# # 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 = 45.263563 km # Date (UTC) = 2014-01-05T09:18:07.695 # Date (julian) = 2456662.88758906 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6491.7681 6.2744068e+10 0.028404577 0.029800904 -19.893168 49.210031 6493.6894 5.7335976e+10 0.033913876 0.030380266 -19.991176 49.115793 6495.6107 5.2349712e+10 0.039159739 0.030959628 -20.088447 49.021554 6497.5320 4.8442734e+10 0.044045376 0.031538990 -20.182686 48.927315 6499.4533 4.4778550e+10 0.048646868 0.032118352 -20.276924 48.833076 6501.3746 4.0868195e+10 0.052980900 0.032697715 -20.371163 48.738837 6503.2959 3.7564964e+10 0.057199343 0.033277077 -20.465402 48.644598 6505.2172 3.4844441e+10 0.061619690 0.033856439 -20.559641 48.550360 6507.1385 3.2807974e+10 0.066635188 0.034435801 -20.644568 48.465432 6509.0598 3.1274556e+10 0.072556766 0.035015163 -20.728346 48.381655 6510.9811 2.9866159e+10 0.079534098 0.035594525 -20.812123 48.297877 6512.9024 2.8505228e+10 0.087652984 0.036173887 -20.905378 48.204622 6514.8237 2.7118772e+10 0.096997828 0.036753250 -20.999617 48.110383 6516.7450 2.5622612e+10 0.10753586 0.037332612 -21.092902 48.016145 6518.6663 2.4102566e+10 0.11924085 0.037911974 -21.183371 47.921906 6520.5876 2.2560105e+10 0.13203018 0.038491336 -21.273840 47.827667 6522.5089 2.1169129e+10 0.14453261 0.039050503 -21.358274 47.739715 6524.4302 2.0060166e+10 0.15421573 0.039579778 -21.438690 47.655949 6526.3515 1.9114670e+10 0.16167588 0.040036552 -21.519105 47.572182 6528.2728 1.8156258e+10 0.16772679 0.041658863 -21.603391 47.481967 6530.1941 1.7085849e+10 0.17133236 0.044100370 -21.690091 47.387728 6532.1154 1.5936360e+10 0.17269669 0.046780556 -21.776792 47.293489 6534.0366 1.4827678e+10 0.17221096 0.047954809 -21.867121 47.195619 6535.9579 1.3774403e+10 0.17068966 0.047808744 -21.957590 47.097610 6537.8792 1.2821568e+10 0.17114896 0.049099750 -22.043905 47.004015 6539.8005 1.2010437e+10 0.17065018 0.050612663 -22.120981 46.920238 6541.7218 1.1331445e+10 0.16869826 0.051092443 -22.198056 46.836460 6543.6431 1.0714035e+10 0.16712980 0.051550687 -22.277040 46.749271 6545.5644 1.0066841e+10 0.16589576 0.052460624 -22.359970 46.655033 6547.4857 9.4137700e+09 0.16501895 0.053472079 -22.442900 46.560794 6549.4070 8.7840871e+09 0.16372545 0.054381075 -22.528368 46.466555 6551.3283 8.2050249e+09 0.16265823 0.055350999 -22.615068 46.372316 6553.2496 7.6834555e+09 0.16180361 0.055209585 -22.701504 46.278291 6555.1709 7.2218456e+09 0.16077343 0.054709750 -22.775218 46.194525 6557.0922 6.8604161e+09 0.15933942 0.053808304 -22.848932 46.110758 6559.0135 6.5500960e+09 0.15720493 0.052385656 -22.922977 46.026481 6560.9348 6.2389383e+09 0.15515731 0.051431455 -23.005907 45.928473 6562.8561 5.9042953e+09 0.15351604 0.050065283 -23.088837 45.830465 6564.7774 5.5419075e+09 0.15160277 0.048419276 -23.171767 45.733901 6566.6987 5.1985092e+09 0.14967651 0.046787629 -23.254698 45.639662 6568.6200 4.8814521e+09 0.14797682 0.045201732 -23.337628 45.545424 6570.5413 4.6078564e+09 0.14682492 0.044693284 -23.411389 45.458824 6572.4626 4.3923241e+09 0.14548025 0.043965238 -23.481761 45.375047 6574.3839 4.2074670e+09 0.14372040 0.042670622 -23.552134 45.291269 6576.3052 4.0328585e+09 0.14207203 0.041020111 -23.629064 45.196873 6578.2265 3.8464278e+09 0.14033187 0.038291961 -23.708225 45.098864 6580.1478 3.6497747e+09 0.13870461 0.036384177 -23.787386 45.001206 6582.0691 3.4569506e+09 0.13710365 0.035274995 -23.866546 44.906968 6583.9904 3.2607599e+09 0.13549543 0.034520380 -23.945706 44.812729 6585.9117 3.0889572e+09 0.13403838 0.033241907 -24.020992 44.723103 6587.8330 2.9345443e+09 0.13303556 0.033342925 -24.091356 44.639336 6589.7543 2.8166721e+09 0.13127168 0.031549567 -24.161721 44.555570 6591.6756 2.7125068e+09 0.12898426 0.028439607 -24.234377 44.467028 6593.5969 2.6002311e+09 0.12694138 0.026547314 -24.309767 44.372790 6595.5182 2.4841486e+09 0.12456432 0.025677306 -24.385158 44.278551 6597.4395 2.3556760e+09 0.12255365 0.025584049 -24.463576 44.181285 6599.3608 2.2342845e+09 0.12109611 0.024951428 -24.542737 44.083277 6601.2821 2.1172993e+09 0.12081990 0.027178523 -24.620074 43.987408 6603.2034 2.0156102e+09 0.11955280 0.026542888 -24.687096 43.903631 6605.1247 1.9371034e+09 0.11849175 0.026769617 -24.754117 43.819853 6607.0460 1.8664238e+09 0.11678185 0.025616261 -24.822530 43.734337 6608.9672 1.7914060e+09 0.11340907 0.023706797 -24.897921 43.640099 6610.8885 1.7120351e+09 0.11032213 0.024851963 -24.973312 43.545860 6612.8098 1.6282134e+09 0.10909311 0.023715669 -25.046768 43.449686 6614.7311 1.5493694e+09 0.10808119 0.023436766 -25.118390 43.351678 6616.6524 1.4709087e+09 0.10701249 0.023384699 -25.190012 43.253671 6618.5737 1.4001704e+09 0.10668421 0.024204034 -25.254784 43.167918 6620.4950 1.3449234e+09 0.10617366 0.024926721 -25.318446 43.084152 6622.4163 1.3015037e+09 0.10498719 0.024647180 -25.382108 43.000385 6624.3376 1.2581183e+09 0.10338176 0.025043040 -25.456045 42.907445 6626.2589 1.2093901e+09 0.10217082 0.026261011 -25.531437 42.813206 6628.1802 1.1514290e+09 0.10084766 0.025776267 -25.605987 42.718125 6630.1015 1.0930452e+09 0.099683817 0.025928552 -25.677608 42.620116 6632.0228 1.0387623e+09 0.098136987 0.026035081 -25.749230 42.522107 6633.9441 9.8555365e+08 0.096829992 0.026317085 -25.814400 42.432222 6635.8654 9.5031348e+08 0.095360016 0.026529569 -25.874711 42.348456 6637.7867 9.1732817e+08 0.094199648 0.025776106 -25.935023 42.264689 6639.7080 8.8535308e+08 0.093576979 0.025375017 -26.001967 42.174779 6641.6293 8.5529969e+08 0.093545543 0.025150437 -26.073600 42.080526 6643.5506 8.1756637e+08 0.092586458 0.025275752 -26.145232 41.986272 6645.4719 7.8576885e+08 0.091414654 0.025672751 -26.213336 41.892033 6647.3932 7.5303009e+08 0.090116791 0.026644799 -26.281188 41.797794 6649.3145 7.2023226e+08 0.088807529 0.027200175 -26.350098 41.702498 6651.2358 6.8679304e+08 0.088130693 0.026664864 -26.421719 41.604490 6653.1571 6.5100142e+08 0.087518673 0.027605865 -26.493341 41.506483 6655.0784 6.2009074e+08 0.086186075 0.027642605 -26.555759 41.417415 6656.9997 5.9286452e+08 0.084354205 0.028900832 -26.612720 41.333649 6658.9210 5.7110967e+08 0.082948236 0.031694454 -26.669681 41.249883 6660.8423 5.5411521e+08 0.081788397 0.032391587 -26.733648 41.159379 6662.7636 5.3536204e+08 0.080686888 0.032615861 -26.801501 41.065140 6664.6849 5.1476190e+08 0.079899015 0.029700172 -26.869353 40.970893 6666.6062 4.9398335e+08 0.079683210 0.027026715 -26.937204 40.872928 6668.5275 4.6938116e+08 0.078779856 0.027937545 -27.005055 40.774919 6670.4488 4.4257196e+08 0.078683484 0.027120727 -27.071634 40.678183 6672.3701 4.2108379e+08 0.078404348 0.027094093 -27.135717 40.583944 6674.2914 4.0205973e+08 0.077429283 0.029200571 -27.199799 40.489706 6676.2127 3.8870569e+08 0.075242678 0.031850780 -27.261305 40.402631 6678.1340 3.7909517e+08 0.074243214 0.030847020 -27.321625 40.318853 6680.0553 3.6354597e+08 0.074374007 0.029453347 -27.381944 40.235076 6681.9765 3.5087587e+08 0.074841967 0.030406551 -27.444901 40.143968 6683.8978 3.3566520e+08 0.074916406 0.032504383 -27.508983 40.049730 6685.8191 3.2070906e+08 0.074358817 0.033570054 -27.573065 39.955311 6687.7404 3.0589250e+08 0.072162279 0.033929949 -27.637148 39.857303 6689.6617 2.9205040e+08 0.069971454 0.033420354 -27.701231 39.759294 6691.5830 2.8326902e+08 0.068827717 0.032863705 -27.763824 39.662775 6693.5043 2.7105134e+08 0.067848413 0.031431072 -27.824137 39.568537 6695.4256 2.6013504e+08 0.067366991 0.029781291 -27.884449 39.474298 6697.3469 2.4883251e+08 0.066659728 0.030135169 -27.947560 39.380059 6699.2682 2.3697474e+08 0.065365016 0.031342938 -28.011642 39.285821 6701.1895 2.2701376e+08 0.063722962 0.031687529 -28.075388 39.191582 6703.1108 2.1726147e+08 0.063586121 0.033952540 -28.135700 39.097343 6705.0321 2.0532578e+08 0.063752842 0.036725703 -28.196013 39.003105 6706.9534 1.9641576e+08 0.063355826 0.040105747 -28.257971 38.907220 6708.8747 1.9143488e+08 0.062745310 0.040996108 -28.322054 38.809210 6710.7960 1.8607621e+08 0.061176422 0.040652304 -28.386137 38.711201 6712.7173 1.8377676e+08 0.059186501 0.043161757 -28.447265 38.616146 6714.6386 1.7612731e+08 0.057216580 0.047351419 -28.507578 38.521908 6716.5599 1.6443193e+08 0.055446961 0.049226043 -28.567892 38.427667 6718.4812 1.5535853e+08 0.053345257 0.050561844 -28.628213 38.333415 6720.4025 1.4966358e+08 0.052829576 0.050373130 -28.688535 38.239162 6722.3238 1.4631434e+08 0.052354653 0.050204912 -28.748852 38.144916 6724.2451 1.4115187e+08 0.049766402 0.047879999 -28.809165 38.050677 6726.1664 1.3686849e+08 0.046411364 0.040952868 -28.869478 37.956438 6728.0877 1.2686617e+08 0.045699435 0.039752378 -28.926679 37.862200 6730.0090 1.2112039e+08 0.044287556 0.040391218 -28.983223 37.767961 6731.9303 1.1539533e+08 0.042584366 0.043601453 -29.040417 37.673071 6733.8516 1.1044737e+08 0.041475175 0.048547769 -29.100730 37.575063 6735.7729 1.1005935e+08 0.042633919 0.050113896 -29.161044 37.477055 6737.6942 1.0350154e+08 0.043666596 0.056346868 -29.219397 37.381007 6739.6155 1.0111625e+08 0.043618092 0.063579769 -29.275940 37.286768 6741.5368 94663920. 0.041879741 0.067289581 -29.332483 37.192529 6743.4581 86473291. 0.037912916 0.074137528 -29.389026 37.098291 6745.3794 82801233. 0.035675084 0.078726367 -29.445569 37.004052 6747.3007 76231525. 0.031001637 0.067257656 -29.502112 36.909814 6749.2220 75476476. 0.030406615 0.072217161 -29.558655 36.815575 6751.1433 74710367. 0.027564056 0.073772239 -29.615198 36.721336 6753.0646 73328001. 0.024757820 0.073186189 -29.671742 36.627097 6754.9858 74652755. 0.022609154 0.074628103 -29.728286 36.532858 6756.9071 70616382. 0.018833325 0.076501129 -29.784830 36.438619 6758.8284 66188814. 0.016154531 0.075457175 -29.848713 36.332147 6760.7497 59837907. -0.0045992382 0.077490992 -29.913335 36.224443 6762.6710 54963810. 0.015803900 0.076968406 -29.973212 36.124648 6764.5923 53335621. 0.057613413 0.079511663 -30.029755 36.030409