# # 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 = 36.022586 km # Date (UTC) = 2017-01-04T09:34:24.272 # Date (julian) = 2457757.89889204 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6512.1099 5.1595541e+10 0.11262218 0.035934910 -24.273558 48.766441 6513.4641 4.8530634e+10 0.11972689 0.036343286 -24.332602 48.707397 6514.8184 4.5391984e+10 0.12682569 0.036751661 -24.391647 48.648352 6516.1727 4.2929774e+10 0.13408817 0.037160037 -24.450691 48.589308 6517.5269 4.0642359e+10 0.14141609 0.037568413 -24.509736 48.530263 6518.8812 3.8166739e+10 0.14871695 0.037976788 -24.568780 48.471219 6520.2355 3.6085766e+10 0.15611741 0.038385164 -24.627825 48.412174 6521.5897 3.4038101e+10 0.16352619 0.038793540 -24.686869 48.353130 6522.9440 3.2027895e+10 0.16833371 0.039164452 -24.745914 48.294085 6524.2983 3.0055400e+10 0.17193403 0.039532925 -24.808556 48.229420 6525.6525 2.7994919e+10 0.17463673 0.039707741 -24.872325 48.162994 6527.0068 2.5889808e+10 0.17828149 0.040721416 -24.936094 48.096567 6528.3611 2.3930287e+10 0.17974191 0.041728929 -24.999863 48.030141 6529.7153 2.2306966e+10 0.18208717 0.043375270 -25.056569 47.971073 6531.0696 2.0936136e+10 0.18245156 0.045330004 -25.113259 47.912021 6532.4239 1.9900758e+10 0.18465499 0.047038300 -25.169949 47.852968 6533.7781 1.8883118e+10 0.18436916 0.047850277 -25.226639 47.793916 6535.1324 1.7837544e+10 0.18438727 0.048166855 -25.288740 47.729228 6536.4867 1.6742307e+10 0.18278318 0.048225949 -25.352509 47.662802 6537.8410 1.5597485e+10 0.18250042 0.049081696 -25.416278 47.596376 6539.1952 1.4519931e+10 0.18122983 0.049879933 -25.480031 47.529966 6540.5495 1.3583309e+10 0.18022667 0.051113693 -25.536724 47.470910 6541.9038 1.2815282e+10 0.17846588 0.051033450 -25.593407 47.411866 6543.2580 1.2220703e+10 0.17675409 0.051449611 -25.650090 47.352821 6544.6123 1.1666581e+10 0.17532446 0.052141045 -25.706773 47.293777 6545.9666 1.1047031e+10 0.17295713 0.052464226 -25.766851 47.229073 6547.3208 1.0412158e+10 0.17219051 0.053409366 -25.827964 47.162647 6548.6751 9.7382489e+09 0.17024781 0.053869250 -25.889076 47.096221 6550.0294 9.1275892e+09 0.16942573 0.054992709 -25.950163 47.029822 6551.3836 8.6247957e+09 0.16730703 0.055370408 -26.004489 46.970773 6552.7379 8.1920514e+09 0.16592099 0.055401041 -26.058810 46.911728 6554.0922 7.8451715e+09 0.16353094 0.054834314 -26.113130 46.852684 6555.4464 7.5052406e+09 0.16174375 0.054478263 -26.167451 46.793639 6556.8007 7.1495429e+09 0.15967176 0.053895409 -26.224951 46.728918 6558.1550 6.7675102e+09 0.15743495 0.053107263 -26.283406 46.662492 6559.5092 6.3580941e+09 0.15508451 0.052329704 -26.341861 46.596066 6560.8635 5.9879665e+09 0.15227930 0.051495762 -26.400291 46.529684 6562.2178 5.6603089e+09 0.15015015 0.050672699 -26.454621 46.470627 6563.5720 5.3789820e+09 0.14723331 0.049266666 -26.508950 46.411575 6564.9263 5.1537329e+09 0.14495010 0.048351802 -26.563278 46.352522 6566.2806 4.9418734e+09 0.14210264 0.047024173 -26.617606 46.293470 6567.6348 4.7396736e+09 0.14034345 0.046080426 -26.670106 46.234423 6568.9891 4.5412707e+09 0.13822930 0.044862450 -26.722065 46.175379 6570.3434 4.3490793e+09 0.13719661 0.044775278 -26.774024 46.116335 6571.6976 4.1819411e+09 0.13557475 0.044312740 -26.825984 46.057290 6573.0519 4.0210918e+09 0.13385514 0.043615838 -26.881436 45.994276 6574.4062 3.8423553e+09 0.13193537 0.042659927 -26.939891 45.927850 6575.7604 3.6378881e+09 0.13019204 0.041611759 -26.998346 45.861423 6577.1147 3.4329741e+09 0.12860672 0.040040213 -27.056801 45.794997 6578.4690 3.2588320e+09 0.12646141 0.037909068 -27.108399 45.734286 6579.8232 3.1051183e+09 0.12472790 0.036617932 -27.157996 45.675241 6581.1775 2.9927873e+09 0.12247753 0.035542861 -27.207594 45.616197 6582.5318 2.8886645e+09 0.12088387 0.035149087 -27.257191 45.557152 6583.8860 2.7835912e+09 0.11879703 0.034573197 -27.311573 45.494121 6585.2403 2.6730503e+09 0.11722406 0.033778660 -27.370028 45.427695 6586.5946 2.5396088e+09 0.11542400 0.033163610 -27.428483 45.361268 6587.9488 2.4140720e+09 0.11404944 0.033368594 -27.486938 45.294842 6589.3031 2.2982398e+09 0.11215265 0.032444655 -27.538520 45.234142 6590.6574 2.1984608e+09 0.11007741 0.029839262 -27.588123 45.175090 6592.0116 2.1234058e+09 0.10803192 0.028062227 -27.637727 45.116037 6593.3659 2.0566056e+09 0.10590509 0.026762044 -27.687331 45.056985 6594.7202 1.9892709e+09 0.10372278 0.025777186 -27.740298 44.993929 6596.0744 1.9059950e+09 0.10124169 0.025726935 -27.796096 44.927503 6597.4287 1.8068900e+09 0.099802272 0.025587445 -27.851894 44.861077 6598.7830 1.7133927e+09 0.098432516 0.025033348 -27.907693 44.794650 6600.1372 1.6268845e+09 0.098491782 0.025272007 -27.958658 44.733978 6601.4915 1.5563412e+09 0.098130224 0.027277160 -28.008255 44.674933 6602.8458 1.5047311e+09 0.097335672 0.026794887 -28.057852 44.615888 6604.2000 1.4581700e+09 0.096267117 0.026190052 -28.107449 44.556844 6605.5543 1.4020587e+09 0.096080164 0.027130061 -28.158979 44.492325 6606.9086 1.3352221e+09 0.095191589 0.025871289 -28.212120 44.423242 6608.2628 1.2615750e+09 0.093479136 0.023725422 -28.265261 44.354160 6609.6171 1.2021647e+09 0.091588592 0.023889241 -28.318403 44.285077 6610.9714 1.1514952e+09 0.089522673 0.024931104 -28.366927 44.223842 6612.3256 1.1061946e+09 0.088701863 0.024077446 -28.414163 44.164797 6613.6799 1.0641452e+09 0.088004377 0.023823050 -28.461399 44.105752 6615.0342 1.0266647e+09 0.087176914 0.023252583 -28.508635 44.046708 6616.3884 9.9346853e+08 0.085961343 0.023343265 -28.559109 43.983615 6617.7427 9.5927458e+08 0.085502236 0.023685492 -28.612257 43.917179 6619.0970 9.2094484e+08 0.084849451 0.024549313 -28.665406 43.850743 6620.4512 8.7966948e+08 0.084411242 0.024912610 -28.718554 43.784307 6621.8055 8.3689573e+08 0.083582008 0.024822457 -28.767064 43.723671 6623.1598 7.9764587e+08 0.082497270 0.024551021 -28.814299 43.664626 6624.5140 7.6285857e+08 0.081397093 0.025137475 -28.861535 43.605581 6625.8683 7.3299995e+08 0.080596054 0.026433760 -28.908771 43.546537 6627.2226 7.0916728e+08 0.079090374 0.025402789 -28.957795 43.483428 6628.5768 6.8761870e+08 0.078529092 0.025937300 -29.008279 43.417002 6629.9311 6.5717723e+08 0.077927267 0.025940757 -29.058763 43.350576 6631.2854 6.2923763e+08 0.076897162 0.025959755 -29.109247 43.284150 6632.6396 6.0079723e+08 0.076333885 0.026109044 -29.157175 43.223533 6633.9939 5.7320348e+08 0.075499549 0.026325780 -29.204410 43.164489 6635.3482 5.5885931e+08 0.074827664 0.026452003 -29.251645 43.105444 6636.7024 5.4174825e+08 0.073983758 0.026276964 -29.298880 43.046400 6638.0567 5.2392421e+08 0.073556694 0.025669171 -29.347912 42.983274 6639.4110 5.0830302e+08 0.073246579 0.025481181 -29.398396 42.916847 6640.7652 4.8012623e+08 0.073883988 0.025177023 -29.448881 42.850421 6642.1195 4.5191621e+08 0.074040111 0.025156587 -29.499365 42.783994 6643.4738 4.3085600e+08 0.073595497 0.025264154 -29.545425 42.723389 6644.8281 4.1418862e+08 0.073152473 0.025433100 -29.590305 42.664336 6646.1823 4.0807611e+08 0.072380327 0.026014521 -29.635185 42.605284 6647.5366 4.0386382e+08 0.071770669 0.026720294 -29.680065 42.546232 6648.8909 3.8618150e+08 0.071017969 0.027560623 -29.728059 42.483081 6650.2451 3.6909965e+08 0.071020135 0.026311352 -29.778543 42.416655 6651.5994 3.5571912e+08 0.070704449 0.026943508 -29.829026 42.350229 6652.9537 3.4142255e+08 0.070603712 0.027512910 -29.879510 42.283803 6654.3079 3.3249109e+08 0.069922959 0.027905049 -29.927889 42.217377 6655.6622 3.1570327e+08 0.068922153 0.027883833 -29.975716 42.150950 6657.0165 3.0417282e+08 0.067896543 0.028920198 -30.023542 42.084524 6658.3707 2.9412097e+08 0.067187914 0.030718561 -30.071218 42.018241 6659.7250 2.8041987e+08 0.066543780 0.031683365 -30.113729 41.956835 6661.0793 2.6920473e+08 0.065809789 0.032575316 -30.156242 41.895428 6662.4335 2.5980611e+08 0.065249286 0.032801040 -30.198754 41.834021 6663.7878 2.6196624e+08 0.064418786 0.032264897 -30.241266 41.772614 6665.1421 2.5147532e+08 0.064687487 0.028314366 -30.290113 41.707219 6666.4963 2.3751167e+08 0.064677379 0.027005310 -30.340597 41.640793 6667.8506 2.2552787e+08 0.064413170 0.027415894 -30.391081 41.574367 6669.2049 2.1197640e+08 0.063816139 0.028145299 -30.441401 41.507940 6670.5591 2.1243337e+08 0.064061147 0.027069599 -30.486570 41.441514 6671.9134 2.0414054e+08 0.064038051 0.026878365 -30.531739 41.375088 6673.2677 1.9841541e+08 0.063839378 0.027859521 -30.576909 41.308662 6674.6219 1.9377090e+08 0.063012765 0.029479427 -30.621370 41.244208 6675.9762 1.8405078e+08 0.061609619 0.031668126 -30.663888 41.185155 6677.3305 1.7632927e+08 0.060898908 0.031888434 -30.706405 41.126103 6678.6847 1.7309217e+08 0.060594939 0.030478639 -30.748923 41.067051 6680.0390 1.6622221e+08 0.061259640 0.029449837 -30.791620 41.007750 6681.3933 1.5844054e+08 0.061887733 0.029959063 -30.839447 40.941323 6682.7475 1.5071502e+08 0.062438145 0.030995684 -30.887273 40.874897 6684.1018 1.4236980e+08 0.062565524 0.032659257 -30.935100 40.808471 6685.4561 1.3907886e+08 0.062442721 0.033186553 -30.982208 40.742044 6686.8103 1.3688620e+08 0.061394052 0.034232547 -31.027378 40.675618 6688.1646 1.3122897e+08 0.059990062 0.033823185 -31.072548 40.609191 6689.5189 1.2366475e+08 0.058766520 0.033548963 -31.117718 40.542765 6690.8731 1.1645665e+08 0.058421166 0.033015802 -31.160345 40.480079 6692.2274 1.1110660e+08 0.058032090 0.032501265 -31.200495 40.421035 6693.5817 1.0877825e+08 0.057647733 0.031404541 -31.240645 40.361990 6694.9359 1.0882246e+08 0.057635007 0.029949268 -31.280795 40.302946 6696.2902 1.0164660e+08 0.057625689 0.029796358 -31.323038 40.241889 6697.6445 99947809. 0.057302500 0.030172824 -31.370865 40.175463 6698.9987 99900799. 0.056508943 0.031588694 -31.418692 40.109037 6700.3530 96096881. 0.055680678 0.030929549 -31.466519 40.042610 6701.7073 95719217. 0.054737104 0.032447209 -31.511641 39.976184 6703.0615 89847108. 0.055148730 0.033829216 -31.554153 39.909758 6704.4158 87393251. 0.055379137 0.036381734 -31.596666 39.843332 6705.7701 82306931. 0.055588940 0.038037634 -31.639179 39.776906 6707.1243 77820467. 0.055535432 0.040169015 -31.683672 39.710480 6708.4786 74391861. 0.055461070 0.040564761 -31.728842 39.644053 6709.8329 72832006. 0.054892427 0.040602797 -31.774012 39.577627 6711.1871 70202891. 0.053835333 0.040905144 -31.819182 39.511200 6712.5414 62516073. 0.052925770 0.042835167 -31.864352 39.444774 6713.8957 58972909. 0.051836863 0.046926077 -31.909522 39.378348 6715.2499 56573986. 0.050976569 0.047634219 -31.954692 39.311922 6716.6042 54670366. 0.050145174 0.049291300 -31.998251 39.247106 6717.9585 55736938. 0.048477757 0.049814982 -32.036045 39.188053 6719.3127 54917868. 0.046516653 0.051072712 -32.073839 39.129001