Object	UT Date	UT	JD	Comp Star	ΔV	σ(ΔV)	V	σ(V)
(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)
PKS0454-234	2012-02-20	02:40:28	2455977.61143	A	3.762	0.006
S5 0716+714	2012-02-20	08:39:07	2455977.86050	10	1.985	0.001	13.45	0.01
OJ 287	2012-02-20	09:00:32	2455977.87536	4	1.197	0.004	15.39	0.01
Mrk 421	2012-02-20	09:16:26	2455977.88641	1	-1.475	0.002	12.89	0.02
PKS1222+216	2012-02-20	10:53:07	2455977.95355	1	1.752	0.005	15.94	0.04
3C 273	2012-02-20	11:06:34	2455977.96289	C	0.871	0.004	12.74	0.04
3C 279	2012-02-20	11:28:04	2455977.97782	1	2.896	0.003	15.30	0.01
PKS1510-08	2012-02-20	11:55:17	2455977.99672	1	4.773	0.006	16.37	0.03
B2 1633+382	2012-02-20	12:33:44	2455978.02343	A	3.766	0.046	18.03	0.05
Mrk 501	2012-02-20	12:49:06	2455978.03410	A	1.333	0.014	13.94	0.01
1ES1959+650	2012-02-20	13:07:20	2455978.04675	2	1.834	0.018	14.69	0.02