Object	UT Date	UT	JD	Comp Star	ΔV	σ(ΔV)	V	σ(V)
(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)
3C 279	2015-04-21	07:34:17	2457133.81547	1	3.790	0.013	16.19	0.02
Mrk 421	2015-04-21	07:44:43	2457133.82272	1	-1.484	0.005	12.88	0.02
PKS1222+216	2015-04-21	08:07:32	2457133.83856	1	1.079	0.007	15.27	0.04
PKS1441+252	2015-04-21	08:31:16	2457133.85504	A	0.861	0.013
PKS1510-08	2015-04-21	08:53:45	2457133.87066	1	3.671	0.007	15.27	0.03
PKS1441+252	2015-04-21	10:35:42	2457133.94146	A	0.854	0.026
PKS1502+106	2015-04-21	11:10:32	2457133.96565	A	1.626	0.019
BL Lac	2015-04-21	11:31:36	2457133.98028	B	1.040	0.009	13.98	0.01
PKS1441+252	2015-04-21	11:48:18	2457133.99188	A	0.854	0.016
Mrk 501	2015-04-21	11:55:31	2457133.99688	A	1.282	0.004	13.89	0.01