# # 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 = 48.105636 km # Date (UTC) = 2013-01-29T10:54:18.946 # Date (julian) = 2456321.95438595 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6501.7576 7.2353664e+10 0.050073289 0.032813204 81.654329 56.395104 6503.6645 6.7925424e+10 0.058572610 0.033388228 81.852389 56.216850 6505.5714 6.3143192e+10 0.067286463 0.033963252 82.073020 56.017875 6507.4783 5.8355309e+10 0.076247613 0.034538277 82.246633 55.856235 6509.3852 5.3574917e+10 0.085398327 0.035113301 82.437814 55.678240 6511.2921 4.9465823e+10 0.094935243 0.035688325 82.651462 55.478539 6513.1991 4.5631983e+10 0.10478588 0.036263349 82.819047 55.310951 6515.1060 4.2371122e+10 0.11508509 0.036838373 82.986649 55.145728 6517.0129 3.9716269e+10 0.12584689 0.037413398 83.154275 54.984087 6518.9198 3.6874880e+10 0.13675872 0.037988422 83.352391 54.793051 6520.8267 3.3976398e+10 0.14782577 0.038563446 83.543191 54.606810 6522.7336 3.1225046e+10 0.15707106 0.039109356 83.704790 54.445212 6524.6405 2.8884352e+10 0.16358617 0.039654510 83.866417 54.279270 6526.5474 2.6820209e+10 0.16844829 0.040242011 84.027756 54.111941 6528.4543 2.4902507e+10 0.17305838 0.041802919 84.183410 53.950301 6530.3613 2.3090035e+10 0.17721149 0.044334455 84.339051 53.788677 6532.2682 2.1420139e+10 0.18049213 0.046908221 84.494668 53.627077 6534.1751 1.9852406e+10 0.18132896 0.047993535 84.646068 53.461205 6536.0820 1.8430612e+10 0.18035715 0.047863866 84.795964 53.293807 6537.9889 1.7108053e+10 0.18077564 0.049151452 84.951618 53.132167 6539.8958 1.5863617e+10 0.17995081 0.050727995 85.102854 52.968339 6541.8027 1.4724900e+10 0.17727904 0.051066210 85.246499 52.800753 6543.7096 1.3660977e+10 0.17501738 0.051568142 85.394341 52.637312 6545.6166 1.2717295e+10 0.17308687 0.052461091 85.543847 52.475512 6547.5235 1.1862643e+10 0.17155328 0.053486429 85.687526 52.307887 6549.4304 1.1065332e+10 0.16957718 0.054404871 85.829072 52.140260 6551.3373 1.0368232e+10 0.16770353 0.055354145 85.966767 51.972632 6553.2442 9.7241761e+09 0.16600928 0.055212310 86.108543 51.809140 6555.1511 9.1289682e+09 0.16413873 0.054726392 86.252097 51.647448 6557.0580 8.5884523e+09 0.16183889 0.053829736 86.389792 51.479821 6558.9649 8.0597200e+09 0.15892295 0.052417058 86.527486 51.312193 6560.8719 7.5582268e+09 0.15615605 0.051488224 86.665176 51.144568 6562.7788 7.0471108e+09 0.15381366 0.050138883 86.798810 50.981005 6564.6857 6.5831594e+09 0.15119026 0.048460850 86.930356 50.819534 6566.5926 6.2302215e+09 0.14854102 0.046847660 87.040157 50.679802 6568.4995 5.9446198e+09 0.14607284 0.045312505 87.149995 50.540009 6570.4064 5.7046974e+09 0.14381750 0.044749161 87.281597 50.372515 6572.3133 5.4138849e+09 0.14132552 0.044050725 87.411335 50.204888 6574.2202 5.0914996e+09 0.13823466 0.042749228 87.537055 50.037263 6576.1271 4.7692108e+09 0.13524285 0.041225047 87.662754 49.873603 6578.0341 4.4618914e+09 0.13236793 0.038595835 87.788444 49.712001 6579.9410 4.2276590e+09 0.12955463 0.036553205 87.893465 49.572047 6581.8479 4.0217725e+09 0.12710833 0.035339859 87.998227 49.432365 6583.7548 3.8243703e+09 0.12515373 0.034639624 88.123591 49.265212 6585.6617 3.6280969e+09 0.12341388 0.033441756 88.241198 49.106323 6587.5686 3.4442433e+09 0.12195857 0.033284353 88.340974 48.966638 6589.4755 3.2885335e+09 0.12003930 0.032102574 88.446891 48.818356 6591.3824 3.1344462e+09 0.11770086 0.028770372 88.566594 48.650770 6593.2894 2.9518831e+09 0.11583192 0.026833212 88.686315 48.483159 6595.1963 2.7690793e+09 0.11373139 0.025643924 88.806046 48.315534 6597.1032 2.6342248e+09 0.11137951 0.025690169 88.906480 48.174927 6599.0101 2.5213419e+09 0.10944406 0.024930337 89.006256 48.035243 6600.9170 2.4154468e+09 0.10927712 0.026875054 89.119476 47.868666 6602.8239 2.3070816e+09 0.10820965 0.026813541 89.227677 47.710666 6604.7308 2.1999839e+09 0.10709433 0.026505214 89.322444 47.575998 6606.6377 2.0983467e+09 0.10598001 0.026357976 89.422661 47.431867 6608.5446 1.9955625e+09 0.10329784 0.023717971 89.536409 47.264242 6610.4516 1.9008905e+09 0.10042739 0.024434432 89.635385 47.113849 6612.3585 1.8132829e+09 0.098496785 0.024052917 89.725182 46.974164 6614.2654 1.7296785e+09 0.097242724 0.023757655 89.829639 46.817373 6616.1723 1.6405138e+09 0.095575831 0.023309340 89.943382 46.649748 6618.0792 1.5515645e+09 0.094790575 0.023830605 90.034554 46.508466 6619.9861 1.4777786e+09 0.093945256 0.024763848 90.124333 46.368812 6621.8930 1.4247935e+09 0.092661078 0.024793449 90.209457 46.229131 6623.7999 1.3726406e+09 0.091046658 0.024788191 90.294268 46.089448 6625.7069 1.3142765e+09 0.090360692 0.026241091 90.400476 45.923710 6627.6138 1.2498359e+09 0.088981302 0.025553898 90.503529 45.763403 6629.5207 1.1814277e+09 0.088250978 0.026014965 90.593326 45.623721 6631.4276 1.1311411e+09 0.086921777 0.025974200 90.681837 45.484039 6633.3345 1.0932349e+09 0.085897857 0.026210653 90.766644 45.344356 6635.2414 1.0576186e+09 0.084752953 0.026435991 90.855735 45.197616 6637.1483 1.0121274e+09 0.083655379 0.026088768 90.957483 45.030029 6639.0552 9.5911163e+08 0.082939637 0.025608333 91.049369 44.878685 6640.9621 9.0998358e+08 0.083795889 0.025152932 91.134176 44.739001 6642.8691 8.7384259e+08 0.083566966 0.025187260 91.216103 44.599318 6644.7760 8.4943122e+08 0.082636829 0.025427472 91.295924 44.459636 6646.6829 8.2030679e+08 0.081606172 0.026273629 91.384893 44.303939 6648.5898 7.8485020e+08 0.080669534 0.027359094 91.480677 44.136311 6650.4967 7.4565366e+08 0.080332103 0.026368947 91.566555 43.993909 6652.4036 7.0823323e+08 0.079985631 0.027361572 91.651366 43.854227 6654.3105 6.7791976e+08 0.079228252 0.027903937 91.731677 43.714570 6656.2174 6.5321279e+08 0.077557602 0.028214265 91.811478 43.574915 6658.1244 6.3469998e+08 0.076224728 0.030281622 91.886839 43.435234 6660.0313 6.1292271e+08 0.074918757 0.031654416 91.961670 43.295550 6661.9382 5.8487236e+08 0.073551815 0.033012783 92.055122 43.131035 6663.8451 5.5460595e+08 0.072433469 0.032249018 92.147421 42.969509 6665.7520 5.2576536e+08 0.072640032 0.027314951 92.227243 42.829825 6667.6589 5.0639419e+08 0.072247270 0.027345487 92.305997 42.690142 6669.5658 4.9077138e+08 0.071610760 0.027774562 92.380828 42.550457 6671.4727 4.7330905e+08 0.071717854 0.026872085 92.455655 42.410779 6673.3796 4.5544036e+08 0.071405294 0.028027008 92.530467 42.271125 6675.2866 4.3765735e+08 0.069972185 0.030347223 92.605283 42.131465 6677.1935 4.2349037e+08 0.068326444 0.032083178 92.680114 41.991782 6679.1004 4.0948241e+08 0.067886175 0.030184819 92.757935 41.846518 6681.0073 3.8831276e+08 0.069002612 0.029662955 92.847736 41.678890 6682.9142 3.6597994e+08 0.069709998 0.031123032 92.926971 41.526056 6684.8211 3.4425964e+08 0.069728629 0.032695760 92.996812 41.386373 6686.7280 3.3066459e+08 0.068479850 0.034184664 93.069272 41.246690 6688.6349 3.1759393e+08 0.066084709 0.033931757 93.144104 41.107007 6690.5419 3.0532158e+08 0.064958144 0.033053767 93.216332 40.967337 6692.4488 2.9395429e+08 0.064095529 0.032244204 93.286159 40.827681 6694.3557 2.8383183e+08 0.063281426 0.030762526 93.355993 40.688011 6696.2626 2.7644131e+08 0.063001514 0.029784886 93.425834 40.548329 6698.1695 2.6561917e+08 0.062136160 0.030450477 93.495676 40.408646 6700.0764 2.5615263e+08 0.060612470 0.030724396 93.565517 40.268964 6701.9833 2.4217910e+08 0.058976120 0.032852263 93.642432 40.115133 6703.8902 2.2801307e+08 0.059219278 0.035902891 93.726244 39.947505 6705.7971 2.1866427e+08 0.059135816 0.038085775 93.798378 39.807408 6707.7041 2.1192379e+08 0.058704487 0.040085970 93.868220 39.672716 6709.6110 2.0479294e+08 0.057748221 0.040743935 93.933905 39.533895 6711.5179 1.9965005e+08 0.055897757 0.041281443 93.998748 39.394238 6713.4248 1.8938203e+08 0.053984060 0.045223019 94.067722 39.254560 6715.3317 1.8406189e+08 0.052198934 0.047717849 94.137563 39.114877 6717.2386 1.7699787e+08 0.050201319 0.049859509 94.203303 38.975195 6719.1455 1.7115014e+08 0.048039446 0.051231573 94.268154 38.835513 6721.0524 1.7340693e+08 0.048355216 0.050319700 94.333009 38.695829 6722.9594 1.7135119e+08 0.047280308 0.049419192 94.397864 38.556144 6724.8663 1.6667648e+08 0.043343693 0.042692779 94.473262 38.393749 6726.7732 1.5975937e+08 0.041312598 0.040958341 94.549238 38.230104 6728.6801 1.5019380e+08 0.040716206 0.040592011 94.614090 38.090421 6730.5870 1.4452966e+08 0.038976847 0.041183754 94.678940 37.950742 6732.4939 1.3979090e+08 0.037474404 0.043831137 94.743783 37.811085 6734.4008 1.3649026e+08 0.036748413 0.049329483 94.807963 37.672087 6736.3077 1.3697936e+08 0.038235149 0.051518426 94.867825 37.537393 6738.2146 1.3674344e+08 0.039178441 0.058502835 94.928328 37.402057 6740.1216 1.3202731e+08 0.038678018 0.064258028 94.993183 37.262375 6742.0285 1.2712641e+08 0.036454382 0.068680130 95.057420 37.122693 6743.9354 1.2288350e+08 0.031936788 0.077357521 95.117282 36.983010 6745.8423 1.1569549e+08 0.030572919 0.078920981 95.177144 36.843328 6747.7492 1.1304341e+08 0.026287700 0.067103237 95.237009 36.703646 6749.6561 1.0876862e+08 0.024431010 0.072098287 95.298248 36.560759 6751.5630 1.0413140e+08 0.021721321 0.073949724 95.370072 36.393171 6753.4699 98081918. 0.019746404 0.074498114 95.436585 36.240190 6755.3769 88967815. 0.017238453 0.074440118 95.496446 36.105495 6757.2838 84338603. 0.014952035 0.075878897 95.556310 35.968608 6759.1907 82574850. 0.015669751 0.075865968 95.616176 35.828924 6761.0976 76839527. 0.015483014 0.077976288 95.676040 35.689241 6763.0045 68915015. 0.018873318 0.076451478 95.735902 35.549559 6764.9114 56116687. 0.017703634 0.079526949 95.795765 35.409876 6766.8183 49927237. 0.014517657 0.081564817 95.855631 35.270191 6768.7252 47188140. 0.0067441132 0.083465605 95.913371 35.132632 6770.6322 49599400. -0.00058688858 0.088412943 95.968247 34.997938 6772.5391 54804857. -0.011477365 0.093038043 96.030264 34.849384 6774.4460 58269683. -0.069750530 0.097663142 96.102088 34.681799 6776.3529 61304062. -0.020627711 0.10228824 96.161191 34.535157 6778.2598 56340051. 0.074289827 0.10691334 96.216067 34.395475