# # 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 = 60.882448 km # Date (UTC) = 2011-12-04T10:44:50.579 # Date (julian) = 2455899.94780763 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6506.1764 1.2054660e+11 0.074936069 0.034145697 91.779574 32.703468 6508.8792 1.0123965e+11 0.086573571 0.034960717 91.850287 32.571470 6511.5820 8.5870793e+10 0.098424272 0.035775737 91.921549 32.437734 6514.2848 7.3255047e+10 0.11051549 0.036590757 91.995788 32.294557 6516.9876 6.2326422e+10 0.12280287 0.037405777 92.070027 32.149951 6519.6904 5.3158364e+10 0.13534404 0.038220797 92.144266 32.001472 6522.3932 4.6022587e+10 0.14724546 0.039020213 92.215338 31.861137 6525.0960 4.0559830e+10 0.15370268 0.039771260 92.281328 31.733872 6527.7988 3.6042564e+10 0.15789188 0.041296395 92.349482 31.601039 6530.5016 3.2025656e+10 0.16125706 0.044530890 92.423721 31.452561 6533.2044 2.8466876e+10 0.16412828 0.047606436 92.494854 31.312071 6535.9072 2.5469663e+10 0.16399568 0.047830775 92.560843 31.184805 6538.6100 2.3061651e+10 0.16569452 0.049453696 92.627586 31.052122 6541.3127 2.0920079e+10 0.16592771 0.051225108 92.696532 30.903620 6544.0155 1.8789774e+10 0.16552729 0.051656953 92.767434 30.757087 6546.7183 1.6798757e+10 0.16567127 0.053055597 92.841673 30.613911 6549.4211 1.5181094e+10 0.16524115 0.054395440 92.909643 30.476152 6552.1239 1.3904283e+10 0.16448793 0.055555576 92.970921 30.344172 6554.8267 1.2823177e+10 0.16225174 0.054849728 93.036894 30.208136 6557.5295 1.1798186e+10 0.15924987 0.053534212 93.111134 30.064960 6560.2323 1.0838027e+10 0.15589373 0.052064863 93.179196 29.929364 6562.9351 1.0032392e+10 0.15260801 0.049990130 93.240471 29.802097 6565.6379 9.3434510e+09 0.14975483 0.047594071 93.304466 29.667303 6568.3407 8.7352494e+09 0.14784224 0.045458499 93.373405 29.518824 6571.0435 8.1132956e+09 0.14621109 0.044491403 93.442348 29.372823 6573.7463 7.5161837e+09 0.14429375 0.043058623 93.511293 29.229625 6576.4491 7.0050760e+09 0.14220225 0.040854520 93.575762 29.095725 6579.1519 6.5616799e+09 0.13944368 0.036987019 93.637037 28.968459 6581.8546 6.1620252e+09 0.13730911 0.035337811 93.701853 28.833841 6584.5574 5.7659465e+09 0.13523341 0.034211854 93.770793 28.690664 6587.2602 5.3923409e+09 0.13326763 0.033216026 93.832598 28.553941 6589.9630 5.0701134e+09 0.13103304 0.031135428 93.889159 28.421962 6592.6658 4.7867888e+09 0.12801219 0.027426816 93.951348 28.284891 6595.3686 4.5115190e+09 0.12484650 0.025661797 94.020288 28.141714 6598.0714 4.2145247e+09 0.12204847 0.025373075 94.086207 27.998538 6600.7742 3.9247761e+09 0.12112357 0.026581477 94.149838 27.855361 6603.4770 3.6758744e+09 0.11943194 0.026380898 94.211868 27.723043 6606.1798 3.4674153e+09 0.11808159 0.027180901 94.273154 27.595761 6608.8826 3.2891627e+09 0.11405497 0.023709036 94.335759 27.459547 6611.5854 3.1192998e+09 0.10993391 0.024585164 94.399390 27.316370 6614.2882 2.9398985e+09 0.10801487 0.023741960 94.463024 27.173194 6616.9910 2.7598807e+09 0.10613931 0.023437829 94.526660 27.030017 6619.6937 2.6006210e+09 0.10555750 0.024693304 94.584706 26.899415 6622.3965 2.4678164e+09 0.10451310 0.024652447 94.641270 26.772149 6625.0993 2.3471186e+09 0.10312584 0.025516140 94.702561 26.634242 6627.8021 2.2279773e+09 0.10135002 0.025626660 94.766192 26.491066 6630.5049 2.0945999e+09 0.099996441 0.025929546 94.829827 26.347890 6633.2077 1.9705689e+09 0.098554660 0.026188518 94.893462 26.204714 6635.9105 1.8694297e+09 0.096845801 0.026536332 94.950756 26.075798 6638.6133 1.7814649e+09 0.095624029 0.025644922 95.007324 25.948515 6641.3161 1.7023887e+09 0.096104975 0.025149374 95.069376 25.808899 6644.0189 1.6149990e+09 0.095137860 0.025345647 95.133012 25.665722 6646.7217 1.5216018e+09 0.093990487 0.026293712 95.196647 25.522545 6649.4245 1.4354883e+09 0.092756131 0.027048573 95.260196 25.379486 6652.1273 1.3657834e+09 0.092126966 0.027285537 95.312080 25.252174 6654.8301 1.3089233e+09 0.090785843 0.027682613 95.363929 25.124909 6657.5329 1.2571037e+09 0.088308945 0.029519203 95.426180 24.983596 6660.2356 1.1996905e+09 0.086292234 0.031840188 95.489800 24.840419 6662.9384 1.1349489e+09 0.084426432 0.032517752 95.548159 24.697242 6665.6412 1.0735397e+09 0.083476998 0.027496450 95.606490 24.554065 6668.3440 1.0127671e+09 0.082227508 0.027775212 95.664822 24.410888 6671.0468 9.5686381e+08 0.081529083 0.026866015 95.722756 24.272359 6673.7496 9.1115247e+08 0.080436280 0.028580316 95.779328 24.149792 6676.4524 8.7324549e+08 0.077553024 0.032005296 95.836083 24.025076 6679.1552 8.3958700e+08 0.076528356 0.030139523 95.894414 23.881899 6681.8580 8.0578846e+08 0.077777088 0.030315595 95.952745 23.738723 6684.5608 7.6527235e+08 0.078127633 0.032682549 96.011077 23.595546 6687.2636 7.2944152e+08 0.076320338 0.034195900 96.069408 23.454133 6689.9664 6.9510983e+08 0.073761605 0.033146136 96.127740 23.316259 6692.6692 6.5622514e+08 0.072699561 0.031988269 96.186070 23.176015 6695.3720 6.2167334e+08 0.072097346 0.029791150 96.244397 23.032839 6698.0747 5.9227232e+08 0.071236481 0.030320420 96.299090 22.898590 6700.7775 5.7015741e+08 0.068996893 0.031244444 96.350939 22.771325 6703.4803 5.5023730e+08 0.068459641 0.034877189 96.405637 22.639397 6706.1831 5.2894554e+08 0.068373885 0.038765126 96.463969 22.501524 6708.8859 5.0679497e+08 0.067647684 0.041008317 96.522305 22.360701 6711.5887 4.8598723e+08 0.065332748 0.041362030 96.580646 22.217502 6714.2915 4.6495289e+08 0.062646035 0.047325324 96.635436 22.077862 6716.9943 4.4214307e+08 0.060220956 0.049865876 96.688463 21.939989 6719.6971 4.2129943e+08 0.058084855 0.050707548 96.745641 21.797966 6722.3999 4.0390979e+08 0.057829604 0.050110838 96.803972 21.654789 6725.1027 3.8558459e+08 0.053098523 0.041511880 96.857551 21.516368 6727.8055 3.7030445e+08 0.051552706 0.039887263 96.910644 21.378433 6730.5083 3.5532869e+08 0.049794518 0.041075800 96.968968 21.235261 6733.2111 3.3650587e+08 0.048097731 0.045070219 97.026632 21.092749 6735.9139 3.2417107e+08 0.049036041 0.050263556 97.079664 20.954874 6738.6166 3.1236926e+08 0.050357757 0.060716019 97.133965 20.817000 6741.3194 3.0098802e+08 0.048950084 0.066669754 97.192296 20.679126 6744.0222 2.9043062e+08 0.043539381 0.077810609 97.248752 20.539378 6746.7250 2.7654384e+08 0.039518694 0.070558029 97.301779 20.396201 6749.4278 2.6385100e+08 0.037448167 0.072160796 97.358351 20.246290 6752.1306 2.5084374e+08 0.033257891 0.073983332 97.418955 20.088717 6754.8334 2.3734467e+08 0.031523762 0.074873249 97.477701 19.947253 6757.5362 2.2547817e+08 0.029105757 0.075112833 97.536033 19.809378 6760.2390 2.1755872e+08 0.029989533 0.076517020 97.589428 19.666544 6762.9418 2.0961236e+08 0.035036441 0.076531668 97.642463 19.523594 6765.6446 2.0110987e+08 0.037783299 0.079648863 97.695491 19.385720 6768.3474 1.9081185e+08 0.034308519 0.082105953 97.748518 19.247847 6771.0502 1.8442483e+08 0.028884551 0.089426814 97.801546 19.109973 6773.7530 1.7956111e+08 0.023920052 0.095982275 97.856657 18.966684 6776.4558 1.7318405e+08 0.018969894 0.10253774 97.917266 18.809111 6779.1585 1.6655974e+08 0.014029333 0.10909320 97.973138 18.663847 6781.8613 1.5609706e+08 0.0091015410 0.11564866 98.026165 18.525973 6784.5641 1.4967544e+08 0.0041797075 0.12220412 98.079193 18.388099 6787.2669 1.4624340e+08 -0.00072730542 0.12875958 98.132220 18.250225 6789.9697 1.4057451e+08 -0.0056228779 0.13531505 98.186544 18.095542 6792.6725 1.3469216e+08 -0.010503264 0.14187051 98.240782 17.940896 6795.3753 1.2762209e+08 -0.015358183 0.14842597 98.293810 17.797720 6798.0781 1.2155541e+08 -0.020166529 0.15498143 98.349243 17.649974 6800.7809 1.1658398e+08 -0.024924888 0.16153689 98.409847 17.492401 6803.4837 1.1124254e+08 -0.029659685 0.16809235 98.461854 17.347975 6806.1865 1.0792322e+08 -0.034371259 0.17464782 98.509578 17.210101 6808.8893 1.0447524e+08 -0.039075270 0.18120328 98.567373 17.061566 6811.5921 1.0368288e+08 -0.043753737 0.18775874 98.626984 16.911849 6814.2949 99897689. -0.048455662 0.19431420 98.680011 16.773975 6816.9976 94475953. -0.053172733 0.20086966 98.733411 16.631259 6819.7004 91052675. -0.057874814 0.20742513 98.787953 16.473685 6822.4032 82918898. -0.062633255 0.21398059 98.846110 16.316112 6825.1060 80644589. -0.067342613 0.22053605 98.906719 16.158539 6827.8088 76327250. -0.072098930 0.22709151 98.955141 16.019598 6830.5116 74168195. -0.076864208 0.23364697 99.003274 15.880541 6833.2144 73268990. -0.081658074 0.24020243 99.057816 15.722968 6835.9172 68871671. -0.086594873 0.24675790 99.114846 15.565395 6838.6200 67715481. -0.091590031 0.25331336 99.175455 15.407822 6841.3228 64086592. -0.096867507 0.25986882 99.231453 15.254854 6844.0256 60324807. -0.10256979 0.26642428 99.285996 15.102676 6846.7284 54930705. -0.10989466 0.27297974 99.340543 14.945102 6849.4312 50092416. -0.12913326 0.27953520 99.395088 14.787529 6852.1340 48854992. -0.12288603 0.28609067 99.449630 14.629955 6854.8368 51540308. -0.10278426 0.29264613 99.509082 14.472382