# # 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 = 60.691904 km # Date (UTC) = 2014-01-30T19:45:11.557 # Date (julian) = 2456688.32305043 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6501.4828 4.4911889e+10 0.050942885 0.032730346 -48.888795 55.222409 6504.1758 4.0267111e+10 0.060974161 0.033542403 -48.640169 54.977583 6506.8687 3.5844717e+10 0.071143953 0.034354460 -48.354839 54.681688 6509.5617 3.2169741e+10 0.081673711 0.035166517 -48.092613 54.409639 6512.2547 2.8812724e+10 0.092523321 0.035978574 -47.861721 54.169934 6514.9476 2.6272013e+10 0.10406138 0.036790630 -47.592916 53.887265 6517.6406 2.4337517e+10 0.11642544 0.037602687 -47.381216 53.650541 6520.3336 2.2296392e+10 0.12921854 0.038414744 -47.161403 53.413818 6523.0265 2.0576241e+10 0.13994682 0.039185691 -46.903597 53.135484 6525.7195 1.9030518e+10 0.14571356 0.039700099 -46.695219 52.894424 6528.4125 1.7473068e+10 0.15127519 0.041769699 -46.492314 52.657699 6531.1054 1.6090391e+10 0.15525143 0.045382147 -46.261791 52.388756 6533.7984 1.4680527e+10 0.15921895 0.047858886 -46.038544 52.128304 6536.4914 1.3251686e+10 0.16082609 0.048230145 -45.839152 51.891579 6539.1843 1.2111410e+10 0.16323599 0.049866766 -45.644711 51.654867 6541.8773 1.1156887e+10 0.16470768 0.051042027 -45.450725 51.418197 6544.5703 1.0228954e+10 0.16569445 0.052106963 -45.264730 51.181474 6547.2632 9.3681473e+09 0.16605084 0.053387469 -45.071399 50.944748 6549.9562 8.5780326e+09 0.16568321 0.054940729 -44.888546 50.708062 6552.6492 7.9192349e+09 0.16402822 0.055423370 -44.706788 50.471367 6555.3421 7.3797380e+09 0.16161228 0.054565887 -44.523482 50.234642 6558.0351 6.9033289e+09 0.15902544 0.053209391 -44.345943 49.996779 6560.7281 6.4605104e+09 0.15578443 0.051617859 -44.168443 49.751661 6563.4210 6.0526116e+09 0.15296332 0.049441323 -43.990902 49.514535 6566.1140 5.6695557e+09 0.15040551 0.047118392 -43.813360 49.277811 6568.8070 5.2901021e+09 0.14876543 0.045029864 -43.640778 49.041088 6571.4999 4.9301808e+09 0.14755733 0.044366732 -43.471705 48.804386 6574.1929 4.5818464e+09 0.14554098 0.042762354 -43.304515 48.565837 6576.8859 4.2697462e+09 0.14363066 0.040351738 -43.144633 48.322486 6579.5788 4.0135432e+09 0.14099242 0.036752285 -43.003731 48.125222 6582.2718 3.7792118e+09 0.13880373 0.035219830 -42.850644 47.903581 6584.9648 3.5471814e+09 0.13678275 0.033989964 -42.693714 47.666890 6587.6577 3.3151461e+09 0.13472547 0.033304099 -42.546167 47.438360 6590.3507 3.1189699e+09 0.13216168 0.030409704 -42.412308 47.234051 6593.0437 2.9554149e+09 0.12919042 0.027061621 -42.263182 47.002727 6595.7366 2.8058815e+09 0.12560446 0.025699962 -42.105528 46.766040 6598.4296 2.6605824e+09 0.12266616 0.025202058 -41.964017 46.544499 6601.1226 2.5229849e+09 0.12152951 0.027103413 -41.842693 46.338634 6603.8155 2.3932557e+09 0.11918731 0.026180478 -41.690513 46.101911 6606.5085 2.2599222e+09 0.11748320 0.026590200 -41.538335 45.865188 6609.2015 2.1321169e+09 0.11320751 0.023765777 -41.408290 45.650612 6611.8944 2.0091498e+09 0.10975463 0.024388070 -41.282247 45.437818 6614.5874 1.9053532e+09 0.10855473 0.023535795 -41.140436 45.204247 6617.2804 1.7992330e+09 0.10747722 0.023532205 -41.020669 45.006983 6619.9733 1.6951190e+09 0.10727916 0.024760764 -40.890662 44.778076 6622.6663 1.6138365e+09 0.10599441 0.024580645 -40.762797 44.555783 6625.3593 1.5277847e+09 0.10457231 0.025826320 -40.642131 44.356226 6628.0522 1.4550136e+09 0.10276491 0.025724303 -40.506893 44.119559 6630.7452 1.3872974e+09 0.10099582 0.025930138 -40.391359 43.917376 6633.4382 1.3104953e+09 0.099443412 0.026228753 -40.268361 43.698280 6636.1311 1.2412245e+09 0.097680379 0.026498828 -40.141164 43.466176 6638.8241 1.1754908e+09 0.096399756 0.025635738 -40.035489 43.268914 6641.5171 1.1187123e+09 0.096925503 0.025150056 -39.923819 43.071683 6644.2100 1.0676662e+09 0.095742443 0.025366306 -39.804996 42.853658 6646.9030 1.0175041e+09 0.094313326 0.026387570 -39.683484 42.620502 6649.5960 9.6889483e+08 0.092950442 0.026812175 -39.577809 42.423241 6652.2889 9.2570867e+08 0.092113007 0.027330018 -39.472132 42.225980 6654.9819 8.8354349e+08 0.090606188 0.027617927 -39.357744 42.008974 6657.6749 8.4031915e+08 0.088110454 0.029683936 -39.235778 41.774788 6660.3678 7.9927363e+08 0.085973124 0.031960341 -39.130125 41.577566 6663.0608 7.6490400e+08 0.083925245 0.032466363 -39.030156 41.380309 6665.7538 7.2766057e+08 0.082870938 0.027312056 -38.923827 41.164353 6668.4467 6.9250954e+08 0.081410332 0.027866102 -38.809555 40.929109 6671.1397 6.6104656e+08 0.080817087 0.026867339 -38.710922 40.731845 6673.8327 6.3080416e+08 0.079934504 0.028704532 -38.612291 40.534583 6676.5256 6.0479503e+08 0.077330710 0.032052492 -38.506401 40.322803 6679.2186 5.7523183e+08 0.076633061 0.030087130 -38.391720 40.092134 6681.9116 5.4879590e+08 0.077884633 0.030356698 -38.293089 39.887826 6684.6045 5.2588542e+08 0.078110088 0.032684769 -38.199853 39.688916 6687.2975 5.0338373e+08 0.076188769 0.034176982 -38.105826 39.491653 6689.9905 4.8263261e+08 0.073566302 0.033124446 -38.007194 39.294387 6692.6834 4.5580709e+08 0.072444195 0.031971699 -37.898133 39.060595 6695.3764 4.3126161e+08 0.071787295 0.029790334 -37.801864 38.848002 6698.0694 4.1139170e+08 0.070865013 0.030313030 -37.710279 38.645981 6700.7623 3.9563993e+08 0.068578061 0.031233161 -37.618692 38.448720 6703.4553 3.8471111e+08 0.067927787 0.034814538 -37.527105 38.251458 6706.1483 3.6566099e+08 0.067850500 0.038704449 -37.426620 38.035030 6708.8412 3.4743701e+08 0.067123577 0.040959650 -37.324399 37.808134 6711.5342 3.2945587e+08 0.064846244 0.041300004 -37.239875 37.603868 6714.2272 3.1712315e+08 0.062072376 0.047320487 -37.149114 37.405786 6716.9201 3.0267661e+08 0.059628912 0.049756630 -37.060795 37.208523 6719.6131 2.8694238e+08 0.057380889 0.050787351 -36.975505 37.009514 6722.3061 2.7037360e+08 0.057257854 0.050226828 -36.874053 36.772791 6724.9990 2.5576872e+08 0.052547369 0.041584109 -36.787170 36.570061 6727.6920 2.4553780e+08 0.050917687 0.040038447 -36.702629 36.372799 6730.3850 2.3499691e+08 0.049364771 0.040906736 -36.618087 36.175538 6733.0779 2.2722255e+08 0.047766230 0.044347416 -36.533563 35.978315 6735.7709 2.1730325e+08 0.048693437 0.050111797 -36.449029 35.781067 6738.4639 2.1147996e+08 0.050230250 0.059874876 -36.362936 35.575011 6741.1568 2.0137278e+08 0.049151988 0.066205981 -36.269943 35.329868 6743.8498 1.9297360e+08 0.043979351 0.076780148 -36.185403 35.132604 6746.5428 1.8305236e+08 0.040421265 0.072677043 -36.104957 34.935341 6749.2357 1.7707168e+08 0.038060539 0.072213390 -36.026323 34.738086 6751.9287 1.7354113e+08 0.033568420 0.074104329 -35.941797 34.540864 6754.6217 1.6639966e+08 0.031855046 0.075213758 -35.850985 34.314326 6757.3146 1.6014901e+08 0.029107773 0.075785238 -35.766658 34.099671 6760.0076 1.4904405e+08 0.030257448 0.076075757 -35.689161 33.902409 6762.7006 1.4167058e+08 0.035002717 0.076920780 -35.611665 33.705147 6765.3935 1.3282056e+08 0.038072820 0.079603033 -35.534168 33.507884 6768.0865 1.2854513e+08 0.035444417 0.081167259 -35.452012 33.298759 6770.7795 1.2520324e+08 0.029895493 0.088770240 -35.361692 33.066740 6773.4724 1.2014671e+08 0.025014769 0.095301868 -35.291242 32.869478 6776.1654 1.1290639e+08 0.020170008 0.10183350 -35.215870 32.677137 6778.8584 1.0462713e+08 0.015342001 0.10836512 -35.138374 32.484953 6781.5513 98110269. 0.010509748 0.11489675 -35.060877 32.287687 6784.2443 93673421. 0.0056606365 0.12142838 -34.977340 32.056551 6786.9373 88804182. 0.00083357223 0.12796001 -34.902337 31.846544 6789.6302 85024031. -0.0039738220 0.13449164 -34.830074 31.649282 6792.3232 85355416. -0.0087747015 0.14102326 -34.752580 31.452020 6795.0162 85279159. -0.013532981 0.14755489 -34.669179 31.221700 6797.7091 82171522. -0.018242147 0.15408652 -34.593864 31.010819 6800.4021 76023396. -0.022923291 0.16061815 -34.523414 30.813557 6803.0951 71656174. -0.027611326 0.16714977 -34.452961 30.616295 6805.7880 68747681. -0.032303491 0.17368140 -34.371027 30.393773 6808.4810 65636390. -0.036982568 0.18021303 -34.295411 30.185148 6811.1740 63203914. -0.041669158 0.18674466 -34.223757 29.979461 6813.8669 59940812. -0.046343799 0.19327629 -34.147840 29.743948 6816.5599 60158659. -0.051055314 0.19980791 -34.077388 29.546685 6819.2529 59258901. -0.055756789 0.20633954 -34.006945 29.353753 6821.9458 55884075. -0.060442731 0.21287117 -33.935427 29.154659 6824.6388 53575867. -0.065145468 0.21940280 -33.859386 28.918279 6827.3318 50972791. -0.069863074 0.22593443 -33.788933 28.721015 6830.0247 50050055. -0.074621890 0.23246605 -33.715158 28.505479 6832.7177 47653287. -0.079412773 0.23899768 -33.644230 28.289831 6835.4107 45956745. -0.084289302 0.24552931 -33.580840 28.092607 6838.1036 46614636. -0.089290511 0.25206094 -33.496573 27.856405 6840.7966 44421877. -0.095026287 0.25859257 -33.429023 27.657072 6843.4896 42513510. -0.10524412 0.26512419 -33.360740 27.448971 6846.1825 42808473. -0.10572179 0.27165582 -33.284654 27.213963 6848.8755 44064600. -0.10132449 0.27818745 -33.208818 26.986324