# # 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 = 58.286049 km # Date (UTC) = 2013-12-26T10:01:10.766 # Date (julian) = 2456652.91748572 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6492.9700 6.9580592e+10 0.026595922 0.030163339 104.70409 32.236641 6495.4809 6.2495761e+10 0.034205493 0.030920480 104.76978 32.118397 6497.9917 5.6362769e+10 0.041501240 0.031677621 104.83511 32.000154 6500.5026 5.1560461e+10 0.048687993 0.032434763 104.89641 31.881927 6503.0134 4.7415613e+10 0.055990556 0.033191904 104.95771 31.763700 6505.5243 4.3744936e+10 0.063642051 0.033949046 105.02252 31.645472 6508.0351 4.0493522e+10 0.071904392 0.034706187 105.08820 31.527243 6510.5460 3.7275022e+10 0.080839223 0.035463328 105.15558 31.398850 6513.0569 3.4104092e+10 0.090599522 0.036220470 105.22454 31.260916 6515.5677 3.1123037e+10 0.10134463 0.036977611 105.29192 31.132549 6518.0786 2.8464240e+10 0.11328169 0.037734752 105.35761 31.014304 6520.5894 2.6253872e+10 0.12667874 0.038491894 105.42242 30.896950 6523.1003 2.4298533e+10 0.13834625 0.039203965 105.48372 30.783101 6525.6111 2.2455159e+10 0.14651064 0.039712468 105.54502 30.669252 6528.1220 2.0779294e+10 0.15497043 0.041539251 105.60632 30.551379 6530.6328 1.9198792e+10 0.16234295 0.044714654 105.66763 30.433151 6533.1437 1.7788048e+10 0.16957361 0.047580650 105.72893 30.314923 6535.6545 1.6531812e+10 0.17314401 0.047940359 105.79023 30.196696 6538.1654 1.5335301e+10 0.17590675 0.049237220 105.85423 30.073276 6540.6763 1.4114320e+10 0.17570567 0.051173581 105.92320 29.940267 6543.1871 1.2890217e+10 0.17345091 0.051431000 105.98970 29.812002 6545.6980 1.1766833e+10 0.17063062 0.052461820 106.05102 29.693759 6548.2088 1.0814279e+10 0.16857517 0.053730005 106.11233 29.575515 6550.7197 1.0030557e+10 0.16636173 0.055165558 106.17363 29.457287 6553.2305 9.3241343e+09 0.16445426 0.055219187 106.23493 29.339058 6555.7414 8.6682128e+09 0.16189071 0.054230432 106.29293 29.220831 6558.2522 8.0801542e+09 0.15963849 0.053024374 106.34986 29.102604 6560.7631 7.5479588e+09 0.15653271 0.051586292 106.40884 28.984376 6563.2739 7.0681006e+09 0.15380185 0.049611485 106.47014 28.866147 6565.7848 6.6220780e+09 0.15108754 0.047427257 106.53063 28.748734 6568.2956 6.2169371e+09 0.14919592 0.045499894 106.58756 28.634870 6570.8065 5.8273995e+09 0.14734952 0.044583430 106.64450 28.521005 6573.3174 5.4386676e+09 0.14528977 0.043402813 106.70785 28.389847 6575.8282 5.0465126e+09 0.14276925 0.041543756 106.77189 28.256838 6578.3391 4.6688639e+09 0.14004597 0.038114197 106.82972 28.136739 6580.8499 4.3543724e+09 0.13699345 0.035735309 106.88665 28.018510 6583.3608 4.0937991e+09 0.13441180 0.034839061 106.94357 27.902864 6585.8716 3.8648728e+09 0.13135539 0.033273930 107.00049 27.789015 6588.3825 3.6422737e+09 0.12879614 0.033252201 107.05742 27.673821 6590.8933 3.4344229e+09 0.12509354 0.029400330 107.11435 27.555578 6593.4042 3.2435947e+09 0.12172803 0.026726451 107.17128 27.437335 6595.9150 3.0769228e+09 0.11799417 0.025718463 107.22821 27.319107 6598.4259 2.9182305e+09 0.11563800 0.025203829 107.28513 27.200879 6600.9367 2.7465732e+09 0.11552229 0.026915654 107.34732 27.075370 6603.4476 2.5763993e+09 0.11469710 0.026398295 107.41136 26.947287 6605.9585 2.4168069e+09 0.11446729 0.027469111 107.47035 26.826190 6608.4693 2.2724336e+09 0.11209184 0.023719963 107.52728 26.707962 6610.9802 2.1541348e+09 0.10884047 0.024939503 107.58234 26.591596 6613.4910 2.0458792e+09 0.10790683 0.023753746 107.63489 26.477746 6616.0019 1.9444220e+09 0.10636294 0.023282593 107.68805 26.363275 6618.5127 1.8616825e+09 0.10570382 0.024157965 107.74498 26.245032 6621.0236 1.7749736e+09 0.10483326 0.025081631 107.80191 26.126789 6623.5344 1.6794773e+09 0.10307637 0.024689825 107.86072 26.000103 6626.0453 1.5841040e+09 0.10170136 0.026533203 107.91984 25.872021 6628.5561 1.4904534e+09 0.099881356 0.025928894 107.97351 25.752098 6631.0670 1.4117772e+09 0.097933912 0.025937571 108.02606 25.633870 6633.5778 1.3464013e+09 0.096183413 0.026253140 108.07861 25.518026 6636.0887 1.2854380e+09 0.094199424 0.026515305 108.13115 25.404177 6638.5996 1.2241429e+09 0.092727601 0.025645521 108.18669 25.285334 6641.1104 1.1613057e+09 0.092910931 0.025148675 108.25073 25.152324 6643.6213 1.1007402e+09 0.091844900 0.025286422 108.31213 25.023731 6646.1321 1.0407722e+09 0.090318078 0.025988537 108.36468 24.909868 6648.6430 9.9191793e+08 0.088649799 0.027394693 108.41723 24.796004 6651.1538 9.4648523e+08 0.087827399 0.026602052 108.46977 24.682154 6653.6647 9.0226130e+08 0.087171503 0.027865024 108.52232 24.568305 6656.1755 8.6234448e+08 0.085340711 0.028177485 108.57596 24.441743 6658.6864 8.1842038e+08 0.083799749 0.031278406 108.63015 24.308734 6661.1972 7.8018399e+08 0.082393466 0.032635410 108.68329 24.187864 6663.7081 7.4289923e+08 0.081029952 0.032286981 108.73584 24.074015 6666.2190 7.0861935e+08 0.080999334 0.026951261 108.78838 23.960160 6668.7298 6.7919126e+08 0.079865646 0.028116601 108.84094 23.846295 6671.2407 6.5072716e+08 0.079801227 0.026868778 108.89393 23.731486 6673.7515 6.2513822e+08 0.079057003 0.028583162 108.95305 23.603404 6676.2624 5.9345737e+08 0.076602259 0.031882819 109.01176 23.475841 6678.7732 5.6623097e+08 0.075489592 0.030419450 109.05993 23.361992 6681.2841 5.4124561e+08 0.076423439 0.029875297 109.10810 23.248143 6683.7949 5.1436018e+08 0.076787502 0.032353560 109.16450 23.119871 6686.3058 4.9392512e+08 0.075779137 0.033938994 109.22362 22.986863 6688.8166 4.6785410e+08 0.072496879 0.033973698 109.27482 22.867704 6691.3275 4.4537991e+08 0.071121617 0.032923996 109.32298 22.753854 6693.8383 4.2759845e+08 0.069791338 0.031316484 109.37380 22.633754 6696.3492 4.0928624e+08 0.069305184 0.029820871 109.42798 22.505671 6698.8601 3.9200308e+08 0.067766401 0.031398341 109.48419 22.377581 6701.3709 3.7126000e+08 0.065537393 0.031953675 109.54332 22.249479 6703.8818 3.4890015e+08 0.065344774 0.035881686 109.59828 22.126787 6706.3926 3.2927702e+08 0.065150198 0.039129723 109.64645 22.012938 6708.9035 3.2065680e+08 0.064359354 0.041027426 109.69520 21.897725 6711.4143 3.1207430e+08 0.062220888 0.041163621 109.74939 21.769642 6713.9252 2.9989676e+08 0.059672378 0.047032797 109.80318 21.642497 6716.4360 2.8859012e+08 0.057528038 0.049043596 109.85134 21.528647 6718.9469 2.7790386e+08 0.054692067 0.051287119 109.89951 21.414798 6721.4577 2.6975994e+08 0.054902235 0.050441818 109.95239 21.289816 6723.9686 2.5935583e+08 0.052753090 0.049909146 110.00657 21.161734 6726.4794 2.4618074e+08 0.048455825 0.040955692 110.06076 21.033652 6728.9903 2.3337878e+08 0.047662746 0.041031684 110.11495 20.905570 6731.5012 2.2196066e+08 0.045323767 0.042747420 110.16914 20.777488 6734.0120 2.0982070e+08 0.043718281 0.049352877 110.22333 20.649404 6736.5229 2.0135310e+08 0.045414842 0.052331729 110.27335 20.534198 6739.0337 1.9406936e+08 0.046084892 0.062867817 110.32152 20.424713 6741.5446 1.9094087e+08 0.044008224 0.067311846 110.37014 20.307623 6744.0554 1.8154729e+08 0.038476220 0.077836283 110.41941 20.179540 6746.5663 1.7060117e+08 0.034720677 0.072403625 110.47053 20.051458 6749.0771 1.6364149e+08 0.032450973 0.072256814 110.52472 19.923376 6751.5880 1.5501862e+08 0.027955016 0.073960276 110.57891 19.795293 6754.0988 1.5096844e+08 0.025554561 0.076054519 110.63310 19.667211 6756.6097 1.4515748e+08 0.022181672 0.075735750 110.68572 19.539128 6759.1206 1.3756087e+08 0.022313407 0.075849045 110.73498 19.411045 6761.6314 1.3283402e+08 0.024515511 0.078020391 110.78567 19.284386 6764.1423 1.2648978e+08 0.028545335 0.079490101 110.83986 19.161230 6766.6531 1.2208761e+08 0.029363118 0.081191102 110.89277 19.036797 6769.1640 1.1911332e+08 0.024179022 0.084851954 110.94203 18.908715 6771.6748 1.1266361e+08 0.019386539 0.090941879 110.99243 18.780628 6774.1857 1.0914659e+08 0.014783219 0.097031804 111.04662 18.652526 6776.6965 1.0446485e+08 0.010129072 0.10312173 111.09983 18.525412 6779.2074 1.0039270e+08 0.0055411303 0.10921165 111.14910 18.402256 6781.7182 95820113. 0.00093788946 0.11530158 111.19836 18.278264 6784.2291 91371498. -0.0036435026 0.12139150 111.24762 18.150181 6786.7399 87514323. -0.0081573446 0.12748143 111.29689 18.022788 6789.2508 84417414. -0.012585431 0.13357135 111.34615 17.899631 6791.7617 80557351. -0.017076876 0.13966128 111.39595 17.775934 6794.2725 77059509. -0.021536128 0.14575120 111.45014 17.647852 6796.7834 75159587. -0.025830146 0.15184113 111.50450 17.518757 6799.2942 72159491. -0.030258051 0.15793105 111.56080 17.378004 6801.8051 69605353. -0.034670357 0.16402098 111.61496 17.241100 6804.3159 66584909. -0.039193009 0.17011090 111.66422 17.113016 6806.8268 68679204. -0.043171747 0.17620083 111.71349 16.986282 6809.3376 67637377. -0.047613755 0.18229075 111.76275 16.863126 6811.8485 64844762. -0.052402758 0.18838068 111.81373 16.734306 6814.3593 60085860. -0.057693799 0.19447060 111.87003 16.587923 6816.8702 55833648. -0.063299538 0.20056053 111.92304 16.452403 6819.3810 54492663. -0.068823927 0.20665045 111.97230 16.329247 6821.8919 51175088. -0.075505399 0.21274038 112.02464 16.198388 6824.4028 49602822. -0.082961885 0.21883030 112.08094 16.057635 6826.9136 44526962. -0.094419259 0.22492023 112.12933 15.925264 6829.4245 43558795. -0.11064803 0.23101015 112.17367 15.797181 6831.9353 45484144. -0.17558275 0.23710008 112.22556 15.661095 6834.4462 45490047. -0.12876197 0.24319000 112.28186 15.520342 6836.9570 45611304. -0.023078384 0.24927993 112.33214 15.394643