PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/07-15:13:00
G01     61.4           30.7                9.3 +/-    0.76      16.1 +/-    0.76  0.050 / 0.100
G06     180.4          13.9               12.5 +/-    1.97      31.9 +/-    1.97  0.080 / 0.100
G07     141.3          20.5               10.7 +/-    0.75      23.3 +/-    0.75  0.020 / 0.030
G11     48.1           22.1                7.9 +/-    0.81      16.6 +/-    0.81  0.020 / 0.030
G13     266.6          35.3               12.7 +/-    1.11      20.0 +/-    1.11  0.070 / 0.130
G15     298.1          15.4                8.2 +/-    3.44      20.2 +/-    3.44  0.050 / 0.180
G17     260.7          78.0               13.2 +/-    0.54      13.4 +/-    0.54  0.040 / 0.060
G19     231.8          51.6               14.7 +/-    0.76      18.1 +/-    0.76  0.040 / 0.040
G28     33.7           57.0               10.9 +/-    0.56      12.7 +/-    0.56  0.060 / 0.160
G30     142.3          56.1               12.9 +/-    0.57      15.2 +/-    0.57  0.070 / 0.130