# # 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 = 49.257379 km # Date (UTC) = 2013-12-17T10:38:30.990 # Date (julian) = 2456643.94341424 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6500.4303 5.6080748e+10 0.044561877 0.032412971 -40.887827 49.375852 6502.4196 5.3297677e+10 0.051564690 0.033012846 -40.978349 49.292579 6504.4090 5.0374624e+10 0.058811527 0.033612720 -41.072020 49.209317 6506.3983 4.7702143e+10 0.066445693 0.034212595 -41.165691 49.126054 6508.3876 4.5247487e+10 0.074540348 0.034812469 -41.257928 49.042792 6510.3769 4.2867142e+10 0.083094273 0.035412344 -41.344660 48.959529 6512.3662 4.0653018e+10 0.092148806 0.036012219 -41.431392 48.876265 6514.3556 3.8477982e+10 0.10167592 0.036612093 -41.519249 48.791877 6516.3449 3.6156510e+10 0.11158157 0.037211968 -41.609450 48.705145 6518.3342 3.3882394e+10 0.12194724 0.037811842 -41.699651 48.618413 6520.3235 3.1664987e+10 0.13275893 0.038411717 -41.788324 48.533209 6522.3129 2.9566866e+10 0.14316314 0.038999176 -41.875068 48.449935 6524.3022 2.7672961e+10 0.14934694 0.039534310 -41.961812 48.366662 6526.2915 2.5830633e+10 0.15443035 0.039973688 -42.048549 48.283395 6528.2808 2.4179676e+10 0.16007699 0.041665258 -42.135281 48.200131 6530.2701 2.2618267e+10 0.16506368 0.044206889 -42.222014 48.116867 6532.2595 2.1085136e+10 0.16924108 0.046900945 -42.316090 48.023910 6534.2488 1.9484680e+10 0.17138928 0.048014152 -42.413665 47.926335 6536.2381 1.7930612e+10 0.17181113 0.048003540 -42.509592 47.830408 6538.2274 1.6556261e+10 0.17290693 0.049267426 -42.592855 47.747145 6540.2167 1.5414714e+10 0.17261862 0.050956499 -42.676119 47.663881 6542.2061 1.4473038e+10 0.17036255 0.051080473 -42.759385 47.580615 6544.1954 1.3575363e+10 0.16842275 0.051802852 -42.842658 47.497342 6546.1847 1.2760899e+10 0.16658790 0.052616514 -42.925931 47.414069 6548.1740 1.1993404e+10 0.16563676 0.053719618 -43.009201 47.329583 6550.1634 1.1275027e+10 0.16468402 0.055026262 -43.092464 47.242851 6552.1527 1.0603204e+10 0.16346615 0.055548338 -43.175728 47.156118 6554.1420 9.9686827e+09 0.16161484 0.054835360 -43.257366 47.071010 6556.1313 9.3725775e+09 0.16001874 0.053993819 -43.337160 46.987747 6558.1206 8.8175051e+09 0.15883011 0.053136504 -43.416953 46.904484 6560.1100 8.3113167e+09 0.15709900 0.052175164 -43.496747 46.821221 6562.0993 7.8406741e+09 0.15498948 0.050785431 -43.576540 46.737959 6564.0886 7.4051389e+09 0.15258431 0.048731442 -43.656334 46.654697 6566.0779 7.0103183e+09 0.15085143 0.047138801 -43.736135 46.568985 6568.0672 6.6292134e+09 0.14978133 0.045709846 -43.815938 46.482242 6570.0566 6.2777656e+09 0.14861094 0.044894076 -43.895742 46.395498 6572.0459 5.9481942e+09 0.14697766 0.044203875 -43.975538 46.311613 6574.0352 5.6378120e+09 0.14459056 0.042838094 -44.055331 46.228350 6576.0245 5.3534000e+09 0.14240089 0.041343156 -44.135124 46.145086 6578.0139 5.0771362e+09 0.13995855 0.038627737 -44.211661 46.058566 6580.0032 4.8269966e+09 0.13739008 0.036517818 -44.287986 45.971834 6581.9925 4.5933533e+09 0.13500216 0.035296067 -44.365070 45.884710 6583.9818 4.3542391e+09 0.13301110 0.034524714 -44.454839 45.791038 6585.9711 4.1021548e+09 0.13153207 0.033194369 -44.544608 45.697367 6587.9605 3.8477325e+09 0.13066544 0.033371171 -44.626016 45.607126 6589.9498 3.6224084e+09 0.12914120 0.031161694 -44.698870 45.520394 6591.9391 3.4366455e+09 0.12704774 0.028142240 -44.771725 45.433661 6593.9284 3.2725244e+09 0.12505691 0.026239066 -44.846709 45.349045 6595.9177 3.1210704e+09 0.12264429 0.025718744 -44.923044 45.265770 6597.9071 2.9726371e+09 0.12102871 0.025436491 -44.999379 45.182496 6599.8964 2.8366129e+09 0.12024521 0.024983643 -45.073174 45.096698 6601.8857 2.7051329e+09 0.11976561 0.027462810 -45.146029 45.009966 6603.8750 2.5830786e+09 0.11827642 0.026145257 -45.218884 44.923233 6605.8644 2.4652273e+09 0.11782836 0.027390168 -45.294679 44.839441 6607.8537 2.3544334e+09 0.11572070 0.024021307 -45.371003 44.756177 6609.8430 2.2531146e+09 0.11270512 0.023956341 -45.447328 44.672914 6611.8323 2.1546115e+09 0.11004688 0.024427683 -45.520304 44.589652 6613.8216 2.0707790e+09 0.10871280 0.023875052 -45.593159 44.506389 6615.8110 1.9855303e+09 0.10685928 0.023276483 -45.666445 44.421944 6617.8003 1.8970403e+09 0.10571972 0.023704580 -45.744517 44.324355 6619.7896 1.7954183e+09 0.10467442 0.024716433 -45.822589 44.226765 6621.7789 1.6894229e+09 0.10318288 0.024831268 -45.897944 44.136636 6623.7682 1.6005074e+09 0.10106804 0.024776449 -45.970799 44.053373 6625.7576 1.5246386e+09 0.099794877 0.026301611 -46.043653 43.970109 6627.7469 1.4597808e+09 0.098034742 0.025605322 -46.114294 43.884631 6629.7362 1.3973580e+09 0.097011115 0.025975996 -46.183680 43.797899 6631.7255 1.3346748e+09 0.095533851 0.026004465 -46.253066 43.711167 6633.7149 1.2794222e+09 0.094322415 0.026277059 -46.322452 43.627058 6635.7042 1.2294537e+09 0.093015688 0.026505389 -46.391838 43.543796 6637.6935 1.1843881e+09 0.091946870 0.025821758 -46.461223 43.460534 6639.6828 1.1392419e+09 0.091500541 0.025384020 -46.538186 43.364769 6641.6721 1.0883899e+09 0.091768858 0.025150583 -46.616245 43.267193 6643.6615 1.0378254e+09 0.090959244 0.025292491 -46.690526 43.174071 6645.6508 9.8784739e+08 0.090027596 0.025756552 -46.756452 43.090796 6647.6401 9.4432682e+08 0.088976250 0.026774798 -46.822378 43.007522 6649.6294 9.0482199e+08 0.087974750 0.026766056 -46.889790 42.922763 6651.6187 8.7054623e+08 0.087323594 0.026958345 -46.959176 42.836031 6653.6081 8.4200234e+08 0.086559303 0.027836119 -47.028562 42.749299 6655.5974 8.1080406e+08 0.084875854 0.027857059 -47.100556 42.658772 6657.5867 7.7694589e+08 0.083160372 0.029581677 -47.174713 42.565100 6659.5760 7.3709548e+08 0.081632900 0.031714437 -47.248865 42.471433 6661.5654 7.0503361e+08 0.080089313 0.032822896 -47.314912 42.384591 6663.5547 6.7549244e+08 0.078662554 0.032329499 -47.380828 42.297858 6665.5440 6.4888215e+08 0.078193672 0.027655773 -47.446745 42.211480 6667.5333 6.2638059e+08 0.077378587 0.027299355 -47.512671 42.128205 6669.5226 6.0641244e+08 0.076319675 0.027818915 -47.578597 42.044931 6671.5120 5.8670580e+08 0.076201006 0.026872644 -47.645476 41.958506 6673.5013 5.6045458e+08 0.075775925 0.028208922 -47.715731 41.860931 6675.4906 5.3428828e+08 0.074137042 0.030738043 -47.785985 41.763356 6677.4799 5.0818435e+08 0.072760489 0.031675954 -47.853384 41.675201 6679.4692 4.9414848e+08 0.072499083 0.029880007 -47.919300 41.591939 6681.4586 4.8015250e+08 0.073324415 0.030009164 -47.985216 41.508677 6683.4479 4.5892656e+08 0.073768198 0.031844968 -48.054497 41.414312 6685.4372 4.3768656e+08 0.073500744 0.033166640 -48.124751 41.316737 6687.4265 4.1228361e+08 0.071707276 0.034105019 -48.193338 41.222218 6689.4159 3.9644919e+08 0.069348803 0.033641689 -48.255786 41.138954 6691.4052 3.8124113e+08 0.068415476 0.032905668 -48.318233 41.055690 6693.3945 3.6703785e+08 0.067537628 0.031468752 -48.383266 40.967687 6695.3838 3.5538060e+08 0.067059202 0.029788971 -48.453520 40.870112 6697.3731 3.4112199e+08 0.066365031 0.030138487 -48.523774 40.772537 6699.3625 3.2858205e+08 0.064936240 0.031255985 -48.588031 40.685959 6701.3518 3.1226276e+08 0.063178331 0.031925610 -48.650487 40.602685 6703.3411 2.9967491e+08 0.062993786 0.034528784 -48.712942 40.519411 6705.3304 2.8747743e+08 0.062937201 0.037256035 -48.778852 40.423452 6707.3197 2.7472818e+08 0.062424736 0.040141023 -48.845203 40.325876 6709.3091 2.6000131e+08 0.061567464 0.040935961 -48.910285 40.232951 6711.2984 2.5072013e+08 0.059652960 0.041031717 -48.972733 40.149688 6713.2877 2.4423444e+08 0.057593975 0.044727211 -49.035180 40.066426 6715.2770 2.3709292e+08 0.055701954 0.047661929 -49.099355 39.976831 6717.2664 2.3133537e+08 0.053692089 0.049857793 -49.165707 39.879256 6719.2557 2.1759458e+08 0.051730222 0.051126929 -49.232059 39.781681 6721.2450 2.0857451e+08 0.052052205 0.050377717 -49.298410 39.687541 6723.2343 1.9775986e+08 0.050798695 0.049499627 -49.364760 39.593868 6725.2236 1.9015272e+08 0.046680348 0.041436324 -49.428767 39.502400 6727.2130 1.8274225e+08 0.045203254 0.040676662 -49.487754 39.415656 6729.2023 1.7601281e+08 0.044648028 0.040910602 -49.546740 39.328912 6731.1916 1.7182882e+08 0.042847921 0.042131350 -49.607236 39.239147 6733.1809 1.6498153e+08 0.041661656 0.044906598 -49.669685 39.145475 6735.1702 1.6175144e+08 0.041878688 0.049474161 -49.732133 39.051803 6737.1596 1.5526766e+08 0.043247694 0.054643870 -49.797992 38.954720 6739.1489 1.4857041e+08 0.043658026 0.063008763 -49.864342 38.857145 6741.1382 1.4289848e+08 0.042328610 0.066152874 -49.929476 38.760787 6743.1275 1.3591337e+08 0.038726321 0.071907764 -49.991924 38.667114 6745.1169 1.3120935e+08 0.035746316 0.078616010 -50.054372 38.573441 6747.1062 1.2683279e+08 0.031085994 0.067324609 -50.111617 38.484972 6749.0955 1.2101261e+08 0.030905770 0.072251787 -50.167126 38.398240 6751.0848 1.1418134e+08 0.027980928 0.073747532 -50.222634 38.311508 6753.0741 1.0669346e+08 0.025274944 0.073217215 -50.284161 38.218757 6755.0635 1.0290797e+08 0.023526486 0.074577523 -50.346609 38.125086 6757.0528 1.0040915e+08 0.021058940 0.076579879 -50.409057 38.031414 6759.0421 1.0113383e+08 0.022213506 0.075830114 -50.471506 37.937741 6761.0314 99904294. 0.022712687 0.077970821 -50.533954 37.844067 6763.0207 96865584. 0.027862027 0.076500945 -50.596402 37.747495 6765.0101 94485674. 0.030196414 0.079533031 -50.658851 37.649919 6766.9994 88050985. 0.029984795 0.081974382 -50.721300 37.553048 6768.9887 83472410. 0.025373893 0.084413636 -50.783758 37.459363 6770.9780 76900159. 0.021506729 0.089251856 -50.846215 37.365677 6772.9674 74446258. 0.017767308 0.094076835 -50.906250 37.272000 6774.9567 73992634. 0.014043292 0.098901814 -50.964796 37.178327 6776.9460 71387984. 0.010013224 0.10372679 -51.023565 37.084431 6778.9353 70583669. 0.0058415634 0.10855177 -51.086013 36.986855 6780.9246 65604334. 0.00077764994 0.11337675 -51.148461 36.889280 6782.9140 62862868. -0.0051054153 0.11820173 -51.208978 36.793636 6784.9033 58368578. -0.014466944 0.12302671 -51.267524 36.699963 6786.8926 54187583. -0.051317748 0.12785169 -51.326070 36.606290 6788.8819 52279809. -0.028690995 0.13267667 -51.392417 36.495972 6790.8712 51661504. 0.027169448 0.13750165 -51.459326 36.384455