# # 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 = 60.603463 km # Date (UTC) = 2013-11-18T11:02:54.565 # Date (julian) = 2456614.96035377 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6503.0202 5.8294401e+10 0.055464497 0.033193933 88.868075 31.617985 6505.3118 5.3442515e+10 0.064714311 0.033884955 88.929734 31.468970 6507.6033 4.9190917e+10 0.074313425 0.034575978 88.994839 31.319972 6509.8949 4.5405264e+10 0.084260972 0.035267000 89.061630 31.170981 6512.1865 4.2074856e+10 0.094623728 0.035958022 89.124701 31.021973 6514.4781 3.9201804e+10 0.10547733 0.036649044 89.186359 30.872959 6516.7697 3.6614885e+10 0.11681007 0.037340067 89.248022 30.723943 6519.0613 3.4181228e+10 0.12857486 0.038031089 89.309685 30.574927 6521.3529 3.1784803e+10 0.14070520 0.038722111 89.371347 30.425912 6523.6445 2.9399627e+10 0.14842038 0.039338840 89.433010 30.276898 6525.9360 2.6963500e+10 0.15337092 0.039675386 89.490116 30.127882 6528.2276 2.4708991e+10 0.15904052 0.041623067 89.546640 29.978866 6530.5192 2.2802722e+10 0.16322178 0.044555600 89.600743 29.847372 6532.8108 2.1190650e+10 0.16726153 0.047361540 89.654694 29.716987 6535.1024 1.9782884e+10 0.16952900 0.048179876 89.714169 29.573257 6537.3940 1.8306593e+10 0.17072186 0.048870974 89.775832 29.424241 6539.6856 1.6777681e+10 0.17177710 0.050473499 89.833536 29.275226 6541.9772 1.5341942e+10 0.17109185 0.051009644 89.890060 29.126211 6544.2688 1.4030408e+10 0.16996080 0.051862364 89.946583 28.977195 6546.5603 1.2867106e+10 0.16846256 0.052925595 90.003106 28.828180 6548.8519 1.1775285e+10 0.16648959 0.053922061 90.064138 28.679165 6551.1435 1.0827377e+10 0.16473368 0.055286127 90.125797 28.530151 6553.4351 1.0064202e+10 0.16310574 0.055116346 90.176092 28.402668 6555.7267 9.4390625e+09 0.16094928 0.054242770 90.225557 28.276759 6558.0183 8.9043739e+09 0.15910829 0.053223728 90.280012 28.134508 6560.3099 8.3480330e+09 0.15665196 0.051994924 90.336526 27.985519 6562.6015 7.7769913e+09 0.15421401 0.050307597 90.393047 27.836509 6564.8930 7.2487858e+09 0.15209767 0.048366870 90.449570 27.687493 6567.1846 6.7450806e+09 0.15032712 0.046461077 90.506094 27.538479 6569.4762 6.2823785e+09 0.14887969 0.044883419 90.562617 27.389464 6571.7678 5.8981567e+09 0.14765600 0.044293572 90.613003 27.260537 6574.0594 5.5771115e+09 0.14552015 0.042826478 90.662467 27.134629 6576.3510 5.3039760e+09 0.14355263 0.040967405 90.716489 26.993803 6578.6426 5.0219166e+09 0.14104662 0.037634921 90.773012 26.844787 6580.9342 4.6971037e+09 0.13875982 0.035657456 90.825935 26.695790 6583.2257 4.3927582e+09 0.13701119 0.034907404 90.877310 26.546801 6585.5173 4.1338257e+09 0.13480940 0.033557176 90.927246 26.415191 6587.8089 3.9233458e+09 0.13280604 0.033337596 90.976710 26.289282 6590.1005 3.7547321e+09 0.13014443 0.030875103 91.027190 26.151147 6592.3921 3.5671801e+09 0.12700002 0.027692679 91.078574 26.002132 6594.6837 3.3680461e+09 0.12402398 0.025797213 91.132954 25.853117 6596.9753 3.1666632e+09 0.12110615 0.025722840 91.189478 25.704102 6599.2669 2.9849276e+09 0.11947866 0.024945781 91.238636 25.569816 6601.5585 2.8485905e+09 0.11960522 0.027308688 91.283596 25.443927 6603.8500 2.7300955e+09 0.11846220 0.026160053 91.333329 25.308492 6606.1416 2.6168143e+09 0.11828052 0.027249466 91.389852 25.159476 6608.4332 2.4858532e+09 0.11602649 0.023720917 91.443977 25.012859 6610.7248 2.3488196e+09 0.11323110 0.024695510 91.495360 24.868982 6613.0164 2.2232477e+09 0.11227774 0.023579604 91.543402 24.732128 6615.3080 2.1291402e+09 0.11106948 0.023261007 91.588365 24.601743 6617.5996 2.0498856e+09 0.11005532 0.023638033 91.635232 24.467359 6619.8912 1.9717251e+09 0.10943810 0.024740935 91.686615 24.323482 6622.1827 1.8874815e+09 0.10818328 0.024709353 91.737999 24.179605 6624.4743 1.7914613e+09 0.10651397 0.025116216 91.789383 24.035728 6626.7659 1.7072125e+09 0.10469590 0.025615053 91.838171 23.897304 6629.0575 1.6350362e+09 0.10331518 0.026098708 91.883130 23.766918 6631.3491 1.5742843e+09 0.10134470 0.025966227 91.929246 23.634104 6633.6407 1.5137037e+09 0.099630574 0.026264109 91.980630 23.490227 6635.9323 1.4475154e+09 0.097803330 0.026539596 92.032015 23.346351 6638.2239 1.3772513e+09 0.096486754 0.025661889 92.083402 23.202475 6640.5154 1.3125061e+09 0.096320251 0.025207586 92.131646 23.062480 6642.8070 1.2607604e+09 0.095659573 0.025184722 92.172109 22.932094 6645.0986 1.2147313e+09 0.094219868 0.025497885 92.213267 22.800849 6647.3902 1.1688344e+09 0.092777719 0.026643227 92.264651 22.656973 6649.6818 1.1187350e+09 0.091842048 0.026693864 92.316035 22.513097 6651.9734 1.0615090e+09 0.091567240 0.027230124 92.367423 22.369220 6654.2650 1.0086527e+09 0.091011887 0.027923345 92.416938 22.228426 6656.5566 9.6427870e+08 0.089255106 0.028511908 92.457401 22.102536 6658.8481 9.3119577e+08 0.087653050 0.031565288 92.497864 21.976646 6661.1397 8.9502108e+08 0.086316931 0.032606120 92.548671 21.828853 6663.4313 8.6068678e+08 0.085022824 0.032363682 92.600041 21.679866 6665.7229 8.2917959e+08 0.084717159 0.027362612 92.640509 21.553973 6668.0145 8.0263000e+08 0.083943774 0.027483607 92.680975 21.428083 6670.3061 7.7932474e+08 0.083258274 0.027186827 92.729924 21.288219 6672.5977 7.4956841e+08 0.082857602 0.027226023 92.781307 21.144343 6674.8893 7.1391720e+08 0.081438714 0.029704944 92.828421 21.000466 6677.1809 6.8173809e+08 0.079183696 0.032101117 92.874665 20.856589 6679.4724 6.5871802e+08 0.078751208 0.029877368 92.915798 20.728625 6681.7640 6.3812185e+08 0.079497755 0.030243509 92.956264 20.602736 6684.0556 6.1972314e+08 0.079525061 0.032656914 93.000547 20.464966 6686.3472 5.9445966e+08 0.078474885 0.033963093 93.046791 20.321090 6688.6388 5.6652032e+08 0.075473837 0.033932645 93.093038 20.177212 6690.9304 5.3839860e+08 0.074029319 0.033009241 93.139287 20.033334 6693.2220 5.1546861e+08 0.072923551 0.031527940 93.181090 19.903277 6695.5136 4.9607907e+08 0.072239392 0.029765140 93.221553 19.777387 6697.8051 4.8044852e+08 0.071339470 0.030193158 93.265163 19.641710 6700.0967 4.6614640e+08 0.069615572 0.030739467 93.311411 19.497834 6702.3883 4.5085398e+08 0.068236117 0.033186805 93.357657 19.353958 6704.6799 4.3120451e+08 0.068652921 0.036511424 93.403901 19.210081 6706.9715 4.1105124e+08 0.068438683 0.040137217 93.446379 19.080861 6709.2631 3.9755814e+08 0.067749532 0.040965209 93.486845 18.959467 6711.5547 3.8573932e+08 0.065738180 0.041323297 93.529783 18.828456 6713.8463 3.7383646e+08 0.063446900 0.046747363 93.576028 18.684580 6716.1378 3.5892518e+08 0.061593891 0.048604396 93.622274 18.540703 6718.4294 3.4163756e+08 0.059282078 0.050481227 93.668522 18.396826 6720.7210 3.2657449e+08 0.058969404 0.050336223 93.714768 18.252949 6723.0126 3.1371702e+08 0.058072027 0.049375978 93.761012 18.109072 6725.3042 3.0204836e+08 0.053694594 0.041386001 93.803850 17.978448 6727.5958 2.9467471e+08 0.052324713 0.040166627 93.844317 17.857055 6729.8874 2.8709858e+08 0.051112041 0.040453969 93.885016 17.727450 6732.1790 2.7783294e+08 0.049286629 0.043773156 93.926121 17.583573 6734.4706 2.6441047e+08 0.048682015 0.049325288 93.969381 17.439696 6736.7621 2.5325989e+08 0.050409566 0.053236317 94.015630 17.295818 6739.0537 2.4260464e+08 0.051135942 0.062892303 94.059447 17.154372 6741.3453 2.3449659e+08 0.049503529 0.066743549 94.100555 17.015634 6743.6369 2.2633058e+08 0.044887679 0.075343969 94.144370 16.874189 6745.9285 2.1731004e+08 0.042954118 0.078957216 94.190614 16.730312 6748.2201 2.0940097e+08 0.038726782 0.068174742 94.230890 16.596882 6750.5117 2.0280775e+08 0.035876985 0.072877823 94.266860 16.470992 6752.8033 1.9792668e+08 0.033027584 0.073204961 94.306493 16.340521 6755.0948 1.9305129e+08 0.031135321 0.074563763 94.352737 16.201783 6757.3864 1.8821575e+08 0.028867045 0.075567343 94.396873 16.060935 6759.6780 1.8017974e+08 0.029780352 0.075983572 94.437982 15.917058 6761.9696 1.7402526e+08 0.033308886 0.078048333 94.481478 15.775566 6764.2612 1.7003026e+08 0.036504827 0.079495799 94.527726 15.636828 6766.5528 1.6416947e+08 0.037419273 0.080964151 94.571308 15.498090 6768.8444 1.5722666e+08 0.032876903 0.083894268 94.612413 15.359352 6771.1360 1.4817851e+08 0.028581110 0.089634899 94.653520 15.217674 6773.4275 1.4047768e+08 0.024393260 0.095193007 94.694628 15.073797 6775.7191 1.3594245e+08 0.020206018 0.10075112 94.735737 14.933138 6778.0107 1.3146069e+08 0.016028339 0.10630922 94.776845 14.794399 6780.3023 1.2610594e+08 0.011861977 0.11186733 94.821446 14.652166 6782.5939 1.2434430e+08 0.0077003970 0.11742544 94.867691 14.508289 6784.8855 1.2271664e+08 0.0035532714 0.12298355 94.910166 14.368183 6787.1771 1.1873906e+08 -0.00058429918 0.12854166 94.951275 14.229445 6789.4687 1.1398420e+08 -0.0047145722 0.13409976 94.992383 14.090706 6791.7602 1.0783664e+08 -0.0088434657 0.13965787 95.033492 13.951969 6794.0518 1.0420542e+08 -0.012951845 0.14521598 95.074600 13.813230 6796.3434 1.0027438e+08 -0.017047016 0.15077409 95.115709 13.674492 6798.6350 96507379. -0.021118924 0.15633220 95.156814 13.531152 6800.9266 91918621. -0.025169122 0.16189031 95.197918 13.387276 6803.2182 90530628. -0.029173116 0.16744841 95.239027 13.248276 6805.5098 88852019. -0.033172520 0.17300652 95.280136 13.109537 6807.8014 86802240. -0.037180518 0.17856463 95.321244 12.970799 6810.0930 85708671. -0.041188278 0.18412274 95.362745 12.830738 6812.3845 79994529. -0.045249947 0.18968085 95.410706 12.668872 6814.6761 75847697. -0.049315619 0.19523896 95.455999 12.516006 6816.9677 72055270. -0.053406502 0.20079706 95.497104 12.377269 6819.2593 66971117. -0.057556843 0.20635517 95.538210 12.238530 6821.5509 66194011. -0.061697321 0.21191328 95.579319 12.099792 6823.8425 63647191. -0.065957982 0.21747139 95.620427 11.961054 6826.1341 60487821. -0.070378852 0.22302950 95.661536 11.822316 6828.4257 57753188. -0.075042576 0.22858761 95.703116 11.670837 6830.7172 53107949. -0.080303458 0.23414571 95.745082 11.508970 6833.0088 50332182. -0.087256413 0.23970382 95.786285 11.367542 6835.3004 48428598. -0.10727696 0.24526193 95.827386 11.228828 6837.5920 47610074. -0.098680227 0.25082004 95.868494 11.090091 6839.8836 48194640. -0.074767271 0.25637815 95.909609 10.951333