# # 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 = 69.898807 km # Date (UTC) = 2014-12-11T09:23:36.346 # Date (julian) = 2457002.89139289 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6486.3434 1.0899789e+11 0.039639832 0.028165099 -19.754825 52.546635 6489.1645 8.8878083e+10 0.049979477 0.029015801 -19.902421 52.433475 6491.9856 7.4030764e+10 0.059832986 0.029866503 -20.050018 52.315984 6494.8068 6.5048221e+10 0.068417656 0.030717205 -20.197615 52.197907 6497.6279 5.9395865e+10 0.075934381 0.031567907 -20.341039 52.084004 6500.4490 5.3551186e+10 0.083264787 0.032418609 -20.483717 51.970846 6503.2701 4.8108364e+10 0.090262638 0.033269311 -20.630424 51.853661 6506.0913 4.3544824e+10 0.096744729 0.034120014 -20.778041 51.735566 6508.9124 3.9647532e+10 0.10276872 0.034970716 -20.917933 51.617486 6511.7335 3.6262535e+10 0.10824175 0.035821418 -21.055691 51.499409 6514.5546 3.3398581e+10 0.11312736 0.036672120 -21.197143 51.385026 6517.3758 3.0584124e+10 0.11766031 0.037522822 -21.339820 51.271868 6520.1969 2.8035427e+10 0.12266305 0.038373524 -21.478963 51.155175 6523.0180 2.5742006e+10 0.12677495 0.039183574 -21.616720 51.037097 6525.8391 2.3628019e+10 0.12795171 0.039686448 -21.751116 50.919007 6528.6602 2.1656036e+10 0.13318632 0.041966256 -21.883971 50.800913 6531.4814 1.9678936e+10 0.14152248 0.045929315 -22.027669 50.676799 6534.3025 1.7776814e+10 0.15235090 0.048029175 -22.177114 50.549495 6537.1236 1.6030104e+10 0.16190695 0.048743504 -22.312494 50.430005 6539.9447 1.4460912e+10 0.16833914 0.050787206 -22.445331 50.311928 6542.7659 1.3175774e+10 0.16847680 0.051293000 -22.578169 50.193850 6545.5870 1.2015510e+10 0.16589485 0.052460826 -22.711007 50.075771 6548.4081 1.0970171e+10 0.16369853 0.053789520 -22.840012 49.957681 6551.2292 1.0046744e+10 0.16169172 0.055316213 -22.967946 49.839589 6554.0503 9.1918466e+09 0.15973591 0.054833437 -23.095869 49.721507 6556.8715 8.4117017e+09 0.15804159 0.053885003 -23.223786 49.603428 6559.6926 7.6922302e+09 0.15567855 0.052309007 -23.351704 49.485351 6562.5137 7.0309986e+09 0.15310240 0.050391083 -23.479622 49.367274 6565.3348 6.4353033e+09 0.15089676 0.047938182 -23.604173 49.249196 6568.1560 5.9148407e+09 0.14938376 0.045628295 -23.727171 49.131117 6570.9771 5.4811530e+09 0.14804446 0.044512767 -23.850179 49.013028 6573.7982 5.1026302e+09 0.14627477 0.043016939 -23.973193 48.894934 6576.6193 4.7238482e+09 0.14430052 0.040658531 -24.105723 48.767705 6579.4405 4.3403162e+09 0.14164183 0.036828361 -24.244098 48.634867 6582.2616 3.9760016e+09 0.13940797 0.035222613 -24.365975 48.514025 6585.0827 3.6653150e+09 0.13703654 0.033904657 -24.484053 48.395947 6587.9038 3.4151437e+09 0.13437110 0.033358622 -24.602131 48.277869 6590.7249 3.1961274e+09 0.13068959 0.029713557 -24.720209 48.159792 6593.5461 2.9953024e+09 0.12678581 0.026594544 -24.838286 48.041714 6596.3672 2.8073836e+09 0.12197011 0.025725604 -24.956364 47.923636 6599.1883 2.6343147e+09 0.11837007 0.024941056 -25.070934 47.805547 6602.0094 2.4712837e+09 0.11726237 0.027508582 -25.184107 47.687454 6604.8306 2.3241438e+09 0.11573624 0.026564434 -25.300629 47.569371 6607.6517 2.1799463e+09 0.11420344 0.024420172 -25.418707 47.451293 6610.4728 2.0318468e+09 0.11076070 0.024454731 -25.542785 47.323614 6613.2939 1.8833997e+09 0.10936784 0.023681432 -25.670091 47.190773 6616.1150 1.7479871e+09 0.10790658 0.023300356 -25.781311 47.070388 6618.9362 1.6313799e+09 0.10735690 0.024477716 -25.889548 46.952311 6621.7573 1.5344212e+09 0.10641229 0.024838438 -26.001789 46.834220 6624.5784 1.4518503e+09 0.10440648 0.025171933 -26.114962 46.716125 6627.3995 1.3723521e+09 0.10219958 0.025471146 -26.224292 46.598045 6630.2207 1.3003721e+09 0.10048241 0.025928846 -26.332530 46.479968 6633.0418 1.2238884e+09 0.098415720 0.026159548 -26.450866 46.346745 6635.8629 1.1486458e+09 0.096202874 0.026529194 -26.572635 46.208370 6638.6840 1.0770174e+09 0.094531938 0.025641841 -26.681691 46.089063 6641.5052 1.0125833e+09 0.094685457 0.025150016 -26.789930 45.970984 6644.3263 9.5822705e+08 0.093140242 0.025378869 -26.893706 45.852907 6647.1474 9.1083778e+08 0.091235180 0.026515386 -26.997024 45.734831 6649.9685 8.6958472e+08 0.089542272 0.026298630 -27.100354 45.616739 6652.7896 8.3086348e+08 0.088184776 0.027467784 -27.203685 45.498644 6655.6108 7.8420360e+08 0.085737703 0.027862586 -27.317883 45.368134 6658.4319 7.3985956e+08 0.082913822 0.030827042 -27.433661 45.235644 6661.2530 6.9688870e+08 0.080389499 0.032663814 -27.536979 45.112646 6664.0741 6.6006704e+08 0.078197719 0.031934835 -27.640327 44.989607 6666.8953 6.2464138e+08 0.077943311 0.027083047 -27.751018 44.856779 6669.7164 5.8395703e+08 0.077076837 0.027619931 -27.860270 44.726834 6672.5375 5.4864522e+08 0.077028120 0.027191145 -27.963588 44.608756 6675.3586 5.1780387e+08 0.075226098 0.030485255 -28.066102 44.490675 6678.1797 4.9534857e+08 0.073467536 0.030816391 -28.164514 44.372582 6681.0009 4.7328137e+08 0.074118912 0.029658026 -28.263813 44.252553 6683.8220 4.4921312e+08 0.074648889 0.032393221 -28.368978 44.119712 6686.6431 4.2479899e+08 0.073417059 0.034135259 -28.471946 43.990067 6689.4642 4.0295517e+08 0.070172627 0.033598135 -28.570344 43.867069 6692.2854 3.8287006e+08 0.068886444 0.032433956 -28.670718 43.741196 6695.1065 3.6440822e+08 0.068048450 0.029839914 -28.775883 43.608358 6697.9276 3.4538550e+08 0.067097054 0.030208656 -28.877764 43.482684 6700.7487 3.2547014e+08 0.064734343 0.031223072 -28.976162 43.364606 6703.5699 3.0945499e+08 0.064070371 0.035101186 -29.077625 43.239843 6706.3910 2.9225024e+08 0.063852318 0.039126865 -29.182788 43.107004 6709.2121 2.7426360e+08 0.062913181 0.040997639 -29.284387 42.970575 6712.0332 2.5908895e+08 0.060221401 0.041891637 -29.384032 42.832179 6714.8543 2.4588271e+08 0.057486541 0.047367638 -29.478499 42.710844 6717.6755 2.3708078e+08 0.054612064 0.049832488 -29.571977 42.592766 6720.4966 2.2752695e+08 0.053096461 0.050362228 -29.670421 42.462773 6723.3177 2.1461736e+08 0.051704642 0.049546137 -29.770058 42.329935 6726.1388 2.0431149e+08 0.046903794 0.040952620 -29.875218 42.197094 6728.9600 1.9385514e+08 0.046030932 0.040988672 -29.977163 42.067115 6731.7811 1.8586129e+08 0.043735093 0.043304516 -30.065722 41.949035 6734.6022 1.7726499e+08 0.043122194 0.049317367 -30.156066 41.827683 6737.4233 1.6746981e+08 0.045271170 0.055484075 -30.255696 41.689309 6740.2444 1.6321754e+08 0.045246827 0.064467957 -30.353369 41.552890 6743.0656 1.5630314e+08 0.041202571 0.071489771 -30.447477 41.420032 6745.8867 1.4610602e+08 0.037961879 0.078939644 -30.544613 41.287183 6748.7078 1.3752979e+08 0.033763166 0.070740738 -30.644243 41.154342 6751.5289 1.2898234e+08 0.029561259 0.073935309 -30.732015 41.032449 6754.3501 1.2552161e+08 0.027069048 0.075650530 -30.815654 40.914372 6757.1712 1.2423890e+08 0.023917484 0.076220561 -30.906705 40.785829 6759.9923 1.1833103e+08 0.025002284 0.076059414 -31.000801 40.652987 6762.8134 1.1295255e+08 0.029808305 0.076738719 -31.094895 40.515154 6765.6346 1.1076662e+08 0.032752130 0.079647033 -31.188990 40.377308 6768.4557 1.0536863e+08 0.028935653 0.082495647 -31.283085 40.244470 6771.2768 1.0281928e+08 0.023377445 0.089976493 -31.377180 40.111630 6774.0979 97752259. 0.018134832 0.096818956 -31.471274 39.978790 6776.9190 92180327. 0.012860040 0.10366142 -31.562707 39.845940 6779.7402 89353562. 0.0076802665 0.11050388 -31.651280 39.713079 6782.5613 85461354. 0.0024525607 0.11734634 -31.743584 39.580233 6785.3824 83816833. -0.0026638509 0.12418881 -31.837680 39.447394 6788.2035 80303069. -0.0078386104 0.13103127 -31.937960 39.292562 6791.0247 75563973. -0.013049693 0.13787373 -32.035525 39.141710 6793.8458 71189129. -0.018216571 0.14471620 -32.124085 39.008869 6796.6669 69043915. -0.023205239 0.15155866 -32.212645 38.876030 6799.4880 68932050. -0.028028959 0.15840112 -32.301207 38.743191 6802.3091 67569946. -0.032933758 0.16524358 -32.389768 38.610351 6805.1303 65661713. -0.037872995 0.17208605 -32.478328 38.477510 6807.9514 63687726. -0.042809474 0.17892851 -32.572380 38.328192 6810.7725 61483551. -0.047757905 0.18577097 -32.665448 38.181828 6813.5936 61190014. -0.052526342 0.19261344 -32.754008 38.048987 6816.4148 57376731. -0.057610879 0.19945590 -32.839908 37.913486 6819.2359 53939463. -0.062674357 0.20629836 -32.922933 37.775112 6822.0570 52197094. -0.067557955 0.21314082 -33.013953 37.627676 6824.8781 48597079. -0.072662703 0.21998329 -33.107734 37.477625 6827.6993 46971198. -0.077527042 0.22682575 -33.190760 37.344784 6830.5204 45468718. -0.082372839 0.23366821 -33.277184 37.206505 6833.3415 44984278. -0.087077671 0.24051068 -33.372073 37.054684 6836.1626 47069586. -0.091456391 0.24735314 -33.458588 36.916259 6838.9837 49131144. -0.095883064 0.25419560 -33.541612 36.783420 6841.8049 47225228. -0.10075539 0.26103806 -33.635302 36.633517 6844.6260 44284999. -0.10576402 0.26788053 -33.728177 36.481696 6847.4471 41703656. -0.11075991 0.27472299 -33.816738 36.329878 6850.2682 38741427. -0.11584014 0.28156545 -33.897136 36.192052 6853.0894 36976991. -0.12076885 0.28840792 -33.974626 36.059211 6855.9105 36562152. -0.12549883 0.29525038 -34.068308 35.908708 6858.7316 34218709. -0.13057909 0.30209284 -34.160983 35.756888 6861.5527 32988330. -0.13552306 0.30893530 -34.249545 35.605067 6864.3738 32578783. -0.14036632 0.31577777 -34.338106 35.453248 6867.1950 29700900. -0.14579790 0.32262023 -34.426667 35.301429 6870.0161 30818222. -0.15043986 0.32946269 -34.515228 35.149608 6872.8372 29438100. -0.15573754 0.33630516 -34.603790 34.997786 6875.6583 27334241. -0.16139662 0.34314762 -34.692184 34.845964 6878.4795 27972245. -0.16644117 0.34999008 -34.774420 34.694146 6881.3006 28481500. -0.17167345 0.35683254 -34.859476 34.539507 6884.1217 28123777. -0.17737485 0.36367501 -34.948037 34.381361 6886.9428 29914072. -0.18260546 0.37051747 -35.036599 34.228685 6889.7639 29943154. -0.18875983 0.37735993 -35.127259 34.071770 6892.5851 29600041. -0.19562024 0.38420240 -35.223203 33.902024 6895.4062 32653557. -0.20174938 0.39104486 -35.306411 33.748934 6898.2273 29924259. -0.21242334 0.39788732 -35.388648 33.597114 6901.0484 28841232. -0.22724085 0.40472978 -35.470884 33.445294 6903.8696 29527821. -0.28049821 0.41157225 -35.563640 33.274048 6906.6907 29359623. -0.24642163 0.41841471 -35.653928 33.107361 6909.5118 31812439. -0.16676884 0.42525717 -35.736164 32.955543