PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/04-13:28:10
G02     205.6          41.5               10.0 +/-    0.88      14.2 +/-    0.88  0.060 / 0.090
G06     150.2          75.3               10.1 +/-    1.23      10.4 +/-    1.23  0.060 / 0.080
G12     311.4          20.3                6.9 +/-    1.86      15.0 +/-    1.86  0.100 / 0.180
G17     44.6           42.0                7.3 +/-    0.55      10.2 +/-    0.55  0.110 / 0.130
G19     18.8           59.6                8.1 +/-    1.01       9.2 +/-    1.01  0.190 / 0.280
G24     291.5          40.0                6.7 +/-    1.10       9.7 +/-    1.10  0.170 / 0.260
G28     109.6          25.7               10.8 +/-    0.95      20.7 +/-    0.95  0.030 / 0.060