PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/29-07:13:00
G01     106.0          26.0                4.5 +/-    0.84       8.6 +/-    0.84  0.030 / 0.030
G07     109.4          56.1                5.7 +/-    0.37       6.7 +/-    0.37  0.030 / 0.020
G08     41.5           17.1                2.6 +/-    0.83       6.2 +/-    0.83  0.030 / 0.050
G11     85.2           42.4                5.8 +/-    0.53       8.2 +/-    0.53  0.030 / 0.050
G13     308.5          29.7                5.0 +/-    2.07       8.8 +/-    2.07  0.070 / 0.180
G17     205.3          41.3                6.4 +/-    0.92       9.2 +/-    0.92  0.100 / 0.180
G18     76.8           23.8                4.0 +/-    1.15       8.1 +/-    1.15  0.060 / 0.160
G19     209.7          11.0               -4.2 +/-    4.06     -11.3 +/-    4.06  0.110 / 0.180
G28     317.0          60.7                5.0 +/-    0.64       5.6 +/-    0.64  0.080 / 0.120
G30     19.2           78.3                6.6 +/-    0.49       6.7 +/-    0.49  0.070 / 0.160