# # 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 = 46.746737 km # Date (UTC) = 2013-02-03T09:38:35.495 # Date (julian) = 2456326.90179971 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6492.2924 9.7321368e+10 0.020299159 0.029958995 -1.1245153 69.308689 6494.0603 8.3717888e+10 0.025009250 0.030492109 -1.8605137 69.106195 6495.8282 7.5467034e+10 0.029470848 0.031025224 -2.5042692 68.921226 6497.5962 7.0080268e+10 0.034019575 0.031558338 -3.3304238 68.670751 6499.3641 6.4896036e+10 0.038731548 0.032091452 -3.9842688 68.466274 6501.1320 5.9920340e+10 0.043711651 0.032624567 -4.5965839 68.271997 6502.8999 5.5020288e+10 0.049021416 0.033157681 -5.1934919 68.077762 6504.6679 5.0841613e+10 0.054913947 0.033690795 -5.7793660 67.877524 6506.4358 4.7533880e+10 0.061686627 0.034223910 -6.3568728 67.679286 6508.2037 4.4627912e+10 0.069383927 0.034757024 -6.9258635 67.480510 6509.9717 4.2075851e+10 0.078079016 0.035290138 -7.4825586 67.273239 6511.7396 3.9461052e+10 0.087643850 0.035823253 -8.0253333 67.063493 6513.5075 3.6873944e+10 0.098043935 0.036356367 -8.5617363 66.857763 6515.2755 3.4082452e+10 0.10903881 0.036889481 -9.0951337 66.645034 6517.0434 3.1729779e+10 0.12101921 0.037422595 -9.6012638 66.436681 6518.8113 2.9799396e+10 0.13385016 0.037955710 -9.9758231 66.277149 6520.5792 2.8058163e+10 0.14714828 0.038488824 -10.430636 66.083432 6522.3472 2.6210830e+10 0.15955272 0.039008161 -10.924946 65.870684 6524.1151 2.4311816e+10 0.16711423 0.039467849 -11.353055 65.680129 6525.8830 2.2587581e+10 0.17237951 0.039681437 -11.718103 65.511478 6527.6510 2.1318566e+10 0.17732552 0.041189072 -12.189768 65.289520 6529.4189 2.0200373e+10 0.17931558 0.042903029 -12.542037 65.120623 6531.1868 1.8772715e+10 0.18018116 0.045500587 -12.938992 64.925506 6532.9547 1.7600253e+10 0.18193965 0.047481778 -13.334727 64.727638 6534.7227 1.6379289e+10 0.18187430 0.048146716 -13.667767 64.561114 6536.4906 1.5270280e+10 0.18044104 0.048229453 -14.101756 64.339528 6538.2585 1.4287145e+10 0.18016857 0.049282571 -14.431082 64.161803 6540.0265 1.3292212e+10 0.17988887 0.050866601 -14.746935 63.988369 6541.7944 1.2573550e+10 0.17758913 0.051068916 -15.059071 63.814961 6543.5623 1.1886909e+10 0.17579885 0.051529476 -15.371295 63.641503 6545.3302 1.1143727e+10 0.17448968 0.052458526 -15.733747 63.434100 6547.0982 1.0355028e+10 0.17307197 0.053324698 -16.081114 63.232143 6548.8661 9.5628970e+09 0.17103784 0.053926294 -16.379004 63.058688 6550.6340 8.9284681e+09 0.16977733 0.055144116 -16.670326 62.885282 6552.4020 8.4243343e+09 0.16837829 0.055485593 -16.957378 62.711843 6554.1699 7.9826123e+09 0.16591797 0.054835945 -17.240585 62.537120 6555.9378 7.5634280e+09 0.16349392 0.054065372 -17.518118 62.356725 6557.7057 7.1634735e+09 0.16148904 0.053423742 -17.795589 62.181508 6559.4737 6.8024954e+09 0.15841427 0.052333716 -18.070987 62.006010 6561.2416 6.4648565e+09 0.15485834 0.051253623 -18.341581 61.825612 6563.0095 6.1406940e+09 0.15186763 0.049917337 -18.606156 61.645262 6564.7775 5.8197569e+09 0.14902748 0.048419250 -18.869767 61.467786 6566.5454 5.5039062e+09 0.14650287 0.046874357 -19.133423 61.294328 6568.3133 5.1874011e+09 0.14482144 0.045483644 -19.383476 61.114156 6570.0813 4.8637822e+09 0.14366613 0.044883852 -19.633221 60.933784 6571.8492 4.5917193e+09 0.14200755 0.044271347 -19.878400 60.756201 6573.6171 4.3847837e+09 0.13985460 0.043162266 -20.078211 60.606342 6575.3850 4.2183563e+09 0.13789056 0.041988393 -20.290496 60.447631 6577.1530 4.0594507e+09 0.13562560 0.039980097 -20.533266 60.267289 6578.9209 3.8654917e+09 0.13290269 0.037195411 -20.770208 60.086900 6580.6888 3.6355196e+09 0.13096774 0.035884179 -21.006083 59.906525 6582.4568 3.4262557e+09 0.12925185 0.035169499 -21.241915 59.726184 6584.2247 3.2646461e+09 0.12704773 0.034393117 -21.426881 59.575280 6585.9926 3.1270177e+09 0.12484130 0.033177202 -21.616406 59.420421 6587.7605 3.0104409e+09 0.12316636 0.033326876 -21.838367 59.240076 6589.5285 2.8926387e+09 0.12085377 0.031997539 -22.028292 59.081752 6591.2964 2.7843773e+09 0.11808480 0.028867457 -22.205902 58.931893 6593.0643 2.6844851e+09 0.11570407 0.027042414 -22.418016 58.747535 6594.8323 2.5656100e+09 0.11311503 0.025715654 -22.633074 58.563552 6596.6002 2.4382684e+09 0.11025100 0.025724545 -22.846479 58.384356 6598.3681 2.3348553e+09 0.10800969 0.025231414 -23.018540 58.234497 6600.1360 2.2397744e+09 0.10686460 0.025269559 -23.197479 58.075794 6601.9040 2.1392348e+09 0.10575302 0.027471411 -23.398691 57.888459 6603.6719 2.0278724e+09 0.10415296 0.026265509 -23.572293 57.730936 6605.4398 1.9290145e+09 0.10369770 0.027034027 -23.738762 57.581115 6607.2078 1.8623849e+09 0.10239164 0.025296745 -23.899763 57.431257 6608.9757 1.7939651e+09 0.099830810 0.023706574 -24.067071 57.274255 6610.7436 1.7158996e+09 0.097563367 0.024713490 -24.261286 57.086975 6612.5115 1.6313315e+09 0.096528511 0.023938542 -24.426429 56.927730 6614.2795 1.5581047e+09 0.095716436 0.023747943 -24.581838 56.777871 6616.0474 1.5164115e+09 0.094279970 0.023289739 -24.731988 56.628012 6617.8153 1.4613103e+09 0.093800833 0.023709571 -24.887302 56.472698 6619.5833 1.3925909e+09 0.093256759 0.024666646 -25.074580 56.285419 6621.3512 1.3216149e+09 0.092497985 0.024973042 -25.235512 56.124486 6623.1191 1.2522814e+09 0.091331812 0.024535959 -25.385372 55.974627 6624.8871 1.2060277e+09 0.090119728 0.025337144 -25.530222 55.824768 6626.6550 1.1658523e+09 0.088421770 0.025756397 -25.674531 55.674350 6628.4229 1.1265310e+09 0.087265564 0.025874801 -25.818840 55.518941 6630.1908 1.0783196e+09 0.086055474 0.025928772 -25.971848 55.354004 6631.9588 1.0221598e+09 0.084611689 0.026028157 -26.145254 55.166725 6633.7267 9.6320991e+08 0.083473952 0.026279127 -26.288957 55.011526 6635.4946 9.0964639e+08 0.082340239 0.026473964 -26.427404 54.861361 6637.2626 8.7027495e+08 0.081168962 0.026032820 -26.560580 54.705989 6639.0305 8.3429991e+08 0.080126193 0.025617179 -26.693764 54.552015 6640.7984 8.0178514e+08 0.080657982 0.025172965 -26.826973 54.402155 6642.5663 7.7218815e+08 0.080419775 0.025174872 -26.960182 54.252295 6644.3343 7.3930486e+08 0.079633052 0.025379734 -27.093389 54.102436 6646.1022 7.0767892e+08 0.078987602 0.025973049 -27.226597 53.948969 6647.8701 6.7858509e+08 0.078444966 0.026895907 -27.359804 53.793561 6649.6381 6.5045912e+08 0.077873887 0.026754156 -27.488278 53.642891 6651.4060 6.2544666e+08 0.077628598 0.026795296 -27.615650 53.492810 6653.1739 5.9522538e+08 0.077510149 0.027614457 -27.737757 53.337401 6654.9418 5.6764595e+08 0.076669499 0.027634991 -27.861221 53.183350 6656.7098 5.4085267e+08 0.075183689 0.028646382 -27.988878 53.033491 6658.4777 5.1809241e+08 0.074084032 0.030908295 -28.114065 52.881190 6660.2456 4.9686375e+08 0.073076395 0.031849265 -28.236143 52.725817 6662.0136 4.7403556e+08 0.071904190 0.033036662 -28.354684 52.570420 6663.7815 4.5068025e+08 0.070858709 0.032266643 -28.471242 52.415010 6665.5494 4.2969903e+08 0.070880505 0.027646887 -28.592455 52.264258 6667.3173 4.1386627e+08 0.070364338 0.027220025 -28.714354 52.114193 6669.0853 3.9373027e+08 0.069256541 0.028268117 -28.830883 51.958822 6670.8532 3.7374077e+08 0.069347724 0.026933355 -28.947419 51.804747 6672.6211 3.5538749e+08 0.068961443 0.027239621 -29.063975 51.654888 6674.3891 3.3395303e+08 0.067893033 0.029282993 -29.178126 51.502623 6676.1570 3.1567645e+08 0.065818665 0.031814906 -29.289132 51.347215 6677.9249 2.9618424e+08 0.064886999 0.031043344 -29.400139 51.191805 6679.6929 2.8413842e+08 0.064593199 0.029695230 -29.511146 51.036395 6681.4608 2.7082703e+08 0.065109983 0.030010862 -29.622130 50.881017 6683.2287 2.5917059e+08 0.065370017 0.031523758 -29.733110 50.725800 6684.9966 2.4102369e+08 0.065138902 0.032704667 -29.844117 50.575941 6686.7646 2.2133054e+08 0.063711328 0.034205922 -29.949889 50.430689 6688.5325 2.0935404e+08 0.061329590 0.033908109 -30.037767 50.301186 6690.3004 1.9591966e+08 0.059970575 0.033081435 -30.126772 50.170022 6692.0684 1.8949511e+08 0.058880894 0.032685952 -30.232202 50.014651 6693.8363 1.8551371e+08 0.057870390 0.031317192 -30.337639 49.860725 6695.6042 1.8299148e+08 0.057555314 0.029748487 -30.443095 49.710866 6697.3721 1.8234407e+08 0.056800002 0.030138360 -30.548552 49.558451 6699.1401 1.7697528e+08 0.055412108 0.031461186 -30.654008 49.403040 6700.9080 1.7383139e+08 0.053695065 0.031341207 -30.755808 49.247631 6702.6759 1.6689287e+08 0.052968885 0.033416463 -30.855714 49.092223 6704.4439 1.6361657e+08 0.052938729 0.036395511 -30.941333 48.959039 6706.2118 1.6456608e+08 0.052744416 0.038815004 -31.024567 48.829563 6707.9797 1.6238470e+08 0.052353003 0.040046483 -31.119379 48.682077 6709.7476 1.6823636e+08 0.051510412 0.040657004 -31.219285 48.526666 6711.5156 1.6829238e+08 0.049813374 0.041278815 -31.314236 48.376212 6713.2835 1.7073286e+08 0.048236705 0.044711996 -31.409096 48.225852 6715.0514 1.7154824e+08 0.046715392 0.047431192 -31.508978 48.070478 6716.8194 1.7217868e+08 0.045094623 0.049608205 -31.602718 47.922581 6718.5873 1.7072534e+08 0.043277935 0.050727075 -31.681345 47.793079 6720.3552 1.6264435e+08 0.042951658 0.050378608 -31.761966 47.660292 6722.1231 1.5332490e+08 0.042714971 0.050452960 -31.856322 47.504883 6723.8911 1.4176731e+08 0.040799638 0.049865913 -31.950677 47.349474 6725.6590 1.3320234e+08 0.037125778 0.041164370 -32.045033 47.194064 6727.4269 1.2722032e+08 0.036189273 0.040391585 -32.136472 47.041578 6729.1949 1.1864940e+08 0.035667641 0.040915545 -32.225256 46.891755 6730.9628 1.1422270e+08 0.034333596 0.041699011 -32.303377 46.756589 6732.7307 1.0734180e+08 0.033319748 0.043874733 -32.377378 46.627087 6734.4987 1.0098865e+08 0.032997068 0.049323597 -32.459658 46.483098 6736.2666 97576096. 0.034734271 0.051362831 -32.548464 46.327689 6738.0345 93597197. 0.035998075 0.057511084 -32.637269 46.172278 6739.8024 91723816. 0.036296744 0.063808585 -32.726074 46.016868 6741.5704 87574199. 0.034985122 0.067385414 -32.800716 45.886245 6743.3383 83610690. 0.031784608 0.073329583 -32.874702 45.756769 6745.1062 81075538. 0.029770155 0.078611543 -32.956041 45.606723 6746.8742 78896961. 0.026032866 0.068824247 -33.039297 45.451314 6748.6421 77818669. 0.026056598 0.070394927 -33.128055 45.301409 6750.4100 76200554. 0.023569069 0.072704246 -33.213172 45.155414 6752.1779 77324516. 0.021240974 0.073928564 -33.282547 45.025913 6753.9459 74908004. 0.020250952 0.076038302 -33.352306 44.895693 6755.7138 69306792. 0.017639271 0.074292389 -33.435543 44.740319 6757.4817 63593323. 0.015200336 0.075278136 -33.517531 44.584936 6759.2497 59476864. 0.014343069 0.075880201 -33.595236 44.429528 6761.0176 58953760. 0.012610248 0.077969678 -33.669410 44.285102 6762.7855 57670413. 0.013485409 0.076783743 -33.738787 44.155600 6764.5534 53289541. 0.0056610314 0.079509800 -33.810344 44.019315 6766.3214 51935145. -0.045841765 0.080440702 -33.888048 43.863905 6768.0893 52378136. -0.0056874855 0.081177361 -33.968297 43.711065 6769.8572 53630444. 0.077811951 0.086533427 -34.051533 43.561242