Identification of three cataclysmic variables detected by the ART-XC and eROSITA telescopes on board the SRG during the all-sky X-ray survey

The Early Data Release of eROSITA and Mikhail Pavlinsky ART-XC on the SRG mission

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Table 5

Log of optical observations with the AZT-33IK telescope.

	Spectroscopy				Photometry
Object	Date	Exp. time	Grism	Slit	Date	Exp. time	Filter
SRGAJ194638.9+704552	2020-10-23	3 × 60 s	VPHG600G	2″	2021-06-17	420 × 15 s	r
SRGA J204547.8+672642	2020-10-21	3 × 200 s	VPHG600G	2″	2021-06-18	540 × 15 s	r
SRGAJ225412.8+690658	2021-05-14	5 × 100 s	VPHG600G	2″	2021-06-19	240 × 30 s	r

Notes. The exp. time columns show the number of obtained images during continuous observations and the exposure time of each frame. The date columns show the observation dates in the YYYY-MM-DD format, UTC+0.

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