# # 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 = 48.232793 km # Date (UTC) = 2011-12-05T09:27:00.873 # Date (julian) = 2455900.89376010 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6505.7404 1.1775294e+11 0.070326767 0.034014219 -25.130947 50.227167 6507.7291 1.0286028e+11 0.078486220 0.034613911 -25.234410 50.131636 6509.7179 8.9850830e+10 0.086724605 0.035213603 -25.339759 50.037991 6511.7066 7.8997587e+10 0.095157833 0.035813295 -25.445109 49.944347 6513.6953 6.9953855e+10 0.10385155 0.036412987 -25.532680 49.857319 6515.6840 6.3157587e+10 0.11303772 0.037012679 -25.619386 49.770613 6517.6727 5.7720624e+10 0.12268321 0.037612371 -25.707128 49.683146 6519.6614 5.2655635e+10 0.13260157 0.038212062 -25.808574 49.585600 6521.6501 4.8043257e+10 0.14281966 0.038811754 -25.910021 49.488055 6523.6389 4.3663833e+10 0.14854250 0.039337454 -26.009488 49.390509 6525.6276 3.9586501e+10 0.15303631 0.039710590 -26.107034 49.292964 6527.6163 3.6066966e+10 0.15770012 0.041163909 -26.204579 49.195418 6529.6050 3.3037079e+10 0.16123913 0.043199515 -26.291887 49.108110 6531.5937 3.0695685e+10 0.16430882 0.046092856 -26.378593 49.021404 6533.5824 2.8768428e+10 0.16689338 0.047767108 -26.465963 48.934035 6535.5712 2.6812287e+10 0.16796604 0.047976531 -26.563523 48.836475 6537.5599 2.4846815e+10 0.16959453 0.048949182 -26.661083 48.738915 6539.5486 2.2930277e+10 0.17036832 0.050307682 -26.751502 48.646767 6541.5373 2.1388875e+10 0.16979834 0.051152285 -26.834740 48.560061 6543.5260 2.0098338e+10 0.16885185 0.051519950 -26.917979 48.473355 6545.5147 1.8893271e+10 0.16762156 0.052460179 -27.010020 48.379979 6547.5035 1.7671932e+10 0.16632634 0.053478818 -27.107565 48.282434 6549.4922 1.6418766e+10 0.16473654 0.054467838 -27.204702 48.184889 6551.4809 1.5206870e+10 0.16335082 0.055404548 -27.294444 48.087343 6553.4696 1.4005136e+10 0.16197188 0.055099006 -27.384186 47.989797 6555.4583 1.2950714e+10 0.16058375 0.054468271 -27.470744 47.897557 6557.4470 1.2118399e+10 0.15915714 0.053585908 -27.553981 47.810852 6559.4357 1.1459231e+10 0.15716152 0.052337998 -27.637219 47.724146 6561.4245 1.0865618e+10 0.15501844 0.051163516 -27.724399 47.630869 6563.4132 1.0181603e+10 0.15313966 0.049450417 -27.814141 47.533324 6565.4019 9.4897137e+09 0.15162250 0.047862043 -27.903452 47.436246 6567.3906 8.8909883e+09 0.15037745 0.046286919 -27.983231 47.349529 6569.3793 8.4245058e+09 0.14896922 0.044877113 -28.063011 47.262812 6571.3680 8.0221203e+09 0.14774369 0.044402757 -28.144388 47.174359 6573.3568 7.6219490e+09 0.14609638 0.043371195 -28.234130 47.076813 6575.3455 7.2043563e+09 0.14431509 0.042028093 -28.323873 46.979268 6577.3342 6.7793925e+09 0.14222706 0.039695448 -28.411284 46.881722 6579.3229 6.3632599e+09 0.13965872 0.036892985 -28.497124 46.784176 6581.3116 5.9735455e+09 0.13737360 0.035502247 -28.582634 46.687005 6583.3003 5.6345737e+09 0.13525832 0.034869652 -28.658935 46.600299 6585.2890 5.3643661e+09 0.13290330 0.033739686 -28.735236 46.513594 6587.2778 5.1411994e+09 0.13076352 0.033219911 -28.812979 46.425249 6589.2665 4.9112524e+09 0.12876403 0.032517307 -28.898820 46.327703 6591.2552 4.6596286e+09 0.12668471 0.028913952 -28.984661 46.230157 6593.2439 4.4122279e+09 0.12506441 0.026875458 -29.064895 46.138982 6595.2326 4.2013665e+09 0.12299917 0.025647695 -29.141206 46.052265 6597.2213 4.0256058e+09 0.12085159 0.025652880 -29.217517 45.965548 6599.2101 3.8523168e+09 0.11933684 0.024942364 -29.297797 45.871192 6601.1988 3.6695935e+09 0.11936492 0.027139300 -29.379736 45.773646 6603.1875 3.4811858e+09 0.11842473 0.026552281 -29.461675 45.676101 6605.1762 3.2953553e+09 0.11787157 0.026812864 -29.543613 45.578555 6607.1649 3.1207829e+09 0.11660929 0.025381341 -29.625551 45.481010 6609.1536 2.9599202e+09 0.11372297 0.023751568 -29.702212 45.389747 6611.1424 2.8321476e+09 0.11089088 0.024867678 -29.775045 45.303041 6613.1311 2.7209265e+09 0.10973966 0.023621679 -29.847878 45.216335 6615.1198 2.6155971e+09 0.10825237 0.023255217 -29.924334 45.122082 6617.1085 2.5053286e+09 0.10669390 0.023475221 -30.002370 45.024536 6619.0972 2.3859175e+09 0.10570980 0.024549370 -30.080926 44.926471 6621.0859 2.2691337e+09 0.10461475 0.025060965 -30.162865 44.825024 6623.0746 2.1523674e+09 0.10290466 0.024519481 -30.244804 44.723577 6625.0634 2.0473210e+09 0.10120454 0.025473212 -30.319575 44.630532 6627.0521 1.9623554e+09 0.098646474 0.025336926 -30.388948 44.543815 6629.0408 1.8881014e+09 0.097088816 0.026101730 -30.458322 44.457098 6631.0295 1.8213424e+09 0.095050111 0.025933763 -30.533651 44.362936 6633.0182 1.7432711e+09 0.093745767 0.026155435 -30.611688 44.265391 6635.0069 1.6581658e+09 0.092515529 0.026400828 -30.689724 44.167845 6636.9957 1.5732875e+09 0.091277898 0.026163100 -30.767760 44.070300 6638.9844 1.4898263e+09 0.090445307 0.025628756 -30.845796 43.972754 6640.9731 1.4220687e+09 0.091207853 0.025151594 -30.917014 43.881297 6642.9618 1.3647632e+09 0.090864272 0.025191055 -30.982910 43.794591 6644.9505 1.3145982e+09 0.089876608 0.025446336 -31.048807 43.707885 6646.9392 1.2688483e+09 0.088647792 0.026406324 -31.120293 43.613826 6648.9279 1.2197508e+09 0.087408224 0.027585455 -31.194427 43.516280 6650.9167 1.1674416e+09 0.087001323 0.026465087 -31.269013 43.418735 6652.9054 1.1205356e+09 0.086524234 0.027499627 -31.347049 43.321189 6654.8941 1.0712572e+09 0.085306547 0.027655333 -31.425085 43.223644 6656.8828 1.0224243e+09 0.083369508 0.028798254 -31.498809 43.123942 6658.8715 9.6771914e+08 0.081846647 0.031606745 -31.569042 43.022493 6660.8602 9.1655720e+08 0.080542655 0.032407915 -31.639266 42.921074 6662.8490 8.7612596e+08 0.079253665 0.032567957 -31.705225 42.834176 6664.8377 8.4823153e+08 0.078262288 0.029141084 -31.771130 42.747458 6666.8264 8.2576203e+08 0.077629969 0.027069627 -31.837914 42.659584 6668.8151 7.9874983e+08 0.076212759 0.028192082 -31.912049 42.562039 6670.8038 7.6610452e+08 0.075970770 0.026956236 -31.986184 42.464493 6672.7925 7.2807618e+08 0.075443008 0.027338966 -32.058197 42.366948 6674.7812 6.9587163e+08 0.073995715 0.029613826 -32.128430 42.269402 6676.7700 6.6748274e+08 0.071837835 0.032209962 -32.198662 42.171857 6678.7587 6.4457164e+08 0.071179832 0.030429176 -32.268895 42.074311 6680.7474 6.2079102e+08 0.072069837 0.029602811 -32.339128 41.976766 6682.7361 5.9521833e+08 0.072749648 0.030986960 -32.409361 41.879221 6684.7248 5.7017042e+08 0.072758976 0.032690874 -32.479594 41.781675 6686.7135 5.4579355e+08 0.071554712 0.034176235 -32.549827 41.684130 6688.7023 5.2324629e+08 0.069070707 0.033947295 -32.620060 41.586584 6690.6910 5.0120529e+08 0.068033187 0.033036677 -32.690293 41.489038 6692.6797 4.8069659e+08 0.067267879 0.031976046 -32.759386 41.391492 6694.6684 4.5931575e+08 0.066667199 0.030324222 -32.825716 41.293946 6696.6571 4.3848873e+08 0.066387440 0.029948806 -32.892046 41.196401 6698.6458 4.1992786e+08 0.065411645 0.031104302 -32.953007 41.104223 6700.6346 4.0601238e+08 0.063829740 0.031138383 -33.011976 41.014038 6702.6233 3.9454559e+08 0.063071705 0.033374412 -33.070944 40.923853 6704.6120 3.7997567e+08 0.063329479 0.036478069 -33.139445 40.827438 6706.6007 3.6568157e+08 0.063148983 0.039491873 -33.209677 40.729892 6708.5894 3.5122913e+08 0.062756754 0.040685429 -33.278803 40.632347 6710.5781 3.4108862e+08 0.061396729 0.040609657 -33.345135 40.534801 6712.5668 3.2907516e+08 0.059529059 0.042882401 -33.411467 40.437254 6714.5556 3.1529550e+08 0.057662288 0.047345176 -33.474987 40.339709 6716.5443 3.0107715e+08 0.055986855 0.049203029 -33.537416 40.242163 6718.5330 2.8644066e+08 0.054022499 0.050642509 -33.600460 40.144618 6720.5217 2.7384146e+08 0.053920373 0.050359317 -33.666790 40.047072 6722.5104 2.6026658e+08 0.053678396 0.049974188 -33.733120 39.949527 6724.4991 2.4985289e+08 0.050862827 0.045758531 -33.799451 39.851981 6726.4879 2.4430367e+08 0.048322674 0.040955767 -33.865783 39.754436 6728.4766 2.3515633e+08 0.048030308 0.040303556 -33.931990 39.656890 6730.4653 2.2673983e+08 0.046695581 0.041016866 -33.994419 39.559345 6732.4540 2.1549651e+08 0.045494665 0.043823789 -34.056848 39.461800 6734.4427 2.0132230e+08 0.045170128 0.049326963 -34.123461 39.357717 6736.4314 1.9270597e+08 0.046855416 0.051986062 -34.194810 39.246234 6738.4201 1.8025631e+08 0.047940967 0.059634199 -34.264139 39.137907 6740.4089 1.7265602e+08 0.047415125 0.064748835 -34.326569 39.040361 6742.3976 1.6641919e+08 0.044838773 0.069579527 -34.388998 38.942816 6744.3863 1.5744768e+08 0.040832272 0.078092201 -34.451427 38.845270 6746.3750 1.5193130e+08 0.038431877 0.074627363 -34.513856 38.747725 6748.3637 1.5069144e+08 0.035759733 0.068930474 -34.576286 38.650178 6750.3524 1.4579697e+08 0.032885797 0.072605940 -34.638724 38.552618 6752.3412 1.3800932e+08 0.030026599 0.073739694 -34.701162 38.455058 6754.3299 1.3014907e+08 0.028638331 0.075682995 -34.761496 38.357506 6756.3186 1.2181647e+08 0.026009223 0.074986684 -34.820024 38.259960 6758.3073 1.1710313e+08 0.025650146 0.074355157 -34.878552 38.162415 6760.2960 1.1325163e+08 0.025848626 0.076625767 -34.949584 38.051276 6762.2847 1.0870524e+08 0.029576375 0.077591544 -35.020934 37.939792 6764.2735 1.0757504e+08 0.031995533 0.079496386 -35.082887 37.838522 6766.2622 1.0771249e+08 0.032919994 0.080306772 -35.141413 37.740977 6768.2509 1.0206807e+08 0.029385408 0.081758757 -35.199940 37.643431 6770.2396 95220221. 0.024882457 0.087460829 -35.258468 37.545886 6772.2283 91017327. 0.020932276 0.092284339 -35.316996 37.448340 6774.2170 88439536. 0.017018879 0.097107849 -35.380599 37.342335 6776.2057 87718885. 0.013177088 0.10193136 -35.447490 37.230852 6778.1945 86264575. 0.0093077210 0.10675487 -35.511332 37.124449 6780.1832 79940123. 0.0051623260 0.11157838 -35.569859 37.026903 6782.1719 75818713. 0.0010506303 0.11640189 -35.628385 36.929357 6784.1606 73647809. -0.0030148143 0.12122540 -35.686913 36.831811 6786.1493 73242414. -0.0070478180 0.12604891 -35.745441 36.734266 6788.1380 71955960. -0.011348720 0.13087242 -35.804900 36.633394 6790.1268 68036212. -0.016368081 0.13569593 -35.867330 36.521911 6792.1155 66407007. -0.021998264 0.14051944 -35.929748 36.410472 6794.1042 63861262. -0.030481098 0.14534295 -35.988303 36.312829 6796.0929 62507344. -0.062528498 0.15016645 -36.046831 36.215284 6798.0816 59002159. -0.042293207 0.15498996 -36.107050 36.111700 6800.0703 54220808. 0.010341158 0.15981347 -36.169480 36.000217