# # 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 = 49.794817 km # Date (UTC) = 2013-12-12T09:57:11.093 # Date (julian) = 2456638.91471173 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6508.9399 3.8592710e+10 0.080585210 0.034979004 -30.555365 50.229676 6510.9853 3.5284005e+10 0.089448411 0.035595800 -30.651678 50.144064 6513.0307 3.2602542e+10 0.098640885 0.036212597 -30.747991 50.058452 6515.0762 3.0364945e+10 0.10819503 0.036829393 -30.844304 49.972840 6517.1216 2.8319197e+10 0.11804593 0.037446189 -30.940617 49.887229 6519.1671 2.6448950e+10 0.12820185 0.038062986 -31.036930 49.801618 6521.2125 2.4774712e+10 0.13865966 0.038679782 -31.130170 49.715996 6523.2579 2.3264284e+10 0.14587003 0.039243042 -31.222928 49.630373 6525.3034 2.1921241e+10 0.15126628 0.039747591 -31.315686 49.544750 6527.3488 2.0658653e+10 0.15573293 0.040969712 -31.408432 49.459139 6529.3943 1.9475439e+10 0.15902579 0.042863790 -31.501178 49.373528 6531.4397 1.8320547e+10 0.16199556 0.045868650 -31.593924 49.287917 6533.4851 1.7261929e+10 0.16468303 0.047725751 -31.686670 49.202305 6535.5306 1.6318255e+10 0.16571846 0.047994140 -31.779416 49.116693 6537.5760 1.5350954e+10 0.16726621 0.048956785 -31.875609 49.026215 6539.6214 1.4335164e+10 0.16812552 0.050395865 -31.975938 48.929901 6541.6669 1.3258833e+10 0.16762721 0.051110266 -32.076267 48.833587 6543.7123 1.2255438e+10 0.16703954 0.051568844 -32.165872 48.744132 6545.7578 1.1417317e+10 0.16626845 0.052462356 -32.255062 48.654941 6547.8032 1.0716266e+10 0.16577413 0.053592803 -32.344251 48.566322 6549.8486 1.0101496e+10 0.16477251 0.054831100 -32.433430 48.480710 6551.8941 9.5375045e+09 0.16334798 0.055549582 -32.522609 48.395098 6553.9395 9.0171147e+09 0.16133880 0.054862790 -32.610516 48.309485 6555.9849 8.5350251e+09 0.15963441 0.054025777 -32.696127 48.223873 6558.0304 8.0699567e+09 0.15843625 0.053213417 -32.781738 48.138261 6560.0758 7.6257882e+09 0.15661980 0.052205949 -32.867349 48.052650 6562.1213 7.2174638e+09 0.15444671 0.050764524 -32.952962 47.967039 6564.1667 6.8391628e+09 0.15208822 0.048696052 -33.038574 47.881428 6566.2121 6.4477810e+09 0.15049512 0.047062882 -33.132209 47.784783 6568.2576 6.0360200e+09 0.14952102 0.045534894 -33.228523 47.684456 6570.3030 5.6327840e+09 0.14866028 0.044791993 -33.322080 47.587920 6572.3484 5.2726339e+09 0.14747833 0.044030610 -33.407703 47.502296 6574.3939 4.9774309e+09 0.14565703 0.042665824 -33.493327 47.416673 6576.4393 4.7106767e+09 0.14382163 0.040865726 -33.577322 47.331055 6578.4848 4.4580379e+09 0.14161528 0.037884124 -33.659367 47.245444 6580.5302 4.2306170e+09 0.13944939 0.036030775 -33.741411 47.159833 6582.5756 4.0217965e+09 0.13745320 0.035137148 -33.823456 47.071898 6584.6211 3.8199047e+09 0.13525802 0.034177189 -33.905500 46.982719 6586.6665 3.6378677e+09 0.13292228 0.033162680 -33.987544 46.893540 6588.7119 3.4624335e+09 0.13058129 0.033142173 -34.069588 46.807386 6590.7574 3.3068719e+09 0.12772172 0.029653210 -34.151633 46.721774 6592.8028 3.1633904e+09 0.12529126 0.027293739 -34.233958 46.635681 6594.8483 2.9966817e+09 0.12310039 0.025706868 -34.322260 46.539353 6596.8937 2.8314884e+09 0.12095260 0.025723210 -34.410562 46.443025 6598.9391 2.6691947e+09 0.11949951 0.024958788 -34.495401 46.350653 6600.9846 2.5277228e+09 0.11982569 0.027013979 -34.577446 46.261474 6603.0300 2.4165768e+09 0.11904356 0.026645506 -34.659490 46.172295 6605.0755 2.3136495e+09 0.11842947 0.026728341 -34.738859 46.085792 6607.1209 2.2192319e+09 0.11716625 0.025468285 -34.817337 46.000179 6609.1663 2.1227901e+09 0.11427319 0.023755338 -34.895815 45.914567 6611.2118 2.0295398e+09 0.11155556 0.024823413 -34.970915 45.825579 6613.2572 1.9457360e+09 0.11053237 0.023667959 -35.045825 45.736400 6615.3026 1.8619660e+09 0.10914648 0.023260843 -35.122652 45.646198 6617.3481 1.7705456e+09 0.10794638 0.023554653 -35.210941 45.549883 6619.3935 1.6735933e+09 0.10720737 0.024620863 -35.299230 45.453568 6621.4390 1.5773420e+09 0.10620428 0.024943953 -35.378809 45.364218 6623.4844 1.4971056e+09 0.10439676 0.024671285 -35.453729 45.278596 6625.5298 1.4282227e+09 0.10292131 0.026029850 -35.528649 45.192974 6627.5753 1.3686839e+09 0.10069351 0.025539027 -35.603560 45.104334 6629.6207 1.3246587e+09 0.098962412 0.025996879 -35.678470 45.015155 6631.6661 1.2745397e+09 0.096740710 0.025998432 -35.753803 44.925655 6633.7116 1.2212807e+09 0.094829882 0.026276488 -35.838077 44.829339 6635.7570 1.1571109e+09 0.092977433 0.026513314 -35.922352 44.733024 6637.8025 1.0905815e+09 0.091683261 0.025768393 -35.999472 44.640657 6639.8479 1.0336452e+09 0.091313502 0.025325018 -36.070816 44.551478 6641.8933 9.8909796e+08 0.091515119 0.025151334 -36.142160 44.462299 6643.9388 9.5242439e+08 0.090599221 0.025334361 -36.216185 44.375787 6645.9842 9.2088534e+08 0.089653998 0.025912749 -36.291105 44.290165 6648.0296 8.9005311e+08 0.088706595 0.026984130 -36.366025 44.204543 6650.0751 8.5311549e+08 0.087990621 0.026272426 -36.446004 44.104995 6652.1205 8.1524741e+08 0.087446225 0.027283681 -36.526266 44.004668 6654.1660 7.7529236e+08 0.086738763 0.027965525 -36.602469 43.911037 6656.2114 7.4096536e+08 0.084972781 0.028208960 -36.673812 43.825425 6658.2568 7.1026540e+08 0.083519620 0.030516582 -36.745156 43.739813 6660.3023 6.8138617e+08 0.082083538 0.031900749 -36.814174 43.654201 6662.3477 6.5768374e+08 0.080574886 0.032849185 -36.881949 43.568590 6664.3931 6.3392269e+08 0.079354164 0.030767573 -36.949725 43.482979 6666.4386 6.1468572e+08 0.079032911 0.026994059 -37.028095 43.384882 6668.4840 5.9286982e+08 0.077867589 0.027899102 -37.108357 43.284555 6670.5295 5.6335747e+08 0.077519831 0.027083341 -37.184170 43.189470 6672.5749 5.3849883e+08 0.077028039 0.027212822 -37.251954 43.103846 6674.6203 5.1682801e+08 0.075622248 0.029478087 -37.319739 43.018223 6676.6658 4.9744978e+08 0.073233635 0.032142813 -37.392210 42.924459 6678.7112 4.7730054e+08 0.072268914 0.030460924 -37.468460 42.824132 6680.7567 4.5180196e+08 0.072920773 0.029604809 -37.544186 42.724713 6682.8021 4.3085697e+08 0.073429928 0.031037370 -37.611962 42.639102 6684.8475 4.1499941e+08 0.073297634 0.032697100 -37.679737 42.553491 6686.8930 4.0208425e+08 0.071855111 0.034280626 -37.749702 42.464078 6688.9384 3.8854045e+08 0.069241287 0.034001806 -37.825951 42.363749 6690.9838 3.7193327e+08 0.068488436 0.033003115 -37.902200 42.263421 6693.0293 3.5589507e+08 0.067848784 0.031594044 -37.975372 42.166169 6695.0747 3.3731899e+08 0.067469593 0.029845749 -38.047608 42.069854 6697.1202 3.2117727e+08 0.067068744 0.030106471 -38.117639 41.975499 6699.1656 3.0613430e+08 0.065934597 0.031437637 -38.181848 41.886321 6701.2110 2.9503249e+08 0.064298340 0.031719088 -38.246057 41.797142 6703.2565 2.8828311e+08 0.064177376 0.034317000 -38.314049 41.704599 6705.3019 2.7351557e+08 0.064418366 0.037205334 -38.386285 41.608284 6707.3473 2.6156793e+08 0.064149786 0.040137070 -38.458521 41.511969 6709.3928 2.5018020e+08 0.063471187 0.040882715 -38.522903 41.426127 6711.4382 2.4478928e+08 0.061628374 0.041190807 -38.587121 41.340505 6713.4837 2.4186885e+08 0.059575221 0.045435910 -38.652754 41.252286 6715.5291 2.3192724e+08 0.057844770 0.047919732 -38.724990 41.151958 6717.5745 2.2088130e+08 0.055913782 0.049838731 -38.797226 41.051630 6719.6200 2.0837362e+08 0.054398944 0.050780821 -38.869462 40.954050 6721.6654 2.0021288e+08 0.054591834 0.050504390 -38.941698 40.857735 6723.7108 1.9035669e+08 0.052912782 0.049765395 -39.013160 40.760646 6725.7563 1.8422254e+08 0.048921031 0.041103605 -39.081382 40.660318 6727.8017 1.7768359e+08 0.047971497 0.039892262 -39.149604 40.559990 6729.8472 1.7022463e+08 0.046854297 0.040480774 -39.212512 40.469980 6731.8926 1.6436112e+08 0.045179891 0.043526460 -39.273155 40.384369 6733.9380 1.5770554e+08 0.044140761 0.049017180 -39.333798 40.298757 6735.9835 1.5270857e+08 0.045641538 0.050337462 -39.401244 40.199935 6738.0289 1.4847400e+08 0.046711733 0.057480264 -39.469466 40.099607 6740.0743 1.4220837e+08 0.046341386 0.064177375 -39.537693 40.000902 6742.1198 1.3432995e+08 0.043956848 0.068902635 -39.605927 39.904573 6744.1652 1.2683952e+08 0.039345610 0.077921210 -39.674161 39.808243 6746.2107 1.2110978e+08 0.037370169 0.076538082 -39.742384 39.711928 6748.2561 1.1849850e+08 0.033894972 0.068364257 -39.810606 39.615614 6750.3015 1.1547901e+08 0.030885440 0.072519022 -39.877133 39.517604 6752.3470 1.1248269e+08 0.027846385 0.073732959 -39.941342 39.417277 6754.3924 1.0400160e+08 0.026209422 0.075582419 -40.005552 39.316949 6756.4379 97558558. 0.023304783 0.075293568 -40.073498 39.220355 6758.4833 93517329. 0.023033521 0.074727304 -40.141722 39.124039 6760.5287 88836224. 0.023040758 0.077069532 -40.208184 39.025963 6762.5742 89057269. 0.027249547 0.077124668 -40.272394 38.925635 6764.6196 86889497. 0.029467212 0.079512969 -40.336603 38.825307 6766.6650 84939032. 0.029631183 0.081218084 -40.400813 38.728781 6768.7105 80457263. 0.025038868 0.083412499 -40.465023 38.632468 6770.7559 74902953. 0.020470050 0.088713133 -40.529232 38.536153 6772.8014 71866954. 0.016214767 0.093674219 -40.593442 38.439838 6774.8468 69924603. 0.011985655 0.098635305 -40.657652 38.343523 6776.8922 68282432. 0.0076680206 0.10359639 -40.721862 38.243341 6778.9377 63289040. 0.0026531142 0.10855748 -40.786072 38.143013 6780.9831 58754339. -0.0029897329 0.11351856 -40.850281 38.044577 6783.0285 58345362. -0.0089933594 0.11847965 -40.914491 37.948262 6785.0740 57771353. -0.018160516 0.12344074 -40.978701 37.851947 6787.1194 57486153. -0.055083838 0.12840182 -41.038988 37.751685 6789.1649 55114019. -0.030317822 0.13336291 -41.099194 37.651343 6791.2103 50555082. 0.031126149 0.13832399 -41.163595 37.546248