# # 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 = 65.991494 km # Date (UTC) = 2014-01-31T18:53:57.245 # Date (julian) = 2456689.28746811 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6494.4495 5.4273147e+10 0.035467723 0.030609476 -37.832987 57.330666 6496.7685 5.0403759e+10 0.042210166 0.031308771 -37.550903 57.084981 6499.0876 4.6905019e+10 0.048688850 0.032008066 -37.271411 56.839271 6501.4066 4.4070232e+10 0.055047632 0.032707362 -37.010133 56.601508 6503.7256 4.1700886e+10 0.061576948 0.033406657 -36.798999 56.397656 6506.0446 3.9291303e+10 0.068461979 0.034105952 -36.544820 56.159660 6508.3637 3.6905703e+10 0.075851006 0.034805247 -36.280944 55.907464 6510.6827 3.3957314e+10 0.083664843 0.035504542 -36.022662 55.658281 6513.0017 3.0910390e+10 0.092061282 0.036203838 -35.767870 55.407869 6515.3207 2.8411440e+10 0.10153581 0.036903133 -35.537524 55.177525 6517.6397 2.6196882e+10 0.11215822 0.037602428 -35.338688 54.978272 6519.9588 2.4072020e+10 0.12383693 0.038301723 -35.092961 54.723439 6522.2778 2.2209895e+10 0.13603334 0.038989994 -34.855918 54.468681 6524.5968 2.0356269e+10 0.14384297 0.039638981 -34.659450 54.257100 6526.9158 1.8652158e+10 0.15131519 0.040628235 -34.447723 54.033406 6529.2349 1.7290378e+10 0.15797323 0.042609896 -34.231647 53.803446 6531.5539 1.5776085e+10 0.16474053 0.046034862 -34.049451 53.599384 6533.8729 1.4393165e+10 0.17012386 0.047890546 -33.822017 53.344660 6536.1919 1.3235885e+10 0.17258697 0.047962225 -33.642216 53.135919 6538.5110 1.2261881e+10 0.17470335 0.049405487 -33.467505 52.932089 6540.8300 1.1443484e+10 0.17392782 0.051246204 -33.285965 52.720291 6543.1490 1.0563503e+10 0.17170793 0.051420998 -33.070450 52.468371 6545.4680 9.7231050e+09 0.16952747 0.052459760 -32.903037 52.264568 6547.7870 8.9985207e+09 0.16769892 0.053586662 -32.735598 52.060730 6550.1061 8.3648364e+09 0.16617725 0.055011917 -32.555182 51.841091 6552.4251 7.6962815e+09 0.16440300 0.055479772 -32.356230 51.597021 6554.7441 7.0449111e+09 0.16254389 0.054847995 -32.196097 51.393217 6557.0631 6.4991545e+09 0.16061298 0.053826534 -32.035935 51.189373 6559.3822 6.0715120e+09 0.15814302 0.052344047 -31.875765 50.985520 6561.7012 5.6783326e+09 0.15572291 0.051027155 -31.716252 50.781015 6564.0202 5.3035665e+09 0.15302250 0.048762442 -31.563399 50.569931 6566.3392 4.9653514e+09 0.15119380 0.046990985 -31.405306 50.364025 6568.6582 4.6661123e+09 0.14958721 0.045166575 -31.250124 50.160174 6570.9773 4.3866105e+09 0.14815211 0.044512690 -31.104515 49.956322 6573.2963 4.1193714e+09 0.14643592 0.043419713 -30.951886 49.752515 6575.6153 3.8839956e+09 0.14415347 0.041757352 -30.803344 49.544349 6577.9343 3.6745287e+09 0.14155647 0.038752751 -30.657735 49.334829 6580.2534 3.4789960e+09 0.13869527 0.036286610 -30.512125 49.130975 6582.5724 3.2987046e+09 0.13601351 0.035138033 -30.366547 48.927164 6584.8914 3.1312973e+09 0.13323627 0.034029927 -30.224408 48.723338 6587.2104 2.9848963e+09 0.13048897 0.033204993 -30.085347 48.518753 6589.5295 2.8510184e+09 0.12798696 0.031995589 -29.939736 48.307618 6591.8485 2.7190255e+09 0.12542385 0.028244503 -29.804714 48.101779 6594.1675 2.5796670e+09 0.12333612 0.026080575 -29.671104 47.897943 6596.4865 2.4327351e+09 0.12101886 0.025725062 -29.532809 47.694137 6598.8055 2.2913467e+09 0.11947417 0.025022570 -29.394480 47.483154 6601.1246 2.1811674e+09 0.11966445 0.027104354 -29.273806 47.297032 6603.4436 2.0973509e+09 0.11862103 0.026400669 -29.164603 47.127160 6605.7626 2.0228044e+09 0.11811107 0.027304815 -29.034476 46.924741 6608.0816 1.9373543e+09 0.11601759 0.023730213 -28.907699 46.716663 6610.4007 1.8301452e+09 0.11305116 0.024385799 -28.782422 46.507102 6612.7197 1.7288854e+09 0.11151492 0.023783033 -28.651373 46.303249 6615.0387 1.6468385e+09 0.11040395 0.023252722 -28.543685 46.127837 6617.3577 1.5723813e+09 0.10909196 0.023557853 -28.436664 45.950195 6619.6768 1.5017964e+09 0.10839652 0.024689203 -28.312927 45.739111 6621.9958 1.4225163e+09 0.10723162 0.024759393 -28.189165 45.533916 6624.3148 1.3480829e+09 0.10531621 0.025030819 -28.074499 45.342379 6626.6338 1.2926024e+09 0.10341920 0.025783359 -27.971364 45.166443 6628.9528 1.2432188e+09 0.10171098 0.026089958 -27.857642 44.968372 6631.2719 1.1900782e+09 0.099636910 0.025958382 -27.738114 44.764539 6633.5909 1.1277216e+09 0.097920511 0.026255416 -27.615588 44.562002 6635.9099 1.0681603e+09 0.095984249 0.026536242 -27.518518 44.386064 6638.2289 1.0148108e+09 0.094555329 0.025661668 -27.416629 44.199041 6640.5480 9.7571009e+08 0.094383180 0.025203609 -27.307709 43.995848 6642.8670 9.3888379e+08 0.094037312 0.025187175 -27.210639 43.819908 6645.1860 9.0068229e+08 0.093070739 0.025538819 -27.106293 43.633512 6647.5050 8.6211397e+08 0.092058898 0.026703678 -26.989929 43.429836 6649.8240 8.2502701e+08 0.091318016 0.026497779 -26.898868 43.259888 6652.1431 7.8572616e+08 0.090938652 0.027289885 -26.801438 43.075447 6654.4621 7.5307737e+08 0.090137660 0.027839370 -26.692231 42.864313 6656.7811 7.2177270e+08 0.088224132 0.028708998 -26.600857 42.693601 6659.1001 6.9162983e+08 0.086598458 0.031813710 -26.503833 42.510078 6661.4192 6.6622940e+08 0.085165950 0.032748438 -26.394652 42.298995 6663.7382 6.3945106e+08 0.083711542 0.032278644 -26.308683 42.127366 6666.0572 6.0932110e+08 0.083629030 0.026919743 -26.216245 41.946990 6668.3762 5.8400126e+08 0.082613469 0.027803711 -26.107039 41.743138 6670.6953 5.5920577e+08 0.082222297 0.027006533 -26.020539 41.565401 6673.0143 5.3397399e+08 0.081782050 0.027480568 -25.935603 41.391206 6675.3333 5.1669246e+08 0.079739665 0.030436746 -25.850668 41.221337 6677.6523 4.9213027e+08 0.077919300 0.031430875 -25.754893 41.029786 6679.9713 4.7386455e+08 0.077840136 0.029465096 -25.657488 40.833369 6682.2904 4.5760427e+08 0.078383833 0.030646394 -25.572554 40.657431 6684.6094 4.4002025e+08 0.078247006 0.032685016 -25.477139 40.464278 6686.9284 4.2585493e+08 0.076448518 0.034301249 -25.380819 40.268689 6689.2474 4.0577375e+08 0.073460373 0.033793293 -25.301951 40.098816 6691.5665 3.8892361e+08 0.072339676 0.032867616 -25.219473 39.925336 6693.8855 3.7455804e+08 0.071256126 0.031300314 -25.134537 39.749401 6696.2045 3.5893982e+08 0.071141084 0.029760753 -25.040431 39.547084 6698.5235 3.4812266e+08 0.070099315 0.030936418 -24.954832 39.362713 6700.8425 3.3660166e+08 0.068234536 0.031292661 -24.875964 39.192844 6703.1616 3.2438163e+08 0.067881575 0.034079541 -24.782510 38.984830 6705.4806 3.1253083e+08 0.068003874 0.037523008 -24.696555 38.796426 6707.7996 2.9868368e+08 0.067710383 0.040072282 -24.617687 38.626556 6710.1186 2.8508836e+08 0.066567496 0.040519717 -24.544306 38.456716 6712.4377 2.7602991e+08 0.064307889 0.042642554 -24.465969 38.278242 6714.7567 2.6653523e+08 0.062142455 0.047360296 -24.371323 38.074387 6717.0757 2.5443792e+08 0.060024216 0.049869585 -24.295908 37.895109 6719.3947 2.4585055e+08 0.057920077 0.050994814 -24.221698 37.720580 6721.7138 2.3467069e+08 0.058197765 0.050518957 -24.142830 37.550710 6724.0328 2.2236818e+08 0.056137245 0.049652943 -24.059002 37.361004 6726.3518 2.1311869e+08 0.052195087 0.040954540 -23.974700 37.164301 6728.6708 2.0022845e+08 0.051633609 0.040578877 -23.901914 36.994463 6730.9898 1.9227202e+08 0.049780287 0.041736103 -23.829119 36.824607 6733.3089 1.8660009e+08 0.048371673 0.045601248 -23.756316 36.654738 6735.6279 1.7944683e+08 0.049131308 0.049959986 -23.670213 36.447182 6737.9469 1.7725811e+08 0.050445055 0.057151987 -23.593982 36.258318 6740.2659 1.7130188e+08 0.049989157 0.064504671 -23.527248 36.088448 6742.5850 1.6293910e+08 0.046920351 0.070036118 -23.455105 35.918578 6744.9040 1.5441562e+08 0.042988184 0.078492620 -23.378768 35.740459 6747.2230 1.4512994e+08 0.038429650 0.067284389 -23.291424 35.536654 6749.5420 1.3749485e+08 0.037247436 0.072129525 -23.221994 35.362345 6751.8611 1.3144654e+08 0.033742488 0.074075729 -23.155258 35.192476 6754.1801 1.2503336e+08 0.032296582 0.075923888 -23.088523 35.022606 6756.4991 1.2026825e+08 0.029524257 0.075451161 -23.014145 34.833277 6758.8181 1.1744423e+08 0.029820792 0.075435346 -22.936720 34.634986 6761.1371 1.1443006e+08 0.030618037 0.077979556 -22.869998 34.459084 6763.4562 1.1095691e+08 0.035857783 0.077827028 -22.795920 34.267797 6765.7752 1.0888618e+08 0.037994402 0.079672707 -22.718196 34.069953 6768.0942 1.0662307e+08 0.035051847 0.081195022 -22.651462 33.900084 6770.4132 1.0216203e+08 0.030168876 0.087881976 -22.584728 33.730214 6772.7323 98721603. 0.025910686 0.093506626 -22.517992 33.560344 6775.0513 91175870. 0.021684198 0.099131276 -22.439506 33.360560 6777.3703 89844117. 0.017406498 0.10475593 -22.369265 33.173942 6779.6893 87119242. 0.013142648 0.11038058 -22.308608 33.004104 6782.0083 86892129. 0.0088697005 0.11600523 -22.242737 32.834239 6784.3274 86229511. 0.0046061048 0.12162988 -22.174729 32.657241 6786.6464 81606840. 0.00033083539 0.12725453 -22.101924 32.453386 6788.9654 79994015. -0.0039343402 0.13287918 -22.039268 32.277950 6791.2844 75627760. -0.0082200878 0.13850383 -21.974955 32.101705 6793.6035 74168120. -0.012456859 0.14412848 -21.894889 31.897902 6795.9225 71066566. -0.016688596 0.14975313 -21.830614 31.721720 6798.2415 69071193. -0.020881763 0.15537778 -21.767936 31.546218 6800.5605 67877634. -0.025051417 0.16100243 -21.695131 31.342365 6802.8796 66014115. -0.029236697 0.16662708 -21.631940 31.170238 6805.1986 65011739. -0.033402563 0.17225173 -21.571271 31.005561 6807.5176 62996968. -0.037600784 0.17787638 -21.510603 30.835690 6809.8366 57117106. -0.041942914 0.18350103 -21.447536 30.649003 6812.1556 53671163. -0.046229526 0.18912568 -21.382617 30.449328 6814.4747 52843749. -0.050410810 0.19475033 -21.321950 30.279458 6816.7937 55605298. -0.054413824 0.20037498 -21.255537 30.093501 6819.1127 58874697. -0.058394828 0.20599963 -21.183459 29.889648 6821.4317 56746381. -0.062631104 0.21162427 -21.117935 29.685795 6823.7508 53194892. -0.066965734 0.21724892 -21.055946 29.506648 6826.0698 50357799. -0.071292858 0.22287357 -20.994912 29.334736 6828.3888 46552314. -0.075729264 0.22849822 -20.929387 29.138162 6830.7078 44151981. -0.080103528 0.23412287 -20.867282 28.960390 6833.0269 42944141. -0.084395682 0.23974752 -20.806343 28.788623 6835.3459 44654506. -0.088399041 0.24537217 -20.740818 28.584771 6837.6649 49325800. -0.092146386 0.25099682 -20.682754 28.404126 6839.9839 50100461. -0.096273745 0.25662147 -20.627796 28.233390 6842.3029 46141075. -0.10087437 0.26224612 -20.562273 28.036818 6844.6220 39349842. -0.10601077 0.26787077 -20.496749 27.835440 6846.9410 39255354. -0.11033156 0.27349542 -20.434355 27.641325 6849.2600 39536402. -0.11462478 0.27912007 -20.379754 27.471454 6851.5790 44759628. -0.11819941 0.28474472 -20.318191 27.284571 6853.8981 46668981. -0.12237929 0.29036937 -20.252678 27.086107 6856.2171 44053049. -0.12736504 0.29599402 -20.187154 26.882255 6858.5361 44141727. -0.13214759 0.30161867 -20.131360 26.708674 6860.8551 41087621. -0.13797544 0.30724332 -20.074109 26.532328 6863.1741 38846707. -0.14442811 0.31286797 -20.008585 26.335755 6865.4932 37042439. -0.15321260 0.31849262 -19.949400 26.132900 6867.8122 34680199. -0.18000513 0.32411727 -19.887559 25.932676 6870.1312 33384736. -0.16915089 0.32974192 -19.822920 25.735219 6874.7693 32873583. -0.13472382 0.34099122 -19.709157 25.357469