PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/18-01:12:40
G01     85.0           32.8                8.1 +/-    0.83      13.4 +/-    0.83  0.050 / 0.050
G07     129.3          41.9                9.1 +/-    1.22      12.9 +/-    1.22  0.050 / 0.050
G11     66.6           39.6                6.4 +/-    1.07       9.3 +/-    1.07  0.030 / 0.050
G13     290.3          36.6                7.5 +/-    1.03      11.6 +/-    1.03  0.050 / 0.050
G15     311.6          12.4                5.1 +/-    1.57      13.6 +/-    1.57  0.050 / 0.100
G17     218.5          56.3                9.2 +/-    0.81      10.8 +/-    0.81  0.050 / 0.090
G19     216.8          31.5                9.1 +/-    1.42      15.5 +/-    1.42  0.030 / 0.060
G28     359.1          61.2                6.1 +/-    0.68       6.9 +/-    0.68  0.030 / 0.060
G30     119.6          68.1                7.0 +/-    0.98       7.5 +/-    0.98  0.040 / 0.080