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Table 4:

Data subset used for the frequency analysis.
Date JD $_{\rm first}$ JD $_{\rm last}$ N $_{\rm spec}$ Duration
(1) (2) (3) (4) (5)
Jan. 12 3747.9537 3748.1607 26 4.97
Jan. 13 3749.0013 3749.1099 13 2.60
Jan. 14 3749.8911 3749.9411 6 1.20
Jan. 15 3751.0417 3751.1838 16 3.41
Jan. 16 3751.8958 3752.1861 28 6.97
Jan. 18 3753.9037 3754.1257 16 5.33
Jan. 19 3754.9015 3754.9259 8 1.32
Jan. 20 3756.0609 3756.1912 16 3.13
Jan. 22 3757.9004 3758.1621 32 6.28
Total     161 35.2
(1) Date (2006); (2) Julian date (2 450 000+) of the first; and (3) last observation of the night;
(4) number of spectra; and (5) summed exposure time (hrs) of the night.

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