# # 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 = 42.305009 km # Date (UTC) = 2015-11-29T10:17:18.663 # Date (julian) = 2457355.92868823 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6493.2167 8.8450309e+10 0.025306133 0.030237723 -29.089554 57.877100 6495.1685 8.0924868e+10 0.030715597 0.030826274 -29.235069 57.792856 6497.1202 7.4082513e+10 0.036012260 0.031414825 -29.380584 57.704911 6499.0720 6.8687995e+10 0.041364333 0.032003375 -29.526099 57.616837 6501.0238 6.4244619e+10 0.046973147 0.032591926 -29.668897 57.530120 6502.9755 5.9760646e+10 0.052884657 0.033180476 -29.806753 57.445874 6504.9273 5.5570499e+10 0.059285142 0.033769027 -29.944609 57.361628 6506.8791 5.1475444e+10 0.066278457 0.034357578 -30.073621 57.281803 6508.8308 4.7940578e+10 0.074123634 0.034946128 -30.199578 57.203506 6510.7826 4.5130098e+10 0.083086517 0.035534679 -30.325535 57.125208 6512.7344 4.2499671e+10 0.093024712 0.036123230 -30.457995 57.039033 6514.6862 3.9741474e+10 0.10382065 0.036711780 -30.592022 56.950959 6516.6379 3.6767937e+10 0.11536203 0.037300331 -30.726792 56.863628 6518.5897 3.3740484e+10 0.12759033 0.037888881 -30.864648 56.779382 6520.5415 3.0771580e+10 0.14044777 0.038477432 -31.002504 56.695136 6522.4932 2.7977324e+10 0.15246239 0.039046409 -31.135895 56.608659 6524.4450 2.5413388e+10 0.16087073 0.039585047 -31.266093 56.520584 6526.3968 2.3248524e+10 0.16780593 0.040084049 -31.396290 56.432510 6528.3485 2.1472441e+10 0.17395906 0.041718976 -31.515738 56.353944 6530.3003 2.0088284e+10 0.17821314 0.044249115 -31.634872 56.275656 6532.2521 1.8937469e+10 0.18043393 0.046894770 -31.754248 56.197040 6534.2038 1.7753306e+10 0.17998552 0.048001579 -31.880616 56.108966 6536.1556 1.6508111e+10 0.17834596 0.047929728 -32.006985 56.020891 6538.1074 1.5238041e+10 0.17841076 0.049208968 -32.134970 55.931200 6540.0591 1.4047309e+10 0.17783226 0.050882044 -32.265166 55.839295 6542.0109 1.2982653e+10 0.17542741 0.051006382 -32.395362 55.747390 6543.9627 1.2063451e+10 0.17331138 0.051634554 -32.511081 55.666518 6545.9145 1.1303357e+10 0.17142137 0.052463760 -32.623422 55.588220 6547.8662 1.0638076e+10 0.17042240 0.053616772 -32.735763 55.509923 6549.8180 9.9861176e+09 0.16904690 0.054799875 -32.857009 55.423087 6551.7698 9.3243873e+09 0.16734638 0.055505948 -32.979548 55.335013 6553.7215 8.6310099e+09 0.16529845 0.054972366 -33.102087 55.246938 6555.6733 8.0035667e+09 0.16339875 0.054287637 -33.224625 55.158864 6557.6251 7.4166996e+09 0.16162318 0.053474316 -33.347164 55.070789 6559.5768 6.8663904e+09 0.15913574 0.052322073 -33.467212 54.980223 6561.5286 6.3625466e+09 0.15630200 0.051112199 -33.585921 54.888319 6563.4804 5.9126116e+09 0.15349730 0.049372692 -33.704117 54.796946 6565.4321 5.5584303e+09 0.15087988 0.047827700 -33.809634 54.718658 6567.3839 5.2829304e+09 0.14830983 0.046292586 -33.915151 54.640371 6569.3357 5.0501837e+09 0.14539054 0.044874272 -34.022002 54.561094 6571.2874 4.8021698e+09 0.14278969 0.044424769 -34.140711 54.473020 6573.2392 4.5405302e+09 0.14021435 0.043465521 -34.259421 54.384945 6575.1910 4.2617228e+09 0.13792303 0.042183096 -34.376264 54.294988 6577.1427 3.9921563e+09 0.13573078 0.039996150 -34.491161 54.203070 6579.0945 3.7399923e+09 0.13321727 0.037018538 -34.606058 54.111151 6581.0463 3.5240147e+09 0.13116652 0.035582593 -34.709723 54.031210 6582.9981 3.3644623e+09 0.12952512 0.035022196 -34.811836 53.952923 6584.9498 3.2281390e+09 0.12751700 0.033998107 -34.913950 53.874636 6586.9016 3.0936577e+09 0.12538956 0.033159641 -35.024472 53.783539 6588.8534 2.9360478e+09 0.12345278 0.033094949 -35.135523 53.691636 6590.8051 2.7627980e+09 0.12115969 0.029564403 -35.246574 53.599732 6592.7569 2.5895670e+09 0.11914579 0.027338349 -35.357625 53.507828 6594.7087 2.4360980e+09 0.11680628 0.025783501 -35.468676 53.415923 6596.6604 2.3026644e+09 0.11409643 0.025724271 -35.568423 53.333795 6598.6122 2.1949359e+09 0.11196385 0.025114879 -35.663729 53.255507 6600.5640 2.1048652e+09 0.11121364 0.026149294 -35.759035 53.177220 6602.5157 2.0147225e+09 0.10994582 0.027076522 -35.866623 53.088311 6604.4675 1.9294964e+09 0.10825228 0.026348867 -35.977674 52.996406 6606.4193 1.8372646e+09 0.10704473 0.026750538 -36.087433 52.904502 6608.3710 1.7395782e+09 0.10418807 0.023722561 -36.190826 52.812599 6610.3228 1.6374858e+09 0.10104778 0.024311419 -36.294218 52.720695 6612.2746 1.5457042e+09 0.098683571 0.024115595 -36.393112 52.634476 6614.2264 1.4763935e+09 0.097113631 0.023784546 -36.488430 52.552773 6616.1781 1.4192277e+09 0.095219636 0.023310255 -36.583748 52.471071 6618.1299 1.3639634e+09 0.094500177 0.023868876 -36.684070 52.385420 6620.0817 1.3011240e+09 0.093975417 0.024793511 -36.787462 52.297345 6622.0334 1.2333055e+09 0.093041523 0.024749096 -36.890811 52.209228 6623.9852 1.1762796e+09 0.091409334 0.024856824 -36.990386 52.117336 6625.9370 1.1195226e+09 0.090628820 0.026515680 -37.089950 52.025433 6627.8887 1.0599973e+09 0.089173225 0.025660113 -37.191032 51.933529 6629.8405 1.0035018e+09 0.088129439 0.025957140 -37.294423 51.841624 6631.7923 9.4472948e+08 0.086674290 0.026011244 -37.397814 51.749720 6633.7440 8.9382426e+08 0.085498332 0.026282154 -37.489508 51.665838 6635.6958 8.5693624e+08 0.084171802 0.026504134 -37.578007 51.584147 6637.6476 8.2398203e+08 0.083075741 0.025844250 -37.666507 51.502457 6639.5993 7.9261497e+08 0.082527241 0.025413857 -37.761138 51.412109 6641.5511 7.5922657e+08 0.082785532 0.025150172 -37.856871 51.320204 6643.5029 7.2346156e+08 0.082034898 0.025268547 -37.953513 51.228296 6645.4546 6.9598596e+08 0.081009149 0.025664670 -38.053089 51.136378 6647.4064 6.6770437e+08 0.079867994 0.026651760 -38.152666 51.044459 6649.3582 6.3847568e+08 0.078753502 0.027139948 -38.249841 50.952551 6651.3100 6.0643906e+08 0.078270279 0.026721699 -38.345574 50.860648 6653.2617 5.8106481e+08 0.077710502 0.027659287 -38.441249 50.768744 6655.2135 5.5684679e+08 0.076306562 0.027698431 -38.533159 50.676840 6657.1653 5.3032911e+08 0.074491890 0.029092806 -38.625064 50.584935 6659.1170 5.0547785e+08 0.073028123 0.031810187 -38.714229 50.497139 6661.0688 4.7958001e+08 0.071939182 0.032569988 -38.799325 50.415448 6663.0206 4.6374218e+08 0.071031801 0.032477514 -38.884420 50.333758 6664.9723 4.4844239e+08 0.070604639 0.028648365 -38.972676 50.247324 6666.9241 4.3323089e+08 0.070385312 0.027088668 -39.064580 50.155420 6668.8759 4.1725084e+08 0.069385374 0.028245856 -39.156483 50.063515 6670.8276 3.9550771e+08 0.069638549 0.026945201 -39.248387 49.971612 6672.7794 3.7756560e+08 0.069464580 0.027331357 -39.340292 49.879709 6674.7312 3.6051639e+08 0.068343473 0.029571585 -39.431271 49.786880 6676.6829 3.4353557e+08 0.066397997 0.032153877 -39.519345 49.691147 6678.6347 3.2720144e+08 0.065833334 0.030512091 -39.607420 49.595414 6680.5865 3.0831839e+08 0.066662995 0.029568062 -39.695494 49.502093 6682.5382 2.9479217e+08 0.067344456 0.030835786 -39.783569 49.410189 6684.4900 2.8190125e+08 0.067423257 0.032678958 -39.871643 49.318284 6686.4418 2.7129074e+08 0.066497434 0.034018122 -39.959731 49.226366 6688.3936 2.5849339e+08 0.064193146 0.033876036 -40.047820 49.134449 6690.3453 2.4765157e+08 0.062838946 0.033076289 -40.135903 49.042537 6692.2971 2.3759234e+08 0.061976736 0.032420334 -40.223979 48.950632 6694.2489 2.2467898e+08 0.061239189 0.030912235 -40.312054 48.858728 6696.2006 2.1641199e+08 0.061114722 0.029759143 -40.397079 48.766823 6698.1524 2.0892612e+08 0.060330395 0.030427001 -40.481324 48.674919 6700.1042 2.0151198e+08 0.058894599 0.030744982 -40.565568 48.583014 6702.0559 1.9441965e+08 0.057435106 0.032921394 -40.649814 48.491111 6704.0077 1.8486997e+08 0.057883676 0.036181336 -40.734060 48.399208 6705.9595 1.7722840e+08 0.058051896 0.038374353 -40.818305 48.305109 6707.9112 1.7017838e+08 0.057904683 0.040056292 -40.902551 48.209376 6709.8630 1.6154000e+08 0.057056712 0.040583628 -40.986797 48.113642 6711.8148 1.4920974e+08 0.055330040 0.041619226 -41.071042 48.021592 6713.7665 1.4113391e+08 0.053559302 0.046459056 -41.155286 47.929687 6715.7183 1.3091306e+08 0.052143433 0.048113260 -41.238189 47.837782 6717.6701 1.2354142e+08 0.050394442 0.049832821 -41.318604 47.745879 6719.6219 1.1902636e+08 0.049021332 0.050779034 -41.399020 47.653976 6721.5736 1.1115297e+08 0.049398689 0.050476734 -41.479437 47.562072 6723.5254 1.0612011e+08 0.048055661 0.049661962 -41.559854 47.470167 6725.4772 97593640. 0.044313865 0.041277963 -41.640272 47.377772 6727.4289 87379880. 0.043332092 0.040388934 -41.720700 47.282024 6729.3807 80275477. 0.042859283 0.040791685 -41.801127 47.186277 6731.3325 76068224. 0.041376368 0.042411688 -41.879571 47.092515 6733.2842 72765685. 0.040505849 0.045467483 -41.956158 47.000612 6735.2360 73818047. 0.041102129 0.049543964 -42.032746 46.908708 6737.1878 68764816. 0.042721579 0.054733707 -42.112798 46.816803 6739.1395 65590374. 0.043416769 0.062997319 -42.193214 46.724899 6741.0913 61980166. 0.042442964 0.066019100 -42.272505 46.632994 6743.0431 56918674. 0.039322647 0.071338019 -42.349091 46.541090 6744.9948 54324432. 0.036487184 0.078562898 -42.425678 46.449185 6746.9466 52116605. 0.032326136 0.067981863 -42.502265 46.354668 6748.8984 53984061. 0.032538232 0.071743307 -42.578852 46.258935 6750.8501 52817496. 0.029988312 0.073455794 -42.655905 46.162541 6752.8019 51001827. 0.027537815 0.073206509 -42.739057 46.057507 6754.7537 47638974. 0.026298206 0.075001450 -42.822210 45.952472 6756.7055 48246899. 0.023985026 0.075982146 -42.900202 45.857758 6758.6572 50838685. 0.024611959 0.075095107 -42.976789 45.765853 6760.6090 50046881. 0.025054566 0.077222589 -43.052707 45.673279 6762.5608 50166189. 0.029468434 0.077146294 -43.125464 45.577546 6764.5125 45279283. 0.031264067 0.079507839 -43.198221 45.481813 6766.4643 44398055. 0.027488516 0.080763995 -43.270978 45.388237 6768.4161 49714761. 0.028073995 0.082353127 -43.343734 45.296334 6770.3678 52908299. 0.030705850 0.087771860 -43.416491 45.204431