# # 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 = 56.902505 km # Date (UTC) = 2015-01-16T10:20:41.632 # Date (julian) = 2457038.93103740 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6505.0232 8.2532720e+10 0.068881144 0.033797927 99.616003 39.375408 6507.2747 7.2040041e+10 0.078766628 0.034476880 99.697978 39.238540 6509.5263 6.4058667e+10 0.089014220 0.035155833 99.768656 39.114850 6511.7778 5.7854469e+10 0.099683853 0.035834787 99.839359 38.991139 6514.0294 5.2565574e+10 0.11071701 0.036513740 99.925024 38.854962 6516.2810 4.7544337e+10 0.12199164 0.037192693 100.01080 38.718597 6518.5325 4.2682239e+10 0.13344711 0.037871646 100.09158 38.577232 6520.7841 3.8379378e+10 0.14518316 0.038550599 100.17236 38.435866 6523.0357 3.4495141e+10 0.15429158 0.039187951 100.25314 38.294503 6525.2872 3.1149640e+10 0.16026407 0.039749435 100.33343 38.153998 6527.5388 2.8436419e+10 0.16512986 0.041107637 100.40411 38.030307 6529.7904 2.6250407e+10 0.16943127 0.043494745 100.47479 37.906617 6532.0419 2.4214476e+10 0.17291716 0.046719207 100.54943 37.773018 6534.2935 2.2190096e+10 0.17430652 0.048026655 100.62516 37.636703 6536.5450 2.0259833e+10 0.17469842 0.048278165 100.69684 37.510540 6538.7966 1.8621143e+10 0.17522533 0.049544586 100.76752 37.386850 6541.0482 1.7256547e+10 0.17459420 0.051310907 100.84093 37.253608 6543.2997 1.5887652e+10 0.17314681 0.051460560 100.91665 37.112242 6545.5513 1.4494450e+10 0.17106562 0.052460506 100.99521 36.970878 6547.8029 1.3143930e+10 0.16911404 0.053592678 101.07599 36.829515 6550.0544 1.1999167e+10 0.16725067 0.054998987 101.14837 36.700941 6552.3060 1.1072204e+10 0.16507355 0.055509749 101.21463 36.581668 6554.5576 1.0261629e+10 0.16270417 0.054844080 101.28388 36.455430 6556.8091 9.4953322e+09 0.16041705 0.053894171 101.35961 36.314067 6559.0607 8.7680309e+09 0.15762821 0.052380333 101.43070 36.178616 6561.3122 8.1490815e+09 0.15490578 0.051218814 101.49254 36.054924 6563.5638 7.6172952e+09 0.15221942 0.049276173 101.55537 35.930338 6565.8154 7.1093892e+09 0.14980288 0.047392533 101.63110 35.794022 6568.0669 6.5929706e+09 0.14823200 0.045710134 101.70683 35.657251 6570.3185 6.0686747e+09 0.14678415 0.044785576 101.78256 35.515888 6572.5701 5.6070694e+09 0.14507720 0.043903696 101.85677 35.376460 6574.8216 5.2395719e+09 0.14292891 0.042460381 101.91861 35.252769 6577.0732 4.9293906e+09 0.14044638 0.040105411 101.98046 35.129079 6579.3248 4.6435528e+09 0.13746455 0.036891967 102.04978 34.994711 6581.5763 4.3502469e+09 0.13502293 0.035422093 102.12046 34.858395 6583.8279 4.0777238e+09 0.13259347 0.034602631 102.18350 34.733002 6586.0794 3.8484277e+09 0.13004819 0.033170269 102.24534 34.609312 6588.3310 3.6417590e+09 0.12789880 0.033269390 102.31250 34.478029 6590.5826 3.4348295e+09 0.12487874 0.029978395 102.38319 34.341714 6592.8341 3.2361600e+09 0.12181966 0.027263327 102.44839 34.213233 6595.0857 3.0681800e+09 0.11859145 0.025632458 102.51023 34.089541 6597.3373 2.9141995e+09 0.11556866 0.025616300 102.57523 33.961344 6599.5888 2.7560496e+09 0.11417474 0.024965145 102.64591 33.825030 6601.8404 2.6041496e+09 0.11411596 0.027441465 102.71327 33.693465 6604.0920 2.4665525e+09 0.11292257 0.026125875 102.77512 33.569774 6606.3435 2.3480363e+09 0.11263936 0.026886676 102.83739 33.444661 6608.5951 2.2293347e+09 0.11015543 0.023716638 102.90302 33.308346 6610.8466 2.1053838e+09 0.10729364 0.024811927 102.96757 33.173694 6613.0982 1.9948955e+09 0.10634251 0.023609623 103.02500 33.050004 6615.3498 1.8987023e+09 0.10510312 0.023262293 103.08242 32.926314 6617.6013 1.8054454e+09 0.10418042 0.023638620 103.15136 32.791664 6619.8529 1.7108952e+09 0.10366258 0.024731704 103.22204 32.655349 6622.1045 1.6271009e+09 0.10247313 0.024730188 103.28097 32.530220 6624.3560 1.5608297e+09 0.10059645 0.025052888 103.33841 32.406511 6626.6076 1.4977468e+09 0.098837346 0.025816779 103.40096 32.274936 6628.8592 1.4249031e+09 0.097409161 0.026051920 103.46659 32.138621 6631.1107 1.3503115e+09 0.095614972 0.025942013 103.52694 32.010427 6633.3623 1.2871660e+09 0.094074596 0.026215503 103.58437 31.886736 6635.6138 1.2290928e+09 0.092317984 0.026491843 103.64492 31.758253 6637.8654 1.1747701e+09 0.090898462 0.025737562 103.71055 31.621939 6640.1170 1.1176805e+09 0.090517812 0.025256340 103.77115 31.492422 6642.3685 1.0691825e+09 0.090153636 0.025166777 103.82416 31.373148 6644.6201 1.0294461e+09 0.088770100 0.025410625 103.87888 31.250887 6646.8717 9.8149610e+08 0.087471777 0.026371348 103.94451 31.109523 6649.1232 9.3435886e+08 0.086315253 0.027463827 104.00819 30.971572 6651.3748 8.9001534e+08 0.086148230 0.026771387 104.06120 30.852299 6653.6264 8.5578394e+08 0.085759865 0.027845455 104.11421 30.733026 6655.8779 8.2228377e+08 0.084192663 0.027972973 104.17847 30.598572 6658.1295 7.8745579e+08 0.082810982 0.030290715 104.24410 30.462258 6660.3810 7.5509542e+08 0.081422076 0.031972348 104.29824 30.341452 6662.6326 7.2650615e+08 0.080104241 0.032689341 104.35126 30.222179 6664.8842 6.9869061e+08 0.079378753 0.028970943 104.40916 30.088627 6667.1357 6.6807297e+08 0.079038583 0.027153315 104.46974 29.947261 6669.3873 6.4169111e+08 0.077991015 0.027957920 104.53033 29.809258 6671.6389 6.1429206e+08 0.077964268 0.026874453 104.59091 29.672943 6673.8904 5.8917868e+08 0.077202520 0.028790915 104.64631 29.548301 6676.1420 5.6680534e+08 0.074828259 0.031805235 104.69932 29.429029 6678.3936 5.4318172e+08 0.073784854 0.030673389 104.75552 29.302577 6680.6451 5.2348929e+08 0.074277772 0.029580724 104.81611 29.166262 6682.8967 4.9864272e+08 0.074910686 0.031109641 104.87335 29.037454 6685.1482 4.7462172e+08 0.074653092 0.032861420 104.92636 28.918181 6687.3998 4.5587398e+08 0.072557245 0.034119923 104.98071 28.795001 6689.6514 4.3730418e+08 0.070022924 0.033429685 105.04130 28.653637 6691.9029 4.1733733e+08 0.068853510 0.032788230 105.10089 28.513263 6694.1545 3.9600103e+08 0.067832912 0.031044489 105.15643 28.376948 6696.4061 3.7753071e+08 0.067580294 0.029844496 105.21142 28.244304 6698.6576 3.6372120e+08 0.066443985 0.031120484 105.26443 28.125031 6700.9092 3.5406291e+08 0.064600871 0.031342090 105.31744 28.005758 6703.1608 3.4090840e+08 0.064366913 0.034077491 105.37285 27.870265 6705.4123 3.2866017e+08 0.064546588 0.037401622 105.42839 27.733950 6707.6639 3.1591186e+08 0.064276142 0.040091726 105.48148 27.614182 6709.9154 3.0362783e+08 0.063309393 0.040550276 105.53449 27.494908 6712.1670 2.9355400e+08 0.061166836 0.042140037 105.58928 27.363581 6714.4186 2.8080246e+08 0.059109008 0.047334877 105.64482 27.227267 6716.6701 2.6733464e+08 0.057247051 0.049388408 105.70035 27.090952 6718.9217 2.5476291e+08 0.054872475 0.051247890 105.75589 26.954637 6721.1733 2.4500402e+08 0.055296053 0.050356104 105.81142 26.818322 6723.4248 2.3827801e+08 0.053894499 0.049605877 105.86696 26.682006 6725.6764 2.2990181e+08 0.049768592 0.041153511 105.92056 26.558732 6727.9280 2.2240726e+08 0.048859708 0.039724086 105.97357 26.439458 6730.1795 2.1380483e+08 0.047516467 0.040625042 106.02532 26.311639 6732.4311 2.0612274e+08 0.045977743 0.043819570 106.07580 26.175325 6734.6826 2.0026506e+08 0.045642989 0.049312527 106.12892 26.039010 6736.9342 1.8878892e+08 0.047475120 0.053886835 106.18446 25.902693 6739.1858 1.7863831e+08 0.048189634 0.063053901 106.23999 25.769105 6741.4373 1.7187267e+08 0.046619050 0.067005997 106.29553 25.637838 6743.6889 1.6567137e+08 0.042141418 0.075694734 106.34718 25.513280 6745.9405 1.6329050e+08 0.040466914 0.078962249 106.39577 25.394007 6748.1920 1.5975077e+08 0.036410425 0.068027157 106.44642 25.269695 6750.4436 1.5333882e+08 0.033782047 0.072761579 106.50196 25.133381 6752.6952 1.5023681e+08 0.031097115 0.073330054 106.55590 24.997067 6754.9467 1.4876972e+08 0.029464714 0.074691031 106.60639 24.860751 6757.1983 1.4425980e+08 0.027034436 0.076138326 106.65856 24.724436 6759.4498 1.4086771e+08 0.028123583 0.075928509 106.71410 24.588120 6761.7014 1.3069348e+08 0.030945606 0.078026175 106.76785 24.453589 6763.9530 1.2036355e+08 0.035005192 0.079340061 106.81834 24.322322 6766.2045 1.1656296e+08 0.036639507 0.080176410 106.87071 24.189173 6768.4561 1.1228605e+08 0.032950255 0.082497178 106.92624 24.052858 6770.7077 1.1151863e+08 0.028543053 0.088596094 106.97980 23.916543 6772.9592 1.0515813e+08 0.024586131 0.094057126 107.03028 23.780229 6775.2108 99764057. 0.020622567 0.099518158 107.08077 23.645992 6777.4624 96614366. 0.016638817 0.10497919 107.13126 23.514725 6779.7139 94336910. 0.012649069 0.11044022 107.18175 23.381284 6781.9655 91216044. 0.0086767667 0.11590125 107.23224 23.244968 6784.2170 85185251. 0.0047433658 0.12136228 107.28272 23.108652 6786.4686 82952686. 0.00076783835 0.12682332 107.33321 22.972337 6788.7202 79923405. -0.0031911179 0.13228435 107.38370 22.838391 6790.9717 78037746. -0.0071605644 0.13774538 107.43418 22.707125 6793.2233 77940253. -0.011151007 0.14320641 107.48467 22.573392 6795.4749 72488098. -0.015058775 0.14866744 107.53515 22.437077 6797.7264 69350711. -0.018972761 0.15412848 107.58564 22.303327 6799.9780 65437388. -0.022860198 0.15958951 107.63613 22.172061 6802.2296 60047663. -0.026712073 0.16505054 107.68662 22.038132 6804.4811 61772059. -0.030682564 0.17051157 107.73711 21.901816 6806.7327 60502949. -0.034622841 0.17597260 107.79219 21.756300 6808.9842 58561549. -0.038573821 0.18143363 107.85110 21.603151 6811.2358 57542115. -0.042548019 0.18689467 107.90285 21.464292 6813.4874 53641514. -0.046933875 0.19235570 107.95334 21.327976 6815.7389 50298981. -0.053219596 0.19781673 107.99945 21.196044 6817.9905 49028788. -0.055530342 0.20327776 108.04489 21.064778 6820.2421 48184924. -0.055557401 0.20873879 108.09481 20.929032