# # 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 = 68.095054 km # Date (UTC) = 2012-01-06T09:10:45.744 # Date (julian) = 2455932.88247389 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6500.5016 1.7230750e+11 0.050792510 0.032434460 113.99534 40.164502 6503.2937 1.4041442e+11 0.061894431 0.033276409 114.08299 40.037902 6506.0858 1.1562261e+11 0.073108404 0.034118358 114.17572 39.901422 6508.8779 9.6100310e+10 0.084542151 0.034960307 114.27432 39.753514 6511.6700 7.9978112e+10 0.096226932 0.035802256 114.37293 39.605607 6514.4621 6.6827541e+10 0.10825120 0.036644205 114.47153 39.457700 6517.2542 5.6501803e+10 0.12075881 0.037486154 114.57015 39.309774 6520.0462 4.8066029e+10 0.13376418 0.038328103 114.66877 39.161845 6522.8383 4.1297546e+10 0.14506782 0.039136781 114.76196 39.019348 6525.6304 3.5857029e+10 0.15076296 0.039710264 114.85341 38.878696 6528.4225 3.1699177e+10 0.15615428 0.041777681 114.93619 38.747225 6531.2146 2.8422203e+10 0.16033507 0.045541075 115.02009 38.613972 6534.0067 2.5601955e+10 0.16412146 0.047946438 115.11322 38.466065 6536.7988 2.2943768e+10 0.16628162 0.048505226 115.20635 38.319707 6539.5909 2.0451373e+10 0.16834973 0.050358915 115.29947 38.177277 6542.3830 1.8229608e+10 0.16878058 0.051147650 115.39260 38.032342 6545.1751 1.6285639e+10 0.16919445 0.052457136 115.48572 37.884437 6547.9672 1.4706781e+10 0.16813156 0.053655173 115.57232 37.746907 6550.7593 1.3422386e+10 0.16585527 0.055175481 115.65511 37.615418 6553.5514 1.2337074e+10 0.16296443 0.055057890 115.74071 37.474431 6556.3435 1.1322093e+10 0.15943058 0.053962627 115.82836 37.326523 6559.1356 1.0331176e+10 0.15610099 0.052371878 115.91601 37.182741 6561.9277 9.4177974e+09 0.15294171 0.050915543 116.00366 37.040311 6564.7198 8.5702334e+09 0.14979773 0.048445397 116.09130 36.892800 6567.5119 7.8260907e+09 0.14740303 0.046184391 116.17796 36.747068 6570.3040 7.2054118e+09 0.14552094 0.044791598 116.25587 36.620468 6573.0961 6.6897271e+09 0.14327424 0.043580398 116.33425 36.492835 6575.8882 6.2274203e+09 0.14045507 0.041483612 116.42189 36.344927 6578.6802 5.7598078e+09 0.13749857 0.037575425 116.50954 36.197020 6581.4723 5.2917930e+09 0.13487863 0.035453577 116.59719 36.049113 6584.2644 4.8816365e+09 0.13244715 0.034371462 116.67904 35.909668 6587.0565 4.5567094e+09 0.13003443 0.033170895 116.75209 35.783050 6589.8486 4.2725342e+09 0.12732774 0.031362376 116.83016 35.649107 6592.6407 4.0019201e+09 0.12387348 0.027451188 116.91781 35.501200 6595.4328 3.7300455e+09 0.12022150 0.025668456 117.00261 35.356133 6598.2249 3.4590776e+09 0.11696138 0.025299784 117.08479 35.213703 6601.0170 3.2094100e+09 0.11568786 0.027053700 117.16696 35.067478 6603.8091 2.9821767e+09 0.11340256 0.026184286 117.24913 34.919573 6606.6012 2.7836098e+09 0.11169497 0.026423628 117.32338 34.790151 6609.3933 2.6236524e+09 0.10698535 0.023822758 117.39642 34.663549 6612.1854 2.4745725e+09 0.10313279 0.024182236 117.47689 34.519604 6614.9775 2.3267812e+09 0.10139697 0.023267044 117.55905 34.371697 6617.7696 2.1748001e+09 0.10007774 0.023694401 117.64123 34.229206 6620.5617 2.0215337e+09 0.099662703 0.024948197 117.72251 34.085881 6623.3538 1.8809779e+09 0.098297328 0.024622892 117.79921 33.937951 6626.1459 1.7569920e+09 0.097006877 0.026405058 117.87468 33.797228 6628.9380 1.6558258e+09 0.095374845 0.026083916 117.94772 33.670627 6631.7301 1.5696849e+09 0.093597507 0.026004925 118.02179 33.537972 6634.5222 1.4881201e+09 0.092056006 0.026364931 118.09849 33.390065 6637.3142 1.4039917e+09 0.090521508 0.026007504 118.17518 33.244670 6640.1063 1.3193984e+09 0.090377402 0.025257641 118.25187 33.102239 6642.8984 1.2386115e+09 0.090329060 0.025188462 118.32856 32.956340 6645.6905 1.1628826e+09 0.089016723 0.025775173 118.40525 32.808433 6648.4826 1.0859170e+09 0.087673007 0.027287356 118.48195 32.664952 6651.2747 1.0150569e+09 0.086989119 0.026694700 118.55864 32.522524 6654.0668 9.5600637e+08 0.086127666 0.028007761 118.62697 32.395625 6656.8589 9.0453686e+08 0.083737945 0.028777279 118.69515 32.269005 6659.6510 8.6215990e+08 0.081725998 0.031698798 118.77123 32.122613 6662.4431 8.1931262e+08 0.079769325 0.032795665 118.84736 31.975274 6665.2352 7.7487506e+08 0.078705719 0.028161751 118.91858 31.832844 6668.0273 7.3204193e+08 0.077707486 0.027494927 118.99132 31.690414 6670.8194 6.9090497e+08 0.076832669 0.026949023 119.06801 31.547985 6673.6115 6.5271801e+08 0.075908198 0.028373735 119.14222 31.405556 6676.4036 6.1792802e+08 0.073127018 0.031973828 119.21343 31.263127 6679.1957 5.8665555e+08 0.072238297 0.030106076 119.28465 31.117264 6681.9878 5.5452100e+08 0.073657749 0.030415159 119.35587 30.969358 6684.7799 5.2337169e+08 0.074060114 0.032693667 119.42708 30.825841 6687.5720 4.9069599e+08 0.072087127 0.034023913 119.49829 30.683411 6690.3641 4.6619282e+08 0.069768307 0.033074143 119.56178 30.556431 6693.1561 4.4481916e+08 0.068744266 0.031550520 119.62508 30.429829 6695.9482 4.2859979e+08 0.068223148 0.029685292 119.69569 30.288609 6698.7403 4.1293900e+08 0.066938498 0.031234018 119.76692 30.146161 6701.5324 3.9246937e+08 0.064807590 0.032190679 119.83813 30.003732 6704.3245 3.7326441e+08 0.065003735 0.036336915 119.90935 29.861303 6707.1166 3.5070064e+08 0.064843225 0.040170120 119.98056 29.718874 6709.9087 3.3066525e+08 0.063845893 0.040554553 120.05178 29.574001 6712.7008 3.1332017e+08 0.061276413 0.043131139 120.12299 29.426094 6715.4929 2.9859814e+08 0.058758357 0.047882723 120.19081 29.281587 6718.2850 2.8613269e+08 0.055993796 0.050256289 120.25654 29.139158 6721.0771 2.7266060e+08 0.055529129 0.050327130 120.32663 28.996729 6723.8692 2.5902404e+08 0.053562931 0.049853709 120.39785 28.854300 6726.6613 2.4640398e+08 0.049151185 0.040957332 120.46375 28.711871 6729.4534 2.3519425e+08 0.048208479 0.040743234 120.53084 28.566505 6732.2455 2.2235887e+08 0.046014813 0.043785401 120.60597 28.403726 6735.0376 2.1030038e+08 0.045863724 0.049333323 120.67596 28.252079 6737.8297 1.9965949e+08 0.047837688 0.056778505 120.74170 28.109649 6740.6218 1.8932234e+08 0.047350327 0.065112544 120.80744 27.967220 6743.4139 1.8204413e+08 0.042796883 0.073839342 120.87317 27.824791 6746.2060 1.7282258e+08 0.039641787 0.076592795 120.93892 27.682343 6748.9981 1.6325258e+08 0.036505125 0.072267687 121.00466 27.539894 6751.7901 1.5676468e+08 0.031837322 0.074045750 121.07040 27.397466 6754.5822 1.5141912e+08 0.029860950 0.075277152 121.13614 27.255038 6757.3743 1.4680728e+08 0.027155415 0.075604041 121.20187 27.112608 6760.1664 1.4158238e+08 0.028245704 0.076378651 121.27155 26.964261 6762.9585 1.3395113e+08 0.033428751 0.076504661 121.34668 26.807742 6765.7506 1.2820408e+08 0.036309057 0.079668222 121.40958 26.662816 6768.5427 1.2257936e+08 0.032351411 0.082808854 121.46984 26.520387 6771.3348 1.1638426e+08 0.027000991 0.090117211 121.53556 26.377958 6774.1269 1.1095795e+08 0.021968932 0.096889269 121.60290 26.232032 6776.9190 1.0671659e+08 0.016934467 0.10366133 121.67804 26.069253 6779.7111 1.0290114e+08 0.011904285 0.11043339 121.74462 25.918165 6782.5032 99671958. 0.0068772535 0.11720544 121.80488 25.775736 6785.2953 94859049. 0.0018457206 0.12397750 121.86514 25.637410 6788.0874 91920463. -0.0031765689 0.13074956 121.92540 25.500459 6790.8795 91499692. -0.0081734334 0.13752162 121.99939 25.339652 6793.6716 87016453. -0.013202915 0.14429368 122.06967 25.183515 6796.4637 85684957. -0.018193863 0.15106574 122.12993 25.041086 6799.2558 83789850. -0.023165727 0.15783779 122.19450 24.888463 6802.0479 79698949. -0.028136707 0.16460985 122.26336 24.725684 6804.8400 76552920. -0.033060440 0.17138191 122.33223 24.568561 6807.6321 70952552. -0.038025594 0.17815397 122.39846 24.416359 6810.4241 66771914. -0.042965318 0.18492603 122.45872 24.273931 6813.2162 65462740. -0.047826783 0.19169809 122.52312 24.124727 6816.0083 64144868. -0.052687244 0.19847014 122.59199 23.968208 6818.8004 62335827. -0.057560326 0.20524220 122.65325 23.824140 6821.5925 64005637. -0.062323565 0.21201426 122.71364 23.680527 6824.3846 61548942. -0.067213067 0.21878632 122.77625 23.517747 6827.1767 56968858. -0.072183558 0.22555838 122.84174 23.357853 6829.9688 54203500. -0.077099606 0.23233044 122.91061 23.201333 6832.7609 51200470. -0.082037718 0.23910249 122.97948 23.039407 6835.5530 54321975. -0.086701286 0.24587455 123.04668 22.878296 6838.3451 53777369. -0.091530638 0.25264661 123.10929 22.721777 6841.1372 51472727. -0.096445061 0.25941867 123.17032 22.574687 6843.9293 49855258. -0.10133892 0.26619073 123.23058 22.432258 6846.7214 48830631. -0.10621397 0.27296279 123.29282 22.277942 6849.5135 47040728. -0.11113897 0.27973484 123.35697 22.119880 6852.3056 42223736. -0.11628994 0.28650690 123.42584 21.957099 6855.0977 38661518. -0.12143141 0.29327896 123.49065 21.798384 6857.8898 36923302. -0.12646605 0.30005102 123.55326 21.641865 6860.6819 38790453. -0.13116463 0.30682308 123.61586 21.485347 6863.4740 38127084. -0.13611794 0.31359514 123.68322 21.313642 6866.2660 36808440. -0.14116791 0.32036719 123.75536 21.126589 6869.0581 36624429. -0.14613707 0.32713925 123.81797 20.970070 6871.8502 38148214. -0.15095821 0.33391131 123.88364 20.813551 6874.6423 37722277. -0.15605756 0.34068337 123.95250 20.657032 6877.4344 35081162. -0.16155630 0.34745543 124.01579 20.494933 6880.2265 34774545. -0.16686700 0.35422749 124.07840 20.333994 6883.0186 35111234. -0.17221593 0.36099954 124.14101 20.177476 6885.8107 36332484. -0.17758525 0.36777160 124.21089 20.002779 6888.6028 36742572. -0.18339309 0.37454366 124.27846 19.828717 6891.3949 33951788. -0.19058859 0.38131572 124.33481 19.672199 6894.1870 33542630. -0.19835357 0.38808778 124.40335 19.491289 6896.9791 32924295. -0.20926935 0.39485984 124.47262 19.313442 6899.7712 32772332. -0.24643354 0.40163189 124.53523 19.156925 6902.5633 34800438. -0.22370623 0.40840395 124.60582 18.980469 6905.3554 34892876. -0.17482950 0.41517601 124.67226 18.808176