# # 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 = 52.026690 km # Date (UTC) = 2014-12-15T09:16:37.042 # Date (julian) = 2457006.88653984 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6501.0176 5.7967411e+10 0.046932690 0.032590075 -19.077966 50.850242 6503.1471 4.9919032e+10 0.054015146 0.033232212 -19.181950 50.764827 6505.2766 4.8306402e+10 0.062465485 0.033874348 -19.285933 50.676343 6507.4061 4.7672404e+10 0.071662675 0.034516485 -19.389917 50.587213 6509.5355 4.5776436e+10 0.081057723 0.035158621 -19.493404 50.498084 6511.6650 4.3052366e+10 0.090697081 0.035800757 -19.593674 50.408956 6513.7945 4.0342688e+10 0.10078314 0.036442894 -19.693944 50.319828 6515.9239 3.6914749e+10 0.11090079 0.037085030 -19.794220 50.230694 6518.0534 3.4622334e+10 0.12201589 0.037727166 -19.894503 50.141552 6520.1829 3.1942644e+10 0.13333757 0.038369303 -19.994787 50.052411 6522.3123 2.8500675e+10 0.14356482 0.038999043 -20.095060 49.963280 6524.4418 2.5648604e+10 0.14938727 0.039583919 -20.195330 49.874152 6526.5713 2.2266698e+10 0.15350198 0.040267019 -20.295393 49.785024 6528.7008 2.0095708e+10 0.15760462 0.041998399 -20.391949 49.695894 6530.8302 1.9495537e+10 0.16232086 0.044991010 -20.488504 49.606765 6532.9597 1.9114838e+10 0.16757946 0.047485925 -20.585060 49.518984 6535.0892 1.8402941e+10 0.17026047 0.048185612 -20.681616 49.433569 6537.2186 1.7342431e+10 0.17162867 0.048788309 -20.778173 49.348154 6539.3481 1.5669549e+10 0.17205268 0.050065017 -20.874738 49.260242 6541.4776 1.4589685e+10 0.17132587 0.051171650 -20.971307 49.171102 6543.6071 1.3994923e+10 0.16983499 0.051541219 -21.067876 49.081962 6545.7365 1.3352239e+10 0.16789493 0.052462166 -21.160801 48.992832 6547.8660 1.2543353e+10 0.16659983 0.053616689 -21.253643 48.903703 6549.9955 1.1532251e+10 0.16534666 0.054980747 -21.346486 48.814574 6552.1249 1.0828305e+10 0.16374546 0.055555318 -21.439328 48.725444 6554.2544 1.0151453e+10 0.16171447 0.054837719 -21.532171 48.636314 6556.3839 9.9500341e+09 0.15981610 0.053956687 -21.625013 48.547186 6558.5134 9.4704517e+09 0.15794576 0.052801860 -21.717856 48.458058 6560.6428 8.6044718e+09 0.15580508 0.051694716 -21.810698 48.368930 6562.7723 7.6974457e+09 0.15405867 0.050145031 -21.903552 48.276448 6564.9018 6.7986934e+09 0.15263288 0.048362914 -21.996407 48.183593 6567.0312 6.4276696e+09 0.15100214 0.046590771 -22.090801 48.089200 6569.1607 6.1029872e+09 0.14939365 0.044862884 -22.191072 47.988927 6571.2902 5.7836714e+09 0.14831070 0.044424020 -22.291343 47.888655 6573.4197 5.4689213e+09 0.14673495 0.043320717 -22.382545 47.797454 6575.5491 5.1586918e+09 0.14494140 0.041823761 -22.471674 47.708325 6577.6786 4.9467305e+09 0.14268335 0.039154458 -22.560353 47.619197 6579.8081 4.7772608e+09 0.14002034 0.036626266 -22.645769 47.530068 6581.9375 4.5939172e+09 0.13745034 0.035312709 -22.731184 47.440938 6584.0670 4.3521328e+09 0.13488845 0.034479007 -22.818196 47.351804 6586.1965 4.1390080e+09 0.13249940 0.033168756 -22.907337 47.262664 6588.3260 3.9307255e+09 0.13071999 0.033271077 -22.996477 47.173524 6590.4554 3.7365220e+09 0.12851638 0.030214905 -23.082875 47.084392 6592.5849 3.5557374e+09 0.12655668 0.027505413 -23.168290 46.995263 6594.7144 3.3622985e+09 0.12463954 0.025780370 -23.253705 46.906134 6596.8438 3.1893384e+09 0.12241535 0.025723437 -23.339120 46.817004 6598.9733 3.0303142e+09 0.12079665 0.024942473 -23.424535 46.727874 6601.1028 2.8796453e+09 0.12107707 0.027094094 -23.508648 46.638745 6603.2323 2.7535275e+09 0.12014599 0.026525781 -23.590350 46.549617 6605.3617 2.6287779e+09 0.11959605 0.026968500 -23.672052 46.460489 6607.4912 2.5038124e+09 0.11806736 0.024737072 -23.756204 46.371353 6609.6207 2.3841365e+09 0.11516976 0.023890298 -23.841630 46.282212 6611.7501 2.2706679e+09 0.11266942 0.024480091 -23.927057 46.193070 6613.8796 2.1717744e+09 0.11160380 0.023896320 -24.008886 46.100355 6616.0091 2.0849312e+09 0.10987826 0.023283724 -24.090588 46.007513 6618.1385 1.9926662e+09 0.10912876 0.023875418 -24.172289 45.915683 6620.2680 1.8976597e+09 0.10822086 0.024853567 -24.253991 45.826555 6622.3975 1.8047494e+09 0.10668748 0.024652193 -24.335693 45.737427 6624.5270 1.7237594e+09 0.10472494 0.025144390 -24.415240 45.648298 6626.6564 1.6590375e+09 0.10257371 0.025754545 -24.493227 45.559169 6628.7859 1.6001630e+09 0.10075535 0.026022180 -24.571215 45.470039 6630.9154 1.5352250e+09 0.098567332 0.025930557 -24.657854 45.371024 6633.0448 1.4621897e+09 0.096851550 0.026160083 -24.745592 45.270753 6635.1743 1.3846279e+09 0.095190855 0.026425929 -24.828520 45.175979 6637.3038 1.3145874e+09 0.093793999 0.026012625 -24.906518 45.086838 6639.4333 1.2593559e+09 0.093209725 0.025473218 -24.984515 44.997696 6641.5627 1.2146600e+09 0.093698894 0.025150211 -25.062505 44.905588 6643.6922 1.1670641e+09 0.092946876 0.025297133 -25.140493 44.812746 6645.8217 1.1237574e+09 0.091968853 0.025836608 -25.218481 44.720307 6647.9511 1.0775344e+09 0.091010639 0.026938562 -25.296469 44.631179 6650.0806 1.0346605e+09 0.090228563 0.026273692 -25.374457 44.542051 6652.2101 1.0001963e+09 0.089555021 0.027308325 -25.454763 44.448287 6654.3396 9.5692256e+08 0.088679780 0.027891570 -25.538322 44.348014 6656.4690 9.1330351e+08 0.086804204 0.028435082 -25.621757 44.247993 6658.5985 8.6968643e+08 0.085247091 0.031122532 -25.699755 44.158852 6660.7280 8.3009092e+08 0.083801211 0.032287689 -25.777752 44.069710 6662.8574 8.0284577e+08 0.082354892 0.032563195 -25.853295 43.979347 6664.9869 7.7170354e+08 0.081499969 0.028595011 -25.923856 43.886504 6667.1164 7.4274272e+08 0.080838276 0.027146208 -25.994417 43.793661 6669.2459 7.1349157e+08 0.079497083 0.028103191 -26.067344 43.703186 6671.3753 6.8703207e+08 0.079259619 0.026870697 -26.141617 43.614058 6673.5048 6.6586135e+08 0.078365806 0.028214181 -26.215891 43.524931 6675.6343 6.3735339e+08 0.076145462 0.031013217 -26.298937 43.425275 6677.7637 6.0887235e+08 0.074521715 0.031272481 -26.382497 43.325003 6679.8932 5.7915802e+08 0.074356029 0.029529661 -26.458892 43.230873 6682.0227 5.5558042e+08 0.074912028 0.030441874 -26.529452 43.141745 6684.1522 5.3476487e+08 0.074998816 0.032661813 -26.600013 43.052617 6686.2816 5.1224150e+08 0.074228034 0.033924938 -26.678156 42.950322 6688.4111 4.8682785e+08 0.071745063 0.033880085 -26.757549 42.845857 6690.5406 4.6319294e+08 0.070356383 0.033053914 -26.832832 42.748527 6692.6700 4.4404714e+08 0.069503938 0.031987253 -26.903393 42.659398 6694.7995 4.2498604e+08 0.068889895 0.030140471 -26.973953 42.570269 6696.9290 4.0783079e+08 0.068451430 0.030061758 -27.044514 42.481140 6699.0585 3.9300932e+08 0.067172512 0.031536497 -27.115074 42.392012 6701.1879 3.7923431e+08 0.065380434 0.031685183 -27.186005 42.301995 6703.3174 3.6665780e+08 0.065205836 0.034469456 -27.261209 42.201722 6705.4469 3.5269883e+08 0.065264246 0.037463043 -27.336413 42.101450 6707.5763 3.3438578e+08 0.064942054 0.040104267 -27.408429 42.006277 6709.7058 3.2177239e+08 0.063972707 0.040683615 -27.478990 41.913434 6711.8353 3.1061301e+08 0.061891337 0.041642551 -27.549563 41.820569 6713.9647 2.9595994e+08 0.059751274 0.047175916 -27.624735 41.720353 6716.0942 2.8675019e+08 0.057992265 0.048540138 -27.699950 41.620067 6718.2237 2.7397397e+08 0.055832969 0.050160797 -27.775158 41.519790 6720.3532 2.5991046e+08 0.055121261 0.050378846 -27.850362 41.419518 6722.4826 2.5104321e+08 0.054664495 0.050008542 -27.923836 41.321552 6724.6121 2.4013139e+08 0.051251553 0.044815188 -27.990683 41.232423 6726.7416 2.3379590e+08 0.048645143 0.040958056 -28.057529 41.143293 6728.8710 2.2630442e+08 0.048231874 0.040862660 -28.126525 41.046285 6731.0005 2.1547023e+08 0.046537170 0.041751058 -28.197551 40.941836 6733.1300 2.0600249e+08 0.045444476 0.044630059 -28.268072 40.839237 6735.2595 1.9690028e+08 0.045922067 0.049568869 -28.334919 40.750108 6737.3889 1.9275857e+08 0.047486515 0.055374518 -28.401766 40.660980 6739.5184 1.8580846e+08 0.047839037 0.063460979 -28.470401 40.567081 6741.6479 1.7976151e+08 0.046123241 0.067606467 -28.541427 40.466809 6743.7773 1.7371715e+08 0.041695200 0.076291391 -28.612453 40.366537 6745.9068 1.6651373e+08 0.040267246 0.078948105 -28.683489 40.266251 6748.0363 1.6510331e+08 0.036107606 0.067207810 -28.754526 40.165965 6750.1658 1.5899703e+08 0.033414599 0.072287172 -28.825555 40.065688 6752.2952 1.5121165e+08 0.030674641 0.073792840 -28.896581 39.965416 6754.4247 1.4234265e+08 0.029381825 0.075530499 -28.967607 39.864108 6756.5542 1.3194391e+08 0.026794382 0.075592876 -29.038633 39.759658 6758.6836 1.2528788e+08 0.027132369 0.075150976 -29.109659 39.655208 6760.8131 1.2067450e+08 0.027485725 0.077611843 -29.170768 39.563849 6762.9426 1.1789937e+08 0.032523649 0.076530378 -29.230187 39.474721 6765.0721 1.1718804e+08 0.034889034 0.079544347 -29.291482 39.383792 6767.2015 1.1302057e+08 0.034296138 0.081750107 -29.362508 39.283520 6769.3310 1.0755118e+08 0.029518005 0.085257078 -29.433534 39.183247 6771.4605 1.0050404e+08 0.025628002 0.090421982 -29.501350 39.082975 6773.5899 94944860. 0.021738238 0.095586886 -29.568198 38.982703 6775.7194 95331470. 0.017869938 0.10075179 -29.635045 38.882431 6777.8489 94537238. 0.014028832 0.10591669 -29.701893 38.782160 6779.9784 92155170. 0.010206304 0.11108160 -29.768741 38.681889 6782.1078 87389868. 0.0063732024 0.11624650 -29.835589 38.577518 6784.2373 82800033. 0.0025217328 0.12141140 -29.902437 38.473069 6786.3668 79018311. -0.0013468834 0.12657631 -29.969290 38.371065 6788.4962 75600322. -0.0052528881 0.13174121 -30.036148 38.270778 6790.6257 69936616. -0.0092675603 0.13690612 -30.103003 38.170494 6792.7552 63351138. -0.013466756 0.14207102 -30.169851 38.070223 6794.8847 62596164. -0.017786201 0.14723592 -30.236698 37.969953 6797.0141 59651814. -0.023294422 0.15240083 -30.311197 37.858205 6799.1436 56204041. -0.037260075 0.15756573 -30.387596 37.743606 6801.2731 53597425. -0.032801634 0.16273063 -30.454292 37.639133 6803.4025 50898524. -0.017419325 0.16789554 -30.516962 37.538861