# # 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 = 64.930910 km # Date (UTC) = 2013-11-21T10:08:58.883 # Date (julian) = 2456617.92290374 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6507.6691 5.3669163e+10 0.078409442 0.034595795 102.74029 30.314294 6510.1059 4.9468415e+10 0.089390189 0.035330626 102.80513 30.158031 6512.5428 4.5533194e+10 0.10067431 0.036065457 102.86250 30.024161 6514.9797 4.2036550e+10 0.11233072 0.036800288 102.91990 29.890201 6517.4165 3.8738162e+10 0.12428626 0.037535119 102.98543 29.731881 6519.8534 3.5172099e+10 0.13634981 0.038269950 103.05100 29.573419 6522.2903 3.1473388e+10 0.14769432 0.038993262 103.11657 29.414956 6524.7271 2.8308343e+10 0.15380809 0.039685279 103.17938 29.263176 6527.1640 2.5778105e+10 0.15861006 0.040835540 103.23676 29.124504 6529.6009 2.3618351e+10 0.16227007 0.043192923 103.29615 28.982309 6532.0377 2.1598065e+10 0.16578073 0.046715720 103.36171 28.829336 6534.4746 1.9646390e+10 0.16708684 0.048077324 103.42387 28.682313 6536.9115 1.7905630e+10 0.16786022 0.048606023 103.48125 28.543641 6539.3483 1.6515172e+10 0.16847438 0.050065290 103.53708 28.404975 6541.7852 1.5386057e+10 0.16834833 0.051071891 103.58967 28.266323 6544.2221 1.4271076e+10 0.16777250 0.051824503 103.64529 28.124326 6546.6589 1.3110695e+10 0.16719947 0.053006734 103.71086 27.971327 6549.0958 1.1984237e+10 0.16586986 0.054063924 103.77120 27.824112 6551.5327 1.1006011e+10 0.16466401 0.055422731 103.82379 27.685461 6553.9696 1.0186708e+10 0.16232909 0.054847686 103.88043 27.542340 6556.4064 9.4542235e+09 0.16005695 0.053953374 103.94600 27.389342 6558.8433 8.7782658e+09 0.15746122 0.052520721 104.00532 27.243250 6561.2802 8.1831666e+09 0.15469503 0.051234627 104.05791 27.104599 6563.7170 7.6799058e+09 0.15202707 0.049098937 104.11343 26.960355 6566.1539 7.1694393e+09 0.14981142 0.047095829 104.17354 26.807356 6568.5908 6.6535379e+09 0.14839301 0.045228615 104.22944 26.662389 6571.0276 6.1871125e+09 0.14708164 0.044495730 104.28203 26.523738 6573.4645 5.8172188e+09 0.14543180 0.043284737 104.33462 26.387325 6575.9014 5.5151660e+09 0.14330295 0.041470360 104.38721 26.253453 6578.3382 5.2105785e+09 0.14102295 0.038115512 104.44264 26.112379 6580.7751 4.8869179e+09 0.13866736 0.035804452 104.50274 25.959380 6583.2120 4.5664061e+09 0.13694054 0.034914380 104.55874 25.814223 6585.6488 4.2795842e+09 0.13485889 0.033452047 104.61133 25.675572 6588.0857 4.0561362e+09 0.13310790 0.033351311 104.66393 25.539096 6590.5226 3.8667067e+09 0.13041216 0.030090010 104.71652 25.405225 6592.9594 3.6769252e+09 0.12768269 0.027141621 104.76986 25.264404 6595.3963 3.4696717e+09 0.12460799 0.025664669 104.82450 25.111406 6597.8332 3.2674552e+09 0.12183112 0.025459810 104.87805 24.966059 6600.2700 3.0903502e+09 0.12047986 0.025545025 104.93064 24.827407 6602.7069 2.9226062e+09 0.11897900 0.026913388 104.98414 24.682418 6605.1438 2.7629931e+09 0.11743398 0.026785658 105.03878 24.529419 6607.5806 2.6001742e+09 0.11531687 0.024560446 105.09216 24.388120 6610.0175 2.4603988e+09 0.11207210 0.024019709 105.14476 24.254250 6612.4544 2.3495699e+09 0.11000206 0.023981258 105.19487 24.120369 6614.8912 2.2563040e+09 0.10911952 0.023326459 105.24268 23.986478 6617.3281 2.1537367e+09 0.10804604 0.023548034 105.29577 23.844394 6619.7650 2.0422942e+09 0.10773057 0.024710492 105.35588 23.691396 6622.2018 1.9322460e+09 0.10676011 0.024704267 105.40862 23.549850 6624.6387 1.8275335e+09 0.10527807 0.025204211 105.45644 23.415980 6627.0756 1.7503481e+09 0.10330849 0.025346007 105.50425 23.279685 6629.5125 1.6800330e+09 0.10214210 0.026016452 105.55206 23.141033 6631.9493 1.6063836e+09 0.10030448 0.026027197 105.60271 22.996419 6634.3862 1.5271209e+09 0.098790053 0.026355013 105.65735 22.843422 6636.8231 1.4447625e+09 0.097244730 0.026230127 105.70799 22.701623 6639.2599 1.3742718e+09 0.096242974 0.025535172 105.75580 22.567752 6641.6968 1.3147547e+09 0.096610445 0.025150666 105.80361 22.433881 6644.1337 1.2643484e+09 0.095314043 0.025358052 105.85142 22.300010 6646.5705 1.2084905e+09 0.093953926 0.026215470 105.90198 22.158443 6649.0074 1.1501536e+09 0.092364002 0.027623495 105.95663 22.005446 6651.4443 1.0944837e+09 0.091729848 0.026824628 106.00736 21.863394 6653.8811 1.0420165e+09 0.090748267 0.027975535 106.05517 21.729523 6656.3180 1.0041243e+09 0.088318971 0.028302522 106.10068 21.597950 6658.7549 9.6756696e+08 0.086173270 0.031399848 106.14371 21.468861 6661.1917 9.3071648e+08 0.084420168 0.032632603 106.19126 21.330469 6663.6286 8.9126996e+08 0.082946172 0.032309012 106.24590 21.177470 6666.0655 8.4777067e+08 0.082952441 0.026921352 106.29673 21.035165 6668.5023 8.0732359e+08 0.082082312 0.027915306 106.34454 20.901294 6670.9392 7.7085615e+08 0.081986804 0.026893514 106.39012 20.767423 6673.3761 7.4460147e+08 0.081462269 0.028021661 106.43314 20.633552 6675.8129 7.1620008e+08 0.079239695 0.031355435 106.48054 20.492493 6678.2498 6.8674463e+08 0.078004850 0.030769532 106.53518 20.339495 6680.6867 6.5424651e+08 0.078602797 0.029589698 106.58348 20.199546 6683.1235 6.2681394e+08 0.079283242 0.031369635 106.62651 20.070457 6685.5604 6.0327459e+08 0.078846721 0.033296770 106.67482 19.930508 6687.9973 5.7878274e+08 0.076343378 0.033786708 106.72946 19.777508 6690.4341 5.5477453e+08 0.074221704 0.033066110 106.77686 19.636435 6692.8710 5.3024698e+08 0.073172973 0.031753872 106.81989 19.502546 6695.3079 5.0916943e+08 0.072455806 0.029802920 106.86620 19.361385 6697.7447 4.8532405e+08 0.071660069 0.030185515 106.91538 19.213851 6700.1816 4.6529724e+08 0.069809963 0.030802429 106.96360 19.075920 6702.6185 4.4547506e+08 0.068503228 0.033370593 107.01141 18.942049 6705.0554 4.3085296e+08 0.068637536 0.036767012 107.05630 18.808179 6707.4922 4.2047580e+08 0.068035207 0.040116316 107.09933 18.674309 6709.9291 4.0364904e+08 0.066841271 0.040541598 107.14556 18.533338 6712.3660 3.8911902e+08 0.064377780 0.042509417 107.19473 18.385803 6714.8028 3.7432916e+08 0.062103803 0.047363765 107.23967 18.247690 6717.2397 3.6156377e+08 0.059871830 0.049859442 107.28270 18.113820 6719.6766 3.5032073e+08 0.058111802 0.050727058 107.32941 17.971779 6722.1134 3.3244781e+08 0.058378827 0.050464978 107.37858 17.824247 6724.5503 3.1638969e+08 0.055102304 0.045331344 107.42304 17.687205 6726.9872 3.0417928e+08 0.052359088 0.040960271 107.46607 17.553334 6729.4240 2.9732710e+08 0.051773956 0.040762800 107.51326 17.410223 6731.8609 2.9159838e+08 0.049789164 0.043463371 107.56244 17.262689 6734.2978 2.8009141e+08 0.049035143 0.049335684 107.61162 17.115154 6736.7346 2.6779172e+08 0.051056698 0.053132333 107.66070 16.967839 6739.1715 2.5735170e+08 0.051923765 0.063036437 107.70373 16.833969 6741.6084 2.4705714e+08 0.050184946 0.067493797 107.74675 16.700100 6744.0452 2.3827124e+08 0.045136684 0.077828402 107.79547 16.553596 6746.4821 2.2923431e+08 0.042183880 0.073382268 107.84361 16.407805 6748.9190 2.1801518e+08 0.040201895 0.071851647 107.88186 16.278715 6751.3558 2.0860547e+08 0.036532327 0.073862122 107.92018 16.149481 6753.7927 2.0368859e+08 0.034092701 0.075542638 107.96932 15.996559 6756.2296 1.9688524e+08 0.031317748 0.074757642 108.01850 15.844505 6758.6664 1.8941406e+08 0.031240492 0.075114606 108.06768 15.696971 6761.1033 1.7958003e+08 0.032031732 0.077976760 108.11311 15.555758 6763.5402 1.7239505e+08 0.037501977 0.078082892 108.15136 15.426668 6765.9770 1.7002819e+08 0.039607881 0.079709557 108.19235 15.292946 6768.4139 1.6698382e+08 0.035716107 0.082345389 108.24153 15.145413 6770.8508 1.6224765e+08 0.030869383 0.088943223 108.28840 14.997879 6773.2877 1.5227192e+08 0.026545885 0.094853698 108.33212 14.850345 6775.7245 1.4757564e+08 0.022148849 0.10076417 108.37906 14.702812 6778.1614 1.4205705e+08 0.017758402 0.10667465 108.42824 14.555278 6780.5983 1.3771764e+08 0.013341601 0.11258513 108.46910 14.421778 6783.0351 1.3387715e+08 0.0089103144 0.11849560 108.50735 14.292687 6785.4720 1.2687676e+08 0.0045122665 0.12440608 108.55291 14.151252 6787.9089 1.2342287e+08 5.9194861e-05 0.13031655 108.60209 14.003718 6790.3457 1.2032299e+08 -0.0044076530 0.13622703 108.64669 13.856185 6792.7826 1.1667591e+08 -0.0088743088 0.14213750 108.69045 13.708651 6795.2195 1.1101730e+08 -0.013331055 0.14804798 108.73963 13.561117 6797.6563 1.0593774e+08 -0.017806645 0.15395846 108.78783 13.413583 6800.0932 1.0110137e+08 -0.022295916 0.15986893 108.83154 13.266050 6802.5301 98929168. -0.026802891 0.16577941 108.87526 13.118516 6804.9669 97128348. -0.031312412 0.17168988 108.91897 12.970981 6807.4038 94484982. -0.035827159 0.17760036 108.96268 12.823447 6809.8407 92449251. -0.040341039 0.18351083 109.00639 12.675913 6812.2775 88215367. -0.044876401 0.18942131 109.05011 12.528379 6814.7144 86418701. -0.049394503 0.19533179 109.09382 12.380845 6817.1513 80465747. -0.053984392 0.20124226 109.14223 12.233312 6819.5881 77770501. -0.058529305 0.20715274 109.19125 12.085778 6822.0250 75646467. -0.063050166 0.21306321 109.23496 11.938244 6824.4619 70908826. -0.067645687 0.21897369 109.27868 11.791795 6826.8987 69981253. -0.072096943 0.22488416 109.32239 11.649725 6829.3356 66289707. -0.076663451 0.23079464 109.36611 11.505641 6831.7725 65482268. -0.081102928 0.23670512 109.40982 11.358107 6834.2093 65270224. -0.085506678 0.24261559 109.45353 11.210574 6836.6462 63268576. -0.090014244 0.24852607 109.49725 11.063040 6839.0831 60661623. -0.094579950 0.25443654 109.54096 10.919377 6841.5199 58929105. -0.099111589 0.26034702 109.58467 10.777307 6843.9568 57546630. -0.10364118 0.26625749 109.63479 10.608841 6846.3937 55611127. -0.10825728 0.27216797 109.68353 10.444327 6848.8306 54428690. -0.11285868 0.27807845 109.72725 10.296793 6851.2674 50873683. -0.11781953 0.28398892 109.77096 10.151879 6853.7043 46651293. -0.12309477 0.28989940 109.81468 10.009808 6856.1412 41704906. -0.12891285 0.29580987 109.85839 9.8641897 6858.5780 38081002. -0.13511035 0.30172035 109.90211 9.7166557 6861.0149 38640145. -0.14085890 0.30763082 109.95178 9.5542223 6863.4518 41716245. -0.14681215 0.31354130 109.99958 9.3930570 6865.8886 44655668. -0.15559789 0.31945178 110.03783 9.2455230 6868.3255 46016189. -0.19083105 0.32536225 110.08143 9.0903313 6870.7624 46411320. -0.16708248 0.33127273 110.13244 8.9245787 6873.1992 43308349. -0.11331911 0.33718320 110.17723 8.7743426