First light of engineered diffusers at the Nordic Optical Telescope reveal time variability of the optical eclipse depth of WASP-12b

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Table 1

Basic characteristics of the engineered diffusers.

			FWHM	FWHM
ED #	DM	Angle	(FASU A)	(FASU B)	DFP
	(mm)	°	(arcsec)	(arcsec)	(mm)
1	90	0.35	4.8	5.3	100.5
2	90	0.50	6.4	7.5	117.0

Notes. From left to right: ED number, diameter (DM) in mm, diffusing angle, stellar FWHM for the diffusers placed in FASU A and FASU B, and the distances from the upper filter surface to the focal plane (DFP).

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