# # 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 = 45.494272 km # Date (UTC) = 2013-12-29T10:18:43.591 # Date (julian) = 2456655.92967119 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6505.8519 4.8117140e+10 0.068087661 0.034047835 -36.308469 47.971534 6508.3957 4.4603625e+10 0.078738963 0.034814913 -36.419390 47.860612 6510.9395 4.1086224e+10 0.089657411 0.035581991 -36.530312 47.749691 6513.4833 3.7564231e+10 0.10082854 0.036349069 -36.649319 47.630682 6516.0271 3.4251536e+10 0.11233047 0.037116148 -36.769099 47.510900 6518.5709 3.1197050e+10 0.12420490 0.037883226 -36.876782 47.399185 6521.1147 2.8655015e+10 0.13661600 0.038650304 -36.983254 47.288278 6523.6585 2.6454333e+10 0.14474506 0.039342333 -37.089724 47.177371 6526.2024 2.4430745e+10 0.14970448 0.039880234 -37.196194 47.066464 6528.7462 2.2641282e+10 0.15459522 0.042034416 -37.300887 46.955556 6531.2900 2.1092341e+10 0.15835783 0.045650734 -37.402923 46.844649 6533.8338 1.9588734e+10 0.16141555 0.047873917 -37.506832 46.731707 6536.3776 1.8003234e+10 0.16223124 0.048128335 -37.621639 46.606916 6538.9214 1.6432984e+10 0.16367331 0.049605350 -37.734617 46.484749 6541.4652 1.4987088e+10 0.16424308 0.051175669 -37.836652 46.378277 6544.0090 1.3760250e+10 0.16410590 0.051651653 -37.938686 46.271805 6546.5528 1.2759387e+10 0.16428543 0.052919401 -38.040720 46.161390 6549.0966 1.1837463e+10 0.16360534 0.054064742 -38.142754 46.050483 6551.6404 1.0909151e+10 0.16289908 0.055460550 -38.249720 45.930772 6554.1842 9.9874949e+09 0.16082521 0.054836246 -38.359521 45.805999 6556.7280 9.1128843e+09 0.15872887 0.053906090 -38.464418 45.689980 6559.2718 8.3514828e+09 0.15602945 0.052356498 -38.566452 45.579073 6561.8157 7.7140545e+09 0.15341025 0.050970745 -38.666818 45.468160 6564.3595 7.1508007e+09 0.15066046 0.048608690 -38.764428 45.357238 6566.9033 6.6361185e+09 0.14886843 0.046671909 -38.861490 45.246318 6569.4471 6.1938737e+09 0.14721733 0.044881522 -38.954653 45.135411 6571.9909 5.7891254e+09 0.14594273 0.044232646 -39.047816 45.024504 6574.5347 5.3751486e+09 0.14386752 0.042598196 -39.155439 44.901545 6577.0785 4.9687135e+09 0.14181777 0.040097076 -39.265238 44.776772 6579.6223 4.5889715e+09 0.13927916 0.036728391 -39.360638 44.667842 6582.1661 4.2628532e+09 0.13712439 0.035248592 -39.453801 44.561372 6584.7099 4.0022530e+09 0.13489766 0.034128793 -39.546971 44.452180 6587.2537 3.7674294e+09 0.13258948 0.033214584 -39.640145 44.341258 6589.7975 3.5304072e+09 0.13009378 0.031463752 -39.735695 44.225383 6592.3413 3.2841071e+09 0.12694600 0.027741985 -39.835513 44.100611 6594.8851 3.0411267e+09 0.12381995 0.025686622 -39.932975 43.980746 6597.4289 2.8200890e+09 0.12035643 0.025587367 -40.026137 43.869839 6599.9728 2.6383829e+09 0.11836875 0.024988236 -40.118856 43.758931 6602.5166 2.4836716e+09 0.11649614 0.027075819 -40.207582 43.648024 6605.0604 2.3410199e+09 0.11419853 0.026715689 -40.296308 43.537117 6607.6042 2.1826679e+09 0.11132407 0.024513972 -40.394413 43.414485 6610.1480 2.0306706e+09 0.10731048 0.024144374 -40.494229 43.289712 6612.6918 1.8848301e+09 0.10510681 0.023803872 -40.584717 43.176602 6615.2356 1.7604542e+09 0.10405282 0.023258780 -40.673455 43.065680 6617.7794 1.6669230e+09 0.10310245 0.023697658 -40.762186 42.954767 6620.3232 1.5740569e+09 0.10249114 0.024871352 -40.850912 42.843860 6622.8670 1.4885307e+09 0.10104091 0.024527221 -40.941676 42.728321 6625.4108 1.3994149e+09 0.099515700 0.025887843 -41.036502 42.603549 6627.9546 1.3109923e+09 0.097660200 0.025685570 -41.127848 42.483357 6630.4984 1.2333070e+09 0.095942024 0.025929530 -41.212138 42.372450 6633.0422 1.1551823e+09 0.094271774 0.026159629 -41.297232 42.260866 6635.5861 1.0793878e+09 0.092444125 0.026487675 -41.392058 42.141084 6638.1299 1.0058900e+09 0.091066994 0.025665985 -41.486120 42.021945 6640.6737 9.3819991e+08 0.091036352 0.025188228 -41.570421 41.911023 6643.2175 8.7957259e+08 0.090383442 0.025225454 -41.654721 41.800100 6645.7613 8.3090261e+08 0.088807716 0.025808316 -41.739013 41.689191 6648.3051 7.8717175e+08 0.087182293 0.027168511 -41.823304 41.578284 6650.8489 7.4288965e+08 0.086048664 0.026449573 -41.910726 41.459548 6653.3927 7.0312022e+08 0.085055210 0.027726161 -42.000562 41.334775 6655.9365 6.6095557e+08 0.082741992 0.027997183 -42.084798 41.217781 6658.4803 6.2412205e+08 0.080476415 0.030912928 -42.164651 41.106874 6661.0241 5.9194914e+08 0.078273488 0.032547235 -42.247567 40.991712 6663.5679 5.5401000e+08 0.076345989 0.032325826 -42.337404 40.866939 6666.1117 5.1759073e+08 0.075862109 0.026930368 -42.424217 40.746366 6668.6555 4.8820356e+08 0.074620833 0.028050883 -42.504081 40.635444 6671.1993 4.6142204e+08 0.074584032 0.026868189 -42.584437 40.523839 6673.7432 4.3700053e+08 0.074037571 0.028570663 -42.674271 40.399066 6676.2870 4.0974747e+08 0.071725750 0.031898670 -42.763447 40.274928 6678.8308 3.8424780e+08 0.070813216 0.030380959 -42.838864 40.164021 6681.3746 3.6468933e+08 0.071977722 0.029944728 -42.914282 40.053114 6683.9184 3.4660492e+08 0.072436210 0.032534483 -43.001113 39.931231 6686.4622 3.2976707e+08 0.071454135 0.034029994 -43.090949 39.806459 6689.0060 3.0761056e+08 0.068273982 0.034010625 -43.176853 39.685619 6691.5498 2.8847571e+08 0.067302046 0.032871545 -43.261698 39.565838 6694.0936 2.7257527e+08 0.066225787 0.031129825 -43.339149 39.453017 6696.6374 2.5643985e+08 0.065996102 0.029940620 -43.414566 39.342110 6699.1812 2.4551439e+08 0.064517806 0.031423213 -43.494988 39.223842 6701.7250 2.3182974e+08 0.062516549 0.032473275 -43.579845 39.099051 6704.2688 2.1754115e+08 0.062776291 0.036309568 -43.662067 38.974270 6706.8126 2.0534026e+08 0.062571743 0.039860752 -43.741921 38.849497 6709.3565 1.9181083e+08 0.061814275 0.040905822 -43.819454 38.731978 6711.9003 1.8109409e+08 0.059514387 0.041716482 -43.894873 38.621071 6714.4441 1.7089569e+08 0.057123437 0.047336793 -43.971484 38.506433 6716.9879 1.5927597e+08 0.054893650 0.049856408 -44.051338 38.381661 6719.5317 1.5283913e+08 0.052738200 0.050864703 -44.131193 38.258213 6722.0755 1.4645481e+08 0.052895983 0.050511881 -44.211047 38.138430 6724.6193 1.3888024e+08 0.049350783 0.044755154 -44.290901 38.017342 6727.1631 1.3184493e+08 0.046892324 0.040743088 -44.370755 37.892569 6729.7069 1.2061230e+08 0.046323838 0.040574255 -44.448320 37.771375 6732.2507 1.1529454e+08 0.044604975 0.043786365 -44.519300 37.660468 6734.7945 1.1099898e+08 0.044475443 0.049305795 -44.590342 37.549464 6737.3383 1.0539171e+08 0.046568857 0.055213321 -44.670182 37.424714 6739.8821 1.0165647e+08 0.046917632 0.063906118 -44.750049 37.299923 6742.4259 94101223. 0.044193049 0.069648641 -44.829903 37.175151 6744.9697 88476587. 0.040054221 0.078543489 -44.909751 37.050385 6747.5136 80297510. 0.035808240 0.067184363 -44.984637 36.930583 6750.0574 75670304. 0.033440011 0.072102083 -45.059501 36.810802 6752.6012 71953859. 0.030711673 0.073438810 -45.134363 36.686063 6755.1450 66462262. 0.028942370 0.074541782 -45.209225 36.561291 6757.6888 61845255. 0.027185722 0.074649780 -45.289029 36.436518 6760.2326 55303280. 0.028313003 0.076504812 -45.368883 36.311744 6762.7764 52494375. 0.033311552 0.076798452 -45.443817 36.186972 6765.3202 49699033. 0.036356860 0.079589648 -45.518682 36.062200 6767.8640 48857662. 0.034397549 0.081008297 -45.593544 35.942329 6770.4078 48813101. 0.029146180 0.087868840 -45.668406 35.822547 6772.9516 47291716. 0.024748611 0.094038691 -45.738386 35.697881 6775.4954 46195777. 0.020388150 0.10020854 -45.808261 35.573108 6778.0392 44194658. 0.016185035 0.10637839 -45.883010 35.448318 6780.5830 43967590. 0.012023300 0.11254824 -45.957883 35.323526 6783.1269 43141367. 0.0081942793 0.11871809 -46.043128 35.186995 6785.6707 41191114. 0.0046764860 0.12488794 -46.125256 35.052760 6788.2145 40037494. 0.0051110945 0.13105779 -46.195138 34.927969 6790.7583 44486149. -0.0039235272 0.13722764 -46.265019 34.803182 6793.3021 49222201. -0.015788600 0.14339749 -46.334891 34.678410