PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/06-16:12:50
G01     68.9           32.7                8.5 +/-    0.81      14.1 +/-    0.81  0.030 / 0.030
G07     138.3          29.7               11.5 +/-    1.11      20.2 +/-    1.11  0.030 / 0.040
G11     52.4           29.4                8.7 +/-    1.72      15.3 +/-    1.72  0.030 / 0.030
G13     272.3          37.4                9.6 +/-    3.05      14.7 +/-    3.05  0.030 / 0.040
G15     303.0          14.5                6.0 +/-    3.38      15.1 +/-    3.38  0.040 / 0.050
G17     236.2          69.8               12.1 +/-    0.47      12.8 +/-    0.47  0.040 / 0.040
G18     47.7           17.3                9.2 +/-    2.14      21.5 +/-    2.14  0.080 / 0.120
G19     225.2          40.8               13.0 +/-    1.53      18.7 +/-    1.53  0.070 / 0.110
G28     22.3           58.9               12.0 +/-    2.24      13.8 +/-    2.24  0.060 / 0.090
G30     137.2          60.9               12.8 +/-    0.31      14.4 +/-    0.31  0.070 / 0.100