# # 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 = 34.237567 km # Date (UTC) = 2017-01-15T10:01:08.324 # Date (julian) = 2457768.91745746 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6520.3075 3.7037554e+10 0.15891295 0.038406893 -29.878905 51.068744 6521.6575 3.4268812e+10 0.16584872 0.038813976 -29.955408 50.994591 6523.0075 3.1724832e+10 0.17003032 0.039180971 -30.024272 50.925727 6524.3575 2.9635520e+10 0.17333611 0.039553956 -30.093137 50.856863 6525.7075 2.7920067e+10 0.17559665 0.039701474 -30.162001 50.787999 6527.0574 2.6079972e+10 0.17905443 0.040758170 -30.235276 50.716082 6528.4074 2.4192933e+10 0.18029333 0.041765689 -30.313979 50.640404 6529.7574 2.2214135e+10 0.18246918 0.043442253 -30.392683 50.564727 6531.1074 2.0398129e+10 0.18263142 0.045384969 -30.469580 50.490036 6532.4574 1.8892722e+10 0.18466848 0.047066266 -30.535796 50.421172 6533.8073 1.7613420e+10 0.18440194 0.047862682 -30.602012 50.352308 6535.1573 1.6641796e+10 0.18451952 0.048156052 -30.668227 50.283444 6536.5073 1.5636373e+10 0.18314947 0.048244395 -30.737936 50.210947 6537.8573 1.4617718e+10 0.18294258 0.049089394 -30.813613 50.132243 6539.2073 1.3570195e+10 0.18171201 0.049894510 -30.889290 50.053538 6540.5572 1.2534950e+10 0.18059498 0.051117356 -30.964345 49.975653 6541.9072 1.1667425e+10 0.17860947 0.051032326 -31.030561 49.909437 6543.2572 1.0947431e+10 0.17651602 0.051449397 -31.096778 49.843221 6544.6072 1.0377119e+10 0.17466764 0.052136904 -31.162994 49.777005 6545.9572 9.8658103e+09 0.17193059 0.052464142 -31.231076 49.707166 6547.3071 9.3283928e+09 0.17091176 0.053404164 -31.303727 49.628463 6548.6571 8.7330201e+09 0.16885988 0.053863885 -31.376377 49.549759 6550.0071 8.1019676e+09 0.16802474 0.054987137 -31.449027 49.471056 6551.3571 7.5523130e+09 0.16594627 0.055361092 -31.512716 49.402059 6552.7071 7.0837675e+09 0.16467137 0.055408800 -31.576284 49.333194 6554.0570 6.6896825e+09 0.16245383 0.054833577 -31.639851 49.264328 6555.4070 6.3562275e+09 0.16085556 0.054511369 -31.703418 49.196022 6556.7570 6.0506755e+09 0.15887145 0.053901832 -31.766985 49.129807 6558.1070 5.7987531e+09 0.15671970 0.053148143 -31.830552 49.063591 6559.4570 5.5220482e+09 0.15433862 0.052335603 -31.894120 48.997375 6560.8069 5.2601268e+09 0.15168342 0.051546747 -31.960324 48.925720 6562.1569 5.0237125e+09 0.14955590 0.050730586 -32.029947 48.847016 6563.5069 4.7735927e+09 0.14686427 0.049341997 -32.099570 48.768313 6564.8569 4.5536910e+09 0.14480416 0.048383258 -32.168043 48.690908 6566.2069 4.3162334e+09 0.14221421 0.047065862 -32.228962 48.622043 6567.5568 4.1187827e+09 0.14044637 0.046146362 -32.289880 48.553178 6568.9068 3.9687170e+09 0.13790168 0.044938076 -32.350799 48.484313 6570.2568 3.8127179e+09 0.13623429 0.044811132 -32.414820 48.411940 6571.6068 3.6427361e+09 0.13398093 0.044337551 -32.484443 48.333237 6572.9568 3.4351303e+09 0.13184196 0.043682242 -32.554065 48.254534 6574.3067 3.2457321e+09 0.12940522 0.042707677 -32.623087 48.176351 6575.6567 3.0810817e+09 0.12737694 0.041715807 -32.681366 48.107475 6577.0067 2.9498664e+09 0.12551014 0.040209841 -32.739645 48.038600 6578.3567 2.8456591e+09 0.12332749 0.038086368 -32.797924 47.969724 6579.7067 2.7285142e+09 0.12149289 0.036682013 -32.859354 47.898961 6581.0566 2.6058279e+09 0.11942586 0.035579456 -32.928965 47.823297 6582.4066 2.4644521e+09 0.11815255 0.035183141 -32.998575 47.747633 6583.7566 2.3209787e+09 0.11645821 0.034638707 -33.068186 47.671970 6585.1066 2.1900173e+09 0.11520272 0.033885560 -33.126760 47.602918 6586.4566 2.0831413e+09 0.11342835 0.033165394 -33.185040 47.534044 6587.8065 1.9872216e+09 0.11218658 0.033337069 -33.243319 47.465169 6589.1565 1.9032277e+09 0.11038366 0.032735444 -33.301069 47.396297 6590.5065 1.8227908e+09 0.10856420 0.030119886 -33.356690 47.327433 6591.8565 1.7450570e+09 0.10666615 0.028235465 -33.412311 47.258569 6593.2065 1.6861067e+09 0.10479563 0.026910269 -33.467932 47.189705 6594.5564 1.6198988e+09 0.10281818 0.025867061 -33.528201 47.116673 6595.9064 1.5502178e+09 0.10050965 0.025717570 -33.594797 47.037969 6597.2564 1.4650248e+09 0.098988002 0.025641815 -33.661393 46.959264 6598.6064 1.3789325e+09 0.097490569 0.025117655 -33.726672 46.881740 6599.9564 1.3124997e+09 0.097016212 0.024987251 -33.782294 46.812876 6601.3063 1.2595094e+09 0.096278135 0.027189962 -33.837915 46.744011 6602.6563 1.2073828e+09 0.095242593 0.026956549 -33.893536 46.675147 6604.0063 1.1556521e+09 0.093818241 0.026075022 -33.949157 46.606283 6605.3563 1.1062771e+09 0.093594128 0.026963941 -34.004778 46.537418 6606.7063 1.0643021e+09 0.092694757 0.026234822 -34.060399 46.468553 6608.0562 1.0389395e+09 0.091026631 0.023730884 -34.116020 46.399688 6609.4062 1.0006533e+09 0.089063862 0.023826601 -34.176163 46.325226 6610.7562 9.5233865e+08 0.087260696 0.024725519 -34.239731 46.246522 6612.1062 8.9581122e+08 0.086382937 0.024241411 -34.303300 46.167818 6613.4562 8.4621640e+08 0.085990485 0.023740960 -34.364056 46.091725 6614.8061 8.0856221e+08 0.085320185 0.023385087 -34.417029 46.022860 6616.1561 7.7613899e+08 0.084227409 0.023306803 -34.470002 45.953995 6617.5061 7.4851478e+08 0.083843894 0.023607048 -34.522975 45.885130 6618.8561 7.1173585e+08 0.083397175 0.024417245 -34.579655 45.811446 6620.2061 6.7368187e+08 0.083174774 0.024833604 -34.640197 45.732743 6621.5561 6.3706180e+08 0.082477179 0.024905141 -34.700739 45.654039 6622.9060 6.0098278e+08 0.081645283 0.024516838 -34.759870 45.577169 6624.2560 5.6903969e+08 0.080539333 0.024999351 -34.812843 45.508305 6625.6060 5.3856772e+08 0.080033493 0.026120733 -34.865816 45.439441 6626.9560 5.1241369e+08 0.078563730 0.025372907 -34.918789 45.370576 6628.3060 4.9072643e+08 0.078043887 0.025827314 -34.971762 45.301712 6629.6559 4.7472775e+08 0.077188030 0.025990510 -35.024735 45.232847 6631.0059 4.6121420e+08 0.075926446 0.025931367 -35.077708 45.163982 6632.3559 4.4709395e+08 0.075063981 0.026075020 -35.130681 45.095117 6633.7059 4.3316563e+08 0.074102474 0.026275491 -35.186539 45.021924 6635.0559 4.1939437e+08 0.073378059 0.026408163 -35.244053 44.946247 6636.4058 3.9620961e+08 0.072523655 0.026392151 -35.301567 44.870571 6637.7558 3.7733335e+08 0.072187086 0.025791238 -35.357574 44.797154 6639.1058 3.6335632e+08 0.071713735 0.025590262 -35.410547 44.728289 6640.4558 3.4950621e+08 0.072485834 0.025214887 -35.463521 44.659425 6641.8058 3.4008764e+08 0.072687338 0.025151036 -35.516494 44.590560 6643.1557 3.2705365e+08 0.072450282 0.025216132 -35.571993 44.516222 6644.5057 3.1441106e+08 0.071929890 0.025398263 -35.629507 44.437518 6645.8557 3.0347177e+08 0.071408378 0.025852545 -35.687021 44.358813 6647.2057 2.8474071e+08 0.071003096 0.026546068 -35.742718 44.282596 6648.5557 2.6700770e+08 0.070510705 0.027336241 -35.793041 44.213732 6649.9056 2.5072384e+08 0.070466217 0.026385315 -35.843365 44.144868 6651.2556 2.4351164e+08 0.070181958 0.026680057 -35.893689 44.076004 6652.6056 2.4598945e+08 0.069947890 0.027417145 -35.942752 44.007134 6653.9556 2.4800909e+08 0.069384791 0.028013544 -35.990435 43.938259 6655.3056 2.4038105e+08 0.068520735 0.027736472 -36.038117 43.869383 6656.6555 2.2657689e+08 0.067431116 0.028598777 -36.085800 43.800508 6658.0055 2.1360716e+08 0.066779589 0.030070861 -36.140380 43.724741 6659.3555 2.0300875e+08 0.065813203 0.031760442 -36.197885 43.646051 6660.7055 1.9250721e+08 0.065119563 0.032267241 -36.255391 43.567361 6662.0555 1.7880843e+08 0.064386249 0.033013157 -36.308985 43.492578 6663.4054 1.6991168e+08 0.063727611 0.032370856 -36.356668 43.423703 6664.7554 1.6431108e+08 0.063509975 0.029442052 -36.404351 43.354827 6666.1054 1.5755388e+08 0.063574123 0.026929133 -36.452034 43.285951 6667.4554 1.5017527e+08 0.063337620 0.027270725 -36.503958 43.210951 6668.8054 1.4387740e+08 0.062652099 0.028183458 -36.558445 43.132247 6670.1553 1.3815076e+08 0.062924747 0.027256668 -36.612932 43.053544 6671.5053 1.3716192e+08 0.062887906 0.026872550 -36.665242 42.977986 6672.8553 1.3286674e+08 0.062819220 0.027375345 -36.712918 42.909122 6674.2053 1.2895893e+08 0.062187213 0.029127956 -36.760593 42.840258 6675.5553 1.2877798e+08 0.060908017 0.030861879 -36.808269 42.771394 6676.9052 1.2437492e+08 0.059750527 0.032297144 -36.858003 42.697175 6678.2552 1.1603671e+08 0.059620928 0.030765913 -36.909463 42.618470 6679.6052 1.0715498e+08 0.059829761 0.029767663 -36.960923 42.539766 6680.9552 96792668. 0.060650220 0.029647679 -37.011472 42.463429 6682.3052 93183692. 0.061192681 0.030657696 -37.059147 42.394565 6683.6551 92851089. 0.061448687 0.032148694 -37.106823 42.325701 6685.0051 90557651. 0.061492460 0.032710245 -37.154498 42.256837 6686.3551 90199555. 0.060765698 0.033967686 -37.203934 42.183396 6687.7051 88127108. 0.059360859 0.033949670 -37.255394 42.104691 6689.0551 88445713. 0.057557072 0.033966462 -37.306854 42.025986 6690.4050 86803042. 0.057205377 0.033069446 -37.357275 41.948871 6691.7550 79148217. 0.056665507 0.032823128 -37.402302 41.880007 6693.1050 74121532. 0.056347815 0.031568067 -37.447329 41.811143 6694.4550 71750607. 0.055904843 0.030623348 -37.492357 41.742279 6695.8050 72026223. 0.055926114 0.029711612 -37.539867 41.669616 6697.1549 70207815. 0.055574022 0.030110873 -37.591327 41.590911 6698.5049 66992587. 0.054864754 0.030910879 -37.642787 41.512207 6699.8549 62521282. 0.053818898 0.030801603 -37.693715 41.434314 6701.2049 57568542. 0.052315503 0.031710065 -37.738743 41.365450 6702.5549 58301910. 0.050915748 0.033319789 -37.783770 41.296586 6703.9048 54894246. 0.044067637 0.035939437 -37.828797 41.227722 6705.2548 54224552. 0.049679887 0.037121628 -37.874870 41.155837 6706.6048 52653531. 0.061298391 0.039499015 -37.923303 41.077133