PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/11-15:27:40
G01     48.3           23.8                7.7 +/-    1.69      15.5 +/-    1.69  0.100 / 0.380
G06     177.3          27.4               10.2 +/-    1.58      18.8 +/-    1.58  0.160 / 0.280
G11     43.6           10.7                8.5 +/-    1.40      23.3 +/-    1.40  0.060 / 0.170
G13     250.4          29.1                9.5 +/-    2.23      17.0 +/-    2.23  0.080 / 0.120
G15     284.4          15.0                8.6 +/-    1.92      21.4 +/-    1.92  0.040 / 0.060
G17     338.7          77.3                8.8 +/-    0.39       9.0 +/-    0.39  0.050 / 0.080
G19     252.7          63.9               11.0 +/-    1.00      12.1 +/-    1.00  0.080 / 0.180
G28     56.1           51.8                9.1 +/-    0.63      11.2 +/-    0.63  0.070 / 0.110
G30     150.8          41.2                8.3 +/-    0.89      11.8 +/-    0.89  0.020 / 0.020