# # 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 = 49.024610 km # Date (UTC) = 2015-11-30T09:51:36.838 # Date (julian) = 2457356.91084303 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6510.4158 5.3559231e+10 0.097206817 0.035424052 108.67772 25.918656 6512.5468 4.9605790e+10 0.10770042 0.036066672 108.72239 25.813918 6514.6779 4.5751419e+10 0.11831951 0.036709292 108.76838 25.696847 6516.8090 4.2025303e+10 0.12906673 0.037351912 108.81438 25.579776 6518.9401 3.8553436e+10 0.13997745 0.037994532 108.85945 25.471294 6521.0711 3.5631202e+10 0.15113819 0.038637152 108.90404 25.367232 6523.2022 3.2877679e+10 0.15905993 0.039229228 108.94864 25.263170 6525.3333 3.0325135e+10 0.16449696 0.039744179 108.99864 25.146494 6527.4644 2.7776767e+10 0.16881485 0.041053595 109.04882 25.029421 6529.5954 2.5285919e+10 0.17202220 0.043184246 109.09899 24.912350 6531.7265 2.2953616e+10 0.17460959 0.046286110 109.14917 24.795279 6533.8576 2.0783210e+10 0.17580836 0.047884031 109.19761 24.680627 6535.9887 1.8946335e+10 0.17522603 0.047795424 109.23850 24.576551 6538.1197 1.7418987e+10 0.17653046 0.049214981 109.27939 24.472475 6540.2508 1.6095139e+10 0.17652703 0.050972587 109.32488 24.361956 6542.3819 1.4785461e+10 0.17477356 0.051147219 109.37505 24.244884 6544.5130 1.3549354e+10 0.17319558 0.052060463 109.42425 24.129166 6546.6440 1.2468295e+10 0.17103267 0.052994456 109.46514 24.025105 6548.7751 1.1586188e+10 0.16857372 0.053899118 109.50602 23.921043 6550.9062 1.0802227e+10 0.16632413 0.055212258 109.54901 23.811603 6553.0373 1.0054122e+10 0.16458340 0.055316342 109.59500 23.694531 6555.1683 9.3100983e+09 0.16251585 0.054711931 109.64100 23.577459 6557.2994 8.6088032e+09 0.16019378 0.053678442 109.68699 23.460387 6559.4305 7.9706739e+09 0.15755619 0.052338593 109.73298 23.343315 6561.5616 7.4004896e+09 0.15485665 0.051095961 109.77810 23.236773 6563.6926 6.9406380e+09 0.15209682 0.049127159 109.82271 23.136415 6565.8237 6.5366628e+09 0.14976960 0.047383074 109.86731 23.036056 6567.9548 6.1514474e+09 0.14815170 0.045809901 109.91322 22.919993 6570.0859 5.7431654e+09 0.14669080 0.044881947 109.95921 22.802921 6572.2169 5.3528587e+09 0.14493752 0.044105928 110.00240 22.692978 6574.3480 5.0486477e+09 0.14252941 0.042687862 110.04328 22.588916 6576.4791 4.8009795e+09 0.14012300 0.040819968 110.08416 22.484853 6578.6102 4.5692696e+09 0.13725409 0.037686116 110.12942 22.373223 6580.7412 4.3223693e+09 0.13461481 0.035835754 110.17542 22.260334 6582.8723 4.0624988e+09 0.13248296 0.035056417 110.21946 22.145497 6585.0034 3.8130508e+09 0.13019928 0.033968075 110.26128 22.028425 6587.1344 3.5823146e+09 0.12775793 0.033188158 110.30302 21.912314 6589.2655 3.3841185e+09 0.12520321 0.032519200 110.34390 21.808252 6591.3966 3.2269708e+09 0.12199325 0.028754393 110.38479 21.704189 6593.5277 3.0898971e+09 0.11886345 0.026611643 110.42763 21.596738 6595.6587 2.9411371e+09 0.11548122 0.025691885 110.47362 21.483832 6597.7898 2.7783208e+09 0.11305879 0.025473489 110.51961 21.370914 6599.9209 2.6101305e+09 0.11219462 0.024985118 110.56147 21.253887 6602.0520 2.4624037e+09 0.11194651 0.027472280 110.60328 21.136815 6604.1830 2.3319981e+09 0.11078342 0.026179965 110.64454 21.029781 6606.3141 2.2174516e+09 0.11046936 0.026939492 110.68542 20.929435 6608.4452 2.1208530e+09 0.10807619 0.023720600 110.72630 20.829090 6610.5763 2.0214839e+09 0.10526963 0.024553596 110.77183 20.713533 6612.7073 1.9222143e+09 0.10393146 0.023792248 110.81782 20.596462 6614.8384 1.8272203e+09 0.10294633 0.023362851 110.85924 20.488050 6616.9695 1.7443762e+09 0.10163165 0.023434462 110.89641 20.387704 6619.1006 1.6767439e+09 0.10091463 0.024550181 110.93357 20.287359 6621.2316 1.6074635e+09 0.10004768 0.025012666 110.97458 20.173180 6623.3627 1.5284671e+09 0.098483557 0.024626209 111.01639 20.056108 6625.4938 1.4521339e+09 0.097206048 0.025986854 111.06003 19.940849 6627.6249 1.3748015e+09 0.095362815 0.025558189 111.10602 19.827942 6629.7559 1.3043789e+09 0.094112736 0.025972427 111.15164 19.715587 6631.8870 1.2470209e+09 0.092245453 0.026020869 111.18880 19.615242 6634.0181 1.1944535e+09 0.090604011 0.026328163 111.22596 19.514897 6636.1492 1.1542910e+09 0.088882630 0.026491823 111.26477 19.408643 6638.2802 1.1056233e+09 0.087647850 0.025659433 111.30658 19.291571 6640.4113 1.0550931e+09 0.087522452 0.025220326 111.34839 19.174499 6642.5424 1.0025956e+09 0.087166935 0.025173892 111.39020 19.061447 6644.6735 9.5171683e+08 0.086071643 0.025416394 111.43201 18.948556 6646.8045 9.0633019e+08 0.084976625 0.026336608 111.47118 18.842815 6648.9356 8.6798456e+08 0.083900557 0.027590593 111.50835 18.742469 6651.0667 8.3472470e+08 0.083705210 0.026535280 111.54551 18.642124 6653.1978 8.0197825e+08 0.083433966 0.027626637 111.58676 18.530749 6655.3288 7.6439994e+08 0.082216690 0.027746097 111.62857 18.417860 6657.4599 7.2364735e+08 0.080676175 0.029434607 111.67038 18.302931 6659.5910 6.8768856e+08 0.079361700 0.031711316 111.71219 18.185859 6661.7221 6.5267081e+08 0.078077240 0.032902717 111.75400 18.069186 6663.8531 6.1908566e+08 0.076853641 0.032246785 111.79582 17.956278 6665.9842 5.8737696e+08 0.076969836 0.026934447 111.83764 17.843370 6668.1153 5.5987574e+08 0.076262494 0.027572805 111.87618 17.739312 6670.2464 5.3719186e+08 0.075774707 0.027214492 111.91334 17.638967 6672.3774 5.2165354e+08 0.075386260 0.027098375 111.95057 17.538450 6674.5085 4.9855362e+08 0.074249963 0.029383763 111.99239 17.425560 6676.6396 4.7675822e+08 0.071997958 0.032125941 112.03420 17.312669 6678.7707 4.5227047e+08 0.071215467 0.030421155 112.07341 17.199779 6680.9017 4.2948392e+08 0.072077435 0.029636141 112.11104 17.086888 6683.0328 4.1511143e+08 0.072582976 0.031236682 112.14963 16.973997 6685.1639 3.9441969e+08 0.072320100 0.032877953 112.19144 16.861106 6687.2950 3.7941419e+08 0.070366438 0.034178391 112.23325 16.748215 6689.4260 3.6281985e+08 0.067829631 0.033632514 112.27506 16.635324 6691.5571 3.4779229e+08 0.066854593 0.032869819 112.31687 16.522433 6693.6882 3.3353121e+08 0.065988836 0.031367995 112.35682 16.409543 6695.8193 3.1412621e+08 0.065950422 0.029708983 112.39445 16.296653 6697.9503 3.0176474e+08 0.065355566 0.030211533 112.43205 16.184456 6700.0814 2.8761157e+08 0.063957173 0.030728111 112.46922 16.084097 6702.2125 2.7766486e+08 0.062604877 0.033046409 112.50639 15.983738 6704.3436 2.7027684e+08 0.063021171 0.036346265 112.54373 15.878807 6706.4746 2.5838843e+08 0.063018031 0.039272489 112.58136 15.765916 6708.6057 2.4760282e+08 0.062675011 0.040703187 112.61899 15.653025 6710.7368 2.3395315e+08 0.061335875 0.040640714 112.66069 15.544204 6712.8679 2.2161716e+08 0.059514787 0.043441306 112.70250 15.435494 6714.9989 2.1382240e+08 0.057639632 0.047378509 112.74188 15.324353 6717.1300 2.0832923e+08 0.055654064 0.049866226 112.77951 15.211463 6719.2611 2.0174114e+08 0.053666726 0.051121778 112.81793 15.098572 6721.3922 1.9389630e+08 0.054114119 0.050422062 112.85975 14.985682 6723.5232 1.8414111e+08 0.052730212 0.049660767 112.90156 14.872792 6725.6543 1.7204908e+08 0.048850506 0.041167297 112.94004 14.759901 6727.7854 1.6549160e+08 0.047937777 0.039914014 112.97766 14.647011 6729.9165 1.5964399e+08 0.046816696 0.040434576 113.01529 14.535819 6732.0475 1.5388813e+08 0.045164362 0.043748962 113.05292 14.427109 6734.1786 1.5049077e+08 0.044312479 0.049342852 113.09055 14.318338 6736.3097 1.4544888e+08 0.046012564 0.051525828 113.12818 14.205448 6738.4408 1.4238337e+08 0.047018395 0.059747735 113.16581 14.092557 6740.5718 1.3649169e+08 0.046369885 0.065027261 113.20345 13.979656 6742.7029 1.2881004e+08 0.043387846 0.070323549 113.24108 13.866749 6744.8340 1.2462224e+08 0.039736546 0.078438486 113.28107 13.751216 6746.9651 1.1835667e+08 0.035173762 0.067767259 113.32886 13.626974 6749.0961 1.1273738e+08 0.034975185 0.072251609 113.37523 13.504310 6751.2272 1.0288268e+08 0.031867840 0.073807741 113.41286 13.391420 6753.3583 98503730. 0.029411259 0.074136798 113.45049 13.278529 6755.4894 94724184. 0.027268324 0.074390788 113.48812 13.168763 6757.6204 93848121. 0.025633898 0.074857171 113.52575 13.060053 6759.7515 93551864. 0.026330221 0.076001309 113.56338 12.949856 6761.8826 89608407. 0.029474212 0.078041144 113.60101 12.836966 6764.0137 90617254. 0.032693927 0.079483940 113.63864 12.724076 6766.1447 82608514. 0.034086096 0.080041162 113.67627 12.615216 6768.2758 78219143. 0.030577907 0.081848489 113.71390 12.506506 6770.4069 73079397. 0.026047225 0.087866599 113.75461 12.386175 6772.5380 65065388. 0.021954202 0.093035392 113.79762 12.257154 6774.6690 60032577. 0.017858960 0.098204186 113.83604 12.137873 6776.8001 58379708. 0.013780142 0.10337298 113.86949 12.029164 6778.9312 57642549. 0.0096659519 0.10854177 113.90331 11.920455 6781.0623 58737110. 0.0054916684 0.11371057 113.94093 11.811745 6783.1933 58974809. 0.0010207538 0.11887936 113.97856 11.703035 6785.3244 56037683. -0.0049193812 0.12404815 114.01994 11.580187 6787.4555 55076674. -0.020420384 0.12921695 114.06295 11.451166 6789.5866 52575050. -0.014455366 0.13438574 114.10271 11.334402 6791.7176 48230788. 0.0044785753 0.13955454 114.14034 11.225693