PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/18-14:57:30
G02     201.4          18.5                8.8 +/-    0.99      20.1 +/-    0.99  0.190 / 0.230
G06     167.5          56.1                9.7 +/-    0.73      11.4 +/-    0.73  0.140 / 0.300
G13     226.7          12.8                8.5 +/-    3.12      22.2 +/-    3.12  0.070 / 0.100
G17     24.2           58.4                8.1 +/-    0.71       9.3 +/-    0.71  0.080 / 0.100
G19     311.8          70.2                7.4 +/-    0.66       7.8 +/-    0.66  0.040 / 0.040
G24     308.8          31.3                5.6 +/-    1.00       9.6 +/-    1.00  0.040 / 0.040
G28     88.1           39.7                8.4 +/-    0.61      12.2 +/-    0.61  0.120 / 0.420
G30     157.8          15.8                9.7 +/-    2.26      23.8 +/-    2.26  0.090 / 0.500