# # 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 = 51.531051 km # Date (UTC) = 2013-01-02T10:47:53.380 # Date (julian) = 2456294.94992338 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6498.5983 6.7475850e+10 0.036951957 0.031860529 91.385287 36.561910 6500.8552 6.1751847e+10 0.045671194 0.032541096 91.452201 36.459576 6503.1121 5.6960331e+10 0.054804041 0.033221663 91.519114 36.357241 6505.3690 5.2605928e+10 0.064351416 0.033902229 91.588145 36.245635 6507.6260 4.8282495e+10 0.074247032 0.034582796 91.658992 36.126078 6509.8829 4.4193918e+10 0.084564033 0.035263363 91.727635 36.010241 6512.1398 4.0681890e+10 0.095483097 0.035943930 91.790612 35.903970 6514.3967 3.7778876e+10 0.10710280 0.036624497 91.853588 35.797699 6516.6536 3.5116728e+10 0.11928129 0.037305063 91.922392 35.681592 6518.9105 3.2316868e+10 0.13181833 0.037985630 91.993249 35.562017 6521.1674 2.9395130e+10 0.14464133 0.038666197 92.064103 35.442451 6523.4244 2.6572827e+10 0.15373733 0.039284290 92.134953 35.322894 6525.6813 2.4078634e+10 0.16020929 0.039704462 92.204046 35.206300 6527.9382 2.2046212e+10 0.16681511 0.041397611 92.267020 35.100029 6530.1951 2.0336231e+10 0.17236747 0.044101844 92.329994 34.993758 6532.4520 1.8744658e+10 0.17666196 0.047061809 92.395320 34.878421 6534.7089 1.7172484e+10 0.17894299 0.048142875 92.461741 34.758864 6536.9659 1.5697757e+10 0.17955021 0.048654675 92.526702 34.644941 6539.2228 1.4489589e+10 0.17886379 0.049913284 92.589679 34.538669 6541.4797 1.3457879e+10 0.17692236 0.051170971 92.652655 34.432398 6543.7366 1.2490546e+10 0.17424669 0.051575217 92.718672 34.314393 6545.9935 1.1519990e+10 0.17140113 0.052464468 92.785089 34.194838 6548.2504 1.0611968e+10 0.16969997 0.053742433 92.846901 34.083576 6550.5073 9.8580543e+09 0.16764776 0.055112394 92.905949 33.977291 6552.7643 9.2013327e+09 0.16566737 0.055394403 92.965620 33.870258 6555.0212 8.5580411e+09 0.16349220 0.054835572 93.032042 33.755128 6557.2781 7.9196636e+09 0.16090164 0.053691799 93.098463 33.639998 6559.5350 7.3491913e+09 0.15804626 0.052326794 93.158785 33.532188 6561.7919 6.8995145e+09 0.15502271 0.050982440 93.217825 33.425917 6564.0488 6.5177499e+09 0.15164346 0.048749465 93.277708 33.315852 6566.3058 6.1301007e+09 0.14915081 0.047009921 93.339700 33.196297 6568.5627 5.7416239e+09 0.14701962 0.045254438 93.401612 33.077104 6570.8196 5.3874556e+09 0.14500448 0.044578011 93.460652 32.970833 6573.0765 5.0941612e+09 0.14264125 0.043596095 93.519692 32.864562 6575.3334 4.8226954e+09 0.13975385 0.042040191 93.580173 32.753972 6577.5903 4.5223752e+09 0.13665140 0.039293111 93.642174 32.638825 6579.8472 4.2123805e+09 0.13346720 0.036604731 93.703498 32.525707 6582.1042 3.9358987e+09 0.13039449 0.035265451 93.762535 32.419436 6584.3611 3.7022536e+09 0.12725243 0.034318821 93.821572 32.313165 6586.6180 3.4907189e+09 0.12411524 0.033163308 93.882644 32.197754 6588.8749 3.2775931e+09 0.12121092 0.033087754 93.944639 32.078197 6591.1318 3.0675272e+09 0.11805487 0.029053168 94.003674 31.966038 6593.3887 2.8971387e+09 0.11556545 0.026740816 94.058777 31.863704 6595.6456 2.7548398e+09 0.11286324 0.025690527 94.113880 31.761370 6597.9026 2.6213343e+09 0.11082575 0.025437912 94.175107 31.643726 6600.1595 2.4819237e+09 0.11016844 0.025317735 94.237099 31.524169 6602.4164 2.3326284e+09 0.10962224 0.027161299 94.299092 31.404612 6604.6733 2.1840273e+09 0.10873733 0.026471065 94.361084 31.285056 6606.9302 2.0490978e+09 0.10788914 0.025832378 94.420514 31.171904 6609.1871 1.9350620e+09 0.10486792 0.023761521 94.475625 31.069557 6611.4441 1.8396497e+09 0.10210990 0.024675280 94.530735 30.967209 6613.7010 1.7500193e+09 0.10107572 0.023830778 94.587886 30.850545 6615.9579 1.6534785e+09 0.099543240 0.023281003 94.645449 30.730988 6618.2148 1.5546718e+09 0.098984304 0.023932996 94.701601 30.621308 6620.4717 1.4737822e+09 0.098175198 0.024919208 94.756705 30.518973 6622.7286 1.4069278e+09 0.096635960 0.024564055 94.811889 30.416073 6624.9855 1.3391546e+09 0.095031282 0.025389868 94.869455 30.296516 6627.2425 1.2691138e+09 0.092854419 0.025410470 94.927022 30.176959 6629.4994 1.2013242e+09 0.091572107 0.026018816 94.979631 30.070740 6631.7563 1.1452202e+09 0.089592316 0.026007590 95.030798 29.968405 6634.0132 1.0965849e+09 0.087795074 0.026327806 95.084495 29.862044 6636.2701 1.0456173e+09 0.086036875 0.026444853 95.146487 29.742488 6638.5270 9.9030877e+08 0.084762036 0.025648681 95.208479 29.622932 6640.7840 9.3479950e+08 0.085084450 0.025174734 95.266160 29.507677 6643.0409 8.8077573e+08 0.084897591 0.025198789 95.323732 29.392531 6645.2978 8.3437109e+08 0.084104359 0.025591185 95.376710 29.283752 6647.5547 7.9700014e+08 0.083235521 0.026729831 95.427879 29.177481 6649.8116 7.6411551e+08 0.082588456 0.026514918 95.479396 29.069644 6652.0685 7.3298620e+08 0.082245414 0.027269376 95.532530 28.954516 6654.3254 7.0060279e+08 0.081623549 0.027897583 95.585664 28.839387 6656.5824 6.6272678e+08 0.079955625 0.028534551 95.642869 28.724258 6658.8393 6.2534198e+08 0.078567155 0.031549549 95.700436 28.609130 6661.0962 5.8893000e+08 0.077408292 0.032583941 95.753777 28.499848 6663.3531 5.6046599e+08 0.076261779 0.032385359 95.804944 28.393576 6665.6100 5.3769998e+08 0.075986472 0.027547591 95.856875 28.286247 6667.8669 5.1373044e+08 0.075417768 0.027421898 95.914441 28.171119 6670.1239 4.8762131e+08 0.074907291 0.027271255 95.972008 28.055991 6672.3808 4.6083062e+08 0.074707632 0.027100298 96.025764 27.940848 6674.6377 4.3906519e+08 0.073531273 0.029492717 96.078906 27.825702 6676.8946 4.1591649e+08 0.071294275 0.032290286 96.128484 27.715909 6679.1515 3.9952629e+08 0.070683958 0.030142569 96.175717 27.609638 6681.4084 3.8111489e+08 0.071741514 0.029970697 96.223594 27.502814 6683.6653 3.6543587e+08 0.072099585 0.032163647 96.281157 27.387685 6685.9223 3.5143996e+08 0.071542235 0.033678969 96.338720 27.272556 6688.1792 3.3172020e+08 0.068977115 0.033826549 96.392725 27.157427 6690.4361 3.2094699e+08 0.067150179 0.033065888 96.445863 27.042298 6692.6930 3.0772550e+08 0.066266622 0.031960586 96.498999 26.927169 6694.9499 2.9330261e+08 0.065797039 0.029929667 96.552133 26.812040 6697.2068 2.7926557e+08 0.065404224 0.030117440 96.605268 26.696912 6699.4637 2.6288419e+08 0.064190666 0.031162525 96.658405 26.581783 6701.7207 2.4941729e+08 0.062536820 0.032466864 96.711371 26.466912 6703.9776 2.3953104e+08 0.062819079 0.036121448 96.758604 26.360642 6706.2345 2.3074349e+08 0.062854961 0.038854523 96.805836 26.254371 6708.4914 2.2261723e+08 0.062422581 0.040578705 96.855955 26.143766 6710.7483 2.1532766e+08 0.060861162 0.040642970 96.909098 26.028620 6713.0052 2.0653174e+08 0.058803916 0.043705575 96.962239 25.913477 6715.2622 1.9612645e+08 0.056747322 0.047646713 97.015376 25.798348 6717.5191 1.8688240e+08 0.054601347 0.049842162 97.068514 25.683220 6719.7760 1.7779662e+08 0.053008444 0.050632597 97.117346 25.568091 6722.0329 1.6808292e+08 0.053098115 0.050564531 97.166055 25.452963 6724.2898 1.6107807e+08 0.050270884 0.047506515 97.217924 25.337834 6726.5467 1.5221259e+08 0.046906749 0.040956298 97.271061 25.222705 6728.8036 1.4445935e+08 0.046320611 0.040767129 97.324197 25.107577 6731.0606 1.4177104e+08 0.044339539 0.041870553 97.377332 24.992448 6733.3175 1.4161542e+08 0.042887563 0.045647978 97.429594 24.877319 6735.5744 1.4353437e+08 0.043481179 0.049903191 97.478303 24.762190 6737.8313 1.4285032e+08 0.044784843 0.056783714 97.527011 24.647060 6740.0882 1.3647769e+08 0.044483838 0.064201074 97.575720 24.531932 6742.3451 1.3145532e+08 0.041669781 0.069451743 97.624428 24.416803 6744.6021 1.2364417e+08 0.037305902 0.078259084 97.676150 24.301675 6746.8590 1.1788899e+08 0.032917369 0.069000820 97.729288 24.186547 6749.1159 1.1193766e+08 0.032073212 0.072246204 97.780559 24.071412 6751.3728 1.0507052e+08 0.028458675 0.073869292 97.829275 23.956266 6753.6297 1.0141152e+08 0.026087231 0.075015156 97.877990 23.841849 6755.8866 95553654. 0.023471288 0.074216615 97.926698 23.731148 6758.1435 89987641. 0.022572465 0.074008865 97.975407 23.620448 6760.4005 86525101. 0.022972042 0.076824928 98.024112 23.505736 6762.6574 84220919. 0.027473804 0.076990447 98.072818 23.390607 6764.9143 82500758. 0.030101358 0.079527087 98.126030 23.264830 6767.1712 81473004. 0.029639879 0.081784061 98.181698 23.133252 6769.4281 76422189. 0.024336779 0.085492639 98.232694 23.012716 6771.6850 71520551. 0.019858743 0.090966651 98.281403 22.897587 6773.9420 66173789. 0.015236503 0.096440662 98.330111 22.782459 6776.1989 66127239. 0.010920477 0.10191467 98.378820 22.667330 6778.4558 64451405. 0.0063318127 0.10738869 98.427528 22.552886 6780.7127 60382519. 0.0012028443 0.11286270 98.476237 22.442185 6782.9696 58757598. -0.0041607318 0.11833671 98.524946 22.331483 6785.2265 54342167. -0.011059834 0.12381072 98.579892 22.202071 6787.4834 54650160. -0.019991469 0.12928473 98.635560 22.070492 6789.7404 53435188. -0.054874406 0.13475874 98.684824 21.954052 6791.9973 49604176. -0.034682099 0.14023276 98.733532 21.838923 6794.2542 48267896. 0.021446063 0.14570677 98.779309 21.726726