Object	UT Date	UT	JD	Comp Star	ΔV	σ(ΔV)	V	σ(V)
(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)
OJ 287	2012-04-23	03:19:27	2456040.63850	4	0.051	0.004	14.24	0.01
BZU J0742+5444	2012-04-23	04:52:33	2456040.70316	A	4.110	0.032
Mrk 421	2012-04-23	05:17:53	2456040.72075	1	-1.643	0.004	12.72	0.02
Ton 599	2012-04-23	06:35:25	2456040.77459	13	1.485	0.013	16.84	0.04
PKS1222+216	2012-04-23	07:05:49	2456040.79571	1	1.745	0.027	15.93	0.04
PKS1510-08	2012-04-23	10:22:55	2456040.93258	1	4.664	0.011	16.26	0.03