PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/24-12:42:50
G01     74.2           33.2                3.0 +/-    1.01       5.0 +/-    1.01  0.030 / 0.020
G07     135.6          33.5                4.8 +/-    1.08       7.9 +/-    1.08  0.020 / 0.020
G11     54.8           31.5                3.0 +/-    1.82       5.0 +/-    1.82  0.050 / 0.070
G13     277.8          38.0                4.3 +/-    1.71       6.5 +/-    1.71  0.050 / 0.080
G15     308.3          12.5                2.2 +/-    4.53       5.7 +/-    4.53  0.050 / 0.070
G17     228.9          68.4                4.3 +/-    0.91       4.6 +/-    0.91  0.040 / 0.080
G18     50.8           19.1                3.6 +/-    1.92       8.0 +/-    1.92  0.060 / 0.100
G19     221.9          35.6                5.5 +/-    2.19       8.6 +/-    2.19  0.060 / 0.100
G28     13.8           60.0                4.7 +/-    1.75       5.3 +/-    1.75  0.160 / 0.160
G30     132.0          66.6                4.5 +/-    0.57       4.8 +/-    0.57  0.190 / 0.190