# # 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 = 68.582690 km # Date (UTC) = 2013-11-15T10:18:23.461 # Date (julian) = 2456611.92943821 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6493.7434 5.5525711e+10 0.039050379 0.030396552 99.607616 33.621475 6496.4914 5.1036818e+10 0.047830727 0.031225208 99.696673 33.418319 6499.2394 4.6959092e+10 0.056266676 0.032053865 99.770618 33.233462 6501.9875 4.3209476e+10 0.064342584 0.032882521 99.851987 33.034367 6504.7355 3.9817935e+10 0.072089444 0.033711178 99.936949 32.830882 6507.4835 3.6660465e+10 0.079678103 0.034539834 100.01706 32.646025 6510.2315 3.4145403e+10 0.087437333 0.035368491 100.09353 32.464795 6512.9795 3.1875715e+10 0.095722911 0.036197147 100.16747 32.286100 6515.7275 2.9472996e+10 0.10465456 0.037025804 100.25332 32.078634 6518.4755 2.7093413e+10 0.11451266 0.037854460 100.32897 31.883732 6521.2236 2.4684206e+10 0.12546540 0.038683117 100.39675 31.698875 6523.9716 2.2543298e+10 0.13213042 0.039419914 100.48213 31.491525 6526.7196 2.0516725e+10 0.13769670 0.040422488 100.56148 31.299753 6529.4676 1.8647639e+10 0.14277670 0.042980630 100.63542 31.121058 6532.2156 1.7129411e+10 0.14894056 0.046864314 100.70359 30.942362 6534.9636 1.5876545e+10 0.15434723 0.048214122 100.77331 30.761724 6537.7116 1.4655559e+10 0.15903480 0.049020734 100.84726 30.576867 6540.4597 1.3340288e+10 0.16364084 0.051071256 100.92475 30.375680 6543.2077 1.2056443e+10 0.16570047 0.051436398 101.00227 30.176194 6545.9557 1.0900902e+10 0.16570675 0.052464129 101.07621 29.997499 6548.7037 9.9876932e+09 0.16493198 0.053877795 101.14597 29.818804 6551.4517 9.2432095e+09 0.16310060 0.055394310 101.21375 29.640108 6554.1997 8.5790386e+09 0.16084146 0.054836572 101.28153 29.461413 6556.9477 7.9947896e+09 0.15886060 0.053873789 101.34931 29.282718 6559.6958 7.4195594e+09 0.15623597 0.052308649 101.41710 29.104022 6562.4438 6.8326245e+09 0.15349238 0.050457636 101.49402 28.901210 6565.1918 6.2656928e+09 0.15123317 0.048100619 101.56838 28.705196 6567.9398 5.7753103e+09 0.14959932 0.045822560 101.63616 28.526500 6570.6878 5.4028350e+09 0.14828914 0.044632592 101.69903 28.342902 6573.4358 5.0846088e+09 0.14667307 0.043307737 101.76172 28.159110 6576.1838 4.7778645e+09 0.14462904 0.041159783 101.82950 27.980414 6578.9319 4.4816282e+09 0.14215725 0.037178097 101.89389 27.801719 6581.6799 4.2003728e+09 0.14024125 0.035390733 101.95551 27.623024 6584.4279 3.9568597e+09 0.13823929 0.034282423 102.02284 27.450042 6587.1759 3.7298000e+09 0.13628071 0.033197343 102.08875 27.275633 6589.9239 3.5200970e+09 0.13400699 0.031213006 102.15036 27.096938 6592.6719 3.3221690e+09 0.13091634 0.027420874 102.21618 26.918243 6595.4199 3.1358765e+09 0.12752364 0.025667121 102.28360 26.739547 6598.1680 2.9608965e+09 0.12436458 0.025326974 102.34522 26.560851 6600.9160 2.7921557e+09 0.12300322 0.026872954 102.40684 26.382155 6603.6640 2.6431335e+09 0.12081882 0.026270193 102.46846 26.203461 6606.4120 2.4989927e+09 0.11961991 0.026763602 102.53008 26.024765 6609.1600 2.3719432e+09 0.11616205 0.023753465 102.59170 25.846070 6611.9080 2.2594520e+09 0.11350000 0.024379398 102.65332 25.667375 6614.6560 2.1457284e+09 0.11283343 0.023488500 102.71494 25.492173 6617.4041 2.0437995e+09 0.11179378 0.023573215 102.77656 25.319639 6620.1521 1.9349781e+09 0.11152345 0.024816205 102.83817 25.141289 6622.9001 1.8333783e+09 0.11022992 0.024518418 102.89979 24.962594 6625.6481 1.7376828e+09 0.10880588 0.026170991 102.96142 24.783898 6628.3961 1.6481447e+09 0.10701824 0.025863924 103.01873 24.609506 6631.1441 1.5663290e+09 0.10516476 0.025945407 103.07465 24.436508 6633.8922 1.4832856e+09 0.10354172 0.026308013 103.13627 24.257813 6636.6402 1.4099511e+09 0.10183432 0.026301150 103.19789 24.079117 6639.3882 1.3347809e+09 0.10089530 0.025489331 103.25951 23.900423 6642.1362 1.2685021e+09 0.10123263 0.025157269 103.31601 23.726839 6644.8842 1.2095105e+09 0.099898746 0.025439170 103.37147 23.553030 6647.6322 1.1535343e+09 0.098252998 0.026770648 103.42693 23.374334 6650.3802 1.1036323e+09 0.096944007 0.026342284 103.48599 23.199238 6653.1283 1.0532015e+09 0.095981134 0.027591142 103.54761 23.026705 6655.8763 1.0016322e+09 0.093615412 0.027972291 103.60330 22.848249 6658.6243 9.5342831e+08 0.091170381 0.031168254 103.65876 22.671638 6661.3723 9.0600535e+08 0.088917038 0.032724568 103.71422 22.499106 6664.1203 8.6433538e+08 0.086756245 0.031765879 103.77408 22.322163 6666.8683 8.2737500e+08 0.086251649 0.027077799 103.83513 22.144037 6669.6163 7.9203790e+08 0.084977027 0.027722679 103.89059 21.971503 6672.3644 7.5387631e+08 0.084802026 0.027090785 103.94604 21.796076 6675.1124 7.1638452e+08 0.083238499 0.030013583 104.00150 21.617382 6677.8604 6.8006096e+08 0.081305230 0.031135095 104.05696 21.443904 6680.6084 6.4727901e+08 0.081726038 0.029572795 104.11241 21.271377 6683.3564 6.1874698e+08 0.082407900 0.031710906 104.16786 21.098874 6686.1044 5.8977456e+08 0.081717955 0.033821841 104.22332 20.922650 6688.8524 5.6390455e+08 0.078169503 0.033981963 104.27877 20.743953 6691.6005 5.4314809e+08 0.076716937 0.032859595 104.32218 20.592354 6694.3485 5.2440894e+08 0.075475575 0.030772629 104.36684 20.438709 6697.0965 5.0203263e+08 0.074866664 0.030103475 104.42230 20.266176 6699.8445 4.8208524e+08 0.072962584 0.030811202 104.47776 20.093643 6702.5925 4.5975757e+08 0.071285013 0.033349854 104.53322 19.921110 6705.3405 4.4143231e+08 0.071327824 0.037273995 104.58866 19.748603 6708.0885 4.2256287e+08 0.070694584 0.040139997 104.64254 19.574524 6710.8366 4.0225148e+08 0.068659205 0.040660240 104.69184 19.395827 6713.5846 3.8800256e+08 0.065701046 0.045800891 104.74503 19.221023 6716.3326 3.7412513e+08 0.063045061 0.048891227 104.80043 19.048489 6719.0806 3.6251455e+08 0.059849855 0.051293263 104.84973 18.875957 6721.8286 3.4453067e+08 0.059946203 0.050553565 104.90140 18.703424 6724.5766 3.2936540e+08 0.056057713 0.045111442 104.95686 18.530890 6727.3246 3.1547549e+08 0.053115176 0.040527869 105.00761 18.358356 6730.0727 3.0458692e+08 0.051771154 0.040478525 105.05907 18.181793 6732.8207 2.9350578e+08 0.050007943 0.043891292 105.12377 17.980499 6735.5687 2.7894344e+08 0.050570508 0.049897135 105.17693 17.800750 6738.3167 2.6764643e+08 0.052185852 0.059064676 105.22623 17.628215 6741.0647 2.5525205e+08 0.051112747 0.065943263 105.27552 17.455683 6743.8127 2.4482791e+08 0.045776804 0.076530095 105.32792 17.283149 6746.5607 2.3458018e+08 0.041875657 0.072467995 105.38337 17.110616 6749.3088 2.2613713e+08 0.039265122 0.072193395 105.43341 16.943508 6752.0568 2.1809130e+08 0.034650281 0.074068779 105.48270 16.775549 6754.8048 2.1051249e+08 0.032767223 0.074919271 105.53200 16.603017 6757.5528 2.0236872e+08 0.030183681 0.075062448 105.58129 16.430483 6760.3008 1.9446229e+08 0.030923673 0.076634915 105.63058 16.257948 6763.0488 1.8790390e+08 0.035972776 0.076586481 105.67988 16.085414 6765.7968 1.7877315e+08 0.038503297 0.079676660 105.72918 15.912881 6768.5449 1.7323241e+08 0.034235749 0.082816562 105.77847 15.740348 6771.2929 1.6423199e+08 0.028683242 0.090015491 105.83406 15.551287 6774.0409 1.5574515e+08 0.023433062 0.096680634 105.88849 15.365275 6776.7889 1.4805559e+08 0.018168014 0.10334578 105.93779 15.192741 6779.5369 1.3881714e+08 0.012867289 0.11001092 105.98708 15.020207 6782.2849 1.3441443e+08 0.0075995706 0.11667606 106.03638 14.848470 6785.0329 1.3071230e+08 0.0023435426 0.12334121 106.08567 14.682099 6787.7810 1.2877755e+08 -0.0028429136 0.13000635 106.13497 14.512607 6790.5290 1.2760111e+08 -0.0079577356 0.13667149 106.18427 14.340073 6793.2770 1.2427936e+08 -0.013072981 0.14333664 106.24082 14.148478 6796.0250 1.1770307e+08 -0.018261767 0.15000178 106.29125 13.965000 6798.7730 1.0941391e+08 -0.023530055 0.15666692 106.33438 13.792467 6801.5210 1.0303261e+08 -0.028758105 0.16333207 106.38287 13.625293 6804.2690 1.0084677e+08 -0.033804847 0.16999721 106.43420 13.450309 6807.0171 96463057. -0.038937962 0.17666235 106.49170 13.249053 6809.7651 94177223. -0.043947733 0.18332750 106.53691 13.077645 6812.5131 89973888. -0.049048305 0.18999264 106.58147 12.909840 6815.2611 86002431. -0.054120135 0.19665778 106.63077 12.737307 6818.0091 85363012. -0.058934669 0.20332293 106.68508 12.551617 6820.7571 79763596. -0.064074345 0.20998807 106.73944 12.362233 6823.5052 79624577. -0.068771211 0.21665321 106.78258 12.189700 6826.2532 77715552. -0.073564110 0.22331836 106.83428 12.004309 6829.0012 75442584. -0.078347970 0.22998350 106.88884 11.815889 6831.7492 72740081. -0.083128895 0.23664864 106.93197 11.649517 6834.4972 66727424. -0.088180138 0.24331379 106.98348 11.467000 6837.2452 64671744. -0.092834925 0.24997893 107.03824 11.277019 6839.9932 62527389. -0.097466900 0.25664407 107.08138 11.104485 6842.7413 61676843. -0.10194654 0.26330922 107.13268 10.919693 6845.4893 60724406. -0.10641937 0.26997436 107.18892 10.725594 6848.2373 57422037. -0.11108698 0.27663950 107.23923 10.531527 6850.9853 55898716. -0.11556649 0.28330465 107.28390 10.359229 6853.7333 55040063. -0.11998051 0.28996979 107.32938 10.188332 6856.4813 53293614. -0.12449171 0.29663493 107.38690 9.9942263 6859.2293 54535296. -0.12880636 0.30330008 107.43886 9.8001211 6861.9774 51310107. -0.13355480 0.30996522 107.48644 9.6165868 6864.7254 45624005. -0.13863736 0.31663036 107.52957 9.4502152 6867.4734 43363159. -0.14356504 0.32329551 107.58361 9.2628139 6870.2214 41280471. -0.14868802 0.32996065 107.63849 9.0687086 6872.9694 42757431. -0.15362828 0.33662579 107.68881 8.8746028 6875.7174 41979553. -0.15918840 0.34329094 107.73913 8.6804963 6878.4654 37346033. -0.16604817 0.34995608 107.78945 8.4864128 6881.2135 35350276. -0.17359961 0.35662122 107.83977 8.2923384 6883.9615 34609118. -0.18266369 0.36328637 107.89009 8.0982334 6886.7095 34031046. -0.19647689 0.36995151 107.94619 7.9041265 6889.4575 35739972. -0.24612108 0.37661665 108.00074 7.7100207 6892.2055 38493645. -0.21135277 0.38328180 108.05106 7.5159167 6894.9535 42046018. -0.14474047 0.38994694 108.10139 7.3218098