# # 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 = 72.887549 km # Date (UTC) = 2014-12-06T10:51:07.890 # Date (julian) = 2456997.95217465 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6494.1251 1.0491203e+11 0.033420815 0.030511644 93.272630 27.509718 6496.7923 8.9163794e+10 0.042559047 0.031315951 93.333103 27.379473 6499.4596 7.7270299e+10 0.051179293 0.032120257 93.396521 27.242881 6502.1269 6.7827289e+10 0.059460805 0.032924563 93.464550 27.096355 6504.7941 5.9707674e+10 0.067612384 0.033728869 93.528959 26.959853 6507.4614 5.3335258e+10 0.075872726 0.034533175 93.589429 26.834260 6510.1287 4.8032842e+10 0.084479711 0.035337481 93.648368 26.707136 6512.7959 4.3899429e+10 0.093831144 0.036141787 93.704188 26.576891 6515.4632 4.0207255e+10 0.10405415 0.036946093 93.760844 26.446644 6518.1305 3.6949464e+10 0.11540763 0.037750400 93.821321 26.316382 6520.7977 3.3849517e+10 0.12790265 0.038554706 93.881868 26.185792 6523.4650 3.0619636e+10 0.13717037 0.039294357 93.944666 26.044498 6526.1322 2.7586217e+10 0.14290691 0.039806729 94.006636 25.904517 6528.7995 2.4806590e+10 0.14933410 0.042076733 94.062456 25.774272 6531.4668 2.2471434e+10 0.15542733 0.045908068 94.118276 25.644027 6534.1340 2.0464915e+10 0.16072605 0.047982051 94.178602 25.518291 6536.8013 1.8667921e+10 0.16488045 0.048507441 94.239071 25.392699 6539.4686 1.7104396e+10 0.16854234 0.050210807 94.295738 25.263281 6542.1358 1.5698759e+10 0.16967640 0.051053804 94.351566 25.133019 6544.8031 1.4313323e+10 0.16944820 0.052295826 94.412060 24.995368 6547.4703 1.2961753e+10 0.16757084 0.053466229 94.474855 24.854073 6550.1376 1.1716033e+10 0.16548961 0.055019816 94.532357 24.721165 6552.8049 1.0651994e+10 0.16318087 0.055384180 94.588177 24.590921 6555.4721 9.7887782e+09 0.16063943 0.054456656 94.641164 24.463509 6558.1394 9.0405188e+09 0.15820182 0.053120517 94.692332 24.337916 6560.8067 8.3258309e+09 0.15505596 0.051546997 94.748839 24.205113 6563.4739 7.6329449e+09 0.15241736 0.049380142 94.811634 24.063818 6566.1412 6.9929457e+09 0.15005786 0.047103013 94.870609 23.928573 6568.8085 6.4360997e+09 0.14852375 0.045028500 94.926436 23.798311 6571.4757 5.9825240e+09 0.14731370 0.044373347 94.982261 23.669911 6574.1430 5.5991013e+09 0.14519081 0.042786332 95.038081 23.544319 6576.8102 5.2383582e+09 0.14319295 0.040438786 95.092743 23.418727 6579.4775 4.9280366e+09 0.14040199 0.036807991 95.143911 23.293134 6582.1448 4.6296603e+09 0.13808280 0.035254399 95.196232 23.165983 6584.8120 4.3263991e+09 0.13583785 0.034073166 95.259027 23.024688 6587.4793 4.0256907e+09 0.13361661 0.033264563 95.319632 22.885475 6590.1466 3.7412105e+09 0.13110422 0.030789444 95.370800 22.755230 6592.8138 3.5127185e+09 0.12788063 0.027283056 95.421968 22.625163 6595.4811 3.3254607e+09 0.12418112 0.025673461 95.473143 22.499555 6598.1483 3.1548622e+09 0.12073150 0.025336338 95.524317 22.373946 6600.8156 2.9688348e+09 0.11928999 0.026666623 95.581173 22.234393 6603.4829 2.7791927e+09 0.11756623 0.026377413 95.638737 22.093098 6606.1501 2.6054519e+09 0.11684150 0.027234169 95.694596 21.967161 6608.8174 2.4532862e+09 0.11405994 0.023710759 95.750416 21.841568 6611.4847 2.3304341e+09 0.11121114 0.024649383 95.802383 21.715975 6614.1519 2.2198914e+09 0.11034307 0.023835820 95.853551 21.590381 6616.8192 2.0984968e+09 0.10915021 0.023410871 95.909059 21.454136 6619.4865 1.9780869e+09 0.10881314 0.024643288 95.966623 21.312843 6622.1537 1.8645574e+09 0.10788381 0.024717078 96.019280 21.183587 6624.8210 1.7580599e+09 0.10634438 0.025301776 96.070451 21.057977 6627.4882 1.6752885e+09 0.10433847 0.025505411 96.118747 20.932378 6630.1555 1.5995383e+09 0.10290128 0.025928685 96.165266 20.806785 6632.8228 1.5193274e+09 0.10107821 0.026131002 96.216956 20.673840 6635.4900 1.4429533e+09 0.099259858 0.026473276 96.274521 20.532546 6638.1573 1.3580842e+09 0.097899356 0.025664789 96.328521 20.400002 6640.8246 1.2861020e+09 0.097967833 0.025169766 96.379689 20.274410 6643.4918 1.2274574e+09 0.097115043 0.025266878 96.430858 20.148810 6646.1591 1.1798144e+09 0.095490589 0.026002495 96.482029 20.023201 6648.8263 1.1327624e+09 0.093721145 0.027517445 96.533500 19.894894 6651.4936 1.0791253e+09 0.092889703 0.026862448 96.585834 19.758833 6654.1609 1.0288636e+09 0.091693082 0.027967691 96.637763 19.626406 6656.8281 9.8033345e+08 0.089072973 0.028750270 96.688931 19.500813 6659.4954 9.4137546e+08 0.086832893 0.031731257 96.740328 19.372122 6662.1627 9.0006873e+08 0.084880665 0.032953006 96.792659 19.230827 6664.8299 8.5676536e+08 0.083852873 0.029169415 96.844657 19.094029 6667.4972 8.1445430e+08 0.083476926 0.027286085 96.895824 18.968437 6670.1645 7.7880960e+08 0.082872113 0.027252443 96.947151 18.841415 6672.8317 7.4264236e+08 0.082641475 0.027361678 96.999481 18.705354 6675.4990 7.0818384e+08 0.080658450 0.030754089 97.050500 18.571651 6678.1662 6.7603723e+08 0.079103161 0.030825422 97.097022 18.446042 6680.8335 6.4094649e+08 0.079754267 0.029621406 97.144384 18.319237 6683.5008 6.1058640e+08 0.080384843 0.031922466 97.201949 18.177943 6686.1680 5.7953820e+08 0.079688357 0.033858849 97.257687 18.040012 6688.8353 5.5488300e+08 0.076251242 0.033978005 97.304203 17.919070 6691.5026 5.3604051e+08 0.074821136 0.032882692 97.350808 17.797814 6694.1698 5.1469142e+08 0.073572991 0.031023010 97.403138 17.656520 6696.8371 4.8650686e+08 0.073185085 0.030023578 97.455469 17.515774 6699.5043 4.5419269e+08 0.071632810 0.031125062 97.507803 17.379713 6702.1716 4.2447064e+08 0.069760285 0.033013764 97.559011 17.245679 6704.8389 3.9944013e+08 0.070175136 0.036589486 97.605526 17.120086 6707.5061 3.7888067e+08 0.069732091 0.040114322 97.652296 16.994033 6710.1734 3.6231598e+08 0.068337905 0.040530436 97.704635 16.857951 6712.8407 3.4806314e+08 0.065685626 0.043390794 97.756972 16.721174 6715.5079 3.3435126e+08 0.063092503 0.047898083 97.809303 16.579880 6718.1752 3.2100869e+08 0.060366985 0.050085262 97.860340 16.443111 6720.8425 3.0970853e+08 0.059650030 0.050322153 97.906855 16.322169 6723.5097 3.0237806e+08 0.058108670 0.049653223 97.953792 16.200132 6726.1770 2.9545202e+08 0.053707470 0.040952964 98.006127 16.064071 6728.8442 2.8888001e+08 0.053019857 0.040824671 98.057614 15.927165 6731.5115 2.7922466e+08 0.050986421 0.042768020 98.104711 15.785871 6734.1788 2.7036227e+08 0.049880576 0.049342843 98.153119 15.645889 6736.8460 2.6378127e+08 0.052027039 0.053553488 98.205450 15.509827 6739.5133 2.5060863e+08 0.052820300 0.063454730 98.257780 15.373765 6742.1806 2.3903684e+08 0.050408194 0.069050720 98.310111 15.237704 6744.8478 2.2665778e+08 0.045849257 0.078449182 98.357955 15.108121 6747.5151 2.1721480e+08 0.041384458 0.067183836 98.399827 14.987164 6750.1824 2.1291923e+08 0.038837244 0.072315502 98.444620 14.861987 6752.8496 2.0520444e+08 0.036019831 0.073151315 98.496951 14.725926 6755.5169 1.9847478e+08 0.033667761 0.074378728 98.549281 14.587937 6758.1841 1.9243270e+08 0.032523556 0.074094711 98.601612 14.446641 6760.8514 1.8864980e+08 0.033058229 0.077684857 98.651549 14.307741 6763.5187 1.8199386e+08 0.038941867 0.078017373 98.698649 14.171680 6766.1859 1.7632139e+08 0.041070181 0.080134322 98.745747 14.035619 6768.8532 1.6998536e+08 0.036288563 0.083926012 98.792843 13.899559 6771.5205 1.6012589e+08 0.031452163 0.090567474 98.843270 13.763498 6774.1877 1.5775170e+08 0.026539914 0.097036760 98.895604 13.627437 6776.8550 1.5015937e+08 0.021754302 0.10350605 98.944142 13.491375 6779.5222 1.4457248e+08 0.016955288 0.10997533 98.991238 13.355313 6782.1895 1.3999205e+08 0.012178319 0.11644462 99.048681 13.203428 6784.8568 1.3182556e+08 0.0075285453 0.12291390 99.106684 13.050686 6787.5240 1.3103385e+08 0.0027174896 0.12938319 99.153785 12.914625 6790.1913 1.2903953e+08 -0.0020718342 0.13585247 99.200885 12.778560 6792.8586 1.2439342e+08 -0.0068036469 0.14232176 99.247989 12.642478 6795.5258 1.1833459e+08 -0.011508591 0.14879105 99.295091 12.508080 6798.1931 1.1127999e+08 -0.016193456 0.15526033 99.342191 12.377252 6800.8604 1.0665837e+08 -0.020944518 0.16172962 99.392045 12.236320 6803.5276 1.0458458e+08 -0.025769655 0.16819890 99.445870 12.080818 6806.1949 1.0297412e+08 -0.030615922 0.17466819 99.498593 11.939653 6808.8621 1.0062662e+08 -0.035451769 0.18113748 99.550924 11.803591 6811.5294 98087035. -0.040292458 0.18760676 99.598931 11.667531 6814.1967 91989736. -0.045070019 0.19407605 99.646031 11.531470 6816.8639 86773969. -0.049879846 0.20054533 99.699290 11.377607 6819.5312 83909305. -0.054747146 0.20701462 99.751476 11.228118 6822.1985 81708334. -0.059636047 0.21348391 99.798576 11.097290 6824.8657 80202366. -0.064540087 0.21995319 99.847914 10.958251 6827.5330 77224556. -0.069438548 0.22642248 99.901740 10.802748 6830.2002 75589800. -0.074358141 0.23289176 99.951121 10.660092 6832.8675 73568111. -0.079282799 0.23936105 99.998222 10.524031 6835.5348 72260159. -0.084212756 0.24583033 100.05036 10.377877 6838.2020 69770814. -0.089142370 0.25229962 100.10372 10.227890 6840.8693 65927604. -0.094083636 0.25876891 100.15157 10.072388 6843.5366 61787840. -0.099039255 0.26523819 100.19912 9.9269010 6846.2038 59769076. -0.10396285 0.27170748 100.24621 9.7960731 6848.8711 60563137. -0.10880936 0.27817676 100.29664 9.6530324 6851.5384 63976142. -0.11355676 0.28464605 100.35047 9.4975302 6854.2056 64281174. -0.11838979 0.29111534 100.40430 9.3469504 6856.8729 60092137. -0.12340504 0.29758462 100.45812 9.1965268 6859.5401 56170242. -0.12846104 0.30405391 100.51195 9.0410250 6862.2074 53902323. -0.13346713 0.31052319 100.56292 8.8883878 6864.8747 53365113. -0.13837389 0.31699248 100.61077 8.7388671 6867.5419 54546132. -0.14315894 0.32346177 100.66344 8.5845200 6870.2092 55186830. -0.14798920 0.32993105 100.71726 8.4298253 6872.8765 54942096. -0.15290543 0.33640034 100.77109 8.2803045 6875.5437 54852252. -0.15783918 0.34286962 100.82215 8.1307832 6878.2110 53214523. -0.16297957 0.34933891 100.86999 7.9812614 6880.8782 51349646. -0.16825792 0.35580819 100.92257 7.8270101 6883.5455 47988520. -0.17393744 0.36227748 100.97640 7.6722197 6886.2128 46120131. -0.17973695 0.36874677 101.03023 7.5226979 6888.8800 44818151. -0.18594643 0.37521605 101.08138 7.3731770 6891.5473 43310345. -0.19319729 0.38168534 101.12923 7.2236573 6894.2146 43080932. -0.20276514 0.38815462 101.18867 7.0548212 6896.8818 40509091. -0.23847308 0.39462391 101.24636 6.8868499 6899.5491 37655548. -0.22002338 0.40109320 101.29420 6.7313492 6902.2164 35261475. -0.16351174 0.40756248 101.34605 6.5798531