# # 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 = 38.553896 km # Date (UTC) = 2011-01-10T08:29:18.667 # Date (julian) = 2455571.85368827 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6504.9798 1.5766829e+11 0.072200513 0.033784841 -13.571338 43.375695 6507.1736 1.2556298e+11 0.081791541 0.034446394 -13.661333 43.253440 6509.3675 1.0112594e+11 0.091455158 0.035107946 -13.743115 43.141527 6511.5613 8.4385376e+10 0.10145003 0.035769498 -13.825681 43.028830 6513.7552 7.1869058e+10 0.11176254 0.036431050 -13.911767 42.912614 6515.9490 6.2233157e+10 0.12242373 0.037092603 -13.997853 42.796397 6518.1429 5.4327730e+10 0.13340273 0.037754155 -14.080243 42.680180 6520.3368 4.7912081e+10 0.14476171 0.038415707 -14.162024 42.563964 6522.5306 4.2670871e+10 0.15505382 0.039056202 -14.246112 42.450053 6524.7245 3.8168937e+10 0.16142740 0.039684337 -14.332198 42.338142 6526.9183 3.4044432e+10 0.16640825 0.040630862 -14.418807 42.221789 6529.1122 3.0156019e+10 0.16973569 0.042414512 -14.507355 42.088967 6531.3061 2.6695461e+10 0.17311685 0.045674154 -14.594688 41.959901 6533.4999 2.3743293e+10 0.17604863 0.047732038 -14.676470 41.847989 6535.6938 2.1386622e+10 0.17656237 0.047923339 -14.758252 41.736078 6537.8876 1.9480398e+10 0.17785679 0.049103707 -14.840034 41.620480 6540.0815 1.7770007e+10 0.17809489 0.050892603 -14.921816 41.504263 6542.2754 1.6199677e+10 0.17573767 0.051106778 -15.001303 41.388046 6544.4692 1.4763819e+10 0.17340654 0.052024983 -15.078781 41.271830 6546.6631 1.3473749e+10 0.17076258 0.053010128 -15.156258 41.156517 6548.8569 1.2354106e+10 0.16799918 0.053923555 -15.233735 41.044604 6551.0508 1.1360201e+10 0.16585531 0.055253579 -15.311213 40.932691 6553.2446 1.0475928e+10 0.16405816 0.055212085 -15.388701 40.816948 6555.4385 9.6689681e+09 0.16166764 0.054484914 -15.466190 40.700716 6557.6324 8.9259776e+09 0.15927207 0.053469738 -15.543673 40.584492 6559.8262 8.2442268e+09 0.15650285 0.052293924 -15.621151 40.468276 6562.0201 7.6183381e+09 0.15344191 0.050860792 -15.697593 40.353094 6564.2139 7.0844644e+09 0.15010866 0.048674639 -15.770767 40.241181 6566.4078 6.5892473e+09 0.14752610 0.046952192 -15.843940 40.129267 6568.6017 6.0953396e+09 0.14524413 0.045218593 -15.931215 39.998177 6570.7955 5.6091414e+09 0.14322495 0.044587978 -16.019763 39.865356 6572.9894 5.1513090e+09 0.14100701 0.043663565 -16.094713 39.747221 6575.1832 4.7721621e+09 0.13822291 0.042190864 -16.167887 39.631006 6577.3771 4.4585421e+09 0.13494337 0.039628047 -16.241060 39.517205 6579.5710 4.1696726e+09 0.13132148 0.036756619 -16.314233 39.405292 6581.7648 3.9034249e+09 0.12794623 0.035365013 -16.387407 39.292355 6583.9587 3.6501899e+09 0.12450001 0.034536430 -16.460580 39.176138 6586.1525 3.4126769e+09 0.12113214 0.033169324 -16.533753 39.059922 6588.3464 3.1945014e+09 0.11807189 0.033264253 -16.602990 38.947643 6590.5402 2.9876151e+09 0.11414946 0.030057121 -16.671859 38.835731 6592.7341 2.7866536e+09 0.11039621 0.027360484 -16.743273 38.721274 6594.9280 2.5933008e+09 0.10694186 0.025663114 -16.816447 38.605057 6597.1218 2.4102728e+09 0.10379935 0.025684284 -16.888466 38.489995 6599.3157 2.2437735e+09 0.10212145 0.024948717 -16.957335 38.378081 6601.5095 2.0977374e+09 0.10202380 0.027285655 -17.026204 38.266168 6603.7034 1.9625739e+09 0.10072483 0.026246862 -17.095082 38.150174 6605.8973 1.8352178e+09 0.10033030 0.027417773 -17.163962 38.033942 6608.0911 1.7176068e+09 0.098145888 0.023729962 -17.232834 37.917720 6610.2850 1.6101080e+09 0.095119291 0.024275268 -17.301703 37.801503 6612.4788 1.5102020e+09 0.093202600 0.023962984 -17.370572 37.686572 6614.6727 1.4141873e+09 0.092097628 0.023477032 -17.439441 37.574659 6616.8666 1.3225743e+09 0.090644054 0.023418305 -17.508310 37.462746 6619.0604 1.2415693e+09 0.089844810 0.024540491 -17.577179 37.346635 6621.2543 1.1761158e+09 0.088807524 0.025005167 -17.646048 37.230418 6623.4481 1.1055209e+09 0.087000313 0.024657851 -17.721334 37.106581 6625.6420 1.0321722e+09 0.085601264 0.026163690 -17.800044 36.978679 6627.8358 9.5549452e+08 0.083715560 0.025639686 -17.869992 36.858015 6630.0297 8.8798125e+08 0.082274049 0.025928375 -17.934556 36.741799 6632.2236 8.3490104e+08 0.080317655 0.026059153 -17.999120 36.626857 6634.4174 7.8419384e+08 0.078648197 0.026357292 -18.063685 36.514946 6636.6113 7.3851147e+08 0.076921346 0.026312366 -18.128249 36.403035 6638.8051 6.9520612e+08 0.075567723 0.025636564 -18.192815 36.286934 6640.9990 6.5746436e+08 0.075936174 0.025148423 -18.257380 36.170717 6643.1929 6.2071187e+08 0.075434952 0.025221738 -18.321945 36.057296 6645.3867 5.8228932e+08 0.074633998 0.025632848 -18.386510 35.945383 6647.5806 5.4728549e+08 0.073941356 0.026743456 -18.451074 35.833471 6649.7744 5.1431026e+08 0.073517351 0.026566166 -18.515639 35.721560 6651.9683 4.8974306e+08 0.073367930 0.027226223 -18.580203 35.609631 6654.1622 4.6626914e+08 0.072997616 0.027967147 -18.644777 35.493401 6656.3560 4.3934968e+08 0.071558098 0.028335888 -18.709351 35.377167 6658.5499 4.1640823e+08 0.070377677 0.031036287 -18.780185 35.253012 6660.7437 3.9001219e+08 0.069359745 0.032302012 -18.853962 35.125132 6662.9376 3.6565066e+08 0.068495385 0.032518229 -18.918999 35.004788 6665.1314 3.4463646e+08 0.068188199 0.028331749 -18.979269 34.888554 6667.3253 3.2363466e+08 0.068006893 0.027222948 -19.039536 34.773720 6669.5192 3.0723806e+08 0.067308086 0.027822484 -19.099796 34.661807 6671.7130 2.9319293e+08 0.067416345 0.026875510 -19.160073 34.549894 6673.9069 2.7721633e+08 0.066876253 0.028815527 -19.224625 34.437983 6676.1007 2.6195168e+08 0.064777116 0.031778652 -19.289189 34.326072 6678.2946 2.4727169e+08 0.063945514 0.030739572 -19.350837 34.211243 6680.4885 2.3247326e+08 0.064549837 0.029546895 -19.411098 34.095027 6682.6823 2.2114316e+08 0.065263636 0.030945860 -19.474410 33.974668 6684.8762 2.0664163e+08 0.065259260 0.032698554 -19.543280 33.846765 6687.0700 1.9085636e+08 0.063620271 0.034303840 -19.607997 33.724005 6689.2639 1.7521848e+08 0.060961452 0.033778477 -19.663953 33.612093 6691.4578 1.6126235e+08 0.060011595 0.032893263 -19.719923 33.500167 6693.6516 1.5207546e+08 0.059022454 0.031380546 -19.780163 33.383972 6695.8455 1.4330056e+08 0.058732128 0.029704171 -19.840423 33.267755 6698.0393 1.3773777e+08 0.057855483 0.030271802 -19.900684 33.154445 6700.2332 1.3102559e+08 0.056057739 0.030840681 -19.960944 33.042534 6702.4270 1.2549371e+08 0.054646375 0.033217729 -20.022502 32.924996 6704.6209 1.1819245e+08 0.054729328 0.036482451 -20.086453 32.797093 6706.8148 1.1139864e+08 0.054191541 0.039864439 -20.147853 32.674292 6709.0086 1.0411826e+08 0.053278728 0.041127058 -20.203810 32.562380 6711.2025 97905779. 0.051120202 0.040922602 -20.259780 32.450455 6713.3963 93463139. 0.048648356 0.045120105 -20.320009 32.334269 6715.5902 89303764. 0.046345220 0.047982228 -20.380269 32.218053 6717.7841 84145904. 0.043782521 0.049825771 -20.443012 32.093977 6719.9779 76279349. 0.041784536 0.050440746 -20.506963 31.966075 6722.1718 69965471. 0.040996480 0.050392844 -20.565805 31.848392 6724.3656 64285179. 0.037290692 0.046873372 -20.621769 31.736463 6726.5595 64602265. 0.033961182 0.040956414 -20.680264 31.619473 6728.7534 63999388. 0.033107615 0.040695847 -20.744215 31.491571 6730.9472 64083486. 0.030978863 0.041677646 -20.805895 31.368210 6733.1411 61936796. 0.028815821 0.044690219 -20.861851 31.256298 6735.3349 58409951. 0.027535083 0.049648984 -20.917807 31.144385 6737.5288 57071418. 0.026684864 0.055820033 -20.969628 31.032473 6739.7226 56282619. 0.021579203 0.063710934 -21.021280 30.920561 6741.9165 56596864. -0.012591824 0.068372619 -21.080773 30.798455 6744.1104 54859214. 0.011127335 0.077878776 -21.144724 30.670553 6746.3042 50231384. 0.072118868 0.075450343 -21.201237 30.549718