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Table 2

Best solutions for the rotational period and linear phase function coefficient β of 67P/C-G using the May 2006, August 2006, and July 2007 photometry of the nucleus.

Solution ID Trot,PDM [h] Trot,χ2 [h] βPDM [mag/°] βχ2 [mag/°] Trot,mean [h] βmean [mag/°]

Solution 1 12.6805 12.6801 0.075 0.073 12.6803 ± 0.0002 0.074 ± 0.002
Solution 2 12.6968 12.6964 0.074 0.072 12.6966 ± 0.0002 0.073 ± 0.002
Solution 3 12.7546 12.7546 0.063 0.063 12.7546 ± 0.0002 0.063 ± 0.002
Solution 4 12.7621 12.7617 0.075 0.075 12.7619 ± 0.0002 0.075 ± 0.002
Solution 5 12.7786 12.7785 0.075 0.073 12.7786 ± 0.0002 0.074 ± 0.002
Solution 6 12.7874 12.7875 0.064 0.064 12.7875 ± 0.0002 0.064 ± 0.002
Solution 7 12.8370 12.8368 0.062 0.061 12.8369 ± 0.0002 0.062 ± 0.002
Solution 8 12.8446 12.8446 0.073 0.073 12.8446 ± 0.0002 0.073 ± 0.002
Solution 9 12.8612 12.8611 0.074 0.075 12.8612 ± 0.0002 0.075 ± 0.002

Notes. Trot,mean and βmean are the mean values of the rotational periods (Trot) and linear phase coefficients (β), respectively, determined with the PDM method and the χ2 minimisation method.

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