Long-term optical monitoring of TeV emitting blazars - I. Data analysis

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Table 2.

Telescopes and CCD cameras used in the monitoring.

Telescope	Camera	Pixel format	Pixel scale	Gain	Readout noise	Color term	N_frms
			(arcsec pix.⁻¹)	(e⁻/ADU)	(e⁻)	ζ
Tuorla 1.03 m	SBIG-ST1001E	1024×1024^a	1.17^b	2.3	17	−0.05	7941
KVA 35 cm	SBIG-ST8	1530×1020^a	0.94^b	2.3	14	0.11	35 268
KVA 35 cm	Apogee Alta U47	1024×1024	0.68	1.6	10	0.01	4597

Notes. The last column gives the number of CCD frames obtained with each instrument.

^(a)

Binned by 2 × 2 pixels during the observations.

^(b)

When binned.

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