# # 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 = 46.741508 km # Date (UTC) = 2011-12-13T09:16:06.739 # Date (julian) = 2455908.88618910 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6497.0457 1.8802264e+11 0.038724473 0.031392347 -23.242465 47.556600 6499.0291 1.6659337e+11 0.045341114 0.031990437 -23.325491 47.470115 6501.0125 1.4633457e+11 0.051969504 0.032588528 -23.408517 47.383629 6502.9959 1.2761550e+11 0.058649894 0.033186619 -23.495483 47.293040 6504.9793 1.1076005e+11 0.065421695 0.033784710 -23.588877 47.195755 6506.9627 9.5772377e+10 0.072305142 0.034382801 -23.682272 47.098469 6508.9461 8.3366359e+10 0.079438785 0.034980891 -23.767257 47.009943 6510.9295 7.3527214e+10 0.087029612 0.035578982 -23.850272 46.923469 6512.9129 6.5876270e+10 0.095281925 0.036177073 -23.933287 46.836995 6514.8963 5.9582189e+10 0.10425052 0.036775164 -24.013123 46.750520 6516.8798 5.4493746e+10 0.11402033 0.037373255 -24.092680 46.664046 6518.8632 4.9948774e+10 0.12448015 0.037971346 -24.172515 46.577268 6520.8466 4.5589347e+10 0.13549312 0.038569436 -24.262018 46.479983 6522.8300 4.1235311e+10 0.14463578 0.039134589 -24.351520 46.382698 6524.8134 3.7319313e+10 0.15155958 0.039715917 -24.436468 46.290362 6526.7968 3.4039558e+10 0.15715014 0.040503422 -24.516035 46.203877 6528.7802 3.1418400e+10 0.16214516 0.042061410 -24.595601 46.117391 6530.7636 2.9255854e+10 0.16724892 0.044897719 -24.675162 46.030912 6532.7470 2.7238448e+10 0.17206109 0.047308234 -24.754719 45.944437 6534.7304 2.5377596e+10 0.17385809 0.048148881 -24.834276 45.857963 6536.7138 2.3636837e+10 0.17342010 0.048429170 -24.911492 45.771489 6538.6972 2.2123252e+10 0.17252839 0.049496191 -24.987589 45.685014 6540.6806 2.0737796e+10 0.17142058 0.051175648 -25.063687 45.598540 6542.6640 1.9399482e+10 0.16966246 0.051254342 -25.147258 45.500514 6544.6474 1.8001151e+10 0.16816219 0.052169562 -25.232868 45.399337 6546.6308 1.6642125e+10 0.16640116 0.052983609 -25.316428 45.301331 6548.6143 1.5429447e+10 0.16490533 0.053851082 -25.392535 45.214846 6550.5977 1.4402472e+10 0.16386416 0.055135008 -25.468643 45.128360 6552.5811 1.3543149e+10 0.16293942 0.055440513 -25.544748 45.041878 6554.5645 1.2750020e+10 0.16141655 0.054844225 -25.620845 44.955403 6556.5479 1.2060097e+10 0.15975155 0.053932578 -25.696942 44.868929 6558.5313 1.1386088e+10 0.15801865 0.052786588 -25.775480 44.777761 6560.5147 1.0675080e+10 0.15607073 0.051810253 -25.857200 44.680476 6562.4981 9.9550306e+09 0.15418625 0.050405950 -25.938920 44.583191 6564.4815 9.2738701e+09 0.15210006 0.048553382 -26.012790 44.495251 6566.4649 8.7124058e+09 0.15029954 0.046919889 -26.085428 44.408776 6568.4483 8.2466236e+09 0.14874732 0.045359558 -26.158066 44.322302 6570.4317 7.8197581e+09 0.14737276 0.044738678 -26.230705 44.235828 6572.4151 7.4138046e+09 0.14560268 0.043992426 -26.303343 44.149354 6574.3985 7.0319060e+09 0.14309429 0.042663593 -26.375698 44.062878 6576.3819 6.6854097e+09 0.14058500 0.040931779 -26.444886 43.976393 6578.3653 6.3795169e+09 0.13796068 0.038072700 -26.514074 43.889907 6580.3487 6.0887099e+09 0.13574499 0.036198461 -26.585665 43.801351 6582.3322 5.7655099e+09 0.13406000 0.035203407 -26.667385 43.704066 6584.3156 5.4263782e+09 0.13241527 0.034343615 -26.749105 43.606781 6586.2990 5.1004446e+09 0.13090007 0.033167431 -26.823025 43.516219 6588.2824 4.8203210e+09 0.12972787 0.033285633 -26.892204 43.429745 6590.2658 4.5856090e+09 0.12790302 0.030567683 -26.961383 43.343270 6592.2492 4.3622699e+09 0.12580294 0.027831495 -27.030563 43.256796 6594.2326 4.1586367e+09 0.12361394 0.026044844 -27.099742 43.170322 6596.2160 3.9649909e+09 0.12105426 0.025726292 -27.168922 43.083848 6598.1994 3.7645172e+09 0.11930172 0.025311965 -27.245365 42.988294 6600.1828 3.5462890e+09 0.11873998 0.025365690 -27.323193 42.891008 6602.1662 3.3271334e+09 0.11813804 0.027374795 -27.397753 42.795706 6604.1496 3.1310993e+09 0.11667106 0.026160114 -27.463482 42.705761 6606.1330 2.9588219e+09 0.11610105 0.027264924 -27.529211 42.615817 6608.1164 2.8121902e+09 0.11365133 0.023729293 -27.596250 42.527189 6610.0998 2.6811720e+09 0.11052768 0.024098369 -27.665430 42.440714 6612.0832 2.5633685e+09 0.10790408 0.024258557 -27.734609 42.354240 6614.0666 2.4519940e+09 0.10642785 0.023894575 -27.806112 42.262486 6616.0501 2.3197626e+09 0.10449968 0.023290155 -27.880048 42.165201 6618.0335 2.1804008e+09 0.10351901 0.023796062 -27.953984 42.067915 6620.0169 2.0576593e+09 0.10240163 0.024772633 -28.020373 41.980562 6622.0003 1.9604608e+09 0.10081339 0.024757920 -28.086094 41.894087 6623.9837 1.8810562e+09 0.098784844 0.024856263 -28.151934 41.807314 6625.9671 1.7980868e+09 0.097887385 0.026551625 -28.221980 41.710029 6627.9505 1.7014166e+09 0.096493585 0.025683970 -28.292025 41.612744 6629.9339 1.6085527e+09 0.095485541 0.025940254 -28.360094 41.520404 6631.9173 1.5253355e+09 0.093994399 0.026023945 -28.425824 41.433918 6633.9007 1.4543357e+09 0.092734724 0.026309507 -28.491553 41.347432 6635.8841 1.3959781e+09 0.091381270 0.026532374 -28.555315 41.260953 6637.8675 1.3428899e+09 0.090376026 0.025736527 -28.617577 41.174479 6639.8509 1.3003381e+09 0.089967053 0.025323935 -28.679838 41.088005 6641.8343 1.2496621e+09 0.090020126 0.025151134 -28.747363 40.994220 6643.8177 1.1895947e+09 0.089062954 0.025316087 -28.817408 40.896935 6645.8011 1.1302315e+09 0.088089394 0.025826990 -28.886624 40.800800 6647.7845 1.0745175e+09 0.087058449 0.026850848 -28.948886 40.714325 6649.7680 1.0342824e+09 0.086018101 0.026575100 -29.011147 40.627851 6651.7514 9.9920690e+08 0.085236591 0.027059975 -29.075085 40.539049 6653.7348 9.5462003e+08 0.084468832 0.027900807 -29.145131 40.441764 6655.7182 9.0978649e+08 0.082746035 0.027906967 -29.215176 40.344479 6657.7016 8.6068475e+08 0.081131804 0.029714920 -29.280201 40.251932 6659.6850 8.2261916e+08 0.079502978 0.031691710 -29.342471 40.161986 6661.6684 7.9409929e+08 0.077812690 0.032875375 -29.404741 40.072040 6663.6518 7.5999430e+08 0.076317194 0.032302584 -29.469943 39.976553 6665.6352 7.2550397e+08 0.076014197 0.027506329 -29.536098 39.879268 6667.6186 6.8668140e+08 0.075431700 0.027330683 -29.600890 39.783984 6669.6020 6.5270708e+08 0.074691534 0.027737392 -29.659693 39.697510 6671.5854 6.2662637e+08 0.074681065 0.026873691 -29.718495 39.611036 6673.5688 6.0301439e+08 0.074160182 0.028309939 -29.779460 39.521382 6675.5522 5.8220331e+08 0.072355988 0.030856085 -29.845614 39.424097 6677.5356 5.5883883e+08 0.070940667 0.031596752 -29.911768 39.326812 6679.5190 5.3327459e+08 0.070759359 0.029838856 -29.977922 39.229526 6681.5025 5.0188255e+08 0.071675072 0.030042830 -30.044076 39.132241 6683.4859 4.7555739e+08 0.072088995 0.031900609 -30.109093 39.036628 6685.4693 4.5314599e+08 0.071766466 0.033200494 -30.167896 38.950153 6687.4527 4.3673885e+08 0.069793608 0.034090443 -30.226698 38.863679 6689.4361 4.2280831e+08 0.067386491 0.033623488 -30.287442 38.774351 6691.4195 4.0497409e+08 0.066420621 0.032902293 -30.353605 38.677051 6693.4029 3.8609635e+08 0.065543386 0.031465874 -30.419769 38.579751 6695.3863 3.6868904e+08 0.065090561 0.029788517 -30.483224 38.482462 6697.3697 3.5359663e+08 0.064368065 0.030138051 -30.545487 38.385177 6699.3531 3.3699083e+08 0.062952459 0.031264618 -30.606888 38.289237 6701.3365 3.2011173e+08 0.061165177 0.031903202 -30.662231 38.202763 6703.3199 3.0423577e+08 0.060976868 0.034475766 -30.717575 38.116289 6705.3033 2.9223812e+08 0.060895035 0.037207851 -30.774533 38.027291 6707.2867 2.8288117e+08 0.060346413 0.040145753 -30.836796 37.930006 6709.2701 2.7179486e+08 0.059523954 0.040960725 -30.899058 37.832721 6711.2535 2.6105919e+08 0.057754990 0.040980691 -30.961321 37.735436 6713.2369 2.4917047e+08 0.055869461 0.044543606 -31.023583 37.638150 6715.2204 2.3832887e+08 0.054061484 0.047603958 -31.085846 37.540865 6717.2038 2.2782340e+08 0.052105655 0.049861665 -31.148108 37.443580 6719.1872 2.2004036e+08 0.050029798 0.051192020 -31.210371 37.346295 6721.1706 2.1193618e+08 0.050378692 0.050355292 -31.269011 37.254670 6723.1540 2.0301839e+08 0.049189126 0.049454819 -31.324361 37.168184 6725.1374 1.9531560e+08 0.045049646 0.041490205 -31.379712 37.081698 6727.1208 1.8763058e+08 0.043486601 0.040799463 -31.436976 36.988372 6729.1042 1.8381184e+08 0.043045524 0.040975980 -31.495347 36.891087 6731.0876 1.7717232e+08 0.041239594 0.041924364 -31.553966 36.793801 6733.0710 1.6998150e+08 0.040037626 0.044309814 -31.616229 36.696516 6735.0544 1.6298184e+08 0.040052378 0.049351194 -31.678491 36.599230 6737.0378 1.5632751e+08 0.041451955 0.054256033 -31.738832 36.501945 6739.0212 1.5079172e+08 0.041969609 0.062852525 -31.797204 36.404660 6741.0046 1.4438514e+08 0.040750266 0.065771893 -31.855575 36.307375 6742.9880 1.3831791e+08 0.037315779 0.071018286 -31.913945 36.213687 6744.9714 1.3081805e+08 0.033970414 0.078544797 -31.972316 36.120294 6746.9548 1.2471153e+08 0.029369763 0.067886114 -32.030686 36.025522 6748.9383 1.1971721e+08 0.029261604 0.071953080 -32.089058 35.928237 6750.9217 1.1250172e+08 0.026249502 0.073577901 -32.147430 35.830952 6752.9051 1.1021368e+08 0.023548270 0.073087147 -32.205801 35.733667 6754.8885 1.0843132e+08 0.022019004 0.074784699 -32.264173 35.636382 6756.8719 1.0775438e+08 0.019591338 0.076410377 -32.322544 35.539096 6758.8553 1.0312541e+08 0.020371333 0.075513931 -32.380915 35.441811 6760.8387 94848814. 0.020451731 0.077660612 -32.439285 35.344525 6762.8221 88728802. 0.025137738 0.076724739 -32.495145 35.247240 6764.8055 84966345. 0.027383716 0.079521875 -32.549625 35.149955 6766.7889 85318105. 0.027711363 0.081498269 -32.604398 35.052669 6768.7723 82350521. 0.023327394 0.083634988 -32.662778 34.955369 6770.7557 81417904. 0.019334120 0.088712650 -32.721159 34.858070 6772.7391 79983136. 0.015253804 0.093523282 -32.777565 34.760777 6774.7225 76867309. 0.010657845 0.098333913 -32.832045 34.663492 6776.7059 77829031. 0.0059034138 0.10314454 -32.886524 34.566207 6778.6893 72304412. -0.00092727187 0.10795518 -32.948291 34.455909 6780.6727 64967628. -0.012381548 0.11276581 -33.010555 34.344723 6782.6562 59696535. -0.059506967 0.11757644 -33.067465 34.245773 6784.6396 53292829. -0.032259066 0.12238707 -33.121945 34.152378 6786.6230 55186738. 0.046875615 0.12719770 -33.176425 34.058524