# # 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 = 44.611273 km # Date (UTC) = 2014-12-04T08:48:46.552 # Date (julian) = 2456995.86720546 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6491.0598 7.7271410e+10 0.023217613 0.029587308 -9.5047073 54.946576 6492.7846 6.9631692e+10 0.028312987 0.030107436 -9.6156888 54.866034 6494.5095 6.2665226e+10 0.033139903 0.030627565 -9.7149557 54.796848 6496.2344 5.7491365e+10 0.037619177 0.031147693 -9.8142225 54.727662 6497.9592 5.3246081e+10 0.041873740 0.031667821 -9.9134893 54.658476 6499.6841 4.9127366e+10 0.046033634 0.032187950 -10.010551 54.589290 6501.4090 4.5436718e+10 0.050286162 0.032708078 -10.106810 54.520105 6503.1338 4.1962756e+10 0.054762273 0.033228206 -10.203069 54.450919 6504.8587 3.8799928e+10 0.059636989 0.033748335 -10.304245 54.378199 6506.5836 3.5512411e+10 0.064856453 0.034268463 -10.412538 54.300364 6508.3084 3.2448077e+10 0.070651193 0.034788592 -10.520831 54.222528 6510.0333 2.9727118e+10 0.077239662 0.035308720 -10.623665 54.147252 6511.7582 2.7500653e+10 0.084918048 0.035828848 -10.719923 54.075057 6513.4830 2.5829661e+10 0.093968448 0.036348977 -10.816182 54.002863 6515.2079 2.4119304e+10 0.10392410 0.036869105 -10.913560 53.929938 6516.9327 2.2481761e+10 0.11484821 0.037389233 -11.018485 53.852090 6518.6576 2.0838537e+10 0.12657288 0.037909362 -11.123410 53.774243 6520.3825 1.9312514e+10 0.13920618 0.038429490 -11.225769 53.697910 6522.1073 1.8008904e+10 0.15162126 0.038945359 -11.316012 53.628724 6523.8322 1.6961184e+10 0.15840528 0.039385372 -11.406254 53.559538 6525.5571 1.6130011e+10 0.16359769 0.039718638 -11.496497 53.490352 6527.2819 1.5313253e+10 0.16737632 0.040921156 -11.599211 53.410934 6529.0068 1.4411196e+10 0.16861470 0.042246610 -11.704120 53.329715 6530.7317 1.3460694e+10 0.17025611 0.044853009 -11.809028 53.248496 6532.4565 1.2580843e+10 0.17227109 0.047065571 -11.900805 53.175357 6534.1814 1.1836596e+10 0.17211882 0.047995299 -11.991047 53.103163 6535.9063 1.1204397e+10 0.17096194 0.047831167 -12.081290 53.030968 6537.6311 1.0608484e+10 0.17175779 0.048982771 -12.169815 52.960492 6539.3560 1.0070937e+10 0.17117333 0.050074538 -12.257049 52.891306 6541.0808 9.5956875e+09 0.17002054 0.051300310 -12.344284 52.822120 6542.8057 9.1281648e+09 0.16918117 0.051308132 -12.434212 52.749963 6544.5306 8.6477320e+09 0.16820444 0.052074763 -12.532367 52.668730 6546.2554 8.1283984e+09 0.16672989 0.052674714 -12.630522 52.587498 6547.9803 7.6311181e+09 0.16630423 0.053660157 -12.725487 52.509785 6549.7052 7.2280842e+09 0.16558688 0.054684906 -12.812721 52.440599 6551.4300 6.8961013e+09 0.16447461 0.055386700 -12.899956 52.371413 6553.1549 6.6003790e+09 0.16363923 0.055257200 -12.987190 52.302227 6554.8798 6.3086819e+09 0.16260779 0.054850842 -13.081705 52.221396 6556.6046 5.9752206e+09 0.16090042 0.053924234 -13.176461 52.140177 6558.3295 5.6414500e+09 0.15928888 0.052958534 -13.271072 52.059083 6560.0544 5.3408761e+09 0.15764348 0.052225297 -13.355309 51.986879 6561.7792 5.0910923e+09 0.15537283 0.050988696 -13.439535 51.914685 6563.5041 4.8958704e+09 0.15324109 0.049345252 -13.523762 51.842490 6565.2290 4.7029841e+09 0.15186427 0.048058417 -13.612907 51.764083 6566.9538 4.5003453e+09 0.15053198 0.046643312 -13.704279 51.682864 6568.6787 4.2819551e+09 0.14923343 0.045147791 -13.795651 51.601645 6570.4035 4.0841799e+09 0.14858272 0.044750346 -13.881790 51.527039 6572.1284 3.9116536e+09 0.14758134 0.044156617 -13.966028 51.454834 6573.8533 3.7597706e+09 0.14586962 0.042972747 -14.050265 51.382630 6575.5781 3.6204774e+09 0.14458445 0.041794650 -14.132034 51.311662 6577.3030 3.4799741e+09 0.14304493 0.039744423 -14.210244 51.242477 6579.0279 3.3616095e+09 0.14081220 0.037055176 -14.288455 51.173291 6580.7527 3.2527353e+09 0.13914882 0.035825117 -14.367786 51.103079 6582.4776 3.1346188e+09 0.13776668 0.035163826 -14.459159 51.021859 6584.2025 2.9960199e+09 0.13607077 0.034405221 -14.550531 50.940639 6585.9273 2.8408049e+09 0.13454519 0.033229395 -14.640188 50.860595 6587.6522 2.7080628e+09 0.13345079 0.033302871 -14.718399 50.788401 6589.3771 2.6056854e+09 0.13159046 0.032297927 -14.796609 50.716207 6591.1019 2.5233459e+09 0.12921933 0.029086901 -14.874820 50.644014 6592.8268 2.4383972e+09 0.12725113 0.027270463 -14.960909 50.564546 6594.5517 2.3338001e+09 0.12501687 0.025869693 -15.048897 50.483326 6596.2765 2.2244278e+09 0.12240511 0.025726017 -15.136885 50.402106 6598.0014 2.1205706e+09 0.12063973 0.025406506 -15.214001 50.328558 6599.7262 2.0466323e+09 0.11952811 0.024973410 -15.289213 50.256355 6601.4511 1.9865846e+09 0.11904839 0.027258137 -15.364426 50.184152 6603.1760 1.9267224e+09 0.11810959 0.026559096 -15.444587 50.107197 6604.9008 1.8534852e+09 0.11765211 0.026606165 -15.529191 50.025977 6606.6257 1.7733333e+09 0.11696948 0.026379592 -15.613795 49.944757 6608.3506 1.7070889e+09 0.11490654 0.023723102 -15.693020 49.868700 6610.0754 1.6428014e+09 0.11267904 0.024075054 -15.768223 49.796505 6611.8003 1.5959628e+09 0.11056323 0.024448102 -15.843425 49.724310 6613.5252 1.5446396e+09 0.10975268 0.023766274 -15.920956 49.649880 6615.2500 1.4909633e+09 0.10863836 0.023259224 -16.005560 49.568661 6616.9749 1.4307252e+09 0.10752483 0.023435308 -16.090163 49.487443 6618.6998 1.3620977e+09 0.10702521 0.024299196 -16.171134 49.408866 6620.4246 1.3049526e+09 0.10642285 0.024904032 -16.243328 49.336671 6622.1495 1.2598958e+09 0.10518868 0.024718204 -16.315522 49.264476 6623.8744 1.2239110e+09 0.10331233 0.024815759 -16.387717 49.192282 6625.5992 1.1878286e+09 0.10218011 0.026112649 -16.468651 49.111348 6627.3241 1.1383553e+09 0.10027741 0.025441998 -16.549870 49.030129 6629.0489 1.0872904e+09 0.099167486 0.026100256 -16.630958 48.948998 6630.7738 1.0411502e+09 0.097585403 0.025930209 -16.703173 48.873779 6632.4987 1.0033420e+09 0.096100616 0.026092140 -16.775377 48.798567 6634.2235 9.7481313e+08 0.094397523 0.026343149 -16.847581 48.723355 6635.9484 9.3940589e+08 0.092818796 0.026542015 -16.923668 48.644000 6637.6733 9.0625251e+08 0.091734382 0.025831665 -17.001503 48.562780 6639.3981 8.6846930e+08 0.091110046 0.025485773 -17.079338 48.481560 6641.1230 8.3356186e+08 0.091629984 0.025148718 -17.150820 48.406970 6642.8479 8.0470050e+08 0.091343088 0.025186393 -17.220006 48.334776 6644.5727 7.8009138e+08 0.090429535 0.025405506 -17.289193 48.262583 6646.2976 7.5941717e+08 0.089433013 0.026074190 -17.361926 48.186686 6648.0225 7.3480577e+08 0.088621377 0.026979317 -17.439762 48.105466 6649.7473 7.0543354e+08 0.087895010 0.026603543 -17.517597 48.024246 6651.4722 6.7714139e+08 0.087422331 0.026846027 -17.591495 47.947135 6653.1971 6.5332961e+08 0.087001921 0.027626268 -17.660681 47.874942 6654.9219 6.3133810e+08 0.085888628 0.027643481 -17.729868 47.802749 6656.6468 6.1058617e+08 0.084135709 0.028591092 -17.799743 47.729374 6658.3716 5.9120883e+08 0.082812907 0.030720197 -17.874194 47.648154 6660.0965 5.7350707e+08 0.081544645 0.031713719 -17.948645 47.566934 6661.8214 5.5463489e+08 0.080100016 0.032953293 -18.023098 47.485116 6663.5462 5.3521636e+08 0.078878134 0.032331837 -18.097561 47.400499 6665.2711 5.1108500e+08 0.078570359 0.028102919 -18.172023 47.315882 6666.9960 4.8703209e+08 0.078066417 0.027102672 -18.244652 47.234016 6668.7208 4.6705147e+08 0.076872854 0.028108659 -18.310830 47.161821 6670.4457 4.5147795e+08 0.076595590 0.027122148 -18.377008 47.089627 6672.1706 4.3645105e+08 0.076064709 0.026978460 -18.443186 47.017432 6673.8954 4.2574526e+08 0.075081534 0.028798392 -18.513750 46.937143 6675.6203 4.1342761e+08 0.073132594 0.030986441 -18.584816 46.855924 6677.3452 4.0041753e+08 0.071653419 0.031867544 -18.655883 46.774705 6679.0700 3.8890676e+08 0.071024327 0.030209910 -18.726951 46.693485 6680.7949 3.6946872e+08 0.071936728 0.029613065 -18.798018 46.612265 6682.5197 3.5264878e+08 0.072420642 0.030821651 -18.869078 46.531051 6684.2446 3.3558455e+08 0.072407244 0.032666505 -18.932357 46.455765 6685.9695 3.1946907e+08 0.071895378 0.033728846 -18.995527 46.380562 6687.6943 3.0945844e+08 0.069819408 0.033955658 -19.058697 46.305360 6689.4192 3.0243619e+08 0.067619951 0.033638670 -19.127101 46.226170 6691.1441 2.9597984e+08 0.066679279 0.032967271 -19.198168 46.144951 6692.8689 2.8736984e+08 0.065876145 0.031756285 -19.269236 46.063732 6694.5938 2.7857536e+08 0.065067499 0.030428783 -19.340310 45.982504 6696.3187 2.6355692e+08 0.064727209 0.029808185 -19.411388 45.901272 6698.0435 2.4985332e+08 0.063941809 0.030277568 -19.482465 45.820039 6699.7684 2.3710614e+08 0.062530808 0.030881423 -19.550986 45.738817 6701.4933 2.2352455e+08 0.060938310 0.032133198 -19.618669 45.657598 6703.2181 2.2095664e+08 0.060791875 0.034221052 -19.686352 45.576379 6704.9430 2.1807630e+08 0.060742261 0.036640611 -19.748030 45.499964 6706.6679 2.1268572e+08 0.060293198 0.039608752 -19.808192 45.424762 6708.3927 2.0603428e+08 0.059823888 0.040471235 -19.868353 45.349560 6710.1176 1.9005305e+08 0.058737462 0.040519510 -19.932080 45.271505 6711.8424 1.8271442e+08 0.056899292 0.041650707 -19.999763 45.190285 6713.5673 1.7712004e+08 0.055201846 0.045738471 -20.067447 45.109064 6715.2922 1.7326114e+08 0.053756933 0.047677419 -20.135130 45.027844 6717.0170 1.7356871e+08 0.052106673 0.049873214 -20.202813 44.946625 6718.7419 1.6342957e+08 0.050310322 0.050967877 -20.270495 44.865407 6720.4668 1.5443291e+08 0.050412536 0.050365683 -20.336269 44.782278 6722.1916 1.4427821e+08 0.050313829 0.050368293 -20.400568 44.697675 6723.9165 1.3713841e+08 0.048716104 0.049880092 -20.464867 44.613071 6725.6414 1.3415063e+08 0.045261450 0.041175390 -20.529166 44.530528 6727.3662 1.2904294e+08 0.044358251 0.040472464 -20.593465 44.449308 6729.0911 1.2376723e+08 0.044116808 0.040984711 -20.657764 44.368088 6730.8160 1.1530053e+08 0.042748189 0.041497682 -20.722064 44.286867 6732.5408 1.1042971e+08 0.041737048 0.043839773 -20.786363 44.205647 6734.2657 1.0675248e+08 0.041192970 0.049337614 -20.850662 44.124426 6735.9906 1.0243553e+08 0.042680297 0.050344977 -20.914968 44.040831 6737.7154 1.0070191e+08 0.043711477 0.056414545 -20.979276 43.956215 6739.4403 94821955. 0.043800253 0.063365373 -21.043584 43.871598 6741.1651 91699618. 0.042464056 0.066229698 -21.107885 43.789512 6742.8900 87231194. 0.039208168 0.070779432 -21.172184 43.708293 6744.6149 81335892. 0.035388339 0.078269003 -21.236483 43.627074 6746.3397 73795989. 0.031012036 0.075037416 -21.298109 43.545855 6748.0646 65591804. 0.014700843 0.067356789 -21.359024 43.464634 6749.7895 62404626. 0.022461007 0.072061775 -21.419939 43.383414 6751.5143 64758149. 0.043425891 0.073929134 -21.480854 43.299369