Object	UT Date	UT	JD	Comp Star	ΔV	σ(ΔV)	V	σ(V)
(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)
Mrk 421	2013-05-12	03:23:59	2456424.64166	1	-2.162	0.002	12.20	0.02
S5 0716+714	2013-05-12	03:50:24	2456424.66000	10	2.442	0.001	13.90	0.01
OJ 248	2013-05-12	04:22:50	2456424.68252	2	2.515	0.010	17.22	0.02
OJ 287	2013-05-12	04:40:34	2456424.69484	4	0.603	0.003	14.79	0.01
3C 279	2013-05-12	06:00:37	2456424.75043	1	3.646	0.004	16.05	0.01
Mrk 421	2013-05-12	06:37:48	2456424.77625	1	-2.179	0.002	12.18	0.02
PKS1222+216	2013-05-12	07:02:20	2456424.79329	1	1.596	0.003	15.79	0.04
PKS1510-08	2013-05-12	07:29:01	2456424.81182	1	5.030	0.006	16.63	0.03
B2 1633+382	2013-05-12	09:21:25	2456424.88987	A	2.808	0.005	17.07	0.01
Mrk 501	2013-05-12	09:39:44	2456424.90259	A	1.342	0.002	13.95	0.01
BL Lac	2013-05-12	10:00:27	2456424.91698	B	2.425	0.007	15.36	0.01
3C 454.3	2013-05-12	10:57:43	2456424.95675	4	2.259	0.004	16.09	0.03
1ES1959+650	2013-05-12	11:14:48	2456424.96861	2	2.199	0.002	15.06	0.02
PKS2155-304	2013-05-12	11:31:06	2456424.97992	2	1.744	0.010	13.78	0.01