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Table 1.

Journal of analysed spectroscopic data.

Date Instrument λλ S/N(1) V, mag
2013 Oct. 21 HIRES 38 000 115 11.68
2013 Nov. 13 Hamilton 62 000 30 12.86
2013 Nov. 14 Hamilton 62 000 35 11.8
2013 Nov. 16 HIRES 38 000 130 (2) ∼11.8
2016 Aug. 10 Hamilton 62 000 90 11.48

Notes.

(1)

Signal-to-noise ratio (per pixel) was measured for each spectrogram in the region around the Hα line.

(2)

This value is related to the first (best) among three spectrograms which were obtained on that night.

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