GRAVITY K-band spectroscopy of HD 206893 B - Brown dwarf or exoplanet

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Table 1

Observing log.

Date	UT time		NEXP/NDIT/DIT		Airmass	τ₀	Seeing

	Start	End	HD 206893 B	HD 206893 A
2019-07-17	08:52:56	09:56:06	5/12/60 s	6/64/1 s	1.17–1.54	1.5–2.2 ms	1.11–1.71′′
2019-08-13	03:21:16	04:21:09	5/12/60 s	7/64/1 s	1.03–1.12	3.2–4.9 ms	0.80–1.00′′

Notes. NEXP, NDIT, and DIT denote the number of exposures, the number of detector integrations per exposure, and the detector integration time, respectively,and τ₀ denotes the atmospheric coherence time.

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