# # 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 = 46.862767 km # Date (UTC) = 2014-01-13T09:05:19.960 # Date (julian) = 2456670.87870324 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6498.3276 6.0361259e+10 0.034249350 0.031778915 -15.794416 50.935171 6500.0074 5.5724949e+10 0.039975880 0.032285448 -15.880983 50.849016 6501.6872 5.1933742e+10 0.045943707 0.032791981 -15.966671 50.763328 6503.3670 4.8908355e+10 0.052288834 0.033298515 -16.052359 50.677639 6505.0468 4.6268461e+10 0.059036684 0.033805048 -16.138047 50.594952 6506.7265 4.4145712e+10 0.066328104 0.034311581 -16.223735 50.512560 6508.4063 4.2047052e+10 0.074020187 0.034818114 -16.309424 50.430167 6510.0861 3.9838553e+10 0.082022404 0.035324647 -16.405844 50.334154 6511.7659 3.7512758e+10 0.090305891 0.035831180 -16.503775 50.236224 6513.4457 3.5174091e+10 0.098908023 0.036337714 -16.598993 50.141737 6515.1254 3.3139267e+10 0.10799650 0.036844247 -16.684681 50.059345 6516.8052 3.1517265e+10 0.11765905 0.037350780 -16.770370 49.976952 6518.4850 3.0024052e+10 0.12771164 0.037857313 -16.857647 49.891648 6520.1648 2.8392828e+10 0.13794148 0.038363846 -16.951811 49.793717 6521.8446 2.6680900e+10 0.14832362 0.038870380 -17.045976 49.695786 6523.5243 2.5006194e+10 0.15450139 0.039309070 -17.133872 49.604374 6525.2041 2.3585605e+10 0.16093747 0.039758919 -17.216265 49.518685 6526.8839 2.2397602e+10 0.16622398 0.040594756 -17.298657 49.432997 6528.5637 2.1274649e+10 0.16986803 0.041889654 -17.385038 49.343085 6530.2435 2.0064752e+10 0.17343773 0.044169540 -17.475436 49.248920 6531.9232 1.8782755e+10 0.17530810 0.046572470 -17.565835 49.154755 6533.6030 1.7605830e+10 0.17520398 0.047775854 -17.646702 49.067739 6535.2828 1.6606355e+10 0.17497993 0.048101618 -17.725799 48.982052 6536.9626 1.5740225e+10 0.17451443 0.048651749 -17.804895 48.896364 6538.6424 1.4964416e+10 0.17352374 0.049469478 -17.883992 48.813342 6540.3221 1.4270088e+10 0.17318739 0.051006291 -17.963089 48.730950 6542.0019 1.3635510e+10 0.17150392 0.051002968 -18.042186 48.648557 6543.6817 1.2965736e+10 0.16995733 0.051560809 -18.130039 48.554125 6545.3615 1.2209537e+10 0.16899951 0.052458805 -18.220437 48.456193 6547.0413 1.1424760e+10 0.16801488 0.053303056 -18.309086 48.359727 6548.7210 1.0718949e+10 0.16642553 0.053882974 -18.384899 48.274026 6550.4008 1.0147196e+10 0.16578411 0.055085722 -18.460712 48.188326 6552.0806 9.6718515e+09 0.16494763 0.055566479 -18.536524 48.102627 6553.7604 9.2512356e+09 0.16323198 0.054952833 -18.612325 48.016938 6555.4402 8.8528872e+09 0.16206379 0.054483523 -18.688126 47.931249 6557.1199 8.4495591e+09 0.16072550 0.053790927 -18.763927 47.845730 6558.7997 8.0603188e+09 0.15857913 0.052557843 -18.839728 47.763338 6560.4795 7.7249987e+09 0.15670521 0.051841977 -18.915528 47.680946 6562.1593 7.4072401e+09 0.15467260 0.050728341 -18.991453 47.598281 6563.8391 7.0789537e+09 0.15199448 0.048957766 -19.074318 47.500350 6565.5188 6.7047958e+09 0.15028668 0.047729246 -19.157183 47.402419 6567.1986 6.3162174e+09 0.14886951 0.046449248 -19.237487 47.308928 6568.8784 5.9800111e+09 0.14724992 0.044964202 -19.313288 47.223240 6570.5582 5.7037682e+09 0.14648271 0.044686291 -19.389089 47.137553 6572.2380 5.4654620e+09 0.14538146 0.044093881 -19.462726 47.051865 6573.9177 5.2389396e+09 0.14357252 0.042921016 -19.531936 46.966176 6575.5975 5.0296001e+09 0.14222447 0.041775206 -19.601145 46.880487 6577.2773 4.8313860e+09 0.14062347 0.039784799 -19.674371 46.792305 6578.9571 4.6158941e+09 0.13844132 0.037138272 -19.757236 46.698140 6580.6369 4.3844896e+09 0.13699137 0.035932202 -19.840102 46.603976 6582.3166 4.1508177e+09 0.13571699 0.035207628 -19.914238 46.515230 6583.9964 3.9413479e+09 0.13403628 0.034517323 -19.983448 46.429542 6585.6762 3.7740791e+09 0.13259657 0.033430166 -20.052657 46.343855 6587.3560 3.6135023e+09 0.13132128 0.033237241 -20.123860 46.258166 6589.0358 3.4684801e+09 0.12958175 0.032975031 -20.196365 46.172477 6590.7155 3.3314627e+09 0.12759858 0.029731049 -20.268871 46.086788 6592.3953 3.2059972e+09 0.12564779 0.027689550 -20.337614 46.001100 6594.0751 3.0993055e+09 0.12338495 0.026131298 -20.403529 45.915413 6595.7549 2.9949036e+09 0.12085043 0.025701854 -20.469443 45.829725 6597.4347 2.8790114e+09 0.11885011 0.025585565 -20.542429 45.737469 6599.1144 2.7418946e+09 0.11707327 0.024936613 -20.621527 45.639537 6600.7942 2.5873132e+09 0.11683750 0.026622645 -20.700625 45.541604 6602.4740 2.4569278e+09 0.11588113 0.027112141 -20.768102 45.454466 6604.1538 2.3513217e+09 0.11448809 0.026162586 -20.834016 45.368778 6605.8336 2.2633675e+09 0.11421641 0.027364334 -20.899930 45.283091 6607.5133 2.1785136e+09 0.11282515 0.024693342 -20.968637 45.200195 6609.1931 2.0884448e+09 0.11051464 0.023763297 -21.037847 45.117802 6610.8729 2.0083513e+09 0.10827644 0.024837015 -21.107057 45.035410 6612.5527 1.9362540e+09 0.10734736 0.023907811 -21.173595 44.950327 6614.2325 1.8743766e+09 0.10643841 0.023780337 -21.239518 44.864625 6615.9122 1.8147804e+09 0.10511153 0.023279599 -21.305442 44.778924 6617.5920 1.7457973e+09 0.10455818 0.023635531 -21.375761 44.683694 6619.2718 1.6647068e+09 0.10400408 0.024591495 -21.447327 44.585763 6620.9516 1.5758795e+09 0.10346749 0.025073843 -21.518190 44.489354 6622.6314 1.4999688e+09 0.10241671 0.024589946 -21.584103 44.403666 6624.3111 1.4397914e+09 0.10092174 0.025028861 -21.650017 44.317978 6625.9909 1.3874989e+09 0.099913564 0.026580068 -21.715634 44.232290 6627.6707 1.3376524e+09 0.098222670 0.025575891 -21.778253 44.146602 6629.3505 1.2828038e+09 0.097109069 0.026045737 -21.840871 44.060913 6631.0303 1.2384535e+09 0.095463256 0.025933840 -21.903489 43.975224 6632.7100 1.1969229e+09 0.094203865 0.026117485 -21.966108 43.889537 6634.3898 1.1618231e+09 0.092652436 0.026355278 -22.028726 43.803849 6636.0696 1.1245077e+09 0.091092735 0.026522725 -22.091536 43.717899 6637.7494 1.0787208e+09 0.090041914 0.025794389 -22.163102 43.619967 6639.4292 1.0258734e+09 0.089301559 0.025474684 -22.234667 43.522035 6641.1089 9.7502451e+08 0.089617386 0.025148670 -22.301745 43.428591 6642.7887 9.3588140e+08 0.089226301 0.025183972 -22.361067 43.342903 6644.4685 9.0281720e+08 0.088348543 0.025394241 -22.420390 43.257215 6646.1483 8.7683055e+08 0.087493745 0.025996901 -22.480807 43.172622 6647.8281 8.4423272e+08 0.086815949 0.026873756 -22.543426 43.090229 6649.5078 8.1426600e+08 0.086033801 0.026933658 -22.606044 43.007837 6651.1876 7.8578913e+08 0.085678416 0.026627948 -22.667680 42.924462 6652.8674 7.6472700e+08 0.085334985 0.027489177 -22.727003 42.838774 6654.5472 7.4769276e+08 0.084325937 0.027803123 -22.786325 42.753085 6656.2270 7.2851725e+08 0.082697043 0.028222617 -22.847884 42.664167 6657.9067 7.0248682e+08 0.081566342 0.029952898 -22.915682 42.566236 6659.5865 6.7157867e+08 0.080330697 0.031712250 -22.983481 42.468306 6661.2663 6.4274643e+08 0.079168997 0.032670581 -23.046119 42.377828 6662.9461 6.1692290e+08 0.078239633 0.032513466 -23.105442 42.292139 6664.6259 5.9601926e+08 0.077408461 0.029916102 -23.164765 42.206450 6666.3056 5.7426082e+08 0.077200066 0.026968152 -23.222194 42.120762 6667.9854 5.5687399e+08 0.076466083 0.027465419 -23.278221 42.035074 6669.6652 5.4219613e+08 0.075626462 0.027672499 -23.334248 41.949387 6671.3450 5.2684057e+08 0.075372380 0.026870265 -23.396635 41.857084 6673.0248 5.0994361e+08 0.074915231 0.027496243 -23.464434 41.759153 6674.7045 4.8460581e+08 0.073674786 0.029549114 -23.532233 41.661222 6676.3843 4.6387688e+08 0.071712619 0.031961414 -23.589615 41.574119 6678.0641 4.4447433e+08 0.071018818 0.030893743 -23.645650 41.488418 6679.7439 4.3182489e+08 0.070977834 0.029653065 -23.701684 41.402716 6681.4237 4.1857490e+08 0.071673334 0.029982381 -23.757712 41.319833 6683.1034 4.0687843e+08 0.072175051 0.031340169 -23.813739 41.237441 6684.7832 3.9866354e+08 0.072050185 0.032693837 -23.869766 41.155048 6686.4630 3.8716508e+08 0.071110892 0.034030463 -23.932336 41.059955 6688.1428 3.7669084e+08 0.069187236 0.033818148 -23.996369 40.962024 6689.8226 3.5653962e+08 0.067771144 0.033275591 -24.059101 40.866081 6691.5023 3.4424288e+08 0.067016625 0.032882745 -24.115127 40.780393 6693.1821 3.3084589e+08 0.066488930 0.031541612 -24.171154 40.694704 6694.8619 3.1932001e+08 0.066106335 0.030053034 -24.226759 40.609015 6696.5417 3.1006343e+08 0.065808211 0.029900841 -24.279490 40.523328 6698.2215 2.9903194e+08 0.065138091 0.030521791 -24.332221 40.437640 6699.9012 2.9053938e+08 0.063939864 0.030758849 -24.386013 40.350803 6701.5810 2.8339964e+08 0.062499498 0.032261961 -24.450045 40.252871 6703.2608 2.7238380e+08 0.062676000 0.034327829 -24.514077 40.154939 6704.9406 2.6403934e+08 0.062843970 0.036639426 -24.573148 40.062382 6706.6204 2.5430312e+08 0.062615100 0.039526085 -24.625879 39.976694 6708.3001 2.4408835e+08 0.062373563 0.040370415 -24.678610 39.891007 6709.9799 2.3929905e+08 0.061412435 0.040509269 -24.734391 39.801888 6711.6597 2.3016173e+08 0.059763760 0.041442785 -24.794658 39.707723 6713.3395 2.2449389e+08 0.058171373 0.044914434 -24.854924 39.613557 6715.0193 2.1505754e+08 0.056736313 0.047398282 -24.909540 39.525749 6716.6990 2.0520210e+08 0.055210890 0.049430975 -24.962271 39.440062 6718.3788 1.9723757e+08 0.053560243 0.050402390 -25.015002 39.354374 6720.0586 1.8973291e+08 0.053034848 0.050412977 -25.067733 39.268686 6721.7384 1.8467468e+08 0.053129785 0.050526375 -25.120464 39.182997 6723.4182 1.8004276e+08 0.051780183 0.049602156 -25.173195 39.097308 6725.0979 1.7483633e+08 0.048021014 0.041514845 -25.228493 39.003279 6726.7777 1.6962068e+08 0.046591728 0.040958382 -25.284992 38.905348 6728.4575 1.6560697e+08 0.046216042 0.040276520 -25.341391 38.807828 6730.1373 1.5937473e+08 0.044849960 0.040567123 -25.394122 38.725435 6731.8171 1.5379723e+08 0.043327347 0.043376114 -25.446853 38.643043 6733.4968 1.4756454e+08 0.042336483 0.046621767 -25.499586 38.560644 6735.1766 1.3940135e+08 0.042646467 0.049480922 -25.556054 38.462840 6736.8564 1.3198149e+08 0.043669827 0.053592655 -25.612553 38.364908 6738.5362 1.2805308e+08 0.044029399 0.060272977 -25.666670 38.271104 6740.2160 1.2445042e+08 0.043255547 0.064419282 -25.716105 38.185417 6741.8957 1.2190271e+08 0.041143856 0.068313378 -25.765541 38.099729 6743.5755 1.1822504e+08 0.037137088 0.074929842 -25.817116 38.010332 6745.2553 1.1205535e+08 0.034908035 0.078674210 -25.873615 37.912400 6746.9351 1.1045102e+08 0.030252510 0.068115998 -25.930115 37.814468 6748.6149 1.0783899e+08 0.029805500 0.070251667 -25.986614 37.718977 6750.2946 98789304. 0.026508941 0.072507231 -26.043112 37.624813 6751.9744 94998835. 0.023466476 0.074123658 -26.099608 37.530651 6753.6542 89823623. 0.022099357 0.075094380 -26.149095 37.444901 6755.3340 88682901. 0.020051205 0.074458919 -26.198531 37.359213 6757.0138 85441021. 0.017332482 0.076698318 -26.247966 37.273525 6758.6935 76891307. 0.017037782 0.075171891 -26.300563 37.176097 6760.3733 73558202. 0.016323275 0.076773163 -26.353295 37.078165 6762.0531 71989717. 0.018604443 0.077965201 -26.405025 36.983954 6763.7329 72231739. 0.019005132 0.078669745 -26.454461 36.898267 6765.4127 69327951. 0.014884940 0.079606524 -26.503897 36.812580 6767.0924 64512848. -0.021271764 0.081872264 -26.554222 36.724606 6768.7722 57762766. 0.0019137885 0.083634630 -26.606954 36.630441 6770.4520 54100986. 0.069793072 0.087975982 -26.659686 36.536277