# # 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 = 53.486726 km # Date (UTC) = 2014-01-03T09:47:17.108 # Date (julian) = 2456660.90783690 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6487.9947 5.7918072e+10 0.019242884 0.028663045 107.54020 35.334644 6489.9726 5.5483552e+10 0.024152045 0.029259487 107.59539 35.238061 6491.9506 5.2808637e+10 0.028999300 0.029855928 107.65691 35.133966 6493.9285 4.9913272e+10 0.033752816 0.030452370 107.71900 35.029188 6495.9065 4.6682393e+10 0.038291635 0.031048812 107.77977 34.924409 6497.8844 4.3406999e+10 0.042490072 0.031645253 107.83799 34.819631 6499.8623 4.0540406e+10 0.046369499 0.032241695 107.89620 34.714852 6501.8403 3.8168900e+10 0.050144510 0.032838137 107.95211 34.618946 6503.8182 3.6292901e+10 0.054237122 0.033434578 108.00730 34.525799 6505.7961 3.4907986e+10 0.059113331 0.034031020 108.06250 34.432652 6507.7741 3.3358686e+10 0.064881642 0.034627461 108.12030 34.329455 6509.7520 3.1652866e+10 0.071786090 0.035223903 108.17851 34.224677 6511.7300 2.9886978e+10 0.080073311 0.035820345 108.23586 34.123245 6513.7079 2.8286665e+10 0.090122991 0.036416786 108.29105 34.030110 6515.6858 2.7012305e+10 0.10222891 0.037013228 108.34624 33.936976 6517.6638 2.5825111e+10 0.11613423 0.037609670 108.40260 33.837813 6519.6417 2.4560608e+10 0.13143465 0.038206111 108.46081 33.729153 6521.6196 2.3162905e+10 0.14779450 0.038802553 108.51902 33.620493 6523.5976 2.1633822e+10 0.15905534 0.039327219 108.57723 33.514983 6525.5755 2.0092491e+10 0.16713527 0.039716533 108.63544 33.410207 6527.5534 1.8668646e+10 0.17273754 0.041118279 108.69133 33.308160 6529.5314 1.7448141e+10 0.17506230 0.043082230 108.73962 33.215025 6531.5093 1.6460815e+10 0.17630990 0.045969999 108.78791 33.121890 6533.4873 1.5541023e+10 0.17713651 0.047726656 108.83953 33.024849 6535.4652 1.4523853e+10 0.17640991 0.048022498 108.89774 32.920071 6537.4431 1.3487196e+10 0.17601142 0.048894142 108.95595 32.815292 6539.4211 1.2486552e+10 0.17496790 0.050153319 109.00926 32.719337 6541.3990 1.1696356e+10 0.17320492 0.051197135 109.06101 32.626190 6543.3769 1.1025596e+10 0.17158551 0.051480823 109.11276 32.533043 6545.3549 1.0369599e+10 0.17023419 0.052458746 109.16672 32.429893 6547.3328 9.6870336e+09 0.16888702 0.053413928 109.22105 32.325115 6549.3108 9.0004178e+09 0.16721133 0.054282960 109.27367 32.223633 6551.2887 8.4356615e+09 0.16589659 0.055337085 109.32197 32.130498 6553.2666 7.9649392e+09 0.16469767 0.055201038 109.37026 32.037363 6555.2446 7.5443785e+09 0.16318799 0.054647874 109.42236 31.939756 6557.2225 7.1136379e+09 0.16137422 0.053726644 109.48057 31.834977 6559.2004 6.6685111e+09 0.15895416 0.052364558 109.53878 31.730199 6561.1784 6.2685577e+09 0.15644161 0.051284783 109.58898 31.634820 6563.1563 5.9406129e+09 0.15418733 0.049747553 109.63728 31.541686 6565.1342 5.6664160e+09 0.15185741 0.048165958 109.68557 31.448551 6567.1122 5.4048990e+09 0.14951506 0.046522333 109.73935 31.344828 6569.0901 5.1225973e+09 0.14733160 0.044858290 109.79369 31.240034 6571.0681 4.8356306e+09 0.14596983 0.044484687 109.84488 31.140251 6573.0460 4.5890501e+09 0.14463179 0.043620572 109.88972 31.050566 6575.0239 4.3824821e+09 0.14307257 0.042350697 109.93456 30.960881 6577.0019 4.1969385e+09 0.14111908 0.040217438 109.98351 30.864665 6578.9798 4.0184069e+09 0.13867720 0.037102388 110.03784 30.759887 6580.9577 3.8272133e+09 0.13689801 0.035635662 110.09216 30.655108 6582.9357 3.6220847e+09 0.13569961 0.035039170 110.14649 30.550330 6584.9136 3.4221335e+09 0.13426536 0.034017830 110.20082 30.445553 6586.8916 3.2382069e+09 0.13272301 0.033159771 110.25251 30.344023 6588.8695 3.0922414e+09 0.13115939 0.033089562 110.29735 30.250888 6590.8474 2.9867388e+09 0.12898758 0.029485721 110.34220 30.157753 6592.8254 2.8814168e+09 0.12705081 0.027271846 110.39064 30.060194 6594.8033 2.7615009e+09 0.12489274 0.025731550 110.44497 29.955416 6596.7812 2.6303004e+09 0.12247887 0.025723722 110.49930 29.850638 6598.7592 2.5009480e+09 0.12075187 0.025044709 110.54602 29.755199 6600.7371 2.3968632e+09 0.12051401 0.026505238 110.59086 29.662052 6602.7150 2.3111727e+09 0.11948496 0.026906440 110.63571 29.568905 6604.6930 2.2236365e+09 0.11828113 0.026482748 110.68562 29.468748 6606.6709 2.1291406e+09 0.11718275 0.026298339 110.73607 29.367850 6608.6489 2.0298863e+09 0.11434420 0.023715216 110.78468 29.269496 6610.6268 1.9406881e+09 0.11140627 0.024601867 110.82953 29.176361 6612.6047 1.8719243e+09 0.10986328 0.023868919 110.87437 29.083227 6614.5827 1.8145505e+09 0.10883683 0.023539056 110.92162 28.985103 6616.5606 1.7518155e+09 0.10769983 0.023370286 110.97207 28.880325 6618.5385 1.6820035e+09 0.10740373 0.024177460 111.02251 28.775547 6620.5165 1.6091450e+09 0.10706402 0.024933633 111.07296 28.674073 6622.4944 1.5359443e+09 0.10614403 0.024626395 111.12341 28.573175 6624.4724 1.4685936e+09 0.10486925 0.025115158 111.17233 28.474407 6626.4503 1.4091374e+09 0.10366490 0.026017192 111.21717 28.381260 6628.4282 1.3609556e+09 0.10247506 0.025876960 111.26202 28.288113 6630.4062 1.3230051e+09 0.10112150 0.025929303 111.30898 28.190591 6632.3841 1.2867524e+09 0.099638134 0.026078402 111.35942 28.085812 6634.3620 1.2407209e+09 0.098305741 0.026353251 111.40987 27.981034 6636.3400 1.1891138e+09 0.096975470 0.026417726 111.45722 27.879358 6638.3179 1.1334836e+09 0.096132027 0.025657792 111.50379 27.778461 6640.2958 1.0837484e+09 0.096278990 0.025234454 111.54997 27.679290 6642.2738 1.0453698e+09 0.096140342 0.025162900 111.59481 27.586155 6644.2517 1.0122296e+09 0.094992539 0.025370812 111.63966 27.493020 6646.2297 9.8502819e+08 0.093800720 0.026039026 111.68506 27.397375 6648.2076 9.5387077e+08 0.092652159 0.027103250 111.73163 27.296477 6650.1855 9.1435753e+08 0.091882387 0.026297711 111.77819 27.195580 6652.1635 8.7495239e+08 0.091193470 0.027295498 111.82476 27.091785 6654.1414 8.3309870e+08 0.090365289 0.027975985 111.87133 26.987007 6656.1193 8.0123408e+08 0.088571398 0.028128166 111.91761 26.884788 6658.0973 7.7345208e+08 0.087243188 0.030233609 111.96245 26.795103 6660.0752 7.4711942e+08 0.085996992 0.031694367 112.00729 26.705418 6662.0532 7.2642993e+08 0.084634345 0.033014448 112.05260 26.611645 6664.0311 7.0165703e+08 0.083426570 0.032092325 112.09918 26.506851 6666.0090 6.8033088e+08 0.083562139 0.026910354 112.14576 26.402057 6667.9870 6.5443015e+08 0.082944704 0.027465987 112.19233 26.299968 6669.9649 6.2766465e+08 0.082414158 0.027364680 112.23889 26.199070 6671.9428 6.0526977e+08 0.082153422 0.026878785 112.28485 26.099083 6673.9208 5.8232203e+08 0.081417591 0.028836306 112.32625 26.005948 6675.8987 5.6819013e+08 0.079226791 0.031519723 112.36764 25.912813 6677.8767 5.5218588e+08 0.078075820 0.031111968 112.41016 25.817985 6679.8546 5.3474202e+08 0.077998259 0.029561579 112.45673 25.717087 6681.8325 5.1651591e+08 0.078581960 0.030296058 112.50329 25.616189 6683.8105 4.9730686e+08 0.078712176 0.032376320 112.54737 25.515291 6685.7884 4.8059942e+08 0.078136840 0.033537580 112.59006 25.414393 6687.7663 4.5989584e+08 0.075920826 0.033915508 112.63300 25.313245 6689.7443 4.4062404e+08 0.073761804 0.033346060 112.67957 25.208467 6691.7222 4.2057804e+08 0.072699471 0.032830869 112.72614 25.103688 6693.7001 4.0258892e+08 0.071716284 0.031363896 112.77271 25.000803 6695.6781 3.9040955e+08 0.071302898 0.029734918 112.81928 24.899906 6697.6560 3.7855502e+08 0.070433114 0.030174286 112.86585 24.799009 6699.6340 3.6925220e+08 0.068865328 0.031005472 112.90889 24.698098 6701.6119 3.5818498e+08 0.067103781 0.032307267 112.95158 24.597185 6703.5898 3.4266401e+08 0.067219909 0.035151177 112.99384 24.500025 6705.5678 3.3300098e+08 0.067255049 0.037677981 113.03523 24.410340 6707.5457 3.2508057e+08 0.066857187 0.040108655 113.07662 24.320655 6709.5236 3.1387341e+08 0.066010441 0.040799482 113.11858 24.224401 6711.5016 3.0406188e+08 0.064177821 0.041262890 113.16126 24.119622 6713.4795 2.9017250e+08 0.062291811 0.045420925 113.20395 24.014843 6715.4575 2.7987382e+08 0.060564981 0.047846456 113.24664 23.913395 6717.4354 2.7579008e+08 0.058550594 0.049847338 113.28933 23.812498 6719.4133 2.6786179e+08 0.056740992 0.050977150 113.33311 23.711600 6721.3913 2.6049702e+08 0.057002856 0.050421788 113.37968 23.610703 6723.3692 2.4923556e+08 0.055671765 0.049574853 113.42625 23.509805 6725.3471 2.4023381e+08 0.051670135 0.041359181 113.47008 23.408908 6727.3251 2.3221091e+08 0.050366246 0.040527296 113.51277 23.308010 6729.3030 2.2453990e+08 0.049782075 0.040843464 113.55546 23.207112 6731.2809 2.1656220e+08 0.048094447 0.042309160 113.59814 23.106214 6733.2589 2.0748992e+08 0.047038017 0.045329860 113.64083 23.005316 6735.2368 1.9857813e+08 0.047482300 0.049544835 113.68352 22.904419 6737.2148 1.9203523e+08 0.048924682 0.054819679 113.72620 22.803522 6739.1927 1.8998214e+08 0.049348677 0.063062373 113.76889 22.702625 6741.1706 1.8573049e+08 0.048079552 0.066245340 113.81158 22.601713 6743.1486 1.8510150e+08 0.044557396 0.072049675 113.85427 22.500800 6745.1265 1.7809594e+08 0.041784853 0.078620068 113.89939 22.394163 6747.1044 1.6557098e+08 0.037367020 0.067325206 113.94818 22.278849 6749.0824 1.5574278e+08 0.037479909 0.072255378 113.99609 22.165594 6751.0603 1.4539361e+08 0.034881696 0.073737173 114.03878 22.064696 6753.0383 1.4161175e+08 0.032391357 0.073101081 114.08147 21.963798 6755.0162 1.3897556e+08 0.030815997 0.074598248 114.12196 21.862901 6756.9941 1.2971092e+08 0.028434557 0.076724942 114.16077 21.762002 6758.9721 1.2370283e+08 0.029598065 0.075760878 114.19957 21.661104 6760.9500 1.1708770e+08 0.030067425 0.077872877 114.24222 21.560207 6762.9279 1.1265776e+08 0.035274309 0.076554007 114.28490 21.459309 6764.9059 1.1073622e+08 0.037671436 0.079526683 114.32759 21.358412 6766.8838 1.0555595e+08 0.037913288 0.081712943 114.37028 21.257514 6768.8617 1.0334208e+08 0.033705601 0.083956796 114.41297 21.156617 6770.8397 1.0195282e+08 0.030075749 0.088916305 114.45704 21.043677 6772.8176 94701015. 0.026717809 0.093713671 114.50140 20.928363 6774.7956 89834257. 0.023306204 0.098511038 114.54478 20.821419 6776.7735 86502716. 0.019850161 0.10330840 114.58747 20.720523 6778.7514 82151217. 0.016453235 0.10810577 114.63014 20.619626 6780.7294 79312098. 0.013033679 0.11290314 114.66895 20.518728 6782.7073 70820956. 0.0099785362 0.11770050 114.70776 20.417829 6784.6852 66841319. 0.0069543850 0.12249787 114.75083 20.310778 6786.6632 65861058. 0.0034391153 0.12729524 114.79961 20.195464 6788.6411 61550915. 0.0027149978 0.13209260 114.84668 20.083300 6790.6191 58105260. -0.0040155214 0.13688997 114.88549 19.986283 6792.5970 53510236. -0.013889026 0.14168734 114.92430 19.889266