Object	UT Date	UT	JD	Comp Star	ΔV	σ(ΔV)	V	σ(V)
(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)
Mrk 421	2017-10-15	11:53:56	2458041.99579	1	-1.100	0.015	13.26	0.03
Mrk 421	2017-10-16	11:55:46	2458042.99706	1	-1.091	0.005	13.27	0.02
Mrk 421	2017-10-17	12:31:33	2458044.02191	1	-1.128	0.010	13.23	0.02
Mrk 421	2017-10-20	12:32:42	2458047.02271	1	-1.157	0.008	13.20	0.02
Mrk 421	2017-10-21	12:39:56	2458048.02773	1	-1.127	0.006	13.23	0.02
Mrk 421	2017-10-22	12:37:56	2458049.02634	1	-1.164	0.005	13.20	0.02
Mrk 421	2017-11-16	11:34:02	2458073.98197	1	-1.088	0.007	13.27	0.02
Mrk 421	2017-11-17	10:48:46	2458074.95053	1	-1.102	0.037	13.26	0.04
Mrk 421	2017-11-18	10:38:55	2458075.94369	1	-1.124	0.045	13.24	0.05
Mrk 421	2017-11-19	11:03:36	2458076.96083	1	-1.077	0.005	13.28	0.02
Mrk 421	2017-11-20	09:35:57	2458077.89997	1	-1.093	0.004	13.27	0.02
Mrk 421	2017-11-21	10:48:53	2458078.95061	1	-1.178	0.005	13.18	0.02
Mrk 421	2017-11-22	10:49:30	2458079.95104	1	-1.188	0.031	13.17	0.04
Mrk 421	2017-12-08	11:50:02	2458095.99308	1	-1.045	0.011	13.31	0.02
Mrk 421	2017-12-09	10:22:33	2458096.93233	1	-1.038	0.010	13.32	0.02
Mrk 421	2017-12-13	09:47:20	2458100.90787	1	-1.095	0.003	13.26	0.02
Mrk 421	2017-12-14	09:41:07	2458101.90355	1	-1.077	0.012	13.28	0.02
Mrk 421	2017-12-15	10:00:16	2458102.91685	1	-1.135	0.005	13.22	0.02
Mrk 421	2017-12-16	10:52:46	2458103.95331	1	-1.149	0.003	13.21	0.02
Mrk 421	2017-12-21	09:44:11	2458108.90568	1	-1.214	0.002	13.15	0.02
Mrk 421	2018-01-12	09:34:56	2458130.89926	1	-1.198	0.010	13.16	0.02
Mrk 421	2018-01-13	10:49:54	2458131.95132	1	-1.209	0.003	13.15	0.02
Mrk 421	2018-01-14	09:01:58	2458132.87637	1	-1.154	0.019	13.21	0.03
Mrk 421	2018-01-15	09:04:50	2458133.87836	1	-1.220	0.005	13.14	0.02
Mrk 421	2018-01-19	10:49:53	2458137.95131	1	-1.240	0.008	13.12	0.02
Mrk 421	2018-01-20	06:10:17	2458138.75714	1	-1.306	0.004	13.05	0.02
Mrk 421	2018-01-20	09:32:43	2458138.89772	1	-1.301	0.003	13.06	0.02
Mrk 421	2018-01-21	06:36:11	2458139.77513	1	-1.275	0.013	13.09	0.02
Mrk 421	2018-01-21	09:47:19	2458139.90786	1	-1.278	0.003	13.08	0.02
Mrk 421	2018-01-21	13:25:49	2458140.05959	1	-1.234	0.014	13.13	0.02
Mrk 421	2018-01-22	05:58:04	2458140.74866	1	-1.284	0.034	13.08	0.04
Mrk 421	2018-01-22	09:44:05	2458140.90561	1	-1.348	0.013	13.01	0.02
Mrk 421	2018-01-23	05:52:28	2458141.74477	1	-1.306	0.007	13.05	0.02
Mrk 421	2018-01-23	09:54:27	2458141.91281	1	-1.303	0.005	13.06	0.02
Mrk 421	2018-01-23	12:59:25	2458142.04126	1	-1.279	0.006	13.08	0.02
Mrk 421	2018-02-08	07:03:23	2458157.79402	1	-1.372	0.002	12.99	0.02
Mrk 421	2018-02-08	13:22:39	2458158.05740	1	-1.324	0.003	13.04	0.02
Mrk 421	2018-02-09	08:05:54	2458158.83743	1	-1.304	0.002	13.06	0.02
Mrk 421	2018-02-09	12:48:06	2458159.03340	1	-1.273	0.006	13.09	0.02
Mrk 421	2018-02-10	06:49:20	2458159.78426	1	-1.268	0.005	13.09	0.02
Mrk 421	2018-02-11	13:10:10	2458161.04873	1	-1.392	0.007	12.97	0.02
Mrk 421	2018-02-12	05:33:27	2458161.73156	1	-1.405	0.013	12.96	0.02
Mrk 421	2018-02-17	11:41:33	2458166.98719	1	-1.437	0.031	12.92	0.04
Mrk 421	2018-02-18	13:09:37	2458168.04834	1	-1.372	0.008	12.99	0.02
Mrk 421	2018-02-21	04:39:14	2458170.69391	1	-1.361	0.007	13.00	0.02
Mrk 421	2018-03-07	08:48:43	2458184.86716	1	-1.041	0.006	13.32	0.02
Mrk 421	2018-03-09	06:30:31	2458186.77119	1	-1.117	0.018	13.24	0.03
Mrk 421	2018-03-13	11:44:38	2458190.98933	1	-1.080	0.046	13.28	0.05
Mrk 421	2018-03-16	05:41:22	2458193.73706	1	-0.906	0.006	13.45	0.02
Mrk 421	2018-03-17	10:00:50	2458194.91725	1	-1.002	0.004	13.36	0.02
Mrk 421	2018-03-19	06:21:58	2458196.76525	1	-1.026	0.003	13.33	0.02
Mrk 421	2018-04-08	06:33:59	2458216.77360	1	-1.069	0.005	13.29	0.02
Mrk 421	2018-04-10	05:55:24	2458218.74681	1	-1.143	0.004	13.22	0.02
Mrk 421	2018-04-11	06:10:55	2458219.75758	1	-1.136	0.015	13.22	0.03
Mrk 421	2018-04-12	07:47:16	2458220.82449	1	-1.131	0.010	13.23	0.02
Mrk 421	2018-04-13	06:27:23	2458221.76902	1	-1.138	0.025	13.22	0.03
Mrk 421	2018-05-11	07:14:44	2458249.80190	1	-1.318	0.006	13.04	0.02
Mrk 421	2018-05-12	03:12:06	2458250.63340	1	-1.317	0.004	13.04	0.02
Mrk 421	2018-05-13	03:11:25	2458251.63293	1	-1.226	0.004	13.13	0.02
Mrk 421	2018-05-14	04:46:45	2458252.69913	1	-1.183	0.004	13.18	0.02
Mrk 421	2018-05-15	03:13:10	2458253.63414	1	-1.136	0.004	13.22	0.02
Mrk 421	2018-05-16	03:11:34	2458254.63303	1	-1.088	0.004	13.27	0.02
Mrk 421	2018-05-17	03:16:58	2458255.63678	1	-1.035	0.004	13.32	0.02
Mrk 421	2018-05-18	03:14:55	2458256.63536	1	-0.991	0.004	13.37	0.02
Mrk 421	2018-06-12	04:45:51	2458281.69851	1	-0.782	0.013	13.58	0.02
Mrk 421	2018-06-19	04:23:57	2458288.68330	1	-0.559	0.003	13.80	0.02
Mrk 421	2018-06-20	04:17:07	2458289.67855	1	-0.537	0.009	13.82	0.02
Mrk 421	2018-06-21	04:13:52	2458290.67630	1	-0.504	0.005	13.86	0.02
Mrk 421	2018-06-22	04:19:28	2458291.68019	1	-0.556	0.006	13.80	0.02
Mrk 421	2018-06-23	04:07:10	2458292.67164	1	-0.537	0.003	13.82	0.02
Mrk 421	2018-07-07	03:54:23	2458306.66277	1	-0.715	0.006	13.64	0.02