Object	UT Date	UT	JD	Comp Star	ΔV	σ(ΔV)	V	σ(V)
(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)
BL Lac	2017-10-20	03:24:46	2458046.64220	B	0.951	0.005	13.89	0.01
TXS0506+056	2017-10-20	08:50:07	2458046.86814	A	0.313	0.005
VER J0521+211	2017-10-20	10:05:52	2458046.92074	A	3.160	0.020
S4 1030+61	2017-10-20	11:13:23	2458046.96763	A	3.154	0.012
OJ 287	2017-10-20	11:32:29	2458046.98089	4	1.719	0.011	15.91	0.01
PKS0736+01	2017-10-20	11:54:47	2458046.99638	1	4.138	0.017	16.55	0.04
Ton 599	2017-10-20	12:17:24	2458047.01208	13	0.479	0.017	15.84	0.04
Mrk 421	2017-10-20	12:32:42	2458047.02271	1	-1.157	0.008	13.20	0.02