# # 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 = 46.189982 km # Date (UTC) = 2013-12-03T09:22:54.244 # Date (julian) = 2456629.89090560 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6499.6529 7.0313221e+10 0.042312870 0.032178537 -19.831037 53.948316 6501.5495 6.6429339e+10 0.048909666 0.032750466 -19.936896 53.872230 6503.4462 6.2433110e+10 0.055767308 0.033322395 -20.051975 53.783310 6505.3428 5.8234277e+10 0.062833897 0.033894324 -20.167331 53.694002 6507.2395 5.4368110e+10 0.070236669 0.034466253 -20.281634 53.604694 6509.1361 5.0478784e+10 0.077931670 0.035038183 -20.393269 53.515385 6511.0328 4.6702894e+10 0.085968202 0.035610112 -20.504904 53.426076 6512.9294 4.3604062e+10 0.094596015 0.036182041 -20.611117 53.344654 6514.8261 4.0929349e+10 0.10381229 0.036753970 -20.713656 53.268578 6516.7227 3.8617210e+10 0.11363081 0.037325899 -20.816194 53.192501 6518.6194 3.6347011e+10 0.12390056 0.037897828 -20.921811 53.108846 6520.5160 3.3822186e+10 0.13439879 0.038469757 -21.029725 53.019537 6522.4127 3.1353432e+10 0.14409629 0.039025310 -21.137639 52.930228 6524.3093 2.9143593e+10 0.15007328 0.039536842 -21.237864 52.849707 6526.2060 2.7369475e+10 0.15504574 0.039884004 -21.337095 52.770324 6528.1026 2.5897359e+10 0.16104337 0.041523877 -21.436326 52.690940 6529.9992 2.4399203e+10 0.16638029 0.043827500 -21.543043 52.602999 6531.8959 2.2849531e+10 0.17010745 0.046532667 -21.650957 52.513690 6533.7925 2.1302724e+10 0.17217332 0.047856395 -21.756198 52.426115 6535.6892 1.9981653e+10 0.17262292 0.047925328 -21.848825 52.346721 6537.5858 1.8898743e+10 0.17333696 0.048961424 -21.941452 52.267327 6539.4825 1.7893911e+10 0.17246182 0.050227668 -22.036403 52.186426 6541.3791 1.6818816e+10 0.17057358 0.051203578 -22.144317 52.097117 6543.2758 1.5645675e+10 0.16893061 0.051454274 -22.252231 52.007808 6545.1724 1.4536430e+10 0.16768601 0.052457112 -22.351499 51.923111 6547.0691 1.3630084e+10 0.16621699 0.053313635 -22.440806 51.843728 6548.9657 1.2905565e+10 0.16429719 0.053956045 -22.530113 51.764345 6550.8624 1.2252211e+10 0.16321655 0.055201291 -22.625991 51.680580 6552.7590 1.1558960e+10 0.16246254 0.055395721 -22.730185 51.591271 6554.6557 1.0836125e+10 0.16101204 0.054846139 -22.834379 51.501961 6556.5523 1.0100656e+10 0.15932475 0.053931924 -22.935765 51.412653 6558.4490 9.3790707e+09 0.15774184 0.052856729 -23.036237 51.323346 6560.3456 8.7142137e+09 0.15601386 0.051962692 -23.135964 51.234700 6562.2423 8.1358204e+09 0.15412354 0.050649380 -23.225283 51.155305 6564.1389 7.6822812e+09 0.15179061 0.048708643 -23.314602 51.075909 6566.0356 7.3125795e+09 0.14995765 0.047162768 -23.404248 50.996079 6567.9322 6.9397855e+09 0.14885665 0.045828982 -23.500998 50.906770 6569.8289 6.5454394e+09 0.14754713 0.044906370 -23.597749 50.817461 6571.7255 6.1376628e+09 0.14599262 0.044305126 -23.690666 50.731691 6573.6222 5.7895110e+09 0.14385472 0.043158220 -23.776666 50.652308 6575.5188 5.5122593e+09 0.14180440 0.041854189 -23.862666 50.572924 6577.4154 5.2618752e+09 0.13961050 0.039567805 -23.952249 50.488992 6579.3121 4.9892353e+09 0.13722737 0.036898925 -24.049000 50.395963 6581.2087 4.6960142e+09 0.13552203 0.035533399 -24.145750 50.302933 6583.1054 4.4190496e+09 0.13439679 0.034968322 -24.235556 50.218718 6585.0020 4.1960502e+09 0.13304911 0.033969143 -24.321556 50.139333 6586.8987 4.0161596e+09 0.13141567 0.033159679 -24.407555 50.059949 6588.7953 3.8437499e+09 0.12990332 0.033114326 -24.497933 49.974385 6590.6920 3.6422220e+09 0.12807078 0.029774870 -24.590962 49.885077 6592.5886 3.4405656e+09 0.12638698 0.027501786 -24.683992 49.795769 6594.4853 3.2532006e+09 0.12445113 0.025906129 -24.764267 49.715734 6596.3819 3.1090859e+09 0.12202385 0.025725537 -24.843661 49.636339 6598.2786 2.9922276e+09 0.12026038 0.025274164 -24.923056 49.556944 6600.1752 2.8635056e+09 0.11963208 0.025350101 -25.014893 49.465107 6602.0719 2.7307714e+09 0.11895050 0.027455302 -25.107923 49.372077 6603.9685 2.5815127e+09 0.11742695 0.026089913 -25.200115 49.279885 6605.8652 2.4389783e+09 0.11705544 0.027390849 -25.289423 49.190578 6607.7618 2.3003738e+09 0.11510422 0.024202698 -25.378731 49.101270 6609.6585 2.1744115e+09 0.11221368 0.023901526 -25.462701 49.017300 6611.5551 2.0741933e+09 0.10948021 0.024604459 -25.542085 48.937915 6613.4518 1.9937159e+09 0.10814955 0.023739342 -25.621469 48.858530 6615.3484 1.9147706e+09 0.10641831 0.023262251 -25.705961 48.772124 6617.2451 1.8257918e+09 0.10493702 0.023520496 -25.795269 48.679094 6619.1417 1.7304723e+09 0.10403448 0.024560105 -25.884577 48.586064 6621.0384 1.6397630e+09 0.10328910 0.025076735 -25.962947 48.504316 6622.9350 1.5749678e+09 0.10206917 0.024509127 -26.039034 48.424922 6624.8316 1.5186271e+09 0.10082668 0.025307485 -26.115120 48.345528 6626.7283 1.4616359e+09 0.099184474 0.025662989 -26.198850 48.255165 6628.6249 1.4028939e+09 0.098166389 0.025956828 -26.284438 48.162135 6630.5216 1.3337180e+09 0.096924887 0.025929587 -26.370025 48.069541 6632.4182 1.2674663e+09 0.095668755 0.026082495 -26.455612 47.980232 6634.3149 1.1995026e+09 0.094461770 0.026349812 -26.541199 47.890923 6636.2115 1.1368082e+09 0.093197232 0.026467606 -26.621277 47.804458 6638.1082 1.0876101e+09 0.092303748 0.025666929 -26.694046 47.721766 6640.0048 1.0511031e+09 0.092073908 0.025270061 -26.766815 47.639074 6641.9015 1.0213842e+09 0.091911694 0.025151362 -26.843282 47.553692 6643.7981 9.8338944e+08 0.090830151 0.025313126 -26.925149 47.464383 6645.6948 9.4008810e+08 0.089820705 0.025777160 -27.007015 47.375074 6647.5914 8.9490831e+08 0.088742704 0.026749166 -27.088881 47.285766 6649.4881 8.4829608e+08 0.087694791 0.026960908 -27.170747 47.196458 6651.3847 8.0883694e+08 0.087088880 0.026778996 -27.252323 47.107361 6653.2814 7.7034405e+08 0.086489680 0.027669317 -27.325101 47.024659 6655.1780 7.4095841e+08 0.085007141 0.027683772 -27.397879 46.941956 6657.0747 7.1332698e+08 0.083000555 0.028987716 -27.470762 46.859177 6658.9713 6.8787948e+08 0.081258694 0.031783715 -27.552605 46.769885 6660.8680 6.6096080e+08 0.079922854 0.032414929 -27.634472 46.680576 6662.7646 6.3110413e+08 0.078793382 0.032615283 -27.715141 46.590069 6664.6613 6.0511881e+08 0.078033824 0.029786592 -27.793286 46.497039 6666.5579 5.7388561e+08 0.078004948 0.027017309 -27.871431 46.404009 6668.4545 5.4908327e+08 0.077201971 0.027873018 -27.949576 46.313341 6670.3512 5.2494035e+08 0.077058698 0.027165929 -28.027722 46.224033 6672.2478 5.0071459e+08 0.076869285 0.027023255 -28.105867 46.134725 6674.1445 4.7942699e+08 0.076084320 0.029076680 -28.180487 46.041893 6676.0411 4.5375937e+08 0.074145664 0.031740239 -28.254910 45.948863 6677.9378 4.3103888e+08 0.073364575 0.031025054 -28.328044 45.859378 6679.8344 4.1614106e+08 0.073380537 0.029578231 -28.397506 45.779994 6681.7311 4.0058378e+08 0.074061352 0.030218235 -28.466967 45.700609 6683.6277 3.8934725e+08 0.074285948 0.032108530 -28.537602 45.617997 6685.5244 3.7780723e+08 0.073882245 0.033258712 -28.612026 45.524967 6687.4210 3.6258703e+08 0.072016253 0.034108088 -28.686449 45.431937 6689.3177 3.5092936e+08 0.069633866 0.033730065 -28.760873 45.338907 6691.2143 3.3506819e+08 0.068801225 0.032950696 -28.835297 45.245878 6693.1110 3.1855088e+08 0.068093532 0.031566019 -28.909721 45.152848 6695.0076 3.0316772e+08 0.067599723 0.029858074 -28.984155 45.063015 6696.9043 2.9447171e+08 0.066997119 0.030051490 -29.058590 44.973694 6698.8009 2.8589864e+08 0.065786241 0.031317166 -29.133023 44.883724 6700.6976 2.7589153e+08 0.064131841 0.031185121 -29.207446 44.790694 6702.5942 2.6679740e+08 0.063332609 0.033351211 -29.281869 44.697665 6704.4909 2.5265052e+08 0.063586985 0.036418591 -29.354478 44.606449 6706.3875 2.4421017e+08 0.063446133 0.039120831 -29.425181 44.517140 6708.2842 2.3629748e+08 0.063127484 0.040353013 -29.495884 44.427831 6710.1808 2.2498281e+08 0.062073274 0.040531885 -29.566587 44.335544 6712.0775 2.1572632e+08 0.060192609 0.041973760 -29.637290 44.242514 6713.9741 2.0538278e+08 0.058304295 0.047209732 -29.707993 44.149904 6715.8707 1.9636845e+08 0.056828941 0.048269164 -29.778695 44.060595 6717.7674 1.9127458e+08 0.054890635 0.049826801 -29.849397 43.971286 6719.6640 1.8513595e+08 0.053396968 0.050738950 -29.920099 43.880393 6721.5607 1.7840514e+08 0.053518868 0.050472838 -29.990802 43.787364 6723.4573 1.7155244e+08 0.052001839 0.049624010 -30.061505 43.694334 6725.3540 1.6372734e+08 0.048002509 0.041354901 -30.129459 43.604053 6727.2506 1.5821356e+08 0.046551749 0.040626469 -30.196441 43.514745 6729.1473 1.5036654e+08 0.045981463 0.040947260 -30.263612 43.425247 6731.0439 1.4472841e+08 0.044145233 0.041837456 -30.334316 43.332217 6732.9406 1.3677143e+08 0.042878931 0.043913366 -30.405019 43.239187 6734.8372 1.3217619e+08 0.042525891 0.049303226 -30.474368 43.146157 6736.7339 1.3054653e+08 0.043753204 0.053129463 -30.541348 43.053128 6738.6305 1.2240615e+08 0.044253436 0.060792408 -30.608329 42.960098 6740.5272 1.1813216e+08 0.043282681 0.064950942 -30.675317 42.869576 6742.4238 1.1256977e+08 0.040451084 0.069643465 -30.742308 42.780254 6744.3205 1.0836047e+08 0.036261123 0.078041285 -30.809300 42.690931 6746.2171 1.0705060e+08 0.034394944 0.076463080 -30.876281 42.597940 6748.1138 1.0078593e+08 0.030964395 0.067615407 -30.943263 42.504911 6750.0104 95138253. 0.028040054 0.072021908 -31.009120 42.413006 6751.9071 89702046. 0.025257544 0.074095180 -31.072380 42.323699 6753.8037 87352729. 0.023986794 0.075578229 -31.135640 42.234391 6755.7004 84455490. 0.021696022 0.074298285 -31.201189 42.142794 6757.5970 80751621. 0.020138406 0.074928314 -31.268170 42.049764 6759.4937 79145573. 0.020683347 0.075939080 -31.335152 41.956734 6761.3903 74330529. 0.021782830 0.078000471 -31.407066 41.855318 6763.2869 72629223. 0.025627908 0.077311664 -31.479365 41.753249 6765.1836 71219827. 0.027287327 0.079564709 -31.546455 41.656389 6767.0802 66055462. 0.026005917 0.081885916 -31.609716 41.563359 6768.9769 63337385. 0.020677776 0.084371105 -31.672976 41.470329 6770.8735 60288522. 0.015594165 0.088998413 -31.736236 41.380608 6772.7702 60327472. 0.0099806624 0.093598619 -31.799496 41.291301 6774.6668 59681434. 0.0011217134 0.098198824 -31.864579 41.198562 6776.5635 57487893. -0.036340120 0.10279903 -31.936878 41.092241 6778.4601 54982242. -0.011594742 0.10739923 -32.009176 40.985919 6780.3568 51648471. 0.049062222 0.11199944 -32.070626 40.890899