PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/08-09:12:40
G01     88.6           32.1                6.0 +/-    0.93      10.1 +/-    0.93  0.030 / 0.030
G07     126.9          43.3                8.3 +/-    1.05      11.4 +/-    1.05  0.030 / 0.020
G11     65.5           38.4                5.0 +/-    0.59       7.4 +/-    0.59  0.040 / 0.050
G13     292.6          36.8                6.9 +/-    1.71      10.6 +/-    1.71  0.040 / 0.060
G17     215.0          57.1                8.9 +/-    0.74      10.3 +/-    0.74  0.060 / 0.190
G18     60.7           22.7                3.7 +/-    0.85       7.6 +/-    0.85  0.060 / 0.170
G19     215.4          24.6               10.4 +/-    3.68      20.5 +/-    3.68  0.080 / 0.110
G28     349.2          61.7                4.6 +/-    0.61       5.2 +/-    0.61  0.090 / 0.100
G30     105.7          76.8                8.1 +/-    0.55       8.3 +/-    0.55  0.070 / 0.130