PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/12-05:42:40
G01     58.0           29.8                4.5 +/-    0.49       7.9 +/-    0.49  0.080 / 0.280
G06     180.3          15.6               -5.3 +/-   37.96     -12.9 +/-   37.96  0.130 / 0.220
G07     142.8          18.4                8.7 +/-    1.21      19.9 +/-    1.21  0.050 / 0.110
G11     46.6           20.8                3.4 +/-    1.06       7.3 +/-    1.06  0.070 / 0.110
G13     259.6          34.9                7.0 +/-    0.94      11.2 +/-    0.94  0.070 / 0.140
G15     293.5          15.7                1.5 +/-    2.56       3.6 +/-    2.56  0.050 / 0.120
G17     277.8          79.7                8.4 +/-    0.83       8.5 +/-    0.83  0.190 / 0.380
G19     233.8          50.1               10.0 +/-    0.79      12.7 +/-    0.79  0.200 / 0.240
G28     35.5           57.2                6.4 +/-    0.33       7.4 +/-    0.33  0.040 / 0.040
G30     145.4          51.9                9.1 +/-    0.93      11.2 +/-    0.93  0.030 / 0.050