Object	UT Date	UT	JD	Comp Star	ΔV	σ(ΔV)	V	σ(V)
(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)
OJ 287	2018-06-21	03:54:54	2458290.66313	4	0.716	0.012	14.91	0.02
Mrk 421	2018-06-21	04:13:52	2458290.67630	1	-0.504	0.005	13.86	0.02
3C 279	2018-06-21	04:35:13	2458290.69112	1	2.783	0.007	15.18	0.01
3C 273	2018-06-21	04:53:16	2458290.70366	C	1.190	0.005	13.06	0.04
Ton 599	2018-06-21	05:17:08	2458290.72023	13	1.342	0.013	16.70	0.04
PKS1222+216	2018-06-21	05:39:36	2458290.73583	1	1.404	0.007	15.59	0.04
W Com	2018-06-21	05:57:36	2458290.74833	A	2.860	0.004	14.94	0.04
PKS1510-08	2018-06-21	07:35:21	2458290.81622	1	4.880	0.012	16.48	0.03
PKS1502+106	2018-06-21	08:15:32	2458290.84412	A	2.286	0.017
B2 1633+382	2018-06-21	09:22:32	2458290.89065	A	2.074	0.005	16.33	0.01
BL Lac	2018-06-21	09:40:01	2458290.90279	B	0.730	0.002	13.67	0.01
1ES1959+650	2018-06-21	09:54:18	2458290.91271	2	1.320	0.002	14.18	0.02
CTA102	2018-06-21	10:15:30	2458290.92743	2	1.404	0.006	16.28	0.03
3C 454.3	2018-06-21	10:33:31	2458290.93994	4	2.452	0.006	16.28	0.03
PKS2155-304	2018-06-21	10:47:21	2458290.94955	2	1.746	0.004	13.79	0.01
4C 28.07	2018-06-21	11:05:36	2458290.96222	A	2.335	0.010
3C 66A	2018-06-21	11:20:27	2458290.97253	A	1.629	0.027	15.28	0.03