# # 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 = 58.945300 km # Date (UTC) = 2013-12-15T09:30:01.759 # Date (julian) = 2456641.89585370 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6512.1652 4.6085140e+10 0.10565043 0.035951600 113.14115 28.902773 6514.3078 4.2387563e+10 0.11613391 0.036597696 113.19347 28.801884 6516.4504 3.8733258e+10 0.12670228 0.037243793 113.24578 28.698430 6518.5930 3.5432133e+10 0.13742084 0.037889890 113.29810 28.593791 6520.7356 3.2505265e+10 0.14832279 0.038535987 113.35039 28.489182 6522.8782 2.9812270e+10 0.15695218 0.039147230 113.39897 28.388294 6525.0208 2.7310410e+10 0.16276147 0.039779835 113.44755 28.287405 6527.1635 2.4929151e+10 0.16648302 0.040835140 113.49612 28.186517 6529.3061 2.2784609e+10 0.16906663 0.042723310 113.54470 28.085629 6531.4487 2.0943849e+10 0.17156055 0.045881715 113.59327 27.984741 6533.5913 1.9326500e+10 0.17340280 0.047770858 113.64185 27.883853 6535.7339 1.7905965e+10 0.17319041 0.047905946 113.69042 27.782965 6537.8765 1.6594239e+10 0.17412688 0.049098446 113.73900 27.682076 6540.0191 1.5392308e+10 0.17446098 0.050863117 113.79124 27.581174 6542.1617 1.4286921e+10 0.17273736 0.051063623 113.84356 27.480272 6544.3043 1.3274606e+10 0.17139837 0.051891195 113.89474 27.379374 6546.4469 1.2334109e+10 0.16988529 0.052832250 113.94332 27.278486 6548.5895 1.1476568e+10 0.16828514 0.053843691 113.99190 27.177597 6550.7321 1.0717966e+10 0.16654753 0.055168673 114.03813 27.076709 6552.8747 1.0036684e+10 0.16493652 0.055366602 114.08297 26.975821 6555.0173 9.4308603e+09 0.16301250 0.054838816 114.12781 26.874933 6557.1599 8.8815527e+09 0.16074242 0.053765869 114.17620 26.774045 6559.3025 8.3921926e+09 0.15811942 0.052353035 114.22478 26.673157 6561.4451 7.9436496e+09 0.15555140 0.051153331 114.27336 26.572264 6563.5877 7.5389516e+09 0.15304313 0.049248494 114.32194 26.471362 6565.7303 7.1397073e+09 0.15094546 0.047489088 114.37052 26.370460 6567.8729 6.7768304e+09 0.14949058 0.045879092 114.41910 26.269566 6570.0155 6.4606166e+09 0.14816410 0.044911068 114.46767 26.168678 6572.1582 6.1354293e+09 0.14651864 0.044139586 114.51625 26.067790 6574.3008 5.7899596e+09 0.14439902 0.042710552 114.56655 25.959141 6576.4434 5.4136202e+09 0.14257351 0.040861074 114.61699 25.849843 6578.5860 5.0440349e+09 0.14036424 0.037724304 114.66439 25.745120 6580.7286 4.7390251e+09 0.13826522 0.035847448 114.70923 25.644232 6582.8712 4.4787706e+09 0.13657132 0.035056723 114.75407 25.543345 6585.0138 4.2502492e+09 0.13465890 0.033959756 114.80216 25.442445 6587.1564 4.0389319e+09 0.13262489 0.033193018 114.85074 25.341542 6589.2990 3.8471714e+09 0.13049525 0.032452807 114.89860 25.240643 6591.4416 3.6804030e+09 0.12776783 0.028703621 114.94344 25.139755 6593.5842 3.5207273e+09 0.12520657 0.026559092 114.98828 25.038866 6595.7268 3.3715373e+09 0.12206302 0.025698943 115.03312 24.939904 6597.8694 3.2220172e+09 0.11959899 0.025448375 115.07796 24.842752 6600.0120 3.0909978e+09 0.11847845 0.025014573 115.12280 24.745600 6602.1546 2.9683325e+09 0.11781612 0.027384688 115.16764 24.645312 6604.2972 2.8470496e+09 0.11670610 0.026247758 115.21248 24.544424 6606.4398 2.7298563e+09 0.11640392 0.026713607 115.25732 24.443533 6608.5824 2.6169520e+09 0.11405615 0.023716972 115.30216 24.342632 6610.7250 2.5135772e+09 0.11134614 0.024695735 115.34701 24.241731 6612.8676 2.4156525e+09 0.11028020 0.023672483 115.39185 24.142657 6615.0102 2.3244619e+09 0.10929752 0.023251847 115.43669 24.045505 6617.1529 2.2341759e+09 0.10812239 0.023489926 115.48153 23.948353 6619.2955 2.1487114e+09 0.10755617 0.024597203 115.52637 23.848170 6621.4381 2.0726357e+09 0.10666599 0.024944249 115.57121 23.747281 6623.5807 1.9965679e+09 0.10497366 0.024706953 115.61680 23.644692 6625.7233 1.9128057e+09 0.10381269 0.026260682 115.66725 23.531190 6627.8659 1.8203859e+09 0.10211594 0.025651284 115.71770 23.417689 6630.0085 1.7242514e+09 0.10091591 0.025928323 115.76390 23.316549 6632.1511 1.6404653e+09 0.099186201 0.026050462 115.80874 23.219397 6634.2937 1.5704787e+09 0.097653602 0.026348266 115.85328 23.121946 6636.4363 1.5102938e+09 0.096016010 0.026380322 115.89439 23.021045 6638.5789 1.4545668e+09 0.094736959 0.025646421 115.93550 22.920144 6640.7215 1.3991688e+09 0.094852150 0.025182375 115.97811 22.820757 6642.8641 1.3455274e+09 0.094258435 0.025187057 116.02295 22.723605 6645.0067 1.2928959e+09 0.093009368 0.025454829 116.06779 22.626452 6647.1493 1.2445912e+09 0.091639878 0.026516396 116.10991 22.526581 6649.2919 1.2038944e+09 0.090493177 0.027231288 116.15102 22.425693 6651.4345 1.1642363e+09 0.090165011 0.026817167 116.19238 22.324371 6653.5771 1.1166161e+09 0.089787638 0.027820324 116.23863 22.215074 6655.7197 1.0634719e+09 0.088388253 0.027907612 116.28487 22.105776 6657.8623 1.0107751e+09 0.087056745 0.029901398 116.33017 22.004640 6660.0049 9.6445425e+08 0.085790090 0.031630492 116.37501 21.907476 6662.1475 9.3109903e+08 0.084327232 0.032961487 116.41984 21.810299 6664.2902 9.0119867e+08 0.083156505 0.031144426 116.46097 21.709435 6666.4328 8.6892471e+08 0.083097326 0.026992924 116.50207 21.608546 6668.5754 8.3702616e+08 0.082050054 0.027979930 116.54482 21.504962 6670.7180 8.0097503e+08 0.081895464 0.026996009 116.59106 21.395665 6672.8606 7.6623390e+08 0.081548633 0.027378403 116.63731 21.286367 6675.0032 7.3774381e+08 0.080012449 0.029804443 116.67871 21.188508 6677.1458 7.1278029e+08 0.077795827 0.032150973 116.71981 21.091356 6679.2884 6.8951189e+08 0.077259067 0.030029461 116.76091 20.994205 6681.4310 6.6619175e+08 0.078083190 0.029988009 116.80202 20.897053 6683.5736 6.4112302e+08 0.078349248 0.032029193 116.84312 20.799901 6685.7162 6.1874209e+08 0.077778692 0.033461323 116.88725 20.693104 6687.8588 5.9570370e+08 0.075388760 0.033863936 116.93350 20.579585 6690.0014 5.7446519e+08 0.073210169 0.033115702 116.97867 20.469517 6692.1440 5.5438108e+08 0.072004433 0.032598093 117.01977 20.372365 6694.2866 5.3520683e+08 0.071071475 0.030859314 117.06087 20.275214 6696.4292 5.1677363e+08 0.070833935 0.029854120 117.10472 20.171569 6698.5718 4.9522608e+08 0.069881476 0.031002718 117.15096 20.062271 6700.7144 4.7532661e+08 0.068243505 0.031197634 117.19641 19.954866 6702.8570 4.5706751e+08 0.067744445 0.033561079 117.23751 19.857714 6704.9996 4.4293401e+08 0.067987326 0.036668431 117.27861 19.760562 6707.1422 4.2839868e+08 0.067648764 0.040166449 117.32016 19.657586 6709.2849 4.1006561e+08 0.067039937 0.040951363 117.36220 19.548289 6711.4275 3.9263532e+08 0.065273567 0.041178562 117.40414 19.440214 6713.5701 3.7311294e+08 0.063321522 0.045748416 117.44525 19.343049 6715.7127 3.6094913e+08 0.061551580 0.048107483 117.48636 19.245884 6717.8553 3.5138893e+08 0.059505691 0.049821366 117.52965 19.143565 6719.9979 3.3890207e+08 0.058322607 0.050421784 117.57589 19.034268 6722.1405 3.2744797e+08 0.058327696 0.050431533 117.62172 18.925529 6724.2831 3.1454699e+08 0.055725600 0.047562716 117.65909 18.828377 6726.4257 3.0570199e+08 0.052487983 0.040955207 117.69645 18.731226 6728.5683 2.9638214e+08 0.051981549 0.040433560 117.73710 18.629582 6730.7109 2.8536321e+08 0.050398890 0.041353633 117.78334 18.520285 6732.8535 2.7163359e+08 0.049207057 0.043897336 117.82957 18.411013 6734.9961 2.6032297e+08 0.049267456 0.049293666 117.86703 18.313725 6737.1387 2.5045399e+08 0.050939586 0.054577440 117.90440 18.216573 6739.2813 2.4068426e+08 0.051477028 0.063170832 117.94323 18.115598 6741.4239 2.3233060e+08 0.049975359 0.066967744 117.98527 18.006301 6743.5665 2.2462554e+08 0.045826107 0.074869220 118.02731 17.897003 6745.7091 2.2392693e+08 0.043866440 0.078865000 118.07328 17.787690 6747.8517 2.2208888e+08 0.039659512 0.067067941 118.11953 17.678377 6749.9943 2.1951507e+08 0.037063740 0.072005681 118.16343 17.569072 6752.1369 2.1004481e+08 0.034390239 0.073976004 118.20547 17.459776 6754.2796 2.0090014e+08 0.033252926 0.075763918 118.24667 17.353315 6756.4222 1.9577626e+08 0.030659284 0.075253178 118.28404 17.259900 6758.5648 1.8998024e+08 0.030786052 0.074899583 118.32140 17.166484 6760.7074 1.8355804e+08 0.031194595 0.077410184 118.36112 17.065090 6762.8500 1.7544469e+08 0.036123912 0.076679775 118.40316 16.955792 6764.9926 1.6957467e+08 0.038579593 0.079530837 118.44520 16.846495 6767.1352 1.6371771e+08 0.038136681 0.081824400 118.48723 16.737197 6769.2778 1.5742853e+08 0.033267754 0.085128009 118.52927 16.627900 6771.4204 1.5315177e+08 0.029249731 0.090324767 118.57131 16.518602 6773.5630 1.5029840e+08 0.025203044 0.095521525 118.61334 16.409305 6775.7056 1.4472483e+08 0.021181569 0.10071828 118.65538 16.301545 6777.8482 1.3886635e+08 0.017146835 0.10591504 118.69742 16.196451 6779.9908 1.3210869e+08 0.013102003 0.11111180 118.73946 16.091352 6782.1334 1.2983238e+08 0.0090126200 0.11630856 118.78149 15.982113 6784.2760 1.2850815e+08 0.0049175124 0.12150532 118.82353 15.872816 6786.4186 1.2129750e+08 0.00083351582 0.12670208 118.86557 15.766066 6788.5612 1.1549683e+08 -0.0032576348 0.13189883 118.90762 15.660956 6790.7038 1.0963377e+08 -0.0073468237 0.13709559 118.94966 15.554885 6792.8464 1.0508566e+08 -0.011425136 0.14229235 118.99170 15.445587 6794.9890 1.0271293e+08 -0.015481174 0.14748911 119.03374 15.336290 6797.1316 98281640. -0.019570756 0.15268587 119.07577 15.226993 6799.2742 95350366. -0.023644549 0.15788263 119.11781 15.117695 6801.4169 90025384. -0.027780920 0.16307938 119.15985 15.010383 6803.5595 87353828. -0.031868226 0.16827614 119.20188 14.905288 6805.7021 84641144. -0.035962015 0.17347290 119.24403 14.798345 6807.8447 82726801. -0.040035301 0.17866966 119.28727 14.673431 6809.9873 80972354. -0.044109342 0.18386642 119.33050 14.548752 6812.1299 76941747. -0.048319820 0.18906318 119.37254 14.443658 6814.2725 74460990. -0.052493207 0.19425993 119.41457 14.338565 6816.4151 70211215. -0.056853815 0.19945669 119.45661 14.233471 6818.5577 66187135. -0.061334685 0.20465345 119.49865 14.128377 6820.7003 62793173. -0.065964070 0.20985021 119.54099 14.018245 6822.8429 59926804. -0.070852309 0.21504697 119.58423 13.893331 6824.9855 58268599. -0.076105451 0.22024373 119.62727 13.771841 6827.1281 57016464. -0.082267949 0.22544048 119.66930 13.666747 6829.2707 55604611. -0.091516470 0.23063724 119.71134 13.561653 6831.4133 54398450. -0.12714834 0.23583400 119.75004 13.456559 6833.5559 51564696. -0.10487906 0.24103076 119.78787 13.351465 6835.6985 48311347. -0.046778264 0.24622752 119.82994 13.238143