# # 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 = 56.673335 km # Date (UTC) = 2013-12-28T09:30:27.566 # Date (julian) = 2456654.89615238 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6489.2499 1.1160743e+11 0.038772743 0.029041555 -23.599744 48.698707 6492.1659 9.0198565e+10 0.049890358 0.029920872 -23.731965 48.575108 6495.0820 7.6929080e+10 0.060032104 0.030800190 -23.864186 48.453058 6497.9980 6.7376693e+10 0.069420887 0.031679507 -23.992710 48.327287 6500.9140 5.9943548e+10 0.078183149 0.032558825 -24.119862 48.200135 6503.8300 5.3453995e+10 0.086485695 0.033438142 -24.259129 48.060869 6506.7460 4.7821441e+10 0.094292051 0.034317460 -24.401919 47.918156 6509.6621 4.3088906e+10 0.10151336 0.035196777 -24.529054 47.796108 6512.5781 3.9366006e+10 0.10812005 0.036076095 -24.655941 47.673811 6515.4941 3.6084641e+10 0.11434636 0.036955412 -24.777991 47.546676 6518.4101 3.2916250e+10 0.12058919 0.037834730 -24.900040 47.419541 6521.3261 3.0077622e+10 0.12766878 0.038714047 -25.022090 47.292406 6524.2421 2.7404830e+10 0.13019933 0.039512985 -25.145910 47.164090 6527.1582 2.4840900e+10 0.13251858 0.040831301 -25.283239 47.026760 6530.0742 2.2360131e+10 0.13574212 0.043932554 -25.413070 46.893185 6532.9902 2.0041979e+10 0.14061154 0.047511403 -25.530034 46.766049 6535.9062 1.8092794e+10 0.14590073 0.047831182 -25.646998 46.638914 6538.8222 1.6434021e+10 0.15500236 0.049557068 -25.763962 46.511779 6541.7383 1.4997800e+10 0.16181732 0.051087119 -25.880926 46.384644 6544.6543 1.3738125e+10 0.16532977 0.052175108 -25.997890 46.257509 6547.5703 1.2520392e+10 0.16520483 0.053504237 -26.121713 46.125603 6550.4863 1.1316808e+10 0.16299031 0.055107128 -26.253300 45.988296 6553.4023 1.0168008e+10 0.16071447 0.055132821 -26.370687 45.858312 6556.3183 9.1655233e+09 0.15818687 0.053966323 -26.482580 45.731160 6559.2344 8.3650466e+09 0.15572331 0.052360728 -26.594462 45.604021 6562.1504 7.6937852e+09 0.15315404 0.050736807 -26.706341 45.476886 6565.0664 7.1186427e+09 0.15068769 0.048242997 -26.818220 45.349751 6567.9824 6.5847539e+09 0.14872070 0.045786526 -26.930100 45.222615 6570.8984 6.0332112e+09 0.14720304 0.044545346 -27.053477 45.082413 6573.8145 5.4806079e+09 0.14543035 0.043003900 -27.177928 44.940563 6576.7305 4.9720117e+09 0.14355870 0.040530602 -27.284736 44.813410 6579.6465 4.5539856e+09 0.14093117 0.036715092 -27.391541 44.686810 6582.5625 4.2135497e+09 0.13852071 0.035140720 -27.498335 44.564759 6585.4785 3.9151648e+09 0.13587382 0.033588200 -27.605129 44.441988 6588.3945 3.6501770e+09 0.13328124 0.033248171 -27.711922 44.314853 6591.3106 3.3972552e+09 0.12958885 0.028851474 -27.821055 44.184932 6594.2266 3.1493827e+09 0.12582970 0.026048141 -27.941200 44.041903 6597.1426 2.9031951e+09 0.12157083 0.025677728 -28.053466 43.905666 6600.0586 2.6751290e+09 0.11892859 0.025110385 -28.155174 43.778531 6602.9746 2.4904877e+09 0.11610775 0.026684917 -28.259232 43.651388 6605.8907 2.3368292e+09 0.11341268 0.027412232 -28.366041 43.524236 6608.8067 2.1868933e+09 0.10900751 0.023711043 -28.476617 43.389228 6611.7227 2.0322909e+09 0.10530967 0.024497592 -28.591041 43.246199 6614.6387 1.8725909e+09 0.10444524 0.023500446 -28.695967 43.118840 6617.5547 1.7268133e+09 0.10340318 0.023623167 -28.797674 42.996791 6620.4707 1.6088306e+09 0.10282966 0.024918895 -28.895414 42.870773 6623.3868 1.5044857e+09 0.10107967 0.024635116 -28.992037 42.743638 6626.3028 1.4006451e+09 0.099376329 0.026205131 -29.103150 42.603563 6629.2188 1.3000971e+09 0.097625080 0.026069545 -29.216395 42.461585 6632.1348 1.2076285e+09 0.095629694 0.026048511 -29.313031 42.334433 6635.0508 1.1258538e+09 0.093881405 0.026407411 -29.409666 42.207283 6637.9669 1.0586344e+09 0.092049565 0.025687876 -29.506288 42.080148 6640.8829 9.9165710e+08 0.091901687 0.025162631 -29.603761 41.950889 6643.7989 9.2740972e+08 0.090797209 0.025313241 -29.706743 41.807859 6646.7149 8.6596346e+08 0.089169475 0.026290207 -29.807271 41.670960 6649.6309 8.0894526e+08 0.087594015 0.026763986 -29.903893 41.543825 6652.5469 7.5945394e+08 0.086586976 0.027401008 -30.003182 41.412424 6655.4630 7.1281583e+08 0.084460918 0.027801513 -30.106163 41.275115 6658.3790 6.7341513e+08 0.081695373 0.030733210 -30.204883 41.144626 6661.2950 6.3228911e+08 0.079202863 0.032685199 -30.301519 41.017474 6664.2110 5.9274054e+08 0.076976532 0.031433984 -30.402631 40.879124 6667.1270 5.5371554e+08 0.076175575 0.027150120 -30.505612 40.736094 6670.0431 5.1970304e+08 0.074723908 0.027308687 -30.597637 40.608282 6672.9591 4.9379053e+08 0.073917307 0.027435494 -30.689175 40.481147 6675.8751 4.6485022e+08 0.071291732 0.031474475 -30.786383 40.338261 6678.7911 4.3885510e+08 0.069990156 0.030407487 -30.882252 40.199095 6681.7071 4.1063619e+08 0.071385323 0.030199854 -30.973789 40.071960 6684.6231 3.8684189e+08 0.071829980 0.032685714 -31.066909 39.942011 6687.5392 3.6615271e+08 0.069777576 0.034042204 -31.164169 39.804703 6690.4552 3.4294196e+08 0.067364802 0.033063700 -31.255719 39.672766 6693.3712 3.2467117e+08 0.066208656 0.031476745 -31.342183 39.545614 6696.2872 3.0446373e+08 0.065768805 0.029795118 -31.434721 39.409529 6699.2032 2.8665139e+08 0.064277040 0.031402905 -31.531980 39.266500 6702.1193 2.6764864e+08 0.062259592 0.032971954 -31.629240 39.123471 6705.0353 2.5054280e+08 0.062811149 0.036731311 -31.725778 38.981504 6707.9513 2.3642043e+08 0.062420896 0.040050555 -31.812230 38.854368 6710.8673 2.2393884e+08 0.060509327 0.040666260 -31.899193 38.726211 6713.7833 2.1416091e+08 0.057577290 0.046519742 -31.990732 38.588902 6716.6993 1.9838841e+08 0.055120467 0.049431428 -32.082270 38.449576 6719.6154 1.8676779e+08 0.052737537 0.050785201 -32.173809 38.306547 6722.5314 1.7273985e+08 0.052556583 0.049948281 -32.262279 38.173118 6725.4474 1.6227085e+08 0.047734954 0.041296552 -32.348744 38.045966 6728.3634 1.5899522e+08 0.046410488 0.040143179 -32.438448 37.908677 6731.2794 1.4971488e+08 0.044253706 0.042306150 -32.529986 37.765648 6734.1955 1.4477161e+08 0.042807941 0.049341840 -32.621526 37.627712 6737.1115 1.3583953e+08 0.045100727 0.054490655 -32.712248 37.489586 6740.0275 1.2712947e+08 0.045528382 0.064097320 -32.798064 37.346557 6742.9435 1.2266009e+08 0.041779231 0.070909782 -32.886140 37.203528 6745.8595 1.1520935e+08 0.038505934 0.078928223 -32.977678 37.060498 6748.7755 1.0884800e+08 0.034543406 0.071097054 -33.065516 36.917469 6751.6916 1.0010090e+08 0.030242948 0.074004067 -33.151335 36.774440 6754.6076 90726996. 0.028176501 0.075236409 -33.242296 36.636555 6757.5236 84726131. 0.025751582 0.075151080 -33.332971 36.498382 6760.4396 79126326. 0.026902434 0.076899596 -33.418789 36.355353 6763.3556 75333832. 0.032739890 0.077520851 -33.504612 36.212315 6766.2717 70220693. 0.035220033 0.080328226 -33.590441 36.069265 6769.1877 65507953. 0.029983556 0.084909441 -33.676263 35.929978 6772.1037 63099905. 0.024880417 0.091982066 -33.762081 35.792669 6775.0197 59718145. 0.019798530 0.099054692 -33.847898 35.650168 6777.9357 60412851. 0.014669930 0.10612732 -33.932800 35.507139 6780.8517 60739609. 0.0095469982 0.11319994 -34.012899 35.364109 6783.7678 61073499. 0.0044295387 0.12027257 -34.095353 35.223436 6786.6838 60291159. -0.00067369396 0.12734520 -34.181169 35.086130 6789.5998 56754441. -0.0057557915 0.13441782 -34.263187 34.945023 6792.5158 54667376. -0.010847411 0.14149045 -34.343283 34.801994 6795.4318 50920758. -0.015925051 0.14856307 -34.439855 34.640242 6798.3478 47675880. -0.021005223 0.15563570 -34.530979 34.486893 6801.2639 46260814. -0.026080138 0.16270833 -34.611075 34.349584 6804.1799 48278864. -0.031144287 0.16978095 -34.691172 34.208620 6807.0959 51635269. -0.036186906 0.17685358 -34.771268 34.065590 6810.0119 49017810. -0.041209349 0.18392620 -34.861561 33.910179 6812.9279 44937635. -0.046244799 0.19099883 -34.948963 33.758279 6815.8440 40604092. -0.051302755 0.19807146 -35.029062 33.615250 6818.7600 40802270. -0.056391085 0.20514408 -35.112168 33.463690 6821.6760 43108901. -0.061501372 0.21221671 -35.196756 33.307933 6824.5920 41988914. -0.066667472 0.21928933 -35.276866 33.164883 6827.5080 41423962. -0.071901657 0.22636196 -35.358623 33.017160 6830.4240 38750588. -0.077300325 0.23343459 -35.443624 32.860233 6833.3401 35202799. -0.083007845 0.24050721 -35.524665 32.714527 6836.2561 32937117. -0.089565837 0.24757984 -35.605053 32.570671 6839.1721 30756187. -0.10283494 0.25465246 -35.690055 32.413743 6842.0881 31948469. -0.10151593 0.26172509 -35.775058 32.253350 6845.0041 35568360. -0.093787613 0.26879771 -35.860028 32.089965