# # 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 = 48.576946 km # Date (UTC) = 2015-01-16T09:55:40.892 # Date (julian) = 2457038.91366773 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6499.7829 9.0377698e+10 0.043623300 0.032217743 -27.011297 52.664400 6501.8802 7.7792663e+10 0.051330795 0.032850172 -27.130627 52.561529 6503.9775 7.0291947e+10 0.059536189 0.033482600 -27.249957 52.458659 6506.0747 6.4369063e+10 0.068155392 0.034115029 -27.376288 52.338019 6508.1720 5.8777394e+10 0.077091024 0.034747457 -27.503263 52.215746 6510.2693 5.3159659e+10 0.086266490 0.035379886 -27.633949 52.097187 6512.3666 4.7995076e+10 0.095783197 0.036012314 -27.765625 51.979619 6514.4638 4.3899394e+10 0.10592141 0.036644742 -27.883660 51.869067 6516.5611 4.0661112e+10 0.11673410 0.037277171 -27.994760 51.762082 6518.6584 3.7859348e+10 0.12810314 0.037909599 -28.109556 51.652634 6520.7557 3.5081766e+10 0.13984128 0.038542028 -28.236530 51.535065 6522.8530 3.2154743e+10 0.14947220 0.039140606 -28.363004 51.416996 6524.9502 2.9256187e+10 0.15645425 0.039764534 -28.485276 51.294724 6527.0475 2.6698821e+10 0.16177222 0.040750960 -28.607547 51.172451 6529.1448 2.4598669e+10 0.16585494 0.042466412 -28.714840 51.069191 6531.2421 2.2824389e+10 0.17002422 0.045581002 -28.821825 50.966321 6533.3393 2.1218145e+10 0.17396996 0.047663796 -28.937213 50.852786 6535.4366 1.9554861e+10 0.17539985 0.048034894 -29.059484 50.730515 6537.5339 1.7968317e+10 0.17641851 0.048936933 -29.173543 50.616456 6539.6312 1.6614266e+10 0.17628479 0.050407644 -29.276413 50.513586 6541.7284 1.5463991e+10 0.17433576 0.051090299 -29.379321 50.410667 6543.8257 1.4358661e+10 0.17205506 0.051598609 -29.496751 50.288579 6545.9230 1.3256040e+10 0.16986023 0.052463836 -29.614319 50.166309 6548.0203 1.2256845e+10 0.16871650 0.053673702 -29.719150 50.057284 6550.1176 1.1439135e+10 0.16736152 0.055014795 -29.822020 49.950298 6552.2148 1.0708239e+10 0.16570935 0.055532692 -29.929253 49.836642 6554.3121 9.9576070e+09 0.16361174 0.054838930 -30.042120 49.714371 6556.4094 9.2141981e+09 0.16170434 0.053952938 -30.150613 49.598113 6558.5067 8.5755646e+09 0.15974075 0.052807561 -30.249368 49.495243 6560.6039 8.0583811e+09 0.15730711 0.051729775 -30.348124 49.392373 6562.7012 7.5537729e+09 0.15504226 0.050212664 -30.459293 49.272433 6564.7985 7.0536382e+09 0.15281718 0.048409717 -30.572159 49.150160 6566.8958 6.5931730e+09 0.15077689 0.046676146 -30.674407 49.039393 6568.9931 6.2171427e+09 0.14857145 0.044858808 -30.773177 48.932392 6571.0903 5.8819347e+09 0.14693234 0.044478604 -30.874985 48.820452 6573.1876 5.5340503e+09 0.14494287 0.043506929 -30.983148 48.698179 6575.2849 5.1777598e+09 0.14260150 0.042088876 -31.088647 48.579730 6577.3822 4.8576906e+09 0.13982002 0.039620084 -31.183288 48.476859 6579.4794 4.6037669e+09 0.13646445 0.036806927 -31.277929 48.373988 6581.5767 4.3590313e+09 0.13332587 0.035421970 -31.379333 48.256242 6583.6740 4.1203169e+09 0.13049380 0.034680519 -31.482794 48.133971 6585.7713 3.8916266e+09 0.12798342 0.033354157 -31.580606 48.021489 6587.8686 3.6791086e+09 0.12633802 0.033350807 -31.675247 47.914505 6589.9658 3.4914556e+09 0.12447634 0.031129859 -31.771741 47.804307 6592.0631 3.3011552e+09 0.12220826 0.028012231 -31.875202 47.682035 6594.1604 3.1166131e+09 0.12005456 0.026084481 -31.977234 47.561042 6596.2577 2.9577506e+09 0.11751335 0.025726102 -32.063646 47.454058 6598.3549 2.8218578e+09 0.11569283 0.025237705 -32.150057 47.347073 6600.4522 2.6882304e+09 0.11519824 0.025919549 -32.247611 47.230098 6602.5495 2.5327202e+09 0.11450723 0.027047717 -32.351072 47.107825 6604.6468 2.3790503e+09 0.11352667 0.026455308 -32.445546 46.995779 6606.7440 2.2432569e+09 0.11261933 0.026166931 -32.531957 46.892909 6608.8413 2.1282572e+09 0.10969575 0.023710127 -32.618368 46.789640 6610.9386 2.0427644e+09 0.10651849 0.024899793 -32.704779 46.682655 6613.0359 1.9615168e+09 0.10519647 0.023586755 -32.791190 46.575670 6615.1332 1.8810318e+09 0.10362647 0.023255629 -32.885831 46.458495 6617.2304 1.7951818e+09 0.10206911 0.023515650 -32.984588 46.336222 6619.3277 1.7017965e+09 0.10111365 0.024604986 -33.074454 46.222208 6621.4250 1.6248519e+09 0.099787078 0.024948581 -33.156751 46.115223 6623.5223 1.5609634e+09 0.097633506 0.024685318 -33.240340 46.006557 6625.6195 1.4877906e+09 0.095997142 0.026136909 -33.334396 45.884285 6627.7168 1.4089442e+09 0.093769387 0.025593708 -33.428451 45.762013 6629.8141 1.3363963e+09 0.092121883 0.025961913 -33.510941 45.654776 6631.9114 1.2733843e+09 0.090106409 0.026023343 -33.593238 45.547792 6634.0087 1.2208867e+09 0.088550104 0.026327474 -33.682040 45.432350 6636.1059 1.1604680e+09 0.087298063 0.026508615 -33.776096 45.310079 6638.2032 1.0995509e+09 0.086583841 0.025662789 -33.865131 45.194333 6640.3005 1.0480577e+09 0.086825138 0.025233887 -33.947427 45.087346 6642.3978 1.0009080e+09 0.086887693 0.025167974 -34.029705 44.980359 6644.4950 9.6459580e+08 0.085925634 0.025397110 -34.107918 44.873375 6646.5923 9.2806092e+08 0.084880048 0.026226752 -34.186101 44.766390 6648.6896 8.9344982e+08 0.083744706 0.027425903 -34.270610 44.650747 6650.7869 8.5234910e+08 0.083321545 0.026435375 -34.359961 44.528474 6652.8842 8.0832932e+08 0.082989227 0.027493787 -34.444403 44.412921 6654.9814 7.7214667e+08 0.081825394 0.027618127 -34.522596 44.305921 6657.0787 7.3821097e+08 0.079896629 0.028992410 -34.600901 44.198766 6659.1760 7.0302471e+08 0.078369488 0.031797888 -34.690239 44.076515 6661.2733 6.6598163e+08 0.077062465 0.032674128 -34.779577 43.954263 6663.3705 6.3733553e+08 0.075753367 0.032380527 -34.855436 43.845482 6665.4678 6.1524717e+08 0.075249048 0.027780595 -34.929514 43.738481 6667.5651 5.9442010e+08 0.074504057 0.027311027 -35.008386 43.624555 6669.6624 5.6619100e+08 0.073567112 0.027675400 -35.093036 43.502283 6671.7596 5.3437721e+08 0.073345579 0.026876174 -35.174224 43.385010 6673.8569 5.1189850e+08 0.072448539 0.028740815 -35.248291 43.278026 6675.9542 4.9309392e+08 0.070094083 0.031626009 -35.322358 43.171041 6678.0515 4.7440449e+08 0.069000776 0.030902180 -35.405914 43.050348 6680.1488 4.5052233e+08 0.069292409 0.029473540 -35.490561 42.928078 6682.2460 4.2904951e+08 0.070092676 0.030612524 -35.567058 42.820752 6684.3433 4.1150825e+08 0.070302123 0.032671514 -35.641125 42.717882 6686.4406 4.0142319e+08 0.069339555 0.034017427 -35.717192 42.608412 6688.5379 3.8433741e+08 0.066810497 0.033909349 -35.797140 42.486139 6690.6351 3.6601784e+08 0.065550411 0.033043075 -35.874951 42.367133 6692.7324 3.5069413e+08 0.064714067 0.031914809 -35.944903 42.260149 6694.8297 3.3288042e+08 0.064110010 0.030098157 -36.014854 42.153164 6696.9270 3.1928370e+08 0.063629941 0.030060926 -36.092637 42.034202 6699.0243 3.0350106e+08 0.062369039 0.031568050 -36.172585 41.911929 6701.1215 2.8834129e+08 0.060587652 0.031587770 -36.245964 41.799702 6703.2188 2.7687057e+08 0.060332316 0.034222770 -36.315915 41.692718 6705.3161 2.6728582e+08 0.060324007 0.037230548 -36.388133 41.582266 6707.4134 2.5492720e+08 0.059861644 0.040127612 -36.468081 41.459993 6709.5106 2.4017778e+08 0.058945297 0.040807749 -36.547025 41.339256 6711.6079 2.2629975e+08 0.056921500 0.041383880 -36.616977 41.232271 6713.7052 2.1773053e+08 0.054704513 0.046237174 -36.686928 41.125285 6715.8025 2.0945686e+08 0.052811815 0.048199337 -36.760426 41.008056 6717.8998 1.9918254e+08 0.050632286 0.049818614 -36.835670 40.885786 6719.9970 1.8722113e+08 0.049254865 0.050422588 -36.905799 40.771826 6722.0943 1.7764365e+08 0.049072022 0.050488615 -36.971636 40.664840 6724.1916 1.7117837e+08 0.046503309 0.048326800 -37.038541 40.556119 6726.2889 1.6607239e+08 0.043010196 0.040953973 -37.113785 40.433848 6728.3861 1.5800117e+08 0.042377953 0.040175387 -37.189029 40.311578 6730.4834 1.4914812e+08 0.040802955 0.041041727 -37.264272 40.189305 6732.5807 1.3834048e+08 0.039316527 0.043847113 -37.339516 40.067033 6734.6780 1.3013301e+08 0.038914731 0.049312808 -37.406664 39.957918 6736.7753 1.2356459e+08 0.040488377 0.053285884 -37.472502 39.850933 6738.8725 1.2183841e+08 0.041306294 0.062124756 -37.540364 39.739392 6740.9698 1.1773155e+08 0.040241668 0.065707107 -37.610906 39.621823 6743.0671 1.1018060e+08 0.036597316 0.071499976 -37.682877 39.502824 6745.1644 1.0726436e+08 0.033560013 0.078635982 -37.758121 39.380552 6747.2616 1.0337035e+08 0.029019833 0.067271089 -37.830963 39.260995 6749.3589 1.0259592e+08 0.028319942 0.072179662 -37.892686 39.154011 6751.4562 98275134. 0.025256444 0.073904551 -37.954409 39.047026 6753.5535 95136829. 0.023276172 0.074768418 -38.022722 38.928616 6755.6507 95973886. 0.021289163 0.074320034 -38.093262 38.806343 6757.7480 95304044. 0.020167642 0.074470002 -38.163804 38.684071 6759.8453 91154834. 0.020849965 0.076023940 -38.234346 38.561800 6761.9426 88815656. 0.024283531 0.078046100 -38.304887 38.439529 6764.0399 82850393. 0.027193477 0.079485195 -38.375427 38.317258 6766.1371 80472422. 0.028612929 0.080023947 -38.442721 38.200615 6768.2344 81516293. 0.025430447 0.081699493 -38.504444 38.093629 6770.3317 77475232. 0.020786500 0.087684192 -38.566167 37.986643 6772.4290 76624740. 0.016823456 0.092771012 -38.631750 37.869731 6774.5262 70749614. 0.012279658 0.097857832 -38.697588 37.752162 6776.6235 67059162. 0.0076244622 0.10294465 -38.767243 37.630778 6778.7208 67998075. 0.0031293763 0.10803147 -38.837785 37.508507 6780.8181 64345543. -0.0026446660 0.11311829 -38.905105 37.386235 6782.9154 60995403. -0.0098596169 0.11820511 -38.970944 37.263962 6785.0126 54486238. -0.022443941 0.12329193 -39.036782 37.141690 6787.1099 51671180. -0.071296579 0.12837875 -39.102620 37.019419 6789.2072 50925551. -0.039069604 0.13346557 -39.168458 36.899181 6791.3045 49255016. 0.037598440 0.13855239 -39.234296 36.781613