# # 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 = 43.474944 km # Date (UTC) = 2013-01-20T09:56:33.477 # Date (julian) = 2456312.91427636 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6494.5488 8.5421843e+10 0.019605943 0.030639408 -27.622997 53.396623 6496.3930 7.8818757e+10 0.025240964 0.031195526 -27.762912 53.271183 6498.2372 7.2872985e+10 0.031081885 0.031751643 -27.899955 53.145757 6500.0814 6.7579774e+10 0.037227847 0.032307760 -28.035018 53.020340 6501.9256 6.3069900e+10 0.043804573 0.032863877 -28.160081 52.904210 6503.7698 6.0170057e+10 0.051212046 0.033419995 -28.275869 52.796693 6505.6141 5.7591266e+10 0.059239153 0.033976112 -28.393114 52.687371 6507.4583 5.4858189e+10 0.067773034 0.034532229 -28.523380 52.561929 6509.3025 5.1825752e+10 0.076772927 0.035088347 -28.653125 52.436989 6511.1467 4.9218745e+10 0.086543626 0.035644464 -28.764778 52.329472 6512.9909 4.7344265e+10 0.097227278 0.036200581 -28.876431 52.221955 6514.8351 4.5289186e+10 0.10837855 0.036756698 -28.996492 52.100566 6516.6793 4.2879122e+10 0.11984943 0.037312816 -29.121934 51.970300 6518.5235 4.0369510e+10 0.13168869 0.037868933 -29.237748 51.852252 6520.3677 3.8240185e+10 0.14402759 0.038425050 -29.345266 51.744735 6522.2120 3.6435580e+10 0.15608941 0.038972756 -29.454915 51.635087 6524.0562 3.4380933e+10 0.16326296 0.039446916 -29.580356 51.509645 6525.9004 3.2104273e+10 0.16921453 0.039679456 -29.704778 51.385031 6527.7446 2.9843411e+10 0.17546369 0.041257058 -29.808161 51.277514 6529.5888 2.7914047e+10 0.17911304 0.043173707 -29.911543 51.169997 6531.4330 2.6247649e+10 0.18081518 0.045858948 -30.017522 51.059882 6533.2772 2.4709132e+10 0.18190761 0.047637403 -30.125039 50.948229 6535.1214 2.3144547e+10 0.18165741 0.048171613 -30.234293 50.833683 6536.9657 2.1295419e+10 0.18060558 0.048654501 -30.350085 50.708241 6538.8099 1.9435279e+10 0.17915972 0.049551046 -30.464176 50.585257 6540.6541 1.7699692e+10 0.17808862 0.051163108 -30.567559 50.477739 6542.4983 1.6212124e+10 0.17631410 0.051191419 -30.670941 50.370222 6544.3425 1.5063933e+10 0.17451560 0.051922196 -30.771351 50.259731 6546.1867 1.4102264e+10 0.17244667 0.052618166 -30.870598 50.148078 6548.0309 1.3296388e+10 0.17134036 0.053676883 -30.973362 50.032287 6549.8751 1.2527496e+10 0.17002183 0.054858121 -31.084307 49.906871 6551.7194 1.1639282e+10 0.16827869 0.055488256 -31.192589 49.784589 6553.5636 1.0789738e+10 0.16637211 0.055051769 -31.291836 49.672935 6555.4078 1.0065936e+10 0.16458154 0.054510732 -31.391084 49.561281 6557.2520 9.7062973e+09 0.16228505 0.053708158 -31.486984 49.452975 6559.0962 9.5939160e+09 0.15884693 0.052376323 -31.582095 49.345456 6560.9404 9.2125771e+09 0.15556184 0.051426403 -31.683410 49.229039 6562.7846 8.6835615e+09 0.15283732 0.050133301 -31.794378 49.098773 6564.6288 7.9905671e+09 0.14991435 0.048486607 -31.898978 48.975752 6566.4731 7.3340967e+09 0.14703297 0.046915280 -31.989955 48.868235 6568.3173 6.9057603e+09 0.14451857 0.045480020 -32.080931 48.760718 6570.1615 6.5712925e+09 0.14244418 0.044850620 -32.175630 48.649477 6572.0057 6.1400549e+09 0.14057601 0.044226897 -32.270742 48.537824 6573.8499 5.8478367e+09 0.13820384 0.042975456 -32.363860 48.428165 6575.6941 5.5250251e+09 0.13630859 0.041678294 -32.454838 48.320648 6577.5383 5.1028355e+09 0.13452496 0.039374793 -32.545550 48.212866 6579.3825 4.7381051e+09 0.13228691 0.036860200 -32.632391 48.101213 6581.2268 4.3208779e+09 0.13062241 0.035527946 -32.719232 47.989560 6583.0710 4.0774164e+09 0.12911264 0.034985749 -32.818536 47.865888 6584.9152 3.9476931e+09 0.12709381 0.034016981 -32.924679 47.735623 6586.7594 3.8443965e+09 0.12482929 0.033161480 -33.019762 47.618391 6588.6036 3.7322452e+09 0.12279899 0.033178357 -33.106603 47.510872 6590.4478 3.6017899e+09 0.12045928 0.030229069 -33.193444 47.402713 6592.2920 3.4574866e+09 0.11805931 0.027789883 -33.280285 47.291062 6594.1362 3.2999425e+09 0.11560765 0.026097738 -33.367126 47.179410 6595.9804 3.1503125e+09 0.11279635 0.025725246 -33.450921 47.070803 6597.8247 3.0141996e+09 0.11077240 0.025462496 -33.533627 46.963284 6599.6689 2.8861120e+09 0.10932686 0.024969959 -33.617650 46.854449 6601.5131 2.7623624e+09 0.10852252 0.027287323 -33.704491 46.742796 6603.3573 2.6398603e+09 0.10691701 0.026451756 -33.791332 46.631142 6605.2015 2.5283806e+09 0.10584023 0.026834092 -33.874451 46.519489 6607.0457 2.4290126e+09 0.10403902 0.025616716 -33.957157 46.407836 6608.8899 2.3286394e+09 0.10082353 0.023708842 -34.039864 46.298176 6610.7341 2.2231154e+09 0.098022806 0.024704437 -34.122570 46.190659 6612.5784 2.1194369e+09 0.096752561 0.023888626 -34.205013 46.082877 6614.4226 2.0206861e+09 0.095926409 0.023649359 -34.283583 45.971224 6616.2668 1.9376172e+09 0.094689055 0.023324170 -34.362153 45.859571 6618.1110 1.8407399e+09 0.094382508 0.023854609 -34.452294 45.735902 6619.9552 1.7388380e+09 0.094014385 0.024756389 -34.548788 45.605636 6621.7994 1.6331436e+09 0.093187309 0.024824477 -34.635013 45.488403 6623.6436 1.5400383e+09 0.091820644 0.024730280 -34.713583 45.380886 6625.4878 1.4615734e+09 0.090976171 0.025979745 -34.792154 45.272728 6627.3321 1.3954813e+09 0.089249586 0.025445077 -34.870725 45.161075 6629.1763 1.3349377e+09 0.088293439 0.026077236 -34.949297 45.049422 6631.0205 1.2691346e+09 0.086833498 0.025932846 -35.027857 44.937783 6632.8647 1.2161617e+09 0.085722771 0.026136028 -35.106414 44.826149 6634.7089 1.1567315e+09 0.084448193 0.026378553 -35.183661 44.715823 6636.5531 1.1048657e+09 0.083062987 0.026334956 -35.258096 44.608306 6638.3973 1.0579761e+09 0.082114538 0.025654332 -35.332532 44.500790 6640.2415 1.0082559e+09 0.082218788 0.025241099 -35.406968 44.389551 6642.0858 9.6769395e+08 0.082112769 0.025155205 -35.481403 44.277897 6643.9300 9.2554902e+08 0.081058960 0.025333031 -35.555839 44.166243 6645.7742 8.8880242e+08 0.080099193 0.025814356 -35.630275 44.054590 6647.6184 8.5667043e+08 0.079024915 0.026763363 -35.704710 43.943198 6649.4626 8.1933836e+08 0.078003499 0.026996018 -35.779146 43.835680 6651.3068 7.8505443e+08 0.077569179 0.026719292 -35.853581 43.728161 6653.1510 7.5057151e+08 0.077317482 0.027602768 -35.928016 43.617976 6654.9952 7.2232632e+08 0.076418523 0.027612246 -36.002452 43.506322 6656.8394 6.9417963e+08 0.074912975 0.028760195 -36.075949 43.394670 6658.6837 6.6215391e+08 0.073847383 0.031273563 -36.146248 43.283018 6660.5279 6.3615334e+08 0.072920107 0.032105807 -36.216548 43.171366 6662.3721 6.1057918e+08 0.071929819 0.032835510 -36.290192 43.063056 6664.2163 5.8793307e+08 0.071004580 0.031414671 -36.364628 42.955537 6666.0605 5.6486904e+08 0.071226468 0.026920386 -36.437449 42.846404 6667.9047 5.4200057e+08 0.070758406 0.027435777 -36.507750 42.734751 6669.7489 5.2313827e+08 0.070207669 0.027586497 -36.578051 42.623097 6671.5931 5.0579441e+08 0.070165550 0.026873801 -36.648350 42.511444 6673.4374 4.8711607e+08 0.069772285 0.028113316 -36.718650 42.399791 6675.2816 4.7177198e+08 0.068292792 0.030337664 -36.786658 42.290429 6677.1258 4.5472508e+08 0.066624901 0.032179407 -36.852823 42.182912 6678.9700 4.3769877e+08 0.066114729 0.030287841 -36.919549 42.074834 6680.8142 4.2001438e+08 0.067137046 0.029617237 -36.989850 41.963180 6682.6584 3.9528092e+08 0.067825799 0.030927599 -37.060151 41.851527 6684.5026 3.7428696e+08 0.067906155 0.032679598 -37.127484 41.739874 6686.3468 3.5641685e+08 0.067127614 0.033962882 -37.193649 41.628220 6688.1911 3.4263741e+08 0.065005811 0.033829292 -37.261052 41.517804 6690.0353 3.3147891e+08 0.063473167 0.033111822 -37.331351 41.410287 6691.8795 3.1732120e+08 0.062626087 0.032793764 -37.401651 41.302770 6693.7237 3.0214135e+08 0.061987924 0.031355818 -37.468306 41.191609 6695.5679 2.9060401e+08 0.061980991 0.029755157 -37.534471 41.079955 6697.4121 2.7990807e+08 0.061572442 0.030143419 -37.598721 40.968302 6699.2563 2.6895013e+08 0.060518992 0.031353916 -37.660751 40.856649 6701.1005 2.6083062e+08 0.059050519 0.031556965 -37.722967 40.745181 6702.9448 2.5088398e+08 0.058963661 0.033631118 -37.789131 40.637664 6704.7890 2.4137153e+08 0.059189426 0.036564976 -37.855296 40.530147 6706.6332 2.2855086e+08 0.059047476 0.039548395 -37.928372 40.408376 6708.4774 2.1710289e+08 0.058751692 0.040563436 -38.005566 40.278110 6710.3216 2.1020380e+08 0.057601680 0.040559444 -38.074360 40.158154 6712.1658 2.0409874e+08 0.055761726 0.042137815 -38.136389 40.046500 6714.0100 1.9426935e+08 0.053896496 0.047304162 -38.198418 39.935407 6715.8542 1.8358353e+08 0.052490474 0.048252276 -38.260448 39.827888 6717.6984 1.7422172e+08 0.050673684 0.049831066 -38.322478 39.720370 6719.5427 1.6499903e+08 0.049147834 0.050854273 -38.384508 39.609885 6721.3869 1.6037509e+08 0.049356640 0.050420465 -38.446538 39.498231 6723.2311 1.5361751e+08 0.048113588 0.049497823 -38.508568 39.387816 6725.0753 1.4770118e+08 0.044110767 0.041528986 -38.570596 39.280299 6726.9195 1.4466860e+08 0.042539065 0.040959660 -38.632625 39.172782 6728.7637 1.3644703e+08 0.042188263 0.040710542 -38.694655 39.061621 6730.6079 1.3159838e+08 0.040567624 0.041212452 -38.756685 38.949968 6732.4521 1.2592462e+08 0.039189682 0.043823447 -38.816800 38.838314 6734.2964 1.1970693e+08 0.038439182 0.049335769 -38.874695 38.726660 6736.1406 1.1712763e+08 0.039889933 0.050886435 -38.932774 38.615191 6737.9848 1.1225128e+08 0.040879727 0.057272610 -38.994804 38.507674 6739.8290 1.0768096e+08 0.040674183 0.063841082 -39.056834 38.400157 6741.6732 1.0097853e+08 0.038835562 0.067678712 -39.122319 38.278388 6743.5174 95784675. 0.034927599 0.074537923 -39.189864 38.148122 6745.3616 93553788. 0.032897191 0.078718912 -39.252064 38.030455 6747.2058 88891423. 0.028244022 0.067290298 -39.309958 37.922938 6749.0501 85392808. 0.028084288 0.072264229 -39.367852 37.814860 6750.8943 76961212. 0.024892084 0.073531126 -39.425746 37.703207 6752.7385 73921838. 0.021863716 0.073279919 -39.483639 37.591554 6754.5827 74419585. 0.020244921 0.075276432 -39.541527 37.482880 6756.4269 70156382. 0.016965040 0.075265391 -39.599411 37.375379 6758.2711 69695599. 0.015690949 0.074278630 -39.657298 37.266637 6760.1153 64043127. 0.011971797 0.076281193 -39.715192 37.154984 6761.9595 60397394. -0.0089019871 0.078047501 -39.773086 37.043331 6763.8038 58271324. 0.014476117 0.078885604 -39.839478 36.919537 6765.6480 54334759. 0.061719572 0.079649481 -39.907023 36.794097