# # 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 = 66.608875 km # Date (UTC) = 2013-11-17T10:15:19.868 # Date (julian) = 2456613.92731328 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6503.7701 5.6286159e+10 0.060234205 0.033420074 100.82596 32.002092 6506.3052 5.1408697e+10 0.070403458 0.034184520 100.89986 31.837242 6508.8403 4.6783395e+10 0.080715040 0.034948967 100.97039 31.672393 6511.3753 4.2411284e+10 0.091587079 0.035713413 101.03861 31.507544 6513.9104 3.8393392e+10 0.10284584 0.036477859 101.11629 31.314283 6516.4455 3.4722106e+10 0.11452417 0.037242306 101.19217 31.126411 6518.9806 3.1372882e+10 0.12664166 0.038006752 101.26039 30.961562 6521.5157 2.8347377e+10 0.13921911 0.038771199 101.32539 30.796713 6524.0507 2.5649804e+10 0.14634607 0.039444985 101.38791 30.631865 6526.5858 2.3319457e+10 0.15199172 0.040282246 101.45503 30.467016 6529.1209 2.1267449e+10 0.15634589 0.042428360 101.52324 30.302168 6531.6560 1.9390697e+10 0.16062200 0.046183458 101.59144 30.137348 6534.1911 1.7689760e+10 0.16309985 0.047998002 101.65801 29.972519 6536.7261 1.6142985e+10 0.16445284 0.048440191 101.72054 29.807670 6539.2612 1.4752122e+10 0.16569520 0.049959819 101.78607 29.642821 6541.7963 1.3520176e+10 0.16591809 0.051068299 101.85429 29.477973 6544.3314 1.2423287e+10 0.16562214 0.051913162 101.91813 29.313124 6546.8665 1.1445255e+10 0.16535406 0.053177475 101.98058 29.148490 6549.4015 1.0580107e+10 0.16442887 0.054375470 102.03529 29.004229 6551.9366 9.8175873e+09 0.16371732 0.055564515 102.09006 28.859889 6554.4717 9.1380945e+09 0.16185549 0.054842278 102.15823 28.695115 6557.0068 8.5169581e+09 0.15999001 0.053861865 102.22507 28.530272 6559.5418 7.9474515e+09 0.15733949 0.052326022 102.28759 28.365452 6562.0769 7.4098852e+09 0.15470706 0.050806706 102.35011 28.200618 6564.6120 6.9015060e+09 0.15212272 0.048494237 102.41264 28.035768 6567.1471 6.4329174e+09 0.15033265 0.046492824 102.47106 27.875026 6569.6822 5.9982093e+09 0.14891229 0.044896823 102.52791 27.715861 6572.2172 5.5898441e+09 0.14761169 0.044105746 102.59023 27.551222 6574.7523 5.2143415e+09 0.14577771 0.042493667 102.65275 27.386374 6577.2874 4.8760108e+09 0.14370792 0.039768935 102.71528 27.221524 6579.8225 4.5715162e+09 0.14138301 0.036618344 102.77781 27.056675 6582.3576 4.2977091e+09 0.13931088 0.035196493 102.84034 26.891827 6584.8926 4.0506078e+09 0.13739101 0.034029257 102.89410 26.741108 6587.4277 3.8274562e+09 0.13537757 0.033253135 102.94384 26.596868 6589.9628 3.6202596e+09 0.13319306 0.031135875 103.00221 26.442553 6592.4979 3.4271415e+09 0.13028010 0.027589936 103.06474 26.283390 6595.0330 3.2504726e+09 0.12732996 0.025626989 103.12206 26.119019 6597.5680 3.0831554e+09 0.12416544 0.025543477 103.17890 25.954170 6600.1031 2.9250646e+09 0.12275609 0.025201859 103.23575 25.789321 6602.6382 2.7779318e+09 0.12155162 0.026972025 103.29175 25.634634 6605.1733 2.6433362e+09 0.12030257 0.026810405 103.34647 25.495347 6607.7084 2.5155419e+09 0.11821346 0.024308266 103.40201 25.346172 6610.2434 2.3937671e+09 0.11478063 0.024235572 103.45885 25.181352 6612.7785 2.2792018e+09 0.11293097 0.023739079 103.51569 25.020082 6615.3136 2.1701415e+09 0.11179202 0.023261180 103.57253 24.860917 6617.8487 2.0651943e+09 0.11106728 0.023720623 103.62938 24.696815 6620.3837 1.9670680e+09 0.11059526 0.024890860 103.68544 24.534762 6622.9188 1.8758944e+09 0.10930270 0.024513431 103.73519 24.395476 6625.4539 1.7903921e+09 0.10789707 0.025939251 103.78564 24.253655 6627.9890 1.7081136e+09 0.10613982 0.025698840 103.84248 24.088806 6630.5241 1.6303381e+09 0.10452835 0.025929593 103.89932 23.925899 6633.0591 1.5553741e+09 0.10294984 0.026162579 103.95616 23.766763 6635.5942 1.4841008e+09 0.10117282 0.026488900 104.00970 23.604310 6638.1293 1.4160996e+09 0.099811683 0.025666009 104.06086 23.439461 6640.6644 1.3514927e+09 0.099787782 0.025189364 104.11085 23.295605 6643.1995 1.2902105e+09 0.099185925 0.025222735 104.16060 23.156318 6645.7345 1.2309016e+09 0.097718436 0.025795789 104.21610 23.000910 6648.2696 1.1756922e+09 0.096210259 0.027144769 104.27265 22.841451 6650.8047 1.1239521e+09 0.095115065 0.026439455 104.32381 22.676602 6653.3398 1.0750424e+09 0.094203197 0.027699140 104.37664 22.513417 6655.8749 1.0285912e+09 0.091982819 0.027971709 104.43348 22.354254 6658.4099 9.8520018e+08 0.089856238 0.030788111 104.48388 22.205705 6660.9450 9.4486854e+08 0.087894556 0.032484972 104.52865 22.066439 6663.4801 9.0699139e+08 0.086183880 0.032350166 104.57676 21.913794 6666.0152 8.6986271e+08 0.085766946 0.026911552 104.62791 21.748944 6668.5503 8.3469662e+08 0.084609416 0.027957710 104.68341 21.588437 6671.0853 8.0046846e+08 0.084401160 0.026866564 104.74022 21.429274 6673.6204 7.6857562e+08 0.083755952 0.028387090 104.79139 21.270109 6676.1555 7.3779930e+08 0.081298254 0.031813938 104.84099 21.115827 6678.6906 7.0887596e+08 0.080162229 0.030474730 104.88575 20.976562 6681.2257 6.8136368e+08 0.081071615 0.029830474 104.93201 20.832624 6683.7607 6.5541410e+08 0.081446377 0.032303438 104.98317 20.673460 6686.2958 6.2972924e+08 0.080513559 0.033933190 105.03433 20.514295 6688.8309 6.0541987e+08 0.077182511 0.033976988 105.08549 20.355129 6691.3660 5.8089488e+08 0.075840532 0.032914919 105.13665 20.195965 6693.9010 5.5823375e+08 0.074554462 0.031294974 105.18782 20.036802 6696.4361 5.3612594e+08 0.074147086 0.029856987 105.23285 19.896685 6698.9712 5.1594380e+08 0.072609094 0.031550908 105.27761 19.757419 6701.5063 4.9680919e+08 0.070409331 0.032152309 105.32844 19.599315 6704.0414 4.7905747e+08 0.070271906 0.036197865 105.37960 19.440151 6706.5764 4.6211691e+08 0.069949667 0.039449658 105.43075 19.280987 6709.1115 4.4539625e+08 0.069045725 0.041061610 105.48191 19.121823 6711.6466 4.2736764e+08 0.066696691 0.041427888 105.53308 18.962657 6714.1817 4.1067252e+08 0.064067392 0.047317067 105.58424 18.803492 6716.7168 3.9428674e+08 0.061803674 0.049457081 105.63539 18.644328 6719.2518 3.7965072e+08 0.059269744 0.051130573 105.68138 18.485164 6721.7869 3.6519864e+08 0.059535660 0.050541001 105.72675 18.329001 6724.3220 3.5192131e+08 0.056619709 0.047237775 105.77151 18.189735 6726.8571 3.3915352e+08 0.053209490 0.040959097 105.81638 18.047679 6729.3922 3.2678505e+08 0.052562358 0.040784045 105.86185 17.888515 6731.9272 3.1548730e+08 0.050517340 0.043595394 105.90949 17.731517 6734.4623 3.0470571e+08 0.049873946 0.049325783 105.96066 17.578036 6736.9974 2.9356701e+08 0.051869662 0.054125712 106.01182 17.421020 6739.5325 2.8335795e+08 0.052384213 0.063478197 106.06297 17.261856 6742.0676 2.7323014e+08 0.050054677 0.068775354 106.10923 17.102691 6744.6026 2.6320035e+08 0.045242755 0.078259532 106.15471 16.943527 6747.1377 2.5300883e+08 0.040384123 0.067313753 106.20018 16.784363 6749.6728 2.4326051e+08 0.038804341 0.072093723 106.24762 16.627157 6752.2079 2.3411033e+08 0.035172330 0.073893933 106.29877 16.473677 6754.7429 2.2474328e+08 0.033503965 0.075018717 106.34660 16.316886 6757.2780 2.1545275e+08 0.030797467 0.075896316 106.39207 16.157748 6759.8131 2.0604609e+08 0.031811519 0.076016171 106.43755 16.003281 6762.3482 1.9753313e+08 0.035966367 0.077489192 106.48340 15.849424 6764.8833 1.8957757e+08 0.039123666 0.079525600 106.53456 15.690260 6767.4183 1.8237123e+08 0.038233142 0.081507328 106.58397 15.531096 6769.9534 1.7528750e+08 0.032760919 0.086766733 106.62945 15.371932 6772.4885 1.6895235e+08 0.028134795 0.092915415 106.67493 15.215884 6775.0236 1.6317874e+08 0.023526215 0.099064097 106.72040 15.062404 6777.5587 1.5671052e+08 0.018949752 0.10521278 106.76588 14.904439 6780.0937 1.5115472e+08 0.014386523 0.11136146 106.81135 14.745442 6782.6288 1.4624117e+08 0.0098358448 0.11751014 106.85682 14.591963 6785.1639 1.4082388e+08 0.0053030938 0.12365882 106.90230 14.438483 6787.6990 1.3521289e+08 0.00077926781 0.12980751 106.94778 14.285003 6790.2341 1.3002503e+08 -0.0037482046 0.13595619 106.99325 14.128617 6792.7691 1.2539185e+08 -0.0082790131 0.14210487 107.03873 13.969453 6795.3042 1.2056708e+08 -0.012807728 0.14825355 107.08420 13.814564 6797.8393 1.1705138e+08 -0.017343793 0.15440223 107.12968 13.661084 6800.3744 1.1403679e+08 -0.021880303 0.16055091 107.17515 13.507605 6802.9095 1.0947920e+08 -0.026407894 0.16669960 107.22063 13.352796 6805.4445 1.0579995e+08 -0.030938049 0.17284828 107.26611 13.193631 6807.9796 1.0245391e+08 -0.035466270 0.17899696 107.31518 13.025022 6810.5147 99227025. -0.039993239 0.18514564 107.36824 12.845957 6813.0498 95294311. -0.044517384 0.19129432 107.41396 12.691626 6815.5849 91495361. -0.049039123 0.19744300 107.45944 12.538146 6818.1199 88120778. -0.053559240 0.20359169 107.50491 12.384667 6820.6550 84503883. -0.058077342 0.20974037 107.55081 12.216743 6823.1901 81909212. -0.062586761 0.21588905 107.59724 12.031046 6825.7252 79134300. -0.067087188 0.22203773 107.64277 11.875650 6828.2602 76441963. -0.071579208 0.22818641 107.68825 11.722170 6830.7953 73126544. -0.076063376 0.23433510 107.73372 11.568689 6833.3304 70113438. -0.080537434 0.24048378 107.78240 11.404408 6835.8655 67032961. -0.085003938 0.24663246 107.83545 11.225343 6838.4006 63298679. -0.089473430 0.25278114 107.87638 11.069671 6840.9356 59778471. -0.093942646 0.25892982 107.91823 10.912228 6843.4707 56803709. -0.098410868 0.26507850 107.97127 10.733199 6846.0058 53763324. -0.10289381 0.27122719 108.01574 10.570700 6848.5409 51728851. -0.10737340 0.27737587 108.05553 10.417220 6851.0760 49833325. -0.11187130 0.28352455 108.10710 10.241025 6853.6110 49170235. -0.11636226 0.28967323 108.15512 10.071681 6856.1461 47485509. -0.12091791 0.29582191 108.19491 9.9182012 6858.6812 46370772. -0.12550449 0.30197059 108.24294 9.7488387 6861.2163 44597502. -0.13018891 0.30811928 108.29450 9.5733062 6863.7514 41689673. -0.13505411 0.31426796 108.33429 9.4255108 6866.2864 39408769. -0.14008796 0.32041664 108.37877 9.2666535 6868.8215 37209868. -0.14544252 0.32656532 108.43183 9.0875891 6871.3566 35726966. -0.15128382 0.33271400 108.47927 8.9085241 6873.8917 36034537. -0.15808138 0.33886268 108.52538 8.7381090 6876.4268 37210233. -0.17307298 0.34501137 108.57085 8.5846285 6878.9618 39729442. -0.17074639 0.35116005 108.61687 8.4163574 6881.4969 42071288. -0.16775294 0.35730873 108.66329 8.2377949 6884.0320 43788456. -0.16552446 0.36345741 108.70971 8.0653620 6886.5671 43825726. -0.16477365 0.36960609 108.75987 7.8891949 6889.1021 42350068. -0.16442415 0.37575478 108.81256 7.7101289