Table 1: Amplitudes, $\xi _{m}$, and phases, $\phi _{m}$, of the first three harmonics obtained from the spectral analysis of the anisotropy function for the solar frequency for different muon energy thresholds.
Energy cut mth $\xi _{m}$ $\phi _{m}$ $\rho_{\rm error}$ $\sigma_{\rm stat} $
$ \rm [GeV]$ harmonic [per mil] [h] [per mil] [per mil]
  1st 0.21 18.2    
20 2nd 0.36 3.1 0.12 0.08
  3rd 0.18 6.9    
  1st 0.16 20.7    
30 2nd 0.31 3.2 0.14 0.09
  3rd 0.13 7.2    
  1st 0.10 2.9    
50 2nd 0.34 2.8 0.20 0.13
  3rd 0.15 7.6    
  1st 0.28 22.0    
100 2nd 0.43 11.2 0.40 0.26
  3rd 0.36 7.5    
$\rho_{\rm error} = 1.52$ $\sigma_{\rm stat} $ is the radius of the error circle defining a 68.5% confidence
level region. The uncertainties are statistical.

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