# # 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 = 53.963218 km # Date (UTC) = 2013-11-28T10:46:49.964 # Date (julian) = 2456624.94918940 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6492.4205 8.8617629e+10 0.027455390 0.029997644 93.038227 29.680113 6494.7322 7.6468262e+10 0.034987662 0.030694717 93.097186 29.548586 6497.0439 6.6739369e+10 0.042033364 0.031391790 93.156146 29.420609 6499.3555 5.9259236e+10 0.048657683 0.032088863 93.215105 29.293617 6501.6672 5.3224019e+10 0.055065709 0.032785936 93.274066 29.166624 6503.9788 4.7771788e+10 0.061452129 0.033483009 93.333029 29.039632 6506.2905 4.3304525e+10 0.068056580 0.034180082 93.390299 28.912640 6508.6021 3.9254417e+10 0.075072265 0.034877155 93.444722 28.785649 6510.9138 3.5774900e+10 0.082758390 0.035574228 93.498807 28.661027 6513.2254 3.3065077e+10 0.091600443 0.036271301 93.551225 28.548132 6515.5371 3.0861635e+10 0.10179627 0.036968375 93.603642 28.435237 6517.8487 2.8803969e+10 0.11324731 0.037665448 93.657439 28.309526 6520.1604 2.6558094e+10 0.12576156 0.038362521 93.711862 28.177998 6522.4720 2.4324498e+10 0.13809417 0.039040860 93.766286 28.048662 6524.7837 2.2299180e+10 0.14696592 0.039705371 93.820713 27.921670 6527.0953 2.0533130e+10 0.15516829 0.040785693 93.876400 27.794678 6529.4070 1.8860688e+10 0.16235623 0.042884102 93.935359 27.667685 6531.7187 1.7244236e+10 0.16953831 0.046274690 93.993986 27.540693 6534.0303 1.5730503e+10 0.17393515 0.047953036 94.048413 27.413702 6536.3420 1.4378740e+10 0.17530233 0.048096464 94.102839 27.286711 6538.6536 1.3270535e+10 0.17575234 0.049474958 94.152013 27.171974 6540.9653 1.2364881e+10 0.17393638 0.051310121 94.200391 27.059094 6543.2769 1.1583568e+10 0.17176592 0.051454573 94.251117 26.940732 6545.5886 1.0811588e+10 0.16952364 0.052460840 94.305548 26.813721 6547.9002 1.0031738e+10 0.16782851 0.053629706 94.359978 26.686714 6550.2119 9.2811958e+09 0.16623180 0.055038414 94.414404 26.559723 6552.5235 8.6055449e+09 0.16449260 0.055454992 94.468831 26.432732 6554.8352 7.9875083e+09 0.16263334 0.054849906 94.518818 26.305739 6557.1468 7.4265719e+09 0.16054223 0.053774064 94.568708 26.178747 6559.4585 6.8920438e+09 0.15805973 0.052335430 94.622105 26.055264 6561.7702 6.3958835e+09 0.15557654 0.050993167 94.676528 25.932807 6564.0818 5.9474207e+09 0.15282764 0.048734523 94.727513 25.815798 6566.3935 5.5854400e+09 0.15088957 0.046960305 94.775891 25.702918 6568.7051 5.2827764e+09 0.14906626 0.045123495 94.824402 25.588794 6571.0168 4.9941349e+09 0.14739910 0.044498696 94.874292 25.461802 6573.3284 4.7043229e+09 0.14542446 0.043393931 94.924182 25.334810 6575.6401 4.4084856e+09 0.14302199 0.041732512 94.978079 25.207818 6577.9517 4.1421209e+09 0.14034723 0.038725437 95.032506 25.080826 6580.2634 3.8894950e+09 0.13738315 0.036277350 95.083854 24.953835 6582.5750 3.6422449e+09 0.13458596 0.035137311 95.133744 24.826843 6584.8867 3.4283228e+09 0.13191103 0.034032498 95.181009 24.708437 6587.1983 3.2576826e+09 0.12941274 0.033202315 95.225358 24.599574 6589.5100 3.1235143e+09 0.12719897 0.032034190 95.269716 24.490681 6591.8217 2.9914996e+09 0.12482839 0.028274773 95.319561 24.363838 6594.1333 2.8432403e+09 0.12267026 0.026099346 95.369450 24.236846 6596.4450 2.6893096e+09 0.12022189 0.025725251 95.419340 24.109854 6598.7566 2.5429591e+09 0.11852707 0.025045932 95.469230 23.982862 6601.0683 2.4069606e+09 0.11863961 0.027077839 95.519120 23.858518 6603.3799 2.2695219e+09 0.11773523 0.026438363 95.569010 23.736062 6605.6916 2.1425877e+09 0.11735999 0.027245218 95.616800 23.617233 6608.0032 2.0364631e+09 0.11534259 0.023732286 95.661146 23.504353 6610.3149 1.9456628e+09 0.11217613 0.024303839 95.705491 23.391473 6612.6265 1.8615459e+09 0.11027128 0.023852630 95.754818 23.269991 6614.9382 1.7735482e+09 0.10908312 0.023294118 95.804708 23.147535 6617.2498 1.6822654e+09 0.10769514 0.023522083 95.854603 23.021920 6619.5615 1.5932396e+09 0.10696269 0.024661394 95.904500 22.894909 6621.8731 1.5054857e+09 0.10576908 0.024800038 95.954394 22.767907 6624.1848 1.4169733e+09 0.10379501 0.024961233 96.004284 22.640915 6626.4965 1.3370988e+09 0.10213119 0.025958373 96.051453 22.519077 6628.8081 1.2789717e+09 0.10033445 0.026031195 96.091767 22.410230 6631.1198 1.2281596e+09 0.098158158 0.025942931 96.132080 22.301382 6633.4314 1.1820048e+09 0.096230761 0.026227574 96.180089 22.181599 6635.7431 1.1300074e+09 0.094240021 0.026511222 96.229979 22.059142 6638.0547 1.0749343e+09 0.092915648 0.025669258 96.279869 21.933970 6640.3664 1.0228405e+09 0.092924583 0.025225825 96.329759 21.806977 6642.6780 9.7283438e+08 0.092963594 0.025179443 96.377863 21.681771 6644.9897 9.2716829e+08 0.092151278 0.025450570 96.423216 21.559315 6647.3013 8.8545230e+08 0.091048735 0.026596436 96.468570 21.436001 6649.6130 8.4653070e+08 0.090166701 0.026788708 96.513923 21.309010 6651.9246 8.0393329e+08 0.089792682 0.027192773 96.559278 21.182021 6654.2363 7.6079087e+08 0.089142318 0.027935560 96.609102 21.059473 6656.5480 7.2244104e+08 0.087295170 0.028504353 96.658999 20.936998 6658.8596 6.9050726e+08 0.085632217 0.031585609 96.701425 20.825146 6661.1713 6.6427203e+08 0.084149986 0.032622176 96.741739 20.716297 6663.4829 6.3877509e+08 0.082699299 0.032349385 96.783560 20.603379 6665.7946 6.1349428e+08 0.082324913 0.027245203 96.828918 20.480923 6668.1062 5.8883769e+08 0.081424005 0.027564773 96.874275 20.358040 6670.4179 5.6234113e+08 0.080798719 0.027135038 96.919628 20.231048 6672.7295 5.3807131e+08 0.080306281 0.027302447 96.964982 20.104056 6675.0412 5.1446414e+08 0.078604590 0.029877237 97.010335 19.981097 6677.3528 4.9521953e+08 0.076304285 0.031856624 97.055688 19.858641 6679.6645 4.7243466e+08 0.075987188 0.029718667 97.101042 19.736184 6681.9761 4.4950934e+08 0.076676813 0.030406240 97.146395 19.613728 6684.2878 4.2656826e+08 0.076660061 0.032668696 97.191749 19.491271 6686.5995 4.0749573e+08 0.075281671 0.034109854 97.237103 19.368815 6688.9111 3.9300369e+08 0.072108127 0.033995504 97.282457 19.246359 6691.2228 3.7318895e+08 0.071075601 0.032948706 97.327814 19.123902 6693.5344 3.5488271e+08 0.070183813 0.031420752 97.373172 19.001444 6695.8461 3.4063506e+08 0.069908278 0.029704061 97.418532 18.878970 6698.1577 3.3021953e+08 0.069019444 0.030434305 97.463892 18.756495 6700.4694 3.1816112e+08 0.067213473 0.031015865 97.509246 18.634036 6702.7810 2.9988693e+08 0.066450789 0.033500383 97.554600 18.511579 6705.0927 2.8017704e+08 0.066801942 0.036833373 97.599953 18.389124 6707.4043 2.6965919e+08 0.066411779 0.040128906 97.645307 18.266668 6709.7160 2.6352557e+08 0.065396500 0.040677140 97.688595 18.144212 6712.0276 2.5675180e+08 0.063121899 0.041881279 97.729416 18.021754 6714.3393 2.4585525e+08 0.060915105 0.047328917 97.771373 17.899297 6716.6509 2.3340387e+08 0.058939284 0.049360147 97.816727 17.776841 6718.9626 2.2482691e+08 0.056357465 0.051311594 97.861872 17.654384 6721.2743 2.1751943e+08 0.056697350 0.050386533 97.902689 17.531928 6723.5859 2.0785281e+08 0.055084793 0.049695716 97.943507 17.409471 6725.8976 1.9598396e+08 0.050941657 0.041015355 97.988142 17.287016 6728.2092 1.8557120e+08 0.050133020 0.039924628 98.033499 17.164560 6730.5209 1.7722779e+08 0.048518174 0.041093080 98.075968 17.044989 6732.8325 1.7190284e+08 0.047028275 0.043893474 98.116785 16.927067 6735.1442 1.6765192e+08 0.047068429 0.049446488 98.159559 16.807190 6737.4558 1.6321804e+08 0.048662475 0.055587628 98.204912 16.684733 6739.7675 1.5493309e+08 0.048864351 0.063765807 98.249241 16.562273 6742.0791 1.4630162e+08 0.046654991 0.068803587 98.290067 16.439798 6744.3908 1.3707134e+08 0.042138371 0.078095680 98.330993 16.317323 6746.7024 1.3016827e+08 0.038527378 0.070820557 98.376347 16.194867 6749.0141 1.2925646e+08 0.037413401 0.072274073 98.421700 16.072410 6751.3258 1.2467828e+08 0.033893584 0.073849401 98.468112 15.939895 6753.6374 1.1867591e+08 0.031634483 0.075040055 98.514761 15.805125 6755.9491 1.1475184e+08 0.029193536 0.074189242 98.556236 15.681287 6758.2607 1.1022536e+08 0.028697641 0.074256638 98.597057 15.558830 6760.5724 1.0645365e+08 0.029293565 0.077152751 98.637875 15.436374 6762.8840 1.0332344e+08 0.034342427 0.076624846 98.678692 15.313917 6765.1957 99340346. 0.037001980 0.079566914 98.722299 15.185574 6767.5073 95991435. 0.035798054 0.081407689 98.768952 15.050805 6769.8190 92535285. 0.030855338 0.086440654 98.812402 14.922793 6772.1306 85843116. 0.026792408 0.092047430 98.853219 14.800337 6774.4423 80417422. 0.022723280 0.097654207 98.895598 14.679441 6776.7539 77760041. 0.018610258 0.10326098 98.940955 14.561520 6779.0656 74891223. 0.014508971 0.10886776 98.986492 14.440534 6781.3773 72520692. 0.010402548 0.11447454 99.033141 14.300580 6783.6889 67141077. 0.0063773807 0.12008131 99.078567 14.165250 6786.0006 63489833. 0.0023185382 0.12568809 99.119388 14.047330 6788.3122 63632669. -0.0018357047 0.13129487 99.160211 13.929299 6790.6239 62713791. -0.0059468137 0.13690164 99.201676 13.789346 6792.9355 63093137. -0.010077573 0.14250842 99.243092 13.651062 6795.2472 59047441. -0.014096941 0.14811520 99.283912 13.533141 6797.5588 54254260. -0.018100895 0.15372197 99.324733 13.415221 6799.8705 51652705. -0.022148207 0.15932875 99.370630 13.282626 6802.1821 49174305. -0.026920717 0.16493552 99.417279 13.147857 6804.4938 47757992. -0.034346758 0.17054230 99.458439 13.024682 6806.8054 48621136. -0.036284634 0.17614908 99.499260 12.902225 6809.1171 49550146. -0.035424107 0.18175585 99.544375 12.770695