# # 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 = 62.498094 km # Date (UTC) = 2014-11-22T09:37:29.884 # Date (julian) = 2456983.90104032 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6504.4459 8.7006373e+10 0.065944386 0.033623868 111.29687 28.723388 6507.1644 7.3989750e+10 0.076970179 0.034443626 111.36088 28.568712 6509.8829 6.3094323e+10 0.088141659 0.035263384 111.42559 28.408898 6512.6014 5.4118482e+10 0.099538794 0.036083142 111.49264 28.232121 6515.3200 4.6985684e+10 0.11131103 0.036902901 111.55789 28.071586 6518.0385 4.1144894e+10 0.12351041 0.037722659 111.62189 27.922242 6520.7570 3.6376977e+10 0.13619415 0.038542417 111.69246 27.753226 6523.4755 3.2178422e+10 0.14506423 0.039296957 111.76450 27.578145 6526.1940 2.8520389e+10 0.14966734 0.039871449 111.82317 27.423468 6528.9125 2.5582541e+10 0.15415846 0.042166357 111.88292 27.269867 6531.6310 2.3254147e+10 0.15818476 0.046147091 111.94692 27.120526 6534.3495 2.1018500e+10 0.16032587 0.048042324 112.01192 26.962216 6537.0680 1.8902353e+10 0.16146680 0.048717286 112.07897 26.785439 6539.7865 1.6963271e+10 0.16256467 0.050595674 112.14028 26.627478 6542.5050 1.5297637e+10 0.16222658 0.051193969 112.19895 26.478113 6545.2235 1.4014619e+10 0.16269689 0.052457569 112.25763 26.324437 6547.9420 1.2883598e+10 0.16269606 0.053645599 112.31630 26.169760 6550.6605 1.1793736e+10 0.16218122 0.055150751 112.38282 26.000089 6553.3790 1.0783214e+10 0.16110807 0.055144531 112.44739 25.834152 6556.0975 9.8468713e+09 0.15869500 0.053998785 112.50606 25.679477 6558.8160 9.0596223e+09 0.15621409 0.052543932 112.56473 25.527049 6561.5346 8.3897179e+09 0.15331015 0.051109265 112.62340 25.377706 6564.2531 7.8033437e+09 0.15040971 0.048656911 112.68207 25.225448 6566.9716 7.2745630e+09 0.14858608 0.046633273 112.74074 25.070772 6569.6901 6.7194193e+09 0.14708048 0.044897337 112.80505 24.905345 6572.4086 6.1694758e+09 0.14574486 0.043996174 112.87184 24.735331 6575.1271 5.6466990e+09 0.14403660 0.042247204 112.93051 24.585988 6577.8456 5.2277073e+09 0.14184904 0.038892157 112.98834 24.435811 6580.5641 4.9074464e+09 0.13944420 0.035999448 113.04168 24.281136 6583.2826 4.6170936e+09 0.13760896 0.034878627 113.09652 24.127961 6586.0011 4.3586677e+09 0.13542569 0.033171282 113.15519 23.978618 6588.7196 4.0846444e+09 0.13390096 0.033139614 113.21479 23.820599 6591.4381 3.8073826e+09 0.13146093 0.028707545 113.27574 23.649920 6594.1566 3.5475953e+09 0.12902269 0.026086545 113.33495 23.491500 6596.8751 3.3135837e+09 0.12617668 0.025723295 113.39362 23.336824 6599.5936 3.1273599e+09 0.12450595 0.024965434 113.44754 23.186882 6602.3121 2.9576746e+09 0.12382033 0.027250264 113.50089 23.037518 6605.0306 2.7965736e+09 0.12242061 0.026690754 113.55422 22.888175 6607.7492 2.6548976e+09 0.11988261 0.024227699 113.60756 22.738832 6610.4677 2.5251789e+09 0.11544069 0.024449817 113.66089 22.589489 6613.1862 2.3955641e+09 0.11305878 0.023641895 113.71626 22.434452 6615.9047 2.2516142e+09 0.11108796 0.023279366 113.77723 22.263772 6618.6232 2.1078737e+09 0.11050490 0.024241368 113.83341 22.106457 6621.3417 1.9771474e+09 0.11005034 0.024976194 113.88675 21.957115 6624.0602 1.8687337e+09 0.10842325 0.024894529 113.94008 21.807772 6626.7787 1.7768293e+09 0.10693033 0.025598774 113.99342 21.658429 6629.4972 1.6970818e+09 0.10574929 0.026019210 114.04675 21.509087 6632.2157 1.6211270e+09 0.10396493 0.026058210 114.10010 21.359709 6634.9342 1.5384155e+09 0.10255339 0.026394989 114.16106 21.189028 6637.6527 1.4529592e+09 0.10112193 0.025841730 114.21926 21.026054 6640.3712 1.3655224e+09 0.10118778 0.025225232 114.27260 20.876711 6643.0897 1.2927921e+09 0.10097111 0.025206166 114.32594 20.727368 6645.8082 1.2284920e+09 0.099583990 0.025830313 114.37928 20.578027 6648.5267 1.1674456e+09 0.098143193 0.027316887 114.42935 20.428684 6651.2452 1.1116048e+09 0.097322805 0.026672112 114.47735 20.279342 6653.9638 1.0637734e+09 0.096321306 0.028017719 114.52929 20.129983 6656.6823 1.0176296e+09 0.093844121 0.028622232 114.58263 19.980618 6659.4008 9.6904163e+08 0.091710540 0.031750998 114.63728 19.812905 6662.1193 9.1824438e+08 0.089738650 0.032977353 114.69180 19.648143 6664.8378 8.6894989e+08 0.088431890 0.029140698 114.74514 19.504111 6667.5563 8.2981218e+08 0.087455645 0.027307790 114.79664 19.358239 6670.2748 7.9606148e+08 0.086190812 0.027201327 114.84464 19.208896 6672.9933 7.5821227e+08 0.085404942 0.027455331 114.89876 19.049489 6675.7118 7.2003413e+08 0.082840818 0.031161716 114.95971 18.878809 6678.4303 6.7934300e+08 0.081374855 0.030648807 115.00990 18.730299 6681.1488 6.4394872e+08 0.082307877 0.029771525 115.05790 18.586290 6683.8673 6.2036385e+08 0.082789258 0.032459645 115.10591 18.437180 6686.5858 5.9722750e+08 0.081614617 0.034101926 115.15434 18.287837 6689.3043 5.7520251e+08 0.078350751 0.033742079 115.20768 18.138495 6692.0228 5.4890138e+08 0.077162679 0.032738811 115.26133 17.986004 6694.7413 5.2521555e+08 0.076307318 0.030221998 115.31619 17.821419 6697.4598 5.0325230e+08 0.075586835 0.030149460 115.36717 17.665462 6700.1784 4.8167497e+08 0.073639525 0.030800008 115.41518 17.516119 6702.8969 4.6116784e+08 0.072415333 0.033592876 115.46318 17.370464 6705.6154 4.4095665e+08 0.072393175 0.037762601 115.51118 17.226456 6708.3339 4.2010986e+08 0.071773300 0.040407151 115.56478 17.060674 6711.0524 3.9804197e+08 0.069732012 0.040751823 115.61844 16.894682 6713.7709 3.8013120e+08 0.066858813 0.046474740 115.66644 16.750673 6716.4894 3.6399580e+08 0.064341731 0.049122184 115.71651 16.598638 6719.2079 3.5012654e+08 0.061403443 0.051172324 115.77137 16.427958 6721.9264 3.3214357e+08 0.061506607 0.050583028 115.82170 16.274893 6724.6449 3.1363507e+08 0.057502003 0.044541282 115.86970 16.130884 6727.3634 3.0113542e+08 0.054650448 0.040476217 115.91771 15.986858 6730.0819 2.9173702e+08 0.053050836 0.040491222 115.96573 15.842828 6732.8004 2.8140725e+08 0.051007379 0.043887564 116.01442 15.674546 6735.5189 2.6874604e+08 0.051269687 0.049844314 116.06297 15.511087 6738.2374 2.5518168e+08 0.052801861 0.058628282 116.11098 15.367056 6740.9559 2.4409768e+08 0.051770327 0.065683424 116.16170 15.214895 6743.6744 2.3280156e+08 0.046616582 0.075597242 116.21657 15.050311 6746.3930 2.2551952e+08 0.042995814 0.074418760 116.26222 14.901262 6749.1115 2.1731494e+08 0.040081616 0.072247416 116.30489 14.757254 6751.8300 2.0896249e+08 0.035313295 0.074062585 116.35829 14.595134 6754.5485 2.0127339e+08 0.033173512 0.075331462 116.41315 14.429088 6757.2670 1.8694079e+08 0.030119815 0.075929854 116.46801 14.258407 6759.9855 1.7927353e+08 0.030968905 0.076057768 116.51557 14.103708 6762.7040 1.6960012e+08 0.035441995 0.076915255 116.55824 13.959699 6765.4225 1.6175648e+08 0.038203480 0.079608321 116.60974 13.800786 6768.1410 1.5587703e+08 0.035155693 0.081363377 116.66358 13.637926 6770.8595 1.4646341e+08 0.029336105 0.088964380 116.70625 13.493918 6773.5780 1.4313244e+08 0.024139653 0.095557952 116.75019 13.345610 6776.2965 1.4002701e+08 0.018959263 0.10215152 116.79895 13.181025 6779.0150 1.3619157e+08 0.013793017 0.10874510 116.85119 13.016440 6781.7335 1.2818139e+08 0.0085978012 0.11533867 116.90605 12.851854 6784.4520 1.2395984e+08 0.0034519738 0.12193224 116.94960 12.706363 6787.1705 1.1831101e+08 -0.0016974353 0.12852581 116.99259 12.561262 6789.8890 1.1558772e+08 -0.0067709631 0.13511938 117.04135 12.396677 6792.6076 1.1155810e+08 -0.011846903 0.14171296 117.09264 12.232093 6795.3261 1.0589870e+08 -0.016935785 0.14830653 117.14750 12.067508 6798.0446 1.0392314e+08 -0.021854043 0.15490010 117.19765 11.907630 6800.7631 99993235. -0.026785486 0.16149367 117.24642 11.748338 6803.4816 95352449. -0.031711039 0.16808724 117.29518 11.583752 6806.2001 89296411. -0.036698890 0.17468082 117.34395 11.419167 6808.9186 84128197. -0.041655598 0.18127439 117.39272 11.254581 6811.6371 79605208. -0.046594417 0.18786796 117.43630 11.107500 6814.3556 79026349. -0.051332967 0.19446153 117.47897 10.963491 6817.0741 79044090. -0.056054023 0.20105510 117.53353 10.799405 6819.7926 78300117. -0.060835421 0.20764868 117.58635 10.636864 6822.5111 75842467. -0.065749343 0.21424225 117.63512 10.478375 6825.2296 71721696. -0.070827091 0.22083582 117.68388 10.315651 6827.9481 69155739. -0.075892979 0.22742939 117.73265 10.151397 6830.6666 63159941. -0.081360024 0.23402296 117.78141 9.9929066 6833.3851 57597888. -0.087073917 0.24061654 117.83354 9.8205414 6836.1036 56337006. -0.092620986 0.24721011 117.89038 9.6287321 6838.8222 58726806. -0.098035662 0.25380368 117.93914 9.4641470 6841.5407 61725523. -0.10386200 0.26039725 117.98791 9.3018006 6844.2592 58390537. -0.11177222 0.26699082 118.03668 9.1433120 6846.9777 51103542. -0.12493851 0.27358439 118.08101 8.9803930 6849.6962 46572387. -0.17301407 0.28017797 118.12421 8.8163334 6852.4147 44586764. -0.14571005 0.28677154 118.17297 8.6578431 6855.1332 45120709. -0.073095917 0.29336511 118.22535 8.4844238