# # 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 = 40.008471 km # Date (UTC) = 2011-11-17T09:53:05.092 # Date (julian) = 2455882.91186449 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6503.6482 1.5773818e+11 0.063040533 0.033383320 -22.115817 62.177091 6505.7308 1.3464710e+11 0.071435036 0.034011306 -22.364808 62.051805 6507.8133 1.1412392e+11 0.079844025 0.034639292 -22.604527 61.926498 6509.8959 9.7349575e+10 0.088384760 0.035267278 -22.833637 61.806736 6511.9784 8.4593629e+10 0.097257962 0.035895264 -23.039104 61.699332 6514.0609 7.5072392e+10 0.10661095 0.036523250 -23.249417 61.588917 6516.1435 6.6851930e+10 0.11632015 0.037151236 -23.483689 61.463609 6518.2260 5.8984814e+10 0.12622063 0.037779222 -23.716147 61.338301 6520.3086 5.1645385e+10 0.13630098 0.038407207 -23.944969 61.212994 6522.3911 4.5612052e+10 0.14572318 0.039019671 -24.157533 61.094268 6524.4737 4.0942361e+10 0.15115691 0.039595233 -24.353661 60.982194 6526.5562 3.7063901e+10 0.15555203 0.040251211 -24.557545 60.865411 6528.6388 3.3562277e+10 0.15952338 0.041949211 -24.775471 60.740104 6530.7213 3.0392448e+10 0.16298448 0.044838508 -24.979625 60.621682 6532.8038 2.7764581e+10 0.16685184 0.047355722 -25.171085 60.509608 6534.8864 2.5561888e+10 0.16897822 0.048192516 -25.370492 60.392529 6536.9689 2.3537080e+10 0.17000566 0.048657434 -25.582927 60.267247 6539.0515 2.1586962e+10 0.17048613 0.049705947 -25.778900 60.149138 6541.1340 1.9877095e+10 0.17050858 0.051283064 -25.961019 60.037066 6543.2166 1.8556686e+10 0.16978021 0.051438734 -26.141262 59.924993 6545.2991 1.7454952e+10 0.16860519 0.052458247 -26.318712 59.812919 6547.3817 1.6378526e+10 0.16699312 0.053432503 -26.503856 59.695986 6549.4642 1.5229983e+10 0.16518167 0.054439344 -26.710886 59.565231 6551.5468 1.4123534e+10 0.16373229 0.055427669 -26.903371 59.442409 6553.6293 1.3137780e+10 0.16207277 0.055018728 -27.076151 59.330335 6555.7118 1.2250660e+10 0.16034406 0.054255248 -27.255545 59.212970 6557.7944 1.1393838e+10 0.15893348 0.053368184 -27.451678 59.082214 6559.8769 1.0552736e+10 0.15704961 0.052288200 -27.635264 58.957731 6561.9595 9.8048051e+09 0.15483277 0.050899873 -27.803374 58.840988 6564.0420 9.1997029e+09 0.15234136 0.048752554 -27.970054 58.725676 6566.1246 8.6798390e+09 0.15062537 0.047112418 -28.133495 58.613603 6568.2071 8.2049929e+09 0.14947548 0.045581279 -28.296935 58.501531 6570.2897 7.7997583e+09 0.14824722 0.044797524 -28.460375 58.389457 6572.3722 7.4056333e+09 0.14666315 0.044017006 -28.624324 58.276820 6574.4547 6.9578996e+09 0.14461876 0.042636593 -28.809560 58.140616 6576.5373 6.4945383e+09 0.14259796 0.040752962 -28.989825 58.008068 6578.6198 6.0571597e+09 0.14009478 0.037670824 -29.148596 57.891325 6580.7024 5.7038166e+09 0.13762854 0.035871653 -29.307150 57.774798 6582.7849 5.4304711e+09 0.13536356 0.035080195 -29.461250 57.662726 6584.8675 5.1588634e+09 0.13282950 0.034042968 -29.615351 57.550654 6586.9500 4.8641761e+09 0.13029432 0.033159016 -29.787769 57.416744 6589.0326 4.5623944e+09 0.12801916 0.032981384 -29.960705 57.281891 6591.1151 4.2704800e+09 0.12561645 0.029072029 -30.114806 57.165149 6593.1976 4.0352971e+09 0.12379911 0.026918468 -30.268906 57.048406 6595.2802 3.8400716e+09 0.12160238 0.025652628 -30.414340 56.935996 6597.3627 3.6626618e+09 0.11946520 0.025608261 -30.559100 56.823922 6599.4453 3.4861258e+09 0.11821520 0.024956512 -30.703862 56.708175 6601.5278 3.3138536e+09 0.11809541 0.027294267 -30.848623 56.591432 6603.6104 3.1647449e+09 0.11682053 0.026301935 -30.993384 56.474689 6605.6929 3.0215528e+09 0.11629909 0.027246346 -31.138145 56.357946 6607.7755 2.8730392e+09 0.11439168 0.024175749 -31.292299 56.231416 6609.8580 2.7164831e+09 0.11152041 0.023960800 -31.455713 56.095239 6611.9406 2.5568048e+09 0.10913921 0.024358662 -31.603552 55.972040 6614.0231 2.4116521e+09 0.10814232 0.023924580 -31.743643 55.855297 6616.1056 2.2901809e+09 0.10649166 0.023298879 -31.881276 55.738554 6618.1882 2.1822226e+09 0.10567958 0.023912899 -32.016697 55.621811 6620.2707 2.0784358e+09 0.10471136 0.024854440 -32.152118 55.505068 6622.3533 1.9841234e+09 0.10308319 0.024663962 -32.287541 55.388325 6624.4358 1.8950948e+09 0.10102876 0.025095602 -32.421826 55.270446 6626.5184 1.8108769e+09 0.099067090 0.025930458 -32.552578 55.149034 6628.6009 1.7337737e+09 0.097232365 0.025947071 -32.683329 55.028098 6630.6835 1.6550468e+09 0.095170747 0.025929986 -32.814083 54.911355 6632.7660 1.5808383e+09 0.093298628 0.026124195 -32.944836 54.794613 6634.8485 1.5111694e+09 0.091530873 0.026388740 -33.071103 54.677870 6636.9311 1.4447395e+09 0.089882114 0.026188172 -33.197185 54.561127 6639.0136 1.3718972e+09 0.088884338 0.025623202 -33.344944 54.428444 6641.0962 1.2911639e+09 0.089749349 0.025148627 -33.497493 54.292239 6643.1787 1.2146464e+09 0.089426658 0.025219604 -33.619417 54.170583 6645.2613 1.1424173e+09 0.088589419 0.025574079 -33.740828 54.049169 6647.3438 1.0822017e+09 0.087558311 0.026618800 -33.866173 53.931689 6649.4264 1.0297645e+09 0.086574900 0.027045973 -33.992256 53.814946 6651.5089 9.8044323e+08 0.086143469 0.026874167 -34.115067 53.698203 6653.5914 9.3409152e+08 0.085589560 0.027827634 -34.236480 53.581460 6655.6740 8.9039009e+08 0.083998946 0.027888712 -34.355282 53.462107 6657.7565 8.5090160e+08 0.082399001 0.029778671 -34.472025 53.340695 6659.8391 8.1369317e+08 0.080891816 0.031659565 -34.588768 53.221234 6661.9216 7.7984193e+08 0.079308284 0.033004355 -34.705510 53.104491 6664.0042 7.4246216e+08 0.077851241 0.032190820 -34.822253 52.986458 6666.0867 7.0518104e+08 0.077855852 0.026925493 -34.938997 52.865043 6668.1693 6.7231697e+08 0.076922756 0.027620560 -35.055740 52.744259 6670.2518 6.4226547e+08 0.076302060 0.027211974 -35.172483 52.627516 6672.3344 6.1451121e+08 0.075807589 0.027073396 -35.289217 52.510764 6674.4169 5.9113357e+08 0.074510315 0.029306471 -35.401329 52.389392 6676.4994 5.6560684e+08 0.072090085 0.032035611 -35.513401 52.267981 6678.5820 5.3557843e+08 0.071112330 0.030547356 -35.641391 52.129327 6680.6645 5.0393140e+08 0.071718377 0.029584917 -35.771764 51.988085 6682.7471 4.7248220e+08 0.072360145 0.030995338 -35.879167 51.871342 6684.8296 4.4668554e+08 0.072337659 0.032696192 -35.986570 51.754599 6686.9122 4.2920686e+08 0.070840110 0.034291797 -36.098061 51.633769 6688.9947 4.0760298e+08 0.068091109 0.034014803 -36.210135 51.512355 6691.0773 3.8948983e+08 0.067213936 0.032983035 -36.318783 51.394367 6693.1598 3.7294401e+08 0.066329868 0.031549267 -36.426186 51.277624 6695.2423 3.5147112e+08 0.065785962 0.029814958 -36.530824 51.158117 6697.3249 3.3153575e+08 0.065097754 0.030132381 -36.633557 51.036706 6699.4074 3.1141496e+08 0.063631729 0.031214486 -36.736290 50.915293 6701.4900 2.9369645e+08 0.061747143 0.032128386 -36.839024 50.793880 6703.5725 2.8081616e+08 0.061562875 0.035107874 -36.941753 50.673916 6705.6551 2.6536879e+08 0.061398573 0.037833188 -37.044470 50.557193 6707.7376 2.5006395e+08 0.060816001 0.040081164 -37.150054 50.436300 6709.8202 2.3634940e+08 0.059552990 0.040610882 -37.269913 50.294648 6711.9027 2.2176799e+08 0.057247173 0.041719263 -37.384089 50.159711 6713.9852 2.0912549e+08 0.054863687 0.047250057 -37.486824 50.038298 6716.0678 1.9641457e+08 0.052930726 0.048501214 -37.588669 49.916885 6718.1503 1.8860531e+08 0.050568903 0.050046555 -37.686732 49.795473 6720.2329 1.8021741e+08 0.049442923 0.050392783 -37.784796 49.674290 6722.3154 1.7284627e+08 0.048943221 0.050215253 -37.882861 49.557547 6724.3980 1.6352863e+08 0.045816851 0.046603330 -37.980926 49.440804 6726.4805 1.5764878e+08 0.042682038 0.040955701 -38.074752 49.319823 6728.5631 1.4991229e+08 0.042066008 0.040426144 -38.168144 49.198409 6730.6456 1.4132097e+08 0.040395639 0.041264110 -38.261539 49.076997 6732.7282 1.3403256e+08 0.039060082 0.043874259 -38.354933 48.955585 6734.8107 1.2422758e+08 0.038803682 0.049304822 -38.461454 48.821533 6736.8932 1.1755996e+08 0.040408309 0.053731961 -38.575865 48.679881 6738.9758 1.0928041e+08 0.041052396 0.062693248 -38.670009 48.557884 6741.0583 1.0396892e+08 0.039851009 0.065925056 -38.758735 48.441141 6743.1409 98076714. 0.036118993 0.071997790 -38.850484 48.321373 6745.2234 95213011. 0.033117644 0.078660811 -38.943879 48.199960 6747.3060 92420880. 0.028328204 0.067255829 -39.034909 48.078547 6749.3885 87988586. 0.026741032 0.072171558 -39.123633 47.957135 6751.4711 84129676. 0.022449842 0.073910836 -39.217751 47.828342 6753.5536 75330547. 0.016233431 0.074768843 -39.321265 47.686689 6755.6361 69009135. -0.010317103 0.074326436 -39.416953 47.555747 6757.7187 65653239. 0.0077643005 0.074559022 -39.505679 47.434335 6759.8012 65328817. 0.052846517 0.076013306 -39.594405 47.312922