# # 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 = 54.870568 km # Date (UTC) = 2013-12-03T09:49:18.171 # Date (julian) = 2456629.90923808 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6498.9095 6.9744341e+10 0.040627480 0.031954369 107.75888 28.891649 6501.1694 6.4325966e+10 0.048929963 0.032635844 107.81012 28.781280 6503.4293 5.9380024e+10 0.057509792 0.033317318 107.86653 28.659787 6505.6893 5.4281077e+10 0.066330764 0.033998792 107.92417 28.535636 6507.9492 4.9640308e+10 0.075531849 0.034680266 107.97827 28.419100 6510.2091 4.5643362e+10 0.085255505 0.035361741 108.02951 28.308747 6512.4690 4.2161266e+10 0.095557098 0.036043215 108.08084 28.198252 6514.7290 3.8768155e+10 0.10631860 0.036724689 108.13848 28.078541 6516.9889 3.5379329e+10 0.11747712 0.037406164 108.19612 27.958824 6519.2488 3.2246216e+10 0.12914950 0.038087638 108.24591 27.846216 6521.5087 2.9639421e+10 0.14150226 0.038769112 108.29320 27.735862 6523.7687 2.7357576e+10 0.14930476 0.039369624 108.34279 27.622446 6526.0286 2.5023364e+10 0.15480655 0.039698057 108.40043 27.498297 6528.2885 2.2731232e+10 0.16106907 0.041671360 108.45807 27.374147 6530.5484 2.0697109e+10 0.16575068 0.044596498 108.50572 27.267128 6532.8084 1.9016511e+10 0.17029674 0.047359493 108.55302 27.160701 6535.0683 1.7537730e+10 0.17290728 0.048194674 108.60477 27.046660 6537.3282 1.6065918e+10 0.17407313 0.048839963 108.66241 26.922510 6539.5881 1.4640636e+10 0.17456103 0.050355551 108.71824 26.800764 6541.8481 1.3384320e+10 0.17309567 0.051051511 108.76554 26.690411 6544.1080 1.2343666e+10 0.17091613 0.051731947 108.81283 26.580057 6546.3679 1.1470873e+10 0.16869872 0.052767256 108.86013 26.472214 6548.6278 1.0717723e+10 0.16682886 0.053855139 108.90742 26.365802 6550.8878 1.0013496e+10 0.16497349 0.055207647 108.95530 26.257620 6553.1477 9.3019705e+09 0.16355404 0.055260829 109.00851 26.133470 6555.4076 8.6023019e+09 0.16158559 0.054510877 109.06172 26.009319 6557.6675 7.9471742e+09 0.15963382 0.053447696 109.10994 25.900134 6559.9275 7.4172399e+09 0.15740824 0.052282497 109.15724 25.793707 6562.1874 6.9563510e+09 0.15477991 0.050701602 109.20636 25.681832 6564.4473 6.4903394e+09 0.15226602 0.048568878 109.25956 25.557682 6566.7072 6.0412865e+09 0.15047374 0.046782806 109.31246 25.434457 6568.9672 5.6399569e+09 0.14871174 0.044882616 109.35976 25.328044 6571.2271 5.3170395e+09 0.14746451 0.044441255 109.40705 25.221631 6573.4870 5.0296864e+09 0.14559455 0.043266672 109.45739 25.106087 6575.7469 4.7338251e+09 0.14345873 0.041625302 109.51060 24.981937 6578.0069 4.4464592e+09 0.14116246 0.038638790 109.56227 24.862389 6580.2668 4.1968237e+09 0.13856787 0.036274210 109.60957 24.755977 6582.5267 3.9845364e+09 0.13612063 0.035150464 109.65686 24.649565 6584.7866 3.7852572e+09 0.13364453 0.034087005 109.70522 24.530343 6587.0466 3.5714894e+09 0.13109491 0.033168684 109.75399 24.406192 6589.3065 3.3574121e+09 0.12864610 0.032437953 109.80208 24.290316 6591.5664 3.1698195e+09 0.12595746 0.028562791 109.84938 24.183889 6593.8263 3.0142293e+09 0.12366956 0.026333987 109.89668 24.077462 6596.0863 2.8800737e+09 0.12115305 0.025726882 109.94032 23.971048 6598.3462 2.7580967e+09 0.11952169 0.025241888 109.98367 23.864635 6600.6061 2.6334692e+09 0.11933621 0.026235907 110.03089 23.753000 6602.8660 2.4982788e+09 0.11876007 0.026777601 110.08409 23.633285 6605.1260 2.3644796e+09 0.11826090 0.026770706 110.13595 23.514854 6607.3859 2.2438767e+09 0.11695600 0.024945036 110.17930 23.404500 6609.6458 2.1400755e+09 0.11404598 0.023897765 110.22265 23.294146 6611.9057 2.0492287e+09 0.11158507 0.024380871 110.26926 23.178175 6614.1656 1.9495490e+09 0.11069649 0.023826366 110.31803 23.058458 6616.4256 1.8487709e+09 0.10934255 0.023349093 110.36494 22.943322 6618.6855 1.7640747e+09 0.10867734 0.024288429 110.40830 22.836895 6620.9454 1.6858344e+09 0.10782982 0.025071859 110.45166 22.730468 6623.2053 1.6135566e+09 0.10617538 0.024567904 110.49939 22.613309 6625.4653 1.5355265e+09 0.10470120 0.025952814 110.54817 22.493593 6627.7252 1.4601207e+09 0.10271235 0.025596943 110.59395 22.381225 6629.9851 1.4003316e+09 0.10116350 0.025930992 110.63730 22.274812 6632.2450 1.3432288e+09 0.099091506 0.026061728 110.68073 22.168200 6634.5050 1.2863114e+09 0.097298662 0.026363678 110.72951 22.048483 6636.7649 1.2252964e+09 0.095434295 0.026252712 110.77828 21.928767 6639.0248 1.1682007e+09 0.094016319 0.025619203 110.82294 21.819157 6641.2847 1.1206627e+09 0.094491999 0.025149267 110.86629 21.712744 6643.5447 1.0745901e+09 0.093765591 0.025274857 110.91085 21.603368 6645.8046 1.0231266e+09 0.092897902 0.025828607 110.95963 21.483635 6648.0645 9.7175630e+08 0.092082368 0.027007474 111.00841 21.363902 6650.3244 9.2814198e+08 0.091470170 0.026329511 111.04813 21.257055 6652.5844 8.9056688e+08 0.091051911 0.027411305 111.08754 21.150643 6654.8443 8.6019772e+08 0.089969348 0.027676549 111.13098 21.038508 6657.1042 8.2636587e+08 0.088008558 0.029022001 111.17975 20.918792 6659.3641 7.9130816e+08 0.086465371 0.031758638 111.22853 20.799075 6661.6241 7.5189054e+08 0.085074005 0.032852801 111.27730 20.679358 6663.8840 7.1183204e+08 0.083693024 0.032238237 111.32607 20.559641 6666.1439 6.7678524e+08 0.083696249 0.026936639 111.36624 20.452158 6668.4038 6.4823875e+08 0.082654412 0.027828146 111.40565 20.345746 6670.6638 6.2361798e+08 0.082226850 0.027021120 111.44864 20.234250 6672.9237 5.9872521e+08 0.081732301 0.027414987 111.49741 20.114534 6675.1836 5.7260096e+08 0.079910933 0.030150048 111.54562 19.994815 6677.4435 5.4637755e+08 0.077878088 0.031727679 111.58997 19.875081 6679.7035 5.2181304e+08 0.077628739 0.029686460 111.63432 19.755347 6681.9634 4.9784291e+08 0.078319577 0.030396456 111.67436 19.647227 6684.2233 4.7930501e+08 0.078279091 0.032665424 111.71377 19.540814 6686.4832 4.6342253e+08 0.076971741 0.034042240 111.75631 19.431434 6688.7432 4.4893888e+08 0.073845864 0.033956738 111.80509 19.316151 6691.0031 4.2925754e+08 0.072550769 0.033000534 111.85351 19.200517 6693.2630 4.0581589e+08 0.071705879 0.031513859 111.89785 19.080802 6695.5229 3.8333924e+08 0.071401204 0.029763416 111.94219 18.961087 6697.7829 3.6604217e+08 0.070797799 0.030190338 111.98247 18.852331 6700.0428 3.5353097e+08 0.069260964 0.030699455 112.02188 18.745918 6702.3027 3.4426165e+08 0.067792823 0.033118447 112.06271 18.636964 6704.5626 3.3389549e+08 0.068153059 0.036453837 112.10705 18.521682 6706.8226 3.2055631e+08 0.067963246 0.039878007 112.15139 18.406261 6709.0825 3.0958652e+08 0.067369820 0.041080078 112.19573 18.286544 6711.3424 2.9536162e+08 0.065575586 0.041081802 112.24006 18.166827 6713.6023 2.8171478e+08 0.063468564 0.045865140 112.28441 18.050538 6715.8623 2.6583883e+08 0.061722662 0.048260483 112.32875 17.935238 6718.1222 2.4893378e+08 0.059711461 0.050002707 112.37053 17.824569 6720.3821 2.3842255e+08 0.058968581 0.050375492 112.40994 17.718157 6722.6420 2.3031071e+08 0.058502330 0.049811483 112.44935 17.611744 6724.9020 2.2740976e+08 0.054342398 0.042394731 112.49361 17.496608 6727.1619 2.2373724e+08 0.052432363 0.040744712 112.53795 17.381326 6729.4218 2.1434481e+08 0.051847043 0.040764282 112.58229 17.262815 6731.6817 2.0359833e+08 0.050063366 0.043106798 112.62663 17.143098 6733.9417 1.9290714e+08 0.048963113 0.049036838 112.66887 17.025479 6736.2016 1.8519417e+08 0.050703888 0.051117097 112.70878 16.910196 6738.4615 1.7792091e+08 0.051817271 0.059861896 112.74965 16.793948 6740.7214 1.7172619e+08 0.051016248 0.065282803 112.79398 16.674232 6742.9814 1.6601860e+08 0.047519091 0.071002010 112.83832 16.554516 6745.2413 1.5943359e+08 0.044297301 0.078668319 112.88267 16.439067 6747.5012 1.5487733e+08 0.039852930 0.067188615 112.92701 16.323786 6749.7611 1.4962073e+08 0.037927397 0.072069535 112.96822 16.205357 6752.0211 1.4462271e+08 0.034530493 0.074110113 113.00813 16.085623 6754.2810 1.4298473e+08 0.033102414 0.075761622 113.05004 15.967901 6756.5409 1.3702782e+08 0.030251090 0.075558734 113.09438 15.852618 6758.8008 1.2864949e+08 0.030529450 0.075398780 113.13871 15.737336 6761.0608 1.2172301e+08 0.030931397 0.077973244 113.18306 15.622053 6763.3207 1.1761837e+08 0.036036159 0.077414395 113.22740 15.506770 6765.5806 1.1274635e+08 0.038006647 0.079637184 113.26756 15.391488 6767.8405 1.0834464e+08 0.035499216 0.081034593 113.30747 15.276206 6770.1005 1.0343358e+08 0.030319744 0.087123340 113.34737 15.157883 6772.3604 1.0111973e+08 0.025826114 0.092604651 113.38728 15.038167 6774.6203 97234569. 0.021340652 0.098085962 113.42910 14.920360 6776.8802 95594886. 0.016831138 0.10356727 113.47343 14.805078 6779.1402 91674235. 0.012308462 0.10904858 113.51799 14.686909 6781.4001 88335752. 0.0077753339 0.11452989 113.56360 14.555154 6783.6600 87075213. 0.0032783615 0.12001121 113.60806 14.426725 6785.9199 80289193. -0.0013727694 0.12549252 113.64796 14.311443 6788.1798 78500881. -0.0059001789 0.13097383 113.68787 14.196161 6790.4398 74778975. -0.010509110 0.13645514 113.73197 14.080879 6792.6997 73707343. -0.015003078 0.14193645 113.77631 13.965597 6794.9596 69461530. -0.019723162 0.14741776 113.81758 13.850315 6797.2195 64231798. -0.024683072 0.15289907 113.85749 13.735033 6799.4795 58489958. -0.030030586 0.15838038 113.89988 13.612571 6801.7394 54837068. -0.035700209 0.16386169 113.94549 13.480817 6803.9993 54653098. -0.041662943 0.16934300 113.98846 13.356681 6806.2592 55171515. -0.050244817 0.17482431 114.02836 13.241398 6808.5192 54820344. -0.082257936 0.18030563 114.06945 13.122703 6810.7791 50810819. -0.063573674 0.18578694 114.11506 12.990950 6813.0390 46636970. -0.010609290 0.19126825 114.15933 12.863043