# # 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 = 66.220625 km # Date (UTC) = 2012-01-19T09:41:46.600 # Date (julian) = 2455945.90401157 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6511.5835 6.4094890e+10 0.10369623 0.035776171 104.03507 47.548777 6514.0773 5.5058722e+10 0.11528857 0.036528184 104.15809 47.397793 6516.5712 4.8252101e+10 0.12723040 0.037280198 104.28112 47.246811 6519.0650 4.2775317e+10 0.13950572 0.038032211 104.40213 47.095828 6521.5589 3.8142984e+10 0.15206611 0.038784225 104.51957 46.944845 6524.0527 3.3930684e+10 0.15886401 0.039445683 104.65189 46.779501 6526.5466 3.0179555e+10 0.16394768 0.040241084 104.79444 46.604299 6529.0404 2.6908058e+10 0.16757936 0.042300142 104.91187 46.453315 6531.5343 2.4260024e+10 0.17101468 0.046006288 105.02790 46.302330 6534.0281 2.2088600e+10 0.17280886 0.047952418 105.13974 46.151347 6536.5219 2.0069415e+10 0.17308102 0.048257503 105.25416 46.000363 6539.0158 1.8275676e+10 0.17347447 0.049662752 105.37160 45.849379 6541.5096 1.6696739e+10 0.17310585 0.051161254 105.48526 45.698395 6544.0035 1.5325332e+10 0.17190283 0.051647185 105.59710 45.547411 6546.4973 1.4134866e+10 0.17092516 0.052873762 105.70894 45.396427 6548.9912 1.3088363e+10 0.16926604 0.053963651 105.82078 45.245443 6551.4850 1.2157913e+10 0.16764074 0.055406009 105.93262 45.094461 6553.9789 1.1191783e+10 0.16443021 0.054842990 106.04820 44.935723 6556.4727 1.0235555e+10 0.16093950 0.053943624 106.17215 44.759570 6558.9666 9.3126055e+09 0.15692243 0.052415650 106.28672 44.602932 6561.4604 8.5072117e+09 0.15323066 0.051145786 106.39856 44.451949 6563.9543 7.8737607e+09 0.14981698 0.048824473 106.50488 44.300964 6566.4481 7.3186074e+09 0.14745932 0.046929373 106.61001 44.149980 6568.9420 6.8273897e+09 0.14524001 0.044905751 106.71067 43.998996 6571.4358 6.3777652e+09 0.14364744 0.044384240 106.81362 43.848013 6573.9297 5.9744549e+09 0.14115257 0.042911431 106.91987 43.697029 6576.4235 5.6039604e+09 0.13879188 0.040883895 107.02264 43.546045 6578.9174 5.2552276e+09 0.13573872 0.037200957 107.12329 43.395060 6581.4112 4.9274464e+09 0.13322532 0.035472082 107.22860 43.244098 6583.9051 4.6062310e+09 0.13082809 0.034563554 107.33457 43.093139 6586.3989 4.3080534e+09 0.12853418 0.033166139 107.43523 42.942157 6588.8928 4.0216131e+09 0.12635458 0.033081783 107.53445 42.791174 6591.3866 3.7575716e+09 0.12343816 0.028765643 107.62951 42.640190 6593.8805 3.5288373e+09 0.12054547 0.026283642 107.72130 42.498048 6596.3743 3.3399486e+09 0.11706734 0.025725572 107.80939 42.365920 6598.8682 3.1842646e+09 0.11423229 0.024992667 107.90044 42.223391 6601.3620 3.0318455e+09 0.11336811 0.027216184 107.99550 42.066814 6603.8559 2.8764552e+09 0.11109380 0.026156598 108.09413 41.913801 6606.3497 2.7110374e+09 0.10973970 0.026875519 108.19479 41.762820 6608.8436 2.5557166e+09 0.10579679 0.023710067 108.29068 41.611858 6611.3374 2.4061303e+09 0.10192226 0.024743280 108.38539 41.460898 6613.8313 2.2618329e+09 0.10038780 0.023878586 108.47487 41.309914 6616.3251 2.1329974e+09 0.098752232 0.023333327 108.56586 41.158930 6618.8190 2.0066079e+09 0.098342228 0.024389216 108.66092 41.007946 6621.3128 1.8950481e+09 0.097801902 0.024985761 108.75599 40.856962 6623.8067 1.7935265e+09 0.096183159 0.024790684 108.85105 40.705978 6626.3005 1.6999319e+09 0.094989347 0.026208016 108.94222 40.554994 6628.7944 1.6178284e+09 0.093516167 0.026025616 109.03170 40.404010 6631.2882 1.5314063e+09 0.091884499 0.025960043 109.12117 40.253026 6633.7821 1.4424974e+09 0.090517242 0.026288793 109.21064 40.102043 6636.2759 1.3602980e+09 0.089042879 0.026442604 109.30011 39.951059 6638.7698 1.2771317e+09 0.088018993 0.025638106 109.38958 39.800075 6641.2636 1.2056255e+09 0.088693011 0.025149196 109.47905 39.649093 6643.7575 1.1436661e+09 0.087882362 0.025306986 109.55981 39.508347 6646.2513 1.0897512e+09 0.086691646 0.026050234 109.63320 39.376239 6648.7452 1.0457098e+09 0.085271149 0.027463097 109.71461 39.234720 6651.2390 1.0005060e+09 0.084624152 0.026667331 109.80408 39.083736 6653.7329 9.5045048e+08 0.083881763 0.027899832 109.88958 38.932752 6656.2267 8.9590490e+08 0.081842877 0.028222397 109.97347 38.781768 6658.7206 8.4664723e+08 0.079940101 0.031339000 110.05734 38.630785 6661.2144 8.0070204e+08 0.078226088 0.032644151 110.14122 38.479801 6663.7083 7.6144045e+08 0.076497351 0.032286938 110.22510 38.328816 6666.2021 7.2307737e+08 0.076187815 0.026947978 110.30898 38.177831 6668.6960 6.8789082e+08 0.074958335 0.028086643 110.39286 38.026847 6671.1898 6.5699564e+08 0.074921832 0.026868053 110.47674 37.875864 6673.6837 6.2338861e+08 0.074462556 0.028481668 110.56062 37.724880 6676.1775 5.9165671e+08 0.072258208 0.031828122 110.64020 37.573896 6678.6713 5.5868955e+08 0.071421837 0.030487587 110.71849 37.422912 6681.1652 5.3018631e+08 0.072563934 0.029784096 110.80226 37.271931 6683.6590 5.0805542e+08 0.073191624 0.032154422 110.88318 37.124581 6686.1529 4.8890090e+08 0.072610113 0.033850042 110.95168 36.992472 6688.6467 4.7265059e+08 0.069585092 0.033934481 111.02164 36.858388 6691.1406 4.5811144e+08 0.068222459 0.032968092 111.09993 36.712995 6693.6344 4.3740470e+08 0.067239653 0.031386435 111.17821 36.565588 6696.1283 4.1520996e+08 0.067017374 0.029729089 111.25650 36.414604 6698.6221 3.9418040e+08 0.065924680 0.031071778 111.33479 36.263621 6701.1160 3.7669305e+08 0.063926169 0.031579638 111.41308 36.112640 6703.6098 3.6189979e+08 0.063782262 0.035201249 111.49136 35.961656 6706.1037 3.4565807e+08 0.063827252 0.038626867 111.56965 35.810673 6708.5975 3.2957087e+08 0.063326063 0.040694276 111.64794 35.659688 6711.0914 3.1693167e+08 0.061473916 0.040796207 111.72507 35.508703 6713.5852 3.0522140e+08 0.059037535 0.045803299 111.79776 35.357719 6716.0791 2.9499813e+08 0.056902152 0.048517846 111.87046 35.206736 6718.5729 2.8272063e+08 0.054299367 0.050704717 111.94316 35.055752 6721.0668 2.6955360e+08 0.054256757 0.050324021 112.01938 34.908296 6723.5606 2.5574925e+08 0.052757514 0.049681619 112.09767 34.762905 6726.0545 2.4443895e+08 0.048583429 0.040951859 112.17124 34.612802 6728.5483 2.3411162e+08 0.047987378 0.040405265 112.24394 34.461819 6731.0422 2.2315047e+08 0.046318084 0.041833972 112.31664 34.310835 6733.5360 2.1624761e+08 0.045058724 0.046834568 112.38933 34.159851 6736.0299 2.0241165e+08 0.046646122 0.050467964 112.46203 34.008866 6738.5237 1.9412004e+08 0.048056577 0.060204454 112.53472 33.860552 6741.0176 1.8790698e+08 0.047162486 0.065808821 112.60742 33.715159 6743.5114 1.7821958e+08 0.042744197 0.074497506 112.67626 33.565914 6746.0053 1.7401676e+08 0.040675569 0.078925948 112.74336 33.414932 6748.4991 1.6602783e+08 0.036712074 0.069642809 112.81551 33.263949 6750.9930 1.6034654e+08 0.033939265 0.073699673 112.88757 33.113596 6753.4868 1.5628626e+08 0.030970677 0.074552736 112.95467 32.968203 6755.9807 1.5047540e+08 0.028413614 0.074175383 113.02359 32.820995 6758.4745 1.4367548e+08 0.028067652 0.074708759 113.09629 32.670010 6760.9684 1.3752827e+08 0.028622042 0.077907908 113.16599 32.519027 6763.4622 1.2962385e+08 0.034508732 0.077845462 113.23309 32.368045 6765.9561 1.2454812e+08 0.036890207 0.079705727 113.30856 32.203115 6768.4499 1.2243804e+08 0.033036061 0.082474933 113.38445 32.037499 6770.9438 1.1692395e+08 0.028205337 0.089168749 113.45155 31.886515 6773.4376 1.1335430e+08 0.023741615 0.095217429 113.51865 31.735531 6775.9315 1.0486842e+08 0.019339558 0.10126611 113.58576 31.584549 6778.4253 97560476. 0.014956386 0.10731479 113.65286 31.437137 6780.9192 93465618. 0.010576211 0.11336347 113.71997 31.291745 6783.4130 90002101. 0.0062215436 0.11941215 113.78707 31.141597 6785.9069 87986944. 0.0018675091 0.12546083 113.85382 30.990960 6788.4007 85260501. -0.0024771212 0.13150951 113.91534 30.845568 6790.8946 82240105. -0.0068174425 0.13755819 113.98144 30.691761 6793.3884 80532811. -0.011168596 0.14360687 114.05972 30.515643 6795.8823 78781162. -0.015516111 0.14965555 114.12971 30.362288 6798.3761 76901019. -0.019860733 0.15570423 114.19681 30.216896 6800.8700 75950462. -0.024213178 0.16175292 114.25859 30.066179 6803.3638 74684981. -0.028560081 0.16780160 114.32179 29.912133 6805.8577 71831828. -0.032889561 0.17385028 114.39355 29.742503 6808.3515 68653126. -0.037214761 0.17989896 114.45885 29.584649 6810.8454 66139073. -0.041543774 0.18594764 114.52036 29.433665 6813.3392 66020456. -0.045890208 0.19199632 114.58659 29.287397 6815.8331 68115303. -0.050251223 0.19804500 114.65395 29.140314 6818.3269 66485797. -0.054584405 0.20409368 114.72571 28.964161 6820.8207 63337557. -0.058906199 0.21014236 114.79213 28.804073 6823.3146 60133036. -0.063226728 0.21619104 114.85364 28.658682 6825.8084 58334756. -0.067555953 0.22223972 114.92268 28.495502 6828.3023 58820870. -0.071896334 0.22828840 114.99125 28.329625 6830.7961 57193366. -0.076222600 0.23433708 115.04717 28.178640 6833.2900 57481527. -0.080548314 0.24038576 115.10964 28.019956 6835.7838 56693580. -0.084857329 0.24643444 115.18140 27.850328 6838.2777 56802707. -0.089157976 0.25248312 115.24414 27.702032 6840.7715 56846141. -0.093455689 0.25853180 115.30600 27.553817 6843.2654 54285340. -0.097752114 0.26458048 115.37122 27.377699 6845.7592 51318135. -0.10204986 0.27062916 115.44011 27.205208 6848.2531 49580570. -0.10635559 0.27667785 115.51146 27.036213 6850.7469 48465092. -0.11066814 0.28272653 115.56738 26.890820 6853.2408 47459636. -0.11498780 0.28877521 115.62707 26.739664 6855.7346 49328029. -0.11931391 0.29482389 115.69883 26.570036 6858.2285 47923871. -0.12365719 0.30087257 115.76600 26.395807 6860.7223 47644007. -0.12801367 0.30692125 115.82963 26.224954 6863.2162 45333826. -0.13240503 0.31296993 115.88555 26.079562 6865.7100 42636803. -0.13684661 0.31901861 115.94505 25.924864 6868.2039 40852569. -0.14134643 0.32506729 116.01029 25.755235 6870.6977 39814742. -0.14594352 0.33111597 116.07554 25.585607 6873.1916 39756309. -0.15069211 0.33716465 116.14078 25.415988 6875.6854 37491424. -0.15621661 0.34321333 116.20600 25.246392 6878.1793 36176985. -0.16692594 0.34926201 116.27124 25.076772 6880.6731 35150942. -0.16644574 0.35531069 116.33648 24.905496 6883.1670 36707646. -0.15955334 0.36135937 116.40172 24.729343