Object	UT Date	UT	JD	Comp Star	ΔV	σ(ΔV)	V	σ(V)
(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)
Mrk 421	2013-04-14	02:48:35	2456396.61707	1	-2.185	0.025	12.17	0.03
Mrk 421	2013-04-14	04:50:16	2456396.70157	1	-2.212	0.008	12.15	0.02
Mrk 421	2013-04-14	06:16:11	2456396.76124	1	-2.194	0.015	12.17	0.02
Mrk 421	2013-04-14	10:06:58	2456396.92150	1	-2.187	0.021	12.17	0.02
BL Lac	2013-04-14	11:35:42	2456396.98313	B	2.731	0.010	15.67	0.01
CTA102	2013-04-14	11:54:51	2456396.99642	2	1.799	0.033	16.68	0.04