# # 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 = 51.784652 km # Date (UTC) = 2013-11-17T09:50:24.452 # Date (julian) = 2456613.91000523 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6495.5982 6.3371632e+10 0.035057616 0.030955856 -17.395840 63.822889 6497.7236 5.8800667e+10 0.041126701 0.031596765 -17.636173 63.722806 6499.8490 5.5082772e+10 0.047156289 0.032237675 -17.874464 63.622725 6501.9744 5.1601135e+10 0.053299137 0.032878585 -18.131550 63.512117 6504.0998 4.7900342e+10 0.059607543 0.033519494 -18.409564 63.389791 6506.2252 4.4373079e+10 0.066213943 0.034160404 -18.654346 63.279258 6508.3506 4.1242579e+10 0.073281747 0.034801313 -18.883105 63.174411 6510.4760 3.8679812e+10 0.081103718 0.035442223 -19.111864 63.072309 6512.6014 3.6395040e+10 0.089776923 0.036083133 -19.340623 62.972226 6514.7268 3.4064349e+10 0.099215951 0.036724042 -19.567104 62.869865 6516.8522 3.1848484e+10 0.10958304 0.037364952 -19.791098 62.765018 6518.9776 2.9640193e+10 0.12075486 0.038005861 -20.013282 62.660170 6521.1030 2.7573698e+10 0.13284303 0.038646771 -20.232509 62.555322 6523.2284 2.5701249e+10 0.14241437 0.039235728 -20.451736 62.449131 6525.3538 2.4029309e+10 0.15025798 0.039741833 -20.670964 62.339518 6527.4792 2.2389337e+10 0.15753196 0.041064401 -20.895872 62.227574 6529.6046 2.0608298e+10 0.16380274 0.043198920 -21.146085 62.105247 6531.7300 1.8838628e+10 0.16945522 0.046291263 -21.378870 61.987812 6533.8554 1.7210806e+10 0.17291104 0.047883125 -21.583800 61.878199 6535.9808 1.5874647e+10 0.17331991 0.047798810 -21.790096 61.769952 6538.1063 1.4775343e+10 0.17435063 0.049208419 -21.999792 61.665105 6540.2317 1.3789395e+10 0.17340068 0.050963541 -22.207693 61.559360 6542.3571 1.2896737e+10 0.17100976 0.051137796 -22.407858 61.449745 6544.4825 1.2052522e+10 0.16919812 0.052035728 -22.608023 61.340129 6546.6079 1.1231060e+10 0.16735681 0.052964698 -22.808187 61.230516 6548.7333 1.0466396e+10 0.16567091 0.053886624 -23.008342 61.120902 6550.8587 9.7803873e+09 0.16432535 0.055200363 -23.203789 61.011288 6552.9841 9.1976900e+09 0.16336769 0.055339077 -23.399188 60.901674 6555.1095 8.6561032e+09 0.16192192 0.054761381 -23.594586 60.792061 6557.2349 8.1610057e+09 0.16012611 0.053718886 -23.789985 60.682447 6559.3603 7.6847122e+09 0.15792781 0.052346516 -23.977803 60.572834 6561.4857 7.2395349e+09 0.15566552 0.051133347 -24.163669 60.463221 6563.6111 6.8173775e+09 0.15340031 0.049221482 -24.349537 60.353607 6565.7365 6.4226033e+09 0.15146931 0.047482105 -24.535405 60.243993 6567.8619 6.0503416e+09 0.15014394 0.045888436 -24.721272 60.134379 6569.9873 5.6961052e+09 0.14886881 0.044916682 -24.907138 60.024766 6572.1127 5.3750573e+09 0.14711574 0.044165617 -25.090620 59.912767 6574.2381 5.0730781e+09 0.14467353 0.042740647 -25.271720 59.798387 6576.3635 4.7864738e+09 0.14234212 0.040952994 -25.450905 59.685923 6578.4889 4.5072999e+09 0.13948662 0.037877575 -25.627241 59.576309 6580.6143 4.2595385e+09 0.13678074 0.035953043 -25.796879 59.469592 6582.7397 4.0570145e+09 0.13464177 0.035092498 -25.951169 59.369511 6584.8651 3.8875230e+09 0.13269941 0.034044250 -26.105459 59.269431 6586.9905 3.7305148e+09 0.13100788 0.033158492 -26.275400 59.156399 6589.1159 3.5599226e+09 0.12936168 0.032816001 -26.446969 59.042021 6591.2413 3.3825968e+09 0.12729418 0.028929604 -26.614690 58.927641 6593.3667 3.2113134e+09 0.12548209 0.026761276 -26.781494 58.813260 6595.4921 3.0515068e+09 0.12320458 0.025674606 -26.948298 58.702261 6597.6175 2.9034441e+09 0.12122951 0.025527857 -27.115101 58.592647 6599.7429 2.7626568e+09 0.12027755 0.024974414 -27.281905 58.480122 6601.8683 2.6333943e+09 0.11994166 0.027454628 -27.448709 58.365743 6603.9937 2.5064000e+09 0.11844590 0.026074982 -27.613070 58.251364 6606.1191 2.3818926e+09 0.11811186 0.027289865 -27.775108 58.136984 6608.2445 2.2624924e+09 0.11572424 0.023725906 -27.935171 58.022604 6610.3700 2.1475882e+09 0.11270299 0.024356458 -28.092442 57.908225 6612.4954 2.0391775e+09 0.11080150 0.023950643 -28.249714 57.793846 6614.6208 1.9371441e+09 0.10955417 0.023512816 -28.406987 57.679466 6616.7462 1.8362515e+09 0.10794505 0.023399409 -28.563221 57.564047 6618.8716 1.7353197e+09 0.10706622 0.024428928 -28.715727 57.444902 6620.9970 1.6484810e+09 0.10598612 0.025088468 -28.865953 57.328036 6623.1224 1.5773009e+09 0.10408129 0.024537161 -28.999393 57.227955 6625.2478 1.5219093e+09 0.10212120 0.025693269 -29.132833 57.127874 6627.3732 1.4724071e+09 0.099595852 0.025460961 -29.276590 57.017477 6629.4986 1.4144266e+09 0.098158636 0.026018961 -29.424330 56.903099 6631.6240 1.3458618e+09 0.096482442 0.025994149 -29.572071 56.785750 6633.7494 1.2842775e+09 0.095261560 0.026283087 -29.719812 56.666604 6635.8748 1.2234513e+09 0.093999692 0.026530975 -29.865050 56.549960 6638.0002 1.1685709e+09 0.093140538 0.025671634 -30.008024 56.435580 6640.1256 1.1162235e+09 0.093143561 0.025255286 -30.150999 56.321200 6642.2510 1.0647315e+09 0.093211265 0.025161967 -30.293974 56.206821 6644.3764 1.0216153e+09 0.092185418 0.025384287 -30.436949 56.090877 6646.5018 9.7424852e+08 0.091145684 0.026179895 -30.579924 55.971731 6648.6272 9.2816493e+08 0.090025324 0.027384136 -30.721802 55.852586 6650.7526 8.7926782e+08 0.089553525 0.026427530 -30.860010 55.733441 6652.8780 8.3615721e+08 0.089123973 0.027492097 -30.995391 55.616808 6655.0034 8.0041643e+08 0.087852333 0.027611626 -31.112151 55.516728 6657.1288 7.7274773e+08 0.085739646 0.029050532 -31.228911 55.416647 6659.2542 7.4706764e+08 0.083993972 0.031781568 -31.361409 55.302578 6661.3796 7.2081784e+08 0.082411879 0.032728298 -31.499617 55.183433 6663.5050 6.9120448e+08 0.080927992 0.032343258 -31.631769 55.067316 6665.6304 6.6278807e+08 0.080446712 0.027514154 -31.760447 54.952937 6667.7558 6.3447851e+08 0.079588539 0.027381087 -31.891684 54.835997 6669.8812 6.0870391e+08 0.078627432 0.027450615 -32.025126 54.716852 6672.0066 5.8384786e+08 0.078097517 0.026883445 -32.156477 54.597707 6674.1320 5.5982645e+08 0.076975246 0.029066174 -32.285154 54.478561 6676.2574 5.3771700e+08 0.074584769 0.031879643 -32.412208 54.359416 6678.3828 5.1360809e+08 0.073693592 0.030680551 -32.536120 54.240271 6680.5082 4.9095083e+08 0.074337093 0.029551168 -32.661182 54.121130 6682.6336 4.6830928e+08 0.075134948 0.030908676 -32.789837 54.002005 6684.7591 4.5128146e+08 0.075169576 0.032692611 -32.917126 53.883562 6686.8845 4.3397176e+08 0.073773289 0.034275674 -33.036272 53.769181 6689.0099 4.2059932e+08 0.070982360 0.034007150 -33.154931 53.655260 6691.1353 4.0424219e+08 0.070190989 0.032969350 -33.263366 53.550994 6693.2607 3.8735269e+08 0.069421369 0.031514665 -33.371802 53.446729 6695.3861 3.7502294e+08 0.068989462 0.029788558 -33.487174 53.332825 6697.5115 3.6394927e+08 0.068331916 0.030155993 -33.606320 53.213680 6699.6369 3.5316887e+08 0.066890255 0.031002780 -33.725465 53.094535 6701.7623 3.4194676e+08 0.065139087 0.032527922 -33.844610 52.975389 6703.8877 3.2511629e+08 0.065416310 0.035896491 -33.961597 52.856253 6706.0131 3.1053540e+08 0.065473727 0.038469173 -34.075958 52.737128 6708.1385 3.0001669e+08 0.065091309 0.040194383 -34.190325 52.617996 6710.2639 2.8950059e+08 0.063794603 0.040548148 -34.304704 52.498850 6712.3893 2.8339792e+08 0.061630956 0.042552742 -34.419084 52.379704 6714.5147 2.7369479e+08 0.059549655 0.047342103 -34.533464 52.260558 6716.6401 2.6046647e+08 0.057687656 0.049344164 -34.647101 52.141413 6718.7655 2.4722956e+08 0.055398843 0.051004622 -34.756714 52.022268 6720.8909 2.3300428e+08 0.055593733 0.050316540 -34.866603 51.903122 6723.0163 2.2066772e+08 0.054699607 0.049378038 -34.980981 51.783977 6725.1417 2.1233142e+08 0.050519848 0.041487502 -35.095360 51.664832 6727.2671 2.0398902e+08 0.049145090 0.040604517 -35.200595 51.541115 6729.3925 1.9633029e+08 0.048570640 0.040783807 -35.305443 51.417204 6731.5179 1.9155703e+08 0.046774382 0.042780776 -35.414396 51.297397 6733.6433 1.8577945e+08 0.045619727 0.047417081 -35.524010 51.178251 6735.7687 1.7825483e+08 0.046771213 0.050109489 -35.629988 51.059105 6737.8941 1.7064093e+08 0.048037390 0.056983827 -35.734837 50.939960 6740.0195 1.6317648e+08 0.047794859 0.064083724 -35.839685 50.820815 6742.1449 1.5824698e+08 0.045293345 0.068963905 -35.944534 50.701669 6744.2703 1.5201762e+08 0.040672699 0.078002509 -36.049381 50.582524 6746.3957 1.4384941e+08 0.038007891 0.074386382 -36.154228 50.463379 6748.5211 1.3788160e+08 0.035354445 0.069758639 -36.256844 50.344233 6750.6465 1.3553979e+08 0.032269077 0.073108131 -36.356926 50.225088 6752.7719 1.3108788e+08 0.029217070 0.073241190 -36.463178 50.096542 6754.8973 1.2498335e+08 0.027256443 0.074770420 -36.579945 49.951973 6757.0228 1.1610971e+08 0.024190954 0.076671008 -36.687180 49.821929 6759.1482 1.1238381e+08 0.024863508 0.075855707 -36.787262 49.702783 6761.2736 1.1246181e+08 0.025754306 0.077990826 -36.885090 49.583637 6763.3990 1.0749702e+08 0.030068617 0.077652810 -36.980407 49.464492 6765.5244 1.0231940e+08 0.031752962 0.079626918 -37.077509 49.345347 6767.6498 94024056. 0.029437138 0.081248195 -37.177591 49.226201 6769.7752 90671241. 0.024400636 0.086334389 -37.276355 49.107056 6771.9006 89961085. 0.020290581 0.091489426 -37.371671 48.987911 6774.0260 87452961. 0.016118785 0.096644462 -37.466988 48.867916 6776.1514 84327754. 0.011900477 0.10179950 -37.562305 48.744006 6778.2768 79514174. 0.0075110093 0.10695454 -37.658447 48.618888 6780.4022 73597926. 0.0028996594 0.11210957 -37.764092 48.479881 6782.5276 66589493. -0.0020940980 0.11726461 -37.865488 48.346464 6784.6530 61446268. -0.0073196343 0.12241965 -37.956038 48.227318 6786.7784 60062027. -0.012579385 0.12757468 -38.046588 48.107300 6788.9038 61879706. -0.018193849 0.13272972 -38.137140 47.983387 6791.0292 60599906. -0.027499592 0.13788475 -38.228973 47.858193 6793.1546 57683561. -0.066240240 0.14303979 -38.334618 47.719187 6795.2800 52993553. -0.042109092 0.14819483 -38.435938 47.585869 6797.4054 50048144. 0.023714142 0.15334986 -38.526488 47.466724