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Dipole anisotropy in the cosmic background radiation in the 500-3000-{μ}m wavelength region has been measured in a balloon-borne experiment. A dipole amplitude was found with TD=(2.9_-0.6+1.3) mK, at R. A. = 11h 24m±{}0h 40m, δ=3^∘±10^∘, the errors arising essentially from detector and magnetometer calibrations. This Letter also reports the existence of a second harmonic TQ=(0.9_-0.2+0.4) mK.
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Fabbri et al. (1980) studied this question.
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