# # 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 = 56.280462 km # Date (UTC) = 2014-01-25T09:09:20.836 # Date (julian) = 2456682.88149116 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6501.3789 7.6104217e+10 0.050773528 0.032699014 113.49031 48.853249 6503.6439 6.9008086e+10 0.059820728 0.033382016 113.63238 48.666827 6505.9089 6.1904762e+10 0.069022512 0.034065019 113.77766 48.474800 6508.1739 5.5520138e+10 0.078499955 0.034748022 113.90802 48.308888 6510.4389 5.0347568e+10 0.088455889 0.035431024 114.03527 48.142976 6512.7039 4.5899036e+10 0.098890688 0.036114027 114.15970 47.977064 6514.9689 4.1443772e+10 0.10962035 0.036797029 114.30497 47.783374 6517.2339 3.7203800e+10 0.12069152 0.037480032 114.44103 47.598560 6519.4988 3.3354913e+10 0.13216167 0.038163035 114.55953 47.432648 6521.7638 3.0112627e+10 0.14414194 0.038846037 114.68243 47.271161 6524.0288 2.7299813e+10 0.15069222 0.039437203 114.80652 47.110878 6526.2938 2.4712881e+10 0.15604888 0.039976128 114.92503 46.944966 6528.5588 2.2459982e+10 0.16131414 0.041885794 115.04353 46.779054 6530.8238 2.0494885e+10 0.16532743 0.044982017 115.16204 46.613141 6533.0888 1.8742113e+10 0.16970673 0.047557326 115.27652 46.447227 6535.3538 1.7155581e+10 0.17150350 0.048070821 115.38911 46.281313 6537.6188 1.5730569e+10 0.17309294 0.048976957 115.50757 46.115401 6539.8838 1.4502398e+10 0.17422281 0.050713423 115.62427 45.949489 6542.1488 1.3446710e+10 0.17291048 0.051058721 115.73686 45.783576 6544.4138 1.2524653e+10 0.17140168 0.051980004 115.84577 45.617683 6546.6788 1.1678908e+10 0.16947656 0.053023037 115.95241 45.451801 6548.9438 1.0899826e+10 0.16715735 0.053949483 116.06457 45.285892 6551.2087 1.0150915e+10 0.16545192 0.055309024 116.17573 45.119979 6553.4737 9.4555673e+09 0.16375886 0.055096924 116.28239 44.954067 6555.7387 8.8214999e+09 0.16157929 0.054232653 116.39232 44.788153 6558.0037 8.2452971e+09 0.15972747 0.053236130 116.50491 44.622239 6560.2687 7.7417799e+09 0.15724720 0.052032025 116.61236 44.456327 6562.5337 7.2580688e+09 0.15466009 0.050372058 116.71796 44.290414 6564.7987 6.8031657e+09 0.15234393 0.048409624 116.81870 44.124502 6567.0637 6.3780632e+09 0.15041619 0.046563330 116.92233 43.958605 6569.3287 5.9837089e+09 0.14862412 0.044873817 117.02897 43.792723 6571.5937 5.6393251e+09 0.14721686 0.044341129 117.13086 43.626817 6573.8587 5.3114340e+09 0.14500993 0.042968415 117.23159 43.460905 6576.1237 5.0028024e+09 0.14284402 0.041229048 117.33233 43.294993 6578.3887 4.7112515e+09 0.14036158 0.038035872 117.43306 43.129079 6580.6537 4.4365501e+09 0.13777485 0.035916682 117.53379 42.963165 6582.9186 4.2087486e+09 0.13552464 0.035043805 117.62388 42.814791 6585.1836 4.0128831e+09 0.13294837 0.033823957 117.71022 42.672584 6587.4486 3.8280072e+09 0.13038036 0.033257769 117.80765 42.512104 6589.7136 3.6464033e+09 0.12753814 0.031630207 117.90789 42.346191 6591.9786 3.4554983e+09 0.12431990 0.028097652 118.00270 42.180279 6594.2436 3.2609134e+09 0.12149825 0.026038793 118.09750 42.014379 6596.5086 3.0773745e+09 0.11875387 0.025724961 118.19229 41.848498 6598.7736 2.9177220e+09 0.11705160 0.025037822 118.27750 41.699370 6601.0386 2.7846994e+09 0.11715836 0.027063864 118.35876 41.557163 6603.3036 2.6653100e+09 0.11621695 0.026483553 118.45003 41.397446 6605.5686 2.5399524e+09 0.11576921 0.027142034 118.54484 41.231533 6607.8336 2.4063232e+09 0.11404342 0.024061009 118.63964 41.065619 6610.0986 2.2719641e+09 0.11122508 0.024097153 118.73230 40.899705 6612.3636 2.1421428e+09 0.10931259 0.024049117 118.82118 40.733793 6614.6285 2.0333080e+09 0.10838099 0.023507447 118.90148 40.583900 6616.8935 1.9400817e+09 0.10698677 0.023422540 118.97766 40.441694 6619.1585 1.8569123e+09 0.10627122 0.024564166 119.06282 40.282731 6621.4235 1.7699184e+09 0.10533360 0.024949067 119.15171 40.116816 6623.6885 1.6734553e+09 0.10357042 0.024746912 119.24059 39.950904 6625.9535 1.5828443e+09 0.10234577 0.026535432 119.32526 39.792851 6628.2185 1.5111112e+09 0.10042670 0.025791811 119.40144 39.650645 6630.4835 1.4472376e+09 0.098642364 0.025929493 119.48222 39.499854 6632.7485 1.3848486e+09 0.096860745 0.026122095 119.57108 39.333973 6635.0135 1.3253116e+09 0.095110013 0.026401810 119.64797 39.184063 6637.2785 1.2666078e+09 0.093285159 0.026025022 119.71907 39.041857 6639.5435 1.2154499e+09 0.092253236 0.025433826 119.80272 38.882922 6641.8085 1.1644094e+09 0.092264769 0.025151046 119.89150 38.717009 6644.0735 1.1080034e+09 0.091094446 0.025351545 119.97445 38.551094 6646.3384 1.0527796e+09 0.090117172 0.026095340 120.05349 38.393013 6648.6034 1.0059682e+09 0.089124703 0.027368231 120.12459 38.250807 6650.8684 9.6097711e+08 0.088787024 0.026454046 120.19998 38.100032 6653.1334 9.1857504e+08 0.088536381 0.027593785 120.28294 37.934120 6655.3984 8.7833876e+08 0.087201700 0.027774845 120.35791 37.784180 6657.6634 8.4462398e+08 0.085532042 0.029670650 120.42901 37.641972 6659.9284 8.1348261e+08 0.084101612 0.031640932 120.50429 37.483056 6662.1934 7.7825034e+08 0.082636162 0.032935762 120.58143 37.317247 6664.4584 7.3421277e+08 0.081705481 0.030528848 120.66437 37.157290 6666.7234 6.9552207e+08 0.081645204 0.027049556 120.74174 37.003177 6668.9884 6.6886242e+08 0.080343953 0.028345419 120.80776 36.860971 6671.2534 6.4368128e+08 0.080413473 0.026868959 120.87989 36.710224 6673.5184 6.2093531e+08 0.079745269 0.028234470 120.96284 36.544312 6675.7834 5.9443820e+08 0.077558365 0.031298774 121.03441 36.394344 6678.0484 5.7214923e+08 0.076250487 0.030904275 121.10044 36.252136 6680.3133 5.4793769e+08 0.076468277 0.029509080 121.17421 36.093248 6682.5783 5.2359427e+08 0.077104238 0.030866414 121.25106 35.927717 6684.8433 5.0514260e+08 0.076919129 0.032696887 121.31708 35.785510 6687.1083 4.8807454e+08 0.075017511 0.034282488 121.38335 35.642467 6689.3733 4.7429080e+08 0.072131855 0.033679981 121.45445 35.482478 6691.6383 4.4994034e+08 0.071054240 0.032850664 121.52769 35.320359 6693.9033 4.2085911e+08 0.070104221 0.031294201 121.60472 35.154445 6696.1683 3.9838557e+08 0.070031712 0.029745708 121.67436 35.004458 6698.4333 3.8261244e+08 0.069101251 0.030812553 121.74038 34.862252 6700.6983 3.7080411e+08 0.067334465 0.031185652 121.80998 34.703384 6702.9633 3.5500498e+08 0.066888452 0.033645908 121.88093 34.537911 6705.2283 3.4105092e+08 0.067097085 0.037074416 121.94186 34.400806 6707.4933 3.2578958e+08 0.066816253 0.040116168 122.00327 34.262377 6709.7583 3.1452753e+08 0.065877799 0.040650259 122.07437 34.096464 6712.0232 3.0390257e+08 0.063704412 0.041873115 122.14760 33.930550 6714.2882 2.8761295e+08 0.061620660 0.047325078 122.22463 33.764636 6716.5532 2.7528975e+08 0.059717092 0.049216217 122.28747 33.618028 6718.8182 2.6219744e+08 0.057294209 0.051086734 122.34334 33.480900 6721.0832 2.5298851e+08 0.057487927 0.050328972 122.40990 33.323573 6723.3482 2.4614040e+08 0.056038030 0.049563146 122.48086 33.157995 6725.6132 2.3700331e+08 0.051752305 0.041192982 122.54181 33.015789 6727.8782 2.3082740e+08 0.050614790 0.039790379 122.60321 32.872780 6730.1432 2.2263327e+08 0.049134382 0.040575230 122.67431 32.712793 6732.4082 2.1142642e+08 0.047450284 0.043815354 122.74330 32.550687 6734.6732 2.0052413e+08 0.046979910 0.049313097 122.80848 32.384774 6736.9382 1.8831390e+08 0.048629848 0.053901799 122.87083 32.238143 6739.2032 1.8139333e+08 0.049063243 0.063075180 122.93177 32.101014 6741.4682 1.7450899e+08 0.047232048 0.067093888 122.99567 31.943734 6743.7331 1.6640827e+08 0.042478469 0.075993216 123.06084 31.777853 6745.9981 1.5810325e+08 0.040736415 0.078986495 123.12602 31.611940 6748.2631 1.5707215e+08 0.036439761 0.068401240 123.18982 31.455391 6750.5281 1.5482506e+08 0.033505367 0.072905924 123.25077 31.318263 6752.7931 1.5006665e+08 0.030557401 0.073216692 123.31323 31.170877 6755.0581 1.4413232e+08 0.028578622 0.074579868 123.37841 31.004965 6757.3231 1.3379764e+08 0.026068244 0.075759526 123.44359 30.843014 6759.5881 1.2911462e+08 0.026827762 0.075961872 123.50877 30.683025 6761.8531 1.2554910e+08 0.029804994 0.078038707 123.55983 30.540482 6764.1181 1.2072947e+08 0.033126582 0.079488942 123.61079 30.398059 6766.3831 1.1765152e+08 0.034162956 0.080580268 123.67597 30.238071 6768.6481 1.1312639e+08 0.029813650 0.083187924 123.74115 30.078084 6770.9131 1.0664282e+08 0.025200446 0.089094273 123.80633 29.918098 6773.1781 1.0494938e+08 0.020938177 0.094587876 123.86558 29.769434 6775.4430 1.0480936e+08 0.016729876 0.10008148 123.92145 29.627227 6777.7080 1.0390955e+08 0.012524727 0.10557508 123.97957 29.473165 6779.9730 98402383. 0.0081921913 0.11106869 124.03881 29.313208 6782.2380 91447155. 0.0037835717 0.11656229 124.10387 29.147415 6784.5030 87783697. -0.00050875267 0.12205589 124.16732 28.983235 6786.7680 84483124. -0.0047794008 0.12754950 124.22658 28.823248 6789.0330 81579987. -0.0090315373 0.13304310 124.28583 28.663260 6791.2980 76909305. -0.013402217 0.13853671 124.34508 28.503272 6793.5630 72583736. -0.017769704 0.14403031 124.40123 28.359590 6795.8280 71676528. -0.021876769 0.14952391 124.45710 28.217383 6798.0930 69554217. -0.026082553 0.15501752 124.51618 28.058320 6800.3580 69082127. -0.030172114 0.16051112 124.57543 27.898333 6802.6230 68056818. -0.034351713 0.16600472 124.63469 27.738345 6804.8880 64296153. -0.038876543 0.17149833 124.69394 27.574982 6807.1529 60529033. -0.043567263 0.17699193 124.75318 27.409100 6809.4179 56475790. -0.048548402 0.18248553 124.81243 27.248435 6811.6829 54363927. -0.053571513 0.18797914 124.87169 27.088448 6813.9479 53016312. -0.058920072 0.19347274 124.93094 26.928461 6816.2129 52724479. -0.064790668 0.19896635 124.98718 26.768473 6818.4779 51912147. -0.072193364 0.20445995 125.04051 26.608486 6820.7429 49977703. -0.084285523 0.20995355 125.09871 26.448498 6823.0079 48852476. -0.13357830 0.21544716 125.15796 26.287715 6825.2729 46189738. -0.10185720 0.22094076 125.21721 26.121803 6827.5379 45209214. -0.020109122 0.22643436 125.27382 25.958551