PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/11-10:27:50
G02     201.7          31.0                7.2 +/-    1.87      12.4 +/-    1.87  0.060 / 0.130
G06     171.0          61.9                6.8 +/-    0.66       7.6 +/-    0.66  0.050 / 0.110
G12     305.0          10.9               -3.9 +/-   14.60     -10.8 +/-   14.60  0.090 / 0.090
G17     33.9           51.0                3.1 +/-    0.53       3.9 +/-    0.53  0.060 / 0.110
G19     356.0          67.0                3.8 +/-    0.70       4.1 +/-    0.70  0.130 / 0.300
G24     303.8          34.7                3.8 +/-    0.97       6.1 +/-    0.97  0.150 / 0.270
G28     98.8           33.3                4.5 +/-    0.64       7.4 +/-    0.64  0.030 / 0.050