# # 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 = 44.355631 km # Date (UTC) = 2015-12-13T08:08:18.675 # Date (julian) = 2457369.83910503 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6502.2984 7.5187176e+10 0.053371876 0.032976285 -1.1395771 51.836657 6504.1760 6.7892741e+10 0.060966948 0.033542472 -1.2378241 51.761335 6506.0536 6.1507296e+10 0.068801069 0.034108659 -1.3360712 51.686012 6507.9312 5.5854150e+10 0.076924683 0.034674846 -1.4300222 51.608552 6509.8088 5.0855688e+10 0.085377440 0.035241034 -1.5217070 51.529964 6511.6864 4.6418194e+10 0.094181076 0.035807221 -1.6133918 51.451377 6513.5640 4.2578077e+10 0.10337348 0.036373408 -1.7070437 51.374757 6515.4416 3.9104212e+10 0.11291161 0.036939596 -1.8020033 51.299444 6517.3192 3.6026229e+10 0.12282875 0.037505783 -1.8969628 51.224132 6519.1969 3.3288234e+10 0.13312356 0.038071970 -1.9901318 51.147029 6521.0745 3.0817689e+10 0.14376421 0.038638158 -2.0818166 51.068443 6522.9521 2.8527950e+10 0.15206082 0.039166561 -2.1735014 50.989856 6524.8297 2.6443197e+10 0.15850318 0.039721706 -2.2635782 50.911264 6526.7073 2.4509136e+10 0.16314124 0.040409589 -2.3520003 50.832666 6528.5849 2.2787691e+10 0.16734385 0.041906476 -2.4404224 50.754068 6530.4625 2.1262768e+10 0.17156071 0.044476182 -2.5302779 50.676914 6532.3401 1.9805411e+10 0.17528469 0.046968311 -2.6219629 50.601601 6534.2177 1.8450250e+10 0.17674717 0.048005459 -2.7136480 50.526289 6536.0953 1.7150941e+10 0.17641610 0.047875782 -2.8040711 50.449714 6537.9729 1.5936425e+10 0.17743904 0.049143915 -2.8924817 50.371128 6539.8505 1.4852730e+10 0.17700831 0.050673171 -2.9808923 50.292541 6541.7281 1.3851461e+10 0.17464637 0.051090401 -3.0682175 50.213955 6543.6057 1.2929987e+10 0.17270285 0.051540873 -3.1533534 50.135367 6545.4833 1.2057652e+10 0.17112870 0.052459897 -3.2384892 50.056780 6547.3610 1.1254045e+10 0.16980705 0.053424629 -3.3236283 49.978189 6549.2386 1.0551678e+10 0.16792459 0.054209393 -3.4087755 49.899591 6551.1162 9.8968964e+09 0.16639170 0.055276528 -3.4939227 49.820993 6552.9938 9.2777097e+09 0.16537325 0.055336634 -3.5790674 49.743131 6554.8714 8.7089067e+09 0.16380278 0.054850666 -3.6642035 49.667818 6556.7490 8.1531921e+09 0.16177345 0.053903010 -3.7493396 49.592506 6558.6266 7.6356581e+09 0.15959867 0.052705369 -3.8344758 49.516637 6560.5042 7.1545003e+09 0.15739678 0.051819707 -3.9196119 49.438050 6562.3818 6.7091095e+09 0.15517128 0.050516599 -4.0047480 49.359464 6564.2594 6.3027687e+09 0.15250970 0.048654031 -4.0895039 49.280877 6566.1370 5.9230044e+09 0.15026043 0.047105372 -4.1713653 49.202290 6568.0146 5.5768175e+09 0.14866569 0.045758216 -4.2532268 49.123702 6569.8922 5.2645025e+09 0.14690405 0.044910495 -4.3350889 49.045114 6571.7698 4.9739117e+09 0.14474336 0.044293017 -4.4169612 48.966517 6573.6474 4.7020427e+09 0.14203935 0.043137920 -4.4988335 48.887920 6575.5251 4.4408473e+09 0.13942578 0.041847913 -4.5807057 48.809324 6577.4027 4.1924661e+09 0.13657383 0.039587890 -4.6625674 48.730736 6579.2803 3.9689168e+09 0.13344151 0.036916422 -4.7444290 48.652148 6581.1579 3.7565629e+09 0.13101494 0.035548803 -4.8262907 48.573561 6583.0355 3.5770576e+09 0.12936337 0.035003708 -4.9081521 48.494974 6584.9131 3.4007926e+09 0.12764872 0.034018118 -4.9900136 48.416388 6586.7907 3.2334778e+09 0.12576846 0.033161075 -5.0718750 48.337802 6588.6683 3.0636009e+09 0.12414152 0.033156750 -5.1507872 48.259214 6590.5459 2.8908778e+09 0.12214850 0.030046594 -5.2293745 48.180626 6592.4235 2.7306401e+09 0.12012078 0.027662165 -5.3079618 48.102039 6594.3011 2.5814277e+09 0.11793666 0.026007223 -5.3865576 48.023442 6596.1787 2.4525057e+09 0.11531383 0.025726461 -5.4651549 47.944844 6598.0563 2.3312849e+09 0.11351517 0.025380270 -5.5437523 47.866246 6599.9339 2.2203613e+09 0.11256895 0.024985902 -5.6197440 47.787657 6601.8115 2.1123072e+09 0.11180616 0.027427883 -5.6950567 47.709071 6603.6892 2.0050139e+09 0.11022622 0.026255297 -5.7703694 47.630484 6605.5668 1.9033212e+09 0.10953756 0.027140510 -5.8456820 47.551897 6607.4444 1.8099234e+09 0.10763750 0.024829538 -5.9209945 47.473310 6609.3220 1.7211476e+09 0.10453762 0.023801573 -5.9963071 47.394722 6611.1996 1.6445568e+09 0.10153434 0.024831183 -6.0716197 47.316135 6613.0772 1.5695010e+09 0.10022574 0.023601910 -6.1469324 47.237549 6614.9548 1.4957020e+09 0.098667468 0.023282677 -6.2222452 47.158962 6616.8324 1.4319729e+09 0.096779151 0.023412944 -6.2975641 47.080369 6618.7100 1.3664255e+09 0.095693987 0.024306935 -6.3728866 47.001771 6620.5876 1.3036223e+09 0.094777799 0.024956555 -6.4482092 46.923173 6622.4652 1.2451931e+09 0.093535030 0.024634167 -6.5235260 46.844581 6624.3428 1.1878981e+09 0.092122303 0.025045823 -6.5988388 46.765995 6626.2204 1.1353288e+09 0.091133061 0.026310052 -6.6741515 46.687408 6628.0980 1.0889294e+09 0.089853580 0.025742900 -6.7524675 46.603673 6629.9756 1.0319883e+09 0.088872008 0.025932705 -6.8335116 46.515261 6631.8533 9.7226151e+08 0.087493839 0.026017439 -6.9145556 46.426848 6633.7309 9.1538301e+08 0.086450196 0.026279854 -6.9883100 46.346388 6635.6085 8.6122066e+08 0.085395192 0.026491036 -7.0603482 46.267801 6637.4861 8.2336840e+08 0.084381139 0.025923348 -7.1323863 46.189213 6639.3637 7.9195215e+08 0.083705636 0.025498088 -7.2044319 46.110619 6641.2413 7.5744474e+08 0.084186642 0.025149120 -7.2764798 46.032021 6643.1189 7.2249701e+08 0.083756074 0.025210570 -7.3485278 45.953424 6644.9965 6.8993471e+08 0.082889010 0.025451306 -7.4182702 45.874834 6646.8741 6.6144768e+08 0.081737618 0.026372613 -7.4870338 45.796246 6648.7517 6.3531657e+08 0.080619792 0.027467483 -7.5557974 45.717659 6650.6293 6.1285597e+08 0.080138819 0.026399306 -7.6245610 45.639072 6652.5069 5.8644366e+08 0.079655158 0.027389997 -7.6933247 45.560486 6654.3845 5.6333169e+08 0.078716783 0.027872411 -7.7620883 45.481900 6656.2621 5.4118972e+08 0.076957531 0.028253496 -7.8308519 45.403313 6658.1397 5.1894584e+08 0.075598840 0.030308921 -7.8996155 45.324725 6660.0174 5.0104556e+08 0.074222100 0.031641770 -7.9683791 45.246137 6661.8950 4.8281403e+08 0.072792601 0.032990771 -8.0417865 45.162243 6663.7726 4.6198201e+08 0.071685872 0.032269116 -8.1191473 45.073832 6665.6502 4.3993284e+08 0.071854366 0.027481801 -8.1965082 44.985420 6667.5278 4.1884301e+08 0.071558080 0.027297320 -8.2667787 44.905111 6669.4054 3.9762932e+08 0.070882120 0.027939344 -8.3355515 44.826513 6671.2830 3.7999393e+08 0.071069370 0.026869381 -8.4043242 44.747915 6673.1606 3.6145984e+08 0.070875255 0.027699404 -8.4705618 44.669326 6675.0382 3.5163715e+08 0.069548189 0.029871534 -8.5360509 44.590740 6676.9158 3.4234635e+08 0.067616718 0.032303959 -8.6015399 44.512153 6678.7934 3.2801643e+08 0.067141101 0.030405942 -8.6729085 44.426511 6680.6710 3.1408685e+08 0.068026334 0.029586319 -8.7465850 44.338098 6682.5486 2.9501064e+08 0.068737612 0.030843718 -8.8201971 44.249763 6684.4262 2.8115221e+08 0.068807250 0.032675722 -8.8857221 44.171133 6686.3038 2.6917580e+08 0.068020609 0.033937866 -8.9512118 44.092545 6688.1815 2.6047608e+08 0.065787049 0.033827076 -9.0167016 44.013957 6690.0591 2.5372398e+08 0.064132710 0.033109096 -9.0790890 43.932250 6691.9367 2.4478305e+08 0.063130210 0.032780272 -9.1413118 43.850378 6693.8143 2.3295921e+08 0.062288068 0.031324743 -9.2035346 43.768505 6695.6919 2.2026372e+08 0.062136554 0.029732384 -9.2760209 43.680774 6697.5695 2.0563313e+08 0.061511907 0.030163335 -9.3496974 43.592363 6699.4471 1.9637211e+08 0.060142574 0.031177895 -9.4212933 43.505735 6701.3247 1.8994242e+08 0.058423164 0.031885870 -9.4835081 43.427147 6703.2023 1.8538555e+08 0.058257128 0.034181465 -9.5457230 43.348560 6705.0799 1.8329537e+08 0.058300680 0.036810672 -9.6089302 43.268719 6706.9575 1.7793545e+08 0.057909495 0.040112889 -9.6789227 43.180308 6708.8351 1.6789400e+08 0.057441009 0.040952999 -9.7489152 43.091897 6710.7127 1.5616425e+08 0.056052426 0.040636003 -9.8156955 43.007543 6712.5903 1.4853639e+08 0.054215103 0.042926018 -9.8779104 42.928955 6714.4679 1.4122422e+08 0.052304021 0.047338588 -9.9401252 42.850367 6716.3456 1.3822203e+08 0.050628213 0.048910324 -10.005133 42.768252 6718.2232 1.3180466e+08 0.048667654 0.050159965 -10.075126 42.679841 6720.1008 1.2462302e+08 0.047781188 0.050408091 -10.145119 42.591430 6721.9784 1.2138899e+08 0.047730174 0.050598687 -10.207993 42.509344 6723.8560 1.1828226e+08 0.045856269 0.049846337 -10.266941 42.430746 6725.7336 1.1405183e+08 0.042042126 0.041117785 -10.325890 42.352148 6727.6112 1.0741205e+08 0.040975209 0.040146105 -10.389188 42.267750 6729.4888 98698900. 0.040016355 0.040719632 -10.455496 42.179339 6731.3664 94558249. 0.038321620 0.042479236 -10.521805 42.090928 6733.2440 92379548. 0.037266569 0.045249110 -10.584526 42.011126 6735.1216 89035353. 0.037468379 0.049422538 -10.646741 41.932538 6736.9992 89077556. 0.038910961 0.054132630 -10.708956 41.853950 6738.8768 87441595. 0.039481608 0.062148445 -10.771509 41.764253 6740.7544 85209274. 0.038486034 0.065339188 -10.834134 41.672157 6742.6320 80497810. 0.035444296 0.070150844 -10.897156 41.580459 6744.5097 74335714. 0.031391746 0.078187613 -10.963465 41.492046 6746.3873 71405033. 0.028762576 0.074484986 -11.029774 41.403634 6748.2649 70397327. 0.026014836 0.068410355 -11.093187 41.319082 6750.1425 69723730. 0.022833011 0.072247405 -11.152135 41.240486 6752.0201 68452187. 0.019161475 0.074111244 -11.211083 41.161889 6753.8977 65632389. 0.016212954 0.075882356 -11.271281 41.079957 6755.7753 61408498. 0.0089637567 0.074265430 -11.333906 40.991544 6757.6529 56735069. -0.022942486 0.074758690 -11.396531 40.903132 6759.5305 52051809. 0.00097369177 0.075947974 -11.459156 40.814720 6761.4081 50941106. 0.060909992 0.078001943 -11.521782 40.726308