PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/13-08:58:10
G01     84.9           32.7                5.7 +/-    0.69       9.4 +/-    0.69  0.020 / 0.030
G07     129.4          40.5                6.8 +/-    0.67       9.8 +/-    0.67  0.030 / 0.030
G11     62.4           36.9                4.3 +/-    0.70       6.7 +/-    0.70  0.040 / 0.060
G13     289.0          37.5                4.7 +/-    0.96       7.2 +/-    0.96  0.040 / 0.070
G17     217.6          60.3                8.8 +/-    0.52      10.0 +/-    0.52  0.110 / 0.130
G18     57.6           21.8                1.7 +/-    1.56       3.6 +/-    1.56  0.100 / 0.090
G19     216.9          27.5                5.1 +/-    1.70       9.5 +/-    1.70  0.100 / 0.120
G28     355.1          61.5                5.0 +/-    1.31       5.6 +/-    1.31  0.080 / 0.130
G30     115.2          74.5                7.4 +/-    0.93       7.7 +/-    0.93  0.080 / 0.180