PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/18-06:27:50
G01     86.9           32.4                5.5 +/-    0.53       9.2 +/-    0.53  0.030 / 0.030
G07     128.1          41.3                7.7 +/-    0.67      10.9 +/-    0.67  0.030 / 0.040
G11     63.8           37.6                3.8 +/-    0.32       5.7 +/-    0.32  0.040 / 0.050
G13     290.9          37.2                4.7 +/-    1.95       7.2 +/-    1.95  0.050 / 0.060
G17     215.9          59.1                7.6 +/-    1.20       8.7 +/-    1.20  0.070 / 0.110
G19     215.9          26.9                5.7 +/-    0.98      10.6 +/-    0.98  0.080 / 0.140
G28     350.7          61.7                2.4 +/-    0.94       2.7 +/-    0.94  0.040 / 0.060
G30     110.5          75.8                6.7 +/-    1.31       6.9 +/-    1.31  0.050 / 0.060