PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/08-19:43:10
G01     86.0           32.7               17.4 +/-    0.81      28.9 +/-    0.81  0.140 / 0.390
G07     128.6          42.9               18.7 +/-    0.94      26.0 +/-    0.94  0.090 / 0.300
G11     65.8           39.0               14.9 +/-    0.34      22.0 +/-    0.34  0.030 / 0.030
G13     290.6          36.8               14.1 +/-    1.34      21.7 +/-    1.34  0.030 / 0.040
G15     313.1          11.3                9.8 +/-    2.67      26.5 +/-    2.67  0.050 / 0.110
G17     217.9          53.3               18.4 +/-    1.60      22.3 +/-    1.60  0.060 / 0.110
G18     60.6           23.3               13.4 +/-    0.37      27.3 +/-    0.37  0.040 / 0.090
G19     216.5          29.1               19.9 +/-    1.73      35.5 +/-    1.73  0.040 / 0.090
G28     356.7          61.4               14.9 +/-    1.34      16.7 +/-    1.34  0.040 / 0.050
G30     115.7          72.2               17.8 +/-    0.53      18.6 +/-    0.53  0.050 / 0.060