# # 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 = 55.450679 km # Date (UTC) = 2013-01-14T10:29:23.138 # Date (julian) = 2456306.93707336 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6499.1243 2.4158011e+11 0.044745553 0.032019134 94.518751 42.840198 6501.3174 2.0201281e+11 0.053705670 0.032680455 94.609151 42.711737 6503.5105 1.6402319e+11 0.062704042 0.033341777 94.702586 42.578961 6505.7035 1.3145887e+11 0.071701614 0.034003099 94.792547 42.442710 6507.8966 1.0663463e+11 0.080834146 0.034664420 94.881064 42.305016 6510.0897 8.8670888e+10 0.090306406 0.035325742 94.965027 42.181806 6512.2828 7.5770267e+10 0.10030518 0.035987063 95.046778 42.065632 6514.4759 6.5822543e+10 0.11084724 0.036648385 95.130891 41.943664 6516.6690 5.7587213e+10 0.12189179 0.037309706 95.219408 41.810888 6518.8621 5.0408275e+10 0.13335694 0.037971028 95.307925 41.676560 6521.0552 4.4244825e+10 0.14524778 0.038632349 95.396442 41.538866 6523.2483 3.9271969e+10 0.15415342 0.039240652 95.481838 41.407240 6525.4414 3.5309729e+10 0.16068909 0.039731840 95.559289 41.291064 6527.6345 3.2032936e+10 0.16668214 0.041177113 95.636739 41.174888 6529.8276 2.9100356e+10 0.17186156 0.043554040 95.724791 41.042813 6532.0207 2.6246590e+10 0.17597163 0.046701458 95.813308 40.910039 6534.2138 2.3493807e+10 0.17776788 0.048004355 95.897278 40.777264 6536.4069 2.1121928e+10 0.17807398 0.048154526 95.980876 40.644488 6538.6000 1.9169476e+10 0.17839546 0.049448825 96.058998 40.522667 6540.7930 1.7579000e+10 0.17711314 0.051228757 96.136449 40.402187 6542.9861 1.6182868e+10 0.17489768 0.051376631 96.217384 40.274739 6545.1792 1.4807239e+10 0.17282775 0.052457173 96.300982 40.141965 6547.3723 1.3509022e+10 0.17057631 0.053428953 96.379008 40.018043 6549.5654 1.2423654e+10 0.16848324 0.054542486 96.452159 39.901867 6551.7585 1.1543050e+10 0.16661396 0.055502000 96.527495 39.782218 6553.9516 1.0753387e+10 0.16410958 0.054856708 96.611094 39.649442 6556.1447 9.9319465e+09 0.16188297 0.053991852 96.693828 39.516667 6558.3378 9.0950075e+09 0.15989885 0.052951464 96.772507 39.383891 6560.5309 8.3462148e+09 0.15727826 0.051795647 96.850400 39.252865 6562.7240 7.7257226e+09 0.15473348 0.050191010 96.923551 39.132387 6564.9171 7.2408517e+09 0.15224829 0.048355980 96.996701 39.011908 6567.1102 6.7962228e+09 0.14993072 0.046524038 97.074375 38.881369 6569.3033 6.3675165e+09 0.14775963 0.044872162 97.153055 38.748593 6571.4964 5.9702329e+09 0.14594772 0.044367711 97.224027 38.628829 6573.6894 5.6293823e+09 0.14338537 0.043104216 97.292884 38.512636 6575.8825 5.3154416e+09 0.14071028 0.041489242 97.366268 38.388799 6578.0756 4.9936373e+09 0.13791052 0.038530178 97.444948 38.256023 6580.2687 4.6742417e+09 0.13488660 0.036272409 97.519425 38.130343 6582.4618 4.4083251e+09 0.13192582 0.035168120 97.588272 38.014167 6584.6549 4.1863833e+09 0.12882964 0.034158754 97.657626 37.895767 6586.8480 3.9582776e+09 0.12588782 0.033160334 97.731391 37.758074 6589.0411 3.7276352e+09 0.12330900 0.032964433 97.804812 37.621885 6591.2342 3.5172918e+09 0.12061965 0.028937646 97.873656 37.505709 6593.4273 3.3425287e+09 0.11850142 0.026704971 97.942499 37.389533 6595.6204 3.1722312e+09 0.11604088 0.025687907 98.015012 37.260978 6597.8135 2.9914177e+09 0.11416946 0.025466025 98.088777 37.128202 6600.0066 2.8140403e+09 0.11359787 0.025003384 98.155973 37.007250 6602.1997 2.6648228e+09 0.11313706 0.027346248 98.220516 36.891074 6604.3928 2.5472717e+09 0.11190842 0.026304483 98.285059 36.774898 6606.5859 2.4445117e+09 0.11114295 0.026451206 98.349602 36.658722 6608.7789 2.3414464e+09 0.10827184 0.023711776 98.414736 36.541481 6610.9720 2.2305921e+09 0.10523906 0.024931740 98.488497 36.408705 6613.1651 2.1159044e+09 0.10424573 0.023634178 98.561976 36.276438 6615.3582 2.0083793e+09 0.10289806 0.023262553 98.626518 36.160262 6617.5513 1.9212331e+09 0.10172826 0.023622037 98.691061 36.044086 6619.7444 1.8340440e+09 0.10094549 0.024705529 98.762120 35.916183 6621.9375 1.7439444e+09 0.099683843 0.024778706 98.835885 35.783409 6624.1306 1.6595158e+09 0.097654689 0.024932220 98.900546 35.661807 6626.3237 1.5850176e+09 0.096102715 0.026178487 98.960785 35.545631 6628.5168 1.5198125e+09 0.094298133 0.025912916 99.024028 35.423661 6630.7099 1.4482673e+09 0.092430522 0.025930051 99.092874 35.290886 6632.9030 1.3726320e+09 0.090780165 0.026140619 99.160362 35.163348 6635.0961 1.3114927e+09 0.089039854 0.026414194 99.224905 35.047172 6637.2892 1.2596518e+09 0.087440467 0.026019789 99.289448 34.930996 6639.4823 1.2087250e+09 0.086848304 0.025455706 99.358258 34.798362 6641.6753 1.1551246e+09 0.087495718 0.025150594 99.427104 34.665585 6643.8684 1.1008192e+09 0.086848956 0.025323743 99.487705 34.548711 6646.0615 1.0545291e+09 0.086054508 0.025952000 99.547944 34.432535 6648.2546 1.0075612e+09 0.085231896 0.027134735 99.610521 34.305838 6650.4477 9.6032315e+08 0.084772272 0.026357734 99.674449 34.173062 6652.6408 9.1594608e+08 0.084482049 0.027426836 99.736162 34.050252 6654.8339 8.7616712e+08 0.083547004 0.027680972 99.796401 33.934077 6657.0270 8.3873338e+08 0.081722850 0.028932436 99.859019 33.813315 6659.2201 8.0267875e+08 0.080287004 0.031788686 99.927868 33.680541 6661.4132 7.6913662e+08 0.078996466 0.032745397 99.993583 33.551797 6663.6063 7.3903921e+08 0.077710546 0.032315196 100.04952 33.435621 6665.7994 7.1167679e+08 0.077542600 0.027237320 100.10545 33.319444 6667.9925 6.8052431e+08 0.076888755 0.027468010 100.16873 33.188018 6670.1856 6.5015175e+08 0.076333091 0.027242663 100.23266 33.055243 6672.3787 6.2486828e+08 0.075993699 0.027099077 100.29333 32.937146 6674.5718 6.0121548e+08 0.074769788 0.029437102 100.35358 32.820952 6676.7648 5.8096457e+08 0.072418672 0.032206663 100.41589 32.695448 6678.9579 5.5590201e+08 0.071605616 0.030295903 100.47983 32.562673 6681.1510 5.3318037e+08 0.072590754 0.029773229 100.53953 32.438662 6683.3441 5.1260891e+08 0.073014975 0.031692904 100.59547 32.322486 6685.5372 4.9472955e+08 0.072621635 0.033272276 100.65303 32.203928 6687.7303 4.7754429e+08 0.070495495 0.033935596 100.71696 32.076069 6689.9234 4.5543016e+08 0.068554072 0.033184809 100.77880 31.950202 6692.1165 4.3869812e+08 0.067653383 0.032630042 100.83043 31.834027 6694.3096 4.2395186e+08 0.066937154 0.030827112 100.88207 31.717852 6696.5027 4.1065535e+08 0.066784818 0.029884643 100.94410 31.587627 6698.6958 3.9640756e+08 0.065763744 0.031172859 101.00803 31.454852 6700.8889 3.7938310e+08 0.064070617 0.031327023 101.07196 31.322076 6703.0820 3.6111249e+08 0.063852510 0.033880350 101.13589 31.189301 6705.2751 3.4437874e+08 0.064080778 0.037157613 101.19024 31.069462 6707.4682 3.3281781e+08 0.063763154 0.040119763 101.24187 30.953286 6709.6613 3.2170443e+08 0.062890973 0.040711956 101.29910 30.831792 6711.8543 3.1027115e+08 0.060854581 0.041664242 101.36303 30.703933 6714.0474 2.9689289e+08 0.058718664 0.047306975 101.42178 30.581002 6716.2405 2.8449032e+08 0.056987052 0.048755640 101.47341 30.464827 6718.4336 2.7494243e+08 0.054715278 0.050487752 101.52576 30.347030 6720.6267 2.6789149e+08 0.054308866 0.050347150 101.58477 30.214255 6722.8198 2.5671481e+08 0.053581552 0.049591703 101.64379 30.081795 6725.0129 2.4309814e+08 0.049334902 0.041567959 101.70280 29.953938 6727.2060 2.2651993e+08 0.047822775 0.040685936 101.76159 29.826438 6729.3991 2.1319461e+08 0.047184716 0.040779422 101.81322 29.710262 6731.5922 2.0369708e+08 0.045309485 0.042928585 101.86485 29.594086 6733.7853 1.9889532e+08 0.044075262 0.048187823 101.92170 29.466181 6735.9784 2.0066394e+08 0.045445693 0.050332048 101.98071 29.333406 6738.1715 1.9669432e+08 0.046641006 0.058265097 102.03972 29.203941 6740.3646 1.8978719e+08 0.046157692 0.064673152 102.09873 29.076083 6742.5577 1.8070881e+08 0.043239227 0.069969581 102.15460 28.945080 6744.7507 1.7240879e+08 0.039299912 0.078374097 102.20869 28.812305 6746.9438 1.6833731e+08 0.034689548 0.068014063 102.26130 28.692198 6749.1369 1.6429702e+08 0.034226530 0.072240440 102.31293 28.580325 6751.3300 1.6044727e+08 0.030861044 0.073851209 102.36664 28.462557 6753.5231 1.5586433e+08 0.028513318 0.074670209 102.42565 28.329782 6755.7162 1.4712614e+08 0.026154403 0.074291330 102.48344 28.198229 6757.9093 1.3947166e+08 0.025022455 0.073980544 102.53754 28.070370 6760.1024 1.3014347e+08 0.025573248 0.076256550 102.59163 27.941455 6762.2955 1.2566478e+08 0.029545632 0.077574184 102.64573 27.808680 6764.4886 1.2437161e+08 0.032390439 0.079506693 102.70071 27.676798 6766.6817 1.1816922e+08 0.032923615 0.081255729 102.75972 27.548941 6768.8748 1.1500013e+08 0.028374226 0.084003681 102.81800 27.420355 6771.0679 1.0655285e+08 0.024150813 0.089469758 102.87210 27.287580 6773.2610 1.0284814e+08 0.020099739 0.094788974 102.92541 27.157197 6775.4541 1.0357758e+08 0.016161315 0.10010819 102.97275 27.045324 6777.6472 1.0073491e+08 0.012149424 0.10542741 103.02008 26.933451 6779.8402 97653700. 0.0081384545 0.11074662 103.07275 26.805056 6782.0333 91321094. 0.0040278727 0.11606584 103.12685 26.672280 6784.2264 85248699. -8.5364357e-05 0.12138505 103.18094 26.543227 6786.4195 82880889. -0.0040553775 0.12670427 103.23504 26.415369 6788.6126 78892008. -0.0081073362 0.13202349 103.28913 26.287512 6790.8057 74820346. -0.012209654 0.13734270 103.34322 26.159656 6792.9988 73755832. -0.016197127 0.14266192 103.39732 26.028406 6795.1919 72654495. -0.020248189 0.14798114 103.45141 25.895630 6797.3850 70134753. -0.024485997 0.15330035 103.50228 25.766083 6799.5781 67821532. -0.028879982 0.15861957 103.55145 25.638225 6801.7712 64743322. -0.033620572 0.16393878 103.60369 25.510367 6803.9643 61158145. -0.038944443 0.16925800 103.65779 25.382509 6806.1574 58764402. -0.045120171 0.17457722 103.71719 25.242090 6808.3505 55034606. -0.054601497 0.17989643 103.78030 25.092918 6810.5436 53725342. -0.088597142 0.18521565 103.83162 24.957624 6812.7366 52671205. -0.067526699 0.19053487 103.88080 24.824849 6814.9297 50795114. -0.016273453 0.19585408 103.93397 24.696071