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This may be expressed as the square root of the angular power spectrum in a band of multipoles between $l_{eff}=69^{+29}_{-22}$. We find $\\delta T_l = \\sqrt{l(2l+1)<|a_l^m|^2>/4\\pi} = 42^{+12}_{-7} \\mu$K. The measured spectral index of the fluctuations is consistent with zero, the value expected for the CMB. 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