# # 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 = 44.262259 km # Date (UTC) = 2015-01-11T09:15:35.260 # Date (julian) = 2457033.88582477 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6490.4355 7.3694909e+10 0.018732044 0.029399066 -17.462020 51.356648 6492.2388 6.4154980e+10 0.023864925 0.029942847 -17.571910 51.254655 6494.0421 5.8495446e+10 0.028447189 0.030486628 -17.685130 51.149523 6495.8454 5.4990401e+10 0.032703044 0.031030409 -17.792357 51.050042 6497.6487 5.3420074e+10 0.036953823 0.031574190 -17.887885 50.961590 6499.4520 5.0341930e+10 0.041237961 0.032117971 -17.983412 50.873139 6501.2553 4.6491198e+10 0.045504248 0.032661752 -18.078939 50.784688 6503.0586 4.2999200e+10 0.050048973 0.033205533 -18.174466 50.696237 6504.8619 4.0225334e+10 0.055252355 0.033749313 -18.269993 50.607785 6506.6652 3.8642244e+10 0.061664320 0.034293094 -18.363094 50.519334 6508.4685 3.6722963e+10 0.068897933 0.034836875 -18.455083 50.430883 6510.2718 3.3953552e+10 0.076483615 0.035380656 -18.547072 50.342432 6512.0751 3.1201186e+10 0.084910270 0.035924437 -18.639073 50.253970 6513.8784 2.8810690e+10 0.094542511 0.036468218 -18.731076 50.165506 6515.6817 2.7116328e+10 0.10578570 0.037011999 -18.823078 50.077042 6517.4851 2.6241451e+10 0.11873521 0.037555780 -18.915068 49.988590 6519.2884 2.4741856e+10 0.13193832 0.038099561 -19.007057 49.900139 6521.0917 2.2652429e+10 0.14536216 0.038643342 -19.098314 49.810955 6522.8950 2.0951693e+10 0.15638657 0.039151606 -19.186765 49.718965 6524.6983 1.9760383e+10 0.16426116 0.039675020 -19.275216 49.626975 6526.5016 1.8944209e+10 0.16864061 0.040193915 -19.363667 49.536332 6528.3049 1.8217030e+10 0.17174776 0.041684332 -19.452118 49.447881 6530.1082 1.7289332e+10 0.17434251 0.043980126 -19.540570 49.359430 6531.9115 1.6509452e+10 0.17575632 0.046555331 -19.629021 49.270979 6533.7148 1.5691300e+10 0.17584361 0.047823343 -19.717472 49.182528 6535.5181 1.4797776e+10 0.17531840 0.047999559 -19.805923 49.094077 6537.3214 1.3827594e+10 0.17530248 0.048836740 -19.891799 49.003051 6539.1247 1.3035872e+10 0.17428904 0.049794545 -19.976712 48.911062 6540.9280 1.2415863e+10 0.17323892 0.051292503 -20.061626 48.819073 6542.7313 1.1832256e+10 0.17213301 0.051279873 -20.146539 48.730273 6544.5346 1.1236690e+10 0.17091016 0.052078011 -20.231451 48.641822 6546.3379 1.0578592e+10 0.16924888 0.052742550 -20.316364 48.553371 6548.1412 9.9508961e+09 0.16842879 0.053709809 -20.401277 48.464920 6549.9445 9.3895957e+09 0.16770099 0.054928789 -20.486190 48.376469 6551.7478 8.8535242e+09 0.16632313 0.055498237 -20.570227 48.287135 6553.5511 8.3569456e+09 0.16477639 0.055058040 -20.651615 48.195131 6555.3544 7.9070127e+09 0.16342478 0.054555588 -20.733003 48.103127 6557.1577 7.4700244e+09 0.16180273 0.053767262 -20.815880 48.012625 6558.9610 7.1049755e+09 0.15929196 0.052420415 -20.900793 47.924174 6560.7643 6.7286837e+09 0.15693151 0.051585194 -20.985706 47.835723 6562.5676 6.3992959e+09 0.15469131 0.050339808 -21.068510 47.747271 6564.3709 6.1039245e+09 0.15207591 0.048603503 -21.149885 47.658820 6566.1742 5.8038767e+09 0.15000106 0.047084336 -21.231260 47.570369 6567.9775 5.5423495e+09 0.14883248 0.045790679 -21.309912 47.479195 6569.7808 5.2592589e+09 0.14770105 0.044903243 -21.387748 47.387206 6571.5841 5.0116097e+09 0.14635556 0.044343742 -21.465585 47.295218 6573.3874 4.7831902e+09 0.14478270 0.043346590 -21.546760 47.206566 6575.1907 4.5532787e+09 0.14332654 0.042183358 -21.628136 47.118115 6576.9940 4.3429361e+09 0.14150919 0.040227256 -21.709098 47.029250 6578.7973 4.1393578e+09 0.13919682 0.037390551 -21.786934 46.937260 6580.6006 3.9547215e+09 0.13743802 0.035965690 -21.864771 46.845270 6582.4039 3.7782111e+09 0.13585111 0.035183875 -21.941580 46.754308 6584.2072 3.6194983e+09 0.13390519 0.034402626 -22.015879 46.665857 6586.0105 3.4677055e+09 0.13201764 0.033171160 -22.090177 46.577406 6587.8138 3.3340374e+09 0.13062274 0.033338683 -22.166118 46.487313 6589.6171 3.1850812e+09 0.12868031 0.031821640 -22.243955 46.395325 6591.4204 3.0309716e+09 0.12631296 0.028727497 -22.321793 46.303336 6593.2237 2.8954142e+09 0.12422701 0.026894212 -22.397374 46.213603 6595.0270 2.7661618e+09 0.12189948 0.025626375 -22.471673 46.125152 6596.8303 2.6605695e+09 0.11911486 0.025723499 -22.545971 46.036701 6598.6336 2.5513327e+09 0.11699012 0.025104641 -22.620280 45.945368 6600.4369 2.4503964e+09 0.11617332 0.025888156 -22.694590 45.853364 6602.2402 2.3517975e+09 0.11504634 0.027311615 -22.768901 45.761360 6604.0436 2.2550134e+09 0.11339090 0.026097135 -22.843199 45.672856 6605.8469 2.1574391e+09 0.11314444 0.027375485 -22.917498 45.584405 6607.6502 2.0714255e+09 0.11158919 0.024423185 -22.991797 45.495393 6609.4535 1.9935556e+09 0.10910122 0.023840629 -23.066096 45.403404 6611.2568 1.9186643e+09 0.10675906 0.024794720 -23.140396 45.311415 6613.0601 1.8491011e+09 0.10602236 0.023595627 -23.213519 45.220602 6614.8634 1.7691233e+09 0.10508988 0.023345669 -23.284279 45.132151 6616.6667 1.7085462e+09 0.10376302 0.023386932 -23.355040 45.043700 6618.4700 1.6438250e+09 0.10321455 0.024125677 -23.425800 44.953459 6620.2733 1.5774588e+09 0.10262453 0.024855258 -23.496561 44.861471 6622.0766 1.5106360e+09 0.10152396 0.024737612 -23.567323 44.769482 6623.8799 1.4431887e+09 0.099847147 0.024817805 -23.638084 44.679897 6625.6832 1.3854800e+09 0.098889116 0.026212837 -23.708845 44.591446 6627.4865 1.3308305e+09 0.097060110 0.025504729 -23.779606 44.502995 6629.2898 1.2805374e+09 0.095885977 0.026056712 -23.850367 44.411525 6631.0931 1.2262920e+09 0.094240905 0.025940221 -23.921127 44.319535 6632.8964 1.1806832e+09 0.092962312 0.026139829 -23.991793 44.227545 6634.6997 1.1366805e+09 0.091446964 0.026377881 -24.059016 44.135557 6636.5030 1.0923422e+09 0.089861948 0.026354422 -24.126239 44.043568 6638.3063 1.0553948e+09 0.088696771 0.025658298 -24.194171 43.952288 6640.1096 1.0127962e+09 0.088471194 0.025257243 -24.264932 43.863836 6641.9129 9.7226665e+08 0.088263918 0.025151400 -24.335693 43.775385 6643.7162 9.3844918e+08 0.087230963 0.025300755 -24.405135 43.685605 6645.5195 9.0128815e+08 0.086409484 0.025695050 -24.472368 43.593602 6647.3228 8.7042061e+08 0.085510031 0.026607736 -24.539601 43.501598 6649.1261 8.3977247e+08 0.084523903 0.027459862 -24.604890 43.411541 6650.9294 8.0985610e+08 0.084275474 0.026468004 -24.668575 43.323090 6652.7327 7.7613527e+08 0.084015243 0.027452118 -24.732260 43.234639 6654.5360 7.4303949e+08 0.083171700 0.027807881 -24.798497 43.143636 6656.3393 7.0990734e+08 0.081613548 0.028321228 -24.865720 43.051647 6658.1426 6.8264669e+08 0.080432120 0.030314005 -24.932943 42.959659 6659.9459 6.6057777e+08 0.079189809 0.031637280 -24.996999 42.870836 6661.7492 6.3268318e+08 0.077879243 0.032916542 -25.060684 42.782385 6663.5525 6.1087824e+08 0.076730808 0.032330096 -25.124612 42.693691 6665.3558 5.8718031e+08 0.076501935 0.027964106 -25.191834 42.601701 6667.1591 5.6514411e+08 0.076005321 0.027161906 -25.259057 42.509711 6668.9624 5.4564969e+08 0.074769446 0.028322451 -25.325423 42.418577 6670.7657 5.2423114e+08 0.074822279 0.026973883 -25.389108 42.330126 6672.5690 5.0084777e+08 0.074466859 0.027209419 -25.452793 42.241675 6674.3723 4.8339869e+08 0.073357331 0.029268877 -25.515006 42.151753 6676.1756 4.6580126e+08 0.071259970 0.031826918 -25.575153 42.059765 6677.9789 4.5014986e+08 0.070346270 0.030966560 -25.635300 41.967776 6679.7822 4.3214322e+08 0.070225101 0.029621366 -25.697532 41.877873 6681.5855 4.1291306e+08 0.070807908 0.030106575 -25.761217 41.789422 6683.3888 3.9930891e+08 0.071083530 0.031758432 -25.824901 41.700971 6685.1921 3.8607424e+08 0.070857259 0.032907788 -25.885887 41.609819 6686.9954 3.7316846e+08 0.069388877 0.034340250 -25.946034 41.517829 6688.7987 3.5605817e+08 0.067117300 0.033969568 -26.006182 41.425839 6690.6020 3.4175535e+08 0.066284728 0.033046868 -26.069651 41.337150 6692.4054 3.3177235e+08 0.065506405 0.032294619 -26.133345 41.248686 6694.2087 3.2426326e+08 0.064705233 0.030968588 -26.197597 41.158380 6696.0120 3.0984820e+08 0.064676437 0.029680753 -26.266338 41.053248 6697.8153 2.9660496e+08 0.064048925 0.030194438 -26.335078 40.948116 6699.6186 2.7799603e+08 0.062849118 0.031019679 -26.398341 40.853617 6701.4219 2.6439496e+08 0.061355092 0.032028437 -26.458488 40.765166 6703.2252 2.5555124e+08 0.061362292 0.034238666 -26.518634 40.676715 6705.0285 2.4314686e+08 0.061542142 0.036719213 -26.575912 40.585395 6706.8318 2.3571686e+08 0.061189783 0.039894031 -26.632520 40.493407 6708.6351 2.2462199e+08 0.060804284 0.040735147 -26.689129 40.401418 6710.4384 2.1714304e+08 0.059580077 0.040582301 -26.749221 40.309428 6712.2417 2.0663780e+08 0.057823939 0.042278667 -26.809368 40.217437 6714.0450 1.9907010e+08 0.055972601 0.047306790 -26.868956 40.126007 6715.8483 1.9140739e+08 0.054592908 0.048246183 -26.925564 40.037556 6717.6516 1.8580718e+08 0.052819880 0.049833965 -26.982173 39.949105 6719.4549 1.8141563e+08 0.051248796 0.050937667 -27.042807 39.856461 6721.2582 1.7050463e+08 0.051637976 0.050381691 -27.111547 39.755372 6723.0615 1.6251714e+08 0.050713183 0.049403236 -27.180288 39.654283 6724.8648 1.5589187e+08 0.047144575 0.042705122 -27.238611 39.561008 6726.6681 1.4835049e+08 0.045539333 0.040957393 -27.295219 39.469020 6728.4714 1.4437290e+08 0.045329411 0.040296218 -27.351828 39.377146 6730.2747 1.3900618e+08 0.044126885 0.040755542 -27.408436 39.288695 6732.0780 1.2842514e+08 0.042908210 0.043754568 -27.465045 39.200244 6733.8813 1.2548984e+08 0.042143299 0.048709136 -27.520925 39.111064 6735.6846 1.1716659e+08 0.043578354 0.050020187 -27.573996 39.019074 6737.4879 1.1366488e+08 0.044882024 0.055689792 -27.627067 38.927083 6739.2912 1.1429089e+08 0.045253473 0.063182931 -27.684549 38.831640 6741.0945 1.0865853e+08 0.044259664 0.066028230 -27.749246 38.730551 6742.8978 1.0823964e+08 0.041311231 0.070798433 -27.813943 38.629462 6744.7011 1.0335464e+08 0.038219041 0.078335704 -27.868102 38.536622 6746.5044 96590052. 0.035665668 0.073122909 -27.921173 38.444633 6748.3077 89966787. 0.033868799 0.068635801 -27.974527 38.352927 6750.1110 83397415. 0.031321949 0.072193699 -28.031144 38.264462 6751.9143 81250655. 0.028875086 0.074098250 -28.087761 38.175998 6753.7176 82084084. 0.027832477 0.075299644 -28.145401 38.083305 6755.5209 77090804. 0.025969639 0.074376954 -28.206045 37.978188 6757.3242 72270940. 0.023672117 0.075756118 -28.266689 37.873072 6759.1275 63594443. 0.021155635 0.075850729 -28.321428 37.780953 6760.9308 56328688. 0.023831655 0.077836321 -28.374506 37.692488 6762.7341 55318705. 0.034970254 0.076866630 -28.427585 37.604024