Object	UT Date	UT	JD	Comp Star	ΔV	σ(ΔV)	V	σ(V)
(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)
BL Lac	2017-09-17	05:13:51	2458013.71795	B	0.884	0.003	13.82	0.01
PKS2155-304	2017-09-17	05:34:00	2458013.73194	2	1.759	0.014	13.80	0.02
CTA102	2017-09-17	05:43:13	2458013.73834	2	1.565	0.011	16.44	0.03