Object	UT Date	UT	JD	Comp Star	ΔV	σ(ΔV)	V	σ(V)
(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)
3C 273	2012-07-18	03:37:16	2456126.65087	C	0.951	0.003	12.82	0.04
Mrk 421	2012-07-18	03:53:16	2456126.66199	1	-1.960	0.007	12.40	0.02
3C 279	2012-07-18	04:29:53	2456126.68741	1	3.829	0.021	16.23	0.02
W Com	2012-07-18	05:43:34	2456126.73858	A	4.075	0.011	16.15	0.04
B2 1633+382	2012-07-18	06:45:44	2456126.78175	A	3.233	0.021	17.49	0.02
Mrk 501	2012-07-18	07:07:43	2456126.79703	A	1.312	0.004	13.92	0.01
1ES1959+650	2012-07-18	07:29:40	2456126.81227	2	1.649	0.002	14.51	0.02
BL Lac	2012-07-18	07:48:11	2456126.82513	B	1.402	0.005	14.34	0.01
TXS2159+505	2012-07-18	08:37:28	2456126.85935	A	5.843	0.037
PKS2155-304	2012-07-18	10:17:16	2456126.92866	2	1.731	0.002	13.77	0.01
PMN J2345-1555	2012-07-18	11:11:09	2456126.96608	A	-1.106	0.046
PKS2233-148	2012-07-18	11:19:03	2456126.97156	A	2.144	0.014