A Multistep Method for Automatic Determination and Optimization of Microseismic P-Phase Arrival Times in a Coal Mine

Table 2

First arrival time of every station (sensor).

Channel number	Arrival time (s)
1	0.507
2	0.505
3	0.519
4	0.003
5	0.530
6	0.490
7	0.542
8	0.471
9	0.527
10	1
11	0.529
12	1