# # 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 = 53.271289 km # Date (UTC) = 2016-01-13T09:58:26.234 # Date (julian) = 2457400.91558141 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6506.1736 5.9761790e+10 0.074630624 0.034144854 106.16340 36.469049 6508.6156 5.4504137e+10 0.086083380 0.034881207 106.24006 36.334900 6511.0575 4.9674970e+10 0.097799418 0.035617560 106.31317 36.204296 6513.4994 4.5462235e+10 0.10986076 0.036353912 106.38504 36.074940 6515.9413 4.1297994e+10 0.12212240 0.037090265 106.46717 35.929948 6518.3832 3.7262563e+10 0.13459389 0.037826618 106.55478 35.776634 6520.8251 3.3445136e+10 0.14728483 0.038562970 106.62938 35.639157 6523.2670 3.0063031e+10 0.15668116 0.039245298 106.70125 35.505010 6525.7090 2.7239480e+10 0.16225292 0.039701304 106.77312 35.374389 6528.1509 2.4660174e+10 0.16759306 0.041562166 106.84500 35.245013 6530.5928 2.2406468e+10 0.17132455 0.044658579 106.91686 35.112524 6533.0347 2.0405382e+10 0.17478670 0.047534331 106.98873 34.978375 6535.4766 1.8675582e+10 0.17555772 0.048017546 107.05788 34.844227 6537.9185 1.7133769e+10 0.17653289 0.049118268 107.12496 34.710080 6540.3604 1.5579805e+10 0.17663655 0.051024382 107.19923 34.569393 6542.8024 1.4080770e+10 0.17501017 0.051306855 107.28136 34.421553 6545.2443 1.2658144e+10 0.17338862 0.052457755 107.35680 34.282631 6547.6862 1.1463032e+10 0.17070032 0.053548305 107.42867 34.148484 6550.1281 1.0495906e+10 0.16785243 0.055017433 107.49783 34.017039 6552.5700 9.6446136e+09 0.16460292 0.055443296 107.56490 33.887682 6555.0119 8.8793791e+09 0.16164472 0.054843349 107.63198 33.756041 6557.4538 8.1864006e+09 0.15867668 0.053581642 107.69905 33.621894 6559.8957 7.5808784e+09 0.15564967 0.052286076 107.76613 33.487746 6562.3377 7.0313820e+09 0.15227070 0.050558605 107.83320 33.353597 6564.7796 6.5202779e+09 0.14927455 0.048418293 107.90027 33.220897 6567.2215 6.0664869e+09 0.14674790 0.046429912 107.96735 33.091542 6569.6634 5.6187647e+09 0.14465530 0.044895602 108.03648 32.957034 6572.1053 5.1780368e+09 0.14273555 0.044169843 108.11314 32.803718 6574.5472 4.7576011e+09 0.14020681 0.042592171 108.18608 32.659715 6576.9891 4.3732113e+09 0.13772841 0.040232865 108.25315 32.530358 6579.4311 4.0671878e+09 0.13454612 0.036833525 108.31878 32.401001 6581.8730 3.8000394e+09 0.13183869 0.035332260 108.38106 32.271644 6584.3149 3.5642099e+09 0.12905710 0.034343980 108.44437 32.141257 6586.7568 3.3401959e+09 0.12644606 0.033161513 108.51145 32.007089 6589.1987 3.1271903e+09 0.12376547 0.032651742 108.57793 31.873534 6591.6406 2.9304439e+09 0.12046101 0.028479034 108.64021 31.744178 6594.0825 2.7422618e+09 0.11714891 0.026127211 108.70249 31.614630 6596.5245 2.5794646e+09 0.11337568 0.025724889 108.76478 31.480483 6598.9664 2.4253107e+09 0.11027689 0.024945785 108.82706 31.346335 6601.4083 2.2816278e+09 0.10915508 0.027237969 108.88934 31.216751 6603.8502 2.1491989e+09 0.10675895 0.026159958 108.95162 31.087394 6606.2921 2.0266865e+09 0.10565474 0.026979044 109.01391 30.958037 6608.7340 1.9221732e+09 0.10254680 0.023712964 109.07619 30.828680 6611.1759 1.8089956e+09 0.099591902 0.024846257 109.14540 30.680678 6613.6179 1.6921720e+09 0.098836043 0.023800283 109.21658 30.527363 6616.0598 1.5756907e+09 0.097561168 0.023291680 109.27929 30.396856 6618.5017 1.4700603e+09 0.097227963 0.024149627 109.34157 30.267499 6620.9436 1.3823132e+09 0.096628289 0.025071271 109.40386 30.138142 6623.3855 1.3012086e+09 0.095148037 0.024634652 109.46614 30.008784 6625.8274 1.2283106e+09 0.093911584 0.026384972 109.52470 29.879428 6628.2693 1.1572470e+09 0.092230611 0.025812450 109.58219 29.750071 6630.7113 1.0980488e+09 0.090570562 0.025930054 109.64299 29.617408 6633.1532 1.0447665e+09 0.089052173 0.026178995 109.70527 29.483261 6635.5951 9.9704585e+08 0.087301437 0.026489029 109.76467 29.351990 6638.0370 9.5670058e+08 0.085917192 0.025670030 109.82217 29.222614 6640.4789 9.0670567e+08 0.085836274 0.025212057 109.88391 29.083710 6642.9208 8.5840474e+08 0.085484756 0.025189378 109.94961 28.935869 6645.3627 8.0488450e+08 0.084241987 0.025621614 110.01296 28.800778 6647.8047 7.5382357e+08 0.082951925 0.026861433 110.07524 28.671422 6650.2466 7.1272378e+08 0.081924191 0.026311683 110.13464 28.542066 6652.6885 6.7107496e+08 0.081224357 0.027439950 110.19213 28.412709 6655.1304 6.3542028e+08 0.079693779 0.027664095 110.24962 28.283352 6657.5723 6.0127613e+08 0.077545814 0.029564970 110.30711 28.153995 6660.0142 5.7204494e+08 0.075934548 0.031638924 110.36460 28.022588 6662.4561 5.5047414e+08 0.074385114 0.032788352 110.42210 27.888439 6664.8980 5.2407806e+08 0.073780503 0.028920162 110.48052 27.749626 6667.3400 4.9662200e+08 0.073564858 0.027228332 110.54075 27.601787 6669.7819 4.6670703e+08 0.072992288 0.027552660 110.59958 27.463456 6672.2238 4.3712083e+08 0.073051632 0.027009313 110.65707 27.334099 6674.6657 4.1818930e+08 0.071963677 0.029516358 110.71456 27.204743 6677.1076 3.9986004e+08 0.069759822 0.032205225 110.77205 27.075386 6679.5495 3.8387434e+08 0.069679564 0.029813661 110.82791 26.946029 6681.9914 3.6949140e+08 0.070765197 0.030417982 110.88061 26.816672 6684.4334 3.5591437e+08 0.071041541 0.032676083 110.93660 26.682645 6686.8753 3.4070151e+08 0.069695482 0.034270333 111.00231 26.534806 6689.3172 3.2418279e+08 0.066944768 0.033730503 111.06247 26.396890 6691.7591 3.0505142e+08 0.066075131 0.032822164 111.11517 26.272324 6694.2010 2.9241203e+08 0.065205890 0.030979290 111.16950 26.146127 6696.6429 2.8102038e+08 0.065050639 0.029942911 111.22700 26.016751 6699.0848 2.6748698e+08 0.063856841 0.031512144 111.28519 25.882719 6701.5268 2.5595658e+08 0.062079406 0.032182352 111.34542 25.734879 6703.9687 2.3841310e+08 0.062449907 0.036099165 111.40244 25.594911 6706.4106 2.3029674e+08 0.062556029 0.039161000 111.45514 25.465554 6708.8525 2.1833239e+08 0.062219308 0.040971922 111.50784 25.336197 6711.2944 2.0628713e+08 0.060585177 0.041027197 111.56054 25.206840 6713.7363 1.9940749e+08 0.058466965 0.046349769 111.61514 25.072838 6716.1782 1.9000879e+08 0.056855797 0.048663896 111.67537 24.924998 6718.6202 1.8167167e+08 0.054770662 0.050778262 111.73240 24.787052 6721.0621 1.7553504e+08 0.055195090 0.050322601 111.78510 24.662486 6723.5040 1.6574210e+08 0.054198964 0.049650025 111.84035 24.530058 6725.9459 1.6129864e+08 0.050256444 0.040985162 111.90058 24.382218 6728.3878 1.5531068e+08 0.049808315 0.040177758 111.95696 24.243833 6730.8297 1.4561342e+08 0.048517335 0.041516560 112.00966 24.114477 6733.2716 1.3911616e+08 0.047432594 0.045399126 112.06033 23.985121 6735.7136 1.3025858e+08 0.048699357 0.050050924 112.10824 23.855763 6738.1555 1.2496698e+08 0.050331319 0.058177021 112.16030 23.722022 6740.5974 1.2167789e+08 0.049675654 0.065070889 112.22053 23.579659 6743.0393 1.1975890e+08 0.045795862 0.071312539 112.27691 23.443937 6745.4812 1.1562036e+08 0.042469426 0.078769184 112.32962 23.314581 6747.9231 1.0895546e+08 0.038120191 0.067043365 112.38319 23.179716 6750.3650 1.0306622e+08 0.035164120 0.072627451 112.43794 23.037352 6752.8070 97328188. 0.032001793 0.073200681 112.49597 22.891718 6755.2489 90308930. 0.029568299 0.074496233 112.55620 22.743879 6757.6908 87588513. 0.027136063 0.074643720 112.60693 22.610287 6760.1327 84986543. 0.027264764 0.076314315 112.65484 22.480930 6762.5746 85081708. 0.031012640 0.077123954 112.70743 22.342682 6765.0165 86407339. 0.033247292 0.079534209 112.76218 22.200318 6767.4584 78610925. 0.031399608 0.081462435 112.81694 22.053260 6769.9004 74014560. 0.025308478 0.086638008 112.87164 21.906141 6772.3423 69619185. 0.019998555 0.092560723 112.92434 21.781575 6774.7842 64984603. 0.014598451 0.098483438 112.97704 21.657010 6777.2261 66458351. 0.0096130226 0.10440615 113.03168 21.515647 6779.6680 62811866. 0.0042033486 0.11032887 113.08643 21.372641 6782.1099 64090627. -0.00075937279 0.11625158 113.14119 21.224801 6784.5518 60726194. -0.0063747667 0.12217430 113.19594 21.078556 6786.9937 57395625. -0.012404289 0.12809701 113.25069 20.936192 6789.4357 58176492. -0.018406902 0.13401973 113.30227 20.799874 6791.8776 56157794. -0.027372053 0.13994244 113.35018 20.670517 6794.3195 55821403. -0.057739014 0.14586516 113.40067 20.536249 6796.7614 50480082. -0.041002242 0.15178787 113.45543 20.393885 6799.2033 43952438. 0.011635028 0.15771059 113.51019 20.251522