# # 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 = 42.571665 km # Date (UTC) = 2013-02-02T10:29:33.378 # Date (julian) = 2456325.93719187 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6495.3913 8.3242934e+10 0.020553553 0.030893472 -19.379185 67.225298 6497.1130 7.7806690e+10 0.027104645 0.031412630 -19.919713 67.027102 6498.8346 7.2440206e+10 0.033873734 0.031931788 -20.454667 66.828938 6500.5563 6.7532776e+10 0.041019317 0.032450945 -20.977119 66.626252 6502.2779 6.3191232e+10 0.048629682 0.032970103 -21.437809 66.441932 6503.9995 5.9307079e+10 0.056689847 0.033489260 -21.816070 66.293329 6505.7212 5.5697159e+10 0.065184260 0.034008418 -22.301088 66.091365 6507.4428 5.2584998e+10 0.074228588 0.034527575 -22.796473 65.884203 6509.1645 4.9085859e+10 0.083491358 0.035046733 -23.197039 65.708134 6510.8861 4.5605689e+10 0.093094692 0.035565891 -23.578198 65.536567 6512.6078 4.2474096e+10 0.10313595 0.036085048 -24.034344 65.333837 6514.3294 3.9768682e+10 0.11361857 0.036604206 -24.378832 65.171726 6516.0511 3.7285868e+10 0.12444897 0.037123363 -24.788960 64.981677 6517.7727 3.5088695e+10 0.13560051 0.037642521 -25.178579 64.797429 6519.4943 3.3178026e+10 0.14693932 0.038161679 -25.509367 64.635121 6521.2160 3.1044958e+10 0.15815376 0.038680836 -25.833687 64.466204 6522.9376 2.9004776e+10 0.16666001 0.039162783 -26.212330 64.271364 6524.6593 2.7041583e+10 0.17290135 0.039661174 -26.589258 64.078891 6526.3809 2.5100892e+10 0.17660766 0.040067447 -26.906821 63.916729 6528.1026 2.3360037e+10 0.18042071 0.041523857 -27.211433 63.748093 6529.8242 2.1932113e+10 0.18317173 0.043548695 -27.515441 63.582431 6531.5459 2.0644967e+10 0.18394897 0.046023194 -27.819393 63.420309 6533.2675 1.9532809e+10 0.18460128 0.047633271 -28.116709 63.251414 6534.9892 1.8415039e+10 0.18450586 0.048221263 -28.410458 63.082523 6536.7108 1.7228381e+10 0.18284741 0.048426474 -28.704211 62.911539 6538.4324 1.6014826e+10 0.18189408 0.049367260 -29.082623 62.686294 6540.1541 1.4879302e+10 0.18121582 0.050926899 -29.373173 62.513348 6541.8757 1.3874531e+10 0.17881807 0.051042535 -29.626685 62.357153 6543.5974 1.2958647e+10 0.17676273 0.051538679 -29.842886 62.216624 6545.3190 1.2274845e+10 0.17517363 0.052458425 -30.091319 62.059175 6547.0407 1.1652448e+10 0.17338128 0.053302832 -30.360727 61.889515 6548.7623 1.1031122e+10 0.17095930 0.053895301 -30.624237 61.713843 6550.4840 1.0429225e+10 0.16940208 0.055106540 -30.887748 61.542471 6552.2056 9.8517295e+09 0.16766089 0.055535015 -31.150189 61.372504 6553.9273 9.3064715e+09 0.16494139 0.054868948 -31.406867 61.196880 6555.6489 8.7966905e+09 0.16269154 0.054308133 -31.659028 61.021224 6557.3705 8.3408683e+09 0.16039365 0.053633848 -31.898149 60.852449 6559.0922 7.9061328e+09 0.15713933 0.052376776 -32.092684 60.711951 6560.8138 7.4687988e+09 0.15397630 0.051540531 -32.304047 60.559300 6562.5355 7.0620332e+09 0.15117363 0.050370373 -32.547288 60.383627 6564.2571 6.7090071e+09 0.14784959 0.048655067 -32.784620 60.207997 6565.9788 6.3778198e+09 0.14508497 0.047206988 -33.002843 60.045887 6567.7004 6.0715466e+09 0.14333639 0.046024966 -33.192018 59.905357 6569.4221 5.7806640e+09 0.14136511 0.044879894 -33.402885 59.746029 6571.1437 5.5012507e+09 0.13973149 0.044464026 -33.632238 59.569988 6572.8654 5.2370690e+09 0.13816600 0.043734590 -33.855143 59.387612 6574.5870 4.9697670e+09 0.13617210 0.042573071 -34.052462 59.229273 6576.3086 4.7088676e+09 0.13408261 0.041016137 -34.230827 59.088741 6578.0303 4.4837461e+09 0.13203700 0.038601784 -34.436607 58.922756 6579.7519 4.2965453e+09 0.12975096 0.036657125 -34.642243 58.754357 6581.4736 4.1130556e+09 0.12748451 0.035453202 -34.815162 58.608456 6583.1952 3.9244148e+09 0.12569905 0.034922852 -35.002468 58.448172 6584.9169 3.7503711e+09 0.12384679 0.034016057 -35.211926 58.265742 6586.6385 3.5959659e+09 0.12169976 0.033163042 -35.383062 58.121627 6588.3602 3.4534897e+09 0.11989716 0.033259654 -35.550240 57.980787 6590.0818 3.3069686e+09 0.11780572 0.030909894 -35.712390 57.834851 6591.8035 3.1627824e+09 0.11526072 0.028295308 -35.883178 57.681141 6593.5251 3.0130136e+09 0.11300650 0.026614039 -36.085877 57.498711 6595.2467 2.8624372e+09 0.11061661 0.025649159 -36.254866 57.343056 6596.9684 2.7171471e+09 0.10814067 0.025722871 -36.411574 57.197156 6598.6900 2.5897796e+09 0.10608261 0.025077719 -36.568317 57.055992 6600.4117 2.4938257e+09 0.10537927 0.025836211 -36.724889 56.915285 6602.1333 2.3941253e+09 0.10439586 0.027402860 -36.876229 56.769352 6603.8550 2.2909872e+09 0.10280827 0.026157134 -37.033222 56.616780 6605.5766 2.1801906e+09 0.10247847 0.027148777 -37.215598 56.434404 6607.2983 2.0650039e+09 0.10121634 0.025118043 -37.376196 56.277598 6609.0199 1.9519034e+09 0.098854275 0.023711844 -37.527536 56.131662 6610.7416 1.8481906e+09 0.096751419 0.024711514 -37.674274 55.985726 6612.4632 1.7616176e+09 0.095730703 0.023974669 -37.820190 55.839769 6614.1848 1.6797321e+09 0.095000290 0.023813144 -37.960701 55.688478 6615.9065 1.6091028e+09 0.093822290 0.023279422 -38.101203 55.537984 6617.6281 1.5447743e+09 0.093351933 0.023647505 -38.241733 55.392048 6619.3498 1.4856092e+09 0.092785886 0.024610310 -38.382263 55.246113 6621.0714 1.4235307e+09 0.092134281 0.025065773 -38.522792 55.100177 6622.7931 1.3658530e+09 0.091032501 0.024546904 -38.660887 54.954241 6624.5147 1.3133777e+09 0.089683712 0.025137833 -38.796013 54.808305 6626.2364 1.2598672e+09 0.088547636 0.026289761 -38.931119 54.662389 6627.9580 1.2134382e+09 0.087206316 0.025686873 -39.066212 54.516489 6629.6796 1.1754653e+09 0.086002579 0.025986222 -39.197277 54.366509 6631.4013 1.1443532e+09 0.084355568 0.025971529 -39.326998 54.215169 6633.1229 1.1020114e+09 0.083220665 0.026173717 -39.456720 54.068692 6634.8446 1.0323748e+09 0.082100260 0.026388451 -39.586439 53.922758 6636.5662 9.6068481e+08 0.080878273 0.026329862 -39.716128 53.776857 6638.2879 9.0374664e+08 0.080079164 0.025659100 -39.844747 53.629873 6640.0095 8.5740599e+08 0.080113084 0.025269487 -39.969063 53.478532 6641.7312 8.3170810e+08 0.080112920 0.025150783 -40.093379 53.329077 6643.4528 7.9502492e+08 0.079533635 0.025260988 -40.217694 53.183141 6645.1745 7.6596274e+08 0.078890698 0.025533411 -40.341994 53.034528 6646.8961 7.0537743e+08 0.078267350 0.026383999 -40.466280 52.883224 6648.6177 6.4770399e+08 0.077732048 0.027377807 -40.587081 52.735400 6650.3394 5.9850174e+08 0.077752558 0.026332934 -40.705992 52.589465 6652.0610 5.6934825e+08 0.077533540 0.027267315 -40.824903 52.439214 6653.7827 5.6078180e+08 0.077079745 0.027925272 -40.943814 52.287872 6655.5043 5.2028859e+08 0.076209865 0.027818606 -41.062723 52.141655 6657.2260 4.7551120e+08 0.075306908 0.029163235 -41.181101 51.995194 6658.9476 4.2259283e+08 0.074722174 0.031741702 -41.294581 51.843891 6660.6693 4.0146085e+08 0.074097970 0.032234328 -41.403389 51.699930 6662.3909 4.0272369e+08 0.073036374 0.032824947 -41.497973 51.578320 6664.1126 4.3730014e+08 0.071485634 0.031794250 -41.593069 51.455907 6665.8342 4.7012307e+08 0.071268645 0.027180262 -41.706574 51.304568 6667.5558 4.9514976e+08 0.070495029 0.027307630 -41.820074 51.154190 6669.2775 4.9304585e+08 0.069531212 0.028070699 -41.933552 51.008289 6670.9991 4.3298077e+08 0.070102224 0.026865748 -42.045275 50.860613 6672.7208 3.9441440e+08 0.070139396 0.027297378 -42.153375 50.709274 6674.4424 3.6152970e+08 0.069428975 0.029328008 -42.252895 50.569947 6676.1641 3.5881755e+08 0.067469924 0.031819468 -42.342975 50.443833 6677.8857 3.4684421e+08 0.066766336 0.031099076 -42.436284 50.312647 6679.6074 3.1519331e+08 0.067030608 0.029765873 -42.538979 50.166713 6681.3290 2.9626823e+08 0.068025766 0.029909769 -42.643857 50.018600 6683.0507 2.4286009e+08 0.069453093 0.031262816 -42.751932 49.867294 6684.7723 2.1298354e+08 0.070033878 0.032693283 -42.857020 49.715969 6686.4939 1.8231202e+08 0.069958046 0.034048469 -42.959717 49.564630 6688.2156 1.8295424e+08 0.067899002 0.033834956 -43.050342 49.434253 6689.9372 1.8702341e+08 0.066291547 0.033172362 -43.135918 49.312644 6691.6589 1.7699157e+08 0.065713733 0.032845810 -43.227174 49.176619 6693.3805 1.7992877e+08 0.064887153 0.031473545 -43.324465 49.025279 6695.1022 1.8535411e+08 0.064303665 0.029840706 -43.425170 48.873961 6696.8238 1.8120895e+08 0.063881556 0.030018065 -43.527840 48.722655 6698.5455 1.6237575e+08 0.063406932 0.030966527 -43.613573 48.594637 6700.2671 1.6120838e+08 0.061960479 0.030865840 -43.694646 48.473029 6701.9888 1.5809665e+08 0.060465926 0.032860228 -43.784864 48.334655 6703.7104 1.5821807e+08 0.060556384 0.035452878 -43.882154 48.183315 6705.4320 1.6626867e+08 0.060193491 0.037436693 -43.964654 48.049983 6707.1537 1.8533488e+08 0.059277603 0.040164810 -44.041223 47.923871 6708.8753 1.8694732e+08 0.058534715 0.040996787 -44.128006 47.785326 6710.5970 1.7168167e+08 0.057189848 0.040613346 -44.225273 47.634021 6712.3186 1.5903670e+08 0.055330164 0.042421539 -44.319080 47.486168 6714.0403 1.4928358e+08 0.053306945 0.047306436 -44.410966 47.340232 6715.7619 1.4194453e+08 0.051706317 0.048157854 -44.490707 47.210013 6717.4836 1.3796089e+08 0.049705872 0.049844358 -44.567274 47.083899 6719.2052 1.3537243e+08 0.047638842 0.051174878 -44.649517 46.943341 6720.9269 1.2960950e+08 0.047753105 0.050312374 -44.735997 46.792002 6722.6485 1.2491663e+08 0.046759837 0.049803493 -44.815306 46.658907 6724.3701 1.2155087e+08 0.043905748 0.046835735 -44.891860 46.532820 6726.0918 1.1885731e+08 0.040847195 0.040952195 -44.973394 46.396774 6727.8134 1.1673712e+08 0.039941561 0.039876660 -45.059874 46.250838 6729.5351 1.1220062e+08 0.038784729 0.040688784 -45.146355 46.101380 6731.2567 1.0554535e+08 0.036914161 0.042260952 -45.232835 45.950038 6732.9784 99831473. 0.035562326 0.043920323 -45.307761 45.818917 6734.7000 93674011. 0.034835826 0.049311482 -45.379825 45.692805 6736.4217 88469704. 0.035660575 0.051949115 -45.460257 45.552049 6738.1433 86542355. 0.036150496 0.058110050 -45.546717 45.400746 6739.8650 83810338. 0.035408931 0.063885086 -45.619367 45.271141 6741.5866 79856888. 0.032958186 0.067431696 -45.686927 45.149532 6743.3082 74619470. 0.028181299 0.073126825 -45.764146 45.012747 6745.0299 72589246. 0.024118249 0.078579450 -45.850626 44.861408 6746.7515 68947628. 0.017366194 0.070249883 -45.924612 44.726726 6748.4732 66202732. 0.0099280288 0.069506300 -45.992171 44.600612 6750.1948 65899439. -0.027811807 0.072336799 -46.065670 44.463413 6751.9165 61587438. -0.0046396824 0.074099159 -46.146727 44.312110 6753.6381 56819311. 0.042626985 0.075042339 -46.227795 44.163971 6755.3598 53825362. 0.071811750 0.074447614 -46.308871 44.018035