# # 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 = 57.534406 km # Date (UTC) = 2014-12-28T10:08:29.747 # Date (julian) = 2457019.92256652 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6492.7629 5.6438501e+10 0.022588421 0.030100871 103.80521 31.116383 6494.9705 5.3032417e+10 0.028622367 0.030766590 103.85911 31.012431 6497.1782 4.9649799e+10 0.034596094 0.031432310 103.91301 30.908478 6499.3859 4.6777196e+10 0.040704952 0.032098030 103.96691 30.804525 6501.5936 4.4279548e+10 0.047141706 0.032763750 104.02302 30.698363 6503.8013 4.1783271e+10 0.053988489 0.033429470 104.08078 30.590546 6506.0089 3.9600018e+10 0.061493486 0.034095190 104.13854 30.482729 6508.2166 3.7621898e+10 0.069845537 0.034760909 104.19254 30.378679 6510.4243 3.5893179e+10 0.079215603 0.035426629 104.24644 30.274726 6512.6320 3.4005682e+10 0.089499076 0.036092349 104.30288 30.165869 6514.8397 3.1774856e+10 0.10050530 0.036758069 104.36352 30.048922 6517.0473 2.9524282e+10 0.11239657 0.037423789 104.42370 29.932866 6519.2550 2.7370801e+10 0.12524311 0.038089509 104.47760 29.828913 6521.4627 2.5536191e+10 0.13913645 0.038755229 104.53150 29.724960 6523.6704 2.3922071e+10 0.14909116 0.039345264 104.58359 29.621007 6525.8781 2.2369375e+10 0.15704333 0.039682004 104.63364 29.517054 6528.0857 2.0866022e+10 0.16555726 0.041510497 104.68369 29.413101 6530.2934 1.9464186e+10 0.17241360 0.044239470 104.73712 29.309137 6532.5011 1.8094237e+10 0.17727657 0.047102802 104.79102 29.205170 6534.7088 1.6807577e+10 0.17902472 0.048142829 104.84493 29.101208 6536.9165 1.5631124e+10 0.17846449 0.048610474 104.89883 28.997256 6539.1241 1.4504631e+10 0.17676821 0.049793886 104.95273 28.893304 6541.3318 1.3438848e+10 0.17477002 0.051218925 105.00827 28.780519 6543.5395 1.2346519e+10 0.17248922 0.051523485 105.06458 28.663571 6545.7472 1.1310663e+10 0.17023238 0.052462261 105.11856 28.551442 6547.9548 1.0368557e+10 0.16875373 0.053650476 105.16862 28.447490 6550.1625 9.5751258e+09 0.16723819 0.055026055 105.21867 28.343537 6552.3702 8.8876058e+09 0.16550533 0.055493586 105.27171 28.239574 6554.5779 8.2662472e+09 0.16345229 0.054844507 105.32561 28.135607 6556.7856 7.7157261e+09 0.16140045 0.053897633 105.37884 28.031643 6558.9932 7.1986966e+09 0.15879158 0.052392938 105.42889 27.927691 6561.2009 6.7387366e+09 0.15619023 0.051273670 105.47894 27.823739 6563.4086 6.3038046e+09 0.15378633 0.049455707 105.52899 27.719787 6565.6163 5.9264555e+09 0.15141632 0.047618600 105.57904 27.615834 6567.8240 5.5789137e+09 0.14958112 0.045920506 105.62909 27.511881 6570.0316 5.2161133e+09 0.14798226 0.044904402 105.68529 27.395168 6572.2393 4.8607850e+09 0.14601336 0.044093103 105.74160 27.278219 6574.4470 4.5153513e+09 0.14354304 0.042640312 105.79370 27.172611 6576.6547 4.2280821e+09 0.14094737 0.040617844 105.84375 27.072508 6578.8624 3.9944765e+09 0.13754365 0.037287849 105.89350 26.972113 6581.0700 3.7783748e+09 0.13459772 0.035575401 105.93971 26.868146 6583.2777 3.5845528e+09 0.13240062 0.034881098 105.98592 26.764180 6585.4854 3.4024315e+09 0.13027546 0.033582710 106.03397 26.660220 6587.6931 3.2271462e+09 0.12882886 0.033311928 106.08402 26.556268 6589.9008 3.0688384e+09 0.12710459 0.031258960 106.13407 26.452316 6592.1084 2.9210113e+09 0.12485486 0.027968204 106.18412 26.348364 6594.3161 2.7887473e+09 0.12267639 0.025998992 106.23417 26.244411 6596.5238 2.6631986e+09 0.12016845 0.025724892 106.28477 26.137996 6598.7315 2.5229411e+09 0.11848379 0.025057935 106.33675 26.025379 6600.9392 2.3772733e+09 0.11858431 0.026920598 106.38872 25.912761 6603.1468 2.2385778e+09 0.11782138 0.026576350 106.43507 25.808583 6605.3545 2.1199526e+09 0.11727260 0.026962449 106.48128 25.704616 6607.5622 2.0254406e+09 0.11559902 0.024596882 106.52895 25.600655 6609.7699 1.9470206e+09 0.11250606 0.023934619 106.57900 25.496703 6611.9775 1.8687780e+09 0.10991729 0.024335069 106.62905 25.392751 6614.1852 1.7828239e+09 0.10886213 0.023812878 106.68060 25.282030 6616.3929 1.6873701e+09 0.10735578 0.023343966 106.73258 25.169413 6618.6006 1.5958049e+09 0.10666364 0.024224310 106.78183 25.060890 6620.8083 1.5145383e+09 0.10576876 0.025027660 106.82803 24.956937 6623.0159 1.4453170e+09 0.10410721 0.024497734 106.87423 24.852984 6625.2236 1.3886097e+09 0.10235216 0.025664456 106.92043 24.752401 6627.4313 1.3309913e+09 0.10001290 0.025483416 106.96663 24.652298 6629.6390 1.2784556e+09 0.098469645 0.025993575 107.01283 24.551123 6631.8467 1.2316402e+09 0.096468806 0.026016769 107.05904 24.447156 6634.0543 1.1874015e+09 0.094928766 0.026330807 107.10525 24.343190 6636.2620 1.1399808e+09 0.093637691 0.026447999 107.15539 24.233334 6638.4697 1.0851385e+09 0.092886492 0.025651179 107.20736 24.120717 6640.6774 1.0265394e+09 0.093516265 0.025187774 107.25719 24.011324 6642.8851 9.8234529e+08 0.093432505 0.025187915 107.30339 23.907372 6645.0927 9.4629202e+08 0.092519688 0.025495129 107.34959 23.803419 6647.3004 9.1450483e+08 0.091370514 0.026595951 107.39691 23.692754 6649.5081 8.7787351e+08 0.090441039 0.026933301 107.44456 23.580137 6651.7158 8.3232806e+08 0.090139805 0.027032705 107.49153 23.471558 6653.9235 7.9341773e+08 0.089586651 0.027997145 107.53773 23.367605 6656.1311 7.5717172e+08 0.087850626 0.028138514 107.58393 23.263653 6658.3388 7.3313887e+08 0.086260602 0.030661973 107.63014 23.163033 6660.5465 7.1621988e+08 0.084629965 0.032122734 107.67634 23.062917 6662.7542 6.8865809e+08 0.083248397 0.032621136 107.72294 22.959405 6664.9619 6.5752665e+08 0.082508807 0.028686711 107.77059 22.846787 6667.1695 6.2256999e+08 0.082083786 0.027165730 107.81824 22.734170 6669.3772 5.9247483e+08 0.081000362 0.027968281 107.86078 22.629896 6671.5849 5.7418420e+08 0.080774336 0.026873684 107.90313 22.525944 6673.7926 5.6191548e+08 0.079789330 0.028644563 107.94900 22.418824 6676.0002 5.4609872e+08 0.077272931 0.031713885 108.00098 22.306207 6678.2079 5.3052679e+08 0.076006561 0.030797542 108.05241 22.194303 6680.4156 5.0852463e+08 0.076315730 0.029531163 108.09476 22.094201 6682.6233 4.8529081e+08 0.077016798 0.030900758 108.13712 21.994099 6684.8310 4.6430565e+08 0.077064574 0.032696260 108.18190 21.888244 6687.0386 4.4161193e+08 0.075575973 0.034321347 108.22954 21.775627 6689.2463 4.2707734e+08 0.072910367 0.033794292 108.27719 21.662353 6691.4540 4.1001063e+08 0.072024087 0.032894148 108.32484 21.545387 6693.6617 3.9274117e+08 0.071130058 0.031377090 108.37249 21.428421 6695.8694 3.7499509e+08 0.070931288 0.029699782 108.41568 21.325662 6698.0770 3.5806855e+08 0.070143552 0.030323566 108.45803 21.225560 6700.2847 3.4918577e+08 0.068333729 0.030878904 108.50168 21.122390 6702.4924 3.3945484e+08 0.067059480 0.033269914 108.54933 21.009772 6704.7001 3.2487929e+08 0.067298995 0.036521330 108.59697 20.897155 6706.9078 3.1018922e+08 0.066938887 0.040026288 108.63966 20.796257 6709.1154 2.9684842e+08 0.066216361 0.041059119 108.68201 20.696154 6711.3231 2.8360750e+08 0.064268394 0.041059852 108.72616 20.591808 6713.5308 2.7473282e+08 0.061944918 0.045606404 108.77380 20.479192 6715.7385 2.6506388e+08 0.059877490 0.048133881 108.82145 20.366575 6717.9462 2.5486852e+08 0.057573228 0.049815744 108.86909 20.253958 6720.1538 2.4569666e+08 0.056245362 0.050401942 108.91674 20.141341 6722.3615 2.3250437e+08 0.055823853 0.050158278 108.96439 20.028712 6724.5692 2.2468656e+08 0.052217933 0.045173528 109.01204 19.916078 6726.7769 2.1861187e+08 0.049259978 0.040958374 109.05591 19.808624 6728.9846 2.1106653e+08 0.048628108 0.041023533 109.09441 19.708522 6731.1922 2.0668606e+08 0.046523533 0.042132602 109.13292 19.608419 6733.3999 1.9900094e+08 0.045139269 0.046095541 109.17888 19.498104 6735.6076 1.9246110e+08 0.045836438 0.049938434 109.22652 19.385487 6737.8153 1.8358159e+08 0.047088790 0.056732627 109.27417 19.272869 6740.0229 1.7227901e+08 0.046781656 0.064089566 109.32182 19.160252 6742.2306 1.7009233e+08 0.044043447 0.069172720 109.36860 19.047635 6744.4383 1.6572392e+08 0.039431438 0.078132432 109.41192 18.935018 6746.6460 1.6165838e+08 0.035735680 0.071476957 109.45523 18.822401 6748.8537 1.5290323e+08 0.034120510 0.071508067 109.50240 18.709784 6751.0613 1.4325470e+08 0.030803780 0.073737608 109.55004 18.597167 6753.2690 1.3787014e+08 0.027780491 0.073847903 109.59517 18.487067 6755.4767 1.3342237e+08 0.025394477 0.074396341 109.63849 18.378781 6757.6844 1.3135593e+08 0.023681522 0.074663135 109.68180 18.269315 6759.8921 1.2582825e+08 0.024202299 0.076035224 109.72511 18.156698 6762.0997 1.2394089e+08 0.027813062 0.077889952 109.76843 18.044082 6764.3074 1.2192736e+08 0.030688720 0.079498013 109.81592 17.931449 6766.5151 1.1813499e+08 0.031436014 0.080878915 109.86358 17.818815 6768.7228 1.1705241e+08 0.027120335 0.083456759 109.90839 17.706192 6770.9305 1.1087767e+08 0.022648326 0.089136474 109.95170 17.593575 6773.1381 1.0302838e+08 0.018281428 0.094491067 109.99502 17.482460 6775.3458 99167323. 0.014098600 0.099845660 110.03833 17.374174 6777.5535 95711203. 0.0099558095 0.10520025 110.08165 17.265724 6779.7612 93654049. 0.0059287789 0.11055485 110.12496 17.153106 6781.9689 90782893. 0.0018726796 0.11590944 110.16827 17.040489 6784.1765 83385435. -0.0025220276 0.12126403 110.21159 16.927871 6786.3842 77647397. -0.0068696525 0.12661862 110.25490 16.815254 6788.5919 78137998. -0.010709578 0.13197322 110.30082 16.697952 6790.7996 75759210. -0.014849145 0.13732781 110.35032 16.574194 6793.0073 73749613. -0.019023735 0.14268240 110.39735 16.454898 6795.2149 72330141. -0.023237666 0.14803700 110.44066 16.342281 6797.4226 68922550. -0.027828485 0.15339159 110.48398 16.230062 6799.6303 67248821. -0.032427175 0.15874618 110.52729 16.121776 6801.8380 63828119. -0.037633739 0.16410078 110.57061 16.013491 6804.0456 60209916. -0.043516821 0.16945537 110.61877 15.889212 6806.2533 56844404. -0.050465039 0.17480996 110.66827 15.760504 6808.4610 53266661. -0.059681035 0.18016455 110.71305 15.647378 6810.6687 49984075. -0.075037575 0.18551915 110.75636 15.539092 6812.8764 49992655. -0.13771210 0.19087374 110.80024 15.421529 6815.0840 49208912. -0.092657567 0.19622833 110.84479 15.292822 6817.2917 46790125. 0.012648580 0.20158293 110.88881 15.172982