PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/18-06:12:40
G01     60.6           29.9                2.2 +/-    0.88       3.9 +/-    0.88  0.030 / 0.040
G06     179.6          12.9                3.2 +/-    2.96       8.3 +/-    2.96  0.030 / 0.030
G07     140.7          24.5                6.6 +/-    1.51      13.0 +/-    1.51  0.090 / 0.150
G11     50.4           29.1                2.5 +/-    1.36       4.5 +/-    1.36  0.090 / 0.180
G13     263.8          37.2                6.0 +/-    1.38       9.1 +/-    1.38  0.040 / 0.050
G15     293.9          17.0                3.3 +/-    1.34       7.9 +/-    1.34  0.040 / 0.060
G17     248.5          75.3                6.0 +/-    0.80       6.1 +/-    0.80  0.060 / 0.150
G19     229.3          51.0                5.8 +/-    0.43       7.2 +/-    0.43  0.050 / 0.170
G28     15.8           60.7                3.9 +/-    0.93       4.4 +/-    0.93  0.040 / 0.060
G30     143.0          58.7                5.6 +/-    1.21       6.5 +/-    1.21  0.040 / 0.060