# # 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 = 57.555089 km # Date (UTC) = 2013-11-30T10:43:54.331 # Date (julian) = 2456626.94715661 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6507.7109 5.0900745e+10 0.078934677 0.034608399 94.284466 28.619606 6509.8909 4.6756709e+10 0.088920952 0.035265782 94.340046 28.499845 6512.0709 4.2678371e+10 0.099035526 0.035923164 94.391390 28.380083 6514.2510 3.9077753e+10 0.10936742 0.036580546 94.442718 28.260322 6516.4310 3.6082892e+10 0.12000752 0.037237928 94.492786 28.149380 6518.6110 3.3662634e+10 0.13102558 0.037895311 94.542216 28.042913 6520.7910 3.1558724e+10 0.14236494 0.038552693 94.591710 27.936003 6522.9711 2.9600472e+10 0.15128579 0.039171538 94.643037 27.816242 6525.1511 2.7615653e+10 0.15725983 0.039764970 94.694364 27.696481 6527.3311 2.5507924e+10 0.16150707 0.040956877 94.748664 27.579694 6529.5112 2.3390875e+10 0.16472508 0.043050023 94.804266 27.464209 6531.6912 2.1465697e+10 0.16761761 0.046234719 94.856302 27.351953 6533.8712 1.9866898e+10 0.16926050 0.047889831 94.901926 27.245501 6536.0513 1.8541762e+10 0.16917751 0.047836360 94.947549 27.139050 6538.2313 1.7307653e+10 0.17081705 0.049269304 94.997320 27.022920 6540.4113 1.5993536e+10 0.17108521 0.051048418 95.048648 26.903159 6542.5913 1.4681534e+10 0.16997724 0.051226745 95.097757 26.788570 6544.7714 1.3564206e+10 0.16922720 0.052270102 95.143383 26.682104 6546.9514 1.2641197e+10 0.16786691 0.053247379 95.189010 26.575637 6549.1314 1.1867359e+10 0.16582846 0.054100223 95.238964 26.459078 6551.3115 1.1141930e+10 0.16427252 0.055345080 95.290292 26.339317 6553.4915 1.0424935e+10 0.16250367 0.055087999 95.341619 26.219556 6555.6715 9.7095114e+09 0.16044314 0.054289123 95.392946 26.099795 6557.8516 9.0377542e+09 0.15866393 0.053332350 95.443799 25.981457 6560.0316 8.4391883e+09 0.15649498 0.052245830 95.489420 25.878807 6562.2116 7.9168196e+09 0.15391738 0.050678543 95.535040 25.776156 6564.3916 7.4769274e+09 0.15137507 0.048594103 95.583246 25.665756 6566.5717 7.0425253e+09 0.14957011 0.046859489 95.634573 25.545995 6568.7517 6.6097445e+09 0.14798322 0.045080665 95.685409 25.426234 6570.9317 6.1581123e+09 0.14684790 0.044531552 95.732458 25.306473 6573.1118 5.7217233e+09 0.14557607 0.043567791 95.779507 25.186712 6575.2918 5.3434997e+09 0.14384967 0.042081944 95.825453 25.080234 6577.4718 5.0419891e+09 0.14175795 0.039479246 95.871083 24.977569 6579.6519 4.7927978e+09 0.13935694 0.036712143 95.916921 24.872391 6581.8319 4.5345405e+09 0.13724479 0.035344702 95.963967 24.752631 6584.0119 4.2727813e+09 0.13512160 0.034509019 96.011013 24.632870 6586.1919 4.0255720e+09 0.13316011 0.033168815 96.056908 24.526952 6588.3720 3.8319590e+09 0.13135637 0.033255708 96.102531 24.424301 6590.5520 3.6666925e+09 0.12866499 0.030035245 96.148410 24.318592 6592.7320 3.4956327e+09 0.12594314 0.027362493 96.195459 24.198831 6594.9121 3.3173237e+09 0.12312761 0.025671841 96.242508 24.079069 6597.0921 3.1282058e+09 0.12037499 0.025693664 96.289558 23.962905 6599.2721 2.9476006e+09 0.11885429 0.024946097 96.336607 23.847421 6601.4522 2.7862062e+09 0.11907865 0.027258631 96.381027 23.736478 6603.6322 2.6473364e+09 0.11814981 0.026289019 96.422848 23.630026 6605.8122 2.5342382e+09 0.11794595 0.027346431 96.464669 23.523573 6607.9922 2.4272507e+09 0.11609363 0.023747675 96.511052 23.409241 6610.1723 2.3146688e+09 0.11334115 0.024167588 96.558101 23.293756 6612.3523 2.1918371e+09 0.11159387 0.024057519 96.605154 23.175976 6614.5323 2.0636271e+09 0.11089054 0.023573731 96.652210 23.056197 6616.7124 1.9477333e+09 0.10976396 0.023394106 96.698236 22.939790 6618.8924 1.8582058e+09 0.10920197 0.024444664 96.740057 22.837140 6621.0724 1.7860144e+09 0.10843046 0.025065439 96.781877 22.734491 6623.2525 1.7214141e+09 0.10682085 0.024585359 96.826660 22.624569 6625.4325 1.6528031e+09 0.10543539 0.025913696 96.873710 22.509085 6627.6125 1.5710491e+09 0.10355891 0.025553418 96.920758 22.392623 6629.7926 1.4896665e+09 0.10233836 0.025965809 96.967804 22.272861 6631.9726 1.4146733e+09 0.10053230 0.026029560 97.014850 22.153100 6634.1526 1.3526411e+09 0.098901543 0.026337975 97.057243 22.048579 6636.3326 1.3076283e+09 0.097120735 0.026420574 97.099063 21.945929 6638.5127 1.2643873e+09 0.095702639 0.025649307 97.141132 21.839938 6640.6927 1.2139592e+09 0.095679779 0.025185899 97.183907 21.724453 6642.8727 1.1624872e+09 0.095092901 0.025187410 97.226682 21.608968 6645.0528 1.1074987e+09 0.093959706 0.025476402 97.273402 21.493468 6647.2328 1.0573011e+09 0.092782259 0.026560346 97.320455 21.377967 6649.4128 1.0088687e+09 0.091907427 0.027064631 97.362227 21.267757 6651.5929 9.6577402e+08 0.091642958 0.026938502 97.400248 21.161304 6653.7729 9.3198538e+08 0.091117241 0.027920268 97.438269 21.054852 6655.9529 9.0011562e+08 0.089425372 0.028003962 97.484907 20.939780 6658.1329 8.6589635e+08 0.088001593 0.030296858 97.531956 20.824297 6660.3130 8.2743543e+08 0.086618103 0.031910476 97.576368 20.708813 6662.4930 7.8505249e+08 0.085336912 0.032767667 97.619140 20.593328 6664.6730 7.4648009e+08 0.084506964 0.029743484 97.660588 20.481417 6666.8531 7.1745591e+08 0.084207622 0.027074825 97.698606 20.378767 6669.0331 6.9498937e+08 0.082834547 0.028321712 97.736624 20.276116 6671.2131 6.7445376e+08 0.082790197 0.026868385 97.780496 20.165147 6673.3932 6.4971864e+08 0.082131488 0.028047209 97.827545 20.049663 6675.5732 6.1972049e+08 0.080108999 0.030896217 97.873269 19.934174 6677.7532 5.9095388e+08 0.078583896 0.031287444 97.916046 19.818674 6679.9332 5.6781877e+08 0.078504449 0.029496579 97.958824 19.703174 6682.1133 5.4405818e+08 0.079083469 0.030511090 98.001595 19.587689 6684.2933 5.2184958e+08 0.079040695 0.032668976 98.044366 19.472205 6686.4733 4.9655507e+08 0.077879423 0.034036478 98.087140 19.356721 6688.6534 4.7197750e+08 0.074981044 0.033936009 98.129914 19.241236 6690.8334 4.5235006e+08 0.073552873 0.033020356 98.171278 19.129558 6693.0134 4.3889257e+08 0.072542642 0.031599483 98.209296 19.026907 6695.1935 4.2808072e+08 0.071852773 0.029823938 98.247314 18.924257 6697.3735 4.0970420e+08 0.071298465 0.030138531 98.288499 18.813056 6699.5535 3.9408961e+08 0.069929823 0.031079694 98.331270 18.697573 6701.7335 3.7568349e+08 0.068249886 0.032485768 98.374042 18.582090 6703.9136 3.5988301e+08 0.068500969 0.035961296 98.416813 18.466606 6706.0936 3.4888564e+08 0.068490484 0.038609321 98.459584 18.351122 6708.2736 3.3516468e+08 0.068106542 0.040341560 98.502355 18.239873 6710.4537 3.2687718e+08 0.066652700 0.040585295 98.545126 18.128666 6712.6337 3.1636321e+08 0.064547234 0.043006524 98.587900 18.014669 6714.8137 3.0244027e+08 0.062528657 0.047364585 98.630674 17.899185 6716.9938 2.8895981e+08 0.060501762 0.049865075 98.672105 17.783695 6719.1738 2.7706044e+08 0.058291194 0.051204727 98.710603 17.668194 6721.3538 2.7009422e+08 0.058588129 0.050410506 98.749102 17.552693 6723.5338 2.6037765e+08 0.057018823 0.049666681 98.791774 17.437210 6725.7139 2.4896850e+08 0.052920202 0.041130094 98.834545 17.321726 6727.8939 2.3957298e+08 0.051946902 0.039769443 98.877316 17.208975 6730.0739 2.3066486e+08 0.050569275 0.040480282 98.920087 17.097768 6732.2540 2.2552134e+08 0.048829495 0.043786964 98.961573 16.985275 6734.4340 2.1786665e+08 0.048148167 0.049327487 99.000069 16.869790 6736.6140 2.0646897e+08 0.049819310 0.052676382 99.038566 16.754306 6738.7941 1.9664501e+08 0.050641063 0.061692758 99.081177 16.638822 6740.9741 1.8668295e+08 0.049578718 0.065714428 99.123948 16.523338 6743.1541 1.8166496e+08 0.045782578 0.072087133 99.164049 16.410526 6745.3342 1.7686730e+08 0.042890075 0.078707361 99.202545 16.299320 6747.5142 1.7497157e+08 0.038431433 0.067184148 99.242267 16.186887 6749.6942 1.7174649e+08 0.036661530 0.072087857 99.285038 16.071403 6751.8742 1.6657065e+08 0.033447193 0.074081305 99.327809 15.955920 6754.0543 1.6085896e+08 0.032093670 0.076126196 99.366522 15.844493 6756.2343 1.5524606e+08 0.029494344 0.074769801 99.405015 15.733286 6758.4143 1.5054927e+08 0.029304187 0.074581482 99.446870 15.609389 6760.5944 1.4642036e+08 0.029730454 0.077194692 99.490866 15.477405 6762.7744 1.4199868e+08 0.034506262 0.076801688 99.534170 15.357162 6764.9544 1.3510179e+08 0.037084936 0.079529009 99.576942 15.245955 6767.1345 1.3032518e+08 0.036722300 0.081825214 99.618742 15.133773 6769.3145 1.2381417e+08 0.031853534 0.085217019 99.657241 15.018272 6771.4945 1.2188111e+08 0.027855946 0.090504551 99.695740 14.902772 6773.6745 1.2056511e+08 0.023865109 0.095792083 99.734237 14.791090 6775.8546 1.1674654e+08 0.019900713 0.10107961 99.772733 14.679884 6778.0346 1.1167993e+08 0.015952295 0.10636715 99.814260 14.559915 6780.2146 1.0494879e+08 0.012019692 0.11165468 99.858253 14.432819 6782.3947 1.0013649e+08 0.0080915453 0.11694221 99.899466 14.311595 6784.5747 96562586. 0.0041706648 0.12222974 99.937963 14.196111 6786.7547 94032638. 0.00025336596 0.12751727 99.977176 14.081345 6788.9348 93154564. -0.0036473137 0.13280480 100.01995 13.970138 6791.1148 91973735. -0.0075214582 0.13809234 100.06272 13.858931 6793.2948 89942025. -0.011372330 0.14337987 100.10651 13.734540 6795.4748 86948240. -0.015211717 0.14866740 100.15050 13.607444 6797.6549 81606768. -0.019051078 0.15395493 100.19018 13.492807 6799.8349 79426328. -0.022897581 0.15924246 100.22868 13.381600 6802.0149 79536727. -0.026756716 0.16452999 100.26962 13.261125 6804.1950 76091749. -0.030630607 0.16981753 100.31362 13.129140 6806.3750 71450818. -0.034526278 0.17510506 100.35370 13.005474 6808.5550 65441047. -0.038468112 0.18039259 100.38792 12.894268 6810.7351 58585912. -0.042475319 0.18568012 100.42274 12.782070 6812.9151 53104075. -0.046576563 0.19096765 100.46674 12.654974 6815.0951 49343037. -0.050855786 0.19625518 100.51064 12.528149 6817.2751 49078287. -0.055352084 0.20154272 100.54914 12.416937 6819.4552 49216644. -0.061114677 0.20683025 100.58763 12.305730 6821.6352 48862565. -0.075517447 0.21211778 100.62986 12.183740 6823.8152 47605695. -0.071097799 0.21740531 100.67386 12.056644 6825.9953 47972762. -0.056366048 0.22269284 100.71437 11.939605