# # 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 = 45.577477 km # Date (UTC) = 2015-12-07T10:00:16.169 # Date (julian) = 2457363.91685381 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6487.6092 1.1687347e+11 0.015179469 0.028546810 -27.164484 54.451420 6489.6507 1.1578636e+11 0.020577901 0.029162409 -27.281972 54.369533 6491.6922 1.1005977e+11 0.026205858 0.029778007 -27.396748 54.287648 6493.7336 1.0099903e+11 0.031804266 0.030393605 -27.510675 54.205763 6495.7751 9.4177084e+10 0.037021592 0.031009204 -27.624602 54.123878 6497.8166 8.5049725e+10 0.042006798 0.031624802 -27.738544 54.041983 6499.8580 7.7976414e+10 0.046827348 0.032240400 -27.852487 53.960087 6501.8995 7.0927136e+10 0.051707162 0.032855998 -27.968481 53.876717 6503.9410 6.3941376e+10 0.056862375 0.033471597 -28.096651 53.784594 6505.9824 5.6910505e+10 0.062336936 0.034087195 -28.224822 53.692472 6508.0239 5.0735749e+10 0.068529160 0.034702793 -28.341464 53.604673 6510.0654 4.7171083e+10 0.076685915 0.035318392 -28.451830 53.519227 6512.1068 4.4008126e+10 0.086359636 0.035933990 -28.562197 53.433781 6514.1483 4.1344989e+10 0.097820216 0.036549588 -28.669578 53.351322 6516.1898 3.8809854e+10 0.11088997 0.037165187 -28.776384 53.269437 6518.2312 3.6236989e+10 0.12534103 0.037780785 -28.883191 53.187552 6520.2727 3.4398690e+10 0.14123002 0.038396383 -28.989998 53.105667 6522.3141 3.1668600e+10 0.15638583 0.038999514 -29.096805 53.023782 6524.3556 2.8661652e+10 0.16604527 0.039553293 -29.203615 52.941108 6526.3971 2.6015229e+10 0.17276047 0.040084376 -29.310435 52.855652 6528.4385 2.3817604e+10 0.17737609 0.041790380 -29.417256 52.770196 6530.4800 2.1852657e+10 0.17960517 0.044500698 -29.529581 52.681989 6532.5215 2.0101567e+10 0.18111779 0.047119826 -29.649741 52.589867 6534.5629 1.8303637e+10 0.18074886 0.048102033 -29.769901 52.497745 6536.6044 1.6672630e+10 0.17931957 0.048331275 -29.874569 52.411738 6538.6459 1.5194908e+10 0.17841705 0.049471184 -29.977815 52.326292 6540.6873 1.3843452e+10 0.17714667 0.051178815 -30.080679 52.241228 6542.7288 1.2853954e+10 0.17519806 0.051278929 -30.180366 52.159343 6544.7703 1.1948410e+10 0.17356979 0.052269198 -30.280052 52.077457 6546.8117 1.1064888e+10 0.17156068 0.053132445 -30.380805 51.994507 6548.8532 1.0126688e+10 0.16945619 0.053922438 -30.484065 51.909050 6550.8947 9.3509355e+09 0.16781889 0.055209374 -30.587324 51.823592 6552.9361 8.5677550e+09 0.16653344 0.055351146 -30.688834 51.739885 6554.9776 8.0214120e+09 0.16456378 0.054852894 -30.788520 51.658000 6557.0190 7.6150640e+09 0.16192052 0.053854167 -30.888207 51.576115 6559.0605 7.2356012e+09 0.15862098 0.052380351 -30.993653 51.484530 6561.1020 6.8580296e+09 0.15528612 0.051322428 -31.101797 51.388404 6563.1434 6.3484145e+09 0.15241934 0.049762435 -31.207725 51.294246 6565.1849 5.9084225e+09 0.14938272 0.048108431 -31.303850 51.208800 6567.2264 5.5073973e+09 0.14631467 0.046425783 -31.399976 51.123354 6569.2678 5.1228370e+09 0.14336501 0.044869857 -31.496102 51.039246 6571.3093 4.7716501e+09 0.14109598 0.044418799 -31.592228 50.957361 6573.3508 4.4567276e+09 0.13886867 0.043375999 -31.688354 50.875476 6575.3922 4.2116097e+09 0.13679705 0.041981175 -31.784487 50.791566 6577.4337 3.9913420e+09 0.13456540 0.039539139 -31.880626 50.706109 6579.4752 3.7761773e+09 0.13204785 0.036809280 -31.976765 50.620652 6581.5166 3.5951926e+09 0.12978107 0.035440167 -32.070194 50.535204 6583.5581 3.4466947e+09 0.12766206 0.034739185 -32.162759 50.449759 6585.5996 3.2955738e+09 0.12548723 0.033491441 -32.255324 50.364315 6587.6410 3.1341369e+09 0.12362492 0.033300395 -32.358879 50.272530 6589.6825 3.0214576e+09 0.12115827 0.031691987 -32.463019 50.180408 6591.7240 2.7913258e+09 0.11864037 0.028385016 -32.560305 50.091309 6593.7654 2.5584771e+09 0.11637054 0.026390616 -32.649310 50.005863 6595.8069 2.3099650e+09 0.11388238 0.025707247 -32.738316 49.920417 6597.8483 2.0622684e+09 0.11223105 0.025455022 -32.829622 49.834965 6599.8898 1.8912513e+09 0.11135832 0.024983248 -32.922199 49.749508 6601.9313 1.6951158e+09 0.11118723 0.027484268 -33.014777 49.664052 6603.9727 1.6049608e+09 0.10934713 0.026087414 -33.104370 49.578605 6606.0142 1.5988625e+09 0.10807012 0.027478438 -33.193375 49.493159 6608.0557 1.6269864e+09 0.10471650 0.023730900 -33.282571 49.407427 6610.0971 1.6198288e+09 0.10091381 0.024095788 -33.378700 49.311299 6612.1386 1.5369017e+09 0.098171412 0.024217196 -33.474828 49.215170 6614.1801 1.4539407e+09 0.096704111 0.023816435 -33.565293 49.124705 6616.2215 1.3817603e+09 0.094922923 0.023317068 -33.650738 49.039261 6618.2630 1.3180825e+09 0.094252019 0.023969387 -33.736182 48.953816 6620.3045 1.2437517e+09 0.093783576 0.024865309 -33.821628 48.868371 6622.3459 1.1775002e+09 0.092769292 0.024665919 -33.907074 48.782925 6624.3874 1.1217682e+09 0.091281639 0.025069677 -33.992520 48.697479 6626.4289 1.0867023e+09 0.089879054 0.026044506 -34.087726 48.602274 6628.4703 1.0235521e+09 0.088721752 0.025894049 -34.183869 48.506133 6630.5118 9.1375190e+08 0.087877324 0.025929563 -34.275559 48.414443 6632.5532 8.3247422e+08 0.086921967 0.026098684 -34.361004 48.328997 6634.5947 7.6338124e+08 0.085984607 0.026370224 -34.446448 48.243551 6636.6362 7.5095660e+08 0.084453052 0.026302699 -34.529731 48.158106 6638.6776 7.5431235e+08 0.083157015 0.025642119 -34.611616 48.072661 6640.7191 7.3685307e+08 0.083450384 0.025182668 -34.693502 47.987216 6642.7606 7.4643012e+08 0.082771264 0.025182820 -34.783561 47.893240 6644.8020 6.9009643e+08 0.081957581 0.025430289 -34.875683 47.797112 6646.8435 6.4094812e+08 0.080923558 0.026356771 -34.963641 47.704209 6648.8850 6.0752042e+08 0.079696913 0.027556683 -35.041966 47.618764 6650.9264 5.8209393e+08 0.079175993 0.026467323 -35.120291 47.533320 6652.9679 5.6319048e+08 0.078643176 0.027516828 -35.200377 47.447869 6655.0094 4.9048268e+08 0.077842264 0.027614084 -35.282273 47.362412 6657.0508 4.3825273e+08 0.076197191 0.028960066 -35.364168 47.276954 6659.0923 4.2157185e+08 0.074553893 0.031815347 -35.450323 47.184192 6661.1338 4.2604403e+08 0.073036274 0.032603073 -35.538441 47.088064 6663.1752 4.2284987e+08 0.071842460 0.032434655 -35.624718 46.993943 6665.2167 3.8513423e+08 0.071761996 0.028192086 -35.703044 46.908498 6667.2581 3.4876710e+08 0.071752899 0.027198280 -35.781369 46.823053 6669.2996 3.4008622e+08 0.070833413 0.028047979 -35.861888 46.733558 6671.3411 3.3563100e+08 0.070906162 0.026870209 -35.945999 46.637430 6673.3825 3.3485961e+08 0.070394520 0.028031339 -36.030111 46.541302 6675.4240 3.1793422e+08 0.068795372 0.030610488 -36.105974 46.454601 6677.4655 2.9297381e+08 0.067456640 0.031696500 -36.180738 46.369157 6679.5069 2.7785190e+08 0.067366342 0.029848861 -36.256485 46.282926 6681.5484 2.5917945e+08 0.068414125 0.030078084 -36.344603 46.186798 6683.5899 2.4795453e+08 0.068857375 0.032053038 -36.432720 46.090670 6685.6313 2.3374808e+08 0.068612145 0.033371680 -36.511085 46.000698 6687.6728 2.2155347e+08 0.066642103 0.033967675 -36.582298 45.915242 6689.7143 2.1869767e+08 0.064459437 0.033373074 -36.653511 45.829786 6691.7557 2.1110112e+08 0.063496277 0.032822961 -36.734638 45.736128 6693.7972 2.0384815e+08 0.062604182 0.031330603 -36.818750 45.640000 6695.8387 1.8884201e+08 0.062567260 0.029705423 -36.899355 45.546776 6697.8801 1.7537851e+08 0.061952867 0.030202646 -36.970559 45.461331 6699.9216 1.7073962e+08 0.060448037 0.030740073 -37.041764 45.375887 6701.9631 1.6784954e+08 0.058715943 0.032822514 -37.118944 45.285496 6704.0045 1.6073150e+08 0.059066421 0.036179770 -37.203055 45.189368 6706.0460 1.4401470e+08 0.059286972 0.038526428 -37.287166 45.093240 6708.0874 1.3235857e+08 0.059165171 0.040138802 -37.358806 45.007433 6710.1289 1.3027346e+08 0.058110625 0.040521727 -37.430011 44.921987 6712.1704 1.3011799e+08 0.056188365 0.042146287 -37.501989 44.834225 6714.2118 1.2762716e+08 0.054317179 0.047319334 -37.578101 44.734078 6716.2533 1.2211817e+08 0.052823061 0.048774453 -37.654213 44.633930 6718.2948 1.1772041e+08 0.050915370 0.050271494 -37.732966 44.536441 6720.3362 1.1845626e+08 0.050373065 0.050380808 -37.813072 44.440314 6722.3777 1.1674100e+08 0.050176265 0.050138271 -37.891129 44.345944 6724.4192 1.1106705e+08 0.047450183 0.046426381 -37.958772 44.260499 6726.4606 1.0415291e+08 0.044750587 0.040955522 -38.026416 44.175053 6728.5021 1.0000728e+08 0.044406973 0.040339729 -38.097068 44.085808 6730.5436 93189012. 0.043068143 0.041124186 -38.173168 43.989681 6732.5850 87603516. 0.041899701 0.043847910 -38.249268 43.893555 6734.6265 83705702. 0.041697806 0.049315906 -38.325370 43.797426 6736.6680 79615626. 0.043459272 0.052880237 -38.401473 43.701298 6738.7094 80017666. 0.044381033 0.061226756 -38.477574 43.605170 6740.7509 76884737. 0.043651619 0.065333114 -38.553675 43.509043 6742.7923 75246138. 0.040653495 0.070541452 -38.629775 43.412916 6744.8338 75510579. 0.037238926 0.078438343 -38.702409 43.316788 6746.8753 72503352. 0.033143817 0.068811220 -38.774505 43.220660 6748.9167 70941730. 0.032889492 0.071839903 -38.844961 43.128469 6750.9582 67119600. 0.030166783 0.073640305 -38.912614 43.043012 6752.9997 62822923. 0.027568734 0.072977671 -38.980266 42.957555 6755.0411 63265493. 0.025922532 0.074587311 -39.050410 42.863871 6757.0826 58900471. 0.023501690 0.076489388 -39.122506 42.763738 6759.1241 56169445. 0.024512767 0.075849893 -39.194602 42.663860 6761.1655 55065464. 0.024787092 0.077981901 -39.266698 42.567734 6763.2070 50017927. 0.025848403 0.077068169 -39.338794 42.471607 6765.2485 48119902. 0.031184369 0.079576550 -39.408618 42.375480 6767.2899 44770696. 0.037604305 0.081651126 -39.476709 42.279351