Object	UT Date	UT	JD	Comp Star	ΔV	σ(ΔV)	V	σ(V)
(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)
Mrk 421	2012-04-30	03:26:58	2456047.64373	1	-1.516	0.004	12.84	0.02
OJ 287	2012-04-30	03:48:31	2456047.65869	4	0.409	0.007	14.60	0.01
3C 273	2012-04-30	04:05:38	2456047.67058	C	0.863	0.002	12.73	0.04
Ton 599	2012-04-30	04:46:59	2456047.69929	13	0.719	0.011	16.08	0.04
3C 279	2012-04-30	05:24:35	2456047.72541	1	3.194	0.005	15.59	0.01
PKS1244-255	2012-04-30	06:02:30	2456047.75174	A	2.382	0.012
PKS1510-08	2012-04-30	08:19:45	2456047.84705	1	4.896	0.010	16.50	0.03
PKS1222+216	2012-04-30	09:19:38	2456047.88863	1	1.698	0.007	15.89	0.04
W Com	2012-04-30	09:37:47	2456047.90124	A	3.134	0.005	15.21	0.04
PG1553+113	2012-04-30	09:54:39	2456047.91295	A	0.004	0.003
Mrk 501	2012-04-30	10:10:31	2456047.92397	A	1.300	0.002	13.91	0.01
B2 1846+32A	2012-04-30	10:47:06	2456047.94938	A	3.528	0.006
BL Lac	2012-04-30	11:07:34	2456047.96358	B	1.552	0.009	14.49	0.01
3C 454.3	2012-04-30	11:26:46	2456047.97692	4	2.801	0.013	16.63	0.03