# # 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 = 60.409071 km # Date (UTC) = 2011-12-13T09:43:16.110 # Date (julian) = 2455908.90504757 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6499.9826 1.9057504e+11 0.049340930 0.032277969 107.08599 33.224151 6502.8449 1.5151314e+11 0.060600734 0.033141080 107.17023 33.066909 6505.7072 1.1890442e+11 0.071783947 0.034004191 107.24730 32.926860 6508.5694 9.4533984e+10 0.082961214 0.034867303 107.32217 32.792084 6511.4317 7.7206532e+10 0.094352818 0.035730414 107.39705 32.657310 6514.2940 6.4355106e+10 0.10612384 0.036593525 107.47192 32.522536 6517.1563 5.4480073e+10 0.11841071 0.037456636 107.54681 32.387748 6520.0185 4.6765451e+10 0.13134485 0.038319748 107.62169 32.252954 6522.8808 4.0672037e+10 0.14263247 0.039147903 107.69657 32.118174 6525.7431 3.5695439e+10 0.14807607 0.039697407 107.77145 31.983399 6528.6054 3.1153465e+10 0.15315633 0.041922721 107.84914 31.835949 6531.4676 2.7137037e+10 0.15717741 0.045909336 107.92776 31.684324 6534.3299 2.3708399e+10 0.16012840 0.048036847 107.99789 31.549068 6537.1922 2.1033675e+10 0.16216394 0.048775836 108.06777 31.414293 6540.0545 1.9054356e+10 0.16461895 0.050879832 108.14250 31.279499 6542.9167 1.7336070e+10 0.16508179 0.051350283 108.21739 31.144706 6545.7790 1.5839960e+10 0.16547988 0.052462546 108.28744 31.009931 6548.6413 1.4479849e+10 0.16553676 0.053859157 108.35733 30.875156 6551.5036 1.3287652e+10 0.16443166 0.055412510 108.42721 30.745181 6554.3658 1.2208284e+10 0.16187494 0.054840057 108.49709 30.615398 6557.2281 1.1133656e+10 0.15896672 0.053723126 108.57535 30.464681 6560.0904 1.0134898e+10 0.15570663 0.052192814 108.65153 30.316050 6562.9527 9.2000703e+09 0.15225794 0.049973411 108.71642 30.181275 6565.8149 8.4127569e+09 0.14922968 0.047393026 108.78218 30.046496 6568.6772 7.7656211e+09 0.14727895 0.045149144 108.85208 29.911703 6571.5395 7.1738973e+09 0.14580126 0.044355931 108.92197 29.776912 6574.4018 6.6494654e+09 0.14356005 0.042662041 108.99186 29.642138 6577.2640 6.1888969e+09 0.14119557 0.039805638 109.06090 29.508201 6580.1263 5.7843736e+09 0.13840764 0.036404025 109.12579 29.378418 6582.9886 5.3974711e+09 0.13597819 0.035024773 109.19202 29.245038 6585.8509 5.0063746e+09 0.13341143 0.033290531 109.26502 29.093413 6588.7131 4.6161168e+09 0.13143404 0.033141778 109.33683 28.948250 6591.5754 4.2509950e+09 0.12856489 0.028552630 109.40672 28.813457 6594.4377 3.9432406e+09 0.12558802 0.025932257 109.47471 28.678670 6597.3000 3.6744510e+09 0.12220965 0.025628072 109.53961 28.543895 6600.1622 3.4385277e+09 0.12055749 0.025323393 109.60450 28.411004 6603.0245 3.2314950e+09 0.11888623 0.026648766 109.66939 28.281221 6605.8868 3.0276204e+09 0.11721480 0.027408981 109.73732 28.143265 6608.7491 2.8310964e+09 0.11317746 0.023712566 109.81032 27.991641 6611.6113 2.6353474e+09 0.10880844 0.024568608 109.87555 27.852978 6614.4736 2.4591688e+09 0.10665538 0.023614198 109.93545 27.723194 6617.3359 2.3072992e+09 0.10457336 0.023550609 109.99830 27.590454 6620.1982 2.1739736e+09 0.10372375 0.024831052 110.06320 27.455660 6623.0604 2.0569768e+09 0.10225389 0.024514214 110.12809 27.320877 6625.9227 1.9505791e+09 0.10082639 0.026498665 110.19299 27.186102 6628.7850 1.8446796e+09 0.099063024 0.026021804 110.25934 27.044769 6631.6473 1.7354641e+09 0.097342245 0.025996513 110.32672 26.898761 6634.5095 1.6305592e+09 0.095884050 0.026364010 110.39211 26.761773 6637.3718 1.5376347e+09 0.094373358 0.025979315 110.45700 26.626998 6640.2341 1.4643681e+09 0.094183913 0.025242013 110.51791 26.496200 6643.0964 1.3943351e+09 0.093915600 0.025207166 110.57781 26.366399 6645.9586 1.3201352e+09 0.092464663 0.025900764 110.64368 26.223686 6648.8209 1.2480922e+09 0.090926914 0.027513797 110.71103 26.077856 6651.6832 1.1780674e+09 0.090311862 0.027007719 110.77592 25.943080 6654.5454 1.1143920e+09 0.089163919 0.027803859 110.84084 25.808164 6657.4077 1.0514584e+09 0.086722449 0.029374057 110.90823 25.662155 6660.2700 9.9017509e+08 0.084715369 0.031871412 110.97389 25.518750 6663.1323 9.3532136e+08 0.082742258 0.032446557 111.03379 25.383975 6665.9945 8.8577220e+08 0.081874616 0.026917530 111.09369 25.250337 6668.8568 8.4755640e+08 0.080129752 0.028229000 111.15360 25.120536 6671.7191 8.0340625e+08 0.079721906 0.026875596 111.21392 24.987081 6674.5814 7.6462923e+08 0.078021424 0.029445215 111.27570 24.841072 6677.4436 7.2691828e+08 0.075181553 0.031727530 111.33664 24.702279 6680.3059 6.9085872e+08 0.075197934 0.029507477 111.39654 24.572496 6683.1682 6.5776100e+08 0.076007353 0.031435072 111.45975 24.433071 6686.0305 6.2098979e+08 0.075582746 0.033778811 111.52714 24.281446 6688.8927 5.8904083e+08 0.072131780 0.033991266 111.58628 24.144251 6691.7550 5.5971526e+08 0.070958952 0.032823128 111.64119 24.014467 6694.6173 5.3536762e+08 0.070103336 0.030395858 111.70430 23.874017 6697.4796 5.0977199e+08 0.069557516 0.030151955 111.77169 23.728008 6700.3418 4.8387511e+08 0.067634272 0.030921272 111.82814 23.596209 6703.2041 4.6191313e+08 0.066773742 0.034185999 111.88306 23.466409 6706.0664 4.4031952e+08 0.066817751 0.038561952 111.94887 23.322449 6708.9287 4.2048772e+08 0.066127731 0.041054863 112.01574 23.176440 6711.7909 4.0049120e+08 0.063718559 0.041592106 112.07751 23.030431 6714.6532 3.7953589e+08 0.061114704 0.047352517 112.13714 22.889486 6717.5155 3.5976484e+08 0.058539775 0.049842383 112.19205 22.759702 6720.3778 3.4078796e+08 0.057134669 0.050375996 112.24908 22.624908 6723.2400 3.2747408e+08 0.056026033 0.049502818 112.31085 22.478899 6726.1023 3.1161296e+08 0.051285981 0.040952290 112.37559 22.332890 6728.9646 2.9579010e+08 0.050396674 0.040995237 112.44298 22.186881 6731.8269 2.8022714e+08 0.047988515 0.043395633 112.50104 22.052986 6734.6891 2.6630426e+08 0.047355191 0.049312136 112.55596 21.923184 6737.5514 2.5679507e+08 0.049342355 0.055892100 112.61598 21.781319 6740.4137 2.4675389e+08 0.049014457 0.064757073 112.67775 21.635310 6743.2760 2.3634678e+08 0.044534284 0.072909063 112.73411 21.489302 6746.1382 2.2458215e+08 0.041259269 0.077380139 112.79130 21.343294 6749.0005 2.1278911e+08 0.037821200 0.072277794 112.85307 21.197285 6751.8628 2.0345364e+08 0.032989267 0.074076461 112.91484 21.051276 6754.7251 1.9548590e+08 0.031054435 0.075047485 112.97662 20.905267 6757.5873 1.8668082e+08 0.028649630 0.074957655 113.03839 20.759257 6760.4496 1.7742736e+08 0.029616784 0.076918653 113.10017 20.613248 6763.3119 1.6761386e+08 0.035271221 0.077387610 113.15722 20.471960 6766.1742 1.6053596e+08 0.037702324 0.080107694 113.21371 20.331230 6769.0364 1.5478295e+08 0.032472848 0.084542624 113.27548 20.185221 6771.8987 1.4778675e+08 0.027302726 0.091484899 113.33569 20.039206 6774.7610 1.4299263e+08 0.022112781 0.098427173 113.39185 19.893175 6777.6233 1.3849138e+08 0.016923124 0.10536945 113.45082 19.747155 6780.4855 1.3134238e+08 0.011756078 0.11231172 113.51259 19.601146 6783.3478 1.2548436e+08 0.0065822555 0.11925400 113.57033 19.459170 6786.2101 1.1884998e+08 0.0014143959 0.12619627 113.62649 19.318776 6789.0724 1.1286351e+08 -0.0037501015 0.13313854 113.68791 19.173118 6791.9346 1.0823339e+08 -0.0089123890 0.14008082 113.74880 19.027109 6794.7969 1.0268782e+08 -0.014070225 0.14702309 113.80496 18.881101 6797.6592 98805072. -0.019221578 0.15396537 113.86112 18.737205 6800.5215 95513957. -0.024364781 0.16090764 113.91728 18.596812 6803.3837 91648828. -0.029501253 0.16784992 113.97344 18.453075 6806.2460 87940203. -0.034613707 0.17479219 114.02959 18.307065 6809.1083 86571976. -0.039678621 0.18173446 114.09228 18.149289 6811.9706 84637053. -0.044718271 0.18867674 114.15441 17.992542 6814.8328 83372930. -0.049739403 0.19561901 114.21056 17.846533 6817.6951 80442875. -0.054783006 0.20256129 114.27054 17.693651 6820.5574 75198859. -0.059869120 0.20950356 114.33472 17.533199 6823.4196 71061630. -0.064961638 0.21644584 114.39154 17.386002 6826.2819 64516088. -0.070137282 0.22338811 114.44770 17.240759 6829.1442 59461516. -0.075343768 0.23033038 114.50386 17.100344 6832.0065 54869738. -0.080629678 0.23727266 114.56288 16.952794 6834.8687 53880235. -0.085908682 0.24421493 114.62705 16.792369 6837.7310 52229691. -0.091401629 0.25115721 114.69123 16.626798 6840.5933 51694765. -0.097179494 0.25809948 114.75349 16.466281 6843.4556 50662554. -0.10424340 0.26504176 114.80965 16.325867 6846.3178 47577316. -0.12189351 0.27198403 114.86655 16.176241 6849.1801 48365438. -0.11625845 0.27892630 114.92432 16.015788 6852.0424 46601970. -0.099160077 0.28586858 114.98787 15.849548