# # 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 = 48.105772 km # Date (UTC) = 2013-01-23T09:25:06.747 # Date (julian) = 2456315.89243920 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6506.4477 5.7852751e+10 0.075709339 0.034227493 108.27636 49.315306 6508.3722 5.4301110e+10 0.085273654 0.034807832 108.39216 49.177035 6510.2968 5.0302163e+10 0.094929735 0.035388172 108.50795 49.041095 6512.2213 4.6048281e+10 0.10464101 0.035968512 108.63316 48.890204 6514.1458 4.1646577e+10 0.11440019 0.036548852 108.76606 48.727109 6516.0704 3.7642584e+10 0.12435761 0.037129192 108.87914 48.583814 6517.9949 3.4174456e+10 0.13456688 0.037709531 108.98991 48.442840 6519.9195 3.1208112e+10 0.14501642 0.038289871 109.09610 48.306442 6521.8440 2.8491710e+10 0.15561949 0.038870211 109.20183 48.170502 6523.7685 2.6287342e+10 0.16138003 0.039369594 109.29760 48.048504 6525.6931 2.4662328e+10 0.16645762 0.039703115 109.39254 47.927673 6527.6176 2.3336769e+10 0.17177554 0.041164872 109.49402 47.797694 6529.5422 2.1910196e+10 0.17542746 0.043099401 109.59975 47.661754 6531.4667 2.0313799e+10 0.17806316 0.045907969 109.70548 47.522696 6533.3912 1.8795430e+10 0.18033707 0.047685853 109.81121 47.381723 6535.3158 1.7437721e+10 0.18097708 0.048087312 109.91374 47.240766 6537.2403 1.6225734e+10 0.18109353 0.048798526 110.01442 47.099818 6539.1649 1.5085572e+10 0.17995461 0.049843186 110.11836 46.962108 6541.0894 1.4004764e+10 0.17813365 0.051297537 110.22409 46.826168 6543.0139 1.3031469e+10 0.17611298 0.051385552 110.32650 46.686904 6544.9385 1.2111998e+10 0.17431335 0.052405659 110.42719 46.545930 6546.8630 1.1243936e+10 0.17199977 0.053174650 110.52789 46.408350 6548.7876 1.0439508e+10 0.16966122 0.053902837 110.62859 46.272411 6550.7121 9.7580679e+09 0.16800581 0.055163662 110.71641 46.146866 6552.6366 9.2452970e+09 0.16640607 0.055426526 110.79841 46.026034 6554.5612 8.8103315e+09 0.16411430 0.054844156 110.88547 45.897734 6556.4857 8.3481700e+09 0.16165938 0.053941717 110.98113 45.756759 6558.4103 7.8479031e+09 0.15933137 0.052889718 111.07872 45.617721 6560.3348 7.3495768e+09 0.15684238 0.051972450 111.17942 45.481783 6562.2593 6.8653160e+09 0.15420691 0.050633138 111.27610 45.343849 6564.1839 6.4062403e+09 0.15127604 0.048688266 111.36670 45.202901 6566.1084 6.0013695e+09 0.14890506 0.047121556 111.45377 45.072015 6568.0330 5.6820210e+09 0.14709667 0.045741372 111.53576 44.955498 6569.9575 5.4181914e+09 0.14515600 0.044914742 111.61905 44.836670 6571.8820 5.1638654e+09 0.14282604 0.044262375 111.71471 44.695696 6573.8066 4.8884105e+09 0.14001151 0.043010229 111.80982 44.554722 6575.7311 4.5832605e+09 0.13756947 0.041641176 111.90045 44.413748 6577.6556 4.3180841e+09 0.13486311 0.039190507 111.98950 44.275763 6579.5802 4.1080618e+09 0.13162136 0.036751542 112.06717 44.159246 6581.5047 3.9372714e+09 0.12841333 0.035443771 112.14485 44.042730 6583.4293 3.7884825e+09 0.12554318 0.034804391 112.22890 43.906527 6585.3538 3.6120668e+09 0.12302990 0.033687913 112.31449 43.765554 6587.2783 3.3961016e+09 0.12109701 0.033220040 112.40420 43.624578 6589.2029 3.1804554e+09 0.11934707 0.032643471 112.49483 43.483602 6591.1274 2.9933221e+09 0.11724666 0.029058126 112.57108 43.362990 6593.0520 2.8426750e+09 0.11546133 0.027053910 112.64444 43.246474 6594.9765 2.7198595e+09 0.11329236 0.025636469 112.72670 43.117355 6596.9010 2.5895952e+09 0.11088054 0.025723177 112.81733 42.976381 6598.8256 2.4595418e+09 0.10914316 0.025013003 112.89882 42.848348 6600.7501 2.3490290e+09 0.10898868 0.026531987 112.97218 42.731831 6602.6747 2.2508565e+09 0.10807341 0.026940904 113.04706 42.610139 6604.5992 2.1522915e+09 0.10694765 0.026427062 113.12760 42.469194 6606.5237 2.0402862e+09 0.10614595 0.026562819 113.20653 42.332780 6608.4483 1.9388900e+09 0.10366796 0.023720519 113.27989 42.211948 6610.3728 1.8555340e+09 0.10085286 0.024359199 113.35325 42.091117 6612.2974 1.7749122e+09 0.098926337 0.024098577 113.43315 41.956567 6614.2219 1.6870512e+09 0.097841246 0.023787613 113.51370 41.820627 6616.1464 1.5995976e+09 0.096295471 0.023305282 113.58763 41.698614 6618.0710 1.5291416e+09 0.095566397 0.023824392 113.66099 41.577781 6619.9955 1.4631392e+09 0.094715803 0.024766116 113.73870 41.444772 6621.9201 1.4016562e+09 0.093313286 0.024784490 113.81926 41.303798 6623.8446 1.3350314e+09 0.091345596 0.024804735 113.89270 41.177948 6625.7691 1.2810799e+09 0.090134427 0.026315413 113.96175 41.061431 6627.6937 1.2306666e+09 0.088348338 0.025584766 114.03274 40.937550 6629.6182 1.1708979e+09 0.087377733 0.025997330 114.10827 40.796577 6631.5428 1.1114344e+09 0.086098631 0.025985899 114.18175 40.663305 6633.4673 1.0570686e+09 0.085194298 0.026233838 114.25079 40.546789 6635.3918 1.0170223e+09 0.084123310 0.026458549 114.31985 40.430241 6637.3164 9.7563206e+08 0.083136414 0.026006463 114.39535 40.289356 6639.2409 9.2749571e+08 0.082603051 0.025541968 114.47074 40.148614 6641.1655 8.8541108e+08 0.083349357 0.025148862 114.53548 40.027780 6643.0900 8.5037210e+08 0.083063428 0.025206206 114.60021 39.906947 6645.0145 8.1935382e+08 0.082282880 0.025458491 114.67242 39.775645 6646.9391 7.8343239e+08 0.081305763 0.026406240 114.74792 39.639733 6648.8636 7.4413748e+08 0.080366834 0.027542387 114.81580 39.514492 6650.7881 7.0725077e+08 0.080179254 0.026435666 114.88054 39.393661 6652.7127 6.7824170e+08 0.079885021 0.027446610 114.94527 39.274515 6654.6372 6.5774623e+08 0.078919641 0.027764761 115.01000 39.157998 6656.5618 6.3638551e+08 0.077193287 0.028516477 115.07552 39.039694 6658.4863 6.1163448e+08 0.075882562 0.030923552 115.15104 38.898720 6660.4108 5.8437353e+08 0.074706993 0.031999436 115.22525 38.759873 6662.3354 5.5633435e+08 0.073492951 0.032856101 115.28567 38.643355 6664.2599 5.3371725e+08 0.072394235 0.031255037 115.34608 38.526838 6666.1845 5.1229576e+08 0.072386866 0.026944540 115.41425 38.391498 6668.1090 4.8986385e+08 0.071665573 0.027567235 115.48474 38.250524 6670.0335 4.6704430e+08 0.071245598 0.027313093 115.55072 38.128712 6671.9581 4.4760722e+08 0.071090675 0.026879002 115.61545 38.012196 6673.8826 4.2905754e+08 0.070564364 0.028779243 115.68286 37.884277 6675.8072 4.0990213e+08 0.068804976 0.031344366 115.75335 37.743301 6677.7317 3.9213038e+08 0.067860554 0.031318030 115.81693 37.614067 6679.6562 3.7457973e+08 0.067933343 0.029725484 115.87303 37.497553 6681.5808 3.5807934e+08 0.068859297 0.030102923 115.92983 37.380335 6683.5053 3.4347773e+08 0.069351485 0.031929131 115.99025 37.259502 6685.4299 3.3314269e+08 0.069136324 0.033158874 116.05066 37.138670 6687.3544 3.2006419e+08 0.067434215 0.034145249 116.11959 37.005063 6689.2789 3.0619143e+08 0.065177602 0.033764936 116.19008 36.869123 6691.2035 2.9204708e+08 0.064461506 0.032953256 116.24821 36.746166 6693.1280 2.8203656e+08 0.063790085 0.031560171 116.30431 36.625335 6695.0526 2.7470456e+08 0.063332200 0.029849820 116.36820 36.496329 6696.9771 2.6302036e+08 0.062903255 0.030081749 116.43867 36.360416 6698.9016 2.4696046e+08 0.061877743 0.031455414 116.50116 36.232881 6700.8262 2.3405772e+08 0.060360320 0.031280514 116.55726 36.112050 6702.7507 2.2719857e+08 0.059854091 0.033476178 116.61559 35.987620 6704.6753 2.1832633e+08 0.060072211 0.036509138 116.68104 35.851681 6706.5998 2.0795804e+08 0.059892017 0.039490296 116.74414 35.720636 6708.5243 1.9845582e+08 0.059520202 0.040614557 116.80024 35.604119 6710.4489 1.9048832e+08 0.058287572 0.040584356 116.85634 35.487601 6712.3734 1.8336611e+08 0.056483185 0.042523257 116.91244 35.367052 6714.2979 1.7511730e+08 0.054701148 0.047325808 116.96854 35.246221 6716.2225 1.6999816e+08 0.053251412 0.048729066 117.02731 35.116060 6718.1470 1.6607533e+08 0.051487901 0.050041400 117.08772 34.980121 6720.0716 1.6262208e+08 0.050728496 0.050411474 117.14542 34.853719 6721.9961 1.5489240e+08 0.050944896 0.050604031 117.20152 34.732888 6723.9206 1.4916340e+08 0.049241256 0.049882405 117.26055 34.607312 6725.8452 1.4705521e+08 0.045635634 0.041048072 117.32601 34.471373 6727.7697 1.4246685e+08 0.044964370 0.039934890 117.38698 34.341801 6729.6943 1.3598979e+08 0.044173963 0.040582682 117.43876 34.225285 6731.6188 1.2650124e+08 0.042794771 0.042981561 117.49064 34.108510 6733.5433 1.1822737e+08 0.042014583 0.046874283 117.55106 33.967535 6735.4679 1.1391106e+08 0.043014660 0.049790126 117.61126 33.827157 6737.3924 1.1086975e+08 0.044502759 0.055385640 117.66305 33.710641 6739.3170 1.0560348e+08 0.045032053 0.063214454 117.71484 33.594124 6741.2415 99361582. 0.043926448 0.066447469 117.77272 33.463892 6743.1660 90704566. 0.040715865 0.072167553 117.83312 33.327980 6745.0906 85455244. 0.038139297 0.078604966 117.88731 33.206043 6747.0151 81158738. 0.033730402 0.067355956 117.93910 33.089527 6748.9397 82351173. 0.034044142 0.071960483 117.99437 32.963147 6750.8642 89006334. 0.031273229 0.073479786 118.05478 32.822174 6752.7887 94804274. 0.028633557 0.073221758 118.11160 32.691401 6754.7133 98851599. 0.027265836 0.075066430 118.16338 32.574885 6756.6378 96811840. 0.024971758 0.075808109 118.21603 32.456429 6758.5624 90765665. 0.025568864 0.074894502 118.27645 32.320489 6760.4869 83088138. 0.026204094 0.076989761 118.33630 32.184548 6762.4114 76859369. 0.030650575 0.077387164 118.39168 32.048608 6764.3360 71870790. 0.033406757 0.079499381 118.44660 31.915145 6766.2605 69993566. 0.034656542 0.080303037 118.49839 31.798629 6768.1851 68129439. 0.031722624 0.081521896 118.55017 31.682112 6770.1096 64227706. 0.027800096 0.087145514 118.60487 31.545779 6772.0341 61107272. 0.024414935 0.091813369 118.66025 31.404805 6773.9587 59224648. 0.020994060 0.096481223 118.70912 31.283985 6775.8832 52831174. 0.017210102 0.10114908 118.75659 31.167470 6777.8078 47452657. 0.011400831 0.10581693 118.81062 31.041111 6779.7323 45359370. 0.0095979011 0.11048479 118.87104 30.905171 6781.6568 49827746. 0.0099556662 0.11515264 118.92883 30.769245