# # 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 = 64.083643 km # Date (UTC) = 2014-12-05T10:03:21.405 # Date (julian) = 2456996.91899775 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6505.3096 6.7853499e+10 0.068320058 0.033884300 105.43721 26.951273 6507.9965 6.0625752e+10 0.079839092 0.034694526 105.50045 26.809044 6510.6834 5.3805575e+10 0.091524499 0.035504752 105.56137 26.677819 6513.3703 4.8431561e+10 0.10363949 0.036314977 105.62228 26.546616 6516.0572 4.4236105e+10 0.11629407 0.037125203 105.67911 26.415413 6518.7441 4.0439971e+10 0.12936867 0.037935429 105.73534 26.284210 6521.4309 3.6595485e+10 0.14269711 0.038745655 105.80067 26.144762 6524.1178 3.2849952e+10 0.15023088 0.039468824 105.86921 26.002406 6526.8047 2.9422066e+10 0.15594570 0.040511760 105.92738 25.869448 6529.4916 2.6525865e+10 0.15996105 0.043018911 105.98361 25.738245 6532.1785 2.4194593e+10 0.16385095 0.046833331 106.03984 25.607042 6534.8654 2.2109336e+10 0.16568081 0.048186649 106.09607 25.475839 6537.5523 2.0061926e+10 0.16631243 0.048945618 106.15634 25.338242 6540.2392 1.8086534e+10 0.16718206 0.050967111 106.21960 25.195907 6542.9261 1.6232636e+10 0.16643643 0.051353838 106.27809 25.061114 6545.6130 1.4620980e+10 0.16589678 0.052461059 106.33432 24.929912 6548.2999 1.3351927e+10 0.16551652 0.053757204 106.39056 24.801246 6550.9868 1.2293042e+10 0.16408013 0.055232443 106.44680 24.674712 6553.6737 1.1278433e+10 0.16235034 0.054996416 106.50591 24.539548 6556.3606 1.0293373e+10 0.15972017 0.053960114 106.56917 24.391941 6559.0475 9.3791781e+09 0.15676140 0.052381824 106.62642 24.255145 6561.7344 8.5804912e+09 0.15401382 0.051010802 106.67796 24.128628 6564.4213 7.9426055e+09 0.15112246 0.048580683 106.73128 24.002111 6567.1082 7.3847628e+09 0.14917396 0.046525741 106.78751 23.875594 6569.7950 6.8579002e+09 0.14766877 0.044904170 106.84375 23.747928 6572.4819 6.4098930e+09 0.14604063 0.043954160 106.89998 23.616707 6575.1688 5.9893453e+09 0.14403813 0.042205312 106.95641 23.484257 6577.8557 5.5744195e+09 0.14169308 0.038876227 107.01440 23.341923 6580.5426 5.1879818e+09 0.13921825 0.036019289 107.07101 23.202968 6583.2295 4.8132467e+09 0.13739130 0.034905494 107.12255 23.076450 6585.9164 4.5012236e+09 0.13519693 0.033238121 107.17447 22.949560 6588.6033 4.2524304e+09 0.13341936 0.033178454 107.23070 22.818358 6591.2902 4.0168001e+09 0.13065146 0.028874450 107.28693 22.687155 6593.9771 3.7761953e+09 0.12801100 0.026193817 107.34483 22.545428 6596.6640 3.5360196e+09 0.12495604 0.025724255 107.40250 22.403860 6599.3509 3.2999517e+09 0.12297455 0.024950834 107.45405 22.277326 6602.0378 3.1029021e+09 0.12241471 0.027484393 107.50561 22.150791 6604.7247 2.9478357e+09 0.12061241 0.026501564 107.55715 22.024273 6607.4116 2.8011810e+09 0.11839890 0.024894301 107.60869 21.897757 6610.0985 2.6532906e+09 0.11407287 0.024097058 107.66527 21.758892 6612.7854 2.4972995e+09 0.11119802 0.023733963 107.72326 21.616558 6615.4723 2.3559105e+09 0.10924413 0.023266062 107.77555 21.484060 6618.1591 2.2385096e+09 0.10815568 0.023890971 107.82709 21.352856 6620.8460 2.1256929e+09 0.10749948 0.025039833 107.88346 21.213309 6623.5329 2.0110554e+09 0.10600509 0.024689270 107.94145 21.070975 6626.2198 1.8963498e+09 0.10476840 0.026310820 107.99395 20.942113 6628.9067 1.7978207e+09 0.10321999 0.026071234 108.04550 20.815580 6631.5936 1.7200693e+09 0.10141732 0.025991065 108.09705 20.689058 6634.2805 1.6455129e+09 0.099811414 0.026347305 108.14859 20.562541 6636.9674 1.5651895e+09 0.098217351 0.026174069 108.20390 20.426775 6639.6543 1.4824892e+09 0.097684454 0.025394213 108.26189 20.284441 6642.3412 1.4110914e+09 0.097887524 0.025165659 108.31223 20.156207 6645.0281 1.3457971e+09 0.096686883 0.025464844 108.35908 20.034375 6647.7150 1.2904679e+09 0.095128220 0.026814223 108.41210 19.901191 6650.4019 1.2306391e+09 0.094015397 0.026347239 108.47009 19.758857 6653.0888 1.1706888e+09 0.093262998 0.027570986 108.52078 19.626900 6655.7757 1.1204099e+09 0.091079254 0.027930724 108.56764 19.500367 6658.4626 1.0675615e+09 0.088838972 0.030881443 108.62032 19.365571 6661.1495 1.0185211e+09 0.086735533 0.032611071 108.67831 19.223236 6663.8364 9.6942730e+08 0.084719117 0.032251439 108.72933 19.090803 6666.5232 9.2942165e+08 0.084158720 0.027010556 108.77619 18.964285 6669.2101 8.9124210e+08 0.082401173 0.028139874 108.82593 18.829987 6671.8970 8.4995905e+08 0.081985878 0.026878132 108.87865 18.687653 6674.5839 8.0769006e+08 0.080513251 0.029447373 108.93067 18.557517 6677.2708 7.7384453e+08 0.077964538 0.031973215 108.98221 18.435687 6679.9577 7.4590832e+08 0.078061099 0.029476357 109.03430 18.304407 6682.6446 7.1504964e+08 0.079029023 0.030917051 109.08701 18.162073 6685.3315 6.8164337e+08 0.078928720 0.033054990 109.13643 18.028648 6688.0184 6.4827449e+08 0.076426369 0.033789438 109.18329 17.902113 6690.7053 6.2267771e+08 0.074257161 0.033035036 109.23267 17.771050 6693.3922 5.9940896e+08 0.073084524 0.031469544 109.28539 17.633988 6696.0791 5.7208589e+08 0.072611198 0.029708643 109.33810 17.494115 6698.7660 5.4207525e+08 0.071313246 0.031269210 109.39082 17.351780 6701.4529 5.1413356e+08 0.069169732 0.032073939 109.43981 17.222491 6704.1398 4.9143973e+08 0.069170724 0.036246186 109.48667 17.100660 6706.8267 4.7385727e+08 0.068883466 0.039885144 109.53647 16.968534 6709.5136 4.5753514e+08 0.067879290 0.040805897 109.58919 16.826199 6712.2005 4.3872365e+08 0.065321967 0.042202128 109.64190 16.687055 6714.8873 4.1903425e+08 0.062819699 0.047370119 109.69462 16.549992 6717.5742 3.9735660e+08 0.060261516 0.049838749 109.74733 16.409196 6720.2611 3.7568531e+08 0.058809973 0.050389510 109.80005 16.266862 6722.9480 3.5904157e+08 0.058006451 0.049433195 109.84802 16.141148 6725.6349 3.4394853e+08 0.053224476 0.041179414 109.89489 16.019300 6728.3218 3.3148701e+08 0.052022429 0.040084219 109.94214 15.883574 6731.0087 3.1704850e+08 0.049989212 0.041767361 109.98959 15.741240 6733.6956 3.0244908e+08 0.048379321 0.047700951 110.04115 15.603020 6736.3825 2.8962274e+08 0.050077856 0.051801068 110.09386 15.465957 6739.0694 2.7924152e+08 0.051181840 0.062911477 110.14658 15.328894 6741.7563 2.6918201e+08 0.049221020 0.067915670 110.19929 15.191832 6744.4432 2.5846437e+08 0.044125748 0.078136203 110.24681 15.054770 6747.1301 2.4586966e+08 0.039238891 0.067316381 110.29473 14.917235 6749.8170 2.3224302e+08 0.037379177 0.072054245 110.34744 14.774901 6752.5039 2.2204310e+08 0.034085232 0.073551409 110.39914 14.633582 6755.1908 2.1140744e+08 0.032038790 0.074521709 110.44659 14.496519 6757.8777 2.0032811e+08 0.030293114 0.074076608 110.49560 14.359456 6760.5645 1.8694986e+08 0.031028538 0.077137840 110.54831 14.222394 6763.2514 1.7480111e+08 0.036545844 0.077203540 110.59893 14.085323 6765.9383 1.6984379e+08 0.039030410 0.079702490 110.64638 13.948240 6768.6252 1.7037343e+08 0.034557019 0.083105758 110.69383 13.811168 6771.3121 1.7077553e+08 0.029271823 0.090062184 110.74127 13.674105 6773.9990 1.6601332e+08 0.024287889 0.096579084 110.79191 13.537042 6776.6859 1.5590271e+08 0.019329560 0.10309598 110.84462 13.399980 6779.3728 1.4375949e+08 0.014371098 0.10961288 110.89360 13.262917 6782.0597 1.3438910e+08 0.0093878690 0.11612979 110.94105 13.125854 6784.7466 1.2869589e+08 0.0043863219 0.12264669 110.98849 12.988792 6787.4335 1.2531359e+08 -0.00061976994 0.12916359 111.03594 12.851729 6790.1204 1.2204214e+08 -0.0056149010 0.13568049 111.08338 12.714667 6792.8073 1.1897644e+08 -0.010579698 0.14219739 111.13105 12.577262 6795.4942 1.1416920e+08 -0.015517084 0.14871429 111.19130 12.420616 6798.1811 1.0931456e+08 -0.020423097 0.15523119 111.24697 12.270974 6800.8680 1.0489423e+08 -0.025309409 0.16174809 111.29442 12.133912 6803.5549 97530938. -0.030243713 0.16826499 111.34186 11.996850 6806.2418 92974741. -0.035136779 0.17478189 111.38931 11.859786 6808.9286 89606191. -0.040003500 0.18129879 111.44057 11.711682 6811.6155 87410932. -0.044832662 0.18781569 111.49480 11.555036 6814.3024 87154863. -0.049595353 0.19433259 111.54289 11.416093 6816.9893 84247571. -0.054419079 0.20084949 111.59039 11.278917 6819.6762 79427280. -0.059296749 0.20736639 111.64461 11.128314 6822.3631 74599280. -0.064178882 0.21388329 111.69648 10.982394 6825.0500 72472877. -0.068952539 0.22040019 111.74393 10.845312 6827.7369 70667523. -0.073698979 0.22691709 111.79443 10.699413 6830.4238 68368917. -0.078456700 0.23343399 111.84866 10.542765 6833.1107 65916243. -0.083218470 0.23995089 111.89752 10.401606 6835.7976 63844492. -0.087960550 0.24646779 111.94496 10.264544 6838.4845 61827576. -0.092695986 0.25298469 111.99308 10.115361 6841.1714 62764461. -0.097269118 0.25950159 112.04269 9.9633297 6843.8583 58057962. -0.10217972 0.26601849 112.09692 9.8066835 6846.5452 56332047. -0.10693584 0.27253539 112.15114 9.6534974 6849.2321 54662740. -0.11170883 0.27905229 112.20536 9.5028761 6851.9190 51507018. -0.11663088 0.28556919 112.25339 9.3646537 6854.6059 47976803. -0.12164842 0.29208609 112.30096 9.2272461 6857.2927 43744891. -0.12686964 0.29860299 112.35518 9.0706005 6859.9796 41528939. -0.13201806 0.30511989 112.40724 8.9161102 6862.6665 40157268. -0.13724196 0.31163679 112.45544 8.7654890 6865.3534 42464223. -0.14210755 0.31815369 112.50785 8.6106623 6868.0403 42416384. -0.14765290 0.32467059 112.56207 8.4542462 6870.7272 41354591. -0.15394743 0.33118749 112.61630 8.3036249 6873.4141 40966916. -0.16119065 0.33770439 112.66824 8.1530033 6876.1010 38966933. -0.17218112 0.34422129 112.71644 8.0023810 6878.7879 39349766. -0.20897903 0.35073819 112.76896 7.8474490 6881.4748 42370601. -0.18461567 0.35725509 112.82282 7.6911807 6884.1617 41518049. -0.13573468 0.36377199 112.87102 7.5405594