PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/11-17:43:10
G02     201.7          24.5               13.1 +/-    3.25      25.9 +/-    3.25  0.250 / 0.380
G06     165.3          60.9               15.6 +/-    0.74      17.6 +/-    0.74  0.260 / 0.390
G12     303.5          11.5                6.2 +/-   22.16      16.9 +/-   22.16  0.120 / 0.380
G17     26.9           56.2               12.6 +/-    0.57      14.8 +/-    0.57  0.270 / 0.490
G19     330.0          69.7               13.3 +/-    0.57      14.1 +/-    0.57  0.080 / 0.220
G24     305.5          34.0               14.3 +/-    1.48      23.2 +/-    1.48  0.070 / 0.220
G28     93.5           36.8               13.2 +/-    0.60      20.2 +/-    0.60  0.070 / 0.110
G30     157.9          10.5               14.6 +/-    2.97      40.2 +/-    2.97  0.070 / 0.100