# # 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 = 49.387277 km # Date (UTC) = 2013-12-13T09:05:59.267 # Date (julian) = 2456639.87915819 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6502.8430 5.1776240e+10 0.054436928 0.033140504 -17.538266 50.231542 6504.9424 4.8588701e+10 0.062220320 0.033773585 -17.637135 50.143658 6507.0419 4.5581518e+10 0.070295680 0.034406666 -17.736001 50.055776 6509.1413 4.2775699e+10 0.078737560 0.035039747 -17.834857 49.967905 6511.2408 4.0213751e+10 0.087624443 0.035672829 -17.933713 49.880034 6513.3402 3.7896657e+10 0.096996648 0.036305910 -18.030993 49.792162 6515.4396 3.5877750e+10 0.10692638 0.036938991 -18.126188 49.704289 6517.5391 3.3974281e+10 0.11736775 0.037572072 -18.221383 49.616416 6519.6385 3.1880074e+10 0.12814303 0.038205153 -18.324901 49.520861 6521.7380 2.9491279e+10 0.13912418 0.038838234 -18.431996 49.422003 6523.8374 2.7039450e+10 0.14503963 0.039386661 -18.535863 49.326126 6525.9368 2.4800198e+10 0.14956370 0.039675295 -18.631070 49.238243 6528.0363 2.2956459e+10 0.15526805 0.041471270 -18.726277 49.150360 6530.1357 2.1419998e+10 0.16003454 0.044018713 -18.821478 49.062483 6532.2352 2.0002118e+10 0.16387759 0.046880650 -18.916672 48.974610 6534.3346 1.8661329e+10 0.16615123 0.048038161 -19.011867 48.886738 6536.4341 1.7373561e+10 0.16735970 0.048178859 -19.104098 48.795902 6538.5335 1.6170809e+10 0.16927053 0.049416465 -19.195631 48.704368 6540.6329 1.5057397e+10 0.16996731 0.051153118 -19.287164 48.613122 6542.7324 1.4060669e+10 0.16916429 0.051280289 -19.378698 48.525251 6544.8318 1.3161744e+10 0.16812511 0.052319136 -19.470231 48.437379 6546.9313 1.2319857e+10 0.16631956 0.053230804 -19.560498 48.349504 6549.0307 1.1526383e+10 0.16422660 0.053997569 -19.648381 48.261619 6551.1301 1.0796756e+10 0.16293880 0.055281434 -19.736265 48.173735 6553.2296 1.0134340e+10 0.16189870 0.055219657 -19.826397 48.085859 6555.3290 9.5782045e+09 0.16039258 0.054576903 -19.917931 47.997988 6557.4285 9.0623511e+09 0.15878070 0.053597541 -20.009464 47.910116 6559.5279 8.5238060e+09 0.15676351 0.052327595 -20.107478 47.808879 6561.6274 7.9611916e+09 0.15463085 0.051063535 -20.206336 47.705902 6563.7268 7.3886469e+09 0.15250921 0.049087633 -20.298497 47.609830 6565.8262 6.8959890e+09 0.15086559 0.047380195 -20.382708 47.521958 6567.9257 6.4912795e+09 0.14985163 0.045834503 -20.466918 47.434085 6570.0251 6.1381013e+09 0.14884314 0.044907104 -20.553787 47.346212 6572.1246 5.8122496e+09 0.14740305 0.044158823 -20.641659 47.258340 6574.2240 5.5079855e+09 0.14529359 0.042747418 -20.729515 47.170452 6576.3234 5.2088898e+09 0.14332252 0.040999102 -20.813772 47.078941 6578.4229 4.9177809e+09 0.14096749 0.037981828 -20.897993 46.987396 6580.5223 4.6498124e+09 0.13855572 0.036038047 -20.982212 46.896820 6582.6218 4.4046116e+09 0.13630126 0.035124594 -21.066423 46.808948 6584.7212 4.1851208e+09 0.13373618 0.034122640 -21.150634 46.721077 6586.8207 3.9830690e+09 0.13122875 0.033160688 -21.234845 46.633205 6588.9201 3.7911162e+09 0.12906297 0.033072662 -21.319056 46.545333 6591.0195 3.6116769e+09 0.12668613 0.029179866 -21.403266 46.457460 6593.1190 3.4250327e+09 0.12500212 0.026991608 -21.492612 46.357485 6595.2184 3.2223417e+09 0.12297468 0.025646222 -21.583231 46.254508 6597.3179 3.0260891e+09 0.12096981 0.025622422 -21.670093 46.157170 6599.4173 2.8414949e+09 0.11989010 0.024954829 -21.750653 46.069287 6601.5167 2.6941813e+09 0.11987539 0.027289047 -21.831214 45.981404 6603.6162 2.5645423e+09 0.11868814 0.026298493 -21.911767 45.893528 6605.7156 2.4377050e+09 0.11830485 0.027265398 -21.992316 45.805655 6607.8151 2.3233162e+09 0.11636956 0.024097540 -22.072865 45.717783 6609.9145 2.2090875e+09 0.11348186 0.023977584 -22.153414 45.626574 6612.0140 2.1171772e+09 0.11094391 0.024310326 -22.233963 45.535040 6614.1134 2.0270723e+09 0.10976559 0.023862368 -22.315585 45.442187 6616.2128 1.9238668e+09 0.10813295 0.023315703 -22.402085 45.343331 6618.3123 1.8192635e+09 0.10737312 0.024006603 -22.488586 45.244474 6620.4117 1.7119851e+09 0.10651049 0.024899874 -22.567854 45.151128 6622.5112 1.6252427e+09 0.10490770 0.024621939 -22.644741 45.059594 6624.6106 1.5512475e+09 0.10293186 0.025189162 -22.721629 44.968138 6626.7100 1.4812938e+09 0.10075774 0.025686241 -22.798528 44.880254 6628.8095 1.4230332e+09 0.098983660 0.026031754 -22.875426 44.792370 6630.9089 1.3611382e+09 0.096794469 0.025930542 -22.952322 44.703427 6633.0084 1.3065849e+09 0.094971531 0.026153714 -23.029209 44.611893 6635.1078 1.2555921e+09 0.093143696 0.026415955 -23.106097 44.520360 6637.2073 1.2032916e+09 0.091578378 0.026059906 -23.186056 44.424732 6639.3067 1.1511791e+09 0.090852138 0.025518455 -23.268438 44.325875 6641.4061 1.0883269e+09 0.091564958 0.025149680 -23.349618 44.227980 6643.5056 1.0310424e+09 0.091029501 0.025268954 -23.422844 44.136447 6645.6050 9.8379055e+08 0.090128257 0.025735113 -23.496071 44.044914 6647.7045 9.4507404e+08 0.089096204 0.026808682 -23.569302 43.954840 6649.8039 9.1134423e+08 0.088187306 0.026525547 -23.642537 43.866956 6651.9033 8.7557578e+08 0.087581429 0.027176448 -23.715773 43.779072 6654.0028 8.3736370e+08 0.086850241 0.028035039 -23.795130 43.683844 6656.1022 7.9525927e+08 0.085075505 0.028113143 -23.877511 43.584986 6658.2017 7.5272603e+08 0.083639481 0.030418744 -23.957682 43.487896 6660.3011 7.1685017e+08 0.082158853 0.031899693 -24.030908 43.396363 6662.4006 6.8991989e+08 0.080599831 0.032819538 -24.104134 43.304830 6664.5000 6.6195262e+08 0.079419247 0.030376630 -24.179930 43.209560 6666.5994 6.3065694e+08 0.079111428 0.027025403 -24.258193 43.110703 6668.6989 5.9787743e+08 0.077892784 0.028089231 -24.335738 43.012450 6670.7983 5.6820922e+08 0.077655645 0.026958784 -24.405304 42.920917 6672.8978 5.4570440e+08 0.077072582 0.027399958 -24.474869 42.829384 6674.9972 5.2576646e+08 0.075341448 0.029795997 -24.547489 42.735278 6677.0966 5.0164836e+08 0.072998814 0.032220828 -24.625751 42.636419 6679.1961 4.7467416e+08 0.072381506 0.030105735 -24.704012 42.537561 6681.2955 4.4950138e+08 0.073317992 0.029884083 -24.774251 42.445456 6683.3950 4.2739884e+08 0.073823388 0.031767413 -24.843826 42.353911 6685.4944 4.1222005e+08 0.073575143 0.033227057 -24.915074 42.260957 6687.5939 3.9715271e+08 0.071643320 0.034011703 -24.993337 42.162100 6689.6933 3.8060409e+08 0.069556969 0.033391948 -25.071600 42.063243 6691.7927 3.6331507e+08 0.068695169 0.032814229 -25.140410 41.969988 6693.8922 3.4945146e+08 0.067833557 0.031298017 -25.206314 41.878455 6695.9916 3.3588851e+08 0.067782855 0.029677325 -25.272495 41.786675 6698.0911 3.2251329e+08 0.067032155 0.030342809 -25.346638 41.687817 6700.1905 3.1029730e+08 0.065477729 0.030809020 -25.420781 41.588959 6702.2899 2.9245200e+08 0.064272525 0.033108252 -25.489932 41.494539 6704.3894 2.8068113e+08 0.064610920 0.036368762 -25.555835 41.403006 6706.4888 2.7064561e+08 0.064447536 0.039297170 -25.621738 41.311473 6708.5883 2.5913204e+08 0.063998833 0.040684183 -25.694849 41.213533 6710.6877 2.5206243e+08 0.062452245 0.040631106 -25.768993 41.114676 6712.7872 2.4217309e+08 0.060448199 0.043291438 -25.843141 41.015812 6714.8866 2.2917120e+08 0.058503161 0.047370063 -25.917296 40.916939 6716.9860 2.1880065e+08 0.056483095 0.049853701 -25.991217 40.818210 6719.0855 2.1048984e+08 0.054165488 0.051288629 -26.053460 40.726676 6721.1849 2.0346135e+08 0.054488498 0.050359616 -26.115702 40.635143 6723.2844 1.9962695e+08 0.053044087 0.049527537 -26.181376 40.541499 6725.3838 1.9152561e+08 0.048819516 0.041336277 -26.255519 40.442642 6727.4832 1.8235182e+08 0.047503477 0.040316566 -26.329662 40.343785 6729.5827 1.7406678e+08 0.046609041 0.040657052 -26.400261 40.241383 6731.6821 1.6587353e+08 0.044838504 0.043107585 -26.470285 40.138407 6733.7816 1.5900880e+08 0.043700327 0.048167675 -26.540309 40.037213 6735.8810 1.5203395e+08 0.045001025 0.050228690 -26.610334 39.938354 6737.9805 1.4524302e+08 0.046166662 0.057258821 -26.680322 39.839459 6740.0799 1.3887714e+08 0.045795102 0.064186847 -26.746242 39.736498 6742.1793 1.3460060e+08 0.043259143 0.069047736 -26.812147 39.633521 6744.2788 1.3317189e+08 0.038674674 0.078009039 -26.875942 39.539258 6746.3782 1.2789119e+08 0.036077613 0.074590057 -26.938193 39.451374 6748.4777 1.2151234e+08 0.033371742 0.069529890 -27.000444 39.363490 6750.5771 1.1635862e+08 0.030354100 0.072989557 -27.069275 39.266318 6752.6765 1.1279983e+08 0.027359257 0.073351588 -27.139299 39.167461 6754.7760 1.1065007e+08 0.025576541 0.074965589 -27.207598 39.066879 6756.8754 1.0451865e+08 0.022596592 0.076419513 -27.273503 38.963902 6758.9749 1.0107670e+08 0.023173467 0.075766812 -27.339409 38.860929 6761.0743 96937995. 0.023419793 0.077974364 -27.405314 38.762030 6763.1738 95020262. 0.028299611 0.076966931 -27.471218 38.663172 6765.2732 89736613. 0.030156291 0.079581066 -27.537123 38.561994 6767.3726 81525690. 0.028539792 0.081558510 -27.603028 38.459017 6769.4721 77739522. 0.023448913 0.085599256 -27.668933 38.356599 6771.5715 74103538. 0.019143975 0.090691325 -27.734838 38.257742 6773.6710 75293689. 0.015138734 0.095783394 -27.800743 38.158886 6775.7704 74431316. 0.010891458 0.10087546 -27.866648 38.060028 6777.8698 70840040. 0.0061801260 0.10596753 -27.932553 37.961170 6779.9693 66741760. 0.00090028123 0.11105960 -27.999777 37.857037 6782.0687 62395836. -0.0055043143 0.11615167 -28.070391 37.739346 6784.1682 60091027. -0.014681207 0.12124374 -28.140271 37.624591 6786.2676 58165683. -0.050177091 0.12633581 -28.206177 37.525735 6788.3671 55317900. -0.027974959 0.13142788 -28.272083 37.426878 6790.4665 51601252. 0.029535454 0.13651995 -28.334989 37.328020