PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/29-07:57:50
G01     82.4           33.0                4.6 +/-    0.95       7.5 +/-    0.95  0.030 / 0.030
G07     131.1          38.3                6.2 +/-    0.62       9.2 +/-    0.62  0.030 / 0.040
G11     60.2           35.6                3.8 +/-    0.69       6.0 +/-    0.69  0.050 / 0.070
G13     286.3          37.9                6.4 +/-    1.62       9.6 +/-    1.62  0.050 / 0.070
G15     313.1          10.6               -3.9 +/-   19.35     -10.8 +/-   19.35  0.090 / 0.100
G17     219.7          62.6                8.7 +/-    0.59       9.7 +/-    0.59  0.090 / 0.120
G18     55.4           20.9                2.4 +/-    1.13       5.1 +/-    1.13  0.100 / 0.270
G19     217.9          29.8                6.7 +/-    1.46      11.7 +/-    1.46  0.090 / 0.260
G28     358.7          61.4                4.2 +/-    0.65       4.7 +/-    0.65  0.130 / 0.090
G30     120.5          72.7                7.5 +/-    1.39       7.8 +/-    1.39  0.120 / 0.110