# # 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 = 61.401331 km # Date (UTC) = 2014-12-09T09:55:24.937 # Date (julian) = 2457000.91348307 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6496.6301 6.3134100e+10 0.031263596 0.031267031 107.21053 27.459625 6498.7891 5.8035690e+10 0.038515572 0.031918057 107.25948 27.354202 6500.9480 5.3407102e+10 0.046002526 0.032569083 107.31198 27.243585 6503.1070 4.9044262e+10 0.053765790 0.033220109 107.36705 27.129219 6505.2659 4.4874155e+10 0.061825274 0.033871135 107.42077 27.016819 6507.4249 4.1130546e+10 0.070298924 0.034522161 107.46971 26.911395 6509.5838 3.8102408e+10 0.079410427 0.035173187 107.51866 26.805972 6511.7428 3.5386308e+10 0.089137008 0.035824213 107.56761 26.702664 6513.9017 3.2949634e+10 0.099542557 0.036475239 107.61656 26.600992 6516.0607 3.0675863e+10 0.11058518 0.037126265 107.66551 26.499321 6518.2196 2.8530939e+10 0.12223447 0.037777291 107.71104 26.394241 6520.3786 2.6550983e+10 0.13448223 0.038428317 107.75622 26.288817 6522.5375 2.4605554e+10 0.14571675 0.039058011 107.80235 26.184344 6524.6965 2.2824300e+10 0.15329990 0.039674390 107.85130 26.082687 6526.8554 2.1194219e+10 0.15967106 0.040564912 107.90024 25.981030 6529.0144 1.9682746e+10 0.16460790 0.042258704 107.94694 25.877126 6531.1733 1.8287492e+10 0.16944924 0.045480977 107.99213 25.771702 6533.3323 1.6970554e+10 0.17401319 0.047660801 108.03731 25.666279 6535.4912 1.5791563e+10 0.17543084 0.048011198 108.08604 25.564384 6537.6502 1.4771524e+10 0.17625740 0.048991763 108.13499 25.462712 6539.8091 1.3771757e+10 0.17578957 0.050623076 108.18448 25.357424 6541.9681 1.2713898e+10 0.17317771 0.051012584 108.23531 25.243058 6544.1270 1.1657506e+10 0.17076437 0.051747410 108.28614 25.128691 6546.2860 1.0708223e+10 0.16865375 0.052699856 108.33175 25.022588 6548.4449 9.9136965e+09 0.16712087 0.053800523 108.37693 24.917165 6550.6039 9.2685440e+09 0.16555908 0.055136571 108.42211 24.812751 6552.7629 8.6568999e+09 0.16421942 0.055394757 108.46729 24.711092 6554.9218 8.0798680e+09 0.16257736 0.054851724 108.51247 24.609434 6557.0808 7.5557343e+09 0.16057510 0.053815491 108.55766 24.507767 6559.2397 7.0631485e+09 0.15816744 0.052360126 108.60285 24.406096 6561.3987 6.6350031e+09 0.15577764 0.051176232 108.64803 24.304424 6563.5576 6.2420188e+09 0.15347005 0.049283345 108.69321 24.202766 6565.7166 5.8821851e+09 0.15144658 0.047504737 108.73839 24.101108 6567.8755 5.5530551e+09 0.15002753 0.045876923 108.78357 23.999450 6570.0345 5.2395042e+09 0.14873183 0.044903235 108.82876 23.897792 6572.1934 4.9526499e+09 0.14701446 0.044119394 108.87394 23.796134 6574.3524 4.6927831e+09 0.14471300 0.042685767 108.91912 23.692049 6576.5113 4.4623624e+09 0.14241638 0.040782861 108.96430 23.586625 6578.6703 4.2535770e+09 0.13953249 0.037591189 109.00949 23.481184 6580.8292 4.0261659e+09 0.13683884 0.035754439 109.05607 23.366937 6582.9882 3.7902136e+09 0.13472634 0.035024887 109.10266 23.252569 6585.1471 3.5599701e+09 0.13265688 0.033853156 109.14837 23.146172 6587.3061 3.3604364e+09 0.13090119 0.033226183 109.19355 23.044501 6589.4650 3.2020360e+09 0.12925056 0.032123420 109.23874 22.942830 6591.6240 3.0553426e+09 0.12720972 0.028497831 109.28026 22.841171 6593.7829 2.9192233e+09 0.12530139 0.026374341 109.32168 22.739513 6595.9419 2.7872178e+09 0.12292329 0.025721246 109.36429 22.637855 6598.1008 2.6606775e+09 0.12139694 0.025359028 109.40947 22.536197 6600.2598 2.5425699e+09 0.12103855 0.025523926 109.45465 22.434538 6602.4187 2.4347046e+09 0.12054693 0.027159309 109.49735 22.332871 6604.5777 2.3421888e+09 0.11954855 0.026414282 109.53877 22.231200 6606.7366 2.2508690e+09 0.11875173 0.026180264 109.58023 22.129447 6608.8956 2.1491628e+09 0.11597845 0.023708692 109.62681 22.015103 6611.0545 2.0394933e+09 0.11321357 0.024923681 109.67341 21.900736 6613.2135 1.9374602e+09 0.11238519 0.023651918 109.71909 21.794551 6615.3724 1.8445836e+09 0.11112263 0.023262990 109.76427 21.692893 6617.5314 1.7664760e+09 0.11006765 0.023615428 109.80944 21.591242 6619.6903 1.6954296e+09 0.10931318 0.024692481 109.85091 21.493296 6621.8493 1.6290661e+09 0.10804170 0.024807947 109.89233 21.395403 6624.0082 1.5703519e+09 0.10590580 0.024866720 109.93374 21.296260 6626.1672 1.5116849e+09 0.10446444 0.026377889 109.97516 21.194602 6628.3261 1.4552940e+09 0.10252905 0.025835511 110.01658 21.092944 6630.4851 1.3989330e+09 0.10068628 0.025929497 110.06149 20.982696 6632.6440 1.3355678e+09 0.099055493 0.026109571 110.10809 20.868329 6634.8030 1.2668790e+09 0.097738779 0.026385417 110.15305 20.757963 6636.9619 1.2047764e+09 0.096483253 0.026176190 110.19447 20.656291 6639.1209 1.1549661e+09 0.095748603 0.025584864 110.23590 20.554620 6641.2798 1.1143716e+09 0.096502585 0.025149251 110.27731 20.455440 6643.4388 1.0790841e+09 0.095918157 0.025258872 110.31873 20.357546 6645.5977 1.0421980e+09 0.094954916 0.025731708 110.36015 20.259548 6647.7567 9.9927047e+08 0.094004762 0.026836186 110.40251 20.145227 6649.9157 9.5644428e+08 0.093277222 0.026371507 110.44487 20.030860 6652.0746 9.1216533e+08 0.092799265 0.027271047 110.48662 19.924661 6654.2336 8.7410255e+08 0.092043936 0.027936729 110.52804 19.823003 6656.3925 8.4355757e+08 0.090146240 0.028367917 110.56945 19.721351 6658.5515 8.1370776e+08 0.088540952 0.031039098 110.61087 19.623389 6660.7104 7.8837267e+08 0.086999925 0.032271724 110.65230 19.525483 6662.8694 7.6041319e+08 0.085619463 0.032556510 110.69403 19.422126 6665.0283 7.2966882e+08 0.084838359 0.028500744 110.73638 19.307759 6667.1873 6.9771578e+08 0.084260858 0.027172242 110.77874 19.193392 6669.3462 6.6697852e+08 0.083072229 0.028000119 110.82019 19.095011 6671.5052 6.4204888e+08 0.082853637 0.026872547 110.86160 18.997118 6673.6641 6.1874312e+08 0.081984616 0.028452449 110.90465 18.894045 6675.8231 5.9638285e+08 0.079618528 0.031374829 110.95124 18.779678 6677.9820 5.7092465e+08 0.078301970 0.030962179 110.99784 18.665311 6680.1410 5.4487853e+08 0.078426845 0.029471857 111.03590 18.566653 6682.2999 5.2112224e+08 0.079137839 0.030653692 111.07355 18.468760 6684.4589 5.0274283e+08 0.079258591 0.032677377 111.11120 18.369742 6686.6178 4.8920690e+08 0.078087460 0.034120542 111.14886 18.268070 6688.7768 4.7442075e+08 0.075328599 0.033964496 111.18652 18.166398 6690.9357 4.6040299e+08 0.074210984 0.033008629 111.22991 18.059296 6693.0947 4.4565560e+08 0.073367656 0.031571610 111.27650 17.949165 6695.2536 4.3277768e+08 0.072790581 0.029812886 111.32191 17.837843 6697.4126 4.1741924e+08 0.072142010 0.030143478 111.36427 17.723476 6699.5715 3.9687907e+08 0.070769599 0.031063076 111.40663 17.609109 6701.7305 3.7926269e+08 0.069016984 0.032481266 111.44466 17.509904 6703.8894 3.6482584e+08 0.069160930 0.035900872 111.48231 17.412011 6706.0484 3.5403990e+08 0.069064850 0.038530608 111.52120 17.310882 6708.2073 3.4261357e+08 0.068575731 0.040269355 111.56356 17.200750 6710.3663 3.2805572e+08 0.067172921 0.040568190 111.60592 17.090618 6712.5252 3.1533222e+08 0.065000097 0.042805144 111.64402 16.988143 6714.6842 3.0492957e+08 0.062820022 0.047354846 111.68167 16.886485 6716.8431 2.9714633e+08 0.060657617 0.049643223 111.72049 16.782724 6719.0021 2.8667862e+08 0.058099155 0.051367855 111.76285 16.672577 6721.1610 2.8001055e+08 0.058331857 0.050352421 111.80522 16.562429 6723.3200 2.6906826e+08 0.056838460 0.049547408 111.84758 16.452296 6725.4789 2.5807210e+08 0.052510483 0.041276848 111.88994 16.342166 6727.6379 2.4755229e+08 0.051204498 0.040110531 111.92982 16.238476 6729.7968 2.3846064e+08 0.050006899 0.040514311 111.96747 16.140583 6731.9558 2.3470624e+08 0.048080413 0.043652232 112.00512 16.042690 6734.1147 2.2754827e+08 0.047015854 0.049346696 112.04687 15.934145 6736.2737 2.1832328e+08 0.048602085 0.051389733 112.08923 15.824013 6738.4326 2.0704569e+08 0.049500086 0.059703018 112.13158 15.713881 6740.5916 1.9585052e+08 0.048622217 0.065061007 112.17394 15.603750 6742.7506 1.8762285e+08 0.045261000 0.070439609 112.21630 15.492988 6744.9095 1.7860960e+08 0.041395579 0.078496888 112.25866 15.378621 6747.0685 1.7320558e+08 0.036447239 0.067337596 112.30101 15.264254 6749.2274 1.6880762e+08 0.035767567 0.072215670 112.34337 15.153224 6751.3864 1.6126887e+08 0.032284478 0.073875024 112.38574 15.043093 6753.5453 1.5763184e+08 0.029866197 0.074741999 112.42448 14.938183 6755.7043 1.5043418e+08 0.027341023 0.074296573 112.45837 14.840278 6757.8632 1.4696964e+08 0.026023565 0.074120449 112.49226 14.742372 6760.0222 1.4595475e+08 0.026544382 0.076103528 112.53268 14.635034 6762.1811 1.4009111e+08 0.030216155 0.077758699 112.57504 14.524902 6764.3401 1.3741141e+08 0.033027962 0.079499577 112.61739 14.416510 6766.4990 1.3307801e+08 0.033838616 0.080842523 112.65975 14.310614 6768.6580 1.2886865e+08 0.029699909 0.083223534 112.70190 14.204508 6770.8169 1.2912553e+08 0.025630805 0.088861079 112.74002 14.094376 6772.9759 1.2671707e+08 0.021802036 0.094097484 112.77815 13.984245 6775.1348 1.2284385e+08 0.018024095 0.099333890 112.81919 13.874114 6777.2938 1.1814382e+08 0.014320563 0.10457030 112.86155 13.763982 6779.4527 1.1703906e+08 0.010787267 0.10980670 112.90251 13.653851 6781.6117 1.1350459e+08 0.0072873732 0.11504311 112.94064 13.543719 6783.7706 1.1161789e+08 0.0038823480 0.12027951 112.97876 13.433587 6785.9296 1.0821659e+08 0.00051444991 0.12551592 113.02098 13.323456 6788.0885 1.0290563e+08 -0.0028025716 0.13075232 113.06334 13.213325 6790.2475 99472778. -0.0060207547 0.13598873 113.10643 13.093648 6792.4064 94994543. -0.0091710232 0.14122514 113.15000 12.967781 6794.5654 87772937. -0.012198687 0.14646154 113.19062 12.852717 6796.7243 88169083. -0.015258476 0.15169795 113.22874 12.746822 6798.8833 88282995. -0.018317780 0.15693435 113.26763 12.640160 6801.0422 83777835. -0.021206718 0.16217076 113.31000 12.530012 6803.2012 80098046. -0.024054738 0.16740716 113.35236 12.419865 6805.3601 74025599. -0.026671003 0.17264357 113.39125 12.309730 6807.5191 73331801. -0.029614275 0.17787998 113.42937 12.199598 6809.6780 73567368. -0.032671355 0.18311638 113.46999 12.084468 6811.8370 73106313. -0.035700468 0.18835279 113.51356 11.963442 6813.9959 71044937. -0.038557642 0.19358919 113.55499 11.846700 6816.1549 68183141. -0.041255819 0.19882560 113.59311 11.736568 6818.3138 64039618. -0.043619807 0.20406200 113.63137 11.626437 6820.4728 58941121. -0.045491501 0.20929841 113.67373 11.516306 6822.6317 56990629. -0.047643360 0.21453482 113.71609 11.406174 6824.7907 53870656. -0.048826932 0.21977122 113.75926 11.288727 6826.9496 53841664. -0.049735893 0.22500763 113.80283 11.167701 6829.1086 55340715. -0.048800491 0.23024403 113.84310 11.053275 6831.2675 50002817. -0.012467930 0.23548044 113.88122 10.943143 6833.4265 48177119. -0.049326301 0.24071684 113.92068 10.830341 6835.5854 43528838. -0.12838028 0.24595325 113.96425 10.709315