# # 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 = 55.047150 km # Date (UTC) = 2014-12-19T09:08:50.322 # Date (julian) = 2457010.88113799 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6503.3308 4.5063140e+10 0.055151220 0.033287602 -17.591247 49.901112 6505.3371 4.2204839e+10 0.062974297 0.033892588 -17.685716 49.817140 6507.3433 3.9627791e+10 0.071103873 0.034497574 -17.780185 49.733169 6509.3496 3.7355313e+10 0.079621258 0.035102560 -17.874654 49.649196 6511.3559 3.5268249e+10 0.088536052 0.035707546 -17.969123 49.565224 6513.3622 3.3215323e+10 0.097764723 0.036312532 -18.063592 49.481251 6515.3684 3.1216591e+10 0.10732180 0.036917517 -18.156287 49.397273 6517.3747 2.9422409e+10 0.11730642 0.037522503 -18.247270 49.313290 6519.3810 2.7647953e+10 0.12761474 0.038127489 -18.338252 49.229307 6521.3872 2.5941610e+10 0.13826470 0.038732475 -18.429226 49.145331 6523.3935 2.4349038e+10 0.14530653 0.039276643 -18.520195 49.061358 6525.3998 2.2868252e+10 0.15089917 0.039736589 -18.611164 48.977385 6527.4061 2.1505950e+10 0.15595912 0.041011270 -18.702134 48.893413 6529.4123 2.0225457e+10 0.15980064 0.042892582 -18.793105 48.809442 6531.4186 1.8936333e+10 0.16319884 0.045837951 -18.884075 48.725470 6533.4249 1.7665996e+10 0.16634871 0.047700143 -18.971774 48.641497 6535.4311 1.6459441e+10 0.16781011 0.048037270 -19.059245 48.557524 6537.4374 1.5340435e+10 0.16945332 0.048891446 -19.146717 48.473551 6539.4437 1.4383164e+10 0.17015711 0.050180694 -19.234200 48.389568 6541.4500 1.3514157e+10 0.16945586 0.051180613 -19.321683 48.305585 6543.4562 1.2719267e+10 0.16820276 0.051501632 -19.409163 48.221604 6545.4625 1.1875963e+10 0.16669666 0.052459710 -19.496634 48.137632 6547.4688 1.1119498e+10 0.16535416 0.053465628 -19.584105 48.053659 6549.4750 1.0466199e+10 0.16379147 0.054450382 -19.670313 47.969686 6551.4813 9.8874788e+09 0.16250173 0.055404698 -19.754286 47.885713 6553.4876 9.3732761e+09 0.16115595 0.055089966 -19.838258 47.801740 6555.4939 8.8229350e+09 0.15976147 0.054438410 -19.922231 47.717768 6557.5001 8.3009543e+09 0.15841657 0.053552628 -20.006203 47.633796 6559.5064 7.8309285e+09 0.15650721 0.052330023 -20.090176 47.549825 6561.5127 7.4020198e+09 0.15445530 0.051120050 -20.174156 47.465845 6563.5189 6.9879613e+09 0.15254787 0.049328075 -20.258139 47.381861 6565.5252 6.6137852e+09 0.15101413 0.047722015 -20.342123 47.297877 6567.5315 6.2642332e+09 0.14986483 0.046167807 -20.423343 47.211148 6569.5378 5.9388381e+09 0.14865539 0.044887424 -20.503817 47.123677 6571.5440 5.6297803e+09 0.14752656 0.044354692 -20.584290 47.036206 6573.5503 5.3273512e+09 0.14590096 0.043215883 -20.668014 46.951986 6575.5566 5.0370335e+09 0.14424151 0.041816297 -20.751986 46.868014 6577.5628 4.7697380e+09 0.14226481 0.039336291 -20.835710 46.784042 6579.5691 4.5258860e+09 0.13985006 0.036757633 -20.916184 46.700069 6581.5754 4.3036479e+09 0.13753430 0.035422376 -20.996657 46.616097 6583.5817 4.1041023e+09 0.13540050 0.034727260 -21.076388 46.532122 6585.5879 3.9183694e+09 0.13344955 0.033500742 -21.153373 46.448139 6587.5942 3.7428624e+09 0.13204853 0.033290020 -21.230358 46.364156 6589.6005 3.5718954e+09 0.13051299 0.031854707 -21.308583 46.278934 6591.6067 3.4080518e+09 0.12856741 0.028517278 -21.389056 46.191463 6593.6130 3.2474465e+09 0.12684544 0.026532309 -21.469529 46.103992 6595.6193 3.0963583e+09 0.12474481 0.025687792 -21.548263 46.018260 6597.6256 2.9549735e+09 0.12304515 0.025525327 -21.625238 45.934287 6599.6318 2.8174779e+09 0.12218436 0.024967731 -21.702212 45.850314 6601.6381 2.6917405e+09 0.12204607 0.027346196 -21.779187 45.766342 6603.6444 2.5717690e+09 0.12090365 0.026281811 -21.856162 45.682370 6605.6506 2.4574489e+09 0.12056865 0.027210876 -21.933137 45.598399 6607.6569 2.3495856e+09 0.11884550 0.024409849 -22.010119 45.514417 6609.6632 2.2462336e+09 0.11603416 0.023902927 -22.087104 45.430433 6611.6695 2.1459802e+09 0.11352398 0.024531544 -22.164088 45.346449 6613.6757 2.0521067e+09 0.11250288 0.023821514 -22.237833 45.259246 6615.6820 1.9658610e+09 0.11094547 0.023272515 -22.311309 45.171775 6617.6883 1.8798974e+09 0.10993701 0.023667441 -22.384784 45.084531 6619.6945 1.7999157e+09 0.10899717 0.024693494 -22.458261 45.000558 6621.7008 1.7248147e+09 0.10758382 0.024857161 -22.531737 44.916585 6623.7071 1.6543578e+09 0.10547118 0.024753787 -22.607115 44.830439 6625.7134 1.5780374e+09 0.10397039 0.026248845 -22.689776 44.735969 6627.7196 1.4987897e+09 0.10190833 0.025594789 -22.772437 44.641500 6629.7259 1.4242321e+09 0.10058762 0.025977861 -22.848976 44.554027 6631.7322 1.3570712e+09 0.098984024 0.026005139 -22.922452 44.470054 6633.7384 1.3003511e+09 0.097828100 0.026281176 -22.995928 44.386082 6635.7447 1.2449783e+09 0.096640659 0.026511468 -23.069411 44.299271 6637.7510 1.1921515e+09 0.095750905 0.025793605 -23.142897 44.211788 6639.7572 1.1461923e+09 0.095471542 0.025357416 -23.216382 44.124306 6641.7635 1.1025315e+09 0.095735490 0.025150893 -23.286532 44.040161 6643.7698 1.0605209e+09 0.094866939 0.025308848 -23.356509 43.956189 6645.7761 1.0207920e+09 0.093915231 0.025815241 -23.426487 43.872217 6647.7823 9.8029677e+08 0.092923850 0.026849683 -23.496464 43.788244 6649.7886 9.4386485e+08 0.092012085 0.026546632 -23.566441 43.704271 6651.7949 9.0980070e+08 0.091358451 0.027093325 -23.636420 43.619475 6653.8011 8.7483917e+08 0.090635211 0.027934700 -23.706406 43.531992 6655.8074 8.4451865e+08 0.088858805 0.027943844 -23.776392 43.444510 6657.8137 8.1292960e+08 0.087248041 0.029844968 -23.849671 43.354394 6659.8200 7.7713883e+08 0.085725409 0.031663553 -23.928397 43.259924 6661.8262 7.4303606e+08 0.084148602 0.032955769 -24.007123 43.165455 6663.8325 7.0716537e+08 0.082728456 0.032252505 -24.075604 43.079765 6665.8388 6.7884308e+08 0.082501221 0.027172764 -24.142082 42.995791 6667.8450 6.5437549e+08 0.081583553 0.027413859 -24.208560 42.911818 6669.8513 6.3103848e+08 0.080605577 0.027481337 -24.275038 42.824423 6671.8576 6.1058069e+08 0.080062564 0.026877570 -24.341516 42.736952 6673.8639 5.9267455e+08 0.079086692 0.028751188 -24.408994 42.648639 6675.8701 5.7229410e+08 0.076908682 0.031464984 -24.483783 42.554168 6677.8764 5.4911852e+08 0.075867026 0.031112316 -24.558572 42.459697 6679.8827 5.2462657e+08 0.076021804 0.029538367 -24.628543 42.371313 6681.8889 5.0107265e+08 0.076806416 0.030339346 -24.695021 42.287342 6683.8952 4.8561611e+08 0.077008943 0.032500535 -24.761499 42.203370 6685.9015 4.6820254e+08 0.076542040 0.033657034 -24.827984 42.116864 6687.9078 4.5187319e+08 0.074301592 0.033836632 -24.894470 42.029381 6689.9140 4.3561236e+08 0.072347522 0.033193247 -24.960957 41.941898 6691.9203 4.1972411e+08 0.071304296 0.032784132 -25.031216 41.848378 6693.9266 4.0563333e+08 0.070331120 0.031286216 -25.102069 41.753907 6695.9328 3.8986185e+08 0.070188834 0.029688121 -25.171507 41.662832 6697.9391 3.7337725e+08 0.069419885 0.030210112 -25.237985 41.578861 6699.9454 3.5866864e+08 0.067890453 0.030718107 -25.304463 41.494889 6701.9517 3.4547666e+08 0.066153440 0.032805804 -25.372977 41.404199 6703.9579 3.3179642e+08 0.066395346 0.036072289 -25.443830 41.305793 6705.9642 3.2072091e+08 0.066298900 0.038382767 -25.514683 41.207386 6707.9705 3.0821680e+08 0.065896692 0.040047807 -25.578253 41.122330 6709.9767 2.9707214e+08 0.064710538 0.040511284 -25.641233 41.038357 6711.9830 2.8872760e+08 0.062532069 0.041810639 -25.704477 40.953680 6713.9893 2.8069225e+08 0.060347172 0.047264673 -25.771403 40.859197 6715.9956 2.7125269e+08 0.058656687 0.048396820 -25.838330 40.764713 6718.0018 2.6043251e+08 0.056649823 0.049815268 -25.903176 40.675766 6720.0081 2.4734771e+08 0.055575235 0.050418827 -25.966155 40.591794 6722.0144 2.3802897e+08 0.055660573 0.050587432 -26.029134 40.507821 6724.0206 2.3012080e+08 0.053699061 0.049754246 -26.094746 40.414196 6726.0269 2.2314371e+08 0.049990971 0.040951610 -26.161662 40.315790 6728.0332 2.1143694e+08 0.049413917 0.039675140 -26.228074 40.219234 6730.0395 2.0020011e+08 0.048205359 0.040433008 -26.291053 40.135262 6732.0457 1.9695111e+08 0.046573982 0.043748628 -26.354032 40.051291 6734.0520 1.9108423e+08 0.045627894 0.049350471 -26.418075 39.964483 6736.0583 1.8854563e+08 0.047189795 0.050575318 -26.484992 39.870012 6738.0645 1.8140751e+08 0.048306811 0.057676448 -26.551909 39.775540 6740.0708 1.7190326e+08 0.048053661 0.064171342 -26.615953 39.678197 6742.0771 1.6757256e+08 0.045821554 0.068798592 -26.678934 39.579791 6744.0834 1.6055875e+08 0.041311268 0.077857889 -26.741253 39.484112 6746.0896 1.5847529e+08 0.039938141 0.077945208 -26.800741 39.400128 6748.0959 1.5458409e+08 0.036136227 0.067521450 -26.860230 39.316144 6750.1022 1.5096588e+08 0.033364080 0.072178599 -26.922180 39.228685 6752.1084 1.4548863e+08 0.030560650 0.074008984 -26.989097 39.134215 6754.1147 1.3742870e+08 0.029424453 0.076028992 -27.056013 39.039746 6756.1210 1.3486286e+08 0.026947228 0.074478230 -27.119816 38.945275 6758.1273 1.2891017e+08 0.026451861 0.073974431 -27.182797 38.850803 6760.1335 1.2582203e+08 0.026918228 0.076315909 -27.245777 38.755346 6762.1398 1.2055280e+08 0.030661855 0.077825331 -27.308757 38.656939 6764.1461 1.1407497e+08 0.033427820 0.079490284 -27.371738 38.558533 6766.1523 1.1079630e+08 0.034792712 0.080058355 -27.437513 38.462922 6768.1586 1.0707614e+08 0.031712596 0.081426766 -27.504429 38.368452 6770.1649 1.0386891e+08 0.027484490 0.087279627 -27.569492 38.275763 6772.1712 1.0090116e+08 0.023852854 0.092145717 -27.625473 38.191790 6774.1774 95907689. 0.020206759 0.097011807 -27.681454 38.107817 6776.1837 91164749. 0.016563545 0.10187790 -27.738393 38.020570 6778.1900 88794555. 0.012950154 0.10674399 -27.797446 37.926087 6780.1962 87031137. 0.0093479148 0.11161008 -27.856499 37.831603 6782.2025 85567031. 0.0057553611 0.11647617 -27.918582 37.734093 6784.2088 84362336. 0.0021686195 0.12134226 -27.981563 37.635686 6786.2151 80413409. -0.0014676747 0.12620835 -28.044543 37.538188 6788.2213 76255630. -0.0051174023 0.13107444 -28.107523 37.443717 6790.2276 73308822. -0.0087513175 0.13594053 -28.170503 37.349246 6792.2339 71279675. -0.012376046 0.14080662 -28.236590 37.245456 6794.2401 70190747. -0.015987942 0.14567271 -28.304071 37.137489 6796.2464 67326292. -0.019678117 0.15053880 -28.367606 37.035832 6798.2527 62885724. -0.023473658 0.15540489 -28.426650 36.941361 6800.2590 61311266. -0.027224005 0.16027098 -28.485694 36.846890 6802.2652 59315814. -0.031075356 0.16513707 -28.544738 36.752418 6804.2715 58473497. -0.034990844 0.17000316 -28.603782 36.657947 6806.2778 57478216. -0.039102033 0.17486925 -28.662826 36.563476 6808.2840 54223111. -0.043755245 0.17973534 -28.721871 36.469007 6810.2903 53009051. -0.048921668 0.18460143 -28.780915 36.374537 6812.2966 50596821. -0.056496174 0.18946752 -28.839959 36.276736 6814.3029 48650184. -0.082783827 0.19433361 -28.899003 36.178330 6816.3091 47778796. -0.067825513 0.19919970 -28.960625 36.077000 6818.3154 46548226. -0.030861877 0.20406579 -29.028106 35.969031