# # 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 = 44.870642 km # Date (UTC) = 2016-01-22T08:25:48.018 # Date (julian) = 2457409.85125021 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6504.4527 8.4095424e+10 0.069171746 0.033625909 -2.6559034 55.508787 6506.1600 7.2627472e+10 0.076883914 0.034140744 -2.7943656 55.397124 6507.8673 6.2886644e+10 0.084631307 0.034655579 -2.9267083 55.289212 6509.5746 5.5374608e+10 0.092612785 0.035170414 -3.0453863 55.189677 6511.2819 5.1057447e+10 0.10130440 0.035685249 -3.1640642 55.090141 6512.9893 4.7955826e+10 0.11041292 0.036200085 -3.2965353 54.982150 6514.6966 4.5055596e+10 0.11968530 0.036714920 -3.4349968 54.870488 6516.4039 4.2118441e+10 0.12905190 0.037229755 -3.5608824 54.764382 6518.1112 3.8920737e+10 0.13841051 0.037744590 -3.6719041 54.664845 6519.8185 3.6095890e+10 0.14793681 0.038259425 -3.7829258 54.565307 6521.5258 3.3516361e+10 0.15757601 0.038774261 -3.8971867 54.469010 6523.2331 3.1213364e+10 0.16384561 0.039236892 -4.0120363 54.373302 6524.9404 2.9348100e+10 0.16961554 0.039761054 -4.1303163 54.272819 6526.6477 2.7365231e+10 0.17295386 0.040347172 -4.2598195 54.156714 6528.3551 2.5439183e+10 0.17621462 0.041724150 -4.3892447 54.040666 6530.0624 2.3544621e+10 0.17967921 0.043916010 -4.4966325 53.940984 6531.7697 2.1788785e+10 0.18135572 0.046348956 -4.6038256 53.841447 6533.4770 2.0327194e+10 0.18221176 0.047722294 -4.7110186 53.741910 6535.1843 1.9116938e+10 0.18232809 0.048144347 -4.8182115 53.642375 6536.8916 1.8026645e+10 0.18141608 0.048588250 -4.9254044 53.542839 6538.5989 1.6860662e+10 0.18009730 0.049448325 -5.0463668 53.433959 6540.3062 1.5644093e+10 0.17918837 0.050998776 -5.1714295 53.322296 6542.0135 1.4400433e+10 0.17692898 0.051007381 -5.2869914 53.217079 6543.7209 1.3327414e+10 0.17478919 0.051571086 -5.3941845 53.117542 6545.4282 1.2468932e+10 0.17322583 0.052459403 -5.5013776 53.018005 6547.1355 1.1688560e+10 0.17168460 0.053338885 -5.6015298 52.918469 6548.8428 1.0962053e+10 0.16939957 0.053919332 -5.7010660 52.818934 6550.5501 1.0267937e+10 0.16805215 0.055123101 -5.8017794 52.719398 6552.2574 9.6497574e+09 0.16657078 0.055521975 -5.9051445 52.619862 6553.9647 9.0688917e+09 0.16410459 0.054850112 -6.0085095 52.520326 6555.6720 8.4891933e+09 0.16219090 0.054288693 -6.1207500 52.409251 6557.3793 7.8935290e+09 0.16038311 0.053628330 -6.2368792 52.293121 6559.0867 7.2853580e+09 0.15773266 0.052377400 -6.3454344 52.184566 6560.7940 6.7534743e+09 0.15520932 0.051558442 -6.4449707 52.085030 6562.5013 6.2888693e+09 0.15296207 0.050402915 -6.5445069 51.985494 6564.2086 5.8901167e+09 0.15003783 0.048677063 -6.6440436 51.885957 6565.9159 5.5357809e+09 0.14752816 0.047278375 -6.7435804 51.786419 6567.6232 5.2236500e+09 0.14563260 0.046090242 -6.8422280 51.686882 6569.3305 4.9369919e+09 0.14320683 0.044873937 -6.9379360 51.587347 6571.0378 4.6692966e+09 0.14093852 0.044492941 -7.0336441 51.487811 6572.7452 4.4019744e+09 0.13875220 0.043803428 -7.1269780 51.388274 6574.4525 4.1619888e+09 0.13615926 0.042637689 -7.2188576 51.288737 6576.1598 3.9555422e+09 0.13376706 0.041187492 -7.3107762 51.189200 6577.8671 3.7692603e+09 0.13175184 0.038858394 -7.4064763 51.089664 6579.5744 3.6023948e+09 0.12950036 0.036754727 -7.5021847 50.990128 6581.2817 3.4265552e+09 0.12740215 0.035511304 -7.5963772 50.889076 6582.9890 3.2776610e+09 0.12581089 0.035024655 -7.6882571 50.785711 6584.6963 3.1481008e+09 0.12385400 0.034136194 -7.7801369 50.682346 6586.4036 3.0107448e+09 0.12184021 0.033166078 -7.8840220 50.568977 6588.1110 2.8460557e+09 0.12046871 0.033342878 -7.9912184 50.452848 6589.8183 2.6858954e+09 0.11864373 0.031422618 -8.0879821 50.345760 6591.5256 2.5416265e+09 0.11632385 0.028608861 -8.1760337 50.246223 6593.2329 2.4296269e+09 0.11427598 0.026885708 -8.2640853 50.146686 6594.9402 2.3287072e+09 0.11202081 0.025656400 -8.3521365 50.047150 6596.6475 2.2153501e+09 0.10946114 0.025724330 -8.4401878 49.947615 6598.3548 2.1040325e+09 0.10765380 0.025237762 -8.5282391 49.848078 6600.0621 1.9988645e+09 0.10694125 0.025117604 -8.6162906 49.748541 6601.7694 1.9107482e+09 0.10606654 0.027408053 -8.7043421 49.649003 6603.4768 1.8246982e+09 0.10454728 0.026381037 -8.7923937 49.546754 6605.1841 1.7491666e+09 0.10368983 0.026819459 -8.8804453 49.443389 6606.8914 1.6743782e+09 0.10221825 0.025902189 -8.9681261 49.340395 6608.5987 1.5976445e+09 0.099433283 0.023716542 -9.0523351 49.240876 6610.3060 1.5323061e+09 0.096757343 0.024295353 -9.1365442 49.141357 6612.0133 1.4638816e+09 0.094808382 0.024310807 -9.2207599 49.041830 6613.7206 1.4021508e+09 0.094095044 0.023837988 -9.3049827 48.942294 6615.4279 1.3401397e+09 0.093224310 0.023264698 -9.3892055 48.842758 6617.1352 1.2788387e+09 0.092536482 0.023484089 -9.4734286 48.743221 6618.8426 1.2311667e+09 0.092123870 0.024407025 -9.5576518 48.643684 6620.5499 1.1852694e+09 0.091734041 0.024944391 -9.6408807 48.543153 6622.2572 1.1379408e+09 0.090843903 0.024689540 -9.7212758 48.439788 6623.9645 1.0878386e+09 0.089422560 0.024849154 -9.8016708 48.336422 6625.6718 1.0356471e+09 0.088852201 0.026199263 -9.8820657 48.235537 6627.3791 9.9142068e+08 0.087315915 0.025463255 -9.9624604 48.136002 6629.0864 9.5528609e+08 0.086455910 0.026093479 -10.042855 48.036466 6630.7937 9.1439980e+08 0.085209957 0.025930258 -10.123250 47.936929 6632.5010 8.7305379e+08 0.084178953 0.026092425 -10.203645 47.837391 6634.2084 8.2949068e+08 0.083054624 0.026342041 -10.284039 47.736234 6635.9157 7.8574189e+08 0.081969304 0.026537106 -10.364434 47.632869 6637.6230 7.5272902e+08 0.081140145 0.025856296 -10.444829 47.529504 6639.3303 7.2134149e+08 0.080501491 0.025510022 -10.522118 47.429245 6641.0376 6.8547717e+08 0.081042254 0.025148428 -10.598685 47.329709 6642.7449 6.4917224e+08 0.080797817 0.025182180 -10.675252 47.230172 6644.4522 6.1639538e+08 0.079925955 0.025392482 -10.751818 47.130637 6646.1595 5.8806717e+08 0.079020515 0.026002728 -10.828385 47.031101 6647.8668 5.5997280e+08 0.078276931 0.026894179 -10.904951 46.929317 6649.5742 5.3187324e+08 0.077581906 0.026842239 -10.981518 46.825952 6651.2815 5.0257765e+08 0.077426945 0.026699871 -11.058085 46.722588 6652.9888 4.8201313e+08 0.077405356 0.027522575 -11.134651 46.622955 6654.6961 4.6433839e+08 0.076688761 0.027739684 -11.211217 46.523417 6656.4034 4.4472266e+08 0.075400385 0.028377483 -11.286395 46.422491 6658.1107 4.2928036e+08 0.074520898 0.030257434 -11.359132 46.319126 6659.8180 4.1610318e+08 0.073532107 0.031663957 -11.431870 46.215762 6661.5253 4.0070761e+08 0.072525863 0.032802515 -11.504609 46.115271 6663.2326 3.8723335e+08 0.071758299 0.032418740 -11.577348 46.015735 6664.9400 3.7267939e+08 0.071520333 0.028766814 -11.650087 45.916198 6666.6473 3.5790338e+08 0.071412836 0.027034724 -11.722824 45.816661 6668.3546 3.4912246e+08 0.070699634 0.027784555 -11.795562 45.717124 6670.0619 3.3272561e+08 0.070613856 0.027299958 -11.868301 45.615572 6671.7692 3.1994083e+08 0.070513889 0.026876310 -11.941039 45.512208 6673.4765 3.0695090e+08 0.070147126 0.028171883 -12.013777 45.408845 6675.1838 2.9694168e+08 0.068808408 0.030150455 -12.086515 45.308980 6676.8911 2.9098951e+08 0.067013757 0.032288058 -12.159253 45.209443 6678.5985 2.8798950e+08 0.066420795 0.030536345 -12.230834 45.108749 6680.3058 2.8288587e+08 0.066913614 0.029507443 -12.299744 45.005384 6682.0131 2.7537841e+08 0.067402675 0.030434531 -12.368654 44.902019 6683.7204 2.6234614e+08 0.067617920 0.032244312 -12.437563 44.801297 6685.4277 2.5046268e+08 0.067312093 0.033156590 -12.506473 44.701762 6687.1350 2.4750396e+08 0.065598712 0.034267605 -12.575382 44.602226 6688.8423 2.4260958e+08 0.063218578 0.033979626 -12.644293 44.502688 6690.5496 2.4069577e+08 0.062302982 0.033052876 -12.713203 44.403150 6692.2569 2.3153761e+08 0.061485830 0.032466959 -12.780329 44.301829 6693.9643 2.2277124e+08 0.060597048 0.031273291 -12.845411 44.198466 6695.6716 2.1377866e+08 0.060479299 0.029736115 -12.910492 44.095103 6697.3789 2.0643671e+08 0.059787316 0.030139212 -12.978843 43.995006 6699.0862 2.0021813e+08 0.058493219 0.031510907 -13.047753 43.895469 6700.7935 1.9281642e+08 0.056867224 0.031256277 -13.118360 43.790840 6702.5008 1.8278994e+08 0.055998291 0.033276628 -13.194291 43.670244 6704.2081 1.7316728e+08 0.055924322 0.036279751 -13.270138 43.549809 6705.9154 1.6443720e+08 0.055611075 0.038296058 -13.335271 43.450174 6707.6227 1.5542381e+08 0.054970378 0.040097619 -13.400352 43.350638 6709.3301 1.4981297e+08 0.053907709 0.040922613 -13.465433 43.249606 6711.0374 1.4099417e+08 0.052049825 0.040734744 -13.530515 43.146240 6712.7447 1.3694058e+08 0.050071852 0.043212574 -13.595597 43.042875 6714.4520 1.3079496e+08 0.047911781 0.047337389 -13.660679 42.942490 6716.1593 1.2487512e+08 0.046028972 0.048635992 -13.725760 42.842953 6717.8666 1.2286146e+08 0.044039550 0.049820665 -13.790204 42.743416 6719.5739 1.1628025e+08 0.042187888 0.050824572 -13.851457 42.643881 6721.2812 1.1419206e+08 0.042168812 0.050388636 -13.912710 42.544345 6722.9885 1.0964345e+08 0.040823473 0.049383107 -13.973964 42.442686 6724.6959 1.0266402e+08 0.036966460 0.044115824 -14.035217 42.339321 6726.4032 1.0116996e+08 0.034708999 0.040955004 -14.096470 42.235956 6728.1105 98537750. 0.034021550 0.039784683 -14.161331 42.136200 6729.8178 98643880. 0.032947492 0.040500350 -14.226413 42.036664 6731.5251 96803642. 0.031390410 0.042795072 -14.290230 41.935864 6733.2324 88279068. 0.029662619 0.045186137 -14.351484 41.832498 6734.9397 83231786. 0.029168108 0.049297059 -14.412737 41.729133 6736.6470 80915104. 0.030151024 0.052801157 -14.471241 41.628516 6738.3543 79953914. 0.030676924 0.059271926 -14.528666 41.528979 6740.0617 75855967. 0.029491415 0.064155692 -14.587578 41.427685 6741.7690 70616933. 0.026332229 0.067951834 -14.659027 41.311580 6743.4763 67351635. 0.021240842 0.074260408 -14.730477 41.195475 6745.1836 64523295. 0.017047274 0.078644067 -14.789771 41.090412 6746.8909 62735388. 0.0098454981 0.068629546 -14.847196 40.987047 6748.5982 59824283. 0.0036283858 0.070164121 -14.905596 40.884657 6750.3055 57470849. -0.011652051 0.072525827 -14.966849 40.785121 6752.0128 59532696. -0.080099643 0.074119623 -15.028102 40.685586 6753.7201 57511591. -0.024088236 0.075307817 -15.086896 40.586048 6755.4275 52934246. 0.10179941 0.074417932 -15.144321 40.486511