Object	UT Date	UT	JD	Comp Star	ΔV	σ(ΔV)	V	σ(V)
(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)
PKS1502+106	2018-03-13	11:23:08	2458190.97440	A	1.922	0.020
B2 1633+382	2018-03-13	11:34:37	2458190.98237	A	2.219	0.025	16.48	0.03
Mrk 421	2018-03-13	11:44:38	2458190.98933	1	-1.080	0.046	13.28	0.05
BL Lac	2018-03-13	12:33:21	2458191.02316	B	0.306	0.016	13.25	0.02