# # 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 = 64.104063 km # Date (UTC) = 2014-11-27T10:17:42.938 # Date (julian) = 2456988.92896919 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6486.3179 1.6794045e+11 0.021504185 0.028157417 100.98506 28.646103 6488.7193 1.3474974e+11 0.030084688 0.028881557 101.04506 28.512935 6491.1208 1.0943909e+11 0.038396753 0.029605698 101.10631 28.381012 6493.5222 8.9985739e+10 0.046344332 0.030329838 101.16468 28.249077 6495.9236 7.4645763e+10 0.053884799 0.031053979 101.22123 28.117134 6498.3250 6.2914158e+10 0.060879607 0.031778120 101.28008 27.982887 6500.7264 5.4087412e+10 0.067273990 0.032502260 101.34133 27.846253 6503.1278 4.7148520e+10 0.073097254 0.033226401 101.40085 27.711356 6505.5293 4.1539186e+10 0.078260243 0.033950541 101.45739 27.579432 6507.9307 3.6897604e+10 0.082768724 0.034674682 101.51238 27.451119 6510.3321 3.3368859e+10 0.086948722 0.035398822 101.56263 27.333857 6512.7335 3.0644254e+10 0.091558265 0.036122963 101.61289 27.216595 6515.1349 2.8352039e+10 0.097486200 0.036847104 101.66854 27.082701 6517.5363 2.6174609e+10 0.10544855 0.037571244 101.72507 26.946066 6519.9377 2.4003759e+10 0.11601088 0.038295385 101.78161 26.812899 6522.3392 2.1985827e+10 0.12882578 0.039006065 101.83815 26.680976 6524.7406 2.0127818e+10 0.13963900 0.039690055 101.89180 26.549053 6527.1420 1.8474774e+10 0.15176556 0.040819561 101.94363 26.417131 6529.5434 1.6973829e+10 0.16283978 0.043101393 101.99777 26.285208 6531.9448 1.5597752e+10 0.17156519 0.046603888 102.05430 26.153285 6534.3462 1.4343923e+10 0.17467568 0.048041415 102.11084 26.021355 6536.7477 1.3192774e+10 0.17405475 0.048459452 102.16739 25.889413 6539.1491 1.2168235e+10 0.17264713 0.049824081 102.22278 25.756313 6541.5505 1.1202468e+10 0.17066857 0.051148009 102.27460 25.619678 6543.9519 1.0323164e+10 0.16825799 0.051631726 102.32624 25.485447 6546.3533 9.5940808e+09 0.16632133 0.052755255 102.37649 25.368184 6548.7547 8.9646265e+09 0.16464222 0.053893037 102.42675 25.250921 6551.1562 8.4016535e+09 0.16313498 0.055290564 102.47816 25.122864 6553.5576 7.8455472e+09 0.16173335 0.055054783 102.52999 24.990942 6555.9590 7.3070371e+09 0.15970641 0.054047586 102.58182 24.859019 6558.3604 6.7969431e+09 0.15813678 0.052932197 102.63364 24.727096 6560.7618 6.3376588e+09 0.15565890 0.051587431 102.68779 24.595172 6563.1632 5.9070703e+09 0.15357987 0.049739542 102.74432 24.463249 6565.5647 5.5036900e+09 0.15154165 0.047677229 102.79912 24.331326 6567.9661 5.1324415e+09 0.15018148 0.045800354 102.85095 24.199403 6570.3675 4.8001021e+09 0.14888582 0.044765285 102.90136 24.071091 6572.7689 4.5273703e+09 0.14718427 0.043789828 102.94743 23.953812 6575.1703 4.2960830e+09 0.14499416 0.042203829 102.99350 23.836534 6577.5717 4.0792320e+09 0.14229682 0.039322323 103.04452 23.706675 6579.9731 3.8473805e+09 0.13943740 0.036535516 103.09635 23.574753 6582.3746 3.6244852e+09 0.13669000 0.035191866 103.14818 23.446300 6584.7760 3.4184996e+09 0.13435876 0.034092807 103.20000 23.319089 6587.1774 3.2360187e+09 0.13239192 0.033197673 103.24894 23.188984 6589.5788 3.0652702e+09 0.13072328 0.031897672 103.29605 23.057060 6591.9802 2.9012359e+09 0.12865742 0.028095840 103.34548 22.925137 6594.3816 2.7469244e+09 0.12664604 0.025963021 103.39731 22.793214 6596.7831 2.5903057e+09 0.12440092 0.025723714 103.44914 22.661291 6599.1845 2.4493026e+09 0.12302864 0.024940825 103.50096 22.529368 6601.5859 2.3174201e+09 0.12338984 0.027321610 103.55034 22.402093 6603.9873 2.2087100e+09 0.12221660 0.026078792 103.59222 22.289003 6606.3887 2.1182137e+09 0.12194488 0.026805445 103.63411 22.175913 6608.7901 2.0322429e+09 0.11913794 0.023711480 103.68453 22.046640 6611.1916 1.9496077e+09 0.11611018 0.024836302 103.73636 21.914717 6613.5930 1.8593414e+09 0.11513764 0.023791152 103.78472 21.782794 6615.9944 1.7679563e+09 0.11360879 0.023282126 103.83183 21.650871 6618.3958 1.6833965e+09 0.11298783 0.024069672 103.88184 21.521843 6620.7972 1.6029165e+09 0.11212604 0.025024099 103.93367 21.394631 6623.1986 1.5283409e+09 0.11042997 0.024565416 103.98318 21.265102 6625.6000 1.4564474e+09 0.10881023 0.026113641 104.03029 21.133178 6628.0015 1.3811397e+09 0.10684062 0.025703689 104.07547 21.006672 6630.4029 1.3219807e+09 0.10492427 0.025929295 104.11735 20.889410 6632.8043 1.2735274e+09 0.10283146 0.026128787 104.15924 20.772148 6635.2057 1.2313655e+09 0.10075823 0.026430637 104.21088 20.645118 6637.6071 1.1883039e+09 0.099007336 0.025864060 104.26270 20.517907 6640.0085 1.1359361e+09 0.098765881 0.025269607 104.31048 20.386646 6642.4100 1.0880731e+09 0.098912815 0.025168472 104.35760 20.254722 6644.8114 1.0391055e+09 0.098104121 0.025431298 104.40472 20.126257 6647.2128 9.9699133e+08 0.097008243 0.026549815 104.45184 19.999028 6649.6142 9.5345403e+08 0.096134476 0.026787035 104.49896 19.868913 6652.0156 9.1453870e+08 0.095694793 0.027254819 104.54608 19.736990 6654.4170 8.8016894e+08 0.094833772 0.027858564 104.59319 19.607386 6656.8185 8.4128863e+08 0.092848291 0.028741769 104.64030 19.480174 6659.2199 8.0509516e+08 0.091174918 0.031788734 104.68742 19.352963 6661.6213 7.6707766e+08 0.089707539 0.032851383 104.73453 19.225751 6664.0227 7.3480356e+08 0.088131008 0.032123027 104.78165 19.097375 6666.4241 7.0129713e+08 0.088109752 0.026991240 104.82877 18.965452 6668.8255 6.7209279e+08 0.086772393 0.028201312 104.87471 18.835882 6671.2269 6.4646792e+08 0.086581549 0.026868582 104.91240 18.722807 6673.6284 6.2581897e+08 0.085663309 0.028398982 104.95009 18.609732 6676.0298 6.0618376e+08 0.083001954 0.031732917 104.99473 18.486238 6678.4312 5.8383737e+08 0.081634832 0.030648212 105.04184 18.359026 6680.8326 5.6256884e+08 0.082028814 0.029621212 105.08896 18.231815 6683.2340 5.4083706e+08 0.082350415 0.031531551 105.13607 18.104605 6685.6354 5.1792900e+08 0.081651850 0.033376023 105.18088 17.975065 6688.0369 4.9379137e+08 0.078917789 0.033793699 105.22328 17.843121 6690.4383 4.7213026e+08 0.076722236 0.033065637 105.26743 17.712928 6692.8397 4.5714319e+08 0.075581097 0.031790246 105.31455 17.585717 6695.2411 4.4082025e+08 0.074929366 0.029815185 105.36050 17.458505 6697.6425 4.2487386e+08 0.074222334 0.030172578 105.40290 17.331294 6700.0439 4.0625147e+08 0.072610140 0.030700309 105.44590 17.204083 6702.4454 3.8875057e+08 0.071210421 0.033232348 105.49301 17.076872 6704.8468 3.7459308e+08 0.071517296 0.036593362 105.54010 16.949661 6707.2482 3.5661504e+08 0.071188130 0.040151274 105.58252 16.822450 6709.6496 3.4624072e+08 0.070182848 0.040719365 105.62492 16.695238 6712.0510 3.3882555e+08 0.067765605 0.041924682 105.67147 16.568026 6714.4524 3.3015590e+08 0.065375180 0.047337422 105.71859 16.440814 6716.8538 3.1707739e+08 0.063181451 0.049659002 105.76673 16.299829 6719.2553 2.9845860e+08 0.060888023 0.051127318 105.81519 16.154441 6721.6567 2.8392429e+08 0.061169905 0.050501760 105.85819 16.025425 6724.0581 2.6971939e+08 0.058966876 0.049441513 105.90060 15.898214 6726.4595 2.5850650e+08 0.054967355 0.040955512 105.94667 15.771003 6728.8609 2.4929656e+08 0.054267048 0.040848318 105.99378 15.643791 6731.2623 2.4136304e+08 0.052158882 0.042272139 106.03781 15.516580 6733.6638 2.3626427e+08 0.050633871 0.047528057 106.08021 15.389367 6736.0652 2.2798253e+08 0.051950291 0.050601409 106.12262 15.262146 6738.4666 2.1997878e+08 0.053000726 0.059889896 106.16503 15.134916 6740.8680 2.1456168e+08 0.051903979 0.065533205 106.20744 15.009630 6743.2694 2.0962780e+08 0.047637343 0.072864967 106.24984 14.887131 6745.6708 2.0254554e+08 0.044896272 0.078848902 106.29399 14.758022 6748.0723 1.9135200e+08 0.040762065 0.067397039 106.34246 14.612635 6750.4737 1.8099346e+08 0.038049688 0.072812945 106.38830 14.475092 6752.8751 1.7192441e+08 0.035269018 0.073121837 106.43071 14.347881 6755.2765 1.6515067e+08 0.033197937 0.074484117 106.47311 14.220670 6757.6779 1.6082701e+08 0.031380413 0.074682753 106.51552 14.093458 6760.0793 1.5559970e+08 0.032180816 0.076212559 106.55792 13.967125 6762.4808 1.5476195e+08 0.036442930 0.077275355 106.60032 13.844626 6764.8822 1.5182976e+08 0.039369830 0.079525548 106.64311 13.720655 6767.2836 1.4346147e+08 0.038824008 0.081658227 106.69158 13.575268 6769.6850 1.3678591e+08 0.033596473 0.086115683 106.73879 13.433646 6772.0864 1.3087974e+08 0.029228675 0.091940172 106.78119 13.306434 6774.4878 1.2781943e+08 0.024830844 0.097764661 106.82365 13.178139 6776.8892 1.2454316e+08 0.020447802 0.10358915 106.86673 13.038137 6779.2907 1.1798599e+08 0.016116104 0.10941364 106.90965 12.901046 6781.6921 1.1644745e+08 0.011720449 0.11523813 106.95205 12.773833 6784.0935 1.1652901e+08 0.0073133497 0.12106262 106.99509 12.645276 6786.4949 1.1409848e+08 0.0029488906 0.12688711 107.04356 12.505273 6788.8963 1.0732948e+08 -0.0013562633 0.13271160 107.08935 12.368444 6791.2977 1.0242336e+08 -0.0056799032 0.13853609 107.12705 12.241233 6793.6992 96917931. -0.0099754555 0.14436058 107.16609 12.112415 6796.1006 91878393. -0.014240540 0.15018506 107.21455 11.972412 6798.5020 87026349. -0.018468506 0.15600955 107.26138 11.835844 6800.9034 79790098. -0.022622928 0.16183404 107.30379 11.708633 6803.3048 79342153. -0.026842323 0.16765853 107.34629 11.579553 6805.7062 77768013. -0.031044798 0.17348302 107.38937 11.439550 6808.1077 74521818. -0.035219866 0.17930751 107.43225 11.304604 6810.5091 74886667. -0.039455174 0.18513200 107.47466 11.182104 6812.9105 77514993. -0.043738889 0.19095649 107.51717 11.055793 6815.3119 79605028. -0.048019250 0.19678098 107.56025 10.910406 6817.7133 78337549. -0.052266872 0.20260547 107.60499 10.766685 6820.1147 72581112. -0.056469932 0.20842996 107.65346 10.626682 6822.5161 64778715. -0.060643119 0.21425445 107.69948 10.486679 6824.9176 61444268. -0.064894468 0.22007894 107.74256 10.346676 6827.3190 60492642. -0.069220668 0.22590342 107.78524 10.217079 6829.7204 60590146. -0.073616614 0.23172791 107.82765 10.094560 6832.1218 60915555. -0.078098798 0.23755240 107.87037 9.9612354 6834.5232 57557139. -0.082674549 0.24337689 107.91344 9.8158731 6836.9246 51981368. -0.088252985 0.24920138 107.95652 9.6738103 6839.3261 46814608. -0.099892744 0.25502587 107.99960 9.5338075 6841.7275 44229727. -0.099005557 0.26085036 108.04676 9.3938046 6844.1289 45793437. -0.090520096 0.26667485 108.09522 9.2538018