# # 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 = 56.150235 km # Date (UTC) = 2015-11-16T10:19:56.929 # Date (julian) = 2457342.93052001 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6501.2493 6.5315735e+10 0.048404243 0.032659926 100.59755 30.161755 6503.5168 6.0507581e+10 0.057215922 0.033343696 100.65856 30.014303 6505.7844 5.6854322e+10 0.066556480 0.034027465 100.71878 29.866053 6508.0519 5.3429611e+10 0.076385273 0.034711235 100.77471 29.713518 6510.3194 4.9590418e+10 0.086536294 0.035395004 100.83241 29.557274 6512.5870 4.5452407e+10 0.096961636 0.036078774 100.89767 29.385242 6514.8545 4.1070816e+10 0.10762023 0.036762543 100.95822 29.225611 6517.1220 3.7049531e+10 0.11870365 0.037446313 101.01415 29.078160 6519.3896 3.3803721e+10 0.13044205 0.038130082 101.07008 28.927975 6521.6571 3.1071811e+10 0.14277485 0.038813851 101.12601 28.775439 6523.9246 2.8594944e+10 0.14996493 0.039408282 101.18194 28.625806 6526.1922 2.6290147e+10 0.15561967 0.039869560 101.23787 28.478356 6528.4597 2.4150805e+10 0.16147859 0.041807173 101.29380 28.330904 6530.7272 2.2194773e+10 0.16591784 0.044846830 101.34973 28.183452 6532.9948 2.0369902e+10 0.17050355 0.047515229 101.40566 28.036001 6535.2623 1.8680583e+10 0.17265395 0.048110504 101.46159 27.888551 6537.5299 1.7193427e+10 0.17423912 0.048935029 101.51751 27.737690 6539.7974 1.5862726e+10 0.17529219 0.050608849 101.57344 27.585154 6542.0649 1.4679587e+10 0.17399763 0.051026888 101.62579 27.436198 6544.3325 1.3564135e+10 0.17226660 0.051914048 101.67664 27.288746 6546.6000 1.2524895e+10 0.17025204 0.052958229 101.73124 27.141294 6548.8675 1.1572309e+10 0.16797431 0.053926722 101.78717 26.993842 6551.1351 1.0697108e+10 0.16614503 0.055283163 101.83918 26.846391 6553.4026 9.9308603e+09 0.16448847 0.055132682 101.89002 26.698940 6555.6701 9.2098757e+09 0.16225417 0.054290284 101.94495 26.551489 6557.9377 8.5564969e+09 0.16030630 0.053278367 102.00088 26.404037 6560.2052 7.9680501e+09 0.15781063 0.052089281 102.05256 26.256587 6562.4728 7.4115876e+09 0.15511709 0.050430064 102.10340 26.109136 6564.7403 6.8976633e+09 0.15268679 0.048436099 102.15425 25.961684 6567.0078 6.4308072e+09 0.15068939 0.046610573 102.20509 25.814232 6569.2754 6.0144364e+09 0.14874158 0.044870346 102.26053 25.666782 6571.5429 5.6544638e+09 0.14721903 0.044355000 102.31646 25.519331 6573.8104 5.3551053e+09 0.14480508 0.043007130 102.36763 25.371880 6576.0780 5.0799114e+09 0.14230491 0.041281653 102.41847 25.224428 6578.3455 4.8076789e+09 0.13952961 0.038104026 102.46932 25.076977 6580.6130 4.5340566e+09 0.13665011 0.035954217 102.52016 24.929526 6582.8806 4.2697988e+09 0.13419470 0.035054166 102.57101 24.782074 6585.1481 4.0141372e+09 0.13155187 0.033852362 102.62167 24.634623 6587.4156 3.7882695e+09 0.12881734 0.033250461 102.66743 24.487172 6589.6832 3.5719074e+09 0.12582564 0.031690605 102.71354 24.339721 6591.9507 3.3685401e+09 0.12243176 0.028129135 102.76439 24.192269 6594.2183 3.1838489e+09 0.11943944 0.026052713 102.81458 24.046716 6596.4858 3.0305918e+09 0.11650778 0.025725065 102.85907 23.917699 6598.7533 2.9018444e+09 0.11463889 0.025047501 102.90356 23.788683 6601.0209 2.7820644e+09 0.11464792 0.027055515 102.95349 23.648249 6603.2884 2.6672648e+09 0.11364496 0.026492543 103.00433 23.505881 6605.5559 2.5375380e+09 0.11317520 0.027131428 103.05066 23.358998 6607.8235 2.4165193e+09 0.11136067 0.024080951 103.09642 23.211547 6610.0910 2.3011467e+09 0.10840251 0.024089933 103.14686 23.064095 6612.3585 2.1904782e+09 0.10631488 0.024052863 103.19771 22.916643 6614.6261 2.0811723e+09 0.10529943 0.023509149 103.24370 22.774047 6616.8936 1.9728469e+09 0.10393295 0.023422552 103.28946 22.631681 6619.1612 1.8683019e+09 0.10327508 0.024564797 103.34024 22.484290 6621.4287 1.7664627e+09 0.10237982 0.024947357 103.39098 22.336840 6623.6962 1.6665782e+09 0.10060308 0.024749765 103.43674 22.189387 6625.9638 1.5730251e+09 0.099365131 0.026547657 103.48219 22.043187 6628.2313 1.4954982e+09 0.097464933 0.025797003 103.52223 21.918619 6630.4988 1.4342939e+09 0.095631217 0.025929531 103.56227 21.794052 6632.7664 1.3771899e+09 0.093795125 0.026124239 103.60693 21.651019 6635.0339 1.3161996e+09 0.092024385 0.026404872 103.65269 21.503567 6637.3014 1.2500946e+09 0.090243705 0.026013777 103.70272 21.356117 6639.5690 1.1907132e+09 0.089282018 0.025424711 103.75357 21.208666 6641.8365 1.1313444e+09 0.089336190 0.025151141 103.79997 21.065655 6644.1040 1.0696189e+09 0.088213450 0.025354851 103.84573 20.923287 6646.3716 1.0159168e+09 0.087240123 0.026112490 103.89149 20.776311 6648.6391 9.6262292e+08 0.086319873 0.027392112 103.93725 20.628860 6650.9067 9.2174051e+08 0.085997524 0.026462796 103.97763 20.502917 6653.1742 8.8715612e+08 0.085701519 0.027614596 104.01767 20.378349 6655.4417 8.5270367e+08 0.084315227 0.027792738 104.06167 20.241461 6657.7093 8.1867226e+08 0.082695299 0.029723832 104.10744 20.099094 6659.9768 7.7939045e+08 0.081366760 0.031630837 104.15320 19.953040 6662.2443 7.4312328e+08 0.079930143 0.032907186 104.19895 19.805589 6664.5119 7.0398138e+08 0.079014802 0.030333180 104.24086 19.661995 6666.7794 6.7063857e+08 0.078890461 0.027060472 104.28154 19.519627 6669.0469 6.3945712e+08 0.077679733 0.028307491 104.32624 19.377260 6671.3145 6.0919779e+08 0.077815857 0.026869830 104.37200 19.234893 6673.5820 5.9002988e+08 0.077108947 0.028329661 104.41304 19.103542 6675.8495 5.6649806e+08 0.074871166 0.031425555 104.45308 18.974525 6678.1171 5.4419202e+08 0.073644419 0.030858302 104.49349 18.837801 6680.3846 5.2468037e+08 0.073896554 0.029524472 104.53416 18.695434 6682.6522 5.0376713e+08 0.074507034 0.030922816 104.57794 18.553068 6684.9197 4.8425270e+08 0.074340095 0.032700762 104.62370 18.410702 6687.1872 4.6520867e+08 0.072411150 0.034238481 104.66946 18.268334 6689.4548 4.4447955e+08 0.069704435 0.033606663 104.71523 18.125967 6691.7223 4.2607866e+08 0.068577028 0.032830848 104.75754 17.980157 6693.9898 4.0761904e+08 0.067517777 0.031264513 104.79822 17.832707 6696.2574 3.8805518e+08 0.067459665 0.029782719 104.84251 17.688867 6698.5249 3.7213186e+08 0.066516548 0.030938315 104.88827 17.546500 6700.7924 3.6085871e+08 0.064749834 0.031255497 104.93025 17.404134 6703.0600 3.4523307e+08 0.064436916 0.033825325 104.97093 17.261767 6705.3275 3.3022323e+08 0.064666956 0.037250864 105.00765 17.133227 6707.5951 3.1873481e+08 0.064375516 0.040101586 105.04324 17.008660 6709.8626 3.0665788e+08 0.063431494 0.040583895 105.08421 16.874674 6712.1301 2.9765620e+08 0.061265255 0.042071556 105.12997 16.732306 6714.3977 2.8323987e+08 0.059202278 0.047333305 105.17288 16.589939 6716.6652 2.7015015e+08 0.057307079 0.049381133 105.21355 16.447572 6718.9327 2.6232392e+08 0.054818174 0.051265074 105.25423 16.305206 6721.2003 2.5521840e+08 0.055171717 0.050364241 105.29490 16.162840 6723.4678 2.4604879e+08 0.053702686 0.049629846 105.33558 16.020474 6725.7353 2.3247694e+08 0.049584993 0.041116688 105.37625 15.878107 6728.0029 2.1928740e+08 0.048740038 0.039632176 105.42030 15.735740 6730.2704 2.1079145e+08 0.047246466 0.040749670 105.46606 15.593374 6732.5379 2.0454978e+08 0.045646006 0.043839244 105.50829 15.451007 6734.8055 2.0152855e+08 0.045304003 0.049305136 105.54896 15.308639 6737.0730 1.9563650e+08 0.046951281 0.054368172 105.58963 15.166272 6739.3406 1.8755205e+08 0.047375613 0.063243327 105.63031 15.023905 6741.6081 1.7939790e+08 0.045523521 0.067493005 105.67099 14.885413 6743.8756 1.7435759e+08 0.040669976 0.076954401 105.71167 14.748131 6746.1432 1.6726989e+08 0.038755031 0.077322838 105.75234 14.606806 6748.4107 1.5917473e+08 0.035227861 0.069177605 105.79302 14.464439 6750.6782 1.5073946e+08 0.032391627 0.073162246 105.83369 14.322073 6752.9458 1.3983765e+08 0.029554959 0.073040042 105.87437 14.179706 6755.2133 1.3633557e+08 0.027505411 0.074511824 105.91504 14.037360 6757.4808 1.3359686e+08 0.025421542 0.075280824 105.95571 13.895017 6759.7484 1.2910178e+08 0.026222519 0.076000551 105.99638 13.757201 6762.0159 1.2617259e+08 0.029817619 0.078025171 106.03706 13.619919 6764.2835 1.1944611e+08 0.032839714 0.079496865 106.07302 13.477919 6766.5510 1.1266335e+08 0.033643098 0.080960091 106.10861 13.335553 6768.8185 1.0856543e+08 0.029086081 0.083801266 106.14909 13.193187 6771.0861 1.0449242e+08 0.024721862 0.089513872 106.18977 13.050820 6773.3536 1.0449658e+08 0.020564666 0.095013644 106.23044 12.913509 6775.6211 1.0219314e+08 0.016376029 0.10051342 106.27111 12.776087 6777.8887 96697976. 0.012115507 0.10601319 106.31179 12.633719 6780.1562 91701635. 0.0078555653 0.11151296 106.35247 12.491661 6782.4237 84275573. 0.0034954787 0.11701273 106.39315 12.354379 6784.6913 81399830. -0.00071264992 0.12251250 106.43335 12.216619 6786.9588 77575758. -0.0049659740 0.12801227 106.46894 12.074252 6789.2263 76653249. -0.0090838247 0.13351205 106.50604 11.929621 6791.4939 76646421. -0.013146590 0.13901182 106.55350 11.769454 6793.7614 74938403. -0.017294130 0.14451159 106.59572 11.617146 6796.0290 75238541. -0.021318485 0.15001136 106.63131 11.474779 6798.2965 70982089. -0.025626143 0.15551113 106.66931 11.334826 6800.5640 66045491. -0.030044664 0.16101090 106.70999 11.197545 6802.8316 61713072. -0.034530803 0.16651068 106.75066 11.060262 6805.0991 59953052. -0.038895605 0.17201045 106.79134 10.922979 6807.3666 58632550. -0.043344387 0.17751022 106.83247 10.770100 6809.6342 58083019. -0.047897877 0.18300999 106.87400 10.604001 6811.9017 54028110. -0.053289049 0.18850976 106.91480 10.462555 6814.1692 53568211. -0.058754885 0.19400953 106.95547 10.325273 6816.4368 52866837. -0.065363141 0.19950930 106.99163 10.187991 6818.7043 49330489. -0.076254743 0.20500908 107.02722 10.050709 6820.9719 47544998. -0.11756386 0.21050885 107.07375 9.8868577 6823.2394 43683651. -0.093339706 0.21600862 107.11841 9.7275669 6825.5069 43716465. -0.025422457 0.22150839 107.15400 9.5902846