# # 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 = 50.854718 km # Date (UTC) = 2014-11-21T10:03:25.033 # Date (julian) = 2456982.91903973 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6502.9108 5.3538949e+10 0.054250188 0.033160950 -23.066499 61.526156 6505.1022 4.9669304e+10 0.063241445 0.033821770 -23.279979 61.421788 6507.2936 4.5935240e+10 0.072508299 0.034482590 -23.501103 61.313682 6509.4851 4.2248698e+10 0.082023000 0.035143410 -23.715462 61.205577 6511.6765 3.8841289e+10 0.091851456 0.035804229 -23.926758 61.097474 6513.8679 3.5840114e+10 0.10207049 0.036465049 -24.120795 60.998199 6516.0594 3.3488755e+10 0.11286917 0.037125869 -24.305676 60.903608 6518.2508 3.1492245e+10 0.12416656 0.037786689 -24.497600 60.804591 6520.4422 2.9415134e+10 0.13572686 0.038447509 -24.703982 60.696485 6522.6337 2.7399642e+10 0.14587062 0.039083181 -24.902818 60.591075 6524.8251 2.5684209e+10 0.15262667 0.039720076 -25.083399 60.492186 6527.0165 2.4173972e+10 0.15803088 0.040728460 -25.263979 60.393297 6529.2079 2.2609953e+10 0.16180739 0.042567023 -25.464752 60.285498 6531.3994 2.0938278e+10 0.16560942 0.045809974 -25.666221 60.177392 6533.5908 1.9342104e+10 0.16874795 0.047770661 -25.840219 60.077872 6535.7822 1.7946947e+10 0.16961804 0.047884967 -26.012201 59.978983 6537.9737 1.6696590e+10 0.17165441 0.049144265 -26.199068 59.874512 6540.1651 1.5455322e+10 0.17254604 0.050932096 -26.395623 59.766408 6542.3565 1.4277782e+10 0.17124475 0.051137594 -26.575700 59.663563 6544.5480 1.3298733e+10 0.16998700 0.052088858 -26.743383 59.564673 6546.7394 1.2407761e+10 0.16819214 0.053072919 -26.915729 59.462324 6548.9308 1.1543656e+10 0.16597511 0.053945618 -27.102456 59.349303 6551.1222 1.0719322e+10 0.16435294 0.055278660 -27.284284 59.239248 6553.3137 9.9972999e+09 0.16295594 0.055177389 -27.447666 59.140358 6555.5051 9.3940123e+09 0.16103952 0.054428959 -27.611049 59.041469 6557.6965 8.7832351e+09 0.15921866 0.053429520 -27.790725 58.930089 6559.8880 8.1522584e+09 0.15712911 0.052286955 -27.972538 58.817070 6562.0794 7.5672779e+09 0.15470447 0.050804360 -28.135055 58.716046 6564.2708 7.0749951e+09 0.15217985 0.048648862 -28.294139 58.617157 6566.4622 6.6609976e+09 0.15041003 0.046921391 -28.462542 58.510876 6568.6537 6.2367732e+09 0.14892875 0.045170776 -28.639441 58.397857 6570.8451 5.8316362e+09 0.14774930 0.044567436 -28.803458 58.289628 6573.0365 5.4738628e+09 0.14632532 0.043628160 -28.953965 58.186423 6575.2280 5.1519376e+09 0.14442689 0.042145984 -29.107964 58.081622 6577.4194 4.8469768e+09 0.14220216 0.039561600 -29.279950 57.968603 6579.6108 4.5485603e+09 0.13971221 0.036734699 -29.449193 57.856838 6581.8023 4.3055391e+09 0.13736350 0.035353674 -29.599677 57.753650 6583.9937 4.0897850e+09 0.13487648 0.034518707 -29.750161 57.650462 6586.1851 3.8662978e+09 0.13255758 0.033168903 -29.913944 57.539392 6588.3765 3.6353732e+09 0.13050458 0.033254182 -30.081016 57.426373 6590.5680 3.3954643e+09 0.12786660 0.030005543 -30.228778 57.320890 6592.7594 3.2059586e+09 0.12544226 0.027335912 -30.370663 57.217700 6594.9508 3.0541371e+09 0.12315261 0.025650560 -30.512548 57.116407 6597.1423 2.9301278e+09 0.12081917 0.025677834 -30.654433 57.017517 6599.3337 2.8118097e+09 0.11946538 0.024949800 -30.798084 56.916438 6601.5251 2.6718609e+09 0.11959315 0.027292993 -30.955328 56.798504 6603.7166 2.5303528e+09 0.11854906 0.026239076 -31.111000 56.681749 6605.9080 2.4001024e+09 0.11836826 0.027426769 -31.248585 56.578561 6608.0994 2.2877398e+09 0.11631163 0.023729743 -31.386170 56.475373 6610.2908 2.1829169e+09 0.11340648 0.024280872 -31.538581 56.361065 6612.4823 2.0676026e+09 0.11167736 0.023960416 -31.695825 56.243131 6614.6737 1.9520544e+09 0.11078191 0.023476338 -31.835841 56.135800 6616.8651 1.8476575e+09 0.10947984 0.023418081 -31.969127 56.032612 6619.0566 1.7634646e+09 0.10875212 0.024539562 -32.100721 55.931114 6621.2480 1.6997332e+09 0.10772207 0.025007249 -32.229708 55.832225 6623.4394 1.6401634e+09 0.10581070 0.024654624 -32.359937 55.732051 6625.6309 1.5732509e+09 0.10431126 0.026150398 -32.507354 55.614118 6627.8223 1.4899202e+09 0.10237654 0.025634444 -32.654175 55.496522 6630.0137 1.4196349e+09 0.10082863 0.025928336 -32.783161 55.389034 6632.2051 1.3619932e+09 0.098718158 0.026056943 -32.912147 55.281545 6634.3966 1.3100119e+09 0.096830144 0.026355770 -33.050683 55.166677 6636.5880 1.2493050e+09 0.094945705 0.026321409 -33.193185 55.048743 6638.7794 1.1857696e+09 0.093526400 0.025637685 -33.323724 54.940710 6640.9709 1.1352667e+09 0.093800118 0.025151866 -33.448411 54.837522 6643.1623 1.0902178e+09 0.093234540 0.025217122 -33.577557 54.729236 6645.3537 1.0470078e+09 0.092263664 0.025617388 -33.715146 54.611303 6647.5451 9.9812445e+08 0.091322635 0.026724802 -33.847393 54.497949 6649.7366 9.5236842e+08 0.090565866 0.026618353 -33.967779 54.394761 6651.9280 9.1624233e+08 0.090082633 0.027195348 -34.088166 54.291573 6654.1194 8.8805983e+08 0.089299597 0.027985345 -34.208570 54.188368 6656.3109 8.6016753e+08 0.087383793 0.028296263 -34.328975 54.085163 6658.5023 8.2357265e+08 0.085839054 0.030951909 -34.457454 53.969023 6660.6937 7.8557964e+08 0.084404491 0.032256560 -34.590106 53.846197 6662.8852 7.4878258e+08 0.083105068 0.032547648 -34.712435 53.735613 6665.0766 7.2214844e+08 0.082279535 0.028421645 -34.828541 53.632409 6667.2680 6.9851488e+08 0.081571056 0.027201904 -34.949591 53.524809 6669.4594 6.6763052e+08 0.080417177 0.027883822 -35.082266 53.406876 6671.6509 6.3686056e+08 0.080169829 0.026874624 -35.209439 53.291693 6673.8423 6.0497241e+08 0.079276569 0.028718943 -35.321227 53.184204 6676.0337 5.7545360e+08 0.076810563 0.031735464 -35.433014 53.076716 6678.2252 5.4860764e+08 0.075573001 0.030786016 -35.559778 52.959436 6680.4166 5.2398068e+08 0.075718262 0.029531376 -35.687539 52.841505 6682.6080 5.0162305e+08 0.076087543 0.030889094 -35.797005 52.732998 6684.7995 4.8161484e+08 0.075694853 0.032694661 -35.904493 52.625509 6686.9909 4.5780632e+08 0.073819315 0.034337594 -36.020838 52.511997 6689.1823 4.3537078e+08 0.070873992 0.033851916 -36.143686 52.394063 6691.3737 4.1422119e+08 0.069840383 0.032913085 -36.258215 52.281786 6693.5652 4.0050270e+08 0.068810871 0.031410201 -36.365704 52.174297 6695.7566 3.9255341e+08 0.068358428 0.029720495 -36.475445 52.064555 6697.9480 3.8122259e+08 0.067464071 0.030211240 -36.593377 51.946622 6700.1395 3.6691681e+08 0.065703539 0.030771159 -36.711309 51.827800 6702.3309 3.4794247e+08 0.064230405 0.033140946 -36.829243 51.704954 6704.5223 3.3021961e+08 0.064422958 0.036434039 -36.945029 51.584970 6706.7137 3.1711929e+08 0.064014191 0.039688626 -37.048217 51.481782 6708.9052 3.0742052e+08 0.063230537 0.041029284 -37.151405 51.378594 6711.0966 2.9704033e+08 0.061273360 0.040802145 -37.262654 51.259289 6713.2880 2.8660918e+08 0.058953707 0.044728390 -37.375676 51.136441 6715.4795 2.7291456e+08 0.056774401 0.047868972 -37.480980 51.025647 6717.6709 2.5464092e+08 0.054454079 0.049832770 -37.584168 50.918159 6719.8623 2.4383786e+08 0.052751391 0.050550567 -37.689613 50.805877 6722.0538 2.3885650e+08 0.052516091 0.050538749 -37.797719 50.687943 6724.2452 2.3780581e+08 0.049601699 0.047879212 -37.907907 50.567927 6726.4366 2.3708168e+08 0.045954866 0.040955305 -38.020925 50.445080 6728.6280 2.1903704e+08 0.045095317 0.040518244 -38.126779 50.328205 6730.8195 2.0103508e+08 0.043041693 0.041502501 -38.221369 50.220717 6733.0109 1.9177995e+08 0.041466962 0.043983503 -38.316811 50.112570 6735.2023 1.8773679e+08 0.041442434 0.049508224 -38.424915 49.994638 6737.3938 1.9820594e+08 0.042998639 0.055389906 -38.533020 49.876568 6739.5852 1.8362120e+08 0.042986126 0.063542716 -38.641126 49.753721 6741.7766 1.6078291e+08 0.040650607 0.067973663 -38.749191 49.630910 6743.9681 1.5025159e+08 0.035664256 0.077577889 -38.839648 49.523277 6746.1595 1.3478783e+08 0.033593892 0.077133130 -38.929938 49.415788 6748.3509 1.3409754e+08 0.030276259 0.068863054 -39.028833 49.298055 6750.5423 1.3094237e+08 0.027551934 0.072930200 -39.132024 49.175209 6752.7338 1.1129449e+08 0.024213247 0.073285367 -39.235216 49.055467 6754.9252 1.0540822e+08 0.022533872 0.074725634 -39.338409 48.937533 6757.1166 96356861. 0.019770439 0.076386117 -39.441600 48.816666 6759.3081 93195485. 0.020986426 0.075894294 -39.544792 48.693819 6761.4995 98954642. 0.023685309 0.078009492 -39.645222 48.570972 6763.6909 99008551. 0.028352250 0.078541971 -39.743500 48.448125 6765.8823 97126183. 0.030617477 0.079692269 -39.844366 48.325279 6768.0738 95427045. 0.028019068 0.081121495 -39.947557 48.202432 6770.2652 94246432. 0.023703303 0.087522945 -40.040174 48.087138 6772.4566 93127523. 0.020005084 0.092838126 -40.121865 47.979650 6774.6481 92856546. 0.016297494 0.098153306 -40.206308 47.869613 6776.8395 88764539. 0.012363054 0.10346849 -40.304586 47.746766 6779.0309 85583966. 0.0083664448 0.10878367 -40.402864 47.624563 6781.2224 81090509. 0.0041508781 0.11409885 -40.501142 47.506630 6783.4138 73605295. -0.00049379241 0.11941403 -40.598949 47.388227 6785.6052 67438077. -0.0055389000 0.12472921 -40.692312 47.265380 6787.7966 60595718. -0.011519096 0.13004439 -40.785675 47.142533 6789.9881 56312650. -0.018776852 0.13535957 -40.879039 47.019687 6792.1795 53668355. -0.029976496 0.14067475 -40.972277 46.896840 6794.3709 51760021. -0.074754074 0.14598993 -41.060727 46.773993 6796.5624 53608329. -0.044715143 0.15130511 -41.149184 46.651147 6798.7538 55257788. 0.018152940 0.15662029 -41.242494 46.528300