Object	UT Date	UT	JD	Comp Star	ΔV	σ(ΔV)	V	σ(V)
(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)
Mrk 501	2015-07-21	03:34:12	2457224.64875	A	1.233	0.002	13.84	0.01
Mrk 421	2015-07-21	03:51:39	2457224.66087	1	-1.936	0.004	12.42	0.02
3C 279	2015-07-21	04:26:11	2457224.68485	1	3.097	0.011	15.50	0.01
PKS1222+216	2015-07-21	04:47:31	2457224.69966	1	0.928	0.005	15.12	0.04
S3 1227+25	2015-07-21	05:06:51	2457224.71309	A	0.513	0.018
PKS1510-08	2015-07-21	05:25:48	2457224.72625	1	3.140	0.011	14.74	0.03
PKS1502+106	2015-07-21	05:53:57	2457224.74580	A	1.019	0.007
PKS1441+252	2015-07-21	06:34:26	2457224.77391	A	2.452	0.016
B2 1633+382	2015-07-21	07:15:42	2457224.80257	A	2.942	0.009	17.20	0.01
BL Lac	2015-07-21	08:13:28	2457224.84269	B	1.131	0.002	14.07	0.01
3C 454.3	2015-07-21	08:35:03	2457224.85767	4	2.308	0.005	16.14	0.03
CTA102	2015-07-21	09:02:39	2457224.87684	2	2.175	0.007	17.06	0.03
PKS2155-304	2015-07-21	09:20:17	2457224.88909	2	1.908	0.004	13.95	0.01
AO0235+164	2015-07-21	10:54:11	2457224.95429	4	3.517	0.007	16.56	0.01
MG1 J021114+1051	2015-07-21	11:07:19	2457224.96341	A	0.386	0.005
3C 66A	2015-07-21	11:20:16	2457224.97241	A	0.816	0.002	14.47	0.02