# # 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 = 44.070586 km # Date (UTC) = 2015-12-01T10:13:04.178 # Date (julian) = 2457357.92574280 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6497.7412 8.2515661e+10 0.034574731 0.031602081 -29.157376 56.663900 6499.7148 7.5596979e+10 0.041970559 0.032197197 -29.281280 56.584739 6501.6883 6.8941568e+10 0.049543498 0.032792314 -29.413171 56.498775 6503.6619 6.2727622e+10 0.057384237 0.033387431 -29.548694 56.409717 6505.6354 5.7437135e+10 0.065656400 0.033982547 -29.682638 56.321697 6507.6089 5.2774635e+10 0.074402598 0.034577664 -29.803116 56.242525 6509.5825 4.8709403e+10 0.083680818 0.035172781 -29.923594 56.163352 6511.5560 4.5185481e+10 0.093534188 0.035767897 -30.046304 56.082205 6513.5296 4.1890478e+10 0.10388294 0.036363014 -30.177954 55.993148 6515.5031 3.8678694e+10 0.11466067 0.036958131 -30.309603 55.904091 6517.4767 3.5422000e+10 0.12575978 0.037553248 -30.441253 55.815034 6519.4502 3.2397500e+10 0.13725095 0.038148364 -30.572904 55.725977 6521.4237 2.9691451e+10 0.14913381 0.038743481 -30.703929 55.637262 6523.3973 2.7331010e+10 0.15739935 0.039277578 -30.817507 55.558101 6525.3708 2.5214911e+10 0.16424060 0.039739893 -30.931085 55.478941 6527.3444 2.3286386e+10 0.17019550 0.040966486 -31.046497 55.398503 6529.3179 2.1478997e+10 0.17436488 0.042742189 -31.174275 55.309445 6531.2915 1.9761945e+10 0.17760638 0.045652894 -31.302053 55.220388 6533.2650 1.8145568e+10 0.18033224 0.047632203 -31.420190 55.136739 6535.2385 1.6668784e+10 0.18073029 0.048120819 -31.530326 55.057579 6537.2121 1.5378264e+10 0.18021231 0.048785214 -31.640463 54.978418 6539.1856 1.4179946e+10 0.17875246 0.049868325 -31.759437 54.892905 6541.1592 1.3070315e+10 0.17685670 0.051274911 -31.883362 54.803835 6543.1327 1.2035195e+10 0.17499082 0.051416725 -32.006476 54.715347 6545.1063 1.1134222e+10 0.17341946 0.052456519 -32.116612 54.636186 6547.0798 1.0337318e+10 0.17144032 0.053317711 -32.226748 54.557026 6549.0533 9.6462142e+09 0.16906843 0.054020640 -32.338402 54.475755 6551.0269 9.0120855e+09 0.16734809 0.055245188 -32.458437 54.382824 6553.0004 8.4004175e+09 0.16607055 0.055334852 -32.578471 54.289894 6554.9740 7.8319498e+09 0.16426937 0.054852819 -32.688928 54.204823 6556.9475 7.3109386e+09 0.16193612 0.053873823 -32.792181 54.125662 6558.9211 6.8440819e+09 0.15908750 0.052454450 -32.895434 54.046502 6560.8946 6.4039197e+09 0.15629490 0.051467712 -33.009850 53.958181 6562.8681 5.9964371e+09 0.15387898 0.050053833 -33.129884 53.865251 6564.8417 5.6096545e+09 0.15129250 0.048390145 -33.248249 53.773458 6566.8152 5.2548691e+09 0.14871990 0.046721711 -33.348073 53.694287 6568.7888 4.9478226e+09 0.14616830 0.045046592 -33.447896 53.615116 6570.7623 4.6858854e+09 0.14399674 0.044601732 -33.550620 53.533503 6572.7359 4.4459549e+09 0.14145565 0.043808748 -33.666783 53.440574 6574.7094 4.2065662e+09 0.13846945 0.042514281 -33.782945 53.347646 6576.6829 3.9647448e+09 0.13547197 0.040585308 -33.896803 53.257020 6578.6565 3.7253498e+09 0.13238507 0.037612942 -34.009092 53.167963 6580.6300 3.5048542e+09 0.12990866 0.035938513 -34.121185 53.078985 6582.6036 3.3114974e+09 0.12797030 0.035129545 -34.217555 52.996382 6584.5771 3.1401480e+09 0.12600231 0.034201133 -34.313926 52.913779 6586.5507 2.9669261e+09 0.12412845 0.033164178 -34.411583 52.830073 6588.5242 2.7977170e+09 0.12255736 0.033204871 -34.520000 52.737143 6590.4977 2.6340801e+09 0.12047343 0.030136179 -34.628417 52.644213 6592.4713 2.4795767e+09 0.11833779 0.027615759 -34.730519 52.558501 6594.4448 2.3419517e+09 0.11601692 0.025928331 -34.826888 52.479341 6596.4184 2.2283976e+09 0.11326208 0.025725372 -34.923257 52.400180 6598.3919 2.1192525e+09 0.11125837 0.025220049 -35.027091 52.312492 6600.3655 2.0068920e+09 0.11057236 0.025741200 -35.135526 52.219550 6602.3390 1.8958871e+09 0.10960466 0.027227339 -35.243395 52.126985 6604.3125 1.8067865e+09 0.10790567 0.026256858 -35.336322 52.044382 6606.2861 1.7101477e+09 0.10697438 0.026989864 -35.429248 51.961779 6608.2596 1.6191989e+09 0.10427793 0.023725507 -35.523190 51.877823 6610.2332 1.5500079e+09 0.10099449 0.024225776 -35.623864 51.784894 6612.2067 1.4829704e+09 0.098450646 0.024166297 -35.724539 51.691965 6614.1803 1.4089284e+09 0.096957951 0.023816297 -35.820965 51.606587 6616.1538 1.3212200e+09 0.095092174 0.023306439 -35.913893 51.527425 6618.1274 1.2534923e+09 0.094072948 0.023866961 -36.006821 51.448263 6620.1009 1.1784922e+09 0.093125386 0.024799711 -36.104728 51.360250 6622.0744 1.1135553e+09 0.091744523 0.024738180 -36.205401 51.267322 6624.0480 1.0688903e+09 0.089829182 0.024887994 -36.306074 51.174393 6626.0215 1.0439549e+09 0.088790806 0.026563481 -36.406748 51.081463 6627.9951 1.0256262e+09 0.087229028 0.025701189 -36.507422 50.988533 6629.9686 9.9263974e+08 0.086149903 0.025933977 -36.601113 50.900532 6631.9422 9.5563780e+08 0.084674976 0.026026469 -36.687168 50.817919 6633.9157 9.1106640e+08 0.083540437 0.026312124 -36.773224 50.735307 6635.8892 8.7106567e+08 0.082382641 0.026533143 -36.865433 50.646786 6637.8628 8.4249660e+08 0.081524215 0.025738847 -36.962234 50.553856 6639.8363 8.0644307e+08 0.081388520 0.025329153 -37.059035 50.460926 6641.8099 7.7164631e+08 0.081678430 0.025151050 -37.155837 50.367997 6643.7834 7.5714298e+08 0.080708998 0.025310904 -37.252639 50.275068 6645.7570 7.1690980e+08 0.079892344 0.025806289 -37.343655 50.186347 6647.7305 6.7051527e+08 0.079062257 0.026822390 -37.426257 50.103744 6649.7040 6.2260715e+08 0.078334129 0.026663202 -37.508859 50.021141 6651.6776 5.8824341e+08 0.077841498 0.027003436 -37.596645 49.933355 6653.6511 5.4571366e+08 0.077351558 0.027858104 -37.689574 49.840427 6655.6247 4.9140832e+08 0.076055180 0.027868331 -37.782504 49.747498 6657.5982 4.5889093e+08 0.074563728 0.029595020 -37.875433 49.654568 6659.5718 4.0344023e+08 0.073446306 0.031715329 -37.968361 49.561639 6661.5453 3.6571244e+08 0.072243391 0.032812682 -38.057817 49.472182 6663.5188 3.3871075e+08 0.071120050 0.032339429 -38.140431 49.389568 6665.4924 3.0733104e+08 0.071140398 0.027740339 -38.223045 49.306953 6667.4659 2.8186795e+08 0.070899878 0.027274601 -38.308441 49.219887 6669.4395 2.4175006e+08 0.070677864 0.027904334 -38.397498 49.126959 6671.4130 2.1493002e+08 0.071290656 0.026871234 -38.486555 49.034030 6673.3866 1.8931530e+08 0.071514960 0.028037344 -38.575612 48.941101 6675.3601 1.8903807e+08 0.069878326 0.030488083 -38.664669 48.848171 6677.3336 2.0910146e+08 0.067737078 0.031883908 -38.753726 48.755241 6679.3072 2.2363672e+08 0.067074458 0.030013925 -38.842783 48.662313 6681.2807 2.3831245e+08 0.067724194 0.029872731 -38.931840 48.569384 6683.2543 2.3307016e+08 0.068228140 0.031561222 -39.011777 48.481163 6685.2278 2.2459278e+08 0.068053056 0.032945468 -39.087496 48.395119 6687.2014 2.1189007e+08 0.066446975 0.034230600 -39.163216 48.309074 6689.1749 2.0149219e+08 0.064015474 0.033858583 -39.246303 48.217670 6691.1484 1.9519751e+08 0.063190489 0.032966239 -39.331489 48.124740 6693.1220 1.8110752e+08 0.062565035 0.031562239 -39.416674 48.031811 6695.0955 1.6795463e+08 0.062184454 0.029841926 -39.501858 47.938882 6697.0691 1.5396480e+08 0.061800927 0.030100007 -39.587042 47.845954 6699.0426 1.4251188e+08 0.060701854 0.031551107 -39.672235 47.753016 6701.0162 1.2723620e+08 0.059237609 0.031433160 -39.757434 47.660072 6702.9897 1.1799899e+08 0.059093616 0.033667014 -39.842512 47.567129 6704.9632 1.1588751e+08 0.059190766 0.036650559 -39.923825 47.474201 6706.9368 1.1148669e+08 0.058863531 0.040076816 -40.005137 47.381272 6708.9103 1.0902253e+08 0.058384624 0.041034900 -40.086450 47.288343 6710.8839 1.1082120e+08 0.056865282 0.040669503 -40.167764 47.195413 6712.8574 1.1235300e+08 0.055081464 0.043421902 -40.249077 47.102482 6714.8310 1.1130259e+08 0.053323147 0.047365880 -40.322568 47.015513 6716.8045 1.1130034e+08 0.051605699 0.049586325 -40.394846 46.929469 6718.7780 1.1012083e+08 0.049600225 0.051024168 -40.467125 46.843425 6720.7516 1.0745453e+08 0.049887395 0.050332681 -40.548078 46.750769 6722.7251 1.0365964e+08 0.049366007 0.049708747 -40.629390 46.657839 6724.6987 1.0275743e+08 0.046053719 0.044092243 -40.709241 46.564910 6726.6722 1.0111454e+08 0.043968150 0.040957430 -40.786683 46.471981 6728.6458 1.0214600e+08 0.043700673 0.040543361 -40.864124 46.379053 6730.6193 99843464. 0.042300201 0.041228050 -40.944643 46.286123 6732.5929 97096167. 0.041150432 0.043849351 -41.025957 46.193193 6734.5664 89531768. 0.040935965 0.049319521 -41.106447 46.100263 6736.5399 84921405. 0.042652349 0.052396273 -41.183889 46.007334 6738.5135 82545734. 0.043655873 0.060148040 -41.261330 45.914406 6740.4870 79765271. 0.043131253 0.064882359 -41.336339 45.819029 6742.4606 78560641. 0.040587994 0.069733009 -41.409919 45.722213 6744.4341 76468684. 0.036741747 0.078129185 -41.484208 45.624951 6746.4077 73490332. 0.034354434 0.074247852 -41.572714 45.518743 6748.3812 70744087. 0.031967252 0.069022387 -41.661220 45.412535 6750.3547 64729062. 0.029101891 0.072609864 -41.737958 45.316789 6752.3283 58971257. 0.025740916 0.073754592 -41.811527 45.223861 6754.3018 53070251. 0.020242803 0.075728098 -41.885096 45.130932 6756.2754 47780108. 0.020776725 0.074875474 -41.958666 45.038002 6758.2489 45055245. 0.026393318 0.074231680 -42.032236 44.945071 6760.2225 44609950. 0.031046641 0.076485483 -42.105806 44.849731