673.0211 7.4161474e+08 0.082783232 0.027490755 100.98624 19.516166 6675.6012 7.1034430e+08 0.080696987 0.030949858 101.03895 19.388941 6678.1813 6.7389238e+08 0.079342206 0.030815357 101.09464 19.252265 6680.7614 6.4352069e+08 0.079952884 0.029605834 101.14450 19.126299 6683.3415 6.1377478e+08 0.080659735 0.031689053 101.18950 19.009294 6685.9216 5.9210981e+08 0.080105257 0.033678277 101.23595 18.892294 6688.5017 5.7365568e+08 0.076930676 0.033901001 101.28545 18.775304 6691.0818 5.5418007e+08 0.075226188 0.032981961 101.33556 18.656854 6693.6619 5.3657243e+08 0.073974115 0.031377012 101.39125 18.525239 6696.2420 5.1224213e+08 0.073564610 0.029776338 101.44560 18.394884 6698.8221 4.8866805e+08 0.072181835 0.031346269 101.49060 18.273395 6701.4022 4.6846328e+08 0.069996711 0.031999619 101.53559 18.151906 6703.9823 4.5093568e+08 0.069841946 0.036133323 101.59023 18.021284 6706.5624 4.3072971e+08 0.069629596 0.039425265 101.64591 17.889669 6709.1425 4.1254479e+08 0.068773181 0.041041887 101.69170 17.771591 6711.7226 3.9668911e+08 0.066364233 0.041514391 101.73670 17.654586 6714.3027 3.7886355e+08 0.063748517 0.047326168 101.78566 17.527290 6716.8828 3.6117782e+08 0.061361999 0.049701702 101.83628 17.395675 6719.4629 3.4269700e+08 0.059020136 0.050930010 101.88608 17.274722 6722.0430 3.2908311e+08 0.059096111 0.050551988 101.93557 17.157733 6724.6231 3.2046443e+08 0.055309228 0.044722970 101.98564 17.033335 6727.2033 3.1346118e+08 0.052647701 0.040689597 102.03626 16.901720 6729.7834 3.0393257e+08 0.051721388 0.040523302 102.08688 16.770105 6732.3635 2.9060457e+08 0.049927814 0.043807120 102.13751 16.638490 6734.9436 2.7659637e+08 0.049861256 0.049296828 102.18500 16.515001 6737.5237 2.6314665e+08 0.051831076 0.055803710 102.23000 16.398011 6740.1038 2.5235242e+08 0.051875051 0.064227630 102.27687 16.276142 6742.6839 2.4476503e+08 0.048510027 0.070277130 102.32750 16.144508 6745.2640 2.3537802e+08 0.044641245 0.078677859 102.37812 16.012880 6747.8441 2.2360196e+08 0.040358694 0.067070578 102.42874 15.881266 6750.4242 2.1242732e+08 0.037676373 0.072728435 102.47936 15.749651 6753.0043 2.0091132e+08 0.034844641 0.072991148 102.52998 15.618036 6755.5844 1.9304152e+08 0.032384373 0.074349130 102.57832 15.492375 6758.1645 1.8748665e+08 0.031249034 0.074053155 102.62331 15.375385 6760.7446 1.8313657e+08 0.031751966 0.077481173 102.66935 15.256629 6763.3247 1.7939037e+08 0.037277242 0.077426628 102.71997 15.130077 6765.9048 1.7590680e+08 0.039651913 0.079696367 102.77059 15.002465 6768.4849 1.6958742e+08 0.035664504 0.082600812 102.82121 14.870851 6771.0650 1.6414404e+08 0.030575982 0.089462802 102.87183 14.739236 6773.6451 1.5657943e+08 0.025881587 0.095720687 102.92245 14.607621 6776.2252 1.4868256e+08 0.021206055 0.10197857 102.97177 14.477309 6778.8053 1.4352347e+08 0.016540278 0.10823646 103.01734 14.350737 6781.3854 1.3959927e+08 0.011910720 0.11449434 103.06433 14.222737 6783.9655 1.3887894e+08 0.0072992868 0.12075222 103.11496 14.091121 6786.5456 1.3514978e+08 0.0027446811 0.12701011 103.16558 13.959506 6789.1257 1.2903754e+08 -0.0017799744 0.13326799 103.21620 13.827891 6791.7058 1.2267510e+08 -0.0062909216 0.13952588 103.26513 13.697958 6794.2859 1.1903042e+08 -0.010818749 0.14578376 103.31069 13.571405 6796.8660 1.1777456e+08 -0.015361656 0.15204165 103.36064 13.436338 6799.4461 1.1380337e+08 -0.019866821 0.15829953 103.41849 13.285917 6802.0262 1.0938214e+08 -0.024356040 0.16455741 103.46862 13.150491 6804.6063 1.0313492e+08 -0.028808949 0.17081530 103.51418 13.023938 6807.1864 98703202. -0.033266635 0.17707318 103.56304 12.894081 6809.7665 97035702. -0.037747639 0.18333107 103.61366 12.762466 6812.3467 96937205. -0.042244520 0.18958895 103.66086 12.634280 6814.9268 95776043. -0.046717916 0.19584683 103.70642 12.507728 6817.5069 91983222. -0.051144121 0.20210472 103.76061 12.364423 6820.0870 85864401. -0.055513423 0.20836260 103.81846 12.214002 6822.6671 82237131. -0.059907450 0.21462049 103.86435 12.086814 6825.2472 82542920. -0.064367798 0.22087837 103.90993 11.960176 6827.8273 81681114. -0.068799787 0.22713626 103.96196 11.809890 6830.4074 79332512. -0.073193904 0.23339414 104.01364 11.665900 6832.9875 75936357. -0.077554389 0.23965202 104.06426 11.539347 6835.5676 71347569. -0.081849948 0.24590991 104.11531 11.407478 6838.1477 70647783. -0.086225608 0.25216779 104.16738 11.262844 6840.7278 70077105. -0.090587229 0.25842568 104.21576 11.125572 6843.3079 66053089. -0.094815061 0.26468356 104.26132 10.993957 6845.8880 65388945. -0.099155243 0.27094145 104.31072 10.854659 6848.4681 62307507. -0.10339272 0.27719933 104.36279 10.710025 6851.0482 60019157. -0.10764636 0.28345721 104.41486 10.565389 6853.6283 60534807. -0.11203475 0.28971510 104.46606 10.423160 6856.2084 58238725. -0.11627449 0.29597298 104.51162 10.296607 6858.7885 57653460. -0.12059621 0.30223087 104.55912 10.167204 6861.3686 54123219. -0.12470928 0.30848875 104.61697 10.022569 6863.9487 48359323. -0.12856074 0.31474664 104.67234 9.8754522 6866.5288 45074747. -0.13249122 0.32100452 104.72441 9.7250325 6869.1089 44471156. -0.13661212 0.32726240 104.77648 9.5786658 6871.6890 45427889. -0.14081412 0.33352029 104.82855 9.4340310 6874.2691 46082895. -0.14481469 0.33977817 104.88062 9.2893953 6876.8492 45477319. -0.14824802 0.34603606 104.93269 9.1447597 6879.4293 44360412. -0.15080683 0.35229394 104.98476 9.0001249 6882.0094 41716712. -0.14289905 0.35855183 105.03682 8.8554902 6884.5895 39526697. -0.15726870 0.36480971 105.08889 8.7108554 6887.1696 38343984. -0.18535275 0.37106759 105.13641 8.5662198