Object	UT Date	UT	JD	Comp Star	ΔV	σ(ΔV)	V	σ(V)
(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)
BL Lac	2013-12-03	02:03:50	2456629.58600	B	0.943	0.003	13.88	0.01
BL Lac	2013-12-03	03:42:48	2456629.65472	B	0.940	0.004	13.88	0.01
BL Lac	2013-12-03	05:35:37	2456629.73307	B	0.958	0.004	13.90	0.01