# # 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 = 46.346323 km # Date (UTC) = 2015-12-24T10:13:58.310 # Date (julian) = 2457380.92636933 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6495.4119 3.0828169e+11 0.032794815 0.030899689 -33.208363 49.902568 6497.8906 2.0837406e+11 0.042366233 0.031647133 -33.325088 49.798813 6500.3693 1.4956311e+11 0.051557410 0.032394577 -33.441802 49.695067 6502.8480 1.1283924e+11 0.060436559 0.033142021 -33.558511 49.591321 6505.3267 8.9439958e+10 0.069202896 0.033889465 -33.670961 49.487574 6507.8054 7.3038698e+10 0.078086679 0.034636909 -33.783352 49.383828 6510.2841 6.1280779e+10 0.087359338 0.035384353 -33.895743 49.280082 6512.7628 5.2155660e+10 0.097163348 0.036131797 -34.008135 49.176338 6515.2415 4.5079687e+10 0.10773438 0.036879241 -34.120532 49.072588 6517.7202 3.9540397e+10 0.11923945 0.037626685 -34.232937 48.968827 6520.1989 3.4905643e+10 0.13168895 0.038374129 -34.345342 48.864862 6522.6776 3.1025376e+10 0.14330459 0.039094683 -34.457732 48.756794 6525.1563 2.7641184e+10 0.15109227 0.039764380 -34.570122 48.648726 6527.6350 2.4633441e+10 0.15749466 0.041177465 -34.679340 48.543832 6530.1137 2.1993951e+10 0.16395810 0.043987823 -34.787408 48.440087 6532.5924 1.9548434e+10 0.16925744 0.047179045 -34.895477 48.336342 6535.0711 1.7454733e+10 0.17306444 0.048193473 -35.003545 48.232596 6537.5497 1.5663655e+10 0.17502740 0.048944408 -35.111615 48.128848 6540.0284 1.4120604e+10 0.17619096 0.050867540 -35.219697 48.025089 6542.5071 1.2804999e+10 0.17401259 0.051194777 -35.327780 47.921331 6544.9858 1.1631842e+10 0.17210895 0.052444076 -35.432418 47.817582 6547.4645 1.0592531e+10 0.16936211 0.053464017 -35.536164 47.713836 6549.9432 9.6396194e+09 0.16736053 0.054927502 -35.639910 47.608010 6552.4219 8.7712781e+09 0.16511378 0.055480569 -35.743657 47.499942 6554.9006 7.9941389e+09 0.16288287 0.054851279 -35.847403 47.392598 6557.3793 7.3110067e+09 0.16032117 0.053628353 -35.951148 47.288852 6559.8580 6.7011184e+09 0.15763293 0.052290336 -36.054892 47.185106 6562.3367 6.1473866e+09 0.15458505 0.050559518 -36.154956 47.081349 6564.8154 5.6616007e+09 0.15183368 0.048402059 -36.254392 46.977591 6567.2941 5.2300830e+09 0.14948472 0.046368524 -36.356161 46.873839 6569.7728 4.8380505e+09 0.14754820 0.044902721 -36.459907 46.770093 6572.2515 4.4844605e+09 0.14546697 0.044086137 -36.562668 46.665361 6574.7302 4.1534653e+09 0.14281629 0.042504302 -36.662090 46.557292 6577.2089 3.8545807e+09 0.13986072 0.039892281 -36.761513 46.449224 6579.6876 3.5836261e+09 0.13645433 0.036692510 -36.856983 46.345110 6582.1663 3.3302321e+09 0.13332569 0.035248550 -36.952083 46.241366 6584.6450 3.1050341e+09 0.13014853 0.034164177 -37.049791 46.137612 6587.1237 2.8988056e+09 0.12692379 0.033185767 -37.149227 46.033852 6589.6024 2.7075151e+09 0.12346956 0.031850968 -37.247412 45.928850 6592.0810 2.5325973e+09 0.11926351 0.027994806 -37.342511 45.820781 6594.5597 2.3696790e+09 0.11525259 0.025865252 -37.437610 45.712713 6597.0384 2.2171526e+09 0.11145946 0.025710598 -37.532711 45.608860 6599.5171 2.0693645e+09 0.10954529 0.024960833 -37.627812 45.505115 6601.9958 1.9416086e+09 0.10931928 0.027514668 -37.720052 45.401369 6604.4745 1.8161173e+09 0.10817587 0.026353032 -37.810829 45.297623 6606.9532 1.6998905e+09 0.10738169 0.025791061 -37.903116 45.192367 6609.4319 1.6007402e+09 0.10414499 0.023834230 -37.998229 45.084284 6611.9106 1.5014316e+09 0.10149984 0.024377757 -38.093190 44.976354 6614.3893 1.4148896e+09 0.10046570 0.023672277 -38.183967 44.872610 6616.8680 1.3343421e+09 0.098955308 0.023418532 -38.274744 44.768865 6619.3467 1.2490154e+09 0.098300042 0.024609566 -38.365521 44.665119 6621.8254 1.1754883e+09 0.097154981 0.024815868 -38.456298 44.561372 6624.3041 1.1049812e+09 0.095131217 0.025025085 -38.547076 44.455861 6626.7828 1.0336764e+09 0.093201514 0.025593568 -38.637854 44.347792 6629.2615 9.7342925e+08 0.091674017 0.026061829 -38.728223 44.240134 6631.7402 9.1658455e+08 0.089587659 0.026005952 -38.814688 44.136374 6634.2189 8.6754840e+08 0.087679993 0.026342808 -38.901152 44.032614 6636.6976 8.2080997e+08 0.085754968 0.026278861 -38.987609 43.928866 6639.1763 7.7328516e+08 0.084370985 0.025565077 -39.074064 43.825121 6641.6550 7.2892590e+08 0.084594270 0.025150524 -39.160519 43.719350 6644.1336 6.9002703e+08 0.083140062 0.025358051 -39.246975 43.611281 6646.6123 6.5222276e+08 0.081556685 0.026237116 -39.333430 43.503884 6649.0910 6.1905050e+08 0.079815877 0.027508196 -39.419885 43.400138 6651.5697 5.8643509e+08 0.079200327 0.026920784 -39.506340 43.296392 6654.0484 5.5104702e+08 0.078519743 0.028015594 -39.601907 43.177616 6656.5271 5.2264747e+08 0.076697201 0.028486072 -39.699185 43.056019 6659.0058 4.8818575e+08 0.075212023 0.031833385 -39.784558 42.948454 6661.4845 4.6376526e+08 0.073954863 0.032781723 -39.866689 42.844709 6663.9632 4.4185520e+08 0.072556530 0.032216284 -39.950864 42.740964 6666.4419 4.1760382e+08 0.072740938 0.026994706 -40.037319 42.637217 6668.9206 3.9552612e+08 0.071591836 0.028285440 -40.123086 42.532782 6671.3993 3.6681150e+08 0.071839392 0.026871039 -40.205217 42.424714 6673.8780 3.4770688e+08 0.071145165 0.028772318 -40.287348 42.316645 6676.3567 3.3063195e+08 0.068687768 0.031943607 -40.365832 42.212223 6678.8354 3.1767332e+08 0.067612536 0.030377875 -40.443651 42.108465 6681.3141 3.0234538e+08 0.068628151 0.029898314 -40.529241 41.997801 6683.7928 2.8382916e+08 0.069026696 0.032350398 -40.621640 41.881085 6686.2715 2.6681741e+08 0.068159512 0.033919028 -40.709146 41.768490 6688.7502 2.4922891e+08 0.064978569 0.033958354 -40.791279 41.660421 6691.2289 2.3435267e+08 0.063587776 0.032947267 -40.872707 41.553059 6693.7076 2.2496258e+08 0.062313619 0.031361354 -40.950516 41.449314 6696.1862 2.2064430e+08 0.061755180 0.029753168 -41.028325 41.345570 6698.6649 2.0825866e+08 0.060366399 0.031130530 -41.114402 41.226667 6701.1436 1.9570359e+08 0.058115855 0.031620207 -41.201939 41.105088 6703.6223 1.8269490e+08 0.057738295 0.035232515 -41.281755 40.997662 6706.1010 1.6960073e+08 0.057563784 0.038622240 -41.359565 40.893916 6708.5797 1.5841673e+08 0.056913305 0.040674879 -41.439716 40.783932 6711.0584 1.4702948e+08 0.055016869 0.040758700 -41.522401 40.667197 6713.5371 1.3991914e+08 0.052567233 0.045629258 -41.603018 40.554140 6716.0158 1.3349272e+08 0.050412220 0.048424649 -41.680827 40.446072 6718.4945 1.2797646e+08 0.047796630 0.050582571 -41.759176 40.337044 6720.9732 1.1940613e+08 0.047519191 0.050307004 -41.841849 40.220330 6723.4519 1.1115964e+08 0.045918123 0.049620975 -41.924255 40.104324 6725.9306 1.0356416e+08 0.041431669 0.040994723 -42.002064 40.000578 6728.4093 94277463. 0.040358326 0.040208195 -42.079874 39.896832 6730.8880 88736319. 0.038389463 0.041596437 -42.161290 39.779865 6733.3667 86404843. 0.036905236 0.045915113 -42.243965 39.658286 6735.8454 83130243. 0.037879835 0.050190859 -42.317390 39.548915 6738.3241 77057350. 0.038981744 0.059105242 -42.386563 39.445157 6740.8028 75151612. 0.038079097 0.065421748 -42.460758 39.336578 6743.2815 71887197. 0.033717258 0.072946162 -42.543431 39.219861 6745.7602 71625496. 0.031068411 0.078886449 -42.626104 39.101609 6748.2389 71940526. 0.026936360 0.068273501 -42.708778 38.980031 6750.7175 67776255. 0.023745329 0.073229370 -42.787947 38.863080 6753.1962 66071817. 0.020591604 0.073612362 -42.857111 38.759335 6755.6749 63288595. 0.017701366 0.074309429 -42.926274 38.655591 6758.1536 61828954. 0.016286853 0.074030198 -43.003619 38.539572 6760.6323 60836494. 0.016294757 0.077267090 -43.081430 38.422855 6763.1110 59016757. 0.020616133 0.076775885 -43.159240 38.301812 6765.5897 56206967. 0.021368162 0.079638848 -43.237051 38.180233 6768.0684 51476916. 0.014126317 0.081102192 -43.314861 38.062708 6770.5471 46366607. -0.013416499 0.088206679 -43.392671 37.945991 6773.0258 44816834. -0.0027407429 0.094218605 -43.470491 37.829263 6777.9832 45174077. 0.029762375 0.10624246 -43.619889 37.605165