PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/29-06:57:40
G01     80.8           32.1                5.4 +/-    0.67       9.0 +/-    0.67  0.030 / 0.030
G07     130.3          39.6                7.0 +/-    0.76      10.3 +/-    0.76  0.030 / 0.030
G11     63.7           39.8                4.3 +/-    0.49       6.3 +/-    0.49  0.070 / 0.090
G13     286.1          38.7                5.7 +/-    1.19       8.4 +/-    1.19  0.050 / 0.100
G15     309.8          13.2                2.1 +/-    1.56       5.4 +/-    1.56  0.050 / 0.080
G17     218.1          59.0                8.1 +/-    0.80       9.2 +/-    0.80  0.040 / 0.060
G19     216.4          34.9                7.9 +/-    1.63      12.6 +/-    1.63  0.040 / 0.090
G28     343.2          61.4                4.8 +/-    0.78       5.3 +/-    0.78  0.050 / 0.110
G30     118.5          74.7                7.4 +/-    1.07       7.6 +/-    1.07  0.050 / 0.060