Object	UT Date	UT	JD	Comp Star	ΔV	σ(ΔV)	V	σ(V)
(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)
OJ 287	2012-04-27	03:23:08	2456044.64106	4	0.276	0.004	14.47	0.01
OJ 248	2012-04-27	04:10:24	2456044.67389	2	2.599	0.020	17.31	0.03
Mrk 421	2012-04-27	06:11:54	2456044.75826	1	-1.525	0.003	12.83	0.02
Ton 599	2012-04-27	06:48:09	2456044.78344	13	1.794	0.013	17.15	0.04
PKS1244-255	2012-04-27	07:26:38	2456044.81016	A	2.338	0.012
3C 279	2012-04-27	07:53:12	2456044.82861	1	3.238	0.005	15.64	0.01
PKS1510-08	2012-04-27	08:57:28	2456044.87324	1	4.830	0.009	16.43	0.03
PKS1222+216	2012-04-27	09:47:42	2456044.90813	1	1.727	0.008	15.92	0.04
W Com	2012-04-27	10:06:35	2456044.92124	A	2.948	0.004	15.03	0.04
B2 1633+382	2012-04-27	10:44:08	2456044.94731	A	3.445	0.015	17.71	0.02
Mrk 501	2012-04-27	11:01:02	2456044.95905	A	1.323	0.002	13.93	0.01
BL Lac	2012-04-27	11:20:13	2456044.97237	B	1.301	0.022	14.24	0.02
3C 454.3	2012-04-27	11:39:43	2456044.98591	4	2.719	0.023	16.55	0.04