# # 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 = 47.982322 km # Date (UTC) = 2015-11-24T10:03:34.675 # Date (julian) = 2457350.91915133 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6499.6324 5.5742200e+10 0.038510730 0.032172369 105.08854 27.523409 6501.6019 5.2332588e+10 0.046474198 0.032766266 105.13491 27.413966 6503.5714 4.9046825e+10 0.054823496 0.033360164 105.18129 27.301890 6505.5409 4.6100873e+10 0.063634429 0.033954062 105.22766 27.189813 6507.5104 4.2978065e+10 0.072733978 0.034547959 105.27565 27.066013 6509.4799 3.9587340e+10 0.082038969 0.035141857 105.32422 26.937964 6511.4494 3.6263540e+10 0.091641033 0.035735754 105.37176 26.819224 6513.4189 3.3357098e+10 0.10171169 0.036329652 105.41814 26.711012 6515.3884 3.0994344e+10 0.11237324 0.036923550 105.46452 26.602800 6517.3579 2.9017181e+10 0.12358927 0.037517447 105.50748 26.491195 6519.3274 2.7143543e+10 0.13517542 0.038111345 105.54998 26.379135 6521.2969 2.5349589e+10 0.14707826 0.038705242 105.59362 26.268211 6523.2664 2.3621578e+10 0.15564851 0.039245147 105.63999 26.160016 6525.2359 2.2015815e+10 0.16268044 0.039755289 105.68636 26.051821 6527.2054 2.0599201e+10 0.16855397 0.040865616 105.73000 25.940898 6529.1749 1.9287804e+10 0.17271831 0.042514435 105.77251 25.828838 6531.1444 1.8095497e+10 0.17637833 0.045438902 105.81501 25.717233 6533.1139 1.6969035e+10 0.18003161 0.047568005 105.85752 25.609039 6535.0834 1.5924949e+10 0.18110312 0.048188104 105.90002 25.500844 6537.0529 1.4920271e+10 0.18056058 0.048710182 105.94458 25.390600 6539.0224 1.4073072e+10 0.17898746 0.049670783 105.99095 25.278540 6540.9919 1.3269721e+10 0.17719640 0.051322717 106.03732 25.166480 6542.9614 1.2405511e+10 0.17536372 0.051367252 106.08577 25.043495 6544.9309 1.1490500e+10 0.17376035 0.052399539 106.13435 24.919841 6546.9004 1.0554435e+10 0.17164594 0.053205438 106.17881 24.806665 6548.8699 9.7907270e+09 0.16939976 0.053927438 106.22132 24.698470 6550.8394 9.1935289e+09 0.16776609 0.055195547 106.26348 24.589927 6552.8089 8.6906490e+09 0.16641100 0.055383158 106.30212 24.477867 6554.7784 8.2183931e+09 0.16444586 0.054848715 106.34076 24.365807 6556.7479 7.7708421e+09 0.16211009 0.053903165 106.38134 24.255687 6558.7174 7.3187943e+09 0.15954793 0.052627961 106.42384 24.147492 6560.6869 6.8807977e+09 0.15692339 0.051654948 106.46635 24.039298 6562.6564 6.4545622e+09 0.15450350 0.050255280 106.50886 23.931087 6564.6259 6.0508476e+09 0.15188968 0.048487923 106.55137 23.822875 6566.5954 5.7044376e+09 0.14944445 0.046846047 106.59388 23.713406 6568.5649 5.3950575e+09 0.14722544 0.045252350 106.63639 23.601346 6570.5344 5.1243967e+09 0.14528108 0.044696127 106.67889 23.489287 6572.5039 4.8668421e+09 0.14298496 0.043941563 106.71854 23.380082 6574.4734 4.6068377e+09 0.14011044 0.042627614 106.75718 23.271887 6576.4429 4.3501408e+09 0.13714635 0.040861562 106.79641 23.163692 6578.4124 4.0987287e+09 0.13402925 0.037998326 106.83891 23.055496 6580.3819 3.8773009e+09 0.13130066 0.036167786 106.88142 22.947300 6582.3514 3.6762556e+09 0.12908252 0.035198158 106.92175 22.839105 6584.3209 3.4890581e+09 0.12709271 0.034340683 106.96039 22.730910 6586.2904 3.3172206e+09 0.12528431 0.033167542 106.99903 22.622715 6588.2599 3.1499285e+09 0.12393248 0.033293123 107.04144 22.514519 6590.2294 2.9966924e+09 0.12199226 0.030635273 107.08395 22.406323 6592.1989 2.8383856e+09 0.11984330 0.027880295 107.12495 22.298127 6594.1684 2.6895395e+09 0.11769976 0.026080058 107.16360 22.189932 6596.1379 2.5483731e+09 0.11520985 0.025726647 107.20224 22.081736 6598.1074 2.4239378e+09 0.11352246 0.025355869 107.24088 21.973541 6600.0769 2.3168638e+09 0.11279472 0.025148053 107.27952 21.865346 6602.0464 2.2019677e+09 0.11219914 0.027477001 107.31816 21.757147 6604.0159 2.1029065e+09 0.11060170 0.026080743 107.35681 21.648935 6605.9854 2.0106393e+09 0.11018141 0.027491751 107.39546 21.540723 6607.9549 1.9214612e+09 0.10799353 0.023821342 107.43651 21.432522 6609.9244 1.8406177e+09 0.10504232 0.023980535 107.47901 21.324326 6611.8939 1.7564830e+09 0.10254353 0.024388384 107.52138 21.216130 6613.8634 1.6758762e+09 0.10141527 0.023890390 107.56002 21.107935 6615.8329 1.6063497e+09 0.099725476 0.023277159 107.59867 20.999740 6617.8024 1.5393279e+09 0.098751779 0.023705297 107.63731 20.891545 6619.7719 1.4794977e+09 0.097702781 0.024712172 107.67595 20.783349 6621.7414 1.4215487e+09 0.096321984 0.024843692 107.71459 20.675153 6623.7109 1.3557308e+09 0.094561167 0.024755220 107.75798 20.553664 6625.6804 1.2823650e+09 0.093702359 0.026209580 107.80214 20.430008 6627.6499 1.2110513e+09 0.092316114 0.025567874 107.84071 20.315561 6629.6194 1.1438376e+09 0.091542760 0.025997107 107.87549 20.207366 6631.5889 1.0891824e+09 0.090202139 0.025990591 107.91031 20.099171 6633.5584 1.0418758e+09 0.089159536 0.026249752 107.94894 19.990976 6635.5279 9.9362733e+08 0.088056170 0.026478961 107.98758 19.882780 6637.4974 9.4944187e+08 0.087104903 0.025917777 108.02622 19.776206 6639.4669 9.0945331e+08 0.086650470 0.025461177 108.06486 19.671874 6641.4364 8.6675166e+08 0.087225587 0.025149782 108.10350 19.567542 6643.4059 8.3118872e+08 0.086690858 0.025253912 108.14214 19.459997 6645.3754 7.9684285e+08 0.085871389 0.025627568 108.18078 19.351802 6647.3449 7.6157566e+08 0.084922894 0.026619397 108.21848 19.243607 6649.3144 7.3395823e+08 0.083919467 0.027200236 108.25326 19.135411 6651.2839 7.0289749e+08 0.083583527 0.026701771 108.28804 19.027216 6653.2534 6.7712011e+08 0.083165259 0.027655064 108.32536 18.919009 6655.2229 6.5347252e+08 0.081876389 0.027702339 108.36400 18.810798 6657.1924 6.2645565e+08 0.080164858 0.029124347 108.40238 18.702852 6659.1620 6.0195050e+08 0.078692105 0.031800816 108.43716 18.598521 6661.1315 5.7446985e+08 0.077472365 0.032601900 108.47194 18.494190 6663.1010 5.5200564e+08 0.076331826 0.032455237 108.50857 18.388002 6665.0705 5.3319700e+08 0.075716181 0.028431694 108.54721 18.279806 6667.0400 5.1663811e+08 0.075258515 0.027118132 108.58585 18.171609 6669.0095 5.0297250e+08 0.074055139 0.028345995 108.62104 18.066863 6670.9790 4.8523130e+08 0.074324033 0.026875100 108.65582 17.962532 6672.9485 4.6634131e+08 0.074144248 0.027429339 108.69346 17.852311 6674.9180 4.4173642e+08 0.072969450 0.029729144 108.73762 17.728657 6676.8875 4.1427676e+08 0.071135438 0.032285682 108.78140 17.605784 6678.8570 3.8968096e+08 0.070715198 0.030363447 108.81618 17.501453 6680.8265 3.7360201e+08 0.071697154 0.029619882 108.85096 17.397122 6682.7960 3.6235195e+08 0.072289693 0.031032682 108.88574 17.291042 6684.7655 3.5155099e+08 0.072186854 0.032692935 108.92051 17.182846 6686.7350 3.3711643e+08 0.070902260 0.034188692 108.95529 17.074650 6688.7045 3.2150014e+08 0.068396509 0.033947802 108.99007 16.969796 6690.6740 3.1135905e+08 0.067234932 0.033038628 109.02485 16.865465 6692.6435 3.0040476e+08 0.066337083 0.032018124 109.06069 16.760064 6694.6130 2.9235886e+08 0.065515111 0.030401938 109.09934 16.651869 6696.5825 2.7897681e+08 0.065111191 0.029917784 109.13798 16.543673 6698.5520 2.6867344e+08 0.063982954 0.030975439 109.17738 16.427871 6700.5215 2.5850875e+08 0.062262114 0.031054497 109.21712 16.308633 6702.4910 2.4650579e+08 0.061183583 0.033268761 109.25476 16.195721 6704.4605 2.3592966e+08 0.061243983 0.036403662 109.28954 16.091390 6706.4300 2.2172131e+08 0.060914741 0.039194710 109.32432 15.987059 6708.3995 2.1506458e+08 0.060281118 0.040478572 109.35909 15.879495 6710.3690 2.0655838e+08 0.058826690 0.040568714 109.39387 15.771299 6712.3385 2.0052239e+08 0.056718172 0.042458361 109.42865 15.664059 6714.3080 1.9287572e+08 0.054629458 0.047326561 109.46343 15.559713 6716.2775 1.8514244e+08 0.052843810 0.048810030 109.49821 15.455366 6718.2470 1.8156417e+08 0.050698967 0.050197033 109.53628 15.341175 6720.2165 1.7494533e+08 0.049799467 0.050394686 109.57602 15.221936 6722.1860 1.7045468e+08 0.049482600 0.050375311 109.61380 15.108612 6724.1555 1.5643342e+08 0.046968776 0.048628478 109.64857 15.004281 6726.1250 1.4588674e+08 0.043298521 0.040952494 109.68335 14.899950 6728.0945 1.4102887e+08 0.042469722 0.039761980 109.71500 14.792493 6730.0640 1.3889624e+08 0.041010301 0.040466599 109.74591 14.684298 6732.0335 1.3995121e+08 0.039355222 0.043746369 109.77878 14.573664 6734.0030 1.3348101e+08 0.038141824 0.049353421 109.81852 14.454424 6735.9725 1.2553762e+08 0.039441323 0.050325771 109.85827 14.335185 6737.9420 1.1965072e+08 0.040335436 0.057136206 109.89326 14.230206 6739.9115 1.1328872e+08 0.039904690 0.063942007 109.92804 14.125875 6741.8810 1.0665500e+08 0.037630584 0.068271245 109.96465 14.016049 6743.8505 1.0249355e+08 0.033040718 0.076784632 110.00440 13.896810 6745.8200 98058416. 0.031513244 0.078911592 110.04322 13.779126 6747.7895 99369880. 0.027377143 0.067089380 110.07414 13.674795 6749.7590 98717725. 0.025356296 0.072070128 110.10505 13.570464 6751.7285 96814772. 0.022560523 0.074019669 110.13796 13.466132 6753.6980 94260212. 0.020965460 0.075236026 110.17273 13.361801 6755.6675 85948330. 0.018234967 0.074312705 110.20751 13.257470 6757.6370 80449401. 0.016436623 0.074807041 110.24690 13.139298 6759.6065 73676957. 0.016396384 0.075966304 110.28665 13.020059 6761.5760 71773192. 0.018219254 0.078015811 110.32053 12.910719 6763.5455 68270623. 0.021315272 0.078098988 110.35144 12.806388 6765.5150 65742576. 0.022402520 0.079625202 110.38302 12.700922 6767.4845 62556816. 0.019671744 0.081433290 110.42277 12.581684 6769.4540 58520938. 0.013109411 0.085555326 110.46252 12.462445 6771.4235 56836391. 0.0069621890 0.090332231 110.49868 12.343207 6773.3930 53251811. -0.0032977297 0.095109135 110.53401 12.223969 6775.3625 50879094. -0.038291960 0.099886039 110.56904 12.115006 6777.3320 49937292. -0.018586853 0.10466294 110.60381 12.014539 6781.2710 49094898. 0.034186792 0.11421675 110.67390 11.795594