# # 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 = 46.856993 km # Date (UTC) = 2013-12-25T10:25:19.355 # Date (julian) = 2456651.93425179 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6507.7215 4.8385831e+10 0.075814983 0.034611613 -38.119340 48.000660 6509.7384 4.5380800e+10 0.084898672 0.035219793 -38.203757 47.916245 6511.7552 4.2703771e+10 0.094298076 0.035827973 -38.288173 47.831830 6513.7721 4.1178253e+10 0.10436699 0.036436153 -38.376030 47.743973 6515.7890 3.9099558e+10 0.11450756 0.037044333 -38.463963 47.656040 6517.8058 3.7017150e+10 0.12488467 0.037652513 -38.552848 47.567155 6519.8227 3.4715435e+10 0.13538438 0.038260693 -38.647816 47.472185 6521.8396 3.2319843e+10 0.14603076 0.038868873 -38.742784 47.377215 6523.8564 2.9989413e+10 0.15147265 0.039391377 -38.831336 47.286525 6525.8733 2.7628696e+10 0.15564636 0.039682547 -38.915752 47.198591 6527.8902 2.5609452e+10 0.16066252 0.041362739 -39.000169 47.110658 6529.9070 2.3688837e+10 0.16455952 0.043680595 -39.084592 47.022716 6531.9239 2.2048744e+10 0.16740010 0.046573410 -39.169018 46.934772 6533.9408 2.0817315e+10 0.16886609 0.047919379 -39.253444 46.846827 6535.9576 1.9469863e+10 0.16896651 0.047808887 -39.334618 46.762137 6537.9745 1.8281287e+10 0.17089659 0.049144650 -39.415517 46.677721 6539.9913 1.7150078e+10 0.17178861 0.050843625 -39.496416 46.593026 6542.0082 1.6117428e+10 0.17051356 0.051005355 -39.577315 46.505093 6544.0251 1.5242996e+10 0.16915748 0.051664687 -39.658213 46.417160 6546.0419 1.4365660e+10 0.16755629 0.052499034 -39.739111 46.329227 6548.0588 1.3502848e+10 0.16665226 0.053685206 -39.820009 46.241294 6550.0757 1.2669445e+10 0.16542606 0.055004305 -39.900907 46.153361 6552.0925 1.1834883e+10 0.16386604 0.055563477 -39.985787 46.062656 6554.1094 1.0939653e+10 0.16174515 0.054834676 -40.076813 45.967674 6556.1263 1.0060786e+10 0.16001107 0.053994563 -40.167839 45.872691 6558.1431 9.3250197e+09 0.15865521 0.053117348 -40.247043 45.783816 6560.1600 8.7180311e+09 0.15677870 0.052130062 -40.324424 45.695883 6562.1768 8.2538151e+09 0.15457632 0.050711625 -40.401806 45.607950 6564.1937 7.8335410e+09 0.15214231 0.048683807 -40.479186 45.520017 6566.2106 7.4066432e+09 0.15039955 0.047063761 -40.556566 45.432084 6568.2274 7.0067713e+09 0.14922640 0.045562590 -40.633947 45.344785 6570.2443 6.6063986e+09 0.14813393 0.044816310 -40.711328 45.260369 6572.2612 6.2297832e+09 0.14669755 0.044080591 -40.788709 45.175952 6574.2780 5.8776124e+09 0.14461696 0.042721467 -40.866094 45.090347 6576.2949 5.5468256e+09 0.14261845 0.041031961 -40.943486 45.002402 6578.3118 5.2510056e+09 0.14030201 0.038157307 -41.020878 44.914457 6580.3286 4.9772980e+09 0.13792416 0.036217056 -41.096525 44.826518 6582.3455 4.7394025e+09 0.13554491 0.035199778 -41.170388 44.738585 6584.3624 4.5147165e+09 0.13296221 0.034318124 -41.244252 44.650652 6586.3792 4.2719836e+09 0.13040425 0.033166394 -41.324130 44.558136 6588.3961 4.0062957e+09 0.12832611 0.033247658 -41.407228 44.463168 6590.4129 3.7278211e+09 0.12597322 0.030293925 -41.489179 44.369074 6592.4298 3.4820589e+09 0.12378529 0.027656051 -41.563042 44.281141 6594.4467 3.2817310e+09 0.12176168 0.025927322 -41.636905 44.193208 6596.4635 3.1153377e+09 0.11941995 0.025725166 -41.710769 44.105275 6598.4804 2.9599293e+09 0.11780541 0.025177805 -41.784634 44.017342 6600.4973 2.8152593e+09 0.11756516 0.026012160 -41.858499 43.929409 6602.5141 2.6847198e+09 0.11683768 0.027077896 -41.930826 43.843011 6604.5310 2.5674908e+09 0.11569685 0.026386563 -42.001180 43.758584 6606.5479 2.4587907e+09 0.11482090 0.026519481 -42.071535 43.674157 6608.5647 2.3498010e+09 0.11213012 0.023717440 -42.147121 43.581096 6610.5816 2.2310566e+09 0.10925516 0.024558670 -42.226263 43.482170 6612.5984 2.1081577e+09 0.10769331 0.023873613 -42.304804 43.383994 6614.6153 1.9851970e+09 0.10656918 0.023516566 -42.375150 43.296061 6616.6322 1.8783505e+09 0.10502134 0.023381519 -42.445497 43.208128 6618.6490 1.7908981e+09 0.10410583 0.024260899 -42.515843 43.120195 6620.6659 1.7142140e+09 0.10303295 0.024981785 -42.586190 43.032262 6622.6828 1.6385355e+09 0.10134300 0.024576262 -42.656537 42.944329 6624.6996 1.5611682e+09 0.099466429 0.025236820 -42.726887 42.857736 6626.7165 1.4945285e+09 0.097258917 0.025678019 -42.797243 42.773310 6628.7334 1.4332369e+09 0.095557180 0.026000847 -42.867599 42.688884 6630.7502 1.3772551e+09 0.093424460 0.025930151 -42.940559 42.596636 6632.7671 1.3074282e+09 0.091726853 0.026124325 -43.015742 42.497710 6634.7840 1.2319654e+09 0.090232308 0.026384028 -43.090809 42.398937 6636.8008 1.1680541e+09 0.088844636 0.026238763 -43.157651 42.310986 6638.8177 1.1120231e+09 0.088033023 0.025636018 -43.224480 42.223053 6640.8345 1.0689062e+09 0.088692864 0.025168544 -43.291309 42.135120 6642.8514 1.0254575e+09 0.088489694 0.025186538 -43.358139 42.047187 6644.8683 9.8905708e+08 0.087562952 0.025437448 -43.424969 41.959254 6646.8851 9.5358861e+08 0.086430497 0.026378323 -43.494524 41.869025 6648.9020 9.0911720e+08 0.085340918 0.027568087 -43.569707 41.774055 6650.9189 8.5939470e+08 0.085096610 0.026465591 -43.644890 41.679086 6652.9357 8.1088018e+08 0.084846008 0.027507978 -43.713405 41.589729 6654.9526 7.7206207e+08 0.083734306 0.027630412 -43.780243 41.501785 6656.9695 7.3818846e+08 0.081857182 0.028874304 -43.847080 41.413840 6658.9863 7.0750601e+08 0.080300771 0.031810340 -43.910546 41.325907 6661.0032 6.7790426e+08 0.079000028 0.032536572 -43.973857 41.237974 6663.0200 6.5049211e+08 0.077800625 0.032477656 -44.038066 41.148796 6665.0369 6.1994579e+08 0.077129401 0.028486646 -44.109293 41.049869 6667.0538 5.8729115e+08 0.076659419 0.027123211 -44.180521 40.950942 6669.0706 5.5555812e+08 0.075420019 0.028283149 -44.247108 40.860521 6671.0875 5.3338601e+08 0.075377090 0.026866595 -44.310420 40.776104 6673.1044 5.1479165e+08 0.074790899 0.027615310 -44.373732 40.691688 6675.1212 4.9419130e+08 0.073067814 0.030030564 -44.442925 40.596490 6677.1381 4.6985230e+08 0.071009309 0.032161898 -44.514152 40.497564 6679.1550 4.4077228e+08 0.070565271 0.030139718 -44.583670 40.401012 6681.1718 4.2165228e+08 0.071598155 0.029789180 -44.646982 40.313079 6683.1887 4.0518738e+08 0.072235513 0.031465108 -44.710293 40.225146 6685.2056 3.8941002e+08 0.072158455 0.032921953 -44.775085 40.134585 6687.2224 3.7494824e+08 0.070531752 0.034218856 -44.842364 40.039601 6689.2393 3.5875360e+08 0.068175928 0.033800632 -44.909644 39.944618 6691.2561 3.4508232e+08 0.067423400 0.032940829 -44.973566 39.855601 6693.2730 3.3358339e+08 0.066691765 0.031510430 -45.036878 39.767668 6695.2899 3.1919423e+08 0.066364439 0.029806227 -45.100222 39.679645 6697.3067 3.0519685e+08 0.065862926 0.030130083 -45.167472 39.580775 6699.3236 2.9350096e+08 0.064597432 0.031291840 -45.234743 39.481849 6701.3405 2.8131539e+08 0.062940531 0.031909006 -45.298455 39.389828 6703.3573 2.7371669e+08 0.062836358 0.034569387 -45.358249 39.305412 6705.3742 2.6376120e+08 0.062895140 0.037333847 -45.418043 39.220996 6707.3911 2.5275861e+08 0.062505287 0.040130808 -45.480063 39.127397 6709.4079 2.4387849e+08 0.061650434 0.040873085 -45.543376 39.028471 6711.4248 2.3433892e+08 0.059770101 0.041175522 -45.607108 38.929544 6713.4416 2.2678155e+08 0.057695875 0.045283976 -45.674378 38.830618 6715.4585 2.1486767e+08 0.055851538 0.047847543 -45.741649 38.731692 6717.4754 2.0259138e+08 0.053788640 0.049844864 -45.804598 38.641154 6719.4922 1.9261689e+08 0.051917881 0.050902173 -45.864400 38.556728 6721.5091 1.8560758e+08 0.051966247 0.050457295 -45.924202 38.472302 6723.5260 1.8272854e+08 0.050222575 0.049662286 -45.986587 38.377206 6725.5428 1.7963367e+08 0.046053717 0.041236938 -46.049900 38.278280 6727.5597 1.7170057e+08 0.044801066 0.040214708 -46.113212 38.179354 6729.5766 1.6270851e+08 0.043804653 0.040661134 -46.176525 38.080428 6731.5934 1.5253007e+08 0.041936672 0.042931052 -46.239838 37.981502 6733.6103 1.4400836e+08 0.040651478 0.047237748 -46.303151 37.885272 6735.6272 1.3468921e+08 0.041393062 0.049959202 -46.366464 37.790302 6737.6440 1.3018432e+08 0.042421331 0.056187100 -46.428690 37.696418 6739.6609 1.2835698e+08 0.042257210 0.063635345 -46.484969 37.608485 6741.6777 1.2472246e+08 0.040206068 0.067691662 -46.541247 37.520552 6743.6946 1.2268864e+08 0.035721336 0.075733259 -46.599715 37.429196 6745.7115 1.1333823e+08 0.033631884 0.078865984 -46.663028 37.330270 6747.7283 1.0902959e+08 0.029022434 0.067110422 -46.726341 37.231344 6749.7452 1.0500646e+08 0.026737851 0.072073896 -46.786557 37.135511 6751.7621 98614260. 0.023457061 0.074033877 -46.845920 37.040528 6753.7789 94321470. 0.021637042 0.075498048 -46.906301 36.944530 6755.7958 89618391. 0.018957225 0.074256440 -46.969613 36.845604 6757.8127 83953532. 0.017369720 0.074273856 -47.032926 36.746678 6759.8295 82100897. 0.017735404 0.076020132 -47.093349 36.650641 6761.8464 80433997. 0.020498237 0.078038153 -47.152706 36.555671 6763.8632 77195862. 0.023221966 0.079066810 -47.212062 36.459897 6765.8801 75849489. 0.024543068 0.079691861 -47.271417 36.360970 6767.8970 67168078. 0.020444674 0.080971383 -47.330772 36.262044 6769.9138 66195106. 0.015300164 0.086670729 -47.390128 36.165794 6771.9307 64863610. 0.010438260 0.091562511 -47.449484 36.070826 6773.9476 61568451. 0.0043517327 0.096454293 -47.508840 35.975268 6775.9644 60449761. -0.0028159386 0.10134608 -47.568197 35.876342 6777.9813 55760767. -0.016166866 0.10623786 -47.627553 35.777416 6779.9982 56760325. -0.068091790 0.11112964 -47.686908 35.680949 6782.0150 55415936. -0.029591502 0.11602142 -47.746264 35.585979 6784.0319 51174076. 0.059963833 0.12091320 -47.805619 35.490634