# # 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 = 65.046672 km # Date (UTC) = 2013-12-13T09:33:21.564 # Date (julian) = 2456639.89816625 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6500.3193 5.5847440e+10 0.043916818 0.032379499 112.03415 29.200578 6502.6853 5.1692853e+10 0.053116169 0.033092942 112.08892 29.086168 6505.0512 4.7728682e+10 0.062613754 0.033806384 112.14257 28.970622 6507.4171 4.4409786e+10 0.072560665 0.034519827 112.19746 28.856327 6509.7831 4.1435802e+10 0.082975575 0.035233269 112.25522 28.744924 6512.1490 3.8731997e+10 0.093894841 0.035946712 112.31299 28.633520 6514.5150 3.6165941e+10 0.10528988 0.036660154 112.36713 28.522115 6516.8809 3.3631380e+10 0.11713483 0.037373597 112.42077 28.410711 6519.2468 3.1246837e+10 0.12949113 0.038087039 112.47628 28.299306 6521.6128 2.9035660e+10 0.14236450 0.038800482 112.53405 28.187901 6523.9787 2.6954679e+10 0.14992768 0.039421682 112.59168 28.076367 6526.3446 2.4912825e+10 0.15595742 0.040029407 112.64533 27.960821 6528.7106 2.2853506e+10 0.16136777 0.042006190 112.69898 27.845275 6531.0765 2.0873721e+10 0.16543559 0.045340058 112.75262 27.732248 6533.4425 1.9077790e+10 0.16972190 0.047707620 112.80626 27.620844 6535.8084 1.7507329e+10 0.17086348 0.047873616 112.85990 27.509439 6538.1743 1.6157719e+10 0.17311267 0.049241575 112.91354 27.398035 6540.5403 1.4915074e+10 0.17364349 0.051109343 112.96718 27.286630 6542.9062 1.3745419e+10 0.17244924 0.051346288 113.02082 27.175225 6545.2722 1.2648901e+10 0.17091350 0.052458005 113.07446 27.063821 6547.6381 1.1636708e+10 0.16884068 0.053530020 113.12810 26.952411 6550.0040 1.0719012e+10 0.16706355 0.054986369 113.18174 26.840992 6552.3700 9.9054726e+09 0.16492693 0.055493645 113.23539 26.729573 6554.7359 9.2026941e+09 0.16271749 0.054847823 113.28526 26.618167 6557.1018 8.5708265e+09 0.16045615 0.053802268 113.33477 26.506763 6559.4678 7.9539032e+09 0.15777609 0.052334381 113.38960 26.388528 6561.8337 7.3168934e+09 0.15518936 0.050961839 113.44994 26.263196 6564.1997 6.7147430e+09 0.15247237 0.048681109 113.50803 26.142546 6566.5656 6.1902780e+09 0.15067407 0.046862924 113.56167 26.031141 6568.9315 5.7606644e+09 0.14890698 0.044915354 113.61531 25.919736 6571.2975 5.3924966e+09 0.14766811 0.044422027 113.66519 25.808318 6573.6634 5.0666298e+09 0.14571157 0.043125103 113.71471 25.696899 6576.0294 4.7834549e+09 0.14347439 0.041337602 113.76423 25.585487 6578.3953 4.5196581e+09 0.14100866 0.038025395 113.81374 25.474083 6580.7612 4.2687131e+09 0.13835639 0.035817262 113.86353 25.362679 6583.1272 4.0358668e+09 0.13619835 0.034957296 113.91716 25.251275 6585.4931 3.8091263e+09 0.13373571 0.033576541 113.97080 25.139870 6587.8591 3.5999263e+09 0.13156734 0.033348702 114.02179 25.031115 6590.2250 3.4008327e+09 0.12875820 0.030643550 114.07131 24.923836 6592.5909 3.2065951e+09 0.12553823 0.027499554 114.12082 24.815653 6594.9569 3.0349751e+09 0.12240258 0.025647249 114.17034 24.704234 6597.3228 2.8712675e+09 0.11939601 0.025620862 114.21986 24.592814 6599.6887 2.7153547e+09 0.11817131 0.024971155 114.26938 24.481407 6602.0547 2.5744473e+09 0.11813156 0.027469968 114.31889 24.370002 6604.4206 2.4403930e+09 0.11721193 0.026321028 114.36840 24.258597 6606.7866 2.3248857e+09 0.11668689 0.026090537 114.41791 24.147194 6609.1525 2.2190683e+09 0.11381255 0.023751231 114.46743 24.035790 6611.5184 2.1097231e+09 0.11128997 0.024627845 114.52281 23.915582 6613.8844 2.0000172e+09 0.11056125 0.023898070 114.57851 23.794892 6616.2503 1.8925162e+09 0.10932887 0.023321586 114.62602 23.681572 6618.6163 1.8023079e+09 0.10888906 0.024236142 114.67141 23.570168 6620.9822 1.7274424e+09 0.10815936 0.025083708 114.71833 23.458757 6623.3481 1.6565011e+09 0.10658140 0.024620804 114.76785 23.347338 6625.7141 1.5914126e+09 0.10520135 0.026249706 114.81737 23.235918 6628.0800 1.5326140e+09 0.10331807 0.025735580 114.86688 23.128420 6630.4459 1.4797618e+09 0.10157063 0.025929401 114.91640 23.021142 6632.8119 1.4259968e+09 0.099804518 0.026129697 114.96375 22.911705 6635.1778 1.3743765e+09 0.098018791 0.026426455 115.00914 22.800301 6637.5438 1.3219394e+09 0.096321629 0.025895092 115.05555 22.687509 6639.9097 1.2595564e+09 0.095811468 0.025302926 115.11126 22.562176 6642.2756 1.1999858e+09 0.095647727 0.025162976 115.16696 22.436843 6644.6416 1.1395463e+09 0.094323546 0.025412947 115.21291 22.328566 6647.0075 1.0877669e+09 0.092802220 0.026441739 115.25831 22.221273 6649.3735 1.0466674e+09 0.091419694 0.027118893 115.30370 22.111833 6651.7394 1.0030517e+09 0.090917450 0.027050807 115.34908 22.000429 6654.1053 9.6150131e+08 0.090286967 0.027991351 115.39488 21.889431 6656.4713 9.2574133e+08 0.088466647 0.028437053 115.44439 21.782153 6658.8372 8.8750056e+08 0.086894723 0.031545893 115.49391 21.674874 6661.2032 8.5019810e+08 0.085552476 0.032638419 115.54446 21.558544 6663.5691 8.1077735e+08 0.084267597 0.032325504 115.59553 21.437853 6665.9350 7.7141768e+08 0.084178511 0.027015051 115.64363 21.321997 6668.3010 7.3568557e+08 0.083346257 0.027737110 115.68902 21.210594 6670.6669 7.0574893e+08 0.082981636 0.027019665 115.73441 21.099589 6673.0328 6.8081790e+08 0.082542567 0.027508340 115.77980 20.992296 6675.3988 6.5688105e+08 0.080529245 0.030562176 115.82519 20.885004 6677.7647 6.3181964e+08 0.078796643 0.031271084 115.87440 20.768685 6680.1307 6.0352279e+08 0.078927443 0.029469632 115.92546 20.647994 6682.4966 5.7388814e+08 0.079655686 0.030803965 115.97357 20.532128 6684.8625 5.4483414e+08 0.079620876 0.032697862 116.01896 20.420723 6687.2285 5.2596698e+08 0.077599962 0.034215476 116.06435 20.309715 6689.5944 5.1325158e+08 0.074761230 0.033480954 116.10974 20.202436 6691.9604 4.9903465e+08 0.073422494 0.032774682 116.15512 20.095157 6694.3263 4.8465167e+08 0.072289588 0.030803708 116.20120 19.978862 6696.6922 4.6246140e+08 0.071809530 0.029963394 116.24762 19.858172 6699.0582 4.4139909e+08 0.070320029 0.031536756 116.29351 19.744422 6701.4241 4.3049102e+08 0.068214544 0.032031736 116.33890 19.637130 6703.7900 4.1516753e+08 0.068176576 0.035652189 116.38483 19.528569 6706.1560 3.9941920e+08 0.068217550 0.038717889 116.43590 19.407879 6708.5219 3.8597225e+08 0.067773100 0.040611938 116.48696 19.287189 6710.8879 3.6811546e+08 0.066194052 0.040670284 116.52880 19.175231 6713.2538 3.5723438e+08 0.063975617 0.044604579 116.57006 19.063826 6715.6197 3.4624834e+08 0.061890112 0.048012443 116.61639 18.947622 6717.9857 3.3257753e+08 0.059694630 0.049813299 116.66745 18.826932 6720.3516 3.2198641e+08 0.058688828 0.050379025 116.71683 18.706242 6722.7176 3.0816943e+08 0.058183536 0.049718115 116.76325 18.585551 6725.0835 2.9320448e+08 0.053873509 0.041523863 116.80946 18.467652 6727.4494 2.8276338e+08 0.052413291 0.040361608 116.85485 18.360359 6729.8154 2.7194241e+08 0.051395640 0.040501959 116.90024 18.253067 6732.1813 2.6268414e+08 0.049576411 0.043773588 116.94644 18.135256 6734.5473 2.5390133e+08 0.049045003 0.049320673 116.99286 18.014566 6736.9132 2.4236707e+08 0.050904964 0.053807379 117.03928 17.893875 6739.2791 2.3415868e+08 0.051505630 0.063168153 117.08570 17.773185 6741.6451 2.2518601e+08 0.049654355 0.067598465 117.13163 17.658886 6744.0110 2.1684263e+08 0.044589819 0.077801926 117.17701 17.551608 6746.3769 2.0807702e+08 0.041996170 0.074604859 117.22245 17.443622 6748.7429 2.0059242e+08 0.039429668 0.070925242 117.26887 17.322931 6751.1088 1.9106301e+08 0.036278760 0.073757682 117.31529 17.202241 6753.4748 1.8805106e+08 0.033408340 0.074513707 117.36171 17.085722 6755.8407 1.8787253e+08 0.030846617 0.074236751 117.40813 16.969674 6758.2066 1.8518421e+08 0.030093553 0.074142290 117.45455 16.850171 6760.5726 1.8308216e+08 0.030622947 0.077153152 117.50097 16.729480 6762.9385 1.7295207e+08 0.035771766 0.076536941 117.54739 16.608789 6765.3045 1.6461866e+08 0.038392491 0.079586772 117.59381 16.488099 6767.6704 1.5823174e+08 0.036737870 0.081225098 117.63798 16.373247 6770.0363 1.5258729e+08 0.031664369 0.086967825 117.67925 16.265955 6772.4023 1.4919153e+08 0.027341051 0.092706266 117.72058 16.158553 6774.7682 1.4525283e+08 0.023020362 0.098444708 117.76700 16.042505 6777.1341 1.4076244e+08 0.018702362 0.10418315 117.81342 15.926457 6779.5001 1.3703057e+08 0.014374497 0.10992159 117.85984 15.806424 6781.8660 1.3149399e+08 0.010060465 0.11566003 117.90625 15.685733 6784.2320 1.2678245e+08 0.0057363794 0.12139847 117.95267 15.565043 6786.5979 1.2409691e+08 0.0013970295 0.12713692 117.99909 15.444354 6788.9638 1.2033781e+08 -0.0029361141 0.13287536 118.04296 15.326215 6791.3298 1.1670451e+08 -0.0072687300 0.13861380 118.08474 15.210167 6793.6957 1.0941106e+08 -0.011597904 0.14435224 118.13097 15.085466 6796.0617 1.0545622e+08 -0.015937009 0.15009068 118.18403 14.947532 6798.4276 1.0197557e+08 -0.020273136 0.15582912 118.23369 14.818399 6800.7935 97918322. -0.024613172 0.16156757 118.28011 14.697709 6803.1595 94238897. -0.028948717 0.16730601 118.32488 14.578671 6805.5254 89123228. -0.033287013 0.17304445 118.36666 14.462623 6807.8914 87642489. -0.037566456 0.17878289 118.40937 14.345637 6810.2573 86601745. -0.041819392 0.18452133 118.45579 14.224947 6812.6232 84706055. -0.046077221 0.19025977 118.50221 14.104477 6814.9892 82112046. -0.050350438 0.19599821 118.54863 13.988411 6817.3551 79045148. -0.054641703 0.20173666 118.59506 13.872346 6819.7210 76145695. -0.058942058 0.20747510 118.64267 13.736738 6822.0870 73261459. -0.063257205 0.21321354 118.69040 13.598994 6824.4529 69559347. -0.067621579 0.21895198 118.73682 13.482946 6826.8189 66519178. -0.072001090 0.22469042 118.78324 13.366898 6829.1848 65023982. -0.076360215 0.23042886 118.83079 13.236682 6831.5507 65050154. -0.080695869 0.23616731 118.87854 13.104052 6833.9167 63134246. -0.085196027 0.24190575 118.92050 12.982997 6836.2826 60759054. -0.089854869 0.24764419 118.96228 12.862307 6838.6486 58205649. -0.094748840 0.25338263 119.01325 12.731885 6841.0145 57751950. -0.099826429 0.25912107 119.06630 12.599255 6843.3804 56377716. -0.10564819 0.26485951 119.10886 12.482050 6845.7464 51995336. -0.11424905 0.27059796 119.15064 12.366002 6848.1123 47946057. -0.14328415 0.27633640 119.19705 12.232972 6850.4782 43769076. -0.12937483 0.28207484 119.24480 12.095037 6852.8442 43679563. -0.086052909 0.28781328 119.29136 11.976602