# # 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 = 57.596257 km # Date (UTC) = 2014-01-11T09:33:53.061 # Date (julian) = 2456668.89853080 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6502.4944 6.2126549e+10 0.054342476 0.033035382 110.67214 38.431181 6504.5753 5.8153398e+10 0.063619394 0.033662884 110.74154 38.316863 6506.6563 5.3377922e+10 0.072994786 0.034290386 110.81680 38.195661 6508.7372 4.8736681e+10 0.082556508 0.034917888 110.89613 38.069676 6510.8181 4.4168025e+10 0.092280845 0.035545390 110.96920 37.950731 6512.8991 4.0292923e+10 0.10237306 0.036172892 111.03452 37.840496 6514.9800 3.7127435e+10 0.11292241 0.036800394 111.09984 37.730253 6517.0610 3.4473772e+10 0.12391881 0.037427895 111.16518 37.615937 6519.1419 3.2052233e+10 0.13526508 0.038055397 111.23051 37.501602 6521.2228 2.9614459e+10 0.14681241 0.038682899 111.30096 37.380875 6523.3038 2.7102968e+10 0.15478793 0.039254403 111.37562 37.254890 6525.3847 2.4683929e+10 0.16065106 0.039738308 111.44649 37.133637 6527.4657 2.2522331e+10 0.16573816 0.041054542 111.51182 37.019320 6529.5466 2.0737504e+10 0.16975557 0.043106462 111.57714 36.905004 6531.6275 1.9226542e+10 0.17319959 0.046142063 111.64247 36.794590 6533.7085 1.7863780e+10 0.17551488 0.047820667 111.70779 36.684355 6535.7894 1.6602804e+10 0.17582957 0.047881852 111.77311 36.574120 6537.8704 1.5452087e+10 0.17707306 0.049095559 111.83844 36.463885 6539.9513 1.4422421e+10 0.17711432 0.050795144 111.90353 36.353415 6542.0322 1.3534568e+10 0.17477612 0.051014476 111.96477 36.239098 6544.1132 1.2695342e+10 0.17244271 0.051736156 112.02601 36.124781 6546.1941 1.1803075e+10 0.17014852 0.052624250 112.09542 36.003366 6548.2751 1.0896429e+10 0.16862049 0.053749786 112.17007 35.877381 6550.3560 1.0038983e+10 0.16708642 0.055074497 112.23849 35.758722 6552.4369 9.3262789e+09 0.16544871 0.055476791 112.29973 35.648487 6554.5179 8.7260129e+09 0.16337480 0.054843248 112.36097 35.538252 6556.5988 8.1843693e+09 0.16127978 0.053925089 112.42221 35.428018 6558.6798 7.6759176e+09 0.15898393 0.052660073 112.48346 35.317783 6560.7607 7.2018688e+09 0.15648426 0.051588448 112.54470 35.205235 6562.8416 6.7727636e+09 0.15428084 0.050079061 112.60594 35.090918 6564.9226 6.3635740e+09 0.15214345 0.048353488 112.66670 34.977080 6567.0035 5.9906365e+09 0.15013426 0.046614219 112.72386 34.866845 6569.0845 5.6461961e+09 0.14810534 0.044857921 112.78102 34.756610 6571.1654 5.3330801e+09 0.14666113 0.044458104 112.84091 34.646364 6573.2463 5.0470598e+09 0.14481831 0.043459808 112.90216 34.536113 6575.3273 4.7833236e+09 0.14263754 0.042046353 112.96251 34.425865 6577.4082 4.5471996e+09 0.14009358 0.039579174 113.01967 34.315630 6579.4891 4.3273094e+09 0.13716657 0.036801591 113.07683 34.205395 6581.5701 4.0984710e+09 0.13455126 0.035423978 113.14386 34.079448 6583.6510 3.8565267e+09 0.13209400 0.034692145 113.21386 33.948797 6585.7320 3.6257881e+09 0.12973678 0.033385581 113.27581 33.830937 6587.8129 3.4169959e+09 0.12805022 0.033338479 113.33297 33.720702 6589.8938 3.2469176e+09 0.12615210 0.031272664 113.39013 33.610467 6591.9748 3.0940626e+09 0.12403719 0.028101976 113.44728 33.500232 6594.0557 2.9411167e+09 0.12207515 0.026141932 113.50444 33.389998 6596.1367 2.8046758e+09 0.11974231 0.025726653 113.56160 33.279763 6598.2176 2.6704937e+09 0.11826663 0.025303272 113.61877 33.169528 6600.2985 2.5523624e+09 0.11794752 0.025603632 113.67593 33.059293 6602.3795 2.4421213e+09 0.11745528 0.027192794 113.73308 32.949058 6604.4604 2.3409768e+09 0.11641703 0.026344662 113.79024 32.838823 6606.5414 2.2427452e+09 0.11581793 0.026531145 113.84740 32.728589 6608.6223 2.1474513e+09 0.11328083 0.023715918 113.90456 32.618354 6610.7032 2.0589772e+09 0.11047250 0.024674914 113.96017 32.508119 6612.7842 1.9793119e+09 0.10914808 0.023734838 114.01324 32.397884 6614.8651 1.9071427e+09 0.10797245 0.023344455 114.06632 32.287649 6616.9461 1.8236811e+09 0.10658731 0.023430784 114.13079 32.162757 6619.0270 1.7335508e+09 0.10591532 0.024532430 114.19612 32.036771 6621.1079 1.6397942e+09 0.10518827 0.025053668 114.25180 31.923190 6623.1889 1.5589730e+09 0.10366770 0.024561805 114.30487 31.812956 6625.2698 1.4937981e+09 0.10221469 0.025719586 114.35795 31.702715 6627.3508 1.4336442e+09 0.10006644 0.025452305 114.41103 31.592464 6629.4317 1.3752082e+09 0.098697021 0.026031052 114.46412 31.482213 6631.5126 1.3147196e+09 0.096850203 0.025982840 114.52083 31.371977 6633.5936 1.2549425e+09 0.095494273 0.026255887 114.57799 31.261743 6635.6745 1.2044863e+09 0.094179762 0.026500943 114.63335 31.151509 6637.7555 1.1580303e+09 0.093308431 0.025791409 114.68642 31.041274 6639.8364 1.1128290e+09 0.093236186 0.025329125 114.73950 30.931039 6641.9173 1.0694371e+09 0.093609156 0.025151415 114.79258 30.820804 6643.9983 1.0288253e+09 0.092747797 0.025343347 114.84565 30.710569 6646.0792 9.9128618e+08 0.091913887 0.025961155 114.90031 30.591808 6648.1602 9.4864794e+08 0.091094056 0.027071497 114.95630 30.465823 6650.2411 9.0240901e+08 0.090592387 0.026310432 115.01113 30.346109 6652.3220 8.5820354e+08 0.090230301 0.027339127 115.06421 30.235875 6654.4030 8.2152864e+08 0.089452492 0.027864552 115.11729 30.125641 6656.4839 7.9426606e+08 0.087621831 0.028448152 115.17036 30.015407 6658.5649 7.6518857e+08 0.086140392 0.031062870 115.22344 29.905172 6660.6458 7.3770049e+08 0.084766551 0.032212999 115.27447 29.794937 6662.7267 7.1081189e+08 0.083466389 0.032636527 115.32347 29.684702 6664.8077 6.8633428e+08 0.082585779 0.029250822 115.37267 29.574466 6666.8886 6.6476330e+08 0.082117231 0.027081754 115.42574 29.464231 6668.9696 6.4244761e+08 0.080728549 0.028328765 115.47882 29.353997 6671.0505 6.1823502e+08 0.080704170 0.026866068 115.53365 29.234298 6673.1314 5.8911843e+08 0.080206545 0.027655794 115.58964 29.108314 6675.2124 5.6352195e+08 0.078421575 0.030205140 115.64243 28.991408 6677.2933 5.3836712e+08 0.076453571 0.031941235 115.69142 28.885256 6679.3743 5.1599222e+08 0.076055270 0.029958501 115.74045 28.779063 6681.4552 5.0014608e+08 0.076920524 0.030006579 115.79352 28.668835 6683.5361 4.7969747e+08 0.077396234 0.031974297 115.84660 28.558601 6685.6171 4.6274094e+08 0.077078239 0.033356623 115.89740 28.448356 6687.6980 4.4394371e+08 0.075044427 0.033953609 115.94640 28.338104 6689.7790 4.2704727e+08 0.072961249 0.033314838 115.99617 28.226119 6691.8599 4.1690240e+08 0.071885504 0.032798384 116.05216 28.100134 6693.9408 4.0781217e+08 0.070841071 0.031281324 116.10816 27.974148 6696.0218 3.9964389e+08 0.070608302 0.029684833 116.15343 27.867343 6698.1027 3.8471031e+08 0.069733061 0.030358807 116.19834 27.761191 6700.1837 3.7468220e+08 0.068010961 0.030803941 116.24537 27.652926 6702.2646 3.6251207e+08 0.066526959 0.033088011 116.29436 27.542692 6704.3455 3.5002247e+08 0.066697802 0.036347229 116.34383 27.431381 6706.4265 3.3658873e+08 0.066422986 0.039188651 116.39982 27.305395 6708.5074 3.1741422e+08 0.065901953 0.040596135 116.45582 27.179410 6710.5884 3.0585578e+08 0.064299762 0.040611658 116.50533 27.071776 6712.6693 2.9701397e+08 0.062094984 0.043072615 116.55433 26.965624 6714.7502 2.8995559e+08 0.059863004 0.047359811 116.60443 26.850031 6716.8312 2.7686548e+08 0.057740822 0.049625603 116.65576 26.724045 6718.9121 2.6304377e+08 0.055227978 0.051232962 116.70495 26.604663 6720.9931 2.5171835e+08 0.055344245 0.050304704 116.74986 26.498511 6723.0740 2.4455009e+08 0.054008988 0.049410211 116.79477 26.392359 6725.1549 2.4262196e+08 0.049565386 0.041479241 116.84329 26.282600 6727.2359 2.3501557e+08 0.047912141 0.040646136 116.89228 26.172366 6729.3168 2.2440740e+08 0.047176926 0.040834264 116.94229 26.057319 6731.3978 2.1581369e+08 0.045240780 0.042541625 116.99361 25.936000 6733.4787 2.0707488e+08 0.043927898 0.046523265 117.04307 25.817907 6735.5596 2.0285743e+08 0.044596664 0.049887523 117.08798 25.707672 6737.6406 1.9857644e+08 0.045767330 0.056176122 117.13290 25.597437 6739.7215 1.9033587e+08 0.045617555 0.063709544 117.18321 25.477871 6741.8025 1.8365441e+08 0.043485556 0.068047329 117.23454 25.356552 6743.8834 1.7550466e+08 0.038694990 0.077006770 117.28423 25.242977 6745.9643 1.7275729e+08 0.037284392 0.078972283 117.33323 25.132743 6748.0453 1.6823214e+08 0.032963895 0.067255068 117.38280 25.019744 6750.1262 1.6320130e+08 0.030065338 0.072219641 117.43413 24.898426 6752.2071 1.5625619e+08 0.027082295 0.073894765 117.48496 24.776611 6754.2881 1.4876511e+08 0.025622770 0.075750187 117.53162 24.650626 6756.3690 1.4230144e+08 0.022884436 0.075116476 117.57828 24.524641 6758.4500 1.3582006e+08 0.022693680 0.074656842 117.62326 24.417758 6760.5309 1.3358489e+08 0.023086900 0.077073690 117.66817 24.311605 6762.6118 1.2987414e+08 0.027557427 0.077063883 117.71638 24.197659 6764.6928 1.2538415e+08 0.030063285 0.079516475 117.76771 24.076340 6766.7737 1.1941708e+08 0.030296052 0.081463935 117.81665 23.959131 6768.8547 1.1376465e+08 0.025825780 0.083931322 117.86156 23.848896 6770.9356 1.1487532e+08 0.022199542 0.089148961 117.90647 23.738661 6773.0165 1.1334839e+08 0.018603583 0.094196154 117.95300 23.618213 6775.0975 1.0966428e+08 0.014947787 0.099243348 117.99966 23.496894 6777.1784 1.0294904e+08 0.011166022 0.10429054 118.04995 23.375575 6779.2594 96474942. 0.0073923524 0.10933774 118.10128 23.254255 6781.3403 95581481. 0.0039360450 0.11438493 118.14964 23.132936 6783.4212 92614351. 0.00036675358 0.11943212 118.19630 23.011618 6785.5022 89922193. -0.0031896638 0.12447932 118.24210 22.895754 6787.5831 85798276. -0.0068446685 0.12952651 118.28701 22.785519 6789.6641 82875091. -0.010456241 0.13457370 118.33200 22.674810 6791.7450 84437640. -0.013842270 0.13962090 118.37866 22.553491 6793.8259 81839056. -0.017522446 0.14466809 118.42532 22.432172 6795.9069 77632423. -0.021379450 0.14971529 118.47618 22.310853 6797.9878 71304280. -0.025515386 0.15476248 118.52751 22.189534 6800.0688 67794123. -0.029635934 0.15980967 118.57530 22.068215 6802.1497 64536798. -0.033973689 0.16485687 118.62196 21.946896 6804.2306 61426239. -0.038670979 0.16990406 118.66862 21.825577 6806.3116 60217563. -0.043667207 0.17495126 118.71528 21.704257 6808.3925 57516574. -0.049796177 0.17999845 118.76194 21.582937 6810.4735 56183911. -0.057350698 0.18504564 118.80860 21.461618 6812.5544 50585379. -0.071558691 0.19009284 118.85527 21.340299 6814.6353 48485663. -0.12865401 0.19514003 118.90193 21.218981 6816.7163 47181736. -0.090978563 0.20018722 118.94859 21.096804 6818.7972 48244132. -0.0010141017 0.20523442 118.99525 20.970819