# # 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 = 45.986360 km # Date (UTC) = 2010-12-02T10:31:25.601 # Date (julian) = 2455532.93849076 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6506.7856 9.3185113e+10 0.080609364 0.034329383 93.329943 35.438103 6508.9418 8.1572267e+10 0.090739215 0.034979575 93.393400 35.323884 6511.0980 7.1260201e+10 0.10100024 0.035629767 93.457982 35.208536 6513.2541 6.2586079e+10 0.11148882 0.036279960 93.525677 35.090066 6515.4103 5.5334214e+10 0.12225031 0.036930152 93.593372 34.971596 6517.5665 4.9276199e+10 0.13330261 0.037580345 93.657243 34.856959 6519.7227 4.4141131e+10 0.14464313 0.038230537 93.720700 34.742738 6521.8789 3.9600027e+10 0.15621664 0.038880729 93.784157 34.626240 6524.0351 3.5646368e+10 0.16211645 0.039439420 93.847613 34.507790 6526.1913 3.2215407e+10 0.16687956 0.039868600 93.910332 34.390077 6528.3474 2.9112895e+10 0.17181951 0.041718113 93.969557 34.275856 6530.5036 2.6405365e+10 0.17543406 0.044533773 94.028783 34.161635 6532.6598 2.4047554e+10 0.17865829 0.047235401 94.091438 34.043985 6534.8160 2.1992908e+10 0.18000420 0.048172826 94.154894 33.925535 6536.9722 2.0120839e+10 0.18010353 0.048660347 94.218350 33.808974 6539.1284 1.8362816e+10 0.17943513 0.049799029 94.281803 33.694752 6541.2846 1.6755743e+10 0.17796026 0.051234246 94.344906 33.580531 6543.4408 1.5309760e+10 0.17546590 0.051497571 94.404135 33.466310 6545.5969 1.4065974e+10 0.17244805 0.052460915 94.463363 33.352090 6547.7531 1.2918550e+10 0.16979467 0.053573765 94.522589 33.234827 6549.9093 1.1871979e+10 0.16742428 0.054892942 94.581815 33.116377 6552.0655 1.0950467e+10 0.16512864 0.055570280 94.638705 33.003933 6554.2217 1.0169507e+10 0.16229247 0.054837032 94.691356 32.902391 6556.3779 9.5414751e+09 0.15964945 0.053957571 94.744007 32.800849 6558.5341 8.9679727e+09 0.15692407 0.052784220 94.804180 32.687536 6560.6902 8.3975930e+09 0.15375948 0.051651963 94.867637 32.569085 6562.8464 7.8072160e+09 0.15091033 0.050074491 94.928281 32.452040 6565.0026 7.2412629e+09 0.14823536 0.048315422 94.983275 32.337819 6567.1588 6.7142871e+09 0.14562896 0.046482912 95.038269 32.223598 6569.3150 6.2424891e+09 0.14319214 0.044872926 95.097361 32.109377 6571.4712 5.8149249e+09 0.14113939 0.044374587 95.156587 31.995156 6573.6274 5.4048671e+09 0.13849269 0.043154034 95.215812 31.878377 6575.7836 5.0333541e+09 0.13572419 0.041588557 95.275037 31.759925 6577.9397 4.6858211e+09 0.13279998 0.038744267 95.333244 31.642493 6580.0959 4.3631890e+09 0.12970507 0.036432102 95.388238 31.528272 6582.2521 4.0718596e+09 0.12669007 0.035225188 95.443232 31.414051 6584.4083 3.7882490e+09 0.12375750 0.034293094 95.501937 31.299830 6586.5645 3.5292383e+09 0.12089245 0.033163999 95.561162 31.185609 6588.7207 3.3009846e+09 0.11811246 0.033139259 95.615085 31.077894 6590.8769 3.1107289e+09 0.11453155 0.029430968 95.663977 30.976354 6593.0330 2.9511079e+09 0.11133523 0.027071496 95.712869 30.874813 6595.1892 2.7975564e+09 0.10810219 0.025643195 95.766973 30.762442 6597.3454 2.6357013e+09 0.10538122 0.025613725 95.821967 30.648221 6599.5016 2.4785621e+09 0.10407405 0.024959899 95.876963 30.531926 6601.6578 2.3293991e+09 0.10397820 0.027355474 95.931960 30.413474 6603.8140 2.1893166e+09 0.10273465 0.026181399 95.986957 30.295557 6605.9702 2.0570776e+09 0.10250172 0.027478937 96.041951 30.181337 6608.1264 1.9252817e+09 0.10043804 0.023729031 96.096945 30.067117 6610.2825 1.8086658e+09 0.097606587 0.024272941 96.151939 29.952896 6612.4387 1.7038596e+09 0.095809227 0.023992951 96.206933 29.838675 6614.5949 1.6044977e+09 0.094843593 0.023530619 96.261928 29.724454 6616.7511 1.5134633e+09 0.093483359 0.023400184 96.316926 29.610233 6618.9073 1.4211681e+09 0.092864741 0.024455906 96.371923 29.496013 6621.0635 1.3328670e+09 0.092145196 0.025068407 96.426917 29.381791 6623.2197 1.2570505e+09 0.090625281 0.024573207 96.481911 29.267570 6625.3758 1.1844041e+09 0.089287163 0.025846105 96.534068 29.153349 6627.5320 1.1182420e+09 0.087340513 0.025522327 96.584833 29.039128 6629.6882 1.0529167e+09 0.086102936 0.025984672 96.636898 28.924908 6631.8444 9.8567951e+08 0.084355623 0.026016541 96.691892 28.810688 6634.0006 9.2321365e+08 0.082853587 0.026326886 96.746886 28.696468 6636.1568 8.7233799e+08 0.081308533 0.026488868 96.792575 28.594208 6638.3130 8.2904006e+08 0.080136085 0.025658007 96.837706 28.492667 6640.4692 7.9270466e+08 0.080113711 0.025213250 96.885641 28.387520 6642.6253 7.5927414e+08 0.079868646 0.025177287 96.940635 28.273298 6644.7815 7.2249453e+08 0.078997393 0.025428072 96.995630 28.159077 6646.9377 6.8611205e+08 0.078113518 0.026405540 97.046732 28.044856 6649.0939 6.5302643e+08 0.077252175 0.027504247 97.097497 27.930635 6651.2501 6.1728597e+08 0.077242684 0.026675823 97.148262 27.816415 6653.4063 5.8529670e+08 0.077067245 0.027733092 97.199024 27.702195 6655.5625 5.5563545e+08 0.075830885 0.027842627 97.249787 27.587974 6657.7186 5.2427810e+08 0.074510238 0.029734722 97.300553 27.473754 6659.8748 4.9887366e+08 0.073313387 0.031652107 97.351319 27.359533 6662.0310 4.7302112e+08 0.072051531 0.033026865 97.402085 27.245311 6664.1872 4.5112041e+08 0.070997870 0.031521095 97.452852 27.131090 6666.3434 4.2517136e+08 0.071218650 0.026975510 97.503616 27.016869 6668.4996 4.0643039e+08 0.070363850 0.027912870 97.554379 26.902648 6670.6558 3.8726023e+08 0.070272961 0.027024825 97.604714 26.788854 6672.8120 3.6703517e+08 0.070066041 0.027350224 97.651255 26.678848 6674.9681 3.5002017e+08 0.068711739 0.029771484 97.697797 26.568842 6677.1243 3.2868001e+08 0.066707676 0.032181470 97.747455 26.455726 6679.2805 3.1222345e+08 0.066367415 0.030035965 97.798221 26.341505 6681.4367 2.9640022e+08 0.067396652 0.029992391 97.848986 26.227285 6683.5929 2.8223598e+08 0.067815933 0.032057468 97.899749 26.113064 6685.7491 2.7006770e+08 0.067380933 0.033496048 97.950468 25.998843 6687.9053 2.5771522e+08 0.065114207 0.033838026 97.997003 25.884621 6690.0615 2.4254618e+08 0.063232031 0.033108821 98.043538 25.770400 6692.2176 2.3158107e+08 0.062307072 0.032512600 98.092807 25.658913 6694.3738 2.2401146e+08 0.061614180 0.030737093 98.143573 25.548923 6696.5300 2.1700939e+08 0.061463088 0.029895994 98.195022 25.433128 6698.6862 2.0837073e+08 0.060478770 0.031159702 98.248206 25.302588 6700.8424 1.9555446e+08 0.058853323 0.031292538 98.299965 25.175542 6702.9986 1.8628500e+08 0.058554725 0.033674094 98.346500 25.061322 6705.1548 1.7847968e+08 0.058759661 0.036943734 98.393035 24.947101 6707.3109 1.7067848e+08 0.058454586 0.040142284 98.439569 24.836477 6709.4671 1.6058194e+08 0.057735632 0.040835425 98.486104 24.726486 6711.6233 1.5074458e+08 0.055858855 0.041401398 98.532639 24.614437 6713.7795 1.4288012e+08 0.053779288 0.046505924 98.579174 24.500216 6715.9357 1.3401958e+08 0.052077012 0.048335586 98.625708 24.385995 6718.0919 1.3013546e+08 0.049979914 0.049955507 98.672243 24.271774 6720.2481 1.2484326e+08 0.049084972 0.050391024 98.718777 24.157554 6722.4043 1.2079270e+08 0.048796858 0.050105444 98.765315 24.046531 6724.5604 1.1667770e+08 0.045536627 0.045246642 98.811853 23.936525 6726.7166 1.1313714e+08 0.042895719 0.040957831 98.861018 23.818402 6728.8728 1.0953391e+08 0.042507836 0.040865160 98.914202 23.687861 6731.0290 1.0658025e+08 0.040746134 0.041807737 98.965211 23.564039 6733.1852 1.0366934e+08 0.039562323 0.044929730 99.011746 23.454048 6735.3414 96289831. 0.040027842 0.049655824 99.058281 23.344057 6737.4976 93534200. 0.041578865 0.055720550 99.104816 23.229992 6739.6537 85479446. 0.041752787 0.063626612 99.151350 23.115771 6741.8099 81459711. 0.039885624 0.068068665 99.197885 23.004086 6743.9661 82268205. 0.035317936 0.077564850 99.244420 22.894095 6746.1223 80406179. 0.033862342 0.077565339 99.291381 22.780405 6748.2785 79546910. 0.030378823 0.068482057 99.339729 22.654699 6750.4347 77199065. 0.027658078 0.072746363 99.387773 22.530913 6752.5909 71676889. 0.024784400 0.073450734 99.434308 22.416693 6754.7471 68803119. 0.023138004 0.075012117 99.480843 22.302473 6756.9032 66948726. 0.020232110 0.076491076 99.528834 22.179026 6759.0594 61830294. 0.020635241 0.075834295 99.577182 22.053319 6761.2156 59916868. 0.021025511 0.077986039 99.624197 21.936054 6763.3718 56580278. 0.024559896 0.077570087 99.670732 21.821833 6765.5280 53413118. 0.023387023 0.079627579 99.715697 21.709182 6767.6842 51716667. 0.0028982572 0.081209670 99.758004 21.599192 6769.8404 49468076. 0.013035164 0.086492502 99.800354 21.489087 6771.9965 48302844. 0.043913235 0.091722203 99.848702 21.363381