Object	UT Date	UT	JD	Comp Star	ΔV	σ(ΔV)	V	σ(V)
(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)
Mrk 421	2017-05-16	03:14:01	2457889.63473	1	-0.899	0.005	13.46	0.02
OJ 287	2017-05-16	03:33:16	2457889.64810	4	0.183	0.007	14.37	0.01
3C 279	2017-05-16	04:08:55	2457889.67286	1	3.020	0.007	15.42	0.01
S4 1030+61	2017-05-16	04:58:53	2457889.70756	A	4.293	0.042
Ton 599	2017-05-16	05:42:29	2457889.73784	13	1.731	0.018	17.09	0.04
PKS1502+106	2017-05-16	06:31:43	2457889.77203	A	2.833	0.041
3C 273	2017-05-16	06:52:14	2457889.78627	C	1.168	0.003	13.04	0.04
S3 1227+25	2017-05-16	07:32:54	2457889.81451	A	0.914	0.011
W Com	2017-05-16	07:41:00	2457889.82014	A	3.587	0.026	15.67	0.05
PG1553+113	2017-05-16	07:57:00	2457889.83125	A	0.247	0.007
Mrk 501	2017-05-16	08:16:39	2457889.84490	A	1.349	0.004	13.96	0.01
B2 1633+382	2017-05-16	09:10:24	2457889.88222	A	2.962	0.019	17.22	0.02