# # 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 = 51.451360 km # Date (UTC) = 2011-12-04T10:17:52.898 # Date (julian) = 2455899.92908447 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6504.4775 1.4814470e+11 0.065726744 0.033633374 -37.605244 50.732554 6506.5400 1.2957483e+11 0.074135696 0.034255319 -37.702361 50.642631 6508.6025 1.1547339e+11 0.082873667 0.034877264 -37.803164 50.550523 6510.6650 1.0194925e+11 0.091750278 0.035499210 -37.912423 50.453404 6512.7275 8.9396824e+10 0.10074398 0.036121155 -38.021681 50.356284 6514.7900 7.7935255e+10 0.10986363 0.036743100 -38.127571 50.255797 6516.8525 6.9281122e+10 0.11944477 0.037365045 -38.232783 50.154632 6518.9150 6.2705085e+10 0.12953921 0.037986990 -38.333772 50.057526 6520.9776 5.6987083e+10 0.14003276 0.038608936 -38.427293 49.967603 6523.0401 5.1814254e+10 0.14799492 0.039189044 -38.520814 49.877680 6525.1026 4.7162066e+10 0.15384790 0.039770508 -38.621136 49.781217 6527.1651 4.2996744e+10 0.15821569 0.040836329 -38.726362 49.680037 6529.2276 3.8685383e+10 0.16120499 0.042598340 -38.831142 49.578858 6531.2901 3.4754735e+10 0.16414482 0.045650949 -38.932307 49.477692 6533.3526 3.1372811e+10 0.16714682 0.047669444 -39.033473 49.376527 6535.4151 2.8634183e+10 0.16833732 0.048044209 -39.127455 49.282545 6537.4777 2.6781708e+10 0.16987504 0.048910419 -39.217378 49.192622 6539.5402 2.5381240e+10 0.17081991 0.050297488 -39.307301 49.102698 6541.6027 2.3725639e+10 0.17016663 0.051131085 -39.406879 49.003121 6543.6652 2.1905070e+10 0.16891417 0.051556476 -39.508045 48.901955 6545.7277 1.9987297e+10 0.16728203 0.052462087 -39.607642 48.800790 6547.7902 1.8274435e+10 0.16603180 0.053587870 -39.704761 48.699624 6549.8527 1.6922804e+10 0.16469954 0.054835281 -39.801881 48.598459 6551.9152 1.5552800e+10 0.16323839 0.055557016 -39.889109 48.507596 6553.9778 1.4488509e+10 0.16118410 0.054843562 -39.975434 48.417673 6556.0403 1.3738370e+10 0.15946210 0.054007205 -40.063231 48.326218 6558.1028 1.3103777e+10 0.15815249 0.053151722 -40.160350 48.225052 6560.1653 1.2471854e+10 0.15618721 0.052125276 -40.257469 48.123887 6562.2278 1.1687026e+10 0.15401274 0.050663137 -40.351906 48.022712 6564.2903 1.0803993e+10 0.15181275 0.048640025 -40.444992 47.921531 6566.3528 9.9965698e+09 0.15027503 0.046983289 -40.536765 47.822537 6568.4153 9.3244085e+09 0.14913337 0.045389862 -40.623091 47.732614 6570.4779 8.7755737e+09 0.14811306 0.044719565 -40.709416 47.642691 6572.5404 8.3764559e+09 0.14666764 0.043920700 -40.798535 47.548113 6574.6029 7.9356962e+09 0.14474857 0.042565443 -40.891609 47.446947 6576.6654 7.4722666e+09 0.14270579 0.040605511 -40.984683 47.345782 6578.7279 7.0151537e+09 0.14017392 0.037500165 -41.073938 47.244616 6580.7904 6.5642881e+09 0.13795918 0.035790292 -41.162963 47.143451 6582.8529 6.1471609e+09 0.13609579 0.035061688 -41.249018 47.047588 6584.9154 5.8098680e+09 0.13379559 0.034016834 -41.331747 46.957665 6586.9780 5.5460442e+09 0.13126915 0.033158654 -41.414477 46.867742 6589.0405 5.3010052e+09 0.12890890 0.032965690 -41.501560 46.770044 6591.1030 5.0499981e+09 0.12644445 0.029085707 -41.590586 46.668879 6593.1655 4.7728485e+09 0.12468331 0.026948361 -41.679615 46.567711 6595.2280 4.4693569e+09 0.12274673 0.025647216 -41.768654 46.466530 6597.2905 4.1939378e+09 0.12081626 0.025631050 -41.857693 46.365350 6599.3530 3.9563359e+09 0.11963221 0.024950963 -41.936612 46.272606 6601.4155 3.7725479e+09 0.11960739 0.027241388 -42.012147 46.182683 6603.4781 3.6280097e+09 0.11836635 0.026380265 -42.087682 46.092760 6605.5406 3.4691828e+09 0.11784804 0.027118538 -42.172371 45.991940 6607.6031 3.3083913e+09 0.11610067 0.024516135 -42.257349 45.890774 6609.6656 3.1394193e+09 0.11321682 0.023903644 -42.344344 45.789609 6611.7281 2.9783339e+09 0.11070293 0.024494139 -42.433370 45.688444 6613.7906 2.8236335e+09 0.10966349 0.023863670 -42.522178 45.587278 6615.8531 2.6700813e+09 0.10811693 0.023277780 -42.603111 45.486113 6617.9156 2.5218437e+09 0.10736016 0.023742828 -42.684043 45.384948 6619.9782 2.3857816e+09 0.10653621 0.024761927 -42.761976 45.290030 6622.0407 2.2731013e+09 0.10502453 0.024747168 -42.837512 45.200106 6624.1032 2.1821745e+09 0.10277460 0.024917543 -42.913047 45.110183 6626.1657 2.0989655e+09 0.10113156 0.026379793 -42.992777 45.008391 6628.2282 2.0125069e+09 0.099076521 0.025795749 -43.073722 44.903164 6630.2907 1.9191753e+09 0.097173380 0.025929018 -43.155896 44.799175 6632.3532 1.8247755e+09 0.095189917 0.026074701 -43.240874 44.698010 6634.4157 1.7397885e+09 0.093534412 0.026357169 -43.325852 44.596844 6636.4783 1.6643543e+09 0.092046654 0.026364026 -43.396963 44.505050 6638.5408 1.6072174e+09 0.091096242 0.025648082 -43.465304 44.415127 6640.6033 1.5530473e+09 0.091480468 0.025196839 -43.534317 44.324604 6642.6658 1.4974265e+09 0.091308977 0.025178942 -43.615250 44.223438 6644.7283 1.4355862e+09 0.090390543 0.025422320 -43.696183 44.122272 6646.7908 1.3710930e+09 0.089329551 0.026329502 -43.777116 44.021107 6648.8533 1.3085273e+09 0.088210040 0.027535508 -43.858048 43.919941 6650.9158 1.2469356e+09 0.087849158 0.026464900 -43.938532 43.818776 6652.9784 1.1904195e+09 0.087484354 0.027519707 -44.015417 43.717611 6655.0409 1.1364568e+09 0.086255893 0.027627104 -44.092302 43.616446 6657.1034 1.0855629e+09 0.084350021 0.029021032 -44.169188 43.512691 6659.1659 1.0317537e+09 0.082831197 0.031799993 -44.246074 43.407479 6661.2284 9.8266518e+08 0.081485320 0.032651283 -44.321522 43.304841 6663.2909 9.3690980e+08 0.080220855 0.032402591 -44.389873 43.214905 6665.3534 9.0228673e+08 0.079644647 0.027968018 -44.458223 43.124970 6667.4159 8.7330633e+08 0.078889974 0.027256242 -44.528319 43.030668 6669.4785 8.4347970e+08 0.077722465 0.027864293 -44.601158 42.929503 6671.5410 8.1494829e+08 0.077411159 0.026873058 -44.673997 42.828338 6673.6035 7.7868814e+08 0.076614743 0.028361771 -44.750548 42.727173 6675.6660 7.4495008e+08 0.074449529 0.031073983 -44.827433 42.626008 6677.7285 7.1388069e+08 0.072917764 0.031322567 -44.902512 42.524842 6679.7910 6.8110297e+08 0.072789421 0.029614107 -44.975351 42.423677 6681.8535 6.5393121e+08 0.073504576 0.030312176 -45.048190 42.322512 6683.9160 6.2470589e+08 0.073826431 0.032531056 -45.121029 42.221347 6685.9786 5.9655450e+08 0.073466689 0.033738437 -45.193868 42.120182 6688.0411 5.7145849e+08 0.071225290 0.033794671 -45.266708 42.019016 6690.1036 5.4808589e+08 0.069481266 0.033103993 -45.339547 41.917850 6692.1661 5.2959450e+08 0.068520371 0.032572451 -45.412387 41.816552 6694.2286 5.1022577e+08 0.067719632 0.030940620 -45.485226 41.711341 6696.2911 4.9075215e+08 0.067582148 0.029796740 -45.558065 41.606130 6698.3536 4.6954707e+08 0.066711972 0.030703220 -45.628631 41.503191 6700.4161 4.4847531e+08 0.065154676 0.030976386 -45.697423 41.402026 6702.4787 4.3058181e+08 0.064143479 0.033258941 -45.766580 41.300860 6704.5412 4.1214273e+08 0.064438155 0.036443297 -45.839419 41.199695 6706.6037 3.9636129e+08 0.064233249 0.039497069 -45.912258 41.098530 6708.6662 3.7734646e+08 0.063802833 0.040769043 -45.982599 40.997355 6710.7287 3.6274304e+08 0.062319028 0.040639131 -46.051402 40.896174 6712.7912 3.5108788e+08 0.060346759 0.043298993 -46.120204 40.794996 6714.8537 3.3976483e+08 0.058360880 0.047367592 -46.188996 40.693830 6716.9162 3.3025286e+08 0.056357937 0.049750907 -46.257788 40.592665 6718.9788 3.1400393e+08 0.054066727 0.051336757 -46.326580 40.491500 6721.0413 3.0061464e+08 0.054494450 0.050316334 -46.395373 40.390335 6723.1038 2.8620459e+08 0.053415716 0.049426826 -46.463333 40.289170 6725.1663 2.7252254e+08 0.049311486 0.041472143 -46.528079 40.188005 6727.2288 2.6317048e+08 0.047911964 0.040655547 -46.592824 40.086839 6729.2913 2.5350100e+08 0.047448755 0.040851254 -46.660543 39.985674 6731.3538 2.4690096e+08 0.045751767 0.042454220 -46.729334 39.884509 6733.4163 2.3696459e+08 0.044708678 0.046184775 -46.797060 39.782277 6735.4789 2.2705754e+08 0.045510729 0.049801777 -46.861806 39.677064 6737.5414 2.2006240e+08 0.046908529 0.055860119 -46.926552 39.571851 6739.6039 2.1072872e+08 0.047087754 0.063565591 -46.991298 39.469845 6741.6664 2.0347009e+08 0.045293865 0.067659294 -47.056043 39.368679 6743.7289 1.9700806e+08 0.040914845 0.075964643 -47.120789 39.267514 6745.7914 1.9200373e+08 0.039269664 0.078899594 -47.185534 39.166349 6747.8539 1.8613949e+08 0.034980271 0.067067184 -47.250280 39.065184 6749.9164 1.7771328e+08 0.032480021 0.072027009 -47.322888 38.951734 6751.9790 1.6782397e+08 0.029485459 0.074125581 -47.396885 38.836114 6754.0415 1.6132995e+08 0.028273697 0.076146779 -47.464521 38.730433 6756.1040 1.5623783e+08 0.025700101 0.074434477 -47.529269 38.629267 6758.1665 1.4914296e+08 0.025128222 0.074057403 -47.593142 38.528099 6760.2290 1.4251326e+08 0.025500808 0.076497982 -47.653849 38.426918 6762.2915 1.3543589e+08 0.029360642 0.077580595 -47.714557 38.325738 6764.3540 1.3345421e+08 0.031977514 0.079500246 -47.785173 38.213791 6766.4165 1.2986246e+08 0.032783159 0.080655985 -47.859169 38.098171 6768.4791 1.2308205e+08 0.028887259 0.082579796 -47.925409 37.990984 6770.5416 1.1691505e+08 0.024582473 0.088193252 -47.986109 37.889819 6772.6041 1.0956374e+08 0.020627927 0.093195751 -48.046808 37.788653 6774.6666 1.0650146e+08 0.016799645 0.098198251 -48.107506 37.687488 6776.7291 1.0311859e+08 0.012982774 0.10320075 -48.168205 37.586323 6778.7916 99731867. 0.0091699584 0.10820325 -48.234463 37.475893 6780.8541 97442889. 0.0054027127 0.11320575 -48.303836 37.360272 6782.9166 93740799. 0.0015859804 0.11820825 -48.369057 37.251571 6784.9792 90975180. -0.0021924131 0.12321075 -48.429757 37.150406 6787.0417 85496527. -0.0061071814 0.12821325 -48.490487 37.049133 6789.1042 80993358. -0.010001359 0.13321575 -48.555234 36.933513 6791.1667 77518077. -0.013863813 0.13821825 -48.619981 36.817893 6793.2292 76394830. -0.017599112 0.14322075 -48.681305 36.714491 6795.2917 74853364. -0.021389142 0.14822325 -48.742004 36.613326 6797.3542 71601690. -0.025363079 0.15322575 -48.804216 36.506754 6799.4167 67514127. -0.029518434 0.15822825 -48.868963 36.391134 6801.4793 64717470. -0.033718768 0.16323075 -48.932853 36.278575 6803.5418 64561204. -0.037833938 0.16823325 -48.993553 36.177409 6805.6043 62526788. -0.042490779 0.17323575 -49.054253 36.076244 6807.6668 59312760. -0.047961970 0.17823825 -49.117950 35.964374 6809.7293 58283340. -0.054276606 0.18324075 -49.182697 35.848754 6811.7918 56231159. -0.064202076 0.18824325 -49.247444 35.733134 6813.8543 56273025. -0.10267057 0.19324575 -49.312190 35.617514 6815.9168 56054209. -0.075899676 0.19824825 -49.373570 35.507908 6817.9794 53271601. -0.015736163 0.20325074 -49.430224 35.406743