# # 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 = 52.576878 km # Date (UTC) = 2014-11-22T09:11:42.579 # Date (julian) = 2456983.88313170 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6503.0844 9.4492126e+10 0.060112134 0.033213303 -10.901190 60.878460 6505.6544 8.1761743e+10 0.070093755 0.033988278 -11.148988 60.751681 6508.2244 7.1193207e+10 0.080271467 0.034763254 -11.375448 60.631303 6510.7944 6.1626917e+10 0.090584454 0.035538229 -11.587224 60.515331 6513.3644 5.4063259e+10 0.10125396 0.036313204 -11.817431 60.392775 6515.9344 4.7675090e+10 0.11229327 0.037088179 -12.059465 60.265994 6518.5044 4.2490090e+10 0.12387194 0.037863154 -12.270653 60.153064 6521.0744 3.8811617e+10 0.13627557 0.038638129 -12.477387 60.042133 6523.6444 3.4990089e+10 0.14424534 0.039338817 -12.705295 59.911954 6526.2144 3.1527476e+10 0.14899132 0.039892817 -12.931328 59.782769 6528.7844 2.8473417e+10 0.15365647 0.042064712 -13.133020 59.671840 6531.3543 2.5835734e+10 0.15737194 0.045744437 -13.338679 59.557191 6533.9243 2.3460368e+10 0.16021910 0.047912405 -13.563425 59.424646 6536.4943 2.1174142e+10 0.16129898 0.048232798 -13.775898 59.299340 6539.0643 1.9155745e+10 0.16283853 0.049721502 -13.972547 59.183368 6541.6343 1.7537130e+10 0.16372348 0.051120822 -14.166909 59.067396 6544.2043 1.6122246e+10 0.16394506 0.051810098 -14.358516 58.951424 6546.7743 1.4742739e+10 0.16415952 0.053101665 -14.560290 58.827657 6549.3443 1.3381990e+10 0.16338003 0.054317162 -14.773510 58.695115 6551.9143 1.2122191e+10 0.16253139 0.055556687 -14.967137 58.574752 6554.4843 1.1044925e+10 0.16038168 0.054842543 -15.153702 58.458780 6557.0543 1.0184895e+10 0.15824122 0.053832073 -15.336476 58.342808 6559.6243 9.4562974e+09 0.15556187 0.052316716 -15.517998 58.226836 6562.1943 8.7174857e+09 0.15287757 0.050695032 -15.719455 58.098127 6564.7643 8.0209488e+09 0.15044063 0.048425225 -15.925881 57.965968 6567.3343 7.3884697e+09 0.14864861 0.046334548 -16.102361 57.844953 6569.9043 6.8256635e+09 0.14743295 0.044911279 -16.279816 57.723360 6572.4743 6.3255858e+09 0.14599001 0.043958555 -16.475748 57.590817 6575.0443 5.8233558e+09 0.14433534 0.042330299 -16.663978 57.463486 6577.6143 5.3783742e+09 0.14218304 0.039255524 -16.835442 57.347496 6580.1843 5.0249088e+09 0.13991352 0.036350478 -17.006897 57.229838 6582.7542 4.7404915e+09 0.13783494 0.035088543 -17.178334 57.108823 6585.3242 4.4597200e+09 0.13575132 0.033711550 -17.356303 56.981779 6587.8942 4.1530038e+09 0.13396805 0.033356498 -17.546474 56.843475 6590.4642 3.8541002e+09 0.13149555 0.030198525 -17.718968 56.718868 6593.0342 3.5936369e+09 0.12882584 0.027070401 -17.880321 56.602896 6595.6042 3.3905979e+09 0.12544711 0.025686231 -18.044851 56.483746 6598.1742 3.2088755e+09 0.12252314 0.025323988 -18.211246 56.362730 6600.7442 3.0113745e+09 0.12132925 0.026519835 -18.385566 56.230530 6603.3142 2.8134762e+09 0.11944040 0.026477265 -18.564211 56.092226 6605.8842 2.6331926e+09 0.11797307 0.027406817 -18.722495 55.974278 6608.4542 2.4785913e+09 0.11469176 0.023720363 -18.878805 55.858304 6611.0242 2.3489614e+09 0.11094130 0.024943030 -19.035117 55.737651 6613.5942 2.2248121e+09 0.10999530 0.023791598 -19.191429 55.616637 6616.1642 2.1179546e+09 0.10856762 0.023308067 -19.342973 55.495622 6618.7342 2.0059939e+09 0.10807664 0.024325185 -19.494241 55.374606 6621.3042 1.8884363e+09 0.10741202 0.024988628 -19.666300 55.236960 6623.8742 1.7663860e+09 0.10569548 0.024815690 -19.833141 55.102573 6626.4442 1.6536855e+09 0.10433480 0.026025003 -19.979367 54.981558 6629.0142 1.5689267e+09 0.10272874 0.026106546 -20.125594 54.860543 6631.5841 1.4955926e+09 0.10073957 0.025990104 -20.271819 54.739529 6634.1541 1.4209770e+09 0.098948479 0.026338087 -20.423481 54.614016 6636.7241 1.3390220e+09 0.097211870 0.026268540 -20.590601 54.475710 6639.2941 1.2637826e+09 0.096049054 0.025522945 -20.744107 54.343833 6641.8641 1.1895217e+09 0.096348262 0.025151235 -20.885292 54.217775 6644.4341 1.1227065e+09 0.094962322 0.025390526 -21.037403 54.085083 6647.0041 1.0529924e+09 0.093427118 0.026439949 -21.198759 53.946776 6649.5741 9.8704555e+08 0.092000087 0.026842300 -21.339799 53.822400 6652.1441 9.3304506e+08 0.091038955 0.027290171 -21.475961 53.701368 6654.7141 8.8393027e+08 0.089515950 0.027732011 -21.612106 53.580350 6657.2841 8.4569150e+08 0.086780800 0.029230657 -21.748248 53.459334 6659.8541 8.0782391e+08 0.084505936 0.031656434 -21.900734 53.318950 6662.4241 7.6894774e+08 0.082325908 0.032806333 -22.053757 53.177301 6664.9941 7.2952256e+08 0.081192100 0.028568778 -22.184856 53.056286 6667.5641 6.9465934e+08 0.080493927 0.027310653 -22.315955 52.935272 6670.1341 6.5888186e+08 0.079874571 0.027266519 -22.447055 52.814256 6672.7041 6.3184586e+08 0.079561166 0.027287690 -22.580748 52.690049 6675.2741 5.9571147e+08 0.077866230 0.030323289 -22.730579 52.545980 6677.8441 5.6428358e+08 0.076126228 0.031158301 -22.870825 52.411208 6680.4141 5.3535705e+08 0.076481939 0.029530828 -22.996882 52.290194 6682.9840 5.0478399e+08 0.077355097 0.031176393 -23.130502 52.159498 6685.5540 4.8063440e+08 0.076967926 0.033290043 -23.274571 52.015430 6688.1240 4.5926499e+08 0.074268389 0.033813823 -23.402855 51.887145 6690.6940 4.4622028e+08 0.072106048 0.033036327 -23.523870 51.766129 6693.2640 4.2923924e+08 0.070921983 0.031513511 -23.657014 51.628943 6695.8340 4.1174448e+08 0.070293336 0.029706274 -23.795319 51.484875 6698.4040 3.9069381e+08 0.069123680 0.030772377 -23.916920 51.363081 6700.9740 3.7112836e+08 0.066889869 0.031390170 -24.037935 51.242067 6703.5440 3.5058527e+08 0.066544490 0.035036514 -24.175945 51.098393 6706.1140 3.2786084e+08 0.066511612 0.038644816 -24.308720 50.960033 6708.6840 3.0873410e+08 0.065858983 0.040788427 -24.424693 50.839017 6711.2540 2.9331610e+08 0.063762994 0.040981206 -24.545047 50.711905 6713.8240 2.8354739e+08 0.061011782 0.046666807 -24.677590 50.567837 6716.3940 2.7337428e+08 0.058665471 0.048981659 -24.801364 50.433299 6718.9640 2.6257620e+08 0.055714120 0.051313735 -24.917336 50.307242 6721.5340 2.4809140e+08 0.056060900 0.050464787 -25.039209 50.174499 6724.1040 2.3343278e+08 0.053817381 0.049058475 -25.165990 50.036192 6726.6740 2.2477858e+08 0.049947151 0.040957446 -25.279921 49.907815 6729.2440 2.1571684e+08 0.049343847 0.040882824 -25.390851 49.781758 6731.8140 2.0631312e+08 0.047287806 0.043369938 -25.514895 49.645568 6734.3839 1.9492399e+08 0.046554154 0.049330499 -25.641676 49.506732 6736.9539 1.8381857e+08 0.048622065 0.053961436 -25.768456 49.362664 6739.5239 1.7294015e+08 0.049214477 0.063467749 -25.887782 49.225022 6742.0939 1.6373431e+08 0.046835830 0.068839630 -25.993670 49.098965 6744.6639 1.5566149e+08 0.042009644 0.078306942 -26.105209 48.966179 6747.2339 1.4918167e+08 0.037146921 0.067280631 -26.226227 48.822111 6749.8039 1.4414594e+08 0.035101616 0.072057820 -26.347244 48.681721 6752.3739 1.3748360e+08 0.031670863 0.073701792 -26.468261 48.543414 6754.9439 1.3222300e+08 0.029725643 0.074695553 -26.571064 48.416169 6757.5139 1.2592747e+08 0.027251489 0.075180506 -26.671911 48.290111 6760.0839 1.2055650e+08 0.028004538 0.076221255 -26.791309 48.147488 6762.6539 1.1480548e+08 0.032445143 0.076996067 -26.911263 48.003419 6765.2239 1.0796791e+08 0.035221141 0.079572064 -27.026518 47.859351 6767.7939 1.0519914e+08 0.033123346 0.081086826 -27.141773 47.717872 6770.3639 1.0000470e+08 0.027476232 0.087762257 -27.257028 47.579568 6772.9339 95724218. 0.022574534 0.093995624 -27.368168 47.437149 6775.5039 91510890. 0.017678361 0.10022899 -27.477659 47.293081 6778.0739 87984799. 0.012810589 0.10646236 -27.573769 47.166620 6780.6439 84904927. 0.0079880024 0.11269573 -27.669587 47.040545 6783.2138 81423936. 0.0031824975 0.11892909 -27.784739 46.896578 6785.7838 76716398. -0.0016623912 0.12516246 -27.896982 46.754026 6788.3538 70328807. -0.0066190492 0.13139583 -28.000710 46.615719 6790.9238 67599911. -0.011499413 0.13762920 -28.107463 46.474389 6793.4938 67243634. -0.016337362 0.14386256 -28.216955 46.330321 6796.0638 63565408. -0.021486593 0.15009593 -28.326447 46.186253 6798.6338 62216182. -0.026755231 0.15632930 -28.435627 46.042185 6801.2038 58047607. -0.032806929 0.16256267 -28.539356 45.898116 6803.7738 55318524. -0.040727854 0.16879603 -28.643086 45.754048 6806.3438 54243690. -0.064039142 0.17502940 -28.746816 45.609979 6808.9138 49994753. -0.053693225 0.18126277 -28.850544 45.465910 6811.4838 47900611. -0.020577914 0.18749614 -28.954273 45.321842