PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/31-05:58:10
G01     107.0          24.0                7.1 +/-    1.12      14.3 +/-    1.12  0.030 / 0.030
G07     103.6          59.2                7.4 +/-    0.36       8.5 +/-    0.36  0.030 / 0.030
G08     42.1           22.5                3.1 +/-    1.24       6.4 +/-    1.24  0.040 / 0.100
G09     173.4          13.8                6.2 +/-    1.58      15.8 +/-    1.58  0.040 / 0.080
G11     95.2           44.7                7.4 +/-    0.62      10.0 +/-    0.62  0.060 / 0.190
G13     310.5          28.6                4.3 +/-    0.99       7.8 +/-    0.99  0.060 / 0.170
G17     204.1          35.0                8.3 +/-    1.58      13.1 +/-    1.58  0.040 / 0.040
G19     207.3          13.2                6.3 +/-    1.11      16.4 +/-    1.11  0.040 / 0.050
G28     299.1          56.5                4.5 +/-    0.91       5.3 +/-    0.91  0.040 / 0.050
G30     0.9            75.6                6.9 +/-    0.70       7.1 +/-    0.70  0.040 / 0.080