PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/13-15:12:30
G02     201.0          16.3                8.6 +/-    1.17      20.6 +/-    1.17  0.110 / 0.160
G06     168.9          53.3               10.0 +/-    0.96      12.1 +/-    0.96  0.120 / 0.190
G13     228.5          14.5                8.7 +/-    2.22      21.9 +/-    2.22  0.090 / 0.110
G17     21.1           60.6                8.6 +/-    0.64       9.7 +/-    0.64  0.100 / 0.110
G19     303.9          70.1                7.9 +/-    0.44       8.4 +/-    0.44  0.060 / 0.080
G24     310.5          29.5                8.1 +/-    1.54      14.4 +/-    1.54  0.050 / 0.080
G28     85.3           41.1                6.9 +/-    1.12       9.8 +/-    1.12  0.220 / 0.270
G30     157.4          18.0                8.2 +/-    1.17      19.0 +/-    1.17  0.130 / 0.290