# # 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 = 56.466759 km # Date (UTC) = 2013-01-17T09:35:07.888 # Date (julian) = 2456309.89939685 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6510.1627 5.5810669e+10 0.095414240 0.035347754 107.96029 44.169059 6512.3397 5.1425203e+10 0.10604742 0.036004225 108.05304 44.036045 6514.5167 4.7581561e+10 0.11692117 0.036660695 108.14579 43.899363 6516.6938 4.4058449e+10 0.12799817 0.037317166 108.23854 43.763656 6518.8708 4.0609966e+10 0.13920120 0.037973636 108.33129 43.631854 6521.0478 3.7445137e+10 0.15058495 0.038630107 108.42404 43.499314 6523.2248 3.4418883e+10 0.15865757 0.039234822 108.51679 43.362632 6525.4018 3.1628091e+10 0.16403980 0.039736361 108.60953 43.226451 6527.5788 2.9022313e+10 0.16851622 0.041136675 108.70228 43.094650 6529.7558 2.6568371e+10 0.17207055 0.043439691 108.79477 42.962849 6531.9328 2.4317913e+10 0.17486095 0.046586376 108.88264 42.831047 6534.1098 2.2224593e+10 0.17573697 0.047975273 108.97051 42.699217 6536.2868 2.0321879e+10 0.17550668 0.048047117 109.05837 42.562533 6538.4638 1.8567201e+10 0.17624452 0.049382535 109.14624 42.425849 6540.6408 1.6944812e+10 0.17583693 0.051156843 109.23411 42.293840 6542.8178 1.5471272e+10 0.17439708 0.051312731 109.32198 42.162040 6544.9948 1.4138514e+10 0.17316838 0.052451377 109.40984 42.030239 6547.1718 1.2975256e+10 0.17084463 0.053352713 109.49771 41.898438 6549.3488 1.1940003e+10 0.16817430 0.054321785 109.58558 41.762437 6551.5259 1.1027968e+10 0.16587074 0.055420334 109.67345 41.625753 6553.7029 1.0164284e+10 0.16333748 0.054981748 109.75735 41.493032 6555.8799 9.3634247e+09 0.16087756 0.054114065 109.84034 41.361233 6558.0569 8.6769648e+09 0.15893272 0.053190840 109.91867 41.238745 6560.2339 8.1247865e+09 0.15626675 0.052063435 109.99555 41.119149 6562.4109 7.6641529e+09 0.15337707 0.050488929 110.07500 40.994405 6564.5879 7.2303811e+09 0.15060905 0.048505164 110.15799 40.862603 6566.7649 6.7743566e+09 0.14837265 0.046750182 110.23915 40.730801 6568.9419 6.3188958e+09 0.14624807 0.044905825 110.31726 40.599000 6571.1189 5.8970113e+09 0.14472913 0.044470798 110.39695 40.465613 6573.2959 5.4986048e+09 0.14281978 0.043420013 110.47994 40.328931 6575.4729 5.1428449e+09 0.14056761 0.041900214 110.56292 40.193597 6577.6499 4.8210995e+09 0.13804890 0.039199485 110.64591 40.061795 6579.8269 4.5163740e+09 0.13535309 0.036615892 110.72778 39.929999 6582.0039 4.2111399e+09 0.13290322 0.035292721 110.80587 39.798220 6584.1810 3.9331495e+09 0.13042140 0.034416939 110.88222 39.668616 6586.3580 3.7037258e+09 0.12796893 0.033166669 110.95057 39.549003 6588.5350 3.5209635e+09 0.12562464 0.033201277 111.01892 39.429391 6590.7120 3.3596241e+09 0.12248033 0.029737687 111.09544 39.299566 6592.8890 3.1892241e+09 0.11950040 0.027210056 111.17355 39.167764 6595.0660 3.0136521e+09 0.11621185 0.025630414 111.25165 39.035963 6597.2430 2.8501842e+09 0.11288428 0.025646048 111.32975 38.904162 6599.4200 2.6955067e+09 0.11091557 0.024954991 111.40786 38.772360 6601.5970 2.5447755e+09 0.11060788 0.027326845 111.48597 38.640558 6603.7740 2.3961486e+09 0.10947857 0.026205061 111.56069 38.505378 6605.9510 2.2558970e+09 0.10939852 0.027462871 111.63392 38.368696 6608.1280 2.1371758e+09 0.10739292 0.023728987 111.70124 38.245763 6610.3050 2.0406370e+09 0.10454724 0.024294428 111.76531 38.130439 6612.4820 1.9575389e+09 0.10276570 0.023960592 111.83362 38.010131 6614.6590 1.8749403e+09 0.10176059 0.023486437 111.91173 37.878329 6616.8361 1.7848410e+09 0.10045510 0.023413517 111.98860 37.746527 6619.0131 1.6918151e+09 0.099856587 0.024529065 112.06182 37.614726 6621.1901 1.6058427e+09 0.099129065 0.025026449 112.13504 37.481922 6623.3671 1.5218846e+09 0.097593421 0.024627819 112.20826 37.345239 6625.5441 1.4415564e+09 0.096350141 0.026046850 112.28072 37.209322 6627.7211 1.3604591e+09 0.094576078 0.025595353 112.34906 37.077521 6629.8981 1.2849832e+09 0.093341015 0.025946728 112.41694 36.947505 6632.0751 1.2260473e+09 0.091484474 0.026041350 112.48101 36.832181 6634.2521 1.1792626e+09 0.089824716 0.026345232 112.54508 36.716857 6636.4291 1.1357374e+09 0.088103618 0.026383112 112.61242 36.588894 6638.6061 1.0847803e+09 0.086835963 0.025645235 112.68076 36.457092 6640.7831 1.0329536e+09 0.087022743 0.025174836 112.75261 36.325292 6642.9601 9.7871869e+08 0.086479939 0.025190987 112.82584 36.193491 6645.1371 9.2904968e+08 0.085270101 0.025515927 112.89579 36.058419 6647.3141 8.8028229e+08 0.084070166 0.026603177 112.96413 35.921735 6649.4911 8.3367767e+08 0.083213056 0.026956665 113.02716 35.798326 6651.6682 8.0084093e+08 0.082952987 0.026996209 113.08696 35.683002 6653.8452 7.7497885e+08 0.082487521 0.027957170 113.14915 35.563061 6656.0222 7.4735394e+08 0.080886518 0.028042874 113.21749 35.431262 6658.1992 7.1949006e+08 0.079564608 0.030414317 113.28583 35.299462 6660.3762 6.8370079e+08 0.078323689 0.031967927 113.35418 35.167660 6662.5532 6.4914155e+08 0.077145053 0.032733901 113.42252 35.035859 6664.7302 6.1838249e+08 0.076437833 0.029534343 113.49086 34.904057 6666.9072 5.9204529e+08 0.076241381 0.027085374 113.55748 34.774473 6669.0842 5.7200020e+08 0.075045845 0.028269217 113.61300 34.659149 6671.2612 5.5303238e+08 0.075138340 0.026869071 113.66853 34.543826 6673.4382 5.3303233e+08 0.074587187 0.028114606 113.73422 34.415428 6675.6152 5.0715449e+08 0.072661718 0.030976740 113.80256 34.283627 6677.7922 4.8775651e+08 0.071252048 0.031231977 113.86727 34.151826 6679.9692 4.6770658e+08 0.071336231 0.029466836 113.93073 34.020024 6682.1462 4.4813003e+08 0.072021870 0.030536280 113.99419 33.888223 6684.3233 4.2752828e+08 0.072118048 0.032670495 114.05765 33.756422 6686.5003 4.0338498e+08 0.071075123 0.034052142 114.12111 33.624620 6688.6773 3.8609787e+08 0.068258783 0.033941526 114.18457 33.492817 6690.8543 3.7022066e+08 0.066950181 0.033017963 114.24327 33.370890 6693.0313 3.5362188e+08 0.066073892 0.031593359 114.29880 33.255566 6695.2083 3.4556622e+08 0.065439245 0.029821215 114.35637 33.135991 6697.3853 3.3430252e+08 0.064861131 0.030140024 114.41983 33.004192 6699.5623 3.2566547e+08 0.063523439 0.031071593 114.48329 32.872392 6701.7393 3.1541079e+08 0.061867877 0.032494214 114.54675 32.740591 6703.9163 2.9934996e+08 0.062228109 0.035968134 114.60943 32.608789 6706.0933 2.8739900e+08 0.062355520 0.038608814 114.66801 32.476988 6708.2703 2.7345460e+08 0.062100536 0.040337950 114.72713 32.345186 6710.4473 2.6290471e+08 0.060826515 0.040584054 114.79059 32.213384 6712.6243 2.5267360e+08 0.058867493 0.042989142 114.85374 32.081582 6714.8013 2.4485070e+08 0.056919392 0.047363653 114.91232 31.949781 6716.9783 2.3695585e+08 0.054977280 0.049842379 114.97097 31.817979 6719.1554 2.2809292e+08 0.052858907 0.051222239 115.03443 31.686178 6721.3324 2.1795175e+08 0.053379653 0.050404041 115.09789 31.554377 6723.5094 2.0533913e+08 0.052042858 0.049653027 115.15663 31.422576 6725.6864 1.9430972e+08 0.048111226 0.041147274 115.21521 31.290776 6727.8634 1.8855212e+08 0.047262129 0.039810115 115.26706 31.174105 6730.0404 1.8324248e+08 0.046075260 0.040434279 115.31832 31.058781 6732.2174 1.7485701e+08 0.044586030 0.043780231 115.37380 30.933949 6734.3944 1.6747008e+08 0.044088034 0.049329870 115.43238 30.802147 6736.5714 1.6214548e+08 0.045906515 0.052515246 115.49096 30.672925 6738.7484 1.6169726e+08 0.046848985 0.061441454 115.54954 30.546005 6740.9254 1.6432653e+08 0.045867602 0.065631284 115.60811 30.416743 6743.1024 1.6310292e+08 0.042296817 0.071738410 115.66669 30.284941 6745.2794 1.6121184e+08 0.039419897 0.078684358 115.72527 30.153140 6747.4564 1.5600006e+08 0.035151521 0.067204026 115.78385 30.021340 6749.6334 1.4449334e+08 0.033828513 0.072104495 115.84056 29.889539 6751.8105 1.3514049e+08 0.030858156 0.074054335 115.89426 29.757738 6753.9875 1.2714571e+08 0.029642074 0.076172888 115.94958 29.627575 6756.1645 1.2330634e+08 0.027262709 0.074590104 116.00815 29.500676 6758.3415 1.1995200e+08 0.027153594 0.074427411 116.06533 29.372378 6760.5185 1.1591522e+08 0.027811536 0.077049987 116.11903 29.240577 6762.6955 1.1147150e+08 0.032670791 0.076928970 116.17388 29.108776 6764.8725 1.1078421e+08 0.035424070 0.079525084 116.23246 28.976975 6767.0495 1.0759025e+08 0.035490787 0.081920340 116.29180 28.841036 6769.2265 1.0159866e+08 0.030804126 0.085003635 116.35445 28.687263 6771.4035 98892593. 0.026991163 0.090283833 116.41322 28.545105 6773.5805 93737675. 0.023218749 0.095564031 116.46692 28.418185 6775.7575 92708497. 0.019389081 0.10084423 116.52062 28.289391 6777.9345 88738472. 0.015608387 0.10612443 116.57432 28.157590 6780.1115 83120494. 0.011862122 0.11140462 116.62801 28.027426 6782.2885 80037659. 0.0080820991 0.11668482 116.68171 27.900505 6784.4656 76782336. 0.0043110014 0.12196502 116.73541 27.772184 6786.6426 73858852. 0.00054191191 0.12724522 116.78910 27.640384 6788.8196 70869975. -0.0032193658 0.13252542 116.84280 27.508583 6790.9966 68531305. -0.0069779400 0.13780561 116.89650 27.376782 6793.1736 65831130. -0.010705148 0.14308581 116.95189 27.241891 6795.3506 63615126. -0.014418983 0.14836601 117.01454 27.093814 6797.5276 61877971. -0.018126799 0.15364621 117.07331 26.952800 6799.7046 59575376. -0.021803265 0.15892641 117.12700 26.820999 6801.8816 58264368. -0.025489240 0.16420660 117.17882 26.691079 6804.0586 55510203. -0.029092433 0.16948680 117.22763 26.564158 6806.2356 53019877. -0.032639214 0.17476700 117.27809 26.435593 6808.4126 52556924. -0.036129700 0.18004720 117.33179 26.303792 6810.5896 51321996. -0.039585262 0.18532739 117.38643 26.167297 6812.7666 49100830. -0.040861666 0.19060759 117.44338 26.019221 6814.9436 48123805. -0.046949687 0.19588779 117.49860 25.879811 6817.1206 47474324. -0.055510350 0.20116799 117.55229 25.748010