PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/26-05:28:00
G01     317.1          21.6                6.5 +/-    3.37      13.8 +/-    3.37  0.030 / 0.010
G08     252.0          10.9                5.2 +/-   14.32      14.2 +/-   14.32  0.030 / 0.010
G10     85.2           51.8                4.5 +/-    1.23       5.5 +/-    1.23  0.130 / 0.140
G11     297.0          27.0                3.4 +/-    2.93       6.4 +/-    2.93  0.220 / 0.190
G14     316.5          71.6                4.5 +/-    0.57       4.7 +/-    0.57  0.050 / 0.010
G18     104.5          27.8               -4.0 +/-   41.51      -7.3 +/-   41.51  0.040 / 0.010
G22     302.7          14.6                2.7 +/-    3.49       6.8 +/-    3.49  0.100 / 0.240
G25     93.0           10.2                1.3 +/-   20.45       3.6 +/-   20.45  0.090 / 0.310
G31     174.9          46.8                7.3 +/-    1.30       9.6 +/-    1.30  0.050 / 0.040
G32     13.4           64.9                0.9 +/-    0.52       0.9 +/-    0.52  0.050 / 0.050