# # 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 = 49.554274 km # Date (UTC) = 2015-01-08T10:10:18.559 # Date (julian) = 2457030.92382591 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6513.7456 4.3349818e+10 0.11284445 0.036428144 -32.911805 49.463264 6515.6970 4.0693702e+10 0.12260663 0.037016600 -33.011353 49.367546 6517.6485 3.7955367e+10 0.13240272 0.037605056 -33.108173 49.271828 6519.5999 3.5423552e+10 0.14231552 0.038193512 -33.203891 49.176110 6521.5514 3.3114241e+10 0.15235840 0.038781968 -33.298541 49.081460 6523.5028 3.1063736e+10 0.15823264 0.039303737 -33.383623 48.996379 6525.4543 2.9173072e+10 0.16282311 0.039730369 -33.468704 48.911297 6527.4057 2.7496636e+10 0.16691842 0.041011041 -33.554888 48.824493 6529.3572 2.5963568e+10 0.16950912 0.042804762 -33.646776 48.728775 6531.3086 2.4411959e+10 0.17155683 0.045677921 -33.738665 48.633057 6533.2601 2.2817268e+10 0.17369259 0.047630123 -33.832660 48.537339 6535.2116 2.1215505e+10 0.17417392 0.048132523 -33.928378 48.441621 6537.1630 1.9637280e+10 0.17414713 0.048762081 -34.024096 48.345903 6539.1145 1.8207574e+10 0.17349425 0.049782191 -34.116222 48.250185 6541.0659 1.6903212e+10 0.17262439 0.051305149 -34.208112 48.154467 6543.0174 1.5726634e+10 0.17164634 0.051386455 -34.298756 48.058744 6544.9688 1.4590820e+10 0.17074404 0.052430286 -34.386830 47.963012 6546.9203 1.3550572e+10 0.16898457 0.053221777 -34.474903 47.867279 6548.8717 1.2626478e+10 0.16685177 0.053927979 -34.558404 47.776730 6550.8232 1.1858073e+10 0.16529923 0.055191482 -34.640083 47.688246 6552.7747 1.1201423e+10 0.16399044 0.055391786 -34.721761 47.599762 6554.7261 1.0556601e+10 0.16214031 0.054847617 -34.808397 47.505659 6556.6776 9.9210835e+09 0.16003495 0.053913511 -34.896457 47.409941 6558.6290 9.2735239e+09 0.15787654 0.052703300 -34.984517 47.314224 6560.5805 8.6662275e+09 0.15566204 0.051750934 -35.072577 47.218506 6562.5319 8.1005704e+09 0.15359836 0.050373749 -35.160638 47.122788 6564.4834 7.5618535e+09 0.15136766 0.048552526 -35.241404 47.032952 6566.4348 7.1249000e+09 0.14944750 0.046936894 -35.316275 46.947871 6568.3863 6.7253600e+09 0.14801473 0.045416561 -35.391146 46.862789 6570.3378 6.3599473e+09 0.14679877 0.044777600 -35.471770 46.768816 6572.2892 6.0318631e+09 0.14524283 0.044064533 -35.556002 46.669269 6574.2407 5.6632923e+09 0.14316365 0.042739415 -35.640235 46.569736 6576.1921 5.3377712e+09 0.14116722 0.041150259 -35.724480 46.474000 6578.1436 5.0245249e+09 0.13905966 0.038422892 -35.808725 46.378267 6580.0950 4.7077961e+09 0.13694434 0.036432931 -35.892965 46.282541 6582.0465 4.4136882e+09 0.13479947 0.035281145 -35.977197 46.186823 6583.9979 4.1293908e+09 0.13260282 0.034516553 -36.061429 46.091105 6585.9494 3.8941141e+09 0.13049729 0.033211752 -36.138364 46.003678 6587.9009 3.7117371e+09 0.12871231 0.033357964 -36.213235 45.918597 6589.8523 3.5647469e+09 0.12613448 0.031355077 -36.288106 45.833515 6591.8038 3.4230000e+09 0.12317015 0.028294958 -36.367629 45.736267 6593.7552 3.2712400e+09 0.12067046 0.026400097 -36.448032 45.636721 6595.7067 3.1103994e+09 0.11819261 0.025696855 -36.528435 45.538053 6597.6581 2.9501570e+09 0.11649992 0.025515047 -36.608840 45.442335 6599.6096 2.8024919e+09 0.11557427 0.024966394 -36.689244 45.346617 6601.5610 2.6599665e+09 0.11544910 0.027309907 -36.769647 45.250899 6603.5125 2.5134005e+09 0.11445077 0.026359878 -36.850050 45.155181 6605.4639 2.3649525e+09 0.11421315 0.027054260 -36.930383 45.059504 6607.4154 2.2388318e+09 0.11285642 0.024886727 -36.998449 44.971018 6609.3669 2.1424957e+09 0.11008758 0.023814906 -37.066514 44.882533 6611.3183 2.0631849e+09 0.10746434 0.024755465 -37.135410 44.793560 6613.2698 1.9835459e+09 0.10650961 0.023672570 -37.215825 44.697828 6615.2212 1.8962290e+09 0.10526829 0.023258338 -37.296239 44.602096 6617.1727 1.8046491e+09 0.10408178 0.023496501 -37.374904 44.506370 6619.1241 1.7191509e+09 0.10332823 0.024555866 -37.451478 44.410652 6621.0756 1.6405184e+09 0.10245186 0.025064391 -37.528053 44.314934 6623.0270 1.5589532e+09 0.10101747 0.024501847 -37.604628 44.219216 6624.9785 1.4816275e+09 0.099599103 0.025386097 -37.681202 44.123498 6626.9300 1.4102523e+09 0.097491576 0.025406050 -37.755012 44.029459 6628.8814 1.3505453e+09 0.096240623 0.026060958 -37.819673 43.940975 6630.8329 1.3051881e+09 0.094361511 0.025930354 -37.884334 43.852492 6632.7843 1.2587035e+09 0.092737299 0.026126392 -37.952495 43.761883 6634.7358 1.2124871e+09 0.091061352 0.026380514 -38.029070 43.666165 6636.6872 1.1614219e+09 0.089508661 0.026282872 -38.105644 43.570447 6638.6387 1.1113827e+09 0.088571302 0.025643816 -38.179608 43.474729 6640.5901 1.0608933e+09 0.089126238 0.025198447 -38.252353 43.379010 6642.5416 1.0069116e+09 0.089172220 0.025173860 -38.325099 43.283023 6644.4931 9.5465965e+08 0.088418299 0.025396895 -38.397844 43.183476 6646.4445 9.0559464e+08 0.087598395 0.026150240 -38.470589 43.083928 6648.3960 8.6243368e+08 0.086761374 0.027229345 -38.543340 42.986129 6650.3474 8.1783052e+08 0.086381367 0.026334772 -38.616097 42.890397 6652.2989 7.7605853e+08 0.086038205 0.027332754 -38.688854 42.794665 6654.2503 7.4088049e+08 0.085341194 0.027929582 -38.751874 42.707952 6656.2018 7.1527385e+08 0.083627703 0.028200525 -38.813133 42.622871 6658.1532 6.9209831e+08 0.082266269 0.030332858 -38.874392 42.537790 6660.1047 6.6729223e+08 0.080919610 0.031721163 -38.946085 42.439568 6662.0562 6.3952742e+08 0.079499794 0.033012766 -39.018830 42.340022 6664.0076 6.1356916e+08 0.078151255 0.032178250 -39.090440 42.241612 6665.9591 5.8686193e+08 0.078231230 0.026975671 -39.159357 42.145893 6667.9105 5.5707847e+08 0.077565237 0.027437907 -39.228274 42.050175 6669.8620 5.3079516e+08 0.076866340 0.027470395 -39.297192 41.954457 6671.8134 5.0525349e+08 0.076596180 0.026876940 -39.366109 41.858739 6673.7649 4.8710374e+08 0.075784776 0.028603159 -39.435026 41.762742 6675.7163 4.6526768e+08 0.073747825 0.031170411 -39.503943 41.663194 6677.6678 4.4498808e+08 0.072407000 0.031408877 -39.572860 41.563647 6679.6193 4.2545830e+08 0.072255399 0.029756050 -39.640011 41.465865 6681.5707 4.0492857e+08 0.073143335 0.030095195 -39.705098 41.370147 6683.5222 3.8856621e+08 0.073634428 0.031953814 -39.770186 41.274429 6685.4736 3.7295705e+08 0.073453551 0.033205093 -39.838526 41.178711 6687.4251 3.6370023e+08 0.071618330 0.034105833 -39.907443 41.082993 6689.3765 3.4845094e+08 0.069418329 0.033677089 -39.975454 40.986362 6691.3280 3.2954751e+08 0.068731655 0.032923881 -40.040553 40.886801 6693.2794 3.1244676e+08 0.068109177 0.031508224 -40.105651 40.787240 6695.2309 3.0005974e+08 0.067756595 0.029817062 -40.170743 40.690085 6697.1823 2.9698417e+08 0.067094721 0.030114342 -40.235830 40.594367 6699.1338 2.9124970e+08 0.065782919 0.031466970 -40.300918 40.498649 6701.0853 2.8063790e+08 0.064105137 0.031534545 -40.366007 40.402931 6703.0367 2.6919389e+08 0.063889702 0.033767105 -40.431096 40.307213 6704.9882 2.6166801e+08 0.063925996 0.036662797 -40.496184 40.211495 6706.9396 2.5503165e+08 0.063430724 0.040081748 -40.561271 40.115778 6708.8911 2.4584424e+08 0.062822264 0.041013933 -40.626359 40.020060 6710.8425 2.3744463e+08 0.061204204 0.040661411 -40.691448 39.921316 6712.7940 2.2559416e+08 0.059285707 0.043304134 -40.756537 39.821769 6714.7454 2.1714676e+08 0.057260371 0.047359451 -40.820942 39.722906 6716.6969 2.0811609e+08 0.055318295 0.049427831 -40.882202 39.627188 6718.6484 1.9795931e+08 0.053073056 0.050822180 -40.943461 39.531470 6720.5998 1.9214112e+08 0.052761874 0.050350268 -41.004721 39.435753 6722.5513 1.8442115e+08 0.052057446 0.049923695 -41.065980 39.340035 6724.5027 1.8170856e+08 0.048847605 0.045728608 -41.127239 39.244317 6726.4542 1.7627157e+08 0.046063923 0.040955464 -41.188499 39.144942 6728.4056 1.6852451e+08 0.045478700 0.040203014 -41.249758 39.045395 6730.3571 1.6089649e+08 0.043922034 0.040868514 -41.311018 38.947161 6732.3085 1.4918130e+08 0.042352609 0.043797011 -41.372277 38.851442 6734.2600 1.4419695e+08 0.041467035 0.049337956 -41.433537 38.755724 6736.2115 1.3756893e+08 0.042843751 0.051154420 -41.494803 38.659995 6738.1629 1.3512067e+08 0.043700955 0.058217981 -41.556072 38.564263 6740.1144 1.3163522e+08 0.043200207 0.064245734 -41.617339 38.468533 6742.0658 1.2550655e+08 0.040852526 0.068771133 -41.678599 38.372815 6744.0173 1.2475938e+08 0.036239158 0.077806774 -41.739858 38.277097 6745.9687 1.1786239e+08 0.035053433 0.078974133 -41.799172 38.181379 6747.9202 1.1478066e+08 0.030723410 0.067044377 -41.856602 38.085661 6749.8716 1.0931255e+08 0.028150025 0.072039277 -41.914032 37.989943 6751.8231 1.0515458e+08 0.025289708 0.074059681 -41.982739 37.878049 6753.7746 1.0307147e+08 0.023871901 0.075483880 -42.052752 37.764280 6755.7260 98273781. 0.021480827 0.074287038 -42.115080 37.661536 6757.6775 93635917. 0.020015405 0.074684139 -42.172510 37.565818 6759.6289 90266289. 0.020505681 0.075971723 -42.229941 37.470099 6761.5804 85529605. 0.022366285 0.078016175 -42.287372 37.374382 6763.5318 81668103. 0.025845674 0.078057458 -42.344803 37.278664 6765.4833 79587251. 0.027569451 0.079619418 -42.405411 37.177651 6767.4347 73891322. 0.025762032 0.081488971 -42.471046 37.068257 6769.3862 72635223. 0.021260043 0.085390951 -42.535846 36.960255 6771.3376 68849507. 0.017276955 0.090124088 -42.593278 36.864538 6773.2891 68092748. 0.013542866 0.094857225 -42.650709 36.768820 6775.2406 70954529. 0.010143024 0.099590362 -42.706264 36.673102 6777.1920 71743548. 0.0063586526 0.10432350 -42.759866 36.577384 6779.1435 69014644. 0.0019027084 0.10905664 -42.813467 36.481666 6781.0949 63733786. -0.0034662229 0.11378977 -42.877638 36.370094 6783.0464 59040564. -0.0098010780 0.11852291 -42.943276 36.256323 6784.9978 56869506. -0.017375045 0.12325605 -43.001778 36.153254 6786.9493 54488304. -0.029908598 0.12798918 -43.055380 36.057536 6788.9007 53424611. -0.083680911 0.13272232 -43.108983 35.961817 6790.8522 50848985. -0.047037630 0.13745546 -43.174389 35.852684 6792.8037 48737503. 0.044340260 0.14218860 -43.240024 35.743290