# # 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 = 60.087681 km # Date (UTC) = 2013-12-06T10:34:12.131 # Date (julian) = 2456632.94041818 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6497.9925 5.6462045e+10 0.036308431 0.031677856 96.620308 28.890124 6500.2972 5.2181575e+10 0.044475162 0.032372842 96.672561 28.778328 6502.6020 4.8443510e+10 0.052980266 0.033067827 96.724815 28.665786 6504.9067 4.4953261e+10 0.061852124 0.033762812 96.779201 28.548649 6507.2114 4.1358652e+10 0.071048267 0.034457798 96.837983 28.422037 6509.5162 3.7907946e+10 0.080640866 0.035152783 96.896014 28.297507 6511.8209 3.4807728e+10 0.090777187 0.035847769 96.948265 28.188985 6514.1256 3.2170345e+10 0.10160966 0.036542754 97.000515 28.080464 6516.4304 2.9861541e+10 0.11315058 0.037237740 97.052772 27.969411 6518.7351 2.7762378e+10 0.12537975 0.037932725 97.105032 27.856854 6521.0398 2.5722900e+10 0.13815991 0.038627711 97.158202 27.742967 6523.3445 2.3580553e+10 0.14748425 0.039264508 97.216985 27.620877 6525.6493 2.1499964e+10 0.15385897 0.039708114 97.275768 27.498788 6527.9540 1.9546815e+10 0.16020288 0.041409094 97.328491 27.385558 6530.2587 1.7916359e+10 0.16567565 0.044190928 97.380745 27.273016 6532.5635 1.6557861e+10 0.17035739 0.047154913 97.431228 27.162243 6534.8682 1.5338524e+10 0.17338919 0.048187427 97.479458 27.053722 6537.1729 1.4184797e+10 0.17482591 0.048766756 97.527688 26.945200 6539.4777 1.3024746e+10 0.17528610 0.050221827 97.585968 26.819455 6541.7824 1.1880799e+10 0.17390683 0.051072805 97.644755 26.692843 6544.0871 1.0818638e+10 0.17164199 0.051715025 97.695728 26.579617 6546.3919 9.9306807e+09 0.16943861 0.052786960 97.743964 26.471080 6548.6966 9.2086021e+09 0.16746955 0.053875670 97.793217 26.362547 6551.0013 8.5862499e+09 0.16552726 0.055236213 97.845471 26.254025 6553.3060 8.0442319e+09 0.16408325 0.055181221 97.897724 26.145503 6555.6108 7.5727064e+09 0.16189393 0.054340165 97.946900 26.033906 6557.9155 7.1530406e+09 0.15993409 0.053292264 97.995130 25.921364 6560.2202 6.7382826e+09 0.15745155 0.052075734 98.045031 25.806177 6562.5250 6.2968504e+09 0.15482970 0.050380375 98.099295 25.684087 6564.8297 5.8617780e+09 0.15257506 0.048395577 98.153163 25.562885 6567.1344 5.4570743e+09 0.15070279 0.046503522 98.201400 25.454349 6569.4392 5.1269531e+09 0.14899189 0.044881007 98.249636 25.345812 6571.7439 4.8470862e+09 0.14753227 0.044300103 98.297871 25.234961 6574.0486 4.6073415e+09 0.14510811 0.042831652 98.346104 25.122420 6576.3534 4.3771923e+09 0.14288549 0.040964675 98.394880 25.009020 6578.6581 4.1206237e+09 0.14017330 0.037610420 98.449143 24.886930 6580.9628 3.8659858e+09 0.13755118 0.035630972 98.503407 24.764840 6583.2675 3.6232324e+09 0.13545749 0.034886246 98.552370 24.654668 6585.5723 3.4196629e+09 0.13287561 0.033513250 98.600600 24.546146 6587.8770 3.2537295e+09 0.13047713 0.033352681 98.648832 24.437623 6590.1817 3.0949025e+09 0.12765032 0.030724004 98.697065 24.329101 6592.4865 2.9497137e+09 0.12476452 0.027601015 98.745298 24.220578 6594.7912 2.8191557e+09 0.12228122 0.025738192 98.789908 24.112043 6597.0959 2.6935421e+09 0.11988505 0.025692455 98.834127 24.003507 6599.4007 2.5640476e+09 0.11863717 0.024953828 98.882513 23.889348 6601.7054 2.4231293e+09 0.11881226 0.027377890 98.936777 23.767258 6604.0101 2.2769974e+09 0.11772917 0.026077288 98.988995 23.647927 6606.3149 2.1471535e+09 0.11767771 0.026938180 99.033205 23.539405 6608.6196 2.0429577e+09 0.11517416 0.023715990 99.077415 23.430882 6610.9243 1.9538902e+09 0.11216603 0.024886142 99.124504 23.322360 6613.2290 1.8821525e+09 0.11110864 0.023657628 99.172737 23.213837 6615.5338 1.8069896e+09 0.10971564 0.023267954 99.221313 23.102228 6617.8385 1.7242883e+09 0.10890567 0.023717254 99.271054 22.980140 6620.1432 1.6416178e+09 0.10827534 0.024813356 99.320706 22.858267 6622.4480 1.5580368e+09 0.10695955 0.024638758 99.364925 22.749730 6624.7527 1.4912234e+09 0.10524635 0.025265226 99.409144 22.641193 6627.0574 1.4247735e+09 0.10309717 0.025338995 99.458670 22.525495 6629.3622 1.3566283e+09 0.10188020 0.026043625 99.512933 22.403406 6631.6669 1.2944105e+09 0.099932780 0.025998509 99.564012 22.285615 6633.9716 1.2353638e+09 0.098186338 0.026321888 99.608225 22.177092 6636.2764 1.1882856e+09 0.096339914 0.026442433 99.652438 22.068570 6638.5811 1.1395563e+09 0.094869835 0.025646326 99.696648 21.960048 6640.8858 1.0948889e+09 0.094945760 0.025162271 99.740859 21.851525 6643.1905 1.0559216e+09 0.094261880 0.025221389 99.786954 21.738378 6645.4953 1.0060055e+09 0.093241401 0.025683703 99.836695 21.616288 6647.8000 9.6105861e+08 0.092345875 0.026858988 99.885720 21.495952 6650.1047 9.1524050e+08 0.091792100 0.026279215 99.929939 21.387416 6652.4095 8.8052870e+08 0.091370725 0.027363182 99.974158 21.278879 6654.7142 8.5226517e+08 0.090407891 0.027731970 100.01902 21.164546 6657.0189 8.1070743e+08 0.088582638 0.028923070 100.06424 21.046978 6659.3237 7.7195047e+08 0.087158252 0.031767082 100.10902 20.933302 6661.6284 7.3719979e+08 0.085802159 0.032855003 100.15323 20.824779 6663.9331 7.0965904e+08 0.084341564 0.032224622 100.19745 20.716256 6666.2379 6.8536071e+08 0.084319070 0.026954944 100.24687 20.594950 6668.5426 6.5607817e+08 0.083274494 0.027950923 100.29661 20.472861 6670.8473 6.2455407e+08 0.083096735 0.026936085 100.34231 20.360687 6673.1520 5.9925089e+08 0.082598436 0.027686612 100.38652 20.252165 6675.4568 5.7610486e+08 0.080562859 0.030673251 100.43098 20.141441 6677.7615 5.5359202e+08 0.078869137 0.031275656 100.47621 20.023856 6680.0662 5.3221567e+08 0.078887127 0.029455720 100.52140 19.906558 6682.3710 5.0966702e+08 0.079503355 0.030707977 100.56561 19.798035 6684.6757 4.9043672e+08 0.079366399 0.032688381 100.60983 19.689513 6686.9804 4.7053163e+08 0.077600839 0.034331514 100.65459 19.576072 6689.2852 4.5050307e+08 0.074638865 0.033759334 100.69981 19.458503 6691.5899 4.3166824e+08 0.073464839 0.032862087 100.74469 19.343941 6693.8946 4.1627883e+08 0.072285037 0.031297178 100.78890 19.235419 6696.1994 4.0333419e+08 0.072018321 0.029758612 100.83311 19.126897 6698.5041 3.9045144e+08 0.070942100 0.030909730 100.87818 19.010738 6700.8088 3.7557180e+08 0.069096051 0.031267638 100.92340 18.893170 6703.1135 3.5975283e+08 0.068704271 0.033959360 100.96862 18.772741 6705.4183 3.4725660e+08 0.068776602 0.037412216 101.01383 18.650651 6707.7230 3.3140187e+08 0.068441498 0.040083257 101.05694 18.535965 6710.0277 3.1954528e+08 0.067266759 0.040501924 101.09714 18.431447 6712.3325 3.0999635e+08 0.064909199 0.042447240 101.13733 18.326930 6714.6372 2.9696149e+08 0.062690366 0.047351313 101.18644 18.206006 6716.9419 2.8798368e+08 0.060448610 0.049788736 101.23618 18.083916 6719.2467 2.7306912e+08 0.058151115 0.051135494 101.28266 17.965092 6721.5514 2.6137301e+08 0.058356112 0.050470036 101.32787 17.847525 6723.8561 2.5521586e+08 0.056261134 0.049846417 101.37053 17.736630 6726.1609 2.4614181e+08 0.052003578 0.040952818 101.41072 17.632127 6728.4656 2.3920425e+08 0.051058493 0.040287983 101.45103 17.527225 6730.7703 2.3075932e+08 0.049095793 0.041435097 101.49625 17.405135 6733.0750 2.2022666e+08 0.047517163 0.044331743 101.54147 17.283045 6735.3798 2.1245656e+08 0.047657051 0.049696592 101.58669 17.164623 6737.6845 2.0422235e+08 0.048910333 0.056316075 101.63190 17.047055 6739.9892 1.9538842e+08 0.048556531 0.064037189 101.67712 16.929487 6742.2940 1.9022786e+08 0.045531692 0.069327057 101.72234 16.811919 6744.5987 1.8209191e+08 0.040841762 0.078256490 101.76580 16.694344 6746.9034 1.7577156e+08 0.036054308 0.068483911 101.80650 16.576759 6749.2082 1.7250452e+08 0.035022013 0.072220939 101.84801 16.459177 6751.5129 1.6471297e+08 0.031182163 0.073928524 101.89323 16.341609 6753.8176 1.5727821e+08 0.028851955 0.075623259 101.93845 16.224041 6756.1224 1.5258232e+08 0.025958730 0.074481737 101.98367 16.102106 6758.4271 1.4464119e+08 0.025332298 0.074608445 102.02888 15.980016 6760.7318 1.3881442e+08 0.025492292 0.077456805 102.07410 15.861337 6763.0365 1.3394358e+08 0.030416848 0.076549059 102.11932 15.743769 6765.3413 1.2577026e+08 0.032484797 0.079593494 102.16208 15.626201 6767.6460 1.2193378e+08 0.030579804 0.081252408 102.20278 15.508634 6769.9507 1.1861652e+08 0.025380644 0.086760213 102.24498 15.391066 6772.2555 1.1412526e+08 0.020934867 0.092350199 102.29020 15.273499 6774.5602 1.1155146e+08 0.016591385 0.097940184 102.33487 15.155931 6776.8649 1.0666477e+08 0.012158281 0.10353017 102.37557 15.038363 6779.1697 1.0117012e+08 0.0076955552 0.10912015 102.41626 14.920795 6781.4744 96162615. 0.0032621248 0.11471014 102.46106 14.803227 6783.7791 90268466. -0.0012356123 0.12030013 102.50628 14.685658 6786.0839 88257141. -0.0054517915 0.12589011 102.54835 14.568091 6788.3886 89961894. -0.0093705950 0.13148010 102.58905 14.450523 6790.6933 92604605. -0.013217192 0.13707008 102.63194 14.332947 6792.9980 93365989. -0.017192579 0.14266007 102.67717 14.215362 6795.3028 87576621. -0.021624912 0.14825005 102.72115 14.099020 6797.6075 82929984. -0.025996952 0.15384004 102.76185 13.985975 6799.9122 78034215. -0.030424847 0.15943002 102.80324 13.871595 6802.2170 74824381. -0.034748429 0.16502001 102.85491 13.737229 6804.5217 72440010. -0.039056259 0.17060999 102.90519 13.605005 6806.8264 69303928. -0.043552115 0.17619998 102.94589 13.487437 6809.1312 68125657. -0.047934930 0.18178996 102.98658 13.369868 6811.4359 63835483. -0.052938350 0.18737995 103.02728 13.252301 6813.7406 60123930. -0.058206442 0.19296993 103.06798 13.134733 6816.0454 55360194. -0.064242948 0.19855992 103.11277 13.005330 6818.3501 53115407. -0.070525673 0.20414990 103.15928 12.870964 6820.6548 52221353. -0.077593721 0.20973989 103.20132 12.753005 6822.9595 51077839. -0.086923392 0.21532988 103.24202 12.639959 6825.2643 49318366. -0.10285137 0.22091986 103.28884 12.515015 6827.5690 49345013. -0.17061895 0.22650985 103.34052 12.380648 6829.8737 48378689. -0.12239066 0.23209983 103.38536 12.256748 6832.1785 46744826. -0.0085780926 0.23768982 103.42605 12.139180