# # 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 = 44.581319 km # Date (UTC) = 2013-11-29T09:29:47.998 # Date (julian) = 2456625.89569442 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6501.8106 7.1434621e+10 0.050517769 0.032829191 -20.463680 55.770344 6503.6855 6.5983472e+10 0.057647051 0.033394549 -20.588747 55.682061 6505.5603 6.1003928e+10 0.065012029 0.033959907 -20.700936 55.603590 6507.4352 5.6889491e+10 0.072701364 0.034525265 -20.808836 55.528388 6509.3100 5.3436659e+10 0.080791218 0.035090624 -20.916735 55.453186 6511.1849 5.0114135e+10 0.089221880 0.035655982 -21.033964 55.368936 6513.0597 4.6809091e+10 0.097973282 0.036221340 -21.155352 55.280653 6514.9346 4.3595946e+10 0.10706010 0.036786698 -21.276740 55.192370 6516.8095 4.0670012e+10 0.11653267 0.037352056 -21.394566 55.107655 6518.6843 3.8028289e+10 0.12640283 0.037917414 -21.512294 55.023038 6520.5592 3.5579496e+10 0.13662902 0.038482772 -21.630017 54.937487 6522.4340 3.3273689e+10 0.14598614 0.039030906 -21.747727 54.849205 6524.3089 3.1089645e+10 0.15161361 0.039536692 -21.865436 54.760924 6526.1837 2.9018149e+10 0.15596233 0.039860717 -21.983146 54.672641 6528.0586 2.7140512e+10 0.16135017 0.041488969 -22.100856 54.584358 6529.9335 2.5429039e+10 0.16602327 0.043722694 -22.218566 54.496075 6531.8083 2.3829082e+10 0.16924869 0.046405185 -22.333267 54.407793 6533.6832 2.2300316e+10 0.17149460 0.047809913 -22.447298 54.319511 6535.5580 2.0748938e+10 0.17246246 0.047982228 -22.560964 54.231595 6537.4329 1.9217890e+10 0.17343200 0.048889310 -22.671318 54.146990 6539.3077 1.7782569e+10 0.17282954 0.050016138 -22.781671 54.062385 6541.1826 1.6491825e+10 0.17120794 0.051267314 -22.887354 53.980115 6543.0575 1.5421912e+10 0.16970401 0.051396972 -22.985444 53.901644 6544.9323 1.4547901e+10 0.16855059 0.052400655 -23.083534 53.823173 6546.8072 1.3762895e+10 0.16675275 0.053128694 -23.185578 53.741538 6548.6820 1.2989550e+10 0.16508922 0.053871321 -23.295931 53.653255 6550.5569 1.2214103e+10 0.16407471 0.055124797 -23.406284 53.564972 6552.4317 1.1457612e+10 0.16311956 0.055478099 -23.514426 53.476682 6554.3066 1.0795511e+10 0.16141455 0.054838814 -23.621116 53.388387 6556.1815 1.0170064e+10 0.15971563 0.053986449 -23.727807 53.300092 6558.0563 9.5564661e+09 0.15851024 0.053191323 -23.834483 53.211807 6559.9312 8.9638357e+09 0.15681066 0.052282079 -23.941158 53.123525 6561.8060 8.3888352e+09 0.15459751 0.050975491 -24.047833 53.035242 6563.6809 7.8664250e+09 0.15237760 0.049140747 -24.154507 52.946960 6565.5557 7.3635320e+09 0.15079412 0.047687352 -24.261182 52.858678 6567.4306 6.9094287e+09 0.14948299 0.046253111 -24.361071 52.774797 6569.3054 6.5339068e+09 0.14784184 0.044872304 -24.452622 52.696325 6571.1803 6.2283379e+09 0.14637457 0.044454030 -24.544173 52.617852 6573.0552 5.9490305e+09 0.14465008 0.043613215 -24.640189 52.535552 6574.9300 5.6783409e+09 0.14251395 0.042408319 -24.743185 52.447270 6576.8049 5.3976889e+09 0.14004420 0.040444963 -24.846181 52.358988 6578.6797 5.0961555e+09 0.13746131 0.037576236 -24.946707 52.268236 6580.5546 4.8040111e+09 0.13560317 0.036008231 -25.046025 52.176275 6582.4294 4.5265385e+09 0.13418576 0.035176930 -25.145342 52.084314 6584.3043 4.2744234e+09 0.13259701 0.034349745 -25.244660 51.995858 6586.1792 4.0508127e+09 0.13104747 0.033168980 -25.343979 51.907575 6588.0540 3.8290145e+09 0.13006428 0.033361891 -25.443297 51.819292 6589.9289 3.6185722e+09 0.12850977 0.031203173 -25.542614 51.731009 6591.8037 3.4275105e+09 0.12643798 0.028294992 -25.641932 51.642726 6593.6786 3.2559739e+09 0.12456905 0.026471339 -25.733873 51.559501 6595.5534 3.1150043e+09 0.12229656 0.025680965 -25.818896 51.481019 6597.4283 2.9927937e+09 0.12027903 0.025587571 -25.903919 51.402538 6599.3032 2.8780378e+09 0.11871568 0.024947964 -25.993803 51.317882 6601.1780 2.7523382e+09 0.11845638 0.027129525 -26.089442 51.225921 6603.0529 2.6186532e+09 0.11737021 0.026631972 -26.185081 51.133960 6604.9277 2.4886626e+09 0.11645341 0.026622132 -26.280720 51.044719 6606.8026 2.3623265e+09 0.11521653 0.026061739 -26.376360 50.956436 6608.6774 2.2442318e+09 0.11239201 0.023714460 -26.471922 50.868153 6610.5523 2.1323017e+09 0.10951397 0.024530690 -26.563883 50.779871 6612.4272 2.0305634e+09 0.10764882 0.024001595 -26.655844 50.691589 6614.3020 1.9302472e+09 0.10628069 0.023732416 -26.747805 50.602195 6616.1769 1.8377262e+09 0.10440494 0.023310059 -26.839766 50.510235 6618.0517 1.7479737e+09 0.10351881 0.023809858 -26.931727 50.418274 6619.9266 1.6635231e+09 0.10270105 0.024749484 -27.023688 50.328460 6621.8014 1.5795393e+09 0.10167205 0.024823805 -27.115649 50.240177 6623.6763 1.4908492e+09 0.10036313 0.024742384 -27.207610 50.151894 6625.5512 1.4182503e+09 0.099601095 0.026055300 -27.287908 50.072091 6627.4260 1.3632456e+09 0.097931614 0.025481373 -27.366390 49.993610 6629.3009 1.3149041e+09 0.096950171 0.026054707 -27.444872 49.915128 6631.1757 1.2716182e+09 0.095391539 0.025948616 -27.531266 49.825765 6633.0506 1.2213173e+09 0.094311416 0.026161085 -27.619549 49.733805 6634.9254 1.1676383e+09 0.093061688 0.026394349 -27.707832 49.642170 6636.8003 1.1194099e+09 0.091657274 0.026238964 -27.796114 49.553887 6638.6752 1.0653986e+09 0.090734106 0.025642228 -27.884397 49.465604 6640.5500 1.0159361e+09 0.091097349 0.025203357 -27.972679 49.375960 6642.4249 9.7052978e+08 0.090886583 0.025169083 -28.060962 49.283998 6644.2997 9.2976355e+08 0.089804831 0.025376000 -28.149245 49.192037 6646.1746 8.9291957e+08 0.088715753 0.026010517 -28.235130 49.102473 6648.0494 8.5692037e+08 0.087688836 0.026997380 -28.319734 49.014190 6649.9243 8.1881033e+08 0.086838833 0.026359590 -28.404338 48.925907 6651.7992 7.8117226e+08 0.086141446 0.027096601 -28.488941 48.834192 6653.6740 7.4544569e+08 0.085435511 0.027869787 -28.573545 48.742231 6655.5489 7.1224386e+08 0.083857622 0.027837009 -28.657360 48.651060 6657.4237 6.8414224e+08 0.082108857 0.029392618 -28.738286 48.562778 6659.2986 6.5206854e+08 0.080545595 0.031772314 -28.819212 48.474497 6661.1734 6.2281442e+08 0.079231959 0.032623285 -28.901962 48.384390 6663.0483 5.9527515e+08 0.078220538 0.032469829 -28.986566 48.292429 6664.9232 5.7265271e+08 0.077689184 0.028828315 -29.071170 48.200467 6666.7980 5.5118736e+08 0.077449702 0.027064097 -29.152915 48.111366 6668.6729 5.2368628e+08 0.076586374 0.028066213 -29.233840 48.023083 6670.5477 5.0212098e+08 0.076588921 0.027074881 -29.314766 47.934582 6672.4226 4.7830184e+08 0.076399774 0.027124534 -29.395704 47.842608 6674.2974 4.6056510e+08 0.075475436 0.029205698 -29.476642 47.750633 6676.1723 4.4145729e+08 0.073475708 0.031824766 -29.556322 47.658664 6678.0472 4.1931033e+08 0.072743403 0.030905078 -29.633569 47.566703 6679.9220 4.0336281e+08 0.072844300 0.029505866 -29.710815 47.474742 6681.7969 3.8582482e+08 0.073486868 0.030268700 -29.788063 47.385070 6683.6717 3.7098228e+08 0.073710967 0.032172995 -29.865310 47.296789 6685.5466 3.5419528e+08 0.073353129 0.033282159 -29.942557 47.208507 6687.4214 3.3747741e+08 0.071492182 0.034107862 -30.019805 47.116901 6689.2963 3.2340827e+08 0.069121258 0.033749314 -30.097052 47.024939 6691.1711 3.0815791e+08 0.068261944 0.032960883 -30.174299 46.932978 6693.0460 2.9518174e+08 0.067476687 0.031588306 -30.251546 46.841017 6694.9209 2.8407402e+08 0.066803543 0.029970389 -30.328794 46.749057 6696.7957 2.7185416e+08 0.066245211 0.030006391 -30.406041 46.658812 6698.6706 2.6317393e+08 0.065033975 0.031138260 -30.483288 46.570529 6700.5454 2.5441076e+08 0.063350806 0.031072281 -30.560534 46.482246 6702.4203 2.4482215e+08 0.062287548 0.033212334 -30.635030 46.391212 6704.2951 2.3568202e+08 0.062441468 0.036322486 -30.708599 46.299251 6706.1700 2.2616450e+08 0.062329325 0.038742283 -30.782168 46.207399 6708.0449 2.1820266e+08 0.061982518 0.040092430 -30.855736 46.119116 6709.9197 2.1005165e+08 0.060893412 0.040547558 -30.929305 46.030834 6711.7946 2.0336921e+08 0.058923749 0.041596241 -31.002874 45.941409 6713.6694 1.9411544e+08 0.057005178 0.046107814 -31.076443 45.849448 6715.5443 1.8775231e+08 0.055311739 0.047935271 -31.150012 45.757487 6717.4191 1.8321919e+08 0.053310711 0.049848342 -31.223587 45.665518 6719.2940 1.7529371e+08 0.051354817 0.051090515 -31.297166 45.573544 6721.1689 1.6718862e+08 0.051575325 0.050354777 -31.370745 45.481569 6723.0437 1.5723490e+08 0.050418919 0.049393325 -31.449829 45.381794 6724.9186 1.4888099e+08 0.046389952 0.042255987 -31.529706 45.280897 6726.7934 1.4269721e+08 0.044501053 0.040958523 -31.604634 45.184429 6728.6683 1.3786014e+08 0.043983958 0.040575281 -31.674524 45.092468 6730.5431 1.3485119e+08 0.042287885 0.041123619 -31.744414 45.000507 6732.4180 1.3077290e+08 0.040771219 0.043817162 -31.814305 44.908546 6734.2929 1.2554841e+08 0.039896894 0.049335979 -31.884196 44.816585 6736.1677 1.1903807e+08 0.041169726 0.050989061 -31.954087 44.724838 6738.0426 1.1230569e+08 0.041961177 0.057555466 -32.023976 44.636557 6739.9174 1.0745100e+08 0.041545382 0.063949310 -32.093866 44.548275 6741.7923 1.0545282e+08 0.039546385 0.068018335 -32.167151 44.454277 6743.6671 1.0062185e+08 0.035309221 0.075547963 -32.247028 44.349177 6745.5420 97159172. 0.033483093 0.078794738 -32.326905 44.244076 6747.4169 91483000. 0.028838331 0.067217654 -32.393645 44.151606 6749.2917 85683591. 0.027855763 0.072198062 -32.459856 44.059645 6751.1666 84243026. 0.025215686 0.073782098 -32.526067 43.967685 6753.0414 83189319. 0.022703304 0.073111354 -32.592279 43.875724 6754.9163 81510994. 0.020848790 0.074739972 -32.658490 43.783763 6756.7911 77921487. 0.017833450 0.076202630 -32.729661 43.687118 6758.6660 74455050. 0.017597171 0.075113662 -32.805334 43.586221 6760.5409 69807394. 0.016425700 0.077092656 -32.879630 43.486623 6762.4157 66143918. 0.018128623 0.077380268 -32.945842 43.394662 6764.2906 62330192. 0.014584246 0.079497206 -33.012054 43.302701 6766.1654 58903099. -0.019218592 0.080087942 -33.082305 43.205131 6768.0403 55975798. 0.0059221974 0.081000970 -33.157977 43.100031 6769.9151 53113975. 0.067230514 0.086673875 -33.233016 42.995742