# # 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 = 59.336222 km # Date (UTC) = 2014-12-25T09:24:54.942 # Date (julian) = 2457016.89230257 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6503.2704 6.2724814e+10 0.058988545 0.033269401 115.07731 29.721611 6505.5333 5.8426347e+10 0.069040365 0.033951760 115.13256 29.615060 6507.7962 5.4087565e+10 0.079322572 0.034634118 115.18781 29.508495 6510.0590 4.9959448e+10 0.089855979 0.035316477 115.24307 29.401930 6512.3219 4.6018807e+10 0.10064816 0.035998835 115.29832 29.295372 6514.5847 4.2374113e+10 0.11174003 0.036681194 115.35357 29.188822 6516.8476 3.8987513e+10 0.12313900 0.037363552 115.40883 29.082271 6519.1104 3.5901720e+10 0.13486850 0.038045911 115.46407 28.975720 6521.3733 3.3033802e+10 0.14689366 0.038728269 115.51932 28.869169 6523.6362 3.0316590e+10 0.15445465 0.039336781 115.57282 28.760864 6525.8990 2.7686577e+10 0.15935516 0.039679613 115.62412 28.650367 6528.1619 2.5201351e+10 0.16476555 0.041570891 115.67542 28.539870 6530.4247 2.2913144e+10 0.16859800 0.044423299 115.73032 28.432954 6532.6876 2.0812406e+10 0.17190435 0.047258591 115.78558 28.326389 6534.9504 1.8952796e+10 0.17361875 0.048210431 115.83934 28.219830 6537.2133 1.7342047e+10 0.17404368 0.048785784 115.89064 28.113279 6539.4761 1.5856440e+10 0.17426092 0.050219995 115.94194 28.006728 6541.7390 1.4384561e+10 0.17314598 0.051086876 115.99865 27.892691 6544.0019 1.2929961e+10 0.17131265 0.051645859 116.05637 27.777259 6546.2647 1.1586845e+10 0.16940360 0.052682348 116.11030 27.667072 6548.5276 1.0484923e+10 0.16764472 0.053825199 116.16160 27.560521 6550.7904 9.6033341e+09 0.16568077 0.055183278 116.21290 27.453970 6553.0533 8.8674052e+09 0.16409333 0.055308278 116.26421 27.347405 6555.3161 8.2207317e+09 0.16200158 0.054587725 116.31552 27.240841 6557.5790 7.6367530e+09 0.15982283 0.053503185 116.36682 27.134283 6559.8419 7.1026948e+09 0.15745927 0.052292159 116.41813 27.027733 6562.1047 6.6194793e+09 0.15480351 0.050780259 116.46943 26.921182 6564.3676 6.1916927e+09 0.15211778 0.048605012 116.52073 26.814631 6566.6304 5.8058226e+09 0.15021899 0.046826250 116.57203 26.708080 6568.8933 5.4437893e+09 0.14840623 0.044950516 116.62334 26.601529 6571.1561 5.1002358e+09 0.14713714 0.044460628 116.67464 26.494979 6573.4190 4.7766773e+09 0.14543463 0.043321241 116.72594 26.388428 6575.6819 4.4920448e+09 0.14336343 0.041690587 116.77725 26.281865 6577.9447 4.2373147e+09 0.14110321 0.038736450 116.82856 26.175300 6580.2076 3.9993326e+09 0.13862876 0.036328924 116.87834 26.070269 6582.4704 3.7814328e+09 0.13633383 0.035165777 116.92570 25.967665 6584.7333 3.5830915e+09 0.13406600 0.034116061 116.97305 25.865061 6586.9961 3.4046134e+09 0.13171814 0.033158419 117.02377 25.759089 6589.2590 3.2424847e+09 0.12920946 0.032532139 117.07508 25.652538 6591.5219 3.0935135e+09 0.12604563 0.028613052 117.12701 25.541735 6593.7847 2.9240480e+09 0.12318009 0.026372672 117.18029 25.421863 6596.0476 2.7507390e+09 0.12009884 0.025727058 117.23317 25.303145 6598.3104 2.5888250e+09 0.11827005 0.025258955 117.28052 25.200541 6600.5733 2.4387064e+09 0.11817070 0.026168448 117.32787 25.097936 6602.8361 2.3272786e+09 0.11762082 0.026803101 117.37523 24.993222 6605.0990 2.2231748e+09 0.11708705 0.026748097 117.42260 24.886658 6607.3619 2.1227721e+09 0.11581030 0.024992461 117.46998 24.780094 6609.6247 2.0288074e+09 0.11295822 0.023891501 117.52126 24.673543 6611.8876 1.9269587e+09 0.11066232 0.024392447 117.57256 24.566992 6614.1504 1.8355735e+09 0.10987010 0.023836853 117.62203 24.462276 6616.4133 1.7578966e+09 0.10848951 0.023347164 117.66938 24.359672 6618.6761 1.6874600e+09 0.10785713 0.024281364 117.71674 24.257068 6620.9390 1.6132580e+09 0.10709809 0.025069789 117.76961 24.138385 6623.2019 1.5280922e+09 0.10565071 0.024566611 117.82288 24.018513 6625.4647 1.4440501e+09 0.10436814 0.025952148 117.86946 23.910352 6627.7276 1.3723721e+09 0.10248797 0.025597860 117.91288 23.807734 6629.9904 1.3163331e+09 0.10105699 0.025930032 117.95687 23.704546 6632.2533 1.2606883e+09 0.099113947 0.026062716 118.00422 23.597996 6634.5161 1.2071187e+09 0.097429313 0.026364493 118.05158 23.491446 6636.7790 1.1554824e+09 0.095661715 0.026247236 118.09894 23.387306 6639.0419 1.1114920e+09 0.094208227 0.025613115 118.14629 23.284702 6641.3047 1.0690239e+09 0.094479197 0.025149335 118.19411 23.180767 6643.5676 1.0215435e+09 0.093427739 0.025278315 118.24738 23.060895 6645.8304 9.7302314e+08 0.092195285 0.025840708 118.30065 22.941024 6648.0933 9.2699322e+08 0.091163731 0.027026729 118.34579 22.835391 6650.3561 8.8935046e+08 0.090528799 0.026336768 118.38920 22.732787 6652.6190 8.5180334e+08 0.090205317 0.027420832 118.43376 22.630178 6654.8819 8.2007808e+08 0.089204159 0.027660547 118.48113 22.527560 6657.1447 7.9015354e+08 0.087299263 0.029068972 118.52849 22.424942 6659.4076 7.5721379e+08 0.085841071 0.031749579 118.57697 22.309265 6661.6704 7.2685058e+08 0.084440705 0.032876412 118.62580 22.189393 6663.9333 6.9349903e+08 0.083066356 0.032224577 118.67190 22.078233 6666.1961 6.6445807e+08 0.083116303 0.026946815 118.71531 21.975629 6668.4590 6.4174673e+08 0.082055335 0.027876954 118.75872 21.873025 6670.7219 6.1687936e+08 0.081740558 0.026994209 118.80596 21.770421 6672.9847 5.9704991e+08 0.081247677 0.027450355 118.85331 21.667817 6675.2476 5.7481304e+08 0.079373866 0.030272539 118.90132 21.559613 6677.5104 5.5195271e+08 0.077429215 0.031632597 118.95015 21.444181 6679.7733 5.2712495e+08 0.077288714 0.029628767 118.99799 21.330382 6682.0361 5.0486050e+08 0.077976106 0.030452154 119.04141 21.223817 6684.2990 4.9005650e+08 0.077902035 0.032669264 119.08482 21.117252 6686.5619 4.7261014e+08 0.076573481 0.034087978 119.13176 21.004919 6688.8247 4.5562702e+08 0.073447662 0.033975561 119.18060 20.889487 6691.0876 4.3462660e+08 0.072166511 0.032980603 119.22728 20.779161 6693.3504 4.1497076e+08 0.071077479 0.031483872 119.27069 20.676556 6695.6133 4.0163880e+08 0.070496377 0.029746821 119.31410 20.573952 6697.8761 3.8538128e+08 0.069716310 0.030202142 119.36220 20.460264 6700.1390 3.7057538e+08 0.068096496 0.030770814 119.41103 20.344833 6702.4019 3.5537709e+08 0.066836212 0.033197610 119.45655 20.237247 6704.6647 3.4524762e+08 0.067167462 0.036503960 119.49996 20.134643 6706.9276 3.3677292e+08 0.066858338 0.040060758 119.54379 20.031044 6709.1904 3.2667992e+08 0.066194954 0.041011426 119.59263 19.915612 6711.4533 3.1312277e+08 0.064307780 0.041207939 119.64146 19.800179 6713.7161 2.9642418e+08 0.062176943 0.046276732 119.69031 19.684733 6715.9790 2.8585804e+08 0.060327803 0.048379874 119.73915 19.569284 6718.2418 2.7566286e+08 0.058074213 0.050189076 119.78262 19.461197 6720.5047 2.6781525e+08 0.057416284 0.050361287 119.82208 19.358592 6722.7676 2.5809842e+08 0.056784867 0.049656296 119.86191 19.255486 6725.0304 2.4908187e+08 0.052476517 0.041557018 119.91075 19.140055 6727.2933 2.4148750e+08 0.050929952 0.040569657 119.95958 19.024623 6729.5561 2.2924674e+08 0.050203893 0.040674750 120.00493 18.909191 6731.8190 2.2076821e+08 0.048346956 0.043379968 120.04932 18.793759 6734.0818 2.1348379e+08 0.047275802 0.049348675 120.09319 18.685181 6736.3447 2.0525641e+08 0.049086650 0.051658184 120.13660 18.582576 6738.6076 1.9662537e+08 0.050138752 0.060665999 120.18002 18.479893 6740.8704 1.8629745e+08 0.049242669 0.065537323 120.22441 18.364536 6743.1333 1.7944154e+08 0.045469659 0.071946516 120.26880 18.249104 6745.3961 1.7331963e+08 0.042549585 0.078733417 120.31653 18.136980 6747.6590 1.6801500e+08 0.038255595 0.067134296 120.36537 18.025972 6749.9218 1.6337624e+08 0.035984251 0.072025530 120.41201 17.912770 6752.1847 1.6044135e+08 0.033095856 0.073920740 120.45641 17.797338 6754.4476 1.5778638e+08 0.031802997 0.075493738 120.50080 17.681907 6756.7104 1.4978833e+08 0.029155811 0.075994918 120.54520 17.566475 6758.9733 1.4315292e+08 0.029922128 0.075763440 120.58960 17.451043 6761.2361 1.3700315e+08 0.031169331 0.077987734 120.63839 17.335612 6763.4990 1.3232292e+08 0.036235521 0.077957444 120.68723 17.220180 6765.7618 1.2619976e+08 0.038487476 0.079670271 120.73279 17.108027 6768.0247 1.2124084e+08 0.035889736 0.080944911 120.77719 16.997035 6770.2876 1.1728391e+08 0.031186350 0.087577158 120.82159 16.883885 6772.5504 1.1438017e+08 0.027150574 0.093065581 120.86598 16.768453 6774.8133 1.1127729e+08 0.023123954 0.098554004 120.91038 16.653021 6777.0761 1.0747862e+08 0.019110859 0.10404243 120.95477 16.537590 6779.3390 1.0341102e+08 0.015111246 0.10953085 120.99917 16.422158 6781.6018 97891717. 0.011149485 0.11501927 121.04357 16.311082 6783.8647 92132726. 0.0072088687 0.12050770 121.08796 16.200090 6786.1276 89299654. 0.0032052945 0.12599612 121.13236 16.085861 6788.3904 87221255. -0.00080731941 0.13148454 121.17676 15.970429 6790.6533 84223406. -0.0047929522 0.13697297 121.22116 15.857105 6792.9161 80433654. -0.0087489391 0.14246139 121.26556 15.746097 6795.1790 75081817. -0.012638490 0.14794981 121.30997 15.634096 6797.4418 75873200. -0.016671938 0.15343823 121.35436 15.518664 6799.7047 76431214. -0.020677628 0.15892666 121.39876 15.403232 6801.9676 74763216. -0.024610344 0.16441508 121.44932 15.276701 6804.2304 68964072. -0.028410812 0.16990350 121.50002 15.149917 6806.4933 64213634. -0.032215611 0.17539193 121.54445 15.034432 6808.7561 59074670. -0.035957859 0.18088035 121.58884 14.919000 6811.0190 59238426. -0.039898009 0.18636877 121.62992 14.806892 6813.2818 58643301. -0.043781323 0.19185720 121.66988 14.695900 6815.5447 57406979. -0.047602375 0.19734562 121.71519 14.574518 6817.8076 55156945. -0.051285271 0.20283404 121.76593 14.442593 6820.0704 50991739. -0.054622096 0.20832246 121.81333 14.321670 6822.3333 48705555. -0.058036873 0.21381089 121.85773 14.210678 6824.5961 44703821. -0.057920173 0.21929931 121.90247 14.095354 6826.8590 45280341. -0.065695061 0.22478773 121.94814 13.968503 6829.1218 45271889. -0.076917929 0.23027616 121.99342 13.845103