# # 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 = 43.607153 km # Date (UTC) = 2013-01-21T09:05:31.346 # Date (julian) = 2456313.87883502 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6505.9204 5.8515801e+10 0.070731235 0.034068503 -15.280894 53.280210 6507.6189 5.5040848e+10 0.078915756 0.034580674 -15.387532 53.177380 6509.3174 5.1948697e+10 0.087359318 0.035092845 -15.494171 53.074550 6511.0159 4.9075718e+10 0.096026113 0.035605017 -15.609663 52.963288 6512.7144 4.6019717e+10 0.10480593 0.036117188 -15.729634 52.847759 6514.4128 4.2693818e+10 0.11364311 0.036629359 -15.849606 52.732230 6516.1113 3.9202106e+10 0.12249197 0.037141531 -15.969578 52.616702 6517.8098 3.5964578e+10 0.13148038 0.037653702 -16.086756 52.503864 6519.5083 3.3558294e+10 0.14088543 0.038165873 -16.189587 52.404842 6521.2067 3.1758754e+10 0.15065182 0.038678045 -16.292417 52.305820 6522.9052 3.0304055e+10 0.15816321 0.039154292 -16.402069 52.197930 6524.6037 2.8566823e+10 0.16366568 0.039641424 -16.517597 52.082403 6526.3022 2.6509427e+10 0.16711013 0.039984875 -16.633125 51.965601 6528.0006 2.4293466e+10 0.17140465 0.041442996 -16.748654 51.845629 6529.6991 2.2378792e+10 0.17481602 0.043349425 -16.863585 51.726416 6531.3976 2.0865590e+10 0.17687055 0.045807391 -16.962606 51.627395 6533.0961 1.9654833e+10 0.17935200 0.047560417 -17.061628 51.528374 6534.7946 1.8663127e+10 0.18032825 0.048166825 -17.165593 51.420762 6536.4930 1.7509901e+10 0.17941454 0.048231629 -17.276655 51.300814 6538.1915 1.6338063e+10 0.17939850 0.049249936 -17.385190 51.184204 6539.8900 1.5375595e+10 0.17899616 0.050720933 -17.480403 51.085182 6541.5885 1.4541423e+10 0.17666910 0.051135695 -17.575616 50.986159 6543.2869 1.3775575e+10 0.17500167 0.051457202 -17.679302 50.878326 6544.9854 1.2968901e+10 0.17393728 0.052443738 -17.790387 50.762799 6546.6839 1.2139677e+10 0.17193095 0.053027261 -17.895896 50.650868 6548.3824 1.1389296e+10 0.17041450 0.053781835 -17.987300 50.548038 6550.0808 1.0793514e+10 0.16945196 0.055005603 -18.078704 50.445208 6551.7793 1.0301631e+10 0.16779159 0.055509307 -18.170109 50.344883 6553.4778 9.8732800e+09 0.16591626 0.055094881 -18.261513 50.245862 6555.1763 9.4813283e+09 0.16435205 0.054705246 -18.353262 50.146172 6556.8748 9.0188347e+09 0.16233703 0.053884520 -18.455460 50.026201 6558.5732 8.5002404e+09 0.16004330 0.052750837 -18.557658 49.906229 6560.2717 7.9919367e+09 0.15798920 0.052029325 -18.648446 49.802627 6561.9702 7.5704379e+09 0.15553896 0.050894593 -18.736041 49.703605 6563.6687 7.2048589e+09 0.15266745 0.049154873 -18.825911 49.601321 6565.3671 6.8167615e+09 0.15059793 0.047901500 -18.928110 49.481349 6567.0656 6.4080247e+09 0.14859237 0.046561703 -19.030309 49.361376 6568.7641 6.0309798e+09 0.14629740 0.045069273 -19.119289 49.256922 6570.4626 5.7213409e+09 0.14454334 0.044725894 -19.206885 49.154093 6572.1611 5.4709409e+09 0.14226479 0.044137925 -19.293416 49.052328 6573.8595 5.2493429e+09 0.13924540 0.042967729 -19.377203 48.953306 6575.5580 5.0406413e+09 0.13686069 0.041814851 -19.460990 48.854284 6577.2565 4.8024808e+09 0.13461494 0.039817496 -19.553909 48.741565 6578.9550 4.5389976e+09 0.13211273 0.037141618 -19.651664 48.621593 6580.6534 4.2766500e+09 0.13045906 0.035916881 -19.743786 48.510070 6582.3519 4.0499010e+09 0.12890976 0.035198028 -19.827574 48.411049 6584.0504 3.8694033e+09 0.12691743 0.034488060 -19.911362 48.312028 6585.7489 3.7045668e+09 0.12517286 0.033372068 -19.995149 48.210045 6587.4473 3.5428009e+09 0.12371602 0.033257485 -20.078936 48.107215 6589.1458 3.3824263e+09 0.12182631 0.032756672 -20.162145 48.004385 6590.8443 3.2471875e+09 0.11953870 0.029491531 -20.242124 47.901555 6592.5428 3.1197874e+09 0.11751204 0.027546321 -20.322104 47.798725 6594.2413 2.9886071e+09 0.11519248 0.026040085 -20.409088 47.689226 6595.9397 2.8439889e+09 0.11261841 0.025721024 -20.502380 47.573721 6597.6382 2.6895580e+09 0.11086261 0.025521332 -20.592009 47.461705 6599.3367 2.5456409e+09 0.10935058 0.024949980 -20.671988 47.358874 6601.0352 2.4272278e+09 0.10889097 0.027062251 -20.751967 47.256044 6602.7336 2.3322493e+09 0.10762006 0.026890572 -20.829473 47.153214 6604.4321 2.2363598e+09 0.10613193 0.026327855 -20.905642 47.050384 6606.1306 2.1510308e+09 0.10515759 0.027269283 -20.981812 46.947644 6607.8291 2.0647896e+09 0.10285608 0.024069884 -21.057983 46.848622 6609.5276 1.9942154e+09 0.099758202 0.023862639 -21.134154 46.749599 6611.2260 1.9272495e+09 0.096864079 0.024814316 -21.215379 46.642237 6612.9245 1.8389583e+09 0.095852809 0.023629996 -21.304247 46.522265 6614.6230 1.7406014e+09 0.094905225 0.023511281 -21.391240 46.404823 6616.3215 1.6423540e+09 0.093863176 0.023332752 -21.467411 46.301995 6618.0199 1.5629263e+09 0.093651387 0.023785852 -21.543581 46.199166 6619.7184 1.5001136e+09 0.093183688 0.024699256 -21.617764 46.096337 6621.4169 1.4426631e+09 0.092405421 0.024951266 -21.690126 45.993506 6623.1154 1.3860617e+09 0.091271199 0.024534569 -21.762489 45.890676 6624.8138 1.3340130e+09 0.090181829 0.025297958 -21.838263 45.791258 6626.5123 1.2813130e+09 0.088809410 0.025938155 -21.914433 45.692236 6628.2108 1.2297654e+09 0.087775204 0.025788683 -21.989573 45.592184 6629.9093 1.1856850e+09 0.086709717 0.025944704 -22.061935 45.489354 6631.6078 1.1395568e+09 0.085231396 0.025992501 -22.134297 45.386524 6633.3062 1.0965350e+09 0.084167426 0.026205718 -22.211572 45.272642 6635.0047 1.0460716e+09 0.083103478 0.026400494 -22.291553 45.152672 6636.7032 9.9030751e+08 0.081878877 0.026276676 -22.368530 45.039460 6638.4017 9.3839978e+08 0.081132008 0.025654143 -22.440892 44.936630 6640.1001 8.9263789e+08 0.081286697 0.025258399 -22.513254 44.833800 6641.7986 8.5489888e+08 0.081315738 0.025151012 -22.582688 44.733896 6643.4971 8.2187828e+08 0.080552264 0.025267674 -22.651241 44.634873 6645.1956 7.9255444e+08 0.079715793 0.025543303 -22.719795 44.535306 6646.8941 7.6314411e+08 0.078620589 0.026382937 -22.788348 44.432476 6648.5925 7.3624899e+08 0.077584870 0.027360925 -22.856901 44.329646 6650.2910 7.0672575e+08 0.077195768 0.026321856 -22.925455 44.226816 6651.9895 6.7752131e+08 0.076809199 0.027242461 -22.994008 44.123986 6653.6880 6.4955842e+08 0.076491903 0.027876909 -23.062561 44.021156 6655.3864 6.2410102e+08 0.075497357 0.027769893 -23.131115 43.918327 6657.0849 6.0025466e+08 0.074201263 0.028999609 -23.199668 43.815499 6658.7834 5.7556467e+08 0.073153983 0.031450440 -23.267209 43.713682 6660.4819 5.5391220e+08 0.072314089 0.032063993 -23.331954 43.614660 6662.1803 5.3177096e+08 0.071329961 0.032943086 -23.396699 43.515637 6663.8788 5.1063440e+08 0.070337537 0.032239669 -23.471197 43.403205 6665.5773 4.8474182e+08 0.070592082 0.027601203 -23.551178 43.283232 6667.2758 4.5908129e+08 0.070324330 0.027204756 -23.625224 43.169938 6668.9743 4.3278393e+08 0.069416193 0.028332920 -23.689969 43.067108 6670.6727 4.0906131e+08 0.069747757 0.027016966 -23.754714 42.964278 6672.3712 3.9396568e+08 0.069559915 0.027094759 -23.819458 42.861448 6674.0697 3.8123032e+08 0.068852379 0.029013576 -23.884203 42.758618 6675.7682 3.7017811e+08 0.067094311 0.031269673 -23.948948 42.656314 6677.4666 3.5206134e+08 0.066043643 0.031694839 -24.013693 42.557294 6679.1651 3.3405711e+08 0.065693501 0.030131325 -24.078437 42.458273 6680.8636 3.2018152e+08 0.066621917 0.029627903 -24.141225 42.357309 6682.5621 3.1186795e+08 0.067116073 0.030853988 -24.202150 42.254497 6684.2606 3.0555807e+08 0.067085989 0.032667314 -24.263076 42.151684 6685.9590 2.9512572e+08 0.066645901 0.033717807 -24.324012 42.048855 6687.6575 2.8509605e+08 0.064789691 0.033976203 -24.384948 41.946025 6689.3560 2.7521543e+08 0.062844578 0.033695584 -24.446877 41.843194 6691.0545 2.6960521e+08 0.062216325 0.032988414 -24.511622 41.740364 6692.7529 2.6355028e+08 0.061674371 0.031890989 -24.576367 41.637534 6694.4514 2.5382244e+08 0.061131084 0.030628347 -24.645143 41.526642 6696.1499 2.4463739e+08 0.061092418 0.029738062 -24.716238 41.411114 6697.8484 2.3090941e+08 0.060617071 0.030198628 -24.783427 41.300468 6699.5468 2.2587539e+08 0.059436771 0.031085851 -24.844363 41.197638 6701.2453 2.1938051e+08 0.058016964 0.031769403 -24.905299 41.094808 6702.9438 2.1291464e+08 0.057948742 0.033630358 -24.963345 40.991978 6704.6423 2.0749590e+08 0.058081074 0.036492945 -25.020473 40.889148 6706.3408 1.9832414e+08 0.057961653 0.039039460 -25.078107 40.786318 6708.0392 1.9358938e+08 0.057722779 0.040086299 -25.139044 40.683487 6709.7377 1.8620289e+08 0.056831233 0.040663325 -25.199980 40.580656 6711.4362 1.7888206e+08 0.055243038 0.041188492 -25.258984 40.479759 6713.1347 1.7247852e+08 0.053689903 0.044173671 -25.316112 40.380738 6714.8331 1.6147928e+08 0.052097603 0.047366044 -25.373239 40.281717 6716.5316 1.5397199e+08 0.050525702 0.049184383 -25.438764 40.164225 6718.2301 1.5131113e+08 0.048793336 0.050170769 -25.505415 40.044253 6719.9286 1.4545375e+08 0.047943252 0.050487629 -25.566056 39.935100 6721.6270 1.4215524e+08 0.048063090 0.050492832 -25.623184 39.832270 6723.3255 1.3468619e+08 0.046797191 0.049550495 -25.680311 39.729461 6725.0240 1.2896082e+08 0.043016674 0.041561027 -25.737439 39.630440 6726.7225 1.2723570e+08 0.041669895 0.040957883 -25.794566 39.531419 6728.4210 1.2018685e+08 0.041399586 0.040224735 -25.851694 39.430952 6730.1194 1.1153402e+08 0.040156589 0.040542662 -25.908821 39.328122 6731.8179 1.0450695e+08 0.038781537 0.043377821 -25.965949 39.225292 6733.5164 1.0094549e+08 0.038010862 0.046727936 -26.023077 39.122462 6735.2149 99551360. 0.038662125 0.049521529 -26.080205 39.019631 6736.9133 96454937. 0.039995749 0.053807956 -26.137985 38.915170 6738.6118 89766238. 0.040592679 0.060689448 -26.200193 38.799641 6740.3103 87431712. 0.040106192 0.064580453 -26.262401 38.684112 6742.0088 83362055. 0.038226450 0.068632133 -26.316806 38.579732 6743.7073 81976096. 0.034433170 0.075818547 -26.370125 38.476903 6745.4057 82140903. 0.032968476 0.078737452 -26.424404 38.374074 6747.1042 78308561. 0.028298278 0.067325287 -26.481531 38.271244 6748.8027 77906033. 0.028357495 0.071239849 -26.538659 38.168414 6750.5012 71877515. 0.025064066 0.072859885 -26.593401 38.067969 6752.1996 69186062. 0.021701301 0.073903457 -26.646721 37.968947 6753.8981 69554260. 0.019781345 0.075883757 -26.700056 37.869851 6755.5966 65575261. 0.014586124 0.074343777 -26.757796 37.749961 6757.2951 62498977. -0.0066217806 0.075844596 -26.815549 37.630012 6758.9935 57957292. 0.0096944925 0.075806310 -26.869977 37.522900 6760.6920 56959035. 0.046895556 0.077380931 -26.923296 37.420071