# # 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 = 54.295394 km # Date (UTC) = 2013-01-03T09:56:56.247 # Date (julian) = 2456295.91453990 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6509.4598 4.6868034e+10 0.092473607 0.035135780 104.42509 36.430160 6511.6678 4.3429807e+10 0.10338132 0.035801594 104.49055 36.326192 6513.8758 4.0623496e+10 0.11459163 0.036467408 104.55601 36.222225 6516.0838 3.7961752e+10 0.12599820 0.037133222 104.62450 36.108038 6518.2917 3.5224987e+10 0.13753029 0.037799037 104.69381 35.991073 6520.4997 3.2338552e+10 0.14913229 0.038464851 104.76313 35.874099 6522.7077 2.9464602e+10 0.15886718 0.039102578 104.83245 35.757116 6524.9157 2.6851300e+10 0.16513021 0.039752274 104.90046 35.642344 6527.1237 2.4622002e+10 0.16953330 0.040806286 104.96207 35.538376 6529.3317 2.2762067e+10 0.17269998 0.042764160 105.02369 35.434409 6531.5397 2.1056119e+10 0.17572047 0.046014213 105.08723 35.322996 6533.7477 1.9287334e+10 0.17751754 0.047837332 105.15220 35.206030 6535.9557 1.7584132e+10 0.17699470 0.047809727 105.21629 35.092503 6538.1637 1.6130081e+10 0.17817989 0.049236380 105.27790 34.988535 6540.3717 1.4912482e+10 0.17792310 0.051029686 105.33951 34.884568 6542.5797 1.3824314e+10 0.17604668 0.051222307 105.40338 34.771925 6544.7876 1.2726758e+10 0.17436415 0.052283302 105.46836 34.654962 6546.9956 1.1648639e+10 0.17187037 0.053283776 105.53334 34.537998 6549.2036 1.0644397e+10 0.16869910 0.054173796 105.59832 34.421033 6551.4116 9.7619067e+09 0.16616888 0.055380237 105.66293 34.304921 6553.6196 9.0309686e+09 0.16351994 0.055023595 105.72070 34.204791 6555.8276 8.4256245e+09 0.16084450 0.054157977 105.77846 34.104660 6558.0356 7.8937073e+09 0.15864504 0.053208970 105.83951 33.996884 6560.2436 7.3444714e+09 0.15583213 0.052054681 105.90449 33.879919 6562.4516 6.8128915e+09 0.15293934 0.050450206 105.96842 33.764848 6564.6596 6.3500876e+09 0.15019523 0.048472678 106.02618 33.660881 6566.8676 5.9764428e+09 0.14783167 0.046692105 106.08394 33.556913 6569.0756 5.6524575e+09 0.14547209 0.044857342 106.14566 33.445814 6571.2835 5.3181853e+09 0.14377067 0.044425832 106.21064 33.328850 6573.4915 4.9733820e+09 0.14156833 0.043263031 106.27562 33.211886 6575.6995 4.6257886e+09 0.13923444 0.041672856 106.34060 33.094921 6577.9075 4.2972381e+09 0.13678302 0.038794870 106.40558 32.977955 6580.1155 4.0215184e+09 0.13409828 0.036413999 106.46025 32.876692 6582.3235 3.7859951e+09 0.13148298 0.035205759 106.51415 32.776575 6584.5315 3.5862853e+09 0.12885210 0.034225983 106.57032 32.670807 6586.7395 3.3799548e+09 0.12633788 0.033161737 106.63098 32.553824 6588.9475 3.1673653e+09 0.12391035 0.033063515 106.69146 32.437193 6591.1555 2.9856762e+09 0.12081734 0.029026473 106.74537 32.333225 6593.3635 2.8397710e+09 0.11783483 0.026764306 106.79927 32.229258 6595.5715 2.7138822e+09 0.11421196 0.025682833 106.85794 32.121565 6597.7795 2.5745562e+09 0.11123382 0.025476762 106.92293 32.008932 6599.9874 2.4258549e+09 0.10989517 0.024989120 106.98609 31.897354 6602.1954 2.2906368e+09 0.10913435 0.027349856 107.03615 31.793386 6604.4034 2.1819566e+09 0.10795750 0.026310818 107.08621 31.689419 6606.6114 2.0919856e+09 0.10735203 0.026405263 107.14182 31.578633 6608.8194 1.9943413e+09 0.10465080 0.023710706 107.20247 31.461668 6611.0274 1.8862380e+09 0.10186612 0.024940981 107.26312 31.345640 6613.2354 1.7745608e+09 0.10115941 0.023659957 107.32377 31.233007 6615.4434 1.6658504e+09 0.10008758 0.023265173 107.38441 31.120374 6617.6514 1.5792517e+09 0.099304223 0.023655212 107.43895 31.015596 6619.8594 1.5114928e+09 0.098731596 0.024733266 107.49287 30.911615 6622.0674 1.4485163e+09 0.097549212 0.024740063 107.54753 30.804941 6624.2754 1.3881298e+09 0.095731142 0.025009705 107.60385 30.692307 6626.4833 1.3150917e+09 0.094316217 0.025975076 107.66018 30.579662 6628.6913 1.2445420e+09 0.092954028 0.025983785 107.72083 30.462696 6630.8993 1.1806629e+09 0.091291532 0.025930518 107.78148 30.345731 6633.1073 1.1189483e+09 0.089956345 0.026170990 107.83477 30.240468 6635.3153 1.0696360e+09 0.088333707 0.026447074 107.88483 30.140351 6637.5233 1.0241067e+09 0.086858176 0.025905113 107.93549 30.038591 6639.7313 9.7947402e+08 0.086265254 0.025366693 107.99181 29.921626 6641.9393 9.3510598e+08 0.086333871 0.025151490 108.04812 29.804661 6644.1473 8.8907876e+08 0.085115410 0.025359524 108.10444 29.691115 6646.3553 8.4251301e+08 0.083942073 0.026104048 108.16076 29.578482 6648.5633 8.0316317e+08 0.082727656 0.027341335 108.21407 29.470009 6650.7713 7.6857879e+08 0.082231537 0.026431799 108.26414 29.366027 6652.9792 7.3594544e+08 0.082022679 0.027519952 108.31420 29.262046 6655.1872 7.0546508e+08 0.080919124 0.027687584 108.36979 29.150416 6657.3952 6.7242972e+08 0.079327916 0.029359568 108.42611 29.037783 6659.6032 6.3959332e+08 0.078074471 0.031708765 108.48242 28.925150 6661.8112 6.1226598e+08 0.076792914 0.032948119 108.53874 28.812517 6664.0192 5.8567119e+08 0.075549066 0.032135809 108.59236 28.702201 6666.2272 5.5926562e+08 0.075782823 0.026952868 108.63856 28.598233 6668.4352 5.3746571e+08 0.074916195 0.027855888 108.68477 28.494265 6670.6432 5.1260475e+08 0.074770174 0.027030656 108.73775 28.384488 6672.8512 4.9343775e+08 0.074474909 0.027372956 108.79407 28.271856 6675.0592 4.7352525e+08 0.072986380 0.029911683 108.84882 28.159224 6677.2672 4.5259768e+08 0.070994751 0.031978424 108.90080 28.046591 6679.4752 4.3604656e+08 0.070723364 0.029875128 108.95302 27.933725 6681.6831 4.1761772e+08 0.071647319 0.030181454 109.00934 27.816760 6683.8911 3.9896997e+08 0.071947699 0.032494548 109.06566 27.699795 6686.0991 3.7858684e+08 0.071360935 0.033818757 109.11875 27.586045 6688.3071 3.5857277e+08 0.068751935 0.033856084 109.17074 27.473395 6690.5151 3.4033176e+08 0.067137868 0.033056832 109.22020 27.366225 6692.7231 3.2729684e+08 0.066163260 0.031925634 109.26641 27.266108 6694.9311 3.1224868e+08 0.065534911 0.029956050 109.31262 27.165992 6697.1391 3.0206724e+08 0.064986328 0.030108867 109.36368 27.055358 6699.3471 2.9311330e+08 0.063675137 0.031270179 109.41567 26.942725 6701.5551 2.8361521e+08 0.062009977 0.032223890 109.46765 26.827788 6703.7631 2.7367638e+08 0.062245488 0.035584656 109.51963 26.710824 6705.9711 2.5849412e+08 0.062478482 0.038394941 109.57162 26.594827 6708.1790 2.4590630e+08 0.062272204 0.040238551 109.62360 26.482194 6710.3870 2.3453930e+08 0.061064513 0.040572252 109.67559 26.369560 6712.5950 2.2714281e+08 0.059064034 0.042934727 109.72757 26.256927 6714.8030 2.1728249e+08 0.057146042 0.047363779 109.77956 26.144294 6717.0110 2.0837997e+08 0.055207024 0.049873587 109.83154 26.031661 6719.2190 2.0177144e+08 0.053121615 0.051161769 109.88353 25.919028 6721.4270 1.9308368e+08 0.053601170 0.050432555 109.93551 25.806390 6723.6350 1.8404857e+08 0.052098904 0.049723087 109.98750 25.693740 6725.8430 1.7049161e+08 0.048228942 0.041049451 110.03950 25.581090 6728.0510 1.6103245e+08 0.047549136 0.039700342 110.08719 25.468457 6730.2590 1.5716736e+08 0.046149742 0.040733972 110.13485 25.355824 6732.4670 1.5763591e+08 0.044595817 0.043826174 110.18545 25.243191 6734.6749 1.5748708e+08 0.044228024 0.049312990 110.23743 25.130557 6736.8829 1.5777737e+08 0.045912978 0.053693007 110.28780 25.017923 6739.0909 1.5444880e+08 0.046625109 0.062937833 110.33545 24.905290 6741.2989 1.4734964e+08 0.045213845 0.066611234 110.38339 24.792658 6743.5069 1.3888048e+08 0.041034848 0.074467068 110.43537 24.680025 6745.7149 1.2898282e+08 0.039022969 0.078867427 110.48736 24.567393 6747.9229 1.2335514e+08 0.034898704 0.067043443 110.53606 24.454760 6750.1309 1.1810368e+08 0.032319121 0.072227631 110.58372 24.342127 6752.3389 1.1438685e+08 0.029626964 0.073742327 110.63137 24.229494 6754.5469 1.1012223e+08 0.028290986 0.075334030 110.67902 24.116861 6756.7549 1.0633781e+08 0.025614791 0.076109288 110.72763 24.001975 6758.9629 1.0389307e+08 0.026370616 0.075741411 110.78209 23.873248 6761.1708 99889041. 0.027334996 0.077982340 110.83573 23.746456 6763.3788 96781722. 0.032442237 0.077591532 110.88338 23.633823 6765.5868 93028353. 0.034670718 0.079638321 110.93104 23.521190 6767.7948 88180499. 0.032623583 0.081085769 110.97869 23.408557 6770.0028 84427045. 0.027923044 0.086886531 111.02634 23.295924 6772.2108 80651724. 0.023971674 0.092241882 111.07400 23.185464 6774.4188 78103155. 0.020022575 0.097597233 111.12166 23.077147 6776.6268 79130746. 0.016081800 0.10295258 111.17065 22.964841 6778.8348 73893808. 0.012127977 0.10830794 111.22510 22.836115 6781.0428 69242782. 0.0081673228 0.11366329 111.27837 22.710215 6783.2508 66736370. 0.0042094304 0.11901864 111.32602 22.597582 6785.4588 63825292. 0.00023760366 0.12437399 111.37367 22.484948 6787.6668 65486452. -0.0036964247 0.12972934 111.42133 22.372315 6789.8747 56219910. -0.0078055827 0.13508469 111.46898 22.259682 6792.0827 52389254. -0.011914534 0.14044004 111.52044 22.140822 6794.2907 52699696. -0.016000867 0.14579539 111.57490 22.017046 6796.4987 53696955. -0.020181236 0.15115074 111.62335 21.899279 6798.7067 58280262. -0.024427676 0.15650609 111.66667 21.786646 6800.9147 53353825. -0.030081638 0.16186145 111.71256 21.670301 6803.1227 49465264. -0.043924865 0.16721680 111.76702 21.541574 6805.3307 47798411. -0.039944237 0.17257215 111.81914 21.417155 6807.5387 46326047. -0.025904867 0.17792750 111.86246 21.308855