The paper reports the results of two balloon flights, covering half the sky, to measure the large-scale anisotropy of the 2.7 K cosmic radiation. Radiometers at three wavelengths give results which are well fitted by a dipole distribution with amplitude 2.99 plus or minus 0.34 mK and direction R.A. = 12.3h plus or minus 0.4h and decl. = -1 deg plus or minus 6 deg. An upper limit of 2 mK (95% confidence) is found for the amplitudes of nonpolar components of a quadrupole distribution.
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Cheng et al. (1979) studied this question.
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