# # 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 = 55.131060 km # Date (UTC) = 2013-12-04T07:18:54.518 # Date (julian) = 2456630.80479766 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6498.6721 7.1597864e+10 0.039110283 0.031882800 145.37238 28.878133 6500.8828 6.6412566e+10 0.047079650 0.032549420 145.42515 28.769712 6503.0935 6.1451342e+10 0.055294475 0.033216041 145.48587 28.648269 6505.3042 5.6739349e+10 0.063824071 0.033882662 145.54659 28.526825 6507.5148 5.2474665e+10 0.072781038 0.034549282 145.59731 28.418104 6509.7255 4.9036583e+10 0.082368217 0.035215903 145.64743 28.310141 6511.9362 4.5712890e+10 0.092465870 0.035882524 145.69823 28.197456 6514.1468 4.2126137e+10 0.10293238 0.036549144 145.75028 28.076011 6516.3575 3.8565756e+10 0.11381509 0.037215765 145.80224 27.955343 6518.5682 3.5294134e+10 0.12519392 0.037882386 145.85236 27.851250 6520.7788 3.2514361e+10 0.13719084 0.038549007 145.90247 27.747158 6522.9895 3.0091105e+10 0.14704435 0.039176359 145.95259 27.641326 6525.2002 2.7979849e+10 0.15419622 0.039759372 146.00271 27.533378 6527.4108 2.6010148e+10 0.16006659 0.041014729 146.05283 27.425429 6529.6215 2.3997272e+10 0.16507700 0.043225754 146.10460 27.305914 6531.8322 2.1935523e+10 0.16951376 0.046439885 146.15665 27.184469 6534.0428 1.9956740e+10 0.17202375 0.047956535 146.20764 27.072586 6536.2535 1.8337510e+10 0.17310953 0.048017301 146.25776 26.968480 6538.4642 1.6991707e+10 0.17460807 0.049382698 146.30789 26.864373 6540.6748 1.5687560e+10 0.17415032 0.051172904 146.35986 26.743657 6542.8855 1.4383948e+10 0.17224306 0.051338417 146.41190 26.622213 6545.0962 1.3112806e+10 0.17040580 0.052456428 146.46018 26.512088 6547.3068 1.2057154e+10 0.16822579 0.053404042 146.50645 26.407995 6549.5175 1.1212414e+10 0.16624384 0.054493639 146.55294 26.303676 6551.7282 1.0515223e+10 0.16464378 0.055491344 146.60305 26.195728 6553.9388 9.8813600e+09 0.16240964 0.054863135 146.65317 26.087780 6556.1495 9.2484941e+09 0.16041637 0.053991148 146.70418 25.975575 6558.3602 8.6209400e+09 0.15862334 0.052932410 146.75624 25.858468 6560.5708 8.0285810e+09 0.15617814 0.051759642 146.80737 25.742817 6562.7815 7.5222324e+09 0.15390943 0.050136291 146.85364 25.634853 6564.9922 7.0987014e+09 0.15180899 0.048321954 146.89990 25.526890 6567.2028 6.6890415e+09 0.14981752 0.046445699 146.94944 25.413754 6569.4135 6.2509799e+09 0.14814759 0.044879336 147.00148 25.296648 6571.6242 5.7965880e+09 0.14686083 0.044332807 147.05203 25.182926 6573.8348 5.3829918e+09 0.14483130 0.042987559 147.09829 25.078833 6576.0455 5.0480497e+09 0.14275057 0.041319038 147.14456 24.974740 6578.2562 4.7675376e+09 0.14036452 0.038245119 147.18826 24.868078 6580.4668 4.5384008e+09 0.13768920 0.036089344 147.23067 24.760130 6582.6775 4.3227517e+09 0.13529800 0.035109432 147.27377 24.651518 6584.8882 4.0983674e+09 0.13282308 0.034031700 147.32582 24.534410 6587.0988 3.8734597e+09 0.13038095 0.033180264 147.37786 24.417303 6589.3095 3.6547423e+09 0.12817051 0.032431983 147.42548 24.310166 6591.5202 3.4725841e+09 0.12575699 0.028614977 147.47175 24.206059 6593.7308 3.3176108e+09 0.12374390 0.026422779 147.51827 24.098947 6595.9415 3.1543919e+09 0.12132450 0.025721206 147.56598 23.977503 6598.1522 2.9750483e+09 0.11986307 0.025334522 147.61369 23.856059 6600.3628 2.8052670e+09 0.11967567 0.025735768 147.65680 23.749671 6602.5735 2.6599724e+09 0.11923488 0.027027242 147.69920 23.645578 6604.7842 2.5427690e+09 0.11846393 0.026536881 147.74267 23.541484 6606.9948 2.4440922e+09 0.11747282 0.025716301 147.78894 23.437391 6609.2055 2.3431594e+09 0.11448026 0.023766971 147.83521 23.333298 6611.4162 2.2383722e+09 0.11183224 0.024693072 147.88245 23.220354 6613.6268 2.1266248e+09 0.11095673 0.023803573 147.93017 23.103248 6615.8375 2.0132749e+09 0.10957609 0.023277299 147.97589 22.991010 6618.0482 1.9152749e+09 0.10892601 0.023807159 148.01831 22.886903 6620.2588 1.8291257e+09 0.10813988 0.024850603 148.06072 22.782796 6622.4695 1.7482834e+09 0.10667488 0.024633030 148.10727 22.668535 6624.6802 1.6611035e+09 0.10498202 0.025226393 148.15497 22.551428 6626.8908 1.5722289e+09 0.10296350 0.025455913 148.20016 22.440508 6629.1015 1.4983058e+09 0.10160501 0.026090755 148.24256 22.336415 6631.3122 1.4389727e+09 0.099568503 0.025962475 148.28497 22.232322 6633.5228 1.3774892e+09 0.097821278 0.026243532 148.33206 22.116756 6635.7335 1.3138081e+09 0.096005930 0.026509785 148.37977 21.999650 6637.9442 1.2502619e+09 0.094770229 0.025698993 148.42442 21.890040 6640.1548 1.1946470e+09 0.094666633 0.025251709 148.46683 21.785946 6642.3655 1.1512856e+09 0.094724683 0.025166653 148.50924 21.681848 6644.5762 1.1005999e+09 0.093898537 0.025405876 148.55686 21.564977 6646.7868 1.0462568e+09 0.092982008 0.026327433 148.60457 21.447870 6648.9975 9.9827344e+08 0.091879455 0.027632007 148.64869 21.339559 6651.2082 9.5551872e+08 0.091651647 0.026643687 148.69111 21.235452 6653.4188 9.1953162e+08 0.091192939 0.027739498 148.73396 21.130264 6655.6295 8.8304898e+08 0.089639251 0.027870323 148.78167 21.013158 6657.8402 8.4349636e+08 0.088083039 0.029875666 148.82938 20.896052 6660.0508 8.0746040e+08 0.086632625 0.031672194 148.86997 20.789064 6662.2615 7.7257822e+08 0.085118834 0.032897560 148.90853 20.684970 6664.4722 7.4224866e+08 0.083994377 0.030478485 148.94877 20.578485 6666.6828 7.0960730e+08 0.083782132 0.027041652 148.99648 20.461378 6668.8935 6.7812974e+08 0.082504083 0.028261450 149.04419 20.344272 6671.1042 6.4868611e+08 0.082468912 0.026866833 149.08385 20.238592 6673.3148 6.2547189e+08 0.081802288 0.027930060 149.12240 20.134499 6675.5255 6.0707519e+08 0.079642220 0.030804865 149.16356 20.027935 6677.7362 5.8534672e+08 0.077954924 0.031311693 149.21128 19.915148 6679.9468 5.6139532e+08 0.077870625 0.029485358 149.25899 19.802362 6682.1575 5.3322485e+08 0.078479281 0.030544872 149.30246 19.685346 6684.3682 5.0790441e+08 0.078458929 0.032672774 149.34584 19.568240 6686.5788 4.8744257e+08 0.077198948 0.034097854 149.38856 19.459898 6688.7895 4.6843953e+08 0.074332467 0.033967432 149.43097 19.355804 6691.0002 4.5342494e+08 0.073224849 0.033001225 149.47346 19.251019 6693.2108 4.3805583e+08 0.072407760 0.031531763 149.51683 19.138250 6695.4215 4.2034911e+08 0.072005781 0.029782051 149.56021 19.025480 6697.6322 4.0130051e+08 0.071416192 0.030171266 149.60358 18.909353 6699.8428 3.7834083e+08 0.070061406 0.030812746 149.64695 18.792247 6702.0535 3.6166154e+08 0.068407090 0.032919444 149.68806 18.681236 6704.2642 3.4770293e+08 0.068809198 0.036307269 149.72662 18.577143 6706.4748 3.3684528e+08 0.068648467 0.039272801 149.76517 18.473050 6708.6855 3.2511662e+08 0.068113754 0.040790055 149.80794 18.361368 6710.8962 3.1223124e+08 0.066470189 0.040671907 149.85131 18.248599 6713.1068 3.0041422e+08 0.064373519 0.044072991 149.89468 18.133351 6715.3175 2.8805191e+08 0.062321529 0.047703311 149.93806 18.016227 6717.5282 2.7427893e+08 0.060199879 0.049841599 149.98144 17.900251 6719.7388 2.6062955e+08 0.058601285 0.050667900 150.02482 17.787482 6721.9495 2.5201616e+08 0.058630266 0.050589986 150.06819 17.674712 6724.1602 2.4280811e+08 0.056101085 0.048589224 150.11156 17.557787 6726.3708 2.3289739e+08 0.052435462 0.040954712 150.15493 17.440680 6728.5815 2.2407018e+08 0.051731187 0.040452266 150.19516 17.334582 6730.7922 2.1652494e+08 0.049873665 0.041465051 150.23372 17.234344 6733.0028 2.1101087e+08 0.048399864 0.043939654 150.27255 17.133370 6735.2135 2.0371906e+08 0.048484186 0.049520072 150.31592 17.020600 6737.4242 1.9378541e+08 0.049989328 0.055486739 150.35929 16.907829 6739.6348 1.8338084e+08 0.050185858 0.063603459 150.40267 16.791794 6741.8455 1.7732325e+08 0.048118892 0.068170090 150.44604 16.674688 6744.0562 1.7171377e+08 0.043203421 0.077836851 150.48747 16.559523 6746.2668 1.6688575e+08 0.041009252 0.075885110 150.52651 16.446753 6748.4775 1.6327360e+08 0.037873621 0.069529013 150.56616 16.333981 6750.6882 1.5592588e+08 0.034929186 0.073179194 150.60954 16.221195 6752.8988 1.5026150e+08 0.031983071 0.073094365 150.65292 16.108409 6755.1095 1.4202411e+08 0.029972114 0.074557339 150.69629 15.992007 6757.3202 1.3713276e+08 0.027522068 0.075768452 150.73966 15.874900 6759.5308 1.3309506e+08 0.028257511 0.075948052 150.78073 15.760097 6761.7415 1.2881469e+08 0.030838642 0.078029487 150.81977 15.647327 6763.9522 1.2504128e+08 0.034379316 0.079337593 150.85979 15.534558 6766.1628 1.2135994e+08 0.035736142 0.080082068 150.90316 15.421788 6768.3735 1.1947110e+08 0.031923050 0.082199949 150.94653 15.309019 6770.5842 1.1321327e+08 0.027242719 0.088296550 150.98591 15.196249 6772.7948 1.1030857e+08 0.023030195 0.093658389 151.02494 15.083480 6775.0055 1.0495003e+08 0.018789207 0.099020228 151.06664 14.970711 6777.2162 1.0303159e+08 0.014606506 0.10438207 151.11002 14.857941 6779.4268 1.0290919e+08 0.010470617 0.10974391 151.15378 14.740195 6781.6375 96283936. 0.0061889371 0.11510574 151.19839 14.611313 6783.8482 94410034. 0.0020345129 0.12046758 151.24138 14.485863 6786.0588 89863710. -0.0021903545 0.12582942 151.28042 14.368756 6788.2695 85454088. -0.0064162243 0.13119126 151.31946 14.251651 6790.4802 84282483. -0.010524239 0.13655310 151.36277 14.138819 6792.6908 77407403. -0.014948994 0.14191494 151.40613 14.026049 6794.9015 74206157. -0.019277964 0.14727678 151.44655 13.913280 6797.1122 68416560. -0.023913668 0.15263862 151.48559 13.800510 6799.3228 60994140. -0.028991600 0.15800045 151.52671 13.683560 6801.5335 59443908. -0.033852565 0.16336229 151.57133 13.559635 6803.7442 57403914. -0.039326804 0.16872413 151.61396 13.439697 6805.9548 58267967. -0.045295432 0.17408597 151.65299 13.326927 6808.1655 56574193. -0.054927769 0.17944781 151.69225 13.214157 6810.3762 52718128. -0.093888075 0.18480965 151.73563 13.101371 6812.5868 49416206. -0.070868215 0.19017149 151.77900 12.988584 6814.7975 47712691. -0.0087311188 0.19553333 151.82330 12.863781