# # 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 = 40.044641 km # Date (UTC) = 2017-01-05T10:21:46.952 # Date (julian) = 2457758.93179342 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6506.7661 7.5244728e+10 0.083798772 0.034323510 -35.810573 49.149426 6508.3525 6.8622869e+10 0.091676431 0.034801898 -35.879741 49.080258 6509.9390 6.2710519e+10 0.099680379 0.035280287 -35.948908 49.011091 6511.5254 5.7560533e+10 0.10785832 0.035758676 -36.018075 48.941924 6513.1119 5.3140726e+10 0.11621615 0.036237064 -36.094399 48.865600 6514.6983 4.8772410e+10 0.12463350 0.036715453 -36.172214 48.787786 6516.2848 4.4688150e+10 0.13313567 0.037193842 -36.250028 48.709971 6517.8712 4.0640446e+10 0.14166073 0.037672230 -36.327842 48.632157 6519.4577 3.7092170e+10 0.15029729 0.038150619 -36.405657 48.554342 6521.0441 3.3956427e+10 0.15901865 0.038629007 -36.483472 48.476527 6522.6306 3.1298510e+10 0.16610362 0.039082372 -36.556697 48.402190 6524.2170 2.9045516e+10 0.17048744 0.039504054 -36.623098 48.333023 6525.8035 2.7151400e+10 0.17383325 0.039690518 -36.689499 48.263855 6527.3899 2.5543296e+10 0.17822720 0.040999544 -36.755900 48.194688 6528.9763 2.3953677e+10 0.18006125 0.042217022 -36.828839 48.118710 6530.5628 2.2227658e+10 0.18237917 0.044616600 -36.903540 48.040895 6532.1492 2.0534004e+10 0.18448841 0.046808866 -36.978241 47.963081 6533.7357 1.8977135e+10 0.18425366 0.047832232 -37.048176 47.890232 6535.3221 1.7617201e+10 0.18378819 0.048084556 -37.114586 47.821056 6536.9086 1.6619124e+10 0.18285833 0.048603430 -37.180996 47.751879 6538.4950 1.5697743e+10 0.18139482 0.049397732 -37.247405 47.682703 6540.0815 1.4748639e+10 0.18066811 0.050892591 -37.321784 47.605226 6541.6679 1.3725655e+10 0.17805285 0.051109929 -37.396487 47.527411 6543.2544 1.2622806e+10 0.17617885 0.051448652 -37.471189 47.449597 6544.8408 1.1715461e+10 0.17472825 0.052326429 -37.537610 47.378252 6546.4273 1.0926354e+10 0.17227219 0.052816089 -37.601244 47.309085 6548.0137 1.0280263e+10 0.17073013 0.053671738 -37.664878 47.239917 6549.6001 9.7306646e+09 0.16885987 0.054577879 -37.729575 47.169594 6551.1866 9.1617576e+09 0.16664280 0.055301249 -37.801164 47.091779 6552.7730 8.5908739e+09 0.16515090 0.055392193 -37.872754 47.013965 6554.3595 7.9964715e+09 0.16284795 0.054839924 -37.944343 46.936150 6555.9459 7.4633902e+09 0.16036742 0.054058555 -38.008605 46.866299 6557.5324 7.0156731e+09 0.15850937 0.053532411 -38.072239 46.797132 6559.1188 6.6732682e+09 0.15542854 0.052373770 -38.135873 46.727965 6560.7053 6.3494949e+09 0.15251195 0.051638417 -38.200991 46.656147 6562.2917 6.0205604e+09 0.14981611 0.050602324 -38.269468 46.578332 6563.8782 5.6544187e+09 0.14650819 0.048912534 -38.337946 46.500518 6565.4646 5.2674034e+09 0.14415905 0.047790827 -38.405710 46.423513 6567.0511 4.9549644e+09 0.14172491 0.046574019 -38.466584 46.354337 6568.6375 4.6906944e+09 0.13891906 0.045185646 -38.527459 46.285161 6570.2239 4.4888746e+09 0.13676142 0.044824742 -38.588333 46.215984 6571.8104 4.2891732e+09 0.13436833 0.044281941 -38.652856 46.142663 6573.3968 4.0625667e+09 0.13205538 0.043339027 -38.721333 46.064849 6574.9833 3.8412894e+09 0.13034738 0.042382735 -38.789810 45.987034 6576.5697 3.6206152e+09 0.12820231 0.040715620 -38.856255 45.910790 6578.1562 3.4159118e+09 0.12617596 0.038402991 -38.917122 45.838856 6579.7426 3.2412959e+09 0.12411579 0.036662244 -38.977990 45.766921 6581.3291 3.0874045e+09 0.12192446 0.035496962 -39.038858 45.694986 6582.9155 2.9600233e+09 0.12024157 0.035044657 -39.102660 45.619214 6584.5020 2.8218347e+09 0.11826961 0.034242073 -39.168023 45.541400 6586.0884 2.6697739e+09 0.11629131 0.033170153 -39.233387 45.463586 6587.6749 2.5134185e+09 0.11499025 0.033307891 -39.296773 45.389575 6589.2613 2.3571393e+09 0.11316632 0.032527580 -39.357641 45.320407 6590.8477 2.2346043e+09 0.11094447 0.029485124 -39.418509 45.251240 6592.4342 2.1294865e+09 0.10897302 0.027651792 -39.479376 45.182073 6594.0206 2.0308269e+09 0.10669420 0.026161194 -39.543963 45.105758 6595.6071 1.9297220e+09 0.10433157 0.025686528 -39.609337 45.027932 6597.1935 1.8183796e+09 0.10232771 0.025661656 -39.674710 44.950106 6598.7800 1.7132566e+09 0.10051450 0.025034777 -39.733928 44.877589 6600.3664 1.6222367e+09 0.10007813 0.025743175 -39.789262 44.808422 6601.9529 1.5417263e+09 0.099191086 0.027494438 -39.844596 44.739254 6603.5393 1.4735505e+09 0.097557196 0.026344000 -39.900009 44.670019 6605.1258 1.4086866e+09 0.096758155 0.026770548 -39.965281 44.592284 6606.7122 1.3363108e+09 0.095601256 0.026224148 -40.030645 44.514469 6608.2987 1.2583090e+09 0.093608465 0.023724475 -40.096009 44.436655 6609.8851 1.1875976e+09 0.091637653 0.023968848 -40.153490 44.363462 6611.4715 1.1291197e+09 0.089737297 0.024657748 -40.208824 44.291529 6613.0580 1.0896310e+09 0.089153749 0.023594868 -40.264158 44.219595 6614.6444 1.0473023e+09 0.088302462 0.023496499 -40.320679 44.146653 6616.2309 1.0015585e+09 0.087157349 0.023318536 -40.382929 44.068839 6617.8173 9.5664600e+08 0.086838967 0.023710233 -40.445180 43.991024 6619.4038 9.0197522e+08 0.086413923 0.024623339 -40.507430 43.913210 6620.9902 8.5495957e+08 0.085875435 0.025086296 -40.569682 43.835395 6622.5767 8.0306347e+08 0.085032213 0.024604502 -40.631934 43.757581 6624.1631 7.5663496e+08 0.083766934 0.024949625 -40.694186 43.679766 6625.7496 7.1358205e+08 0.083190853 0.026292056 -40.749219 43.608395 6627.3360 6.8062236e+08 0.081666806 0.025446605 -40.801794 43.539219 6628.9225 6.6247067e+08 0.080778445 0.026077620 -40.854368 43.470043 6630.5089 6.4196692e+08 0.079592923 0.025929556 -40.908221 43.399726 6632.0953 6.1861910e+08 0.078379328 0.026043778 -40.970471 43.321912 6633.6818 5.8530955e+08 0.077406519 0.026271287 -41.032722 43.244097 6635.2682 5.5189317e+08 0.076524649 0.026440014 -41.094972 43.166283 6636.8547 5.3322964e+08 0.075365804 0.026217844 -41.148322 43.096417 6638.4411 5.1464383e+08 0.074593857 0.025652423 -41.200890 43.027250 6640.0276 5.0074086e+08 0.074703102 0.025267278 -41.253458 42.958082 6641.6140 4.8715112e+08 0.074818490 0.025150385 -41.308029 42.885330 6643.2005 4.6665405e+08 0.074515401 0.025222887 -41.367168 42.804403 6644.7869 4.4987509e+08 0.074004518 0.025428655 -41.426306 42.723477 6646.3734 4.2783493e+08 0.073429254 0.026113411 -41.485444 42.642837 6647.9598 4.0716209e+08 0.073058118 0.026943123 -41.544583 42.565023 6649.5463 3.9560875e+08 0.072514633 0.026880704 -41.603721 42.487208 6651.1327 3.8030687e+08 0.072406605 0.026585860 -41.662860 42.409394 6652.7191 3.6507302e+08 0.072390684 0.027448387 -41.713793 42.339175 6654.3056 3.4753632e+08 0.071911791 0.027906041 -41.763600 42.269999 6655.8920 3.2954579e+08 0.070822278 0.027978808 -41.813408 42.200822 6657.4785 3.2266772e+08 0.069822265 0.029456137 -41.864865 42.129354 6659.0649 3.1534586e+08 0.068711507 0.031821054 -41.920891 42.051539 6660.6514 3.1168621e+08 0.067904330 0.032218067 -41.976918 41.973725 6662.2378 2.9942821e+08 0.067062191 0.032910839 -42.033108 41.895911 6663.8243 2.8383337e+08 0.066218602 0.032254788 -42.092248 41.818096 6665.4107 2.7095099e+08 0.066443478 0.027874161 -42.151388 41.740281 6666.9972 2.5679926e+08 0.066274794 0.027102904 -42.210528 41.662466 6668.5836 2.4606071e+08 0.065523788 0.027987225 -42.261824 41.591914 6670.1701 2.3719541e+08 0.065516554 0.027249850 -42.311625 41.522747 6671.7565 2.2883717e+08 0.065381225 0.026876129 -42.361425 41.453579 6673.3429 2.2177535e+08 0.065017671 0.027972117 -42.411927 41.381762 6674.9294 2.1340841e+08 0.063900960 0.029738793 -42.464841 41.300834 6676.5158 2.0233914e+08 0.062246527 0.032046178 -42.517754 41.219906 6678.1023 1.9524542e+08 0.061801372 0.030868202 -42.570714 41.139026 6679.6887 1.9064828e+08 0.061900327 0.029698636 -42.626733 41.061204 6681.2752 1.7925433e+08 0.062732714 0.029868469 -42.682759 40.983389 6682.8616 1.7034011e+08 0.063327279 0.031082855 -42.738786 40.905575 6684.4481 1.6296662e+08 0.063342075 0.032676829 -42.792322 40.827760 6686.0345 1.5425986e+08 0.062942347 0.033781165 -42.845236 40.749945 6687.6210 1.4898173e+08 0.061195693 0.033996585 -42.898149 40.672131 6689.2074 1.4136148e+08 0.059216514 0.033829326 -42.949239 40.599387 6690.7939 1.3382747e+08 0.058644400 0.033024887 -42.999046 40.530211 6692.3803 1.2982764e+08 0.057979107 0.032323711 -43.048853 40.461034 6693.9667 1.2208224e+08 0.057222243 0.031272436 -43.098660 40.391858 6695.5532 1.1767502e+08 0.057231680 0.029757859 -43.151491 40.314276 6697.1396 1.1523831e+08 0.056766317 0.030108936 -43.204406 40.236461 6698.7261 1.0975996e+08 0.055845056 0.031214449 -43.257320 40.158647 6700.3125 1.0538138e+08 0.054641679 0.030899530 -43.310233 40.080833 6701.8990 98513435. 0.053368818 0.032728497 -43.363147 40.003018 6703.4854 97632427. 0.053685588 0.034889913 -43.416060 39.925204 6705.0719 91099668. 0.053808299 0.036796371 -43.467269 39.847390 6706.6583 86645417. 0.053507844 0.039592147 -43.517070 39.769575 6708.2448 83213075. 0.053241371 0.040310112 -43.566871 39.691761 6709.8312 83613946. 0.052446720 0.040603856 -43.617715 39.612904 6711.4177 87623017. 0.051098074 0.041167406 -43.670630 39.531977 6713.0041 84892531. 0.049756273 0.043701445 -43.723544 39.451051 6714.5905 76241286. 0.048085315 0.047347806 -43.776079 39.370504 6716.1770 72476750. 0.046767753 0.048662049 -43.825880 39.292689 6717.7634 71190600. 0.045317007 0.049827046 -43.875681 39.214875 6719.3499 75231796. 0.044089045 0.051037425 -43.925482 39.137060 6720.9363 76484147. 0.044616571 0.050311276 -43.978113 39.059246 6722.5228 68718593. 0.043784082 0.049958919 -44.031026 38.981432 6724.1092 61454435. 0.041493491 0.049014601 -44.083940 38.903617 6725.6957 56057335. 0.037710071 0.041141470 -44.134685 38.825803 6727.2821 55867046. 0.036190929 0.040584532 -44.184486 38.747989 6728.8686 57382202. 0.035071483 0.040859132 -44.234288 38.670174 6730.4550 56203356. 0.030849103 0.041002770 -44.284089 38.592360 6732.0415 51902858. 0.010469886 0.043747840 -44.333890 38.514545 6733.6279 49628535. 0.024897535 0.047333343 -44.383692 38.436730 6735.2143 47907293. 0.059865914 0.049520973 -44.433495 38.358912