# # 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 = 58.093611 km # Date (UTC) = 2011-11-30T10:49:49.608 # Date (julian) = 2455895.95126861 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6504.7881 4.5250121e+10 0.063210074 0.033727053 90.319887 33.180169 6507.5782 4.1754411e+10 0.074687432 0.034568381 90.396551 33.026897 6510.3682 3.8286051e+10 0.086471233 0.035409709 90.473187 32.874568 6513.1582 3.4931625e+10 0.098558597 0.036251036 90.549823 32.726770 6515.9483 3.1890641e+10 0.11105623 0.037092364 90.623521 32.582956 6518.7383 2.9374629e+10 0.12415866 0.037933692 90.691650 32.446696 6521.5283 2.7211764e+10 0.13787603 0.038775019 90.762248 32.305498 6524.3184 2.5191195e+10 0.14569712 0.039540060 90.838884 32.152227 6527.1084 2.3091588e+10 0.15164313 0.040795167 90.912983 31.998956 6529.8984 2.0990179e+10 0.15589100 0.043666907 90.984148 31.845684 6532.6885 1.9091912e+10 0.15896467 0.047259333 91.058796 31.692412 6535.4785 1.7418637e+10 0.16000759 0.048016725 91.135432 31.539140 6538.2685 1.5957911e+10 0.16153360 0.049287444 91.207633 31.390301 6541.0586 1.4637282e+10 0.16214398 0.051307534 91.278794 31.242503 6543.8486 1.3417969e+10 0.16246055 0.051604614 91.355337 31.089323 6546.6386 1.2299361e+10 0.16312040 0.052990025 91.431117 30.936051 6549.4287 1.1281167e+10 0.16336376 0.054403136 91.502282 30.782780 6552.2187 1.0378047e+10 0.16311491 0.055531717 91.573449 30.629501 6555.0087 9.5532328e+09 0.16141630 0.054846016 91.644620 30.476205 6557.7988 8.8093420e+09 0.15855922 0.053365429 91.715786 30.325675 6560.5888 8.1485849e+09 0.15505610 0.051743416 91.786946 30.177877 6563.3789 7.5598151e+09 0.15195563 0.049490123 91.858109 30.026378 6566.1689 7.0323455e+09 0.14930100 0.047087346 91.929274 29.873107 6568.9589 6.5110284e+09 0.14754529 0.044890185 92.000435 29.724483 6571.7490 6.0311612e+09 0.14646905 0.044298721 92.071418 29.576945 6574.5390 5.6248281e+09 0.14445071 0.042596129 92.134671 29.440705 6577.3290 5.2741220e+09 0.14227821 0.039703552 92.197924 29.304465 6580.1191 4.9620302e+09 0.13979213 0.036410723 92.263533 29.151752 6582.9091 4.6508715e+09 0.13766919 0.035046404 92.329991 28.999249 6585.6991 4.3533947e+09 0.13546443 0.033411834 92.401152 28.851451 6588.4892 4.0890762e+09 0.13370144 0.033216572 92.470596 28.701936 6591.2792 3.8417639e+09 0.13096007 0.028886864 92.536286 28.548663 6594.0692 3.6087198e+09 0.12826835 0.026134517 92.601980 28.398046 6596.8593 3.3852429e+09 0.12515518 0.025723367 92.667679 28.250227 6599.6493 3.1709895e+09 0.12343011 0.024968783 92.736984 28.098807 6602.4393 2.9778697e+09 0.12260670 0.027141717 92.808145 27.945534 6605.2294 2.8066617e+09 0.12113911 0.026857471 92.874746 27.796824 6608.0194 2.6532062e+09 0.11828532 0.023731858 92.940435 27.649026 6610.8094 2.5066335e+09 0.11364410 0.024776386 93.006120 27.501228 6613.5995 2.3558612e+09 0.11134704 0.023793541 93.071807 27.352446 6616.3895 2.2042462e+09 0.10888777 0.023343433 93.137496 27.199174 6619.1796 2.0730991e+09 0.10762302 0.024569237 93.198891 27.053632 6621.9696 1.9668817e+09 0.10635245 0.024768073 93.252414 26.922258 6624.7596 1.8762449e+09 0.10464847 0.025268931 93.309560 26.785993 6627.5497 1.7909005e+09 0.10280264 0.025529134 93.375249 26.638195 6630.3397 1.7008796e+09 0.10147039 0.025929139 93.440937 26.487820 6633.1297 1.6088966e+09 0.099887830 0.026174902 93.506622 26.334549 6635.9198 1.5212061e+09 0.098134674 0.026537720 93.568789 26.184789 6638.7098 1.4392512e+09 0.096926377 0.025640718 93.629012 26.036969 6641.4998 1.3617774e+09 0.097547511 0.025149998 93.693705 25.889166 6644.2899 1.2933762e+09 0.096497576 0.025374934 93.759394 25.741367 6647.0799 1.2285575e+09 0.095142320 0.026479848 93.819659 25.593569 6649.8699 1.1646999e+09 0.094010064 0.026434525 93.880770 25.445771 6652.6600 1.1017931e+09 0.093295529 0.027432106 93.946456 25.297974 6655.4500 1.0407862e+09 0.091520901 0.027796159 94.010297 25.148331 6658.2400 9.8435752e+08 0.089240401 0.030486795 94.070511 24.995059 6661.0301 9.3449789e+08 0.087057336 0.032550267 94.130725 24.844580 6663.8201 8.8690891e+08 0.085015923 0.032255940 94.190940 24.696781 6666.6101 8.4263355e+08 0.084499475 0.027027490 94.251154 24.548983 6669.4002 7.9944712e+08 0.082920947 0.027944690 94.311368 24.401185 6672.1902 7.5679776e+08 0.082404570 0.026989851 94.371583 24.253388 6674.9802 7.1835993e+08 0.080404491 0.029781696 94.431797 24.105590 6677.7703 6.8448430e+08 0.077802666 0.031263178 94.492020 23.957770 6680.5603 6.5443697e+08 0.077865821 0.029562413 94.552242 23.809954 6683.3504 6.2637027e+08 0.078478165 0.031702030 94.612456 23.662156 6686.1404 5.9554607e+08 0.077849281 0.033842765 94.672670 23.514358 6688.9304 5.6165787e+08 0.074434972 0.033999964 94.732885 23.366559 6691.7205 5.3356058e+08 0.073272723 0.032831282 94.793099 23.218761 6694.5105 5.0911180e+08 0.072330943 0.030545542 94.853314 23.070964 6697.3005 4.8682181e+08 0.071781391 0.030129298 94.909570 22.923166 6700.0906 4.6354429e+08 0.069966679 0.030734893 94.964309 22.775368 6702.8806 4.4140545e+08 0.068759061 0.033579893 95.023954 22.632475 6705.6706 4.2039714e+08 0.068852872 0.037860859 95.083790 22.489773 6708.4607 4.0294800e+08 0.068248675 0.040545231 95.138529 22.341974 6711.2507 3.8710813e+08 0.066090985 0.040977466 95.196681 22.189056 6714.0407 3.6501398e+08 0.063309400 0.047306471 95.265499 22.020141 6716.8308 3.4638113e+08 0.060935172 0.049625015 95.325250 21.864825 6719.6208 3.2660410e+08 0.058707563 0.050780025 95.379989 21.717028 6722.4108 3.0960009e+08 0.058571721 0.050097294 95.439202 21.569230 6725.2009 2.9881060e+08 0.053792028 0.041450541 95.499417 21.421432 6727.9909 2.8515763e+08 0.052452123 0.039640204 95.554217 21.279034 6730.7809 2.7369208e+08 0.050568717 0.041449679 95.608963 21.135795 6733.5710 2.6306835e+08 0.048876597 0.047024347 95.663702 20.987996 6736.3610 2.5157049e+08 0.050441386 0.051719860 95.721079 20.833083 6739.1511 2.4072939e+08 0.051473723 0.063011413 95.783644 20.664168 6741.9411 2.2956934e+08 0.049283845 0.068442733 95.840429 20.514891 6744.7311 2.1998152e+08 0.044281124 0.078358918 95.895168 20.372567 6747.5212 2.1200341e+08 0.039758864 0.067181746 95.949907 20.225253 6750.3112 2.0225890e+08 0.037346288 0.072535508 96.005310 20.075662 6753.1012 1.9009605e+08 0.034591342 0.073304885 96.067871 19.906747 6755.8913 1.7985028e+08 0.031963819 0.074214583 96.126626 19.750766 6758.6813 1.7215056e+08 0.031566265 0.075146019 96.181366 19.608441 6761.4713 1.6694851e+08 0.033666376 0.078007166 96.236108 19.462507 6764.2614 1.6103685e+08 0.038716183 0.079495807 96.290851 19.314710 6767.0514 1.5317276e+08 0.039256997 0.081918207 96.352104 19.154535 6769.8414 1.4784956e+08 0.033209216 0.086495120 96.412831 18.995359 6772.6315 1.4136191e+08 0.028075561 0.093262181 96.467571 18.847561 6775.4215 1.3545572e+08 0.022902218 0.10002924 96.522947 18.693706 6778.2115 1.2831996e+08 0.017723952 0.10679630 96.579250 18.531047 6781.0016 1.2136739e+08 0.012510728 0.11356337 96.634291 18.384841 6783.7916 1.1768263e+08 0.0072159763 0.12033043 96.689035 18.242516 6786.5816 1.1169927e+08 0.0019340684 0.12709749 96.745310 18.074071 6789.3717 1.0717436e+08 -0.0033897583 0.13386455 96.801012 17.915363 6792.1617 1.0154036e+08 -0.0087243273 0.14063161 96.855751 17.773039 6794.9518 96686910. -0.014083417 0.14739867 96.911364 17.619388 6797.7418 91491364. -0.019456489 0.15416573 96.967672 17.456730 6800.5318 85946177. -0.024853502 0.16093280 97.029973 17.288073 6803.3219 80993887. -0.030247776 0.16769986 97.087746 17.128735 6806.1119 77857621. -0.035603759 0.17446692 97.137014 16.986411 6808.9019 75058235. -0.040939265 0.18123398 97.193373 16.833240 6811.6920 71290297. -0.046337404 0.18800104 97.255933 16.670580 6814.4820 69110803. -0.051761325 0.19476810 97.312643 16.507921 6817.2720 66766521. -0.057363634 0.20153516 97.368947 16.343156 6820.0621 65389179. -0.063235078 0.20830223 97.425255 16.174240 6822.8521 62808946. -0.070702660 0.21506929 97.481559 16.009943 6825.6421 57332795. -0.091344767 0.22183635 97.537643 15.850124 6828.4322 51936389. -0.084238236 0.22860341 97.592383 15.707799 6831.2222 47360086. -0.056991908 0.23537047 97.647613 15.559113