# # 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 = 46.529492 km # Date (UTC) = 2013-12-26T09:34:04.015 # Date (julian) = 2456652.89865759 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6507.6928 5.2089960e+10 0.075776574 0.034602956 -25.295416 47.954586 6509.6414 4.8896958e+10 0.084600191 0.035190557 -25.380374 47.869628 6511.5901 4.5471555e+10 0.093522998 0.035778159 -25.465331 47.784671 6513.5387 4.2458039e+10 0.10275339 0.036365760 -25.551912 47.697176 6515.4873 3.9661377e+10 0.11225359 0.036953362 -25.643668 47.601597 6517.4359 3.6863973e+10 0.12193662 0.037540963 -25.735424 47.506018 6519.3845 3.4177523e+10 0.13181509 0.038128565 -25.820826 47.419175 6521.3332 3.1622491e+10 0.14187742 0.038716166 -25.902385 47.337616 6523.2818 2.9611977e+10 0.14872697 0.039248951 -25.983944 47.256056 6525.2304 2.7921314e+10 0.15429122 0.039755920 -26.065511 47.172176 6527.1790 2.6301400e+10 0.15874721 0.040846441 -26.147081 47.087207 6529.1276 2.4788466e+10 0.16167774 0.042439107 -26.228651 47.002238 6531.0763 2.3334028e+10 0.16450130 0.045339680 -26.310213 46.919787 6533.0249 2.1983467e+10 0.16811254 0.047530162 -26.391772 46.838228 6534.9735 2.0736898e+10 0.16985250 0.048216885 -26.473332 46.756669 6536.9221 1.9513976e+10 0.17032898 0.048615551 -26.552187 46.672406 6538.8707 1.8280369e+10 0.17054110 0.049580689 -26.630348 46.587448 6540.8194 1.7079016e+10 0.17066416 0.051241193 -26.708509 46.502491 6542.7680 1.5989406e+10 0.16999740 0.051293809 -26.786671 46.417533 6544.7166 1.4969067e+10 0.16908398 0.052225675 -26.864832 46.332575 6546.6652 1.3997345e+10 0.16738929 0.053011904 -26.942994 46.247618 6548.6139 1.3025744e+10 0.16570039 0.053850963 -27.030062 46.152978 6550.5625 1.2019489e+10 0.16452614 0.055126198 -27.118008 46.057385 6552.5111 1.1118036e+10 0.16343881 0.055458124 -27.202063 45.965933 6554.4597 1.0350543e+10 0.16176285 0.054842027 -27.276826 45.884373 6556.4083 9.6776328e+09 0.16006027 0.053953093 -27.351588 45.802813 6558.3570 9.0944266e+09 0.15849784 0.052935133 -27.426351 45.720055 6560.3056 8.5303652e+09 0.15669917 0.051998791 -27.501114 45.635098 6562.2542 8.0058383e+09 0.15473226 0.050638024 -27.575877 45.550140 6564.2028 7.5530040e+09 0.15244713 0.048679679 -27.650640 45.465183 6566.1514 7.1285010e+09 0.15074868 0.047097214 -27.725403 45.380225 6568.1001 6.7449648e+09 0.14967214 0.045679681 -27.800165 45.295267 6570.0487 6.3801536e+09 0.14860049 0.044897343 -27.874933 45.211892 6571.9973 6.0431256e+09 0.14709494 0.044230892 -27.949705 45.130321 6573.9459 5.7403463e+09 0.14481895 0.042898400 -28.024477 45.048750 6575.8945 5.4332554e+09 0.14285633 0.041477197 -28.102144 44.959826 6577.8432 5.1063999e+09 0.14078214 0.038895961 -28.182431 44.864247 6579.7918 4.7722992e+09 0.13840054 0.036635216 -28.262718 44.768668 6581.7404 4.4637352e+09 0.13599501 0.035372403 -28.337982 44.682747 6583.6890 4.2039110e+09 0.13354451 0.034672910 -28.412744 44.597789 6585.6377 3.9933671e+09 0.13111764 0.033460986 -28.487506 44.512832 6587.5863 3.8025323e+09 0.12920871 0.033288265 -28.558985 44.427874 6589.5349 3.6276297e+09 0.12717854 0.031984798 -28.630350 44.342916 6591.4835 3.4624653e+09 0.12497830 0.028656321 -28.701714 44.258040 6593.4321 3.2986165e+09 0.12314898 0.026700466 -28.773078 44.176481 6595.3808 3.1492779e+09 0.12093160 0.025663057 -28.844443 44.094923 6597.3294 3.0005683e+09 0.11888164 0.025618788 -28.916222 44.012222 6599.2780 2.8442087e+09 0.11748231 0.024946450 -28.992698 43.916629 6601.2266 2.6893776e+09 0.11747063 0.027152414 -29.069173 43.821035 6603.1752 2.5342964e+09 0.11654949 0.026559532 -29.141681 43.730400 6605.1239 2.3954947e+09 0.11593392 0.026768953 -29.209647 43.645442 6607.0725 2.2774594e+09 0.11464306 0.025563870 -29.277613 43.560484 6609.0211 2.1680449e+09 0.11166349 0.023712200 -29.345579 43.475527 6610.9697 2.0752227e+09 0.10873329 0.024929528 -29.413545 43.390569 6612.9183 1.9874082e+09 0.10752152 0.023634600 -29.481512 43.305611 6614.8670 1.9076011e+09 0.10605379 0.023343187 -29.549478 43.222627 6616.8156 1.8280943e+09 0.10431880 0.023410305 -29.617443 43.141067 6618.7642 1.7507651e+09 0.10325323 0.024347864 -29.685409 43.059507 6620.7128 1.6739104e+09 0.10210705 0.024996906 -29.758798 42.969000 6622.6615 1.5866625e+09 0.10044120 0.024581937 -29.835262 42.873421 6624.6101 1.5023532e+09 0.098530436 0.025188878 -29.911534 42.778081 6626.5587 1.4197626e+09 0.096513036 0.025879078 -29.979509 42.693113 6628.5073 1.3542260e+09 0.094777672 0.025909069 -30.047484 42.608144 6630.4559 1.2974930e+09 0.093045612 0.025929425 -30.115186 42.523176 6632.4046 1.2440416e+09 0.091490073 0.026080855 -30.179753 42.438218 6634.3532 1.1974093e+09 0.090159566 0.026352605 -30.244321 42.353261 6636.3018 1.1461677e+09 0.088883768 0.026432553 -30.309999 42.266841 6638.2504 1.0979727e+09 0.088035421 0.025660732 -30.382640 42.171261 6640.1990 1.0417115e+09 0.088206346 0.025246299 -30.455281 42.075682 6642.1477 9.8723919e+08 0.088296295 0.025157739 -30.523707 41.987422 6644.0963 9.3947112e+08 0.087339918 0.025354012 -30.588275 41.905863 6646.0449 8.9566289e+08 0.086430577 0.025943390 -30.652843 41.824305 6647.9935 8.5725743e+08 0.085518942 0.026960875 -30.715446 41.740770 6649.9421 8.2715062e+08 0.084652919 0.026334988 -30.776624 41.655801 6651.8908 7.9777330e+08 0.083947959 0.027166808 -30.837802 41.570833 6653.8394 7.6913218e+08 0.083185174 0.027954222 -30.906282 41.479104 6655.7880 7.3244432e+08 0.081545800 0.027935822 -30.978922 41.383525 6657.7366 6.9350791e+08 0.080072846 0.029755577 -31.051314 41.288174 6659.6852 6.6361750e+08 0.078554611 0.031691655 -31.112484 41.203217 6661.6339 6.3774216e+08 0.077021565 0.032857793 -31.173654 41.118259 6663.5825 6.1865391e+08 0.075581628 0.032321790 -31.235426 41.032765 6665.5311 5.9124892e+08 0.075227138 0.027676884 -31.304243 40.941009 6667.4797 5.6325924e+08 0.074521517 0.027279672 -31.373061 40.849252 6669.4284 5.3627270e+08 0.073403017 0.027915753 -31.438335 40.760644 6671.3770 5.1173515e+08 0.073205182 0.026870721 -31.499505 40.675687 6673.3256 4.9429009e+08 0.072596996 0.027946171 -31.560675 40.590729 6675.2742 4.7761326e+08 0.070962694 0.030323584 -31.621848 40.505766 6677.2228 4.5969675e+08 0.069280433 0.032041430 -31.683026 40.420797 6679.1715 4.4414383e+08 0.068891979 0.030126085 -31.744204 40.335828 6681.1201 4.2665249e+08 0.069937052 0.029749482 -31.807588 40.244723 6683.0687 4.1202273e+08 0.070530805 0.031289264 -31.872582 40.149144 6685.0173 3.9817115e+08 0.070410688 0.032723134 -31.937576 40.053565 6686.9659 3.7638569e+08 0.068973018 0.034323085 -32.006250 39.961667 6688.9146 3.5671356e+08 0.066480103 0.033996303 -32.075066 39.869912 6690.8632 3.3708671e+08 0.065719912 0.033016942 -32.140049 39.780516 6692.8118 3.2055135e+08 0.065027832 0.031822627 -32.197821 39.695558 6694.7604 3.1219849e+08 0.064380321 0.030195247 -32.255593 39.610601 6696.7090 2.9732545e+08 0.064047896 0.029970381 -32.316285 39.521348 6698.6577 2.8485011e+08 0.063042758 0.031120544 -32.381278 39.425769 6700.6063 2.7537266e+08 0.061465897 0.031117421 -32.446271 39.330190 6702.5549 2.6208582e+08 0.060682291 0.033319830 -32.505568 39.242989 6704.5035 2.5564238e+08 0.060866803 0.036424814 -32.563340 39.158031 6706.4522 2.4387503e+08 0.060712392 0.039233342 -32.621112 39.073074 6708.4008 2.3152933e+08 0.060351198 0.040480007 -32.684994 38.982363 6710.3494 2.2140566e+08 0.059125525 0.040564885 -32.749987 38.890606 6712.2980 2.0915842e+08 0.057243180 0.042383276 -32.814102 38.797965 6714.2466 2.0083930e+08 0.055321642 0.047321951 -32.875281 38.702372 6716.1953 1.8930505e+08 0.053829221 0.048688958 -32.936461 38.606778 6718.1439 1.7858337e+08 0.052053735 0.050036496 -32.995544 38.517729 6720.0925 1.6902937e+08 0.051354705 0.050409049 -33.053315 38.432771 6722.0411 1.6358584e+08 0.051530764 0.050554367 -33.111087 38.347814 6723.9897 1.5632074e+08 0.049820544 0.049920940 -33.171145 38.258284 6725.9384 1.4708953e+08 0.046322444 0.040989869 -33.232315 38.166529 6727.8870 1.4043937e+08 0.045792257 0.039778668 -33.293486 38.074557 6729.8356 1.3609769e+08 0.044865940 0.040488475 -33.354656 37.978978 6731.7842 1.3481187e+08 0.043425167 0.043310781 -33.415827 37.883399 6733.7328 1.2904696e+08 0.042650347 0.047903151 -33.476997 37.787820 6735.6815 1.2288652e+08 0.044012214 0.050016862 -33.538168 37.692240 6737.6301 1.1802848e+08 0.045462664 0.056142732 -33.599339 37.596661 6739.5787 1.1298202e+08 0.045798332 0.063534784 -33.654896 37.512658 6741.5273 1.0865711e+08 0.044397277 0.067262672 -33.709269 37.431098 6743.4760 1.0399485e+08 0.040730926 0.074258204 -33.763642 37.349538 6745.4246 1.0063376e+08 0.038809053 0.078745374 -33.824026 37.255586 6747.3732 97830871. 0.034546511 0.067232685 -33.885205 37.159993 6749.3218 97365442. 0.033918763 0.072189820 -33.945359 37.064403 6751.2704 94599219. 0.031394564 0.073826013 -34.002706 36.968824 6753.2191 91993606. 0.029334964 0.073686201 -34.060054 36.873246 6755.1677 90133770. 0.027720655 0.074531829 -34.117402 36.780159 6757.1163 87140711. 0.025570762 0.076387117 -34.174748 36.688402 6759.0649 84539035. 0.026705167 0.075835621 -34.232235 36.596506 6761.0135 80729552. 0.027238088 0.077969344 -34.293405 36.500927 6762.9622 76493099. 0.032563515 0.076498798 -34.354576 36.405348 6764.9108 71556411. 0.035131597 0.079526919 -34.414137 36.311379 6766.8594 70676461. 0.035432294 0.081657737 -34.471485 36.219624 6768.8080 68576692. 0.031510381 0.083763493 -34.528833 36.127869 6770.7566 65470806. 0.028168422 0.088714902 -34.586180 36.033035 6772.7053 62964847. 0.024996417 0.093441164 -34.643526 35.937456 6774.6539 61002437. 0.021887949 0.098167427 -34.700873 35.842602 6776.6025 56337983. 0.019173997 0.10289369 -34.758221 35.750846 6778.5511 56092343. 0.016368649 0.10761995 -34.815569 35.659089 6780.4998 51694919. 0.017903318 0.11234622 -34.870722 35.565138 6782.4484 47915759. 0.010826695 0.11707248 -34.924246 35.469559 6784.3970 48325153. -0.0018250655 0.12179874 -34.977770 35.373980