# # 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 = 52.676342 km # Date (UTC) = 2012-02-03T10:08:05.542 # Date (julian) = 2455960.92228636 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6506.4731 1.4307590e+11 0.079777097 0.034235161 81.691064 65.480876 6508.5816 1.1654704e+11 0.089187959 0.034870964 82.258280 65.224026 6510.6901 9.6746634e+10 0.098717712 0.035506767 82.809850 64.959270 6512.7985 8.2224363e+10 0.10850455 0.036142569 83.292166 64.725877 6514.9070 7.1830057e+10 0.11867369 0.036778372 83.730476 64.509761 6517.0155 6.4019082e+10 0.12922192 0.037414175 84.256084 64.241015 6519.1239 5.7462066e+10 0.14008092 0.038049977 84.712173 64.000168 6521.2324 5.1041494e+10 0.15103423 0.038685780 85.121023 63.782763 6523.3409 4.5566096e+10 0.15842834 0.039263593 85.575557 63.530244 6525.4493 4.0645181e+10 0.16361569 0.039730934 85.961041 63.314510 6527.5578 3.6238299e+10 0.16815153 0.041121434 86.409014 63.054061 6529.6663 3.2971330e+10 0.17182477 0.043297075 86.764716 62.847192 6531.7747 2.9800748e+10 0.17470218 0.046356301 87.112153 62.640384 6533.8832 2.6955800e+10 0.17611390 0.047894917 87.544053 62.369135 6535.9917 2.4318313e+10 0.17573632 0.047794119 87.894719 62.154195 6538.1001 2.2079839e+10 0.17713727 0.049205437 88.222542 61.941640 6540.2086 2.0389817e+10 0.17713193 0.050952647 88.545212 61.730507 6542.3171 1.8624879e+10 0.17506725 0.051122612 88.897157 61.501896 6544.4255 1.6895520e+10 0.17306245 0.051989544 89.282014 61.241287 6546.5340 1.5295981e+10 0.17073225 0.052903918 89.588106 61.026198 6548.6425 1.3949273e+10 0.16854723 0.053859507 89.894275 60.811052 6550.7509 1.2920694e+10 0.16665026 0.055173386 90.192502 60.595970 6552.8594 1.2034635e+10 0.16504583 0.055370457 90.490371 60.380840 6554.9679 1.1200446e+10 0.16309564 0.054852690 90.783871 60.161298 6557.0763 1.0426872e+10 0.16068463 0.053818263 91.070792 59.940571 6559.1848 9.6434703e+09 0.15790856 0.052366323 91.352057 59.725486 6561.2933 8.9205031e+09 0.15521463 0.051228166 91.633403 59.510343 6563.4017 8.3429178e+09 0.15264169 0.049463656 91.857742 59.328213 6565.5102 7.8600849e+09 0.15019191 0.047739060 92.097694 59.135149 6567.6187 7.4134483e+09 0.14817505 0.046094090 92.369210 58.918478 6569.7271 6.9017929e+09 0.14637420 0.044899750 92.633924 58.695125 6571.8356 6.3553034e+09 0.14465221 0.044275056 92.890628 58.471707 6573.9441 5.8587224e+09 0.14219715 0.042899890 93.147149 58.254649 6576.0525 5.5026412e+09 0.13973837 0.041310926 93.374901 58.059926 6578.1610 5.1729681e+09 0.13709686 0.038395375 93.582165 57.879051 6580.2695 4.8715219e+09 0.13425763 0.036271725 93.830411 57.655632 6582.3779 4.6050281e+09 0.13149863 0.035190948 94.031312 57.469815 6584.4864 4.3399359e+09 0.12869512 0.034250549 94.239058 57.276395 6586.5949 4.1085105e+09 0.12587189 0.033163606 94.479022 57.052978 6588.7033 3.8790818e+09 0.12313477 0.033145049 94.718993 56.829558 6590.8118 3.6743579e+09 0.11992950 0.029551984 94.909077 56.646960 6592.9203 3.4809462e+09 0.11734955 0.027179662 95.109679 56.450320 6595.0287 3.2947117e+09 0.11492303 0.025626551 95.325755 56.234246 6597.1372 3.1129373e+09 0.11265515 0.025679430 95.511099 56.048903 6599.2457 2.9749591e+09 0.11112216 0.024944506 95.687384 55.868103 6601.3541 2.8547288e+09 0.11105614 0.027212469 95.868238 55.681764 6603.4626 2.7203431e+09 0.10993055 0.026389412 96.091655 55.458345 6605.5711 2.5761231e+09 0.10951337 0.027144129 96.259304 55.277951 6607.6795 2.4135660e+09 0.10794023 0.024365158 96.447204 55.075319 6609.7880 2.2743250e+09 0.10519610 0.023940007 96.650229 54.856554 6611.8965 2.1397768e+09 0.10293344 0.024386770 96.815716 54.677829 6614.0049 2.0247998e+09 0.10204174 0.023937087 96.981173 54.494287 6616.1134 1.9518083e+09 0.10040478 0.023300098 97.145162 54.310442 6618.2219 1.8761074e+09 0.099671060 0.023938339 97.304027 54.131720 6620.3303 1.7962166e+09 0.098806349 0.024873650 97.491123 53.915353 6622.4388 1.7062616e+09 0.097396546 0.024641196 97.666428 53.710277 6624.5473 1.6005020e+09 0.095767618 0.025155265 97.818641 53.531594 6626.6557 1.5096670e+09 0.094002662 0.025755424 97.977446 53.346310 6628.7642 1.4275307e+09 0.092604113 0.026013373 98.133133 53.164146 6630.8727 1.3613562e+09 0.090742134 0.025930452 98.285382 52.985422 6632.9811 1.3043839e+09 0.089153122 0.026149992 98.431177 52.800322 6635.0896 1.2526480e+09 0.087337966 0.026413226 98.576786 52.615002 6637.1981 1.1989224e+09 0.085599297 0.026064398 98.722415 52.429657 6639.3065 1.1405421e+09 0.084691217 0.025518508 98.902557 52.208224 6641.4150 1.0835298e+09 0.085265711 0.025149710 99.057649 52.012989 6643.5235 1.0264885e+09 0.084799457 0.025271658 99.201740 51.827677 6645.6319 9.7549667e+08 0.084064030 0.025747729 99.340747 51.642334 6647.7404 9.2874714e+08 0.083259412 0.026827612 99.479755 51.461740 6649.8489 8.8778058e+08 0.082601662 0.026463544 99.618763 51.281646 6651.9574 8.5175680e+08 0.082172223 0.027217836 99.757775 51.096303 6654.0658 8.1858759e+08 0.081567474 0.028008187 99.892152 50.910989 6656.1743 7.8714443e+08 0.079863428 0.028176386 100.02451 50.725680 6658.2828 7.5649180e+08 0.078474696 0.030562544 100.15690 50.540337 6660.3912 7.2503093e+08 0.077134730 0.031981596 100.28929 50.354993 6662.4997 6.9213829e+08 0.075846074 0.032763918 100.42059 50.170741 6664.6082 6.6093980e+08 0.074954496 0.029980883 100.54633 49.992057 6666.7166 6.3802963e+08 0.074694131 0.027048237 100.66200 49.829193 6668.8251 6.2068499e+08 0.073441410 0.028200917 100.77233 49.674747 6670.9336 6.0096895e+08 0.073374138 0.026896132 100.89562 49.494352 6673.0420 5.7810502e+08 0.072936694 0.027522063 101.01921 49.309007 6675.1505 5.5185205e+08 0.071283467 0.030086597 101.13836 49.123664 6677.2590 5.2923951e+08 0.069283973 0.031990086 101.26290 48.938357 6679.3674 5.0887551e+08 0.068855526 0.029964150 101.38661 48.753044 6681.4759 4.9197287e+08 0.069662819 0.030022453 101.50576 48.567698 6683.5844 4.7627932e+08 0.069933896 0.032044962 101.62491 48.382355 6685.6928 4.5647627e+08 0.069517141 0.033436630 101.74406 48.197024 6687.8013 4.3786291e+08 0.067397168 0.033896012 101.86318 48.011723 6689.9098 4.1897519e+08 0.065508606 0.033197096 101.96266 47.854603 6692.0182 4.0341577e+08 0.064635564 0.032744165 102.05643 47.705672 6694.1267 3.8781077e+08 0.063913592 0.031083461 102.17461 47.521713 6696.2352 3.7354590e+08 0.063927668 0.029773489 102.29078 47.336368 6698.3436 3.6263986e+08 0.063128650 0.030689484 102.40331 47.151025 6700.4521 3.5391488e+08 0.061591362 0.031003049 102.50959 46.965724 6702.5606 3.4505354e+08 0.060744303 0.033324340 102.61832 46.780406 6704.6690 3.3050103e+08 0.061160547 0.036506081 102.73085 46.595063 6706.7775 3.1731766e+08 0.061045547 0.039799573 102.82108 46.438104 6708.8860 3.0663544e+08 0.060648541 0.041008360 102.91191 46.280391 6710.9944 2.9715949e+08 0.059151935 0.040691142 103.02441 46.095090 6713.1029 2.8984027e+08 0.057312450 0.044058777 103.13299 45.909764 6715.2114 2.7785895e+08 0.055539975 0.047594765 103.23891 45.724421 6717.3198 2.6457903e+08 0.053696258 0.049854485 103.34481 45.539075 6719.4283 2.5428788e+08 0.052011679 0.050962925 103.43744 45.371446 6721.5368 2.4072205e+08 0.052507525 0.050465629 103.52018 45.217000 6723.6452 2.2929887e+08 0.051088896 0.049728801 103.62052 45.039092 6725.7537 2.1522707e+08 0.047351053 0.041105220 103.72476 44.853781 6727.8622 2.0105784e+08 0.046723621 0.039811734 103.82405 44.668436 6729.9706 1.9389652e+08 0.045710234 0.040398476 103.91112 44.505914 6732.0791 1.8409206e+08 0.044346180 0.043754771 103.99386 44.351468 6734.1876 1.7514334e+08 0.043853491 0.049342314 104.09192 44.168417 6736.2960 1.6613904e+08 0.045910541 0.051474181 104.19120 43.983091 6738.4045 1.5598690e+08 0.047356333 0.059548056 104.29047 43.797789 6740.5130 1.5270064e+08 0.047021188 0.064926680 104.38378 43.618433 6742.6214 1.4796164e+08 0.044407757 0.070124996 104.47037 43.449257 6744.7299 1.4219953e+08 0.040975294 0.078357973 104.54760 43.294810 6746.8384 1.3588979e+08 0.037220738 0.069240294 104.63763 43.122433 6748.9468 1.2825682e+08 0.037108801 0.071998240 104.73646 42.937092 6751.0553 1.2304073e+08 0.034468768 0.073735054 104.82911 42.751791 6753.1638 1.1668188e+08 0.032159691 0.073507282 104.91314 42.583725 6755.2722 1.1277078e+08 0.030546329 0.074485987 104.99036 42.429279 6757.3807 1.0790633e+08 0.028904232 0.075584718 105.07417 42.251792 6759.4892 1.0592580e+08 0.030031728 0.075938000 105.16177 42.066458 6761.5976 1.0244634e+08 0.032611503 0.078017602 105.25442 41.881159 6763.7061 96889606. 0.036946545 0.078588227 105.33191 41.718194 6765.8146 93477125. 0.039137546 0.079679897 105.40362 41.563745 6767.9230 87838031. 0.037045342 0.080942200 105.49443 41.381152 6770.0315 88536205. 0.032574116 0.086956121 105.58445 41.195809 6772.1400 85248990. 0.029046229 0.092070080 105.67050 41.010466 6774.2484 80558217. 0.025618509 0.097184040 105.74379 40.852606 6776.3569 77195510. 0.022129309 0.10229800 105.81659 40.696299 6778.4654 70397101. 0.018945804 0.10741196 105.90263 40.517617 6780.5738 68359018. 0.015440198 0.11252592 105.98493 40.335167 6782.6823 67765656. 0.011831667 0.11763988 106.06394 40.151519 6784.7908 68157161. 0.0081515556 0.12275384 106.13565 39.997072 6786.8992 67616102. 0.0045678381 0.12786780 106.20922 39.835159 6789.0077 65541251. 0.0011467618 0.13298176 106.28863 39.649858 6791.1162 61539632. -0.0020246887 0.13809572 106.37290 39.464526 6793.2246 58508803. -0.0052068751 0.14320968 106.45749 39.279183 6795.3331 58295121. -0.0086559152 0.14832364 106.53692 39.093840 6797.4416 57040587. -0.011881163 0.15343760 106.60696 38.930417 6799.5500 56186975. -0.015024683 0.15855156 106.67316 38.775969 6801.6585 55810359. -0.018047664 0.16366552 106.75120 38.599795 6803.7670 52460051. -0.020204245 0.16877948 106.83063 38.418544 6805.8754 49794776. -0.021759708 0.17389344 106.91006 38.233197 6807.9839 47347631. -0.021946507 0.17900740 106.97308 38.074883 6810.0924 46910614. -0.019878642 0.18412136 107.03492 37.918524 6812.2008 45177275. 0.011827295 0.18923532 107.11435 37.733180 6814.3093 46511672. -0.022204959 0.19434927 107.19013 37.551509 6816.4178 47105293. -0.084663566 0.19946323 107.26319 37.372560