We present the first in situ observations of turbulence in the local interstellar magnetic field , measured by Voyager 1 from 2013.36 to 2014.64. The fluctuations of the components of , the rms of the fluctuations of the components of , and magnitude of have a Kolmogorov spectrum in the range from to Hz. The turbulence is compressible; the variance is primarily along the average magnetic field. The turbulence is weak, the ratio of the turbulent fluctuations to the average field being 0.023. A small linear increase in the azimuthal angle λ of and a small linear decrease in the elevation angle δ were observed during the 468 day interval under consideration, which might be related to magnetic draping.
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Burlaga et al. (2015) studied this question.
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