Object	UT Date	UT	JD	Comp Star	ΔV	σ(ΔV)	V	σ(V)
(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)
Mrk 421	2012-06-21	03:45:58	2456099.65692	1	-1.915	0.004	12.44	0.02
Ton 599	2012-06-21	04:58:01	2456099.70696	13	0.023	0.037	15.38	0.04
3C 279	2012-06-21	05:33:44	2456099.73175	1	3.485	0.013	15.88	0.02
PKS1222+216	2012-06-21	06:41:11	2456099.77859	1	1.567	0.011	15.76	0.04
W Com	2012-06-21	07:08:01	2456099.79723	A	3.681	0.012	15.76	0.04
PKS1510-08	2012-06-21	07:43:30	2456099.82188	1	4.931	0.020	16.53	0.04
B2 1633+382	2012-06-21	08:29:24	2456099.85375	A	3.328	0.016	17.59	0.02
Mrk 501	2012-06-21	08:48:57	2456099.86732	A	1.343	0.005	13.95	0.01
BL Lac	2012-06-21	09:10:01	2456099.88196	B	1.553	0.003	14.49	0.01
CTA102	2012-06-21	09:44:18	2456099.90576	2	1.880	0.013	16.76	0.03
PKS2233-148	2012-06-21	10:40:17	2456099.94464	A	2.434	0.011
PMN J2345-1555	2012-06-21	10:58:24	2456099.95722	A	-1.419	0.032
PKS2155-304	2012-06-21	11:12:27	2456099.96697	2	1.723	0.006	13.76	0.01