# # 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 = 62.288764 km # Date (UTC) = 2013-12-17T11:05:51.541 # Date (julian) = 2456643.96240210 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6496.1034 6.9920372e+10 0.029231160 0.031108192 88.787885 29.979081 6498.3447 6.3394371e+10 0.036594506 0.031784072 88.842609 29.873542 6500.5861 5.7820667e+10 0.044151059 0.032459952 88.897332 29.768003 6502.8275 5.2892607e+10 0.051997904 0.033135832 88.952056 29.662464 6505.0689 4.8644349e+10 0.060279919 0.033811711 89.006780 29.556440 6507.3102 4.4846345e+10 0.069062107 0.034487591 89.061503 29.446993 6509.5516 4.1420182e+10 0.078424041 0.035163471 89.116227 29.337545 6511.7930 3.8328906e+10 0.088462658 0.035839351 89.168743 29.230301 6514.0344 3.5423445e+10 0.099167118 0.036515231 89.219564 29.124747 6516.2757 3.2822606e+10 0.11063274 0.037191111 89.270427 29.019194 6518.5171 3.0509616e+10 0.12288249 0.037866990 89.325141 28.913655 6520.7585 2.8322215e+10 0.13578193 0.038542870 89.379868 28.808116 6522.9998 2.6287094e+10 0.14657021 0.039179073 89.434593 28.702577 6525.2412 2.4322467e+10 0.15445228 0.039754686 89.489317 28.597038 6527.4826 2.2486310e+10 0.16116748 0.041066832 89.544041 28.491498 6529.7240 2.0800103e+10 0.16724001 0.043388982 89.595281 28.385959 6531.9653 1.9268490e+10 0.17258334 0.046633725 89.646095 28.280420 6534.2067 1.7841298e+10 0.17547053 0.048002379 89.696911 28.174876 6536.4481 1.6503198e+10 0.17642669 0.048191403 89.747732 28.069324 6538.6894 1.5298801e+10 0.17684069 0.049492404 89.798552 27.963772 6540.9308 1.4201478e+10 0.17542475 0.051293844 89.852397 27.858229 6543.1722 1.3259200e+10 0.17322056 0.051427085 89.907121 27.752690 6545.4136 1.2393928e+10 0.17107889 0.052459272 89.960999 27.647151 6547.6549 1.1571322e+10 0.16916639 0.053536423 90.011816 27.541612 6549.8963 1.0786621e+10 0.16752059 0.054879685 90.062633 27.436073 6552.1377 1.0070849e+10 0.16571445 0.055552113 90.113452 27.330524 6554.3790 9.4332364e+09 0.16344019 0.054840334 90.164273 27.224971 6556.6204 8.8506500e+09 0.16138194 0.053921912 90.215093 27.119419 6558.8618 8.2983064e+09 0.15893676 0.052504951 90.265907 27.013881 6561.1032 7.7611918e+09 0.15628292 0.051321843 90.316721 26.908342 6563.3445 7.2766879e+09 0.15400352 0.049529817 90.365418 26.804922 6565.5859 6.8517153e+09 0.15172944 0.047653090 90.412325 26.703291 6567.8273 6.4880480e+09 0.14999377 0.045917700 90.459233 26.601661 6570.0687 6.1660974e+09 0.14842135 0.044889070 90.509983 26.496186 6572.3100 5.8451845e+09 0.14646371 0.044052612 90.560797 26.390647 6574.5514 5.5180531e+09 0.14406704 0.042590171 90.611615 26.285102 6576.7928 5.1926622e+09 0.14163782 0.040458899 90.662439 26.179548 6579.0341 4.8771343e+09 0.13852649 0.037051729 90.713262 26.073995 6581.2755 4.5910951e+09 0.13592185 0.035513180 90.760686 25.968455 6583.5169 4.3331068e+09 0.13340098 0.034760042 90.807591 25.862916 6585.7583 4.1005673e+09 0.13068204 0.033364563 90.855704 25.758586 6587.9996 3.8932621e+09 0.12873072 0.033379849 90.906521 25.656956 6590.2410 3.7065368e+09 0.12639676 0.030613767 90.957338 25.555325 6592.4824 3.5290933e+09 0.12417175 0.027604994 91.005218 25.450760 6594.7237 3.3705740e+09 0.12204140 0.025775222 91.052122 25.345221 6596.9651 3.2228114e+09 0.11962494 0.025722886 91.099028 25.239679 6599.2065 3.0782356e+09 0.11809046 0.024942150 91.145942 25.134126 6601.4479 2.9433479e+09 0.11815179 0.027256607 91.192855 25.028573 6603.6892 2.7905754e+09 0.11704199 0.026255249 91.246275 24.917446 6605.9306 2.6284954e+09 0.11686532 0.027445748 91.303442 24.803110 6608.1720 2.4679886e+09 0.11485956 0.023727824 91.356909 24.691946 6610.4134 2.3198625e+09 0.11203824 0.024397926 91.403817 24.586407 6612.6547 2.2067157e+09 0.11044158 0.023831568 91.450724 24.480868 6614.8961 2.1128564e+09 0.10932213 0.023323118 91.497631 24.375329 6617.1375 2.0266132e+09 0.10790232 0.023484826 91.544538 24.269791 6619.3788 1.9409777e+09 0.10716949 0.024617322 91.591445 24.165206 6621.6202 1.8539091e+09 0.10607564 0.024883875 91.638349 24.063576 6623.8616 1.7728243e+09 0.10407841 0.024811029 91.685254 23.961945 6626.1030 1.6954664e+09 0.10269713 0.026459730 91.729483 23.857625 6628.3443 1.6241453e+09 0.10077567 0.025842895 91.772487 23.752072 6630.5857 1.5592681e+09 0.098886256 0.025929745 91.815988 23.647020 6632.8271 1.4919228e+09 0.097078233 0.026131518 91.862896 23.545390 6635.0684 1.4307606e+09 0.095310132 0.026410052 91.909803 23.443760 6637.3098 1.3702241e+09 0.093712737 0.026009674 91.956710 23.339904 6639.5512 1.3173193e+09 0.093144133 0.025431068 92.003618 23.234364 6641.7926 1.2723856e+09 0.093652614 0.025150992 92.050544 23.128714 6644.0339 1.2181417e+09 0.092862667 0.025347274 92.098915 23.014391 6646.2753 1.1599033e+09 0.092098890 0.026062653 92.147288 22.900057 6648.5167 1.1007433e+09 0.091215628 0.027310149 92.194583 22.795077 6650.7580 1.0482020e+09 0.090842082 0.026428776 92.241493 22.693433 6652.9994 1.0020685e+09 0.090587922 0.027525502 92.287703 22.591091 6655.2408 9.6467201e+08 0.089254437 0.027709712 92.330700 22.485552 6657.4822 9.2798707e+08 0.087468561 0.029460406 92.373698 22.380013 6659.7235 8.9534684e+08 0.085962151 0.031683668 92.419123 22.276901 6661.9649 8.6466320e+08 0.084402609 0.033026398 92.466030 22.175270 6664.2063 8.3302415e+08 0.083081910 0.031451317 92.513029 22.072844 6666.4477 7.9837244e+08 0.083016873 0.026995826 92.561403 21.958509 6668.6890 7.6238270e+08 0.081876915 0.028080512 92.609776 21.844173 6670.9304 7.2701859e+08 0.081749290 0.026897594 92.653910 21.736774 6673.1718 6.9661030e+08 0.081214696 0.027716110 92.696907 21.631235 6675.4131 6.7608081e+08 0.079136684 0.030589673 92.740806 21.526593 6677.6545 6.5703551e+08 0.077273502 0.031427760 92.787716 21.424950 6679.8959 6.3412526e+08 0.077117508 0.029527452 92.834627 21.323307 6682.1373 6.1110465e+08 0.077665250 0.030529412 92.882521 21.213131 6684.3786 5.8652004e+08 0.077599607 0.032673306 92.930894 21.098795 6686.6200 5.6293972e+08 0.076285834 0.034121811 92.977126 20.989520 6688.8614 5.4220676e+08 0.073332484 0.033984025 93.020123 20.887889 6691.1027 5.2205506e+08 0.072303719 0.032977022 93.063121 20.786259 6693.3441 5.0130930e+08 0.071469513 0.031486035 93.110634 20.673955 6695.5855 4.7548034e+08 0.071186071 0.029751926 93.159007 20.559620 6697.8269 4.5695223e+08 0.070500393 0.030195906 93.204338 20.452475 6700.0682 4.4262923e+08 0.068885433 0.030718329 93.247335 20.350845 6702.3096 4.3199954e+08 0.067380154 0.033123952 93.290343 20.249083 6704.5510 4.2195622e+08 0.067643541 0.036448112 93.334315 20.134781 6706.7923 4.0017318e+08 0.067457706 0.039825427 93.378290 20.020446 6709.0337 3.8133292e+08 0.066888857 0.041111094 93.421552 19.915422 6711.2751 3.6822591e+08 0.065009521 0.041005214 93.464555 19.813778 6713.5165 3.5474883e+08 0.062815051 0.045554571 93.508503 19.709903 6715.7578 3.4461838e+08 0.060837482 0.048153683 93.556876 19.595567 6717.9992 3.2790946e+08 0.058718741 0.049812463 93.605249 19.481231 6720.2406 3.1184297e+08 0.057702583 0.050391891 93.648774 19.378353 6722.4820 3.0197961e+08 0.057291343 0.050009383 93.691772 19.276723 6724.7233 2.9451884e+08 0.053517334 0.043886421 93.735105 19.170729 6726.9647 2.8706369e+08 0.051079955 0.040960068 93.779080 19.056394 6729.2061 2.7442630e+08 0.050614352 0.040908076 93.822986 18.942941 6731.4474 2.6195163e+08 0.048711638 0.042640519 93.865984 18.841311 6733.6888 2.5112350e+08 0.047490181 0.047664084 93.908982 18.739680 6735.9302 2.4794966e+08 0.048787931 0.050280894 93.952482 18.631546 6738.1716 2.4338226e+08 0.050056351 0.058265602 93.996464 18.517193 6740.4129 2.3636258e+08 0.049610805 0.064755784 94.041488 18.402845 6742.6543 2.2848807e+08 0.046631309 0.070205084 94.089861 18.288509 6744.8957 2.2049915e+08 0.042909143 0.078486194 94.138234 18.174173 6747.1370 2.1505615e+08 0.038296702 0.067313981 94.177661 18.072079 6749.3784 2.1030846e+08 0.037523649 0.072174322 94.216749 17.970449 6751.6198 2.0789951e+08 0.034149939 0.073973722 94.257817 17.865452 6753.8612 2.0109151e+08 0.032398288 0.075764172 94.301791 17.755514 6756.1025 1.9543760e+08 0.029881767 0.074430748 94.346343 17.644999 6758.3439 1.8885913e+08 0.029578192 0.074432561 94.394716 17.530663 6760.5853 1.8225561e+08 0.030113460 0.077177373 94.443090 17.416326 6762.8267 1.7672679e+08 0.035043422 0.076717388 94.487695 17.301990 6765.0680 1.6888986e+08 0.037697342 0.079543611 94.531673 17.187655 6767.3094 1.6359074e+08 0.036943653 0.081629322 94.575649 17.073319 6769.5508 1.6057222e+08 0.032018347 0.085790116 94.619624 16.958983 6771.7921 1.5557510e+08 0.027978860 0.091226428 94.663600 16.846002 6774.0335 1.4913571e+08 0.023958535 0.096662741 94.707581 16.736047 6776.2749 1.4157591e+08 0.019955503 0.10209905 94.751562 16.625937 6778.5163 1.3690681e+08 0.015932269 0.10753537 94.795537 16.511602 6780.7576 1.3354231e+08 0.011904634 0.11297168 94.839512 16.397267 6782.9990 1.2935469e+08 0.0078922546 0.11840799 94.883486 16.286280 6785.2404 1.2370833e+08 0.0039172056 0.12384430 94.927461 16.176341 6787.4817 1.1692591e+08 -1.6416162e-05 0.12928062 94.971438 16.064258 6789.7231 1.1417981e+08 -0.0039592506 0.13471693 95.015415 15.949922 6791.9645 1.1255222e+08 -0.0078971551 0.14015324 95.059393 15.836525 6794.2059 1.1041866e+08 -0.011825639 0.14558956 95.103367 15.726587 6796.4472 1.0660296e+08 -0.015735705 0.15102587 95.147342 15.616649 6798.6886 99643767. -0.019609427 0.15646218 95.191316 15.502579 6800.9300 96998735. -0.023521935 0.16189849 95.235291 15.388244 6803.1713 96806882. -0.027458288 0.16733481 95.279266 15.276835 6805.4127 93982508. -0.031365303 0.17277112 95.323241 15.166896 6807.6541 91205498. -0.035271935 0.17820743 95.365495 15.055236 6809.8955 85856618. -0.039146728 0.18364374 95.405074 14.940900 6812.1368 81819081. -0.043029943 0.18908006 95.445908 14.825235 6814.3782 78779005. -0.046921418 0.19451637 95.496166 14.699589 6816.6196 74875605. -0.050798777 0.19995268 95.545621 14.575388 6818.8610 71832651. -0.054684811 0.20538900 95.589596 14.461052 6821.1023 67467611. -0.058544490 0.21082531 95.633570 14.346716 6823.3437 66607468. -0.062468672 0.21626162 95.677550 14.236121 6825.5851 63922869. -0.066362974 0.22169793 95.721532 14.126166 6827.8264 62651384. -0.070292421 0.22713425 95.766240 14.007108 6830.0678 62691943. -0.074263483 0.23257056 95.811475 13.881461 6832.3092 59228090. -0.078163400 0.23800687 95.855966 13.765089 6834.5506 54226689. -0.082377991 0.24344318 95.899940 13.655151 6836.7919 47181741. -0.087883412 0.24887950 95.944313 13.538652 6839.0333 43345734. -0.090758145 0.25431581 95.989543 13.407980 6841.2747 46892807. -0.092085666 0.25975212 96.034365 13.284081