PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/24-16:12:50
G01     60.0           30.2               10.2 +/-    0.75      17.8 +/-    0.75  0.080 / 0.150
G06     180.0          15.3               15.0 +/-    2.03      37.1 +/-    2.03  0.080 / 0.160
G07     141.8          19.0               12.1 +/-    1.84      27.3 +/-    1.84  0.040 / 0.050
G11     47.4           20.9                8.1 +/-    1.43      17.4 +/-    1.43  0.040 / 0.050
G13     264.9          34.9               11.5 +/-    0.95      18.3 +/-    0.95  0.050 / 0.090
G15     297.6          15.2                7.8 +/-    2.41      19.3 +/-    2.41  0.050 / 0.100
G17     266.5          78.6               12.1 +/-    0.58      12.3 +/-    0.58  0.070 / 0.220
G19     233.1          52.8               13.9 +/-    1.04      17.0 +/-    1.04  0.070 / 0.270
G28     35.6           56.6                9.9 +/-    0.61      11.6 +/-    0.61  0.110 / 0.380
G30     143.3          55.0               12.5 +/-    1.32      14.9 +/-    1.32  0.140 / 0.340