# # 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 = 53.192735 km # Date (UTC) = 2013-12-14T09:53:39.469 # Date (julian) = 2456640.91226238 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6502.9948 5.6338305e+10 0.055184557 0.033186292 -29.615435 49.961835 6505.4435 5.2890406e+10 0.065088384 0.033924681 -29.730735 49.859345 6507.8922 4.8937478e+10 0.075199883 0.034663070 -29.849290 49.753963 6510.3408 4.5005450e+10 0.085601284 0.035401458 -29.979005 49.638662 6512.7895 4.1011739e+10 0.096256967 0.036139847 -30.106023 49.525211 6515.2382 3.7479470e+10 0.10736067 0.036878236 -30.217053 49.422721 6517.6868 3.4549568e+10 0.11904261 0.037616625 -30.328082 49.320231 6520.1355 3.2065422e+10 0.13130580 0.038355013 -30.439112 49.217743 6522.5842 2.9810834e+10 0.14246586 0.039070220 -30.550141 49.115256 6525.0328 2.7672874e+10 0.14942598 0.039778469 -30.659209 49.012761 6527.4815 2.5740751e+10 0.15428035 0.041066038 -30.765982 48.910258 6529.9302 2.3927754e+10 0.15909922 0.043717441 -30.872754 48.807757 6532.3788 2.2198115e+10 0.16272924 0.047000657 -30.979513 48.705269 6534.8275 2.0553304e+10 0.16510036 0.048176038 -31.086272 48.602781 6537.2762 1.8972931e+10 0.16642222 0.048815421 -31.193031 48.496971 6539.7248 1.7495303e+10 0.16787813 0.050521004 -31.299791 48.390212 6542.1735 1.6120686e+10 0.16765882 0.051068103 -31.406550 48.285314 6544.6222 1.4881218e+10 0.16749259 0.052149050 -31.513309 48.182825 6547.0708 1.3744064e+10 0.16669535 0.053314296 -31.619666 48.080335 6549.5195 1.2734907e+10 0.16512955 0.054495676 -31.722168 47.977832 6551.9682 1.1813135e+10 0.16367630 0.055575587 -31.824670 47.875329 6554.4168 1.0909191e+10 0.16131578 0.054841127 -31.940426 47.759573 6556.8655 1.0030298e+10 0.15933135 0.053885884 -32.060531 47.639466 6559.3141 9.1940556e+09 0.15678913 0.052351723 -32.165942 47.531189 6561.7628 8.4956310e+09 0.15436239 0.050996783 -32.264162 47.428701 6564.2115 7.9156057e+09 0.15173471 0.048675754 -32.363789 47.326213 6566.6601 7.3992833e+09 0.15002879 0.046809441 -32.466277 47.223724 6569.1088 6.9201291e+09 0.14839518 0.044859506 -32.568765 47.121234 6571.5575 6.4685367e+09 0.14734765 0.044351017 -32.667047 47.014512 6574.0061 6.0553832e+09 0.14531720 0.042852054 -32.765278 46.907739 6576.4548 5.6584900e+09 0.14352188 0.040847896 -32.863501 46.803737 6578.9035 5.2820037e+09 0.14095443 0.037222918 -32.961719 46.701249 6581.3521 4.9338646e+09 0.13880566 0.035489975 -33.059938 46.598760 6583.8008 4.6362740e+09 0.13664643 0.034616332 -33.158156 46.496271 6586.2495 4.3646532e+09 0.13436985 0.033168071 -33.256374 46.393782 6588.6981 4.0805121e+09 0.13238307 0.033146784 -33.361792 46.274326 6591.1468 3.8046727e+09 0.12947238 0.029036254 -33.467486 46.154220 6593.5955 3.5371568e+09 0.12672468 0.026548611 -33.562825 46.049646 6596.0441 3.3119963e+09 0.12308144 0.025727073 -33.656773 45.947158 6598.4928 3.1239145e+09 0.12011519 0.025171882 -33.750728 45.844662 6600.9415 2.9488593e+09 0.11895619 0.026925368 -33.844687 45.742159 6603.3901 2.7986504e+09 0.11724608 0.026432313 -33.938644 45.638811 6605.8388 2.6618239e+09 0.11652337 0.027368733 -34.032593 45.532052 6608.2875 2.5307967e+09 0.11428858 0.023724771 -34.126541 45.425293 6610.7361 2.4138288e+09 0.11111289 0.024706340 -34.216830 45.322192 6613.1848 2.2989735e+09 0.10995165 0.023641395 -34.306508 45.219702 6615.6335 2.1842784e+09 0.10857146 0.023271022 -34.401960 45.108140 6618.0821 2.0680667e+09 0.10791586 0.023832818 -34.502850 44.988034 6620.5308 1.9475140e+09 0.10727273 0.024938248 -34.598885 44.875560 6622.9795 1.8378675e+09 0.10586636 0.024497291 -34.688574 44.773059 6625.4281 1.7377312e+09 0.10436881 0.025908496 -34.778262 44.670165 6627.8768 1.6523252e+09 0.10239402 0.025655504 -34.867939 44.563406 6630.3255 1.5749718e+09 0.10069731 0.025929104 -34.957616 44.456647 6632.7741 1.5045890e+09 0.098797822 0.026125170 -35.047294 44.353092 6635.2228 1.4445242e+09 0.096847617 0.026433199 -35.136971 44.250603 6637.6715 1.3746497e+09 0.095116574 0.025832549 -35.229267 44.140914 6640.1201 1.3035446e+09 0.094618812 0.025255954 -35.325352 44.020807 6642.5688 1.2275220e+09 0.094260654 0.025174972 -35.417944 43.906465 6645.0175 1.1579943e+09 0.092873748 0.025459865 -35.503352 43.803978 6647.4661 1.1044312e+09 0.091108735 0.026683198 -35.588759 43.701490 6649.9148 1.0605196e+09 0.089635419 0.026372689 -35.674178 43.598987 6652.3635 1.0212974e+09 0.088417650 0.027350523 -35.759597 43.496484 6654.8121 9.7533113e+08 0.086792139 0.027690252 -35.848790 43.382644 6657.2608 9.2202508e+08 0.084420450 0.029203622 -35.940070 43.262538 6659.7095 8.7129738e+08 0.082743693 0.031686605 -36.028047 43.152343 6662.1581 8.3122386e+08 0.081192481 0.032955554 -36.113454 43.049855 6664.6068 7.9578350e+08 0.080236388 0.029985868 -36.200159 42.943476 6667.0555 7.5997478e+08 0.080030937 0.027123828 -36.291439 42.823370 6669.5041 7.1837028e+08 0.079106102 0.027837934 -36.381305 42.705719 6671.9528 6.7841777e+08 0.079103575 0.026878927 -36.462443 42.603230 6674.4015 6.4484523e+08 0.078060886 0.029293444 -36.543581 42.500741 6676.8501 6.1804643e+08 0.075562126 0.032261622 -36.624726 42.394835 6679.2988 5.9542347e+08 0.074954661 0.030020867 -36.705873 42.288061 6681.7475 5.7078434e+08 0.075937327 0.030230792 -36.789452 42.177398 6684.1961 5.4292454e+08 0.076145724 0.032664044 -36.875928 42.062097 6686.6448 5.1217269e+08 0.074909242 0.034136230 -36.960403 41.949997 6689.0935 4.8695645e+08 0.071719192 0.033931903 -37.041540 41.843238 6691.5421 4.6636161e+08 0.070559968 0.032873359 -37.122853 41.736196 6693.9908 4.4854508e+08 0.069268903 0.031264189 -37.209329 41.620894 6696.4394 4.2904560e+08 0.068913736 0.029858368 -37.295806 41.505592 6698.8881 4.0466827e+08 0.067525904 0.031436857 -37.382282 41.385719 6701.3368 3.8296962e+08 0.065434462 0.031903600 -37.468758 41.265613 6703.7854 3.6061468e+08 0.065296922 0.035640675 -37.546874 41.160834 6706.2341 3.4554992e+08 0.065077274 0.038853861 -37.623741 41.058344 6708.6828 3.3315725e+08 0.064314164 0.040787101 -37.705691 40.946539 6711.1314 3.1959271e+08 0.062340370 0.040841782 -37.792181 40.826414 6713.5801 3.0288740e+08 0.059981885 0.045784764 -37.872458 40.714175 6716.0288 2.8747228e+08 0.058014185 0.048443747 -37.945053 40.611687 6718.4774 2.7485252e+08 0.055598901 0.050555997 -38.019112 40.507849 6720.9261 2.6271852e+08 0.055490768 0.050312460 -38.105588 40.392547 6723.3748 2.5346340e+08 0.054170421 0.049577963 -38.191950 40.277130 6725.8234 2.3932652e+08 0.049928343 0.041061655 -38.273622 40.157024 6728.2721 2.2832235e+08 0.049091786 0.040013766 -38.355295 40.036918 6730.7208 2.1680090e+08 0.047419761 0.041367172 -38.436967 39.921341 6733.1694 2.0435831e+08 0.046044235 0.044844248 -38.518638 39.806040 6735.6181 1.9579237e+08 0.046754576 0.049949598 -38.592497 39.698093 6738.0668 1.8869184e+08 0.048232259 0.057688704 -38.665095 39.591333 6740.5154 1.8241401e+08 0.047568947 0.064930900 -38.739915 39.480129 6742.9641 1.7659579e+08 0.043837325 0.070959975 -38.816794 39.364810 6745.4128 1.6842069e+08 0.040386647 0.078740412 -38.895772 39.247394 6747.8614 1.6164079e+08 0.035973785 0.067064602 -38.977443 39.127288 6750.3101 1.5880018e+08 0.033102258 0.072533645 -39.057402 39.008895 6752.7588 1.5171414e+08 0.030114932 0.073256439 -39.134269 38.893595 6755.2074 1.4469359e+08 0.027935672 0.074514399 -39.211137 38.778293 6757.6561 1.3410748e+08 0.025882480 0.074748964 -39.288005 38.662990 6760.1048 1.2444749e+08 0.026534170 0.076261057 -39.364873 38.546758 6762.5534 1.1918439e+08 0.030816892 0.077158112 -39.441741 38.426652 6765.0021 1.1414320e+08 0.033644677 0.079531576 -39.518609 38.307084 6767.4508 1.1061245e+08 0.032505166 0.081471025 -39.595476 38.191784 6769.8994 1.0599169e+08 0.027147650 0.086635778 -39.672344 38.076483 6772.3481 1.0264987e+08 0.022655003 0.092574870 -39.749213 37.961181 6774.7968 99761646. 0.018175377 0.098513961 -39.826083 37.845878 6777.2454 96983987. 0.013705828 0.10445305 -39.902951 37.726017 6779.6941 91220858. 0.0091782652 0.11039214 -39.979819 37.605910 6782.1428 84791622. 0.0046173701 0.11633124 -40.052518 37.489972 6784.5914 80471919. 0.00010179896 0.12227033 -40.124581 37.374669 6787.0401 75881523. -0.0044330429 0.12820942 -40.200429 37.255577 6789.4888 73805216. -0.0088783972 0.13414851 -40.277308 37.135453 6791.9374 69732684. -0.013426911 0.14008760 -40.358051 37.007117 6794.3861 67342153. -0.017921545 0.14602670 -40.440412 36.875342 6796.8348 69034823. -0.022218584 0.15196579 -40.513673 36.758122 6799.2834 66678307. -0.026778124 0.15790488 -40.585736 36.642820 6801.7321 63488872. -0.031475986 0.16384397 -40.657800 36.527518 6804.1808 58053474. -0.036521584 0.16978306 -40.729865 36.412217 6806.6294 53472225. -0.041829021 0.17572215 -40.801929 36.293454 6809.0781 53143089. -0.047088660 0.18166125 -40.873993 36.173348 6811.5268 51004060. -0.053398265 0.18760034 -40.949128 36.045783 6813.9754 50679634. -0.061758463 0.19353943 -41.025997 35.914006 6816.4241 49444090. -0.090967145 0.19947852 -41.098935 35.795704 6818.8728 48304925. -0.074329299 0.20541761 -41.170998 35.680403 6821.3214 46641072. -0.032465722 0.21135671 -41.246601 35.548928