PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/18-07:12:50
G01     124.3          13.8                3.9 +/-    2.80      10.0 +/-    2.80  0.030 / 0.040
G07     66.2           68.2                3.8 +/-    0.81       4.0 +/-    0.81  0.040 / 0.030
G08     47.1           34.6                3.5 +/-    0.40       5.6 +/-    0.40  0.030 / 0.040
G09     174.1          27.9                7.0 +/-    1.41      12.9 +/-    1.41  0.020 / 0.040
G11     112.5          37.4                5.6 +/-    0.99       8.5 +/-    0.99  0.130 / 0.370
G13     320.0          14.8                0.9 +/-    1.59       2.4 +/-    1.59  0.150 / 0.410
G17     199.5          20.3                4.6 +/-    2.31      10.1 +/-    2.31  0.120 / 0.280
G18     98.4           18.2                4.8 +/-    1.24      11.0 +/-    1.24  0.110 / 0.260
G28     280.1          53.7                5.5 +/-    0.65       6.7 +/-    0.65  0.130 / 0.490
G30     334.5          62.1                3.1 +/-    0.58       3.5 +/-    0.58  0.120 / 0.550