# # 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 = 36.571438 km # Date (UTC) = 2011-01-14T08:24:55.538 # Date (julian) = 2455575.85064280 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6502.6049 1.3371466e+11 0.059794286 0.033068707 -11.807061 44.675206 6504.8297 1.1114633e+11 0.069390914 0.033739583 -11.901518 44.550450 6507.0544 9.2269370e+10 0.079053473 0.034410459 -11.988818 44.432595 6509.2792 7.8338582e+10 0.089010092 0.035081335 -12.079849 44.309703 6511.5040 6.7107848e+10 0.099215748 0.035752211 -12.179622 44.175012 6513.7288 5.7739077e+10 0.10968366 0.036423087 -12.275720 44.045280 6515.9536 5.1574815e+10 0.12088233 0.037093962 -12.363019 43.927426 6518.1783 4.5768987e+10 0.13236090 0.037764838 -12.450368 43.809460 6520.4031 4.0877563e+10 0.14427968 0.038435714 -12.545130 43.674816 6522.6279 3.6201173e+10 0.15470798 0.039081672 -12.639929 43.540122 6524.8527 3.1698455e+10 0.16134683 0.039729875 -12.739683 43.405429 6527.0774 2.7953784e+10 0.16645057 0.040772697 -12.839456 43.270735 6529.3022 2.4951419e+10 0.17030530 0.042717202 -12.922482 43.152789 6531.5270 2.2601455e+10 0.17426144 0.045995738 -13.005417 43.034934 6533.7518 2.0529040e+10 0.17698712 0.047839071 -13.096689 42.905232 6535.9766 1.8542009e+10 0.17713515 0.047800670 -13.191473 42.770538 6538.2013 1.6782909e+10 0.17863862 0.049254721 -13.274923 42.647616 6540.4261 1.5369981e+10 0.17804642 0.051055409 -13.353492 42.529761 6542.6509 1.4187031e+10 0.17555130 0.051249353 -13.438678 42.407071 6544.8757 1.3039727e+10 0.17331009 0.052354708 -13.533463 42.277367 6547.1004 1.1979764e+10 0.17065307 0.053325563 -13.621704 42.152445 6549.3252 1.1086107e+10 0.16803770 0.054297710 -13.700274 42.034590 6551.5500 1.0315925e+10 0.16600679 0.055428810 -13.780107 41.914841 6553.7748 9.5716844e+09 0.16354962 0.054945595 -13.869902 41.780147 6555.9996 8.8278180e+09 0.16094245 0.054013497 -13.958486 41.647271 6558.2243 8.1700894e+09 0.15879220 0.053048143 -14.037055 41.529417 6560.4491 7.6214017e+09 0.15575138 0.051869375 -14.115625 41.411563 6562.6739 7.1092369e+09 0.15271601 0.050238671 -14.203367 41.279950 6564.8987 6.6029844e+09 0.14992815 0.048364320 -14.293163 41.145256 6567.1234 6.1172280e+09 0.14735389 0.046512810 -14.373846 41.024229 6569.3482 5.7075896e+09 0.14482434 0.044875088 -14.452427 40.906357 6571.5730 5.3318570e+09 0.14258583 0.044346777 -14.534257 40.779708 6573.7978 4.9621384e+09 0.13957231 0.043017282 -14.619064 40.645016 6576.0226 4.6043249e+09 0.13652450 0.041345429 -14.698387 40.519034 6578.2473 4.2933405e+09 0.13316719 0.038259042 -14.772591 40.401180 6580.4721 4.0171503e+09 0.12952990 0.036084452 -14.849196 40.279514 6582.6969 3.7331573e+09 0.12627801 0.035104151 -14.934003 40.144820 6584.9217 3.4456378e+09 0.12304213 0.034013443 -15.016458 40.013861 6587.1464 3.1794968e+09 0.11967467 0.033190816 -15.090663 39.896007 6589.3712 2.9587048e+09 0.11608441 0.032309501 -15.164868 39.778152 6591.5960 2.7786962e+09 0.11199622 0.028529390 -15.239072 39.664360 6593.8208 2.6164439e+09 0.10841838 0.026339144 -15.313277 39.550870 6596.0456 2.4442337e+09 0.10497637 0.025727067 -15.391073 39.423813 6598.2703 2.2728238e+09 0.10299338 0.025278097 -15.470891 39.289122 6600.4951 2.1114905e+09 0.10256152 0.026007738 -15.544370 39.165127 6602.7199 1.9777959e+09 0.10173381 0.026902307 -15.614210 39.047272 6604.9447 1.8591119e+09 0.10081839 0.026632190 -15.687486 38.923619 6607.1694 1.7394121e+09 0.099468253 0.025372400 -15.767304 38.788925 6609.3942 1.6205047e+09 0.096387882 0.023823035 -15.843731 38.659954 6611.6190 1.5171148e+09 0.093661275 0.024563715 -15.913571 38.542099 6613.8438 1.4279809e+09 0.092531979 0.023883175 -15.983898 38.423422 6616.0686 1.3348946e+09 0.090902406 0.023293059 -16.063716 38.288728 6618.2933 1.2406939e+09 0.090241117 0.023992300 -16.143092 38.154780 6620.5181 1.1481814e+09 0.089440425 0.024934159 -16.212932 38.036926 6622.7429 1.0778619e+09 0.087868460 0.024560260 -16.282772 37.919071 6624.9677 1.0223250e+09 0.086125669 0.025380298 -16.349323 37.804506 6627.1924 9.7244881e+08 0.083745000 0.025391150 -16.414799 37.691017 6629.4172 9.1805785e+08 0.082334936 0.026033669 -16.486905 37.567724 6631.6420 8.5248088e+08 0.080396895 0.025995980 -16.566724 37.433031 6633.8668 7.9542816e+08 0.078676560 0.026303584 -16.639975 37.306046 6636.0916 7.4220652e+08 0.076914203 0.026514197 -16.705449 37.188192 6638.3163 7.0393751e+08 0.075522016 0.025657860 -16.772485 37.067528 6640.5411 6.6124025e+08 0.075453310 0.025204446 -16.847315 36.932834 6642.7659 6.1467838e+08 0.075193075 0.025183038 -16.920626 36.801581 6644.9907 5.7829066e+08 0.074325677 0.025450676 -16.986101 36.688092 6647.2154 5.4763961e+08 0.073385370 0.026551214 -17.051575 36.574604 6649.4402 5.1560686e+08 0.072714973 0.027026859 -17.125201 36.442639 6651.6650 4.8290763e+08 0.072634372 0.026993794 -17.200030 36.307945 6653.8898 4.4846184e+08 0.072372450 0.027979952 -17.262976 36.187832 6656.1146 4.1960167e+08 0.070910896 0.028123965 -17.324095 36.069960 6658.3393 3.9815287e+08 0.069677356 0.030662899 -17.393106 35.942410 6660.5641 3.7313590e+08 0.068530252 0.032138750 -17.467923 35.807739 6662.7889 3.5317910e+08 0.067482295 0.032601657 -17.534914 35.685159 6665.0137 3.3356489e+08 0.067056163 0.028524732 -17.596033 35.571653 6667.2384 3.1346581e+08 0.066838735 0.027191043 -17.659600 35.452201 6669.4632 2.9190554e+08 0.066121729 0.027879938 -17.729442 35.317507 6671.6880 2.6971305e+08 0.066350699 0.026875153 -17.796872 35.187463 6673.9128 2.5253645e+08 0.065856920 0.028824348 -17.857982 35.069608 6676.1376 2.4137527e+08 0.063748606 0.031802380 -17.919091 34.951754 6678.3623 2.2724363e+08 0.063005374 0.030694268 -17.988802 34.822225 6680.5871 2.1516189e+08 0.063775836 0.029568199 -18.058642 34.692519 6682.8119 2.0161896e+08 0.064693499 0.031044859 -18.119922 34.574434 6685.0367 1.8881987e+08 0.064811640 0.032743570 -18.181032 34.456580 6687.2614 1.7925215e+08 0.063141571 0.034197088 -18.248163 34.327114 6689.4862 1.6869407e+08 0.060854510 0.033578344 -18.318005 34.192421 6691.7110 1.5870178e+08 0.060132165 0.032833513 -18.381864 34.072254 6693.9358 1.4823477e+08 0.059493596 0.031283058 -18.442973 33.958764 6696.1606 1.4195361e+08 0.059699666 0.029742494 -18.505558 33.836917 6698.3853 1.3153203e+08 0.059161217 0.030746736 -18.570411 33.702224 6700.6101 1.2299848e+08 0.057795186 0.031120257 -18.632105 33.575790 6702.8349 1.1518018e+08 0.057492967 0.033543395 -18.688849 33.462302 6705.0597 1.0842007e+08 0.058060278 0.036774687 -18.746884 33.346723 6707.2844 1.0420863e+08 0.057968308 0.040146079 -18.816725 33.212030 6709.5092 98665790. 0.057459151 0.040808651 -18.885334 33.079330 6711.7340 94011211. 0.055708917 0.041527327 -18.942080 32.965841 6713.9588 89248307. 0.053769392 0.047154328 -18.998825 32.852352 6716.1836 84519689. 0.052287698 0.048671725 -19.062081 32.721834 6718.4083 77503627. 0.050413375 0.050448367 -19.126933 32.587140 6720.6331 69556938. 0.050547379 0.050346409 -19.191785 32.456430 6722.8579 64809047. 0.050261537 0.049544626 -19.256638 32.326724 6725.0827 59580990. 0.046599012 0.041524381 -19.311587 32.206428 6727.3074 56647505. 0.045790689 0.040550778 -19.363967 32.088573 6729.5322 54640002. 0.046023650 0.040690686 -19.422620 31.964759 6731.7570 51770808. 0.045884659 0.043256601 -19.487473 31.835055 6733.9818 49995520. 0.053797527 0.049254683 -19.552325 31.702863 6736.2066 51279139. 0.047890660 0.051135913 -19.617178 31.568169 6738.4313 54339434. 0.034283434 0.059695796 -19.679566 31.435939