# # 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 = 50.116963 km # Date (UTC) = 2014-12-03T09:39:50.648 # Date (julian) = 2456994.90266953 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6518.7439 2.7960506e+10 0.13555166 0.037935369 -23.785461 54.181431 6520.5272 2.6230697e+10 0.14445199 0.038473122 -23.881872 54.109901 6522.3105 2.4858671e+10 0.15271698 0.038998554 -23.978283 54.038371 6524.0938 2.3539873e+10 0.15676752 0.039460281 -24.080281 53.961073 6525.8771 2.2060429e+10 0.15977578 0.039682112 -24.188745 53.877100 6527.6604 2.0492855e+10 0.16370759 0.041195945 -24.297209 53.793128 6529.4437 1.9088938e+10 0.16588083 0.042942616 -24.396499 53.716683 6531.2270 1.7965069e+10 0.16734277 0.045559151 -24.489811 53.645143 6533.0104 1.7036666e+10 0.16969514 0.047523991 -24.583124 53.573603 6534.7937 1.6136567e+10 0.17037372 0.048166579 -24.680987 53.497209 6536.5770 1.5123554e+10 0.16965178 0.048306748 -24.785952 53.413238 6538.3603 1.4145972e+10 0.16989068 0.049332129 -24.890917 53.329267 6540.1436 1.3240082e+10 0.17019433 0.050921950 -24.989672 53.251919 6541.9269 1.2478570e+10 0.16881970 0.051025934 -25.082972 53.180389 6543.7102 1.1870726e+10 0.16776969 0.051568300 -25.176273 53.108859 6545.4936 1.1299644e+10 0.16714947 0.052459989 -25.268588 53.036342 6547.2769 1.0750813e+10 0.16660391 0.053392653 -25.358778 52.961702 6549.0602 1.0244558e+10 0.16514380 0.054027612 -25.448969 52.887061 6550.8435 9.7398337e+09 0.16425751 0.055196564 -25.540305 52.811472 6552.6268 9.2373001e+09 0.16354465 0.055428999 -25.641771 52.727501 6554.4101 8.6875441e+09 0.16195806 0.054840987 -25.743236 52.643530 6556.1934 8.1571044e+09 0.16023959 0.053984687 -25.841960 52.562585 6557.9768 7.6956397e+09 0.15911941 0.053253877 -25.932163 52.491044 6559.7601 7.3401003e+09 0.15739281 0.052301391 -26.022366 52.419503 6561.5434 7.0444269e+09 0.15522173 0.051104916 -26.112789 52.347608 6563.3267 6.7255328e+09 0.15341996 0.049550460 -26.210756 52.263637 6565.1100 6.3907927e+09 0.15206852 0.048193485 -26.308723 52.179666 6566.8933 6.0370198e+09 0.15068006 0.046677537 -26.404835 52.097284 6568.6766 5.7149702e+09 0.14936870 0.045149676 -26.491916 52.022643 6570.4599 5.4523233e+09 0.14862387 0.044726984 -26.578997 51.948002 6572.2433 5.2230660e+09 0.14748886 0.044090848 -26.666077 51.873361 6574.0266 4.9847365e+09 0.14565687 0.042842243 -26.760213 51.789810 6575.8099 4.7215725e+09 0.14429342 0.041562138 -26.854682 51.705839 6577.5932 4.4507795e+09 0.14279333 0.039288600 -26.948134 51.622771 6579.3765 4.2126776e+09 0.14077272 0.036863512 -27.032104 51.548131 6581.1598 4.0380244e+09 0.13879230 0.035548211 -27.116074 51.473490 6582.9431 3.8768510e+09 0.13730595 0.035037140 -27.200044 51.398849 6584.7265 3.7156200e+09 0.13545303 0.034119784 -27.293267 51.315984 6586.5098 3.5419113e+09 0.13346573 0.033164706 -27.387736 51.232013 6588.2931 3.3602390e+09 0.13188731 0.033282056 -27.481882 51.148337 6590.0764 3.2089928e+09 0.12985934 0.030919964 -27.562759 51.076791 6591.8597 3.0875314e+09 0.12747885 0.028231831 -27.643630 51.005250 6593.6430 2.9806682e+09 0.12550043 0.026504407 -27.724501 50.933709 6595.4263 2.8711524e+09 0.12353922 0.025667783 -27.813535 50.852120 6597.2096 2.7457550e+09 0.12184659 0.025656570 -27.904505 50.768149 6598.9930 2.6174456e+09 0.12045882 0.024933091 -27.995474 50.684178 6600.7763 2.5084786e+09 0.12073311 0.026585752 -28.076838 50.609073 6602.5596 2.4211565e+09 0.12007637 0.027039103 -28.157699 50.534432 6604.3429 2.3461662e+09 0.11894120 0.026274880 -28.238559 50.459790 6606.1262 2.2676173e+09 0.11849450 0.027277159 -28.324277 50.378293 6607.9095 2.1743814e+09 0.11667369 0.023911018 -28.411748 50.294322 6609.6928 2.0743023e+09 0.11421963 0.023911738 -28.499218 50.210351 6611.4762 1.9832805e+09 0.11193459 0.024654809 -28.578167 50.134560 6613.2595 1.9113123e+09 0.11104341 0.023668790 -28.655918 50.059919 6615.0428 1.8537902e+09 0.10979202 0.023252848 -28.733668 49.985278 6616.8261 1.7941007e+09 0.10829563 0.023411955 -28.817856 49.902144 6618.6094 1.7335494e+09 0.10747642 0.024230972 -28.905339 49.814660 6620.3927 1.6593317e+09 0.10670395 0.024893752 -28.992823 49.727176 6622.1760 1.5904327e+09 0.10537735 0.024711137 -29.077484 49.642515 6623.9593 1.5214164e+09 0.10346284 0.024847250 -29.161456 49.558544 6625.7427 1.4560805e+09 0.10235784 0.026283825 -29.245428 49.474573 6627.5260 1.4011700e+09 0.10028769 0.025519987 -29.320577 49.399424 6629.3093 1.3527155e+09 0.098914509 0.026053184 -29.395217 49.324783 6631.0926 1.3139437e+09 0.097157556 0.025940173 -29.469857 49.250142 6632.8759 1.2781799e+09 0.096003218 0.026137375 -29.551311 49.168689 6634.6592 1.2312629e+09 0.094869482 0.026374930 -29.635282 49.084718 6636.4425 1.1783273e+09 0.093726082 0.026377895 -29.719254 49.000747 6638.2259 1.1300957e+09 0.093036407 0.025661802 -29.795089 48.924912 6640.0092 1.0910152e+09 0.093086999 0.025269530 -29.869730 48.850271 6641.7925 1.0603944e+09 0.093121687 0.025150991 -29.944370 48.775629 6643.5758 1.0287798e+09 0.092319884 0.025279557 -30.022841 48.694861 6645.3591 9.9417614e+08 0.091485425 0.025619915 -30.103314 48.610889 6647.1424 9.5335473e+08 0.090505653 0.026512767 -30.183788 48.526916 6648.9257 9.1555581e+08 0.089404212 0.027583977 -30.257127 48.450388 6650.7091 8.8002818e+08 0.089081941 0.026417559 -30.328667 48.375739 6652.4924 8.4869190e+08 0.088592755 0.027385991 -30.400207 48.301089 6654.2757 8.2418811e+08 0.087639546 0.027918784 -30.476959 48.218958 6656.0590 7.9688110e+08 0.085915177 0.028075195 -30.557432 48.131487 6657.8423 7.6857604e+08 0.084573149 0.029878159 -30.637905 48.044017 6659.6256 7.4123411e+08 0.083112882 0.031704094 -30.715839 47.959084 6661.4089 7.0786222e+08 0.081786265 0.032743228 -30.792813 47.875111 6663.1922 6.7598575e+08 0.080685835 0.032429936 -30.869787 47.791139 6664.9756 6.4790423e+08 0.080079406 0.028636555 -30.939343 47.715261 6666.7589 6.2800402e+08 0.079488502 0.027056471 -31.007764 47.640621 6668.5422 6.1213691e+08 0.078287257 0.027950571 -31.076185 47.565981 6670.3255 5.9497057e+08 0.077935824 0.027177833 -31.150182 47.485257 6672.1088 5.7224583e+08 0.077640032 0.026942670 -31.227156 47.401284 6673.8921 5.4991300e+08 0.077007917 0.028793459 -31.304130 47.317312 6675.6754 5.3525865e+08 0.075214725 0.031092074 -31.381104 47.230563 6677.4588 5.1519395e+08 0.073993181 0.031706051 -31.458079 47.143092 6679.2421 4.9807983e+08 0.073601525 0.030067737 -31.535053 47.055621 6681.0254 4.7501111e+08 0.074561082 0.029676830 -31.608753 46.971425 6682.8087 4.5347024e+08 0.075143691 0.031042417 -31.682228 46.887454 6684.5920 4.3443037e+08 0.075105333 0.032684134 -31.755070 46.804207 6686.3753 4.1529332e+08 0.074259710 0.033979452 -31.820389 46.729556 6688.1586 4.0086150e+08 0.072163456 0.033821809 -31.885708 46.654904 6689.9419 3.9262235e+08 0.070480775 0.033168119 -31.951027 46.580253 6691.7253 3.8460774e+08 0.069474457 0.032830149 -32.023382 46.497562 6693.5086 3.7307352e+08 0.068687211 0.031429616 -32.096857 46.413591 6695.2919 3.6022430e+08 0.068373242 0.029805857 -32.170332 46.329594 6697.0752 3.4311378e+08 0.067896182 0.030100782 -32.243808 46.242134 6698.8585 3.3311854e+08 0.066747643 0.031396229 -32.317285 46.154663 6700.6418 3.2162852e+08 0.065245178 0.031143781 -32.390249 46.067705 6702.4251 3.0879176e+08 0.064378163 0.033216209 -32.460225 45.983732 6704.2085 2.9809650e+08 0.064532398 0.036279916 -32.530202 45.899760 6705.9918 2.8786871e+08 0.064432371 0.038431773 -32.601188 45.815787 6707.7751 2.7907308e+08 0.064057490 0.040075797 -32.674663 45.731815 6709.5584 2.6735603e+08 0.063231626 0.040777376 -32.748139 45.647842 6711.3417 2.5974646e+08 0.061620083 0.041081005 -32.820109 45.562364 6713.1250 2.4753978e+08 0.060102062 0.044138809 -32.890085 45.474893 6714.9083 2.3946952e+08 0.058499551 0.047371697 -32.960062 45.387423 6716.6917 2.3218039e+08 0.056867332 0.049420098 -33.023815 45.307288 6718.4750 2.2394066e+08 0.055053304 0.050552135 -33.082912 45.232638 6720.2583 2.2056140e+08 0.054603652 0.050389840 -33.142010 45.157988 6722.0416 2.1465545e+08 0.054544895 0.050553786 -33.204993 45.080009 6723.8249 2.0604400e+08 0.052843985 0.049829007 -33.274970 44.996037 6725.6082 1.9882955e+08 0.049172495 0.041196095 -33.344947 44.912064 6727.3915 1.9340513e+08 0.048059339 0.040438754 -33.413177 44.826346 6729.1748 1.8479919e+08 0.047588199 0.040928889 -33.479654 44.738875 6730.9582 1.7979450e+08 0.045959699 0.041692655 -33.546131 44.651405 6732.7415 1.7545907e+08 0.044763836 0.043876712 -33.612609 44.566177 6734.5248 1.6899344e+08 0.044266644 0.049322025 -33.679086 44.482205 6736.3081 1.6259073e+08 0.045583505 0.051519793 -33.745564 44.398234 6738.0914 1.5481628e+08 0.046422417 0.057824359 -33.812042 44.314262 6739.8747 1.5161497e+08 0.046057938 0.063897050 -33.878521 44.230289 6741.6580 1.5275580e+08 0.044163130 0.067635459 -33.944999 44.146317 6743.4414 1.4718687e+08 0.040355681 0.074024796 -34.020260 44.047552 6745.2247 1.3902334e+08 0.038007968 0.078661334 -34.096236 43.947583 6747.0080 1.3064709e+08 0.033176008 0.067358414 -34.166701 43.854397 6748.7913 1.2544083e+08 0.033130703 0.071179922 -34.229680 43.770426 6750.5746 1.2699250e+08 0.030189113 0.072985296 -34.292659 43.686455 6752.3579 1.2260529e+08 0.027319862 0.073720296 -34.357618 43.602484 6754.1412 1.2270918e+08 0.026147338 0.075986350 -34.424095 43.518511 6755.9245 1.1635654e+08 0.023814007 0.074199990 -34.490572 43.434539 6757.7079 1.0725233e+08 0.022589283 0.074591887 -34.554573 43.348090 6759.4912 1.0183902e+08 0.022968553 0.075938483 -34.617553 43.260619 6761.2745 94650949. 0.023713715 0.077990903 -34.680532 43.173148 6763.0578 95721486. 0.027850012 0.076613799 -34.743511 43.088650 6764.8411 94565905. 0.029685321 0.079523581 -34.806490 43.004677 6766.6244 91866608. 0.029716261 0.081126215 -34.869469 42.920705 6768.4077 88424128. 0.025966348 0.082323176 -34.928988 42.836721 6770.1911 84508531. 0.021784247 0.087343093 -34.988478 42.752738 6771.9744 81683527. 0.017925676 0.091668413 -35.049639 42.666614 6773.7577 77249465. 0.013666422 0.095993732 -35.121617 42.566645 6775.5410 72785693. 0.0088470527 0.10031905 -35.193594 42.466676 6777.3243 69115266. 0.0030476864 0.10464437 -35.257659 42.376835 6779.1076 64629596. -0.0062542427 0.10896969 -35.317138 42.292863 6780.8909 61792992. -0.043159101 0.11329501 -35.376618 42.208891 6782.6742 56578495. -0.020840569 0.11762033 -35.438810 42.124919 6784.4576 53861631. 0.041796347 0.12194565 -35.501789 42.040947