# # 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 = 40.744414 km # Date (UTC) = 2016-01-03T09:53:38.846 # Date (julian) = 2457390.91225516 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6490.0269 2.3349128e+11 0.015409456 0.029275843 -27.689127 49.990438 6491.8201 1.4848646e+11 0.022090156 0.029816568 -27.784132 49.902471 6493.6132 1.1424545e+11 0.027634231 0.030357293 -27.873670 49.819565 6495.4064 9.6281578e+10 0.032435871 0.030898018 -27.958105 49.741385 6497.1996 8.4194622e+10 0.036860050 0.031438743 -28.042539 49.663205 6498.9927 7.3756577e+10 0.041056275 0.031979468 -28.125975 49.586024 6500.7859 6.5967492e+10 0.045337677 0.032520193 -28.207282 49.510971 6502.5791 5.9949388e+10 0.050018949 0.033060918 -28.288590 49.435917 6504.3722 5.5326453e+10 0.055406345 0.033601643 -28.371134 49.359294 6506.1654 5.0775821e+10 0.061476744 0.034142369 -28.462607 49.271339 6507.9586 4.6312818e+10 0.068274169 0.034683094 -28.554079 49.183385 6509.7517 4.2323123e+10 0.076091968 0.035223819 -28.641839 49.099035 6511.5449 3.9027682e+10 0.085199885 0.035764544 -28.720019 49.023983 6513.3381 3.6323737e+10 0.095651315 0.036305269 -28.798199 48.948931 6515.1312 3.4149683e+10 0.10748387 0.036845994 -28.876635 48.873622 6516.9244 3.2061464e+10 0.12027955 0.037386719 -28.957952 48.795432 6518.7176 3.0318814e+10 0.13401554 0.037927444 -29.039270 48.717241 6520.5107 2.8658265e+10 0.14831079 0.038468169 -29.120588 48.639051 6522.3039 2.6958089e+10 0.16096676 0.038996833 -29.204663 48.552227 6524.0971 2.5109037e+10 0.16766629 0.039461448 -29.289100 48.464273 6525.8902 2.3212143e+10 0.17163038 0.039680613 -29.373274 48.376728 6527.6834 2.1486935e+10 0.17535103 0.041212638 -29.451454 48.298548 6529.4766 2.0007694e+10 0.17722550 0.042994939 -29.529635 48.220367 6531.2698 1.8771715e+10 0.17822797 0.045621304 -29.607815 48.142187 6533.0629 1.7530310e+10 0.17983691 0.047546326 -29.683355 48.066646 6534.8561 1.6423946e+10 0.17994449 0.048184038 -29.758408 47.991593 6536.6493 1.5381776e+10 0.17867178 0.048371406 -29.833460 47.916540 6538.4424 1.4298243e+10 0.17813090 0.049372118 -29.914578 47.833148 6540.2356 1.3156875e+10 0.17767103 0.050965401 -29.999014 47.745193 6542.0288 1.2027407e+10 0.17570317 0.051013157 -30.083450 47.657239 6543.8219 1.1005798e+10 0.17390697 0.051597612 -30.160350 47.577135 6545.6151 1.0187347e+10 0.17252597 0.052461078 -30.235413 47.498944 6547.4083 9.5015565e+09 0.17144774 0.053442620 -30.310476 47.420754 6549.2014 8.9026733e+09 0.16953803 0.054171555 -30.383635 47.342570 6550.9946 8.3906596e+09 0.16785690 0.055234399 -30.455561 47.264390 6552.7878 7.9246469e+09 0.16669858 0.055388486 -30.527487 47.186209 6554.5809 7.4928215e+09 0.16454244 0.054844571 -30.604528 47.105471 6556.3741 7.0297265e+09 0.16199256 0.053958125 -30.688964 47.021036 6558.1673 6.5682326e+09 0.15966375 0.053096768 -30.773399 46.936601 6559.9604 6.1226876e+09 0.15694147 0.052278774 -30.848976 46.855710 6561.7536 5.7353608e+09 0.15351593 0.051001319 -30.917775 46.777530 6563.5468 5.4222403e+09 0.15030475 0.049295872 -30.986574 46.699349 6565.3399 5.1431363e+09 0.14795101 0.047932385 -31.056530 46.621165 6567.1331 4.8932843e+09 0.14594465 0.046504637 -31.128465 46.542975 6568.9263 4.6720243e+09 0.14380143 0.044920190 -31.200400 46.464785 6570.7194 4.4311236e+09 0.14242477 0.044619489 -31.273272 46.384920 6572.5126 4.1791836e+09 0.14084076 0.043936593 -31.350671 46.296966 6574.3058 3.9202817e+09 0.13868361 0.042708138 -31.428071 46.209012 6576.0990 3.6609098e+09 0.13665278 0.041257496 -31.502640 46.124274 6577.8921 3.4425716e+09 0.13463760 0.038819066 -31.571439 46.046094 6579.6853 3.2470414e+09 0.13225511 0.036693763 -31.640238 45.967914 6581.4785 3.0748444e+09 0.12989114 0.035451725 -31.709036 45.889734 6583.2716 2.9262033e+09 0.12785750 0.034884182 -31.777835 45.811554 6585.0648 2.7895175e+09 0.12574827 0.033918972 -31.846633 45.733374 6586.8580 2.6652686e+09 0.12337957 0.033160205 -31.915431 45.655194 6588.6511 2.5315920e+09 0.12121806 0.033162484 -31.992259 45.567889 6590.4443 2.3891887e+09 0.11877537 0.030235603 -32.069659 45.479934 6592.2375 2.2414679e+09 0.11628098 0.027842874 -32.145989 45.393156 6594.0306 2.1117919e+09 0.11361897 0.026155707 -32.211669 45.318092 6595.8238 2.0066835e+09 0.11059251 0.025709002 -32.277349 45.243029 6597.6170 1.9140435e+09 0.10810926 0.025528035 -32.343028 45.167966 6599.4101 1.8291829e+09 0.10599654 0.024954398 -32.408701 45.090116 6601.2033 1.7495767e+09 0.10506754 0.027141436 -32.474374 45.011936 6602.9965 1.6738460e+09 0.10364737 0.026666282 -32.540046 44.933756 6604.7896 1.5962813e+09 0.10266422 0.026540140 -32.611433 44.848772 6606.5828 1.5158296e+09 0.10190179 0.026456671 -32.685314 44.760818 6608.3760 1.4279145e+09 0.099829912 0.023722431 -32.759195 44.672864 6610.1691 1.3542420e+09 0.097513712 0.024164595 -32.826067 44.593254 6611.9623 1.2961254e+09 0.095537884 0.024344783 -32.891738 44.515074 6613.7555 1.2426116e+09 0.094733557 0.023850779 -32.957409 44.436894 6615.5487 1.1858195e+09 0.093552449 0.023268412 -33.026158 44.352302 6617.3418 1.1237862e+09 0.092743985 0.023552578 -33.096522 44.264348 6619.1350 1.0568896e+09 0.092206376 0.024558485 -33.166885 44.176394 6620.9282 9.9750704e+08 0.091607674 0.025066295 -33.230894 44.096383 6622.7213 9.5102213e+08 0.090411061 0.024566000 -33.293446 44.018193 6624.5145 9.0716067e+08 0.088964793 0.025137715 -33.355999 43.940002 6626.3077 8.6755485e+08 0.087665554 0.026198916 -33.418547 43.861818 6628.1008 8.3040658e+08 0.086299248 0.025744032 -33.481091 43.783638 6629.8940 7.9870692e+08 0.085030773 0.025947468 -33.543635 43.705458 6631.6872 7.6407110e+08 0.083384402 0.026000568 -33.609451 43.623187 6633.4803 7.2982913e+08 0.082129779 0.026236114 -33.679814 43.535233 6635.2735 6.9227224e+08 0.080873013 0.026440803 -33.750176 43.447279 6637.0667 6.5274421e+08 0.079594154 0.026128759 -33.814232 43.364956 6638.8598 6.2238158e+08 0.078536695 0.025634182 -33.873650 43.286776 6640.6530 5.9027411e+08 0.078990118 0.025190756 -33.933068 43.208596 6642.4462 5.6351196e+08 0.078816070 0.025169954 -33.996627 43.126717 6644.2393 5.3964697e+08 0.077983082 0.025369474 -34.066990 43.038763 6646.0325 5.1145593e+08 0.077384162 0.025936975 -34.137352 42.950809 6647.8257 4.8723994e+08 0.076856534 0.026872503 -34.201851 42.869764 6649.6188 4.6255136e+08 0.076323440 0.026780640 -34.261277 42.794701 6651.4120 4.3963062e+08 0.076157558 0.026799914 -34.320702 42.719638 6653.2052 4.1805822e+08 0.076055478 0.027630420 -34.382641 42.640208 6654.9983 3.9170452e+08 0.075331676 0.027610919 -34.449485 42.552254 6656.7915 3.7130147e+08 0.073907425 0.028718128 -34.516330 42.464300 6658.5847 3.5175296e+08 0.072916110 0.031098031 -34.577936 42.381197 6660.3779 3.3365730e+08 0.072069138 0.031969449 -34.634226 42.303017 6662.1710 3.1517437e+08 0.071128022 0.032948318 -34.690515 42.224837 6663.9642 2.9707450e+08 0.070205348 0.032216012 -34.749956 42.143739 6665.7574 2.8057901e+08 0.070610545 0.027306172 -34.816801 42.055785 6667.5505 2.6467593e+08 0.070366992 0.027305676 -34.883646 41.967830 6669.3437 2.5182996e+08 0.069689207 0.028002704 -34.945676 41.884334 6671.1369 2.3943333e+08 0.069967292 0.026867299 -35.001966 41.806154 6672.9300 2.2933467e+08 0.069860581 0.027418662 -35.058256 41.727974 6674.7232 2.2161201e+08 0.068781403 0.029564857 -35.116364 41.647269 6676.5164 2.1386189e+08 0.066968839 0.032046519 -35.179691 41.559315 6678.3095 2.0662103e+08 0.066422125 0.030729584 -35.243018 41.471361 6680.1027 2.0347827e+08 0.066755016 0.029463594 -35.303420 41.387469 6681.8959 1.9388709e+08 0.067515031 0.030344657 -35.359717 41.309278 6683.6890 1.8216725e+08 0.068035602 0.032198376 -35.416015 41.231088 6685.4822 1.6957460e+08 0.068085504 0.033214168 -35.473849 41.150762 6687.2754 1.6320701e+08 0.066564147 0.034189320 -35.537177 41.062807 6689.0685 1.6165490e+08 0.064155654 0.033954324 -35.600504 40.974853 6690.8617 1.6009619e+08 0.063386572 0.033017111 -35.663831 40.886898 6692.6549 1.5444067e+08 0.062660136 0.032004856 -35.727158 40.798945 6694.4480 1.4532511e+08 0.061995122 0.030633064 -35.790485 40.710991 6696.2412 1.3854651e+08 0.061725984 0.029776006 -35.848385 40.628255 6698.0344 1.3357277e+08 0.060845520 0.030265013 -35.901548 40.550075 6699.8276 1.3312366e+08 0.059156247 0.030826838 -35.954711 40.471895 6701.6207 1.2906921e+08 0.057313017 0.032320219 -36.010108 40.391612 6703.4139 1.2723694e+08 0.057038284 0.034710915 -36.069916 40.307177 6705.2071 1.1843607e+08 0.056799263 0.037036711 -36.129724 40.222742 6707.0002 1.1421316e+08 0.055980581 0.040186794 -36.189533 40.136569 6708.7934 1.1017864e+08 0.055031661 0.040907555 -36.249343 40.048615 6710.5866 1.0691421e+08 0.053215339 0.040611307 -36.309153 39.960660 6712.3797 1.0545627e+08 0.050946095 0.042534988 -36.364637 39.879066 6714.1729 99147802. 0.048497304 0.047316407 -36.417806 39.800876 6715.9661 95291384. 0.046488214 0.048366652 -36.470974 39.722685 6717.7592 86636155. 0.043884650 0.049827306 -36.527158 39.640061 6719.5524 85484688. 0.041906640 0.050845017 -36.586966 39.552107 6721.3456 80571319. 0.041415761 0.050408021 -36.646774 39.464153 6723.1387 78170640. 0.039697934 0.049446320 -36.704431 39.376200 6724.9319 75005291. 0.035116541 0.042144652 -36.760723 39.288246 6726.7251 70773676. 0.032315133 0.040957907 -36.817015 39.200292 6728.5182 72708278. 0.031186436 0.040362618 -36.876012 39.112338 6730.3114 68226425. 0.027141546 0.040805883 -36.935820 39.024384 6732.1046 67037172. 0.020575643 0.043759462 -36.995628 38.936430 6733.8977 62326619. -0.014947125 0.048798433 -37.052176 38.848475 6735.6909 55327079. 0.012375167 0.050026889 -37.108467 38.760521 6737.4841 50411245. 0.084886791 0.055677621 -37.164758 38.672864