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Table 2

Journal of archival spectroscopic observations of ζ Ori A obtained with HEROS, FEROS and UVES.

Date JD Instrument T exp S / N φ orb

1995 2 449 776.024 HEROS 57 × 1200 1200 0.90
1997 2 450 454.379 HEROS 16 × 1200 1000 0.15
1999 2 451 147.333 HEROS 64 × 1200 1200 0.41
2006 2 453 738.159 FEROS 60 100 0.37
2007 2 454 501.018 FEROS 2 × 20 250 0.66
2009 2 454 953.970 FEROS 5 × 10 200 0.84
2010 2 455 435.373 UVES 36 × 2 2000 0.01

Notes. Columns: date and heliocentric Julian date, instrument used, exposure time, signal-to-noise ratio, and orbital phase.

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