# # 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 = 58.818536 km # Date (UTC) = 2013-12-10T10:27:37.466 # Date (julian) = 2456636.93585030 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6497.2278 5.6556076e+10 0.032288450 0.031447255 98.300744 29.073778 6499.4178 5.2358135e+10 0.039804155 0.032107663 98.350404 28.966822 6501.6079 4.8483060e+10 0.047569967 0.032768071 98.400085 28.859886 6503.7980 4.4972897e+10 0.055685476 0.033428479 98.453540 28.756747 6505.9880 4.1657050e+10 0.064191309 0.034088886 98.507011 28.653624 6508.1781 3.8589550e+10 0.073168017 0.034749294 98.559019 28.550501 6510.3682 3.5729225e+10 0.082655943 0.035409702 98.608670 28.447377 6512.5582 3.3227881e+10 0.092770173 0.036070110 98.658320 28.344254 6514.7483 3.1058598e+10 0.10359269 0.036730518 98.707973 28.238210 6516.9384 2.9074153e+10 0.11508683 0.037390926 98.757627 28.131268 6519.1284 2.7253981e+10 0.12723988 0.038051333 98.807281 28.024884 6521.3185 2.5537608e+10 0.14000766 0.038711741 98.856939 27.921747 6523.5085 2.3899822e+10 0.14896471 0.039305155 98.906596 27.818610 6525.6986 2.2260709e+10 0.15567170 0.039702484 98.959532 27.708665 6527.8887 2.0534560e+10 0.16241476 0.041361659 99.015390 27.592649 6530.0787 1.8839793e+10 0.16818928 0.043938926 99.069998 27.478461 6532.2688 1.7300211e+10 0.17259117 0.046908745 99.119652 27.371518 6534.4589 1.5972282e+10 0.17517409 0.048072919 99.169306 27.264576 6536.6489 1.4832443e+10 0.17600773 0.048371113 99.218958 27.159861 6538.8390 1.3791880e+10 0.17601557 0.049565225 99.268608 27.056738 6541.0291 1.2848222e+10 0.17458613 0.051317106 99.318259 26.953615 6543.2191 1.1991656e+10 0.17251427 0.051439402 99.367910 26.850492 6545.4092 1.1188668e+10 0.17046759 0.052459233 99.417561 26.747369 6547.5992 1.0443781e+10 0.16864753 0.053515246 99.465890 26.644241 6549.7893 9.7545051e+09 0.16699580 0.054770647 99.511730 26.541105 6551.9794 9.1261379e+09 0.16534123 0.055579525 99.557569 26.437968 6554.1694 8.5416780e+09 0.16305408 0.054835936 99.606187 26.334841 6556.3595 8.0058872e+09 0.16108731 0.053960273 99.655837 26.231717 6558.5496 7.5153783e+09 0.15904385 0.052771010 99.705066 26.128594 6560.7396 7.0769159e+09 0.15650658 0.051607442 99.750900 26.025471 6562.9297 6.6779834e+09 0.15427046 0.049995271 99.796733 25.922349 6565.1198 6.2880344e+09 0.15213413 0.048182417 99.847503 25.810762 6567.3098 5.8816680e+09 0.15026644 0.046355231 99.903361 25.690450 6569.4999 5.4803369e+09 0.14866392 0.044884959 99.957565 25.572973 6571.6899 5.1198395e+09 0.14726159 0.044314838 100.00340 25.469836 6573.8800 4.8081701e+09 0.14504022 0.042951298 100.04924 25.366700 6576.0701 4.5479192e+09 0.14283140 0.041290743 100.09508 25.263570 6578.2601 4.3140759e+09 0.14033156 0.038238835 100.14091 25.160447 6580.4502 4.0846505e+09 0.13765476 0.036104707 100.18675 25.057323 6582.6403 3.8827662e+09 0.13517330 0.035119562 100.23258 24.954201 6584.8303 3.6932699e+09 0.13266990 0.034063203 100.27841 24.851079 6587.0204 3.5086554e+09 0.13041562 0.033162886 100.32424 24.747956 6589.2105 3.3412502e+09 0.12841861 0.032628463 100.37007 24.644833 6591.4005 3.1735282e+09 0.12627226 0.028749977 100.41591 24.541709 6593.5906 3.0236120e+09 0.12440597 0.026553163 100.46174 24.441222 6595.7806 2.8905304e+09 0.12199000 0.025704526 100.50758 24.341905 6597.9707 2.7591747e+09 0.12028808 0.025416410 100.55385 24.241342 6600.1608 2.6169375e+09 0.11987022 0.025320383 100.60541 24.125326 6602.3508 2.4673043e+09 0.11955984 0.027217248 100.65697 24.009311 6604.5409 2.3248693e+09 0.11874841 0.026392441 100.70425 23.902930 6606.7310 2.2056182e+09 0.11814451 0.026190456 100.75009 23.799807 6608.9210 2.1095495e+09 0.11531527 0.023708020 100.79543 23.696684 6611.1111 2.0219391e+09 0.11247534 0.024887617 100.83744 23.593561 6613.3011 1.9379534e+09 0.11151984 0.023684082 100.87945 23.490439 6615.4912 1.8575514e+09 0.11013562 0.023266645 100.92342 23.387316 6617.6813 1.7810593e+09 0.10914660 0.023665124 100.96925 23.284193 6619.8713 1.7042439e+09 0.10843496 0.024736154 101.01508 23.181070 6622.0614 1.6333203e+09 0.10708850 0.024741649 101.06092 23.077934 6624.2515 1.5696562e+09 0.10505404 0.024996918 101.10676 22.974797 6626.4415 1.5095900e+09 0.10334347 0.026028355 101.15299 22.869302 6628.6316 1.4383879e+09 0.10169503 0.025959528 101.20025 22.757584 6630.8217 1.3682602e+09 0.099806877 0.025930327 101.24752 22.645865 6633.0117 1.2992118e+09 0.098281426 0.026154299 101.28981 22.542291 6635.2018 1.2442027e+09 0.096656266 0.026430048 101.33182 22.439169 6637.3918 1.2019410e+09 0.095258558 0.025969497 101.37509 22.336046 6639.5819 1.1562241e+09 0.094872085 0.025420087 101.42093 22.232923 6641.7720 1.1157795e+09 0.095374551 0.025150922 101.46676 22.129799 6643.9620 1.0715277e+09 0.094554692 0.025337874 101.51361 22.020564 6646.1521 1.0227466e+09 0.093761814 0.025998879 101.56087 21.908846 6648.3422 9.7699190e+08 0.092862002 0.027193330 101.60612 21.800421 6650.5322 9.3537008e+08 0.092347057 0.026377079 101.64814 21.697284 6652.7223 8.9840263e+08 0.091957581 0.027449252 101.69016 21.594147 6654.9124 8.7190820e+08 0.090782980 0.027647554 101.73217 21.493946 6657.1024 8.4213058e+08 0.088802100 0.029019912 101.77419 21.394642 6659.2925 8.1418025e+08 0.087193083 0.031773587 101.81698 21.292871 6661.4825 7.7939225e+08 0.085794914 0.032780720 101.86424 21.176856 6663.6726 7.3810929e+08 0.084502459 0.032296817 101.91151 21.060841 6665.8627 7.0701446e+08 0.084316108 0.027133613 101.95446 20.958535 6668.0527 6.7985809e+08 0.083470750 0.027517441 101.99648 20.859232 6670.2428 6.6107388e+08 0.082711788 0.027216148 102.03849 20.759153 6672.4329 6.4264917e+08 0.082157491 0.027130494 102.08051 20.656016 6674.6229 6.1871337e+08 0.080758581 0.029480269 102.12253 20.552880 6676.8130 5.9698131e+08 0.078276805 0.032237690 102.16761 20.444729 6679.0031 5.7330240e+08 0.077314653 0.030265249 102.21488 20.333010 6681.1931 5.4871660e+08 0.078214599 0.029805513 102.25981 20.223501 6683.3832 5.2743269e+08 0.078548100 0.031750134 102.29801 20.120378 6685.5732 5.1009228e+08 0.078084174 0.033310323 102.33620 20.017255 6687.7633 4.9570145e+08 0.075856325 0.033917197 102.38019 19.908641 6689.9534 4.7796832e+08 0.073821678 0.033157839 102.42745 19.796922 6692.1434 4.5517344e+08 0.072875581 0.032598769 102.47308 19.689070 6694.3335 4.3492994e+08 0.072126128 0.030793615 102.51510 19.589766 6696.5236 4.1880299e+08 0.071898674 0.029893314 102.55711 19.490462 6698.7136 4.0872197e+08 0.070727127 0.031197347 102.59979 19.379574 6700.9037 3.9608268e+08 0.068903325 0.031338008 102.64275 19.263560 6703.0937 3.7780309e+08 0.068638593 0.033909827 102.68537 19.153656 6705.2838 3.6341963e+08 0.068780537 0.037173169 102.72739 19.054339 6707.4739 3.5188793e+08 0.068413945 0.040118944 102.76941 18.955022 6709.6639 3.4163860e+08 0.067496766 0.040710245 102.81214 18.846427 6711.8540 3.2914706e+08 0.065465205 0.041663855 102.85511 18.734708 6714.0441 3.1400245e+08 0.063373568 0.047306721 102.89768 18.628214 6716.2341 3.0178217e+08 0.061682689 0.048746213 102.93969 18.528910 6718.4242 2.9274524e+08 0.059459887 0.050473064 102.98170 18.429606 6720.6143 2.8488052e+08 0.059112201 0.050348594 103.02448 18.316890 6722.8043 2.7546060e+08 0.058474341 0.049610854 103.06745 18.200875 6724.9944 2.6463795e+08 0.054339396 0.041622914 103.11042 18.086902 6727.1844 2.5455843e+08 0.052865310 0.040714649 103.15339 17.975183 6729.3745 2.4222231e+08 0.052444295 0.040795806 103.19566 17.865302 6731.5646 2.3310738e+08 0.050793614 0.042873633 103.23385 17.765999 6733.7546 2.2377771e+08 0.049882135 0.048021458 103.27204 17.666696 6735.9447 2.1474498e+08 0.051601589 0.050296303 103.31504 17.560806 6738.1348 2.0815329e+08 0.053110573 0.058063035 103.36232 17.449071 6740.3248 2.0104773e+08 0.052932882 0.064605276 103.40872 17.337339 6742.5149 1.9727386e+08 0.050242188 0.069865382 103.45169 17.225621 6744.7050 1.9057158e+08 0.046503466 0.078338677 103.49465 17.113902 6746.8950 1.8149492e+08 0.042422708 0.068581683 103.53762 17.002184 6749.0851 1.7283049e+08 0.042209633 0.072254638 103.58059 16.890465 6751.2751 1.6678221e+08 0.039070122 0.073828004 103.62094 16.785554 6753.4652 1.6561589e+08 0.036643373 0.074482792 103.65913 16.686250 6755.6553 1.6106908e+08 0.034430858 0.074318050 103.69733 16.586946 6757.8453 1.5633794e+08 0.033247161 0.074174686 103.73996 16.476096 6760.0354 1.4707537e+08 0.034060771 0.076128777 103.78293 16.364377 6762.2255 1.3710005e+08 0.038109878 0.077687154 103.82590 16.252658 6764.4155 1.3033334e+08 0.040965122 0.079503192 103.86887 16.140939 6766.6056 1.2411402e+08 0.041561910 0.081083603 103.91066 16.029221 6768.7957 1.2331851e+08 0.036756902 0.083718974 103.94933 15.917503 6770.9857 1.2130350e+08 0.032168976 0.089270497 103.98800 15.805785 6773.1758 1.1799211e+08 0.027711395 0.094582364 104.03075 15.698126 6775.3658 1.1519902e+08 0.023175965 0.099894231 104.07372 15.590688 6777.5559 1.1304180e+08 0.018578607 0.10520610 104.11669 15.480591 6779.7460 1.1046893e+08 0.013966989 0.11051796 104.15966 15.368873 6781.9360 1.0275806e+08 0.0093802683 0.11582983 104.20264 15.257154 6784.1261 97323774. 0.0047009660 0.12114170 104.24560 15.145435 6786.3162 92452695. -4.7294255e-05 0.12645356 104.28857 15.033716 6788.5062 90939142. -0.0048037698 0.13176543 104.32738 14.921998 6790.6963 90584070. -0.0095307491 0.13707730 104.36605 14.810280 6792.8864 87835285. -0.014337953 0.14238917 104.40748 14.701309 6795.0764 85901506. -0.019122351 0.14770103 104.45045 14.593888 6797.2665 81698517. -0.024065095 0.15301290 104.49380 14.480142 6799.4565 76281246. -0.029193294 0.15832477 104.53800 14.352461 6801.6466 73042975. -0.034235858 0.16363663 104.58185 14.229183 6803.8367 69404466. -0.039430093 0.16894850 104.62482 14.117464 6806.0267 67012740. -0.044605860 0.17426037 104.66779 14.005744 6808.2168 64046646. -0.050111119 0.17957223 104.70668 13.898102 6810.4069 60775770. -0.056140467 0.18488410 104.74536 13.790681 6812.5969 60995105. -0.062050313 0.19019597 104.78670 13.680589 6814.7870 61741364. -0.069096077 0.19550783 104.82967 13.568871 6816.9770 59622404. -0.081466153 0.20081970 104.87299 13.452459 6819.1671 57190965. -0.13564334 0.20613157 104.91719 13.324778 6821.3572 51661681. -0.10034648 0.21144343 104.96107 13.202318 6823.5472 46450753. 0.0011658941 0.21675530 105.00404 13.094896