PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/06-13:42:50
G01     47.9           23.5               10.0 +/-    0.84      20.2 +/-    0.84  0.050 / 0.060
G06     177.7          27.4               13.1 +/-    1.59      24.3 +/-    1.59  0.050 / 0.070
G11     43.6           10.7               10.6 +/-    1.81      29.2 +/-    1.81  0.080 / 0.290
G13     250.1          28.8               10.2 +/-    1.26      18.3 +/-    1.26  0.110 / 0.220
G15     282.8          15.1                7.8 +/-    1.90      19.3 +/-    1.90  0.060 / 0.130
G17     340.6          77.0               11.4 +/-    0.57      11.6 +/-    0.57  0.050 / 0.120
G19     253.8          64.2               10.8 +/-    0.76      11.8 +/-    0.76  0.080 / 0.120
G28     57.2           51.5               11.3 +/-    0.81      14.0 +/-    0.81  0.080 / 0.120
G30     151.0          40.1               13.5 +/-    1.93      19.5 +/-    1.93  0.030 / 0.050