# # 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 = 44.586601 km # Date (UTC) = 2013-01-03T09:30:50.898 # Date (julian) = 2456295.89642243 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6491.8691 1.0235098e+11 0.026335278 0.029831368 -24.881540 47.450062 6493.7879 9.4114078e+10 0.031706907 0.030409969 -24.971896 47.355941 6495.7067 8.5611045e+10 0.036803371 0.030988571 -25.062247 47.261826 6497.6255 7.7978705e+10 0.041558109 0.031567172 -25.152597 47.167711 6499.5442 7.1943146e+10 0.046129571 0.032145774 -25.230658 47.080126 6501.4630 6.7285155e+10 0.050822368 0.032724376 -25.307621 46.993124 6503.3818 6.3418594e+10 0.055910032 0.033302977 -25.384585 46.906122 6505.3006 5.9500866e+10 0.061477394 0.033881579 -25.473994 46.812507 6507.2193 5.5574589e+10 0.067696226 0.034460180 -25.564344 46.718392 6509.1381 5.1291457e+10 0.074565179 0.035038782 -25.653666 46.624277 6511.0569 4.7226876e+10 0.082356669 0.035617384 -25.740252 46.530162 6512.9757 4.3387867e+10 0.091156448 0.036195985 -25.826839 46.436047 6514.8944 4.0117023e+10 0.10120795 0.036774587 -25.905423 46.346320 6516.8132 3.7449924e+10 0.11267716 0.037353188 -25.979041 46.259316 6518.7320 3.5263318e+10 0.12546518 0.037931790 -26.052658 46.172313 6520.6508 3.3217095e+10 0.13923194 0.038510392 -26.134435 46.080830 6522.5695 3.0994143e+10 0.15194934 0.039066391 -26.221034 45.986701 6524.4883 2.8619897e+10 0.16125140 0.039600435 -26.307633 45.892572 6526.4071 2.6268612e+10 0.16798708 0.040094870 -26.390557 45.794796 6528.3259 2.4006718e+10 0.17329000 0.041700991 -26.473379 45.696917 6530.2446 2.2018468e+10 0.17653506 0.044171185 -26.553289 45.603537 6532.1634 2.0389040e+10 0.17797851 0.046820706 -26.626907 45.519880 6534.0822 1.9075636e+10 0.17760413 0.047967548 -26.700524 45.436224 6536.0010 1.7877838e+10 0.17604559 0.047791364 -26.777160 45.349138 6537.9197 1.6586491e+10 0.17658671 0.049118842 -26.859981 45.255023 6539.8385 1.5289481e+10 0.17604519 0.050658628 -26.942801 45.160908 6541.7573 1.4088973e+10 0.17392570 0.051080946 -27.017194 45.071569 6543.6761 1.3132927e+10 0.17219217 0.051559330 -27.087466 44.984565 6545.5948 1.2346360e+10 0.17076664 0.052460896 -27.157738 44.897562 6547.5136 1.1627923e+10 0.16971390 0.053482683 -27.236583 44.805700 6549.4324 1.0914670e+10 0.16817142 0.054406921 -27.319404 44.711585 6551.3512 1.0167178e+10 0.16674703 0.055359016 -27.402124 44.617368 6553.2699 9.4351457e+09 0.16547310 0.055199371 -27.481193 44.519475 6555.1887 8.7318498e+09 0.16403463 0.054694797 -27.560262 44.421581 6557.1075 8.1165578e+09 0.16218005 0.053798730 -27.634826 44.328968 6559.0263 7.6100697e+09 0.15952207 0.052384217 -27.701751 44.245312 6560.9450 7.1935933e+09 0.15677190 0.051422231 -27.768676 44.161656 6562.8638 6.8232173e+09 0.15432464 0.050057948 -27.840242 44.072558 6564.7826 6.4525101e+09 0.15154872 0.048416926 -27.919299 43.974677 6566.7014 6.0649029e+09 0.14874144 0.046786122 -27.998356 43.876797 6568.6201 5.6878481e+09 0.14619305 0.045201602 -28.074678 43.781651 6570.5389 5.3181047e+09 0.14435580 0.044694270 -28.149970 43.687536 6572.4577 4.9774525e+09 0.14256447 0.043968045 -28.224677 43.593918 6574.3765 4.6952175e+09 0.14047391 0.042674188 -28.291602 43.506916 6576.2952 4.4683739e+09 0.13847085 0.041031559 -28.358528 43.419913 6578.2140 4.2811468e+09 0.13624954 0.038311650 -28.426135 43.332332 6580.1328 4.0714795e+09 0.13417955 0.036398030 -28.501427 43.238217 6582.0516 3.8409651e+09 0.13219834 0.035279761 -28.576719 43.144102 6583.9703 3.6214889e+09 0.13016290 0.034530520 -28.648458 43.053006 6585.8891 3.4434850e+09 0.12824148 0.033259940 -28.715392 42.965992 6587.8079 3.2978472e+09 0.12664016 0.033337369 -28.782326 42.878978 6589.7267 3.1577051e+09 0.12444357 0.031604324 -28.851267 42.788860 6591.6454 3.0058730e+09 0.12183053 0.028473597 -28.922795 42.694745 6593.5642 2.8486705e+09 0.11948497 0.026577664 -28.994323 42.600630 6595.4830 2.6946802e+09 0.11683385 0.025673659 -29.065850 42.503575 6597.4018 2.5314193e+09 0.11450721 0.025595942 -29.137378 42.405695 6599.3205 2.3842948e+09 0.11272187 0.024949010 -29.207916 42.309585 6601.2393 2.2578097e+09 0.11212364 0.027158398 -29.271494 42.225929 6603.1581 2.1612698e+09 0.11046576 0.026569679 -29.335073 42.142272 6605.0769 2.0841750e+09 0.10904820 0.026729536 -29.399733 42.056680 6606.9957 1.9933865e+09 0.10718048 0.025714810 -29.471261 41.958801 6608.9144 1.8977706e+09 0.10366677 0.023708194 -29.542788 41.860922 6610.8332 1.7968795e+09 0.10046791 0.024799084 -29.614316 41.764849 6612.7520 1.6953722e+09 0.099071521 0.023758903 -29.685844 41.670734 6614.6708 1.6032655e+09 0.098030680 0.023478370 -29.757371 41.576619 6616.5895 1.5205999e+09 0.096895181 0.023374825 -29.819605 41.488350 6618.5083 1.4531705e+09 0.096496839 0.024154625 -29.879846 41.401335 6620.4271 1.3964193e+09 0.095968325 0.024904823 -29.940086 41.314320 6622.3459 1.3376015e+09 0.094884877 0.024665938 -30.006611 41.221374 6624.2646 1.2765956e+09 0.093371929 0.025003964 -30.074373 41.127258 6626.1834 1.2163520e+09 0.092345062 0.026357230 -30.142135 41.032469 6628.1022 1.1522363e+09 0.091044700 0.025744581 -30.209898 40.934590 6630.0210 1.0929186e+09 0.089951399 0.025928353 -30.277661 40.836711 6631.9397 1.0358625e+09 0.088431925 0.026026223 -30.341488 40.746268 6633.8585 9.8871301e+08 0.087141332 0.026302139 -30.401720 40.662611 6635.7773 9.5343012e+08 0.085746490 0.026516353 -30.461953 40.578955 6637.6961 9.1410553e+08 0.084679703 0.025820505 -30.526210 40.489710 6639.6148 8.7951739e+08 0.084096699 0.025408320 -30.593973 40.395594 6641.5336 8.3948136e+08 0.084317416 0.025150112 -30.661736 40.301479 6643.4524 7.9762036e+08 0.083576084 0.025260923 -30.726193 40.204057 6645.3712 7.5978173e+08 0.082591540 0.025625558 -30.790192 40.106177 6647.2899 7.2066818e+08 0.081468376 0.026590431 -30.855025 40.009132 6649.2087 6.8489402e+08 0.080298821 0.027345993 -30.922787 39.915017 6651.1275 6.5098491e+08 0.079815286 0.026581863 -30.990550 39.820902 6653.0463 6.1705753e+08 0.079375226 0.027549280 -31.052168 39.730802 6654.9650 5.8854985e+08 0.078209161 0.027625112 -31.109062 39.643788 6656.8838 5.6544162e+08 0.076463664 0.028799132 -31.165956 39.556775 6658.8026 5.4649718e+08 0.075187920 0.031484479 -31.226951 39.465661 6660.7214 5.2511855e+08 0.074208187 0.032281679 -31.290950 39.371546 6662.6401 4.9892938e+08 0.073291916 0.032685118 -31.354948 39.277431 6664.5589 4.7694795e+08 0.072576156 0.030161057 -31.418946 39.179847 6666.4777 4.5146382e+08 0.072630147 0.027001678 -31.482945 39.081966 6668.3965 4.3230181e+08 0.071870368 0.027821615 -31.545947 38.985083 6670.3152 4.1120929e+08 0.071721958 0.027182588 -31.606180 38.890968 6672.2340 3.9078926e+08 0.071543821 0.027015237 -31.666414 38.796853 6674.1528 3.7497160e+08 0.070724686 0.029083677 -31.724611 38.709101 6676.0716 3.6292138e+08 0.068611405 0.031759846 -31.781497 38.625444 6677.9903 3.5085854e+08 0.067700829 0.030950349 -31.838384 38.541788 6679.9091 3.3678430e+08 0.067735086 0.029516521 -31.897345 38.449314 6681.8279 3.1927738e+08 0.068373842 0.030292502 -31.957579 38.351435 6683.7467 3.0258146e+08 0.068572703 0.032282825 -32.017812 38.253556 6685.6654 2.9293177e+08 0.068034958 0.033407706 -32.078046 38.159304 6687.5842 2.8191830e+08 0.065911952 0.034017078 -32.138280 38.065188 6689.5030 2.7226812e+08 0.063546020 0.033563252 -32.198516 37.969912 6691.4218 2.6229434e+08 0.062464359 0.032901754 -32.258759 37.872018 6693.3405 2.4977522e+08 0.061495545 0.031487262 -32.319001 37.774124 6695.2593 2.4095326e+08 0.060881983 0.029811841 -32.379238 37.678692 6697.1781 2.2775065e+08 0.060161771 0.030113803 -32.439472 37.584577 6699.0969 2.1231909e+08 0.058826154 0.031501052 -32.499705 37.490463 6701.0156 2.0531826e+08 0.057060256 0.031432398 -32.559939 37.396348 6702.9344 1.9703942e+08 0.056682837 0.033622867 -32.620172 37.302233 6704.8532 1.9005639e+08 0.056699768 0.036596516 -32.680406 37.206842 6706.7720 1.8309581e+08 0.056261375 0.039789954 -32.740639 37.108962 6708.6907 1.7255808e+08 0.055649529 0.040795773 -32.800873 37.011081 6710.6095 1.6885711e+08 0.054167906 0.040615801 -32.858538 36.915770 6712.5283 1.6520311e+08 0.052207162 0.042810824 -32.915007 36.821655 6714.4471 1.5802065e+08 0.050175224 0.047337019 -32.971477 36.727539 6716.3658 1.5001679e+08 0.048382332 0.048940215 -33.027945 36.633424 6718.2846 1.4124124e+08 0.046265992 0.050255688 -33.084414 36.539309 6720.2034 1.3667447e+08 0.045498783 0.050396200 -33.140882 36.443803 6722.1222 1.3233982e+08 0.045345048 0.050454169 -33.197352 36.345924 6724.0409 1.2627031e+08 0.043267311 0.049584736 -33.253821 36.248045 6725.9597 1.1974430e+08 0.039546988 0.040976528 -33.310290 36.152851 6727.8785 1.1392012e+08 0.038753610 0.039789977 -33.366758 36.058736 6729.7973 1.1011322e+08 0.037698943 0.040514025 -33.423226 35.964621 6731.7160 1.0784546e+08 0.036229159 0.043175091 -33.479696 35.870506 6733.6348 1.0562292e+08 0.035374762 0.047370944 -33.536166 35.776390 6735.5536 1.0498083e+08 0.036536424 0.049881117 -33.592639 35.682269 6737.4724 1.0167771e+08 0.037907191 0.055640322 -33.649117 35.588140 6739.3911 94973971. 0.038101302 0.063305243 -33.705595 35.494011 6741.3099 85687898. 0.036461458 0.066642612 -33.762066 35.397088 6743.2287 78488911. 0.032726884 0.072590239 -33.818534 35.299208 6745.1475 75555336. 0.030125173 0.078628884 -33.874668 35.201661 6747.0662 76850669. 0.025846639 0.067338354 -33.927372 35.107546 6748.9850 77440759. 0.026176207 0.072199150 -33.980077 35.013431 6750.9038 76546619. 0.023256854 0.073547407 -34.036037 34.913503 6752.8226 71646697. 0.019885257 0.073182602 -34.096273 34.805941 6754.7414 65868211. 0.017158457 0.075021286 -34.156102 34.699831 6756.6601 61158749. 0.012741913 0.075865512 -34.212570 34.605716 6758.5789 56943712. 0.0096764956 0.074929487 -34.269039 34.511600 6760.4977 55468804. 0.0031465600 0.077010318 -34.323807 34.415785 6762.4165 54711245. -0.032880937 0.077379073 -34.376511 34.317906 6764.3352 54303090. 0.0035830304 0.079499345 -34.429215 34.220027 6766.2540 53131923. 0.076382228 0.080288307 -34.481921 34.125142