# # 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 = 40.077234 km # Date (UTC) = 2013-02-01T09:41:22.176 # Date (julian) = 2456324.90372889 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6499.9049 6.4575104e+10 0.039067012 0.032254530 -11.772152 65.030993 6501.2684 6.2371493e+10 0.045323219 0.032665697 -12.045064 64.907913 6502.6319 6.1089015e+10 0.052075779 0.033076865 -12.316425 64.783316 6503.9955 6.0060279e+10 0.059180448 0.033488033 -12.583906 64.654926 6505.3590 5.7537050e+10 0.066103170 0.033899200 -12.885605 64.508684 6506.7225 5.4922359e+10 0.073207390 0.034310368 -13.233859 64.338066 6508.0860 5.1814886e+10 0.080365351 0.034721536 -13.490641 64.209677 6509.4496 4.8905218e+10 0.087743019 0.035132703 -13.746655 64.081281 6510.8131 4.6931576e+10 0.095585131 0.035543871 -13.998162 63.952853 6512.1766 4.4969444e+10 0.10360791 0.035955039 -14.249649 63.824435 6513.5402 4.3044289e+10 0.11179276 0.036366206 -14.501080 63.696043 6514.9037 4.1205745e+10 0.12014454 0.036777374 -14.748180 63.565455 6516.2672 3.9020181e+10 0.12848417 0.037188542 -14.988985 63.431674 6517.6307 3.6762061e+10 0.13685685 0.037599709 -15.229752 63.297915 6518.9943 3.4613286e+10 0.14527368 0.038010877 -15.470486 63.164173 6520.3578 3.2415384e+10 0.15364723 0.038422045 -15.704100 63.033990 6521.7213 3.0491546e+10 0.16204562 0.038833212 -15.934202 62.905562 6523.0848 2.8886138e+10 0.16742398 0.039200139 -16.164305 62.772847 6524.4484 2.7422930e+10 0.17181603 0.039586242 -16.394408 62.639066 6525.8119 2.5958915e+10 0.17419092 0.039689556 -16.619459 62.505323 6527.1754 2.4407482e+10 0.17774607 0.040843822 -16.844147 62.371580 6528.5389 2.2875384e+10 0.17870052 0.041870024 -17.068898 62.237800 6529.9025 2.1478024e+10 0.18090997 0.043673332 -17.292598 62.104027 6531.2660 2.0240167e+10 0.18092773 0.045615832 -17.511934 61.970285 6532.6295 1.9131001e+10 0.18251186 0.047210087 -17.727813 61.834792 6533.9930 1.8119834e+10 0.18206051 0.047941601 -17.936510 61.695659 6535.3566 1.7134943e+10 0.18184999 0.048069618 -18.147620 61.558986 6536.7201 1.6156413e+10 0.18119450 0.048434789 -18.361605 61.425246 6538.0836 1.5288221e+10 0.18080128 0.049197400 -18.545472 61.304677 6539.4471 1.4624067e+10 0.18005858 0.050184889 -18.708139 61.193379 6540.8107 1.4071690e+10 0.17868741 0.051237086 -18.881010 61.076441 6542.1742 1.3448452e+10 0.17738107 0.051068374 -19.084358 60.942660 6543.5377 1.2644230e+10 0.17579567 0.051523022 -19.285637 60.806849 6544.9013 1.1769459e+10 0.17502560 0.052375461 -19.483573 60.667758 6546.2648 1.1067335e+10 0.17281752 0.052682396 -19.661227 60.542920 6547.6283 1.0630655e+10 0.17186308 0.053526297 -19.819614 60.431622 6548.9918 1.0280433e+10 0.16970952 0.053963840 -19.984047 60.315411 6550.3554 9.8384687e+09 0.16868049 0.055074338 -20.176633 60.176322 6551.7189 9.3307197e+09 0.16701901 0.055488090 -20.356070 60.045778 6553.0824 8.8726394e+09 0.16519263 0.055293641 -20.505896 59.934477 6554.4459 8.5178316e+09 0.16309914 0.054841738 -20.655722 59.823177 6555.8095 8.1443541e+09 0.16094609 0.054173224 -20.836747 59.684841 6557.1730 7.7094323e+09 0.15966011 0.053757678 -21.015386 59.548572 6558.5365 7.2883048e+09 0.15766600 0.052782130 -21.165176 59.437299 6559.9000 6.9413503e+09 0.15611579 0.052285592 -21.314965 59.326026 6561.2636 6.6199885e+09 0.15363917 0.051242802 -21.485287 59.193411 6562.6271 6.2825326e+09 0.15208678 0.050283203 -21.661877 59.054280 6563.9906 5.9966779e+09 0.14973277 0.048782451 -21.806767 58.936283 6565.3541 5.7964127e+09 0.14828638 0.047916263 -21.948031 58.820702 6566.7177 5.5901135e+09 0.14653146 0.046776901 -22.106092 58.691925 6568.0812 5.3170034e+09 0.14518550 0.045697024 -22.277280 58.552834 6569.4447 4.9999969e+09 0.14389044 0.044881369 -22.424797 58.432976 6570.8082 4.7241557e+09 0.14267125 0.044582706 -22.561780 58.321678 6572.1718 4.5513674e+09 0.14135189 0.044131785 -22.697239 58.208856 6573.5353 4.4405624e+09 0.13923917 0.043227916 -22.829941 58.093276 6574.8988 4.3098486e+09 0.13760214 0.042423301 -22.963303 57.977228 6576.2624 4.1383513e+09 0.13546406 0.041069421 -23.129143 57.838138 6577.6259 3.9309158e+09 0.13378664 0.039237270 -23.289346 57.702590 6578.9894 3.7211308e+09 0.13151592 0.037087230 -23.417768 57.587010 6580.3529 3.5589062e+09 0.12991778 0.036194595 -23.546189 57.471431 6581.7165 3.4259974e+09 0.12795165 0.035379656 -23.674586 57.355873 6583.0800 3.3103455e+09 0.12617122 0.034981183 -23.802977 57.240321 6584.4435 3.2023034e+09 0.12416091 0.034273915 -23.929337 57.126802 6585.8070 3.0918401e+09 0.12227544 0.033325568 -24.053477 57.015502 6587.1706 2.9827285e+09 0.12099231 0.033196159 -24.177618 56.903595 6588.5341 2.8836823e+09 0.11958767 0.033201571 -24.301760 56.788017 6589.8976 2.7890890e+09 0.11821278 0.031265195 -24.425902 56.672438 6591.2611 2.7130348e+09 0.11619218 0.028907245 -24.546593 56.556859 6592.6247 2.6456805e+09 0.11464765 0.027466786 -24.666452 56.441279 6593.9882 2.5567326e+09 0.11286354 0.026183503 -24.800374 56.312140 6595.3517 2.4550100e+09 0.11117192 0.025660045 -24.950163 56.167700 6596.7152 2.3241273e+09 0.10953202 0.025724022 -25.081980 56.040592 6598.0788 2.1999411e+09 0.10838422 0.025369558 -25.201840 55.925012 6599.4423 2.1056636e+09 0.10747726 0.024956332 -25.320568 55.809432 6600.8058 2.0209779e+09 0.10729226 0.026646495 -25.436148 55.693852 6602.1693 1.9446451e+09 0.10664598 0.027372119 -25.551727 55.578272 6603.5329 1.8654248e+09 0.10549656 0.026347814 -25.663308 55.462718 6604.8964 1.7892089e+09 0.10502861 0.026603529 -25.774580 55.347166 6606.2599 1.7237926e+09 0.10421902 0.027036885 -25.885868 55.231598 6607.6235 1.6681695e+09 0.10255415 0.024475912 -25.997167 55.116018 6608.9870 1.6130117e+09 0.10017097 0.023706276 -26.108466 55.000438 6610.3505 1.5555378e+09 0.098193842 0.024337877 -26.219764 54.884859 6611.7140 1.4967388e+09 0.096419134 0.024503116 -26.331063 54.769279 6613.0776 1.4301770e+09 0.095716048 0.023602046 -26.438402 54.653726 6614.4411 1.3671508e+09 0.094710070 0.023636604 -26.545395 54.538175 6615.8046 1.3134836e+09 0.093488036 0.023276287 -26.642000 54.431761 6617.1681 1.2697554e+09 0.092827265 0.023494994 -26.731178 54.331881 6618.5317 1.2446615e+09 0.092315966 0.024172263 -26.820356 54.232001 6619.8952 1.2171348e+09 0.091937423 0.024741908 -26.923444 54.119879 6621.2587 1.1761336e+09 0.091233480 0.025003695 -27.030462 54.004299 6622.6222 1.1339377e+09 0.090391149 0.024592373 -27.135581 53.888720 6623.9858 1.0851530e+09 0.089161248 0.024857036 -27.238319 53.773139 6625.3493 1.0389099e+09 0.088752877 0.025814413 -27.341054 53.657562 6626.7128 9.9706486e+08 0.087430551 0.025682708 -27.443767 53.542012 6628.0763 9.5418000e+08 0.086797670 0.025734091 -27.546479 53.426462 6629.4399 9.1780236e+08 0.085968279 0.026029575 -27.645910 53.307588 6630.8034 8.7815441e+08 0.084915944 0.025930282 -27.744367 53.187726 6632.1669 8.3945378e+08 0.084074602 0.026052361 -27.844685 53.069727 6633.5304 8.0200348e+08 0.083279977 0.026244864 -27.947423 52.954148 6634.8940 7.7415080e+08 0.082472736 0.026392053 -28.047760 52.840475 6636.2575 7.5343781e+08 0.081335798 0.026449755 -28.126221 52.744184 6637.6210 7.3569038e+08 0.080641755 0.025857252 -28.204682 52.647892 6638.9846 7.2492818e+08 0.079702470 0.025628748 -28.289041 52.544647 6640.3481 7.0583984e+08 0.080217262 0.025228064 -28.387498 52.424785 6641.7116 6.8432769e+08 0.080223547 0.025150717 -28.485956 52.304922 6643.0751 6.6185717e+08 0.079797132 0.025203962 -28.580307 52.189167 6644.4387 6.4420425e+08 0.078971270 0.025391015 -28.674483 52.073587 6645.8022 6.2632620e+08 0.078290539 0.025827477 -28.768659 51.955342 6647.1657 6.0116229e+08 0.077734144 0.026525026 -28.862835 51.835482 6648.5292 5.7813685e+08 0.077172556 0.027318556 -28.951481 51.722382 6649.8928 5.5927009e+08 0.077038487 0.026403061 -29.026376 51.626088 6651.2563 5.5160822e+08 0.076696211 0.026680572 -29.101270 51.529795 6652.6198 5.4693565e+08 0.076493994 0.027421057 -29.185475 51.424189 6653.9833 5.3507946e+08 0.076009352 0.028027719 -29.279652 51.308609 6655.3469 5.1744410e+08 0.075152164 0.027753541 -29.372571 51.192401 6656.7104 4.9316222e+08 0.074106394 0.028646923 -29.458185 51.072541 6658.0739 4.6758000e+08 0.073509243 0.030192173 -29.543799 50.952682 6659.4374 4.5123378e+08 0.072587655 0.031743347 -29.620734 50.851913 6660.8010 4.4289029e+08 0.071760553 0.032354040 -29.695644 50.755601 6662.1645 4.3324692e+08 0.070946258 0.032951980 -29.770652 50.659073 6663.5280 4.2146595e+08 0.070188982 0.032336885 -29.856227 50.539282 6664.8915 4.0627848e+08 0.070113968 0.028943954 -29.941821 50.419450 6666.2551 3.8888415e+08 0.070072473 0.026958299 -30.027429 50.299598 6667.6186 3.7099156e+08 0.069759882 0.027330680 -30.113044 50.179737 6668.9821 3.5562334e+08 0.068909308 0.028339885 -30.193882 50.067759 6670.3457 3.4200723e+08 0.069207079 0.027168498 -30.265224 49.971448 6671.7092 3.3450910e+08 0.069030581 0.026875455 -30.336567 49.875137 6673.0727 3.2648113e+08 0.068779266 0.027567951 -30.415493 49.766312 6674.4362 3.0788759e+08 0.068014962 0.029322780 -30.501107 49.646451 6675.7998 2.9338046e+08 0.066631590 0.031330184 -30.583234 49.531192 6677.1633 2.7911427e+08 0.065715079 0.032126095 -30.650996 49.434899 6678.5268 2.6863897e+08 0.065507534 0.030584262 -30.718758 49.338606 6679.8903 2.6295066e+08 0.065939607 0.029532039 -30.791832 49.233089 6681.2539 2.5150362e+08 0.066610734 0.029852116 -30.873166 49.113229 6682.6174 2.4659188e+08 0.067044470 0.030896250 -30.953750 48.994672 6683.9809 2.4223137e+08 0.067065226 0.032626119 -31.021525 48.898360 6685.3444 2.3566569e+08 0.066881003 0.033068650 -31.089300 48.802047 6686.7080 2.3080369e+08 0.065750106 0.034172989 -31.159412 48.699802 6688.0715 2.2166436e+08 0.064202390 0.033801693 -31.236466 48.579941 6689.4350 2.1768987e+08 0.062541291 0.033624439 -31.313520 48.460080 6690.7985 2.1479937e+08 0.061845637 0.033024350 -31.378797 48.358538 6692.1621 2.1283782e+08 0.061049673 0.032577128 -31.442992 48.258678 6693.5256 2.1084525e+08 0.060311514 0.031423777 -31.508627 48.157057 6694.8891 2.0199814e+08 0.059951497 0.030014876 -31.585681 48.041479 6696.2526 1.9491568e+08 0.059521333 0.029780755 -31.662734 47.925901 6697.6162 1.8105747e+08 0.058841499 0.030169243 -31.729820 47.822503 6698.9797 1.7247623e+08 0.057640988 0.031562567 -31.794029 47.722623 6700.3432 1.6818352e+08 0.056302435 0.030922298 -31.858237 47.622742 6701.7068 1.6845891e+08 0.054866437 0.032446452 -31.934937 47.503431 6703.0703 1.6715351e+08 0.054730441 0.033851092 -32.011990 47.383572 6704.4338 1.5758122e+08 0.054398379 0.036390574 -32.078590 47.278711 6705.7973 1.4916078e+08 0.053965865 0.038086098 -32.139218 47.182418 6707.1609 1.4117596e+08 0.053260365 0.040163784 -32.199846 47.086125 6708.5244 1.3900886e+08 0.052617657 0.040614612 -32.270586 46.970211 6709.8879 1.3569348e+08 0.051497845 0.040567790 -32.343360 46.850350 6711.2514 1.3089978e+08 0.049788304 0.040978296 -32.410110 46.740409 6712.6150 1.2410035e+08 0.048033364 0.042971735 -32.470750 46.640529 6713.9785 1.1723231e+08 0.046001104 0.047225599 -32.531391 46.540649 6715.3420 1.1268640e+08 0.044539612 0.047728389 -32.600440 46.429888 6716.7055 1.0914217e+08 0.042774487 0.049440554 -32.673214 46.314310 6718.0691 1.0903872e+08 0.041222051 0.049919977 -32.740381 46.204337 6719.4326 1.0480468e+08 0.039522545 0.050958846 -32.797455 46.104456 6720.7961 98508087. 0.039045984 0.050327522 -32.854529 46.004576 6722.1596 92825167. 0.037809263 0.050407844 -32.917915 45.893649 6723.5232 86053601. 0.035122414 0.049660724 -32.986391 45.773818 6724.8867 83642711. 0.030604082 0.042522188 -33.053165 45.659093 6726.2502 80699691. 0.027032152 0.040953624 -33.113805 45.562780 6727.6137 78080960. 0.022789289 0.040142699 -33.174446 45.466468 6728.9773 73794871. 0.013535795 0.041013216 -33.232135 45.368679 6730.3408 69690729. -0.039971290 0.040846180 -33.285643 45.268800 6731.7043 62774099. -0.0020602892 0.043151763 -33.339150 45.168921 6733.0679 58673256. 0.099765608 0.044292692 -33.401803 45.056846