# # 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 = 61.167846 km # Date (UTC) = 2013-12-07T09:15:26.099 # Date (julian) = 2456633.88571873 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6502.9438 4.5910845e+10 0.059779817 0.033170915 -19.203658 52.166972 6505.8678 4.1267727e+10 0.070239497 0.034052641 -19.370026 52.029288 6508.7918 3.7177334e+10 0.080863818 0.034934367 -19.531239 51.895871 6511.7159 3.3455555e+10 0.091732848 0.035816093 -19.679120 51.773487 6514.6399 3.0548817e+10 0.10314780 0.036697819 -19.825380 51.651103 6517.5639 2.8359207e+10 0.11534454 0.037579545 -19.968161 51.528719 6520.4879 2.6273614e+10 0.12816729 0.038461271 -20.117319 51.400869 6523.4119 2.4236120e+10 0.13761867 0.039281194 -20.277975 51.263164 6526.3359 2.2174512e+10 0.14230980 0.040020215 -20.424527 51.134865 6529.2599 2.0285797e+10 0.14662153 0.042649755 -20.562209 51.012482 6532.1839 1.8714324e+10 0.15077412 0.046837810 -20.703220 50.890098 6535.1079 1.7259368e+10 0.15263043 0.048177493 -20.846001 50.767713 6538.0319 1.5775751e+10 0.15369739 0.049172214 -20.993194 50.634744 6540.9559 1.4332163e+10 0.15455177 0.051305696 -21.142352 50.497061 6543.8799 1.2982661e+10 0.15538559 0.051612830 -21.280623 50.373892 6546.8039 1.1802710e+10 0.15713938 0.053126019 -21.418303 50.251507 6549.7279 1.0845534e+10 0.15873073 0.054708089 -21.550968 50.129106 6552.6519 9.9515404e+09 0.15939241 0.055422677 -21.684013 50.006294 6555.5759 9.0905273e+09 0.15825479 0.054369444 -21.833172 49.868611 6558.4999 8.2601476e+09 0.15613623 0.052813296 -21.977626 49.735269 6561.4239 7.4635842e+09 0.15298440 0.051163771 -22.110209 49.612884 6564.3479 6.8064832e+09 0.15004669 0.048613907 -22.241146 49.490500 6567.2720 6.2607889e+09 0.14813282 0.046387244 -22.368629 49.368117 6570.1960 5.7493592e+09 0.14671275 0.044836336 -22.501877 49.238124 6573.1200 5.2569102e+09 0.14502443 0.043561213 -22.645298 49.094703 6576.0440 4.7752471e+09 0.14290399 0.041320783 -22.775716 48.964285 6578.9680 4.3580062e+09 0.14049870 0.037121068 -22.898117 48.841884 6581.8920 4.0332002e+09 0.13863561 0.035326505 -23.023860 48.719494 6584.8160 3.7643884e+09 0.13672576 0.034071012 -23.151344 48.597112 6587.7400 3.5097062e+09 0.13483411 0.033322323 -23.285935 48.464066 6590.6640 3.2613621e+09 0.13226965 0.029826928 -23.423619 48.326381 6593.5880 3.0321619e+09 0.12954429 0.026555557 -23.541849 48.198425 6596.5120 2.8285286e+09 0.12617440 0.025724946 -23.659145 48.070936 6599.4360 2.6484225e+09 0.12396834 0.024955954 -23.796667 47.933334 6602.3600 2.4712427e+09 0.12312267 0.027209407 -23.929265 47.799463 6605.2840 2.3023918e+09 0.12145171 0.026903317 -24.046565 47.677062 6608.2080 2.1570990e+09 0.11808234 0.023726871 -24.163861 47.553194 6611.1320 2.0353941e+09 0.11296382 0.024874256 -24.281147 47.425710 6614.0560 1.9129221e+09 0.11037303 0.023901882 -24.401357 47.294884 6616.9800 1.7889083e+09 0.10730451 0.023436117 -24.527567 47.157199 6619.9041 1.6712339e+09 0.10540373 0.024744047 -24.648559 47.025477 6622.8281 1.5649378e+09 0.10294704 0.024537591 -24.765844 46.897994 6625.7521 1.4653880e+09 0.10093524 0.026295041 -24.888694 46.764151 6628.6761 1.3673629e+09 0.099155914 0.025977585 -25.014905 46.626468 6631.6001 1.2792222e+09 0.097384510 0.025991721 -25.128781 46.502239 6634.5241 1.1982910e+09 0.095850813 0.026365071 -25.240981 46.379838 6637.4481 1.1279678e+09 0.094279814 0.025941954 -25.360789 46.238107 6640.3721 1.0596643e+09 0.094201978 0.025225126 -25.479799 46.098399 6643.2961 9.9509974e+08 0.093838017 0.025237325 -25.591986 45.976015 6646.2201 9.4138157e+08 0.092334805 0.026034078 -25.705958 45.849099 6649.1441 8.8824868e+08 0.090753932 0.027435044 -25.826431 45.705678 6652.0681 8.3616451e+08 0.090145554 0.027269261 -25.938172 45.572194 6654.9921 7.8392639e+08 0.088798094 0.027613574 -26.040159 45.449809 6657.9161 7.3866869e+08 0.086286992 0.029963784 -26.151598 45.316668 6660.8401 6.9519033e+08 0.084006538 0.032389633 -26.272071 45.173247 6663.7641 6.5620296e+08 0.081859056 0.032271453 -26.382272 45.045975 6666.6881 6.2165720e+08 0.081244855 0.027042688 -26.489373 44.923575 6669.6121 5.8994980e+08 0.079676474 0.027726988 -26.602639 44.784202 6672.5361 5.5973059e+08 0.078968029 0.027190361 -26.717375 44.641150 6675.4602 5.2446700e+08 0.076464088 0.030679723 -26.832112 44.503465 6678.3842 4.9076401e+08 0.074255621 0.030679671 -26.941117 44.370694 6681.3082 4.6395878e+08 0.074539914 0.029893778 -27.038004 44.248309 6684.2322 4.4251339e+08 0.074407871 0.032665873 -27.141320 44.118349 6687.1562 4.2391629e+08 0.072251064 0.034255799 -27.256057 43.974927 6690.0802 4.0314118e+08 0.069341111 0.033106675 -27.367254 43.835046 6693.0042 3.7567590e+08 0.068295914 0.031602652 -27.476254 43.697363 6695.9282 3.5222718e+08 0.067780747 0.029688976 -27.574680 43.568579 6698.8522 3.2987765e+08 0.066507160 0.031387558 -27.671581 43.441079 6701.7762 3.1253305e+08 0.064317726 0.032548358 -27.779530 43.304279 6704.7002 2.9818496e+08 0.064696554 0.036521393 -27.888530 43.165618 6707.6242 2.7872942e+08 0.064432755 0.040097408 -27.997529 43.022197 6710.5482 2.6068736e+08 0.062876804 0.040603802 -28.104080 42.881226 6713.4722 2.4414482e+08 0.060092743 0.045394564 -28.207344 42.743542 6716.3962 2.3002082e+08 0.057523886 0.048984972 -28.314530 42.601935 6719.3202 2.1869430e+08 0.054723260 0.051065590 -28.423530 42.458514 6722.2442 2.0579589e+08 0.054764798 0.050303257 -28.516340 42.334881 6725.1682 1.9349959e+08 0.049927407 0.041470924 -28.608128 42.212496 6728.0923 1.8408106e+08 0.048471980 0.039758853 -28.711172 42.069483 6731.0163 1.7513030e+08 0.046379010 0.041782383 -28.813089 41.927404 6733.9403 1.6726332e+08 0.044544113 0.049029275 -28.910615 41.789720 6736.8643 1.5794313e+08 0.046611947 0.053622427 -29.010973 41.649205 6739.7883 1.4640783e+08 0.047021947 0.063791250 -29.114236 41.505784 6742.7123 1.3817142e+08 0.043311403 0.070346357 -29.213194 41.366668 6745.6363 1.3140812e+08 0.039213838 0.078834376 -29.310762 41.228940 6748.5603 1.2467376e+08 0.034821760 0.069964611 -29.414026 41.085519 6751.4843 1.1761704e+08 0.030658396 0.073916434 -29.515773 40.943614 6754.4083 1.1054320e+08 0.027994206 0.075556870 -29.613299 40.805932 6757.3323 1.0694268e+08 0.025068921 0.075731591 -29.710826 40.665258 6760.2563 1.0250199e+08 0.026205425 0.076550048 -29.808353 40.521836 6763.1803 98456995. 0.031692246 0.076986928 -29.901415 40.382878 6766.1043 89596871. 0.034335408 0.079949729 -29.993892 40.244277 6769.0283 85546542. 0.029106863 0.084522972 -30.105353 40.080364 6771.9523 84799738. 0.023901151 0.091614971 -30.206787 39.929819 6774.8763 83681086. 0.018699250 0.098706969 -30.298576 39.792134 6777.8003 82206004. 0.013506230 0.10579897 -30.390376 39.654435 6780.7244 75120438. 0.0082123000 0.11289097 -30.482179 39.516596 6783.6484 72156318. 0.0029980033 0.11998297 -30.573968 39.373174 6786.5724 69327659. -0.0022065662 0.12707496 -30.669439 39.225841 6789.4964 68950713. -0.0073373790 0.13416696 -30.774343 39.068484 6792.4204 68827480. -0.012453095 0.14125896 -30.869340 38.921654 6795.3444 63929744. -0.017701278 0.14835096 -30.961129 38.778304 6798.2684 60413963. -0.022910325 0.15544296 -31.052920 38.640621 6801.1924 57501852. -0.028102171 0.16253496 -31.146475 38.497641 6804.1164 55561334. -0.033253506 0.16962696 -31.244824 38.340283 6807.0404 56109552. -0.038289523 0.17671896 -31.338292 38.193294 6809.9644 53987665. -0.043447530 0.18381095 -31.430096 38.049842 6812.8884 50892324. -0.048655233 0.19090295 -31.528435 37.892505 6815.8124 46921522. -0.053912333 0.19799495 -31.620934 37.741778 6818.7364 44125909. -0.059098502 0.20508695 -31.706986 37.598357 6821.6604 41672788. -0.064261498 0.21217895 -31.802046 37.444727 6824.5844 43954116. -0.069083381 0.21927095 -31.900393 37.287369 6827.5084 43694722. -0.074117404 0.22636295 -31.998742 37.130013 6830.4324 40337712. -0.079423699 0.23345495 -32.092617 36.968183 6833.3564 39120831. -0.084620067 0.24054694 -32.183507 36.808388 6836.2805 35699442. -0.090116090 0.24763894 -32.269561 36.670703 6839.2045 37144069. -0.095171556 0.25473094 -32.357989 36.524876 6842.1285 36795247. -0.10051650 0.26182294 -32.449780 36.367518 6845.0525 33957707. -0.10634651 0.26891494 -32.547398 36.204335 6847.9765 36126924. -0.11164108 0.27600694 -32.643364 36.042805 6850.9005 35184785. -0.11768205 0.28309894 -32.735155 35.885448 6853.8245 35148256. -0.12403107 0.29019094 -32.826947 35.728091 6856.7485 34800641. -0.13131782 0.29728293 -32.918738 35.568681 6859.6725 31646571. -0.14230128 0.30437493 -33.010528 35.404767 6862.5965 32845189. -0.17292593 0.31146693 -33.102319 35.246021 6865.5205 33734136. -0.15656003 0.31855893 -33.192388 35.088665 6868.4445 35139971. -0.11741612 0.32565093 -33.277624 34.931307