# # 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 = 47.365307 km # Date (UTC) = 2013-01-25T11:00:55.118 # Date (julian) = 2456317.95897127 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6500.0845 8.4481614e+10 0.043910715 0.032308691 82.887196 51.807429 6501.8468 7.7143764e+10 0.051236442 0.032840118 83.002457 51.682947 6503.6092 7.1418515e+10 0.058967534 0.033371545 83.124973 51.548155 6505.3715 6.5839145e+10 0.066918152 0.033902972 83.257758 51.398771 6507.1338 6.0081567e+10 0.075018165 0.034434399 83.377105 51.261710 6508.8962 5.5215783e+10 0.083515036 0.034965826 83.487736 51.132644 6510.6585 5.1035783e+10 0.092403419 0.035497253 83.608053 50.994695 6512.4208 4.7019064e+10 0.10157056 0.036028680 83.740838 50.845310 6514.1832 4.3238006e+10 0.11104807 0.036560107 83.859683 50.711608 6515.9455 3.9845492e+10 0.12088024 0.037091534 83.970333 50.587125 6517.7078 3.6797388e+10 0.13102188 0.037622961 84.088634 50.448620 6519.4702 3.3681692e+10 0.14128246 0.038154388 84.215890 50.293703 6521.2325 3.0674271e+10 0.15169311 0.038685815 84.329269 50.158686 6522.9948 2.8110223e+10 0.15961657 0.039177761 84.435286 50.034229 6524.7572 2.6054803e+10 0.16600915 0.039695949 84.541315 49.907528 6526.5195 2.4228871e+10 0.17038591 0.040212727 84.647357 49.778434 6528.2818 2.2634117e+10 0.17489599 0.041666066 84.751947 49.650793 6530.0442 2.1247880e+10 0.17924498 0.043890536 84.853378 49.526310 6531.8065 1.9890091e+10 0.18151095 0.046402557 84.957770 49.397385 6533.5688 1.8431873e+10 0.18238722 0.047761326 85.079492 49.242468 6535.3312 1.6907294e+10 0.18219898 0.048080636 85.194342 49.096295 6537.0935 1.5530612e+10 0.18159478 0.048729310 85.295769 48.967203 6538.8558 1.4401857e+10 0.18010703 0.049573430 85.396411 48.838897 6540.6182 1.3474015e+10 0.17907104 0.051146143 85.493211 48.714439 6542.3805 1.2639072e+10 0.17719938 0.051146699 85.590011 48.589957 6544.1428 1.1929895e+10 0.17517382 0.051760222 85.686834 48.460888 6545.9052 1.1286526e+10 0.17310544 0.052463677 85.783656 48.331796 6547.6675 1.0587706e+10 0.17211050 0.053541205 85.896574 48.185838 6549.4298 9.8426903e+09 0.17038444 0.054404321 86.012302 48.036935 6551.1922 9.1206597e+09 0.16865927 0.055303207 86.109121 47.907841 6552.9545 8.5130796e+09 0.16743394 0.055346518 86.205940 47.778747 6554.7168 8.0291025e+09 0.16553590 0.054847423 86.298818 47.649654 6556.4792 7.5948280e+09 0.16313988 0.053942678 86.391025 47.520562 6558.2415 7.1842974e+09 0.16097365 0.053033511 86.483222 47.394649 6560.0038 6.8035389e+09 0.15863269 0.052270846 86.575415 47.270191 6561.7662 6.4390451e+09 0.15555050 0.050995127 86.667615 47.143341 6563.5285 6.0981186e+09 0.15253285 0.049317005 86.759823 47.014248 6565.2908 5.7833537e+09 0.15002161 0.047988143 86.852031 46.885156 6567.0532 5.4951932e+09 0.14742655 0.046572227 86.944239 46.756064 6568.8155 5.2395606e+09 0.14449588 0.045022016 87.035624 46.626972 6570.5778 4.9947849e+09 0.14241033 0.044678147 87.123224 46.497878 6572.3402 4.7660427e+09 0.14029297 0.044035346 87.210823 46.368835 6574.1025 4.5422884e+09 0.13785035 0.042805771 87.298423 46.244345 6575.8648 4.3176368e+09 0.13604650 0.041507000 87.386023 46.119863 6577.6272 4.1086024e+09 0.13418693 0.039235231 87.473619 45.991506 6579.3895 3.9128274e+09 0.13185205 0.036856367 87.561216 45.862414 6581.1518 3.7320707e+09 0.12976094 0.035550629 87.648803 45.733339 6582.9142 3.5706573e+09 0.12821021 0.035045022 87.736385 45.604273 6584.6765 3.4080223e+09 0.12635174 0.034146991 87.821661 45.477508 6586.4388 3.2501937e+09 0.12442455 0.033165623 87.904649 45.353025 6588.2012 3.0965375e+09 0.12296858 0.033312747 87.987638 45.227007 6589.9635 2.9506887e+09 0.12110853 0.031134461 88.070626 45.097915 6591.7258 2.8170548e+09 0.11870372 0.028382880 88.153614 44.968823 6593.4882 2.6847466e+09 0.11664712 0.026648364 88.236602 44.839729 6595.2505 2.5608716e+09 0.11438528 0.025649550 88.319570 44.710667 6597.0128 2.4527459e+09 0.11200712 0.025718674 88.390780 44.599897 6598.7752 2.3698462e+09 0.10997662 0.025037068 88.461911 44.489250 6600.5375 2.2922792e+09 0.10943439 0.026094898 88.538550 44.372176 6602.2998 2.2136125e+09 0.10836405 0.027260758 88.621538 44.247694 6604.0622 2.1285880e+09 0.10661094 0.026108196 88.703163 44.121849 6605.8245 2.0438332e+09 0.10596293 0.027356743 88.781540 43.992757 6607.5868 1.9640690e+09 0.10386059 0.024548198 88.859915 43.863668 6609.3492 1.8898459e+09 0.10089623 0.023809654 88.938276 43.734600 6611.1115 1.8132686e+09 0.098256419 0.024887344 89.016638 43.605531 6612.8738 1.7325590e+09 0.097517066 0.023667848 89.095017 43.476440 6614.6362 1.6498172e+09 0.096774420 0.023502190 89.173397 43.347348 6616.3985 1.5677822e+09 0.095743139 0.023344845 89.251775 43.221890 6618.1608 1.4930305e+09 0.095529753 0.023892254 89.330151 43.097407 6619.9232 1.4274612e+09 0.095182976 0.024748662 89.399147 42.981491 6621.6855 1.3779411e+09 0.094278497 0.024862231 89.462373 42.870844 6623.4478 1.3359726e+09 0.092901585 0.024657746 89.526942 42.758562 6625.2102 1.2976137e+09 0.091923084 0.025648412 89.605322 42.629470 6626.9725 1.2490550e+09 0.090136577 0.025351831 89.683702 42.500378 6628.7348 1.1924614e+09 0.089406620 0.026001450 89.757839 42.371284 6630.4972 1.1385604e+09 0.088230382 0.025929527 89.831604 42.242191 6632.2595 1.0817389e+09 0.087040118 0.026063463 89.905372 42.116558 6634.0218 1.0249942e+09 0.085887367 0.026328436 89.979141 41.992076 6635.7842 9.7521655e+08 0.084793371 0.026517387 90.046777 41.875641 6637.5465 9.3691368e+08 0.083843080 0.025893746 90.110003 41.764994 6639.3088 9.0591032e+08 0.083097133 0.025517686 90.173531 41.653406 6641.0712 8.7402982e+08 0.083532233 0.025148542 90.242675 41.524339 6642.8335 8.3670782e+08 0.083174723 0.025185805 90.311819 41.395271 6644.5958 7.9350555e+08 0.082291835 0.025408004 90.385041 41.266181 6646.3582 7.5743848e+08 0.081305857 0.026105554 90.458809 41.137087 6648.1205 7.2743936e+08 0.080454095 0.027044958 90.522247 41.023957 6649.8828 7.0157210e+08 0.079835889 0.026416725 90.581520 40.917263 6651.6452 6.8413867e+08 0.079399423 0.026978604 90.642594 40.806489 6653.4075 6.6294368e+08 0.079153387 0.027733724 90.711751 40.677395 6655.1698 6.4058963e+08 0.078223320 0.027680398 90.780908 40.548301 6656.9322 6.1558785e+08 0.076813544 0.028841588 90.850066 40.419209 6658.6945 5.8948063e+08 0.075775828 0.031292816 90.919223 40.290117 6660.4568 5.6179911e+08 0.074943949 0.032041251 90.988381 40.164917 6662.2192 5.3623174e+08 0.073977970 0.032921297 91.057538 40.040434 6663.9815 5.1623889e+08 0.072929982 0.032211211 91.120024 39.925293 6665.7438 5.0042916e+08 0.073177398 0.027328306 91.179301 39.814645 6667.5062 4.8548163e+08 0.072751091 0.027289387 91.239339 39.701329 6669.2685 4.6833288e+08 0.071892158 0.028079917 91.303885 39.572236 6671.0309 4.4906284e+08 0.072079834 0.026865788 91.368431 39.443142 6672.7932 4.2515075e+08 0.071943806 0.027339343 91.432965 39.318572 6674.5555 4.0546005e+08 0.070967777 0.029423406 91.497498 39.194114 6676.3179 3.8873915e+08 0.069127701 0.031918577 91.557792 39.080791 6678.0802 3.7813522e+08 0.068446989 0.030882983 91.617068 38.970144 6679.8425 3.6905497e+08 0.068527888 0.029571553 91.677797 38.854412 6681.6049 3.5535006e+08 0.069213076 0.030121391 91.742343 38.725320 6683.3672 3.4027720e+08 0.069627172 0.031726694 91.806889 38.596720 6685.1295 3.2333316e+08 0.069515369 0.032841640 91.871435 38.472238 6686.8919 3.0723104e+08 0.068179091 0.034279977 91.935981 38.347756 6688.6542 2.9636910e+08 0.065971492 0.033936198 91.988173 38.236246 6690.4165 2.8790577e+08 0.065015772 0.033068130 92.039545 38.125598 6692.1789 2.8551673e+08 0.064216924 0.032557639 92.096280 38.007440 6693.9412 2.8058035e+08 0.063460409 0.031281204 92.160826 37.878346 6695.7035 2.6800143e+08 0.063565839 0.029730246 92.225372 37.750351 6697.4659 2.5387839e+08 0.063153910 0.030150220 92.289918 37.625869 6699.2282 2.3831730e+08 0.062164145 0.031379882 92.353553 37.502343 6700.9905 2.2712387e+08 0.060761835 0.031402414 92.404927 37.391696 6702.7529 2.2170074e+08 0.060458003 0.033477886 92.456301 37.281049 6704.5152 2.1487287e+08 0.060667696 0.036430537 92.512279 37.162964 6706.2775 2.1019559e+08 0.060552765 0.038929405 92.572202 37.038506 6708.0399 2.0605193e+08 0.060297083 0.040086976 92.632129 36.912337 6709.8022 1.9818067e+08 0.059393625 0.040622314 92.692064 36.783244 6711.5645 1.9142934e+08 0.057727952 0.041334502 92.750285 36.658636 6713.3269 1.7953171e+08 0.056162804 0.044868783 92.801659 36.551940 6715.0892 1.7247449e+08 0.054623062 0.047469806 92.853033 36.445244 6716.8515 1.6735433e+08 0.052918746 0.049655572 92.910140 36.323550 6718.6139 1.6107347e+08 0.051044312 0.050768445 92.970074 36.194458 6720.3762 1.5564600e+08 0.050846989 0.050376178 93.030009 36.065365 6722.1385 1.4971327e+08 0.050693780 0.050433956 93.089943 35.936271 6723.9009 1.4682024e+08 0.048925520 0.049871366 93.147038 35.814608 6725.6632 1.4169057e+08 0.045308285 0.041161758 93.198412 35.707913 6727.4255 1.3925439e+08 0.044294533 0.040393470 93.249786 35.601219 6729.1879 1.3416501e+08 0.043862649 0.040920217 93.304324 35.476579 6730.9502 1.3128398e+08 0.042385170 0.041681727 93.359647 35.347485 6732.7125 1.2649986e+08 0.041364909 0.043871382 93.414973 35.221306 6734.4749 1.1740434e+08 0.040980199 0.049325029 93.470300 35.096823 6736.2372 1.1431275e+08 0.042451595 0.051251712 93.523794 34.978748 6737.9995 1.1037215e+08 0.043491955 0.057319569 93.575165 34.868101 6739.7619 1.0972373e+08 0.043416508 0.063758918 93.626536 34.757454 6741.5242 1.0937874e+08 0.041931210 0.067253709 93.681586 34.633927 6743.2865 1.0412684e+08 0.038556491 0.072980315 93.736902 34.509470 6745.0489 96227730. 0.036070016 0.078587425 93.792226 34.384994 6746.8112 89323813. 0.032234002 0.069556292 93.847552 34.260511 6748.5735 84210704. 0.031608718 0.070034224 93.902877 34.133290 6750.3359 84485214. 0.028953806 0.072577620 93.958200 34.004198 6752.0982 83557890. 0.026328895 0.074020852 94.010163 33.884629 6753.8605 79008542. 0.025420790 0.075762101 94.057585 33.777933 6755.6229 76442596. 0.023461287 0.074332262 94.105006 33.671237 6757.3852 76494425. 0.021935395 0.075571106 94.155375 33.544503 6759.1475 78976507. 0.022756927 0.075855554 94.206090 33.415410 6760.9099 77310252. 0.022858056 0.077796327 94.260150 33.289663 6762.6722 76998627. 0.027322010 0.076966546 94.315473 33.165181 6764.4345 70192496. 0.028989718 0.079504102 94.370798 33.040699 6766.1969 62934622. 0.029044405 0.080159043 94.426124 32.916217 6767.9592 58996399. 0.024999863 0.080901720 94.476853 32.797099 6769.7215 54069511. 0.017270436 0.086204276 94.520322 32.686452 6771.4839 54352387. -0.0050853428 0.090478709 94.563791 32.575805 6773.2462 52583804. 0.0075033826 0.094753143 94.613463 32.453320 6775.0085 50200881. 0.040007147 0.099027576 94.664168 32.328862