Object	UT Date	UT	JD	Comp Star	ΔV	σ(ΔV)	V	σ(V)
(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)
OJ 287	2010-05-19	03:41:34	2455335.65386	4	1.372	0.004	15.56	0.01
S5 0716+714	2010-05-19	04:18:52	2455335.67977	10	1.765	0.001	13.23	0.01
S4 1030+61	2010-05-19	04:46:00	2455335.69861	A	2.714	0.068
Mrk 421	2010-05-19	05:03:10	2455335.71053	1	-1.207	0.089	13.15	0.09
W Com	2010-05-19	06:38:15	2455335.77656	A	3.173	0.002	15.25	0.03
PKS1510-08	2010-05-19	07:05:28	2455335.79546	1	5.121	0.006	16.72	0.02
PKS1502+106	2010-05-19	07:53:08	2455335.82856	A	3.932	0.017
Mrk 501	2010-05-19	08:59:39	2455335.87475	A	1.260	0.001	13.87	0.01
1ES1959+650	2010-05-19	09:19:04	2455335.88823	2	2.625	0.002	15.48	0.01
PKS1510-08	2010-05-19	09:46:11	2455335.90707	1	5.128	0.006	16.73	0.02
BL Lac	2010-05-19	10:05:19	2455335.92036	B	1.368	0.001	14.31	0.01
3C 454.3	2010-05-19	10:32:20	2455335.93911	4	1.529	0.002	15.36	0.02
1ES2344+514	2010-05-19	10:50:30	2455335.95174	A	2.918	0.003
PKS2155-304	2010-05-19	11:05:39	2455335.96226	2	1.330	0.001	13.37	0.02